repos/blastem: m68k_to_x86.c annotate

annotate m68k_to_x86.c @ 216:0b5ec22dcda2

Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source.

author	Mike Pavone <pavone@retrodev.com>
date	Fri, 19 Apr 2013 21:36:54 -0700
parents	4d4559b04c59
children	1abf8e967b33

rev	line source
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	1 #include "gen_x86.h"
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2 #include "m68k_to_x86.h"
208 3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	3 #include "68kinst.h"
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	4 #include "mem.h"
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 210 diff changeset	5 #include "x86_backend.h"
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	6 #include <stdio.h>
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	7 #include <stddef.h>
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	8 #include <stdlib.h>
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	9 #include <string.h>
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	10
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	11 #define BUS 4
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	12 #define PREDEC_PENALTY 2
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	13 #define CYCLES RAX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	14 #define LIMIT RBP
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	15 #define SCRATCH1 RCX
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	16 #define SCRATCH2 RDI
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	17 #define CONTEXT RSI
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	18
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	19 #define FLAG_N RBX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	20 #define FLAG_V BH
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	21 #define FLAG_Z RDX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	22 #define FLAG_C DH
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	23
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	24 char disasm_buf[1024];
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	25
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	26 void handle_cycle_limit_int();
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	27 void m68k_read_word_scratch1();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	28 void m68k_read_long_scratch1();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	29 void m68k_read_byte_scratch1();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	30 void m68k_write_word();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	31 void m68k_write_long_lowfirst();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	32 void m68k_write_long_highfirst();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	33 void m68k_write_byte();
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	34 void m68k_save_context();
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	35 void m68k_load_context();
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	36 void m68k_modified_ret_addr();
53 44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	37 void m68k_native_addr();
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	38 void m68k_native_addr_and_sync();
152 79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	39 void m68k_trap();
176 e2918b5208eb Print a message when we try to run an invalid instruction, not when we try to translate it Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	40 void m68k_invalid();
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	41 void m68k_retrans_stub();
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	42 void set_sr();
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	43 void set_ccr();
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	44 void get_sr();
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	45 void do_sync();
194 811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	46 void bcd_add();
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	47 void bcd_sub();
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	48 void m68k_start_context(uint8_t * addr, m68k_context * context);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	49
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	50 uint8_t * cycles(uint8_t * dst, uint32_t num)
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	51 {
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	52 dst = add_ir(dst, num, CYCLES, SZ_D);
118 d9ff99ef5533 cycles should return dst Mike Pavone <pavone@retrodev.com> parents: 116 diff changeset	53 return dst;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	54 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	55
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	56 uint8_t * check_cycles_int(uint8_t * dst, uint32_t address)
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	57 {
87 60b5c9e2f4e0 vertical interrupts now work Mike Pavone <pavone@retrodev.com> parents: 86 diff changeset	58 dst = cmp_rr(dst, CYCLES, LIMIT, SZ_D);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	59 uint8_t * jmp_off = dst+1;
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	60 dst = jcc(dst, CC_NC, dst + 7);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	61 dst = mov_ir(dst, address, SCRATCH1, SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	62 dst = call(dst, (uint8_t *)handle_cycle_limit_int);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	63 *jmp_off = dst - (jmp_off+1);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	64 return dst;
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	65 }
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	66
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	67 int8_t native_reg(m68k_op_info * op, x86_68k_options * opts)
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	68 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	69 if (op->addr_mode == MODE_REG) {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	70 return opts->dregs[op->params.regs.pri];
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	71 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	72 if (op->addr_mode == MODE_AREG) {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	73 return opts->aregs[op->params.regs.pri];
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	74 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	75 return -1;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	76 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	77
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	78 //must be called with an m68k_op_info that uses a register
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	79 size_t reg_offset(m68k_op_info *op)
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	80 {
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	81 if (op->addr_mode == MODE_REG) {
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	82 return offsetof(m68k_context, dregs) + sizeof(uint32_t) * op->params.regs.pri;
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	83 }
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	84 return offsetof(m68k_context, aregs) + sizeof(uint32_t) * op->params.regs.pri;
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	85 }
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	86
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	87 void print_regs_exit(m68k_context * context)
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	88 {
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	89 printf("XNZVC\n%d%d%d%d%d\n", context->flags[0], context->flags[1], context->flags[2], context->flags[3], context->flags[4]);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	90 for (int i = 0; i < 8; i++) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	91 printf("d%d: %X\n", i, context->dregs[i]);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	92 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	93 for (int i = 0; i < 8; i++) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	94 printf("a%d: %X\n", i, context->aregs[i]);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	95 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	96 exit(0);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	97 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	98
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	99 uint8_t * translate_m68k_src(m68kinst * inst, x86_ea * ea, uint8_t * out, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	100 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	101 int8_t reg = native_reg(&(inst->src), opts);
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	102 uint8_t sec_reg;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	103 int32_t dec_amount,inc_amount;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	104 if (reg >= 0) {
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	105 ea->mode = MODE_REG_DIRECT;
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	106 if (inst->dst.addr_mode == MODE_AREG && inst->extra.size == OPSIZE_WORD) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	107 out = movsx_rr(out, reg, SCRATCH1, SZ_W, SZ_D);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	108 ea->base = SCRATCH1;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	109 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	110 ea->base = reg;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	111 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	112 return out;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	113 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	114 switch (inst->src.addr_mode)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	115 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	116 case MODE_REG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	117 case MODE_AREG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	118 //We only get one memory parameter, so if the dst operand is a register in memory,
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	119 //we need to copy this to a temp register first
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	120 reg = native_reg(&(inst->dst), opts);
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	121 if (reg >= 0 \|\| inst->dst.addr_mode == MODE_UNUSED \|\| !(inst->dst.addr_mode == MODE_REG \|\| inst->dst.addr_mode == MODE_AREG)
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	122 \|\| inst->op == M68K_EXG) {
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	123
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	124 ea->mode = MODE_REG_DISPLACE8;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	125 ea->base = CONTEXT;
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	126 ea->disp = reg_offset(&(inst->src));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	127 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	128 if (inst->dst.addr_mode == MODE_AREG && inst->extra.size == OPSIZE_WORD) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	129 out = movsx_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_W, SZ_D);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	130 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	131 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, inst->extra.size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	132 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	133 ea->mode = MODE_REG_DIRECT;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	134 ea->base = SCRATCH1;
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	135 //we're explicitly handling the areg dest here, so we exit immediately
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	136 return out;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	137 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	138 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	139 case MODE_AREG_PREDEC:
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	140 dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : (inst->src.params.regs.pri == 7 ? 2 :1));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	141 out = cycles(out, PREDEC_PENALTY);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	142 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
158 a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 157 diff changeset	143 out = sub_ir(out, dec_amount, opts->aregs[inst->src.params.regs.pri], SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	144 } else {
158 a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 157 diff changeset	145 out = sub_irdisp8(out, dec_amount, CONTEXT, reg_offset(&(inst->src)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	146 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	147 case MODE_AREG_INDIRECT:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	148 case MODE_AREG_POSTINC:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	149 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	150 out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	151 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	152 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	153 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	154 switch (inst->extra.size)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	155 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	156 case OPSIZE_BYTE:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	157 out = call(out, (char *)m68k_read_byte_scratch1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	158 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	159 case OPSIZE_WORD:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	160 out = call(out, (char *)m68k_read_word_scratch1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	161 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	162 case OPSIZE_LONG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	163 out = call(out, (char *)m68k_read_long_scratch1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	164 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	165 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	166
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	167 if (inst->src.addr_mode == MODE_AREG_POSTINC) {
183 2f08d9e90a4c Fix (a7)+ src when size is byte, fix trap return address, make div with areg src decoded to invalid Mike Pavone <pavone@retrodev.com> parents: 182 diff changeset	168 inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : (inst->src.params.regs.pri == 7 ? 2 : 1));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	169 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	170 out = add_ir(out, inc_amount, opts->aregs[inst->src.params.regs.pri], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	171 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	172 out = add_irdisp8(out, inc_amount, CONTEXT, reg_offset(&(inst->src)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	173 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	174 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	175 ea->mode = MODE_REG_DIRECT;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	176 ea->base = (inst->dst.addr_mode == MODE_AREG_PREDEC && inst->op != M68K_MOVE) ? SCRATCH2 : SCRATCH1;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	177 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	178 case MODE_AREG_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	179 out = cycles(out, BUS);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	180 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	181 out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	182 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	183 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	184 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	185 out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	186 switch (inst->extra.size)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	187 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	188 case OPSIZE_BYTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	189 out = call(out, (char *)m68k_read_byte_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	190 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	191 case OPSIZE_WORD:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	192 out = call(out, (char *)m68k_read_word_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	193 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	194 case OPSIZE_LONG:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	195 out = call(out, (char *)m68k_read_long_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	196 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	197 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	198 ea->mode = MODE_REG_DIRECT;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	199 ea->base = SCRATCH1;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	200 break;
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	201 case MODE_AREG_INDEX_DISP8:
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	202 out = cycles(out, 6);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	203 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	204 out = mov_rr(out, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	205 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	206 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	207 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	208 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	209 if (inst->src.params.regs.sec & 1) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	210 if (inst->src.params.regs.sec & 0x10) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	211 if (opts->aregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	212 out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	213 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	214 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	215 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	216 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	217 if (opts->dregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	218 out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	219 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	220 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	221 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	222 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	223 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	224 if (inst->src.params.regs.sec & 0x10) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	225 if (opts->aregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	226 out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	227 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	228 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	229 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	230 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	231 if (opts->dregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	232 out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	233 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	234 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	235 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	236 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	237 out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	238 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	239 if (inst->src.params.regs.displacement) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	240 out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	241 }
97 c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	242 switch (inst->extra.size)
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	243 {
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	244 case OPSIZE_BYTE:
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	245 out = call(out, (char *)m68k_read_byte_scratch1);
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	246 break;
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	247 case OPSIZE_WORD:
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	248 out = call(out, (char *)m68k_read_word_scratch1);
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	249 break;
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	250 case OPSIZE_LONG:
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	251 out = call(out, (char *)m68k_read_long_scratch1);
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	252 break;
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	253 }
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	254 ea->mode = MODE_REG_DIRECT;
c7185fd840fc Fix address register indexed addressing (probably) Mike Pavone <pavone@retrodev.com> parents: 96 diff changeset	255 ea->base = SCRATCH1;
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	256 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	257 case MODE_PC_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	258 out = cycles(out, BUS);
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	259 out = mov_ir(out, inst->src.params.regs.displacement + inst->address+2, SCRATCH1, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	260 switch (inst->extra.size)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	261 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	262 case OPSIZE_BYTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	263 out = call(out, (char *)m68k_read_byte_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	264 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	265 case OPSIZE_WORD:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	266 out = call(out, (char *)m68k_read_word_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	267 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	268 case OPSIZE_LONG:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	269 out = call(out, (char *)m68k_read_long_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	270 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	271 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	272 ea->mode = MODE_REG_DIRECT;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	273 ea->base = SCRATCH1;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	274 break;
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	275 case MODE_PC_INDEX_DISP8:
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	276 out = cycles(out, 6);
96 f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	277 out = mov_ir(out, inst->address+2, SCRATCH1, SZ_D);
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	278 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	279 if (inst->src.params.regs.sec & 1) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	280 if (inst->src.params.regs.sec & 0x10) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	281 if (opts->aregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	282 out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	283 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	284 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	285 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	286 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	287 if (opts->dregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	288 out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	289 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	290 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	291 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	292 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	293 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	294 if (inst->src.params.regs.sec & 0x10) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	295 if (opts->aregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	296 out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	297 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	298 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	299 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	300 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	301 if (opts->dregs[sec_reg] >= 0) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	302 out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	303 } else {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	304 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	305 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	306 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	307 out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	308 }
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	309 if (inst->src.params.regs.displacement) {
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	310 out = add_ir(out, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	311 }
96 f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	312 switch (inst->extra.size)
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	313 {
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	314 case OPSIZE_BYTE:
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	315 out = call(out, (char *)m68k_read_byte_scratch1);
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	316 break;
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	317 case OPSIZE_WORD:
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	318 out = call(out, (char *)m68k_read_word_scratch1);
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	319 break;
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	320 case OPSIZE_LONG:
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	321 out = call(out, (char *)m68k_read_long_scratch1);
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	322 break;
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	323 }
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	324 ea->mode = MODE_REG_DIRECT;
f894f85cf39d Fix pc indexed addressing (probably) when used as a source Mike Pavone <pavone@retrodev.com> parents: 95 diff changeset	325 ea->base = SCRATCH1;
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	326 break;
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	327 case MODE_ABSOLUTE:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	328 case MODE_ABSOLUTE_SHORT:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	329 if (inst->src.addr_mode == MODE_ABSOLUTE) {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	330 out = cycles(out, BUS*2);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	331 } else {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	332 out = cycles(out, BUS);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	333 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	334 out = mov_ir(out, inst->src.params.immed, SCRATCH1, SZ_D);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	335 switch (inst->extra.size)
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	336 {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	337 case OPSIZE_BYTE:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	338 out = call(out, (char *)m68k_read_byte_scratch1);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	339 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	340 case OPSIZE_WORD:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	341 out = call(out, (char *)m68k_read_word_scratch1);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	342 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	343 case OPSIZE_LONG:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	344 out = call(out, (char *)m68k_read_long_scratch1);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	345 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	346 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	347 ea->mode = MODE_REG_DIRECT;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	348 ea->base = SCRATCH1;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	349 break;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	350 case MODE_IMMEDIATE:
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	351 case MODE_IMMEDIATE_WORD:
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	352 if (inst->variant != VAR_QUICK) {
64 2b1a65f4b85d Cleanup 68K timing code. Temporarily omment out fFPS counter as it was causing segfaults Mike Pavone <pavone@retrodev.com> parents: 61 diff changeset	353 out = cycles(out, (inst->extra.size == OPSIZE_LONG && inst->src.addr_mode == MODE_IMMEDIATE) ? BUS*2 : BUS);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	354 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	355 ea->mode = MODE_IMMED;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	356 ea->disp = inst->src.params.immed;
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	357 if (inst->dst.addr_mode == MODE_AREG && inst->extra.size == OPSIZE_WORD && ea->disp & 0x8000) {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	358 ea->disp \|= 0xFFFF0000;
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	359 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	360 return out;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	361 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	362 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	363 printf("%X: %s\naddress mode %d not implemented (src)\n", inst->address, disasm_buf, inst->src.addr_mode);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	364 exit(1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	365 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	366 if (inst->dst.addr_mode == MODE_AREG && inst->extra.size == OPSIZE_WORD) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	367 if (ea->mode == MODE_REG_DIRECT) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	368 out = movsx_rr(out, ea->base, SCRATCH1, SZ_W, SZ_D);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	369 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	370 out = movsx_rdisp8r(out, ea->base, ea->disp, SCRATCH1, SZ_W, SZ_D);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	371 ea->mode = MODE_REG_DIRECT;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	372 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	373 ea->base = SCRATCH1;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	374 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	375 return out;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	376 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	377
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	378 uint8_t * translate_m68k_dst(m68kinst * inst, x86_ea * ea, uint8_t * out, x86_68k_options * opts, uint8_t fake_read)
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	379 {
98 104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	380 int8_t reg = native_reg(&(inst->dst), opts), sec_reg;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	381 int32_t dec_amount, inc_amount;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	382 if (reg >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	383 ea->mode = MODE_REG_DIRECT;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	384 ea->base = reg;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	385 return out;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	386 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	387 switch (inst->dst.addr_mode)
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	388 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	389 case MODE_REG:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	390 case MODE_AREG:
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	391 ea->mode = MODE_REG_DISPLACE8;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	392 ea->base = CONTEXT;
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	393 ea->disp = reg_offset(&(inst->dst));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	394 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	395 case MODE_AREG_PREDEC:
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	396 if (inst->src.addr_mode == MODE_AREG_PREDEC) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	397 out = push_r(out, SCRATCH1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	398 }
182 924af8b2f7a0 Fix -(a7) dest when size is byte Mike Pavone <pavone@retrodev.com> parents: 181 diff changeset	399 dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : (inst->dst.params.regs.pri == 7 ? 2 : 1));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	400 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	401 out = sub_ir(out, dec_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	402 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	403 out = sub_irdisp8(out, dec_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	404 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	405 case MODE_AREG_INDIRECT:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	406 case MODE_AREG_POSTINC:
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	407 if (fake_read) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	408 out = cycles(out, inst->extra.size == OPSIZE_LONG ? 8 : 4);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	409 } else {
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	410 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	411 out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH1, SZ_D);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	412 } else {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	413 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH1, SZ_D);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	414 }
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	415 switch (inst->extra.size)
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	416 {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	417 case OPSIZE_BYTE:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	418 out = call(out, (char *)m68k_read_byte_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	419 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	420 case OPSIZE_WORD:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	421 out = call(out, (char *)m68k_read_word_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	422 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	423 case OPSIZE_LONG:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	424 out = call(out, (char *)m68k_read_long_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	425 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	426 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	427 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	428 if (inst->src.addr_mode == MODE_AREG_PREDEC) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	429 //restore src operand to SCRATCH2
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	430 out =pop_r(out, SCRATCH2);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	431 } else {
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	432 //save reg value in SCRATCH2 so we can use it to save the result in memory later
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	433 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	434 out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	435 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	436 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	437 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	438 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	439
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	440 if (inst->dst.addr_mode == MODE_AREG_POSTINC) {
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	441 inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	442 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	443 out = add_ir(out, inc_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	444 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	445 out = add_irdisp8(out, inc_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	446 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	447 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	448 ea->mode = MODE_REG_DIRECT;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	449 ea->base = SCRATCH1;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	450 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	451 case MODE_AREG_DISPLACE:
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	452 out = cycles(out, fake_read ? BUS+(inst->extra.size == OPSIZE_LONG ? BUS*2 : BUS) : BUS);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	453 reg = fake_read ? SCRATCH2 : SCRATCH1;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	454 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	455 out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], reg, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	456 } else {
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	457 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), reg, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	458 }
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	459 out = add_ir(out, inst->dst.params.regs.displacement, reg, SZ_D);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	460 if (!fake_read) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	461 out = push_r(out, SCRATCH1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	462 switch (inst->extra.size)
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	463 {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	464 case OPSIZE_BYTE:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	465 out = call(out, (char *)m68k_read_byte_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	466 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	467 case OPSIZE_WORD:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	468 out = call(out, (char *)m68k_read_word_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	469 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	470 case OPSIZE_LONG:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	471 out = call(out, (char *)m68k_read_long_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	472 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	473 }
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	474 out = pop_r(out, SCRATCH2);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	475 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	476 ea->mode = MODE_REG_DIRECT;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	477 ea->base = SCRATCH1;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	478 break;
98 104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	479 case MODE_AREG_INDEX_DISP8:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	480 out = cycles(out, fake_read ? (6 + inst->extra.size == OPSIZE_LONG ? 8 : 4) : 6);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	481 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	482 out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	483 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	484 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	485 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	486 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	487 if (inst->dst.params.regs.sec & 1) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	488 if (inst->dst.params.regs.sec & 0x10) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	489 if (opts->aregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	490 out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	491 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	492 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	493 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	494 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	495 if (opts->dregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	496 out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	497 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	498 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	499 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	500 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	501 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	502 if (inst->dst.params.regs.sec & 0x10) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	503 if (opts->aregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	504 out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	505 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	506 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	507 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	508 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	509 if (opts->dregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	510 out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	511 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	512 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	513 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	514 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	515 out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	516 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	517 if (inst->dst.params.regs.displacement) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	518 out = add_ir(out, inst->dst.params.regs.displacement, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	519 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	520 if (fake_read) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	521 out = mov_rr(out, SCRATCH1, SCRATCH2, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	522 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	523 out = push_r(out, SCRATCH1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	524 switch (inst->extra.size)
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	525 {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	526 case OPSIZE_BYTE:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	527 out = call(out, (char *)m68k_read_byte_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	528 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	529 case OPSIZE_WORD:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	530 out = call(out, (char *)m68k_read_word_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	531 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	532 case OPSIZE_LONG:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	533 out = call(out, (char *)m68k_read_long_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	534 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	535 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	536 out = pop_r(out, SCRATCH2);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	537 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	538 ea->mode = MODE_REG_DIRECT;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	539 ea->base = SCRATCH1;
161 6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	540 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	541 case MODE_PC_DISPLACE:
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	542 out = cycles(out, fake_read ? BUS+(inst->extra.size == OPSIZE_LONG ? BUS*2 : BUS) : BUS);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	543 out = mov_ir(out, inst->dst.params.regs.displacement + inst->address+2, fake_read ? SCRATCH2 : SCRATCH1, SZ_D);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	544 if (!fake_read) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	545 out = push_r(out, SCRATCH1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	546 switch (inst->extra.size)
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	547 {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	548 case OPSIZE_BYTE:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	549 out = call(out, (char *)m68k_read_byte_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	550 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	551 case OPSIZE_WORD:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	552 out = call(out, (char *)m68k_read_word_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	553 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	554 case OPSIZE_LONG:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	555 out = call(out, (char *)m68k_read_long_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	556 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	557 }
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	558 out = pop_r(out, SCRATCH2);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	559 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	560 ea->mode = MODE_REG_DIRECT;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	561 ea->base = SCRATCH1;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	562 break;
98 104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	563 case MODE_PC_INDEX_DISP8:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	564 out = cycles(out, fake_read ? (6 + inst->extra.size == OPSIZE_LONG ? 8 : 4) : 6);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	565 out = mov_ir(out, inst->address+2, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	566 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	567 if (inst->dst.params.regs.sec & 1) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	568 if (inst->dst.params.regs.sec & 0x10) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	569 if (opts->aregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	570 out = add_rr(out, opts->aregs[sec_reg], SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	571 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	572 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	573 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	574 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	575 if (opts->dregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	576 out = add_rr(out, opts->dregs[sec_reg], SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	577 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	578 out = add_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	579 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	580 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	581 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	582 if (inst->dst.params.regs.sec & 0x10) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	583 if (opts->aregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	584 out = movsx_rr(out, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	585 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	586 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	587 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	588 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	589 if (opts->dregs[sec_reg] >= 0) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	590 out = movsx_rr(out, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	591 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	592 out = movsx_rdisp8r(out, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	593 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	594 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	595 out = add_rr(out, SCRATCH2, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	596 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	597 if (inst->dst.params.regs.displacement) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	598 out = add_ir(out, inst->dst.params.regs.displacement, SCRATCH1, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	599 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	600 if (fake_read) {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	601 out = mov_rr(out, SCRATCH1, SCRATCH2, SZ_D);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	602 } else {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	603 out = push_r(out, SCRATCH1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	604 switch (inst->extra.size)
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	605 {
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	606 case OPSIZE_BYTE:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	607 out = call(out, (char *)m68k_read_byte_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	608 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	609 case OPSIZE_WORD:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	610 out = call(out, (char *)m68k_read_word_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	611 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	612 case OPSIZE_LONG:
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	613 out = call(out, (char *)m68k_read_long_scratch1);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	614 break;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	615 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	616 out = pop_r(out, SCRATCH2);
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	617 }
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	618 ea->mode = MODE_REG_DIRECT;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	619 ea->base = SCRATCH1;
104e257fb93c Allow indexed modes to be used as a destination Mike Pavone <pavone@retrodev.com> parents: 97 diff changeset	620 break;
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	621 case MODE_ABSOLUTE:
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	622 case MODE_ABSOLUTE_SHORT:
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	623 //Add cycles for reading address from instruction stream
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	624 out = cycles(out, (inst->dst.addr_mode == MODE_ABSOLUTE ? BUS2 : BUS) + (fake_read ? (inst->extra.size == OPSIZE_LONG ? BUS2 : BUS) : 0));
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	625 out = mov_ir(out, inst->dst.params.immed, fake_read ? SCRATCH2 : SCRATCH1, SZ_D);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	626 if (!fake_read) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	627 out = push_r(out, SCRATCH1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	628 switch (inst->extra.size)
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	629 {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	630 case OPSIZE_BYTE:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	631 out = call(out, (char *)m68k_read_byte_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	632 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	633 case OPSIZE_WORD:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	634 out = call(out, (char *)m68k_read_word_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	635 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	636 case OPSIZE_LONG:
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	637 out = call(out, (char *)m68k_read_long_scratch1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	638 break;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	639 }
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	640 out = pop_r(out, SCRATCH2);
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	641 }
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	642 ea->mode = MODE_REG_DIRECT;
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	643 ea->base = SCRATCH1;
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	644 break;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	645 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	646 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	647 printf("%X: %s\naddress mode %d not implemented (dst)\n", inst->address, disasm_buf, inst->dst.addr_mode);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	648 exit(1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	649 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	650 return out;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	651 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	652
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	653 uint8_t * m68k_save_result(m68kinst * inst, uint8_t * out, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	654 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	655 if (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode != MODE_AREG) {
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	656 if (inst->dst.addr_mode == MODE_AREG_PREDEC && inst->src.addr_mode == MODE_AREG_PREDEC && inst->op != M68K_MOVE) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	657 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	658 out = mov_rr(out, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	659 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	660 out = mov_rdisp8r(out, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	661 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	662 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	663 switch (inst->extra.size)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	664 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	665 case OPSIZE_BYTE:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	666 out = call(out, (char *)m68k_write_byte);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	667 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	668 case OPSIZE_WORD:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	669 out = call(out, (char *)m68k_write_word);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	670 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	671 case OPSIZE_LONG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	672 out = call(out, (char *)m68k_write_long_lowfirst);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	673 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	674 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	675 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	676 return out;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	677 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	678
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	679 uint8_t * get_native_address(native_map_slot * native_code_map, uint32_t address)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	680 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	681 address &= 0xFFFFFF;
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	682 address /= 2;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	683 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	684 if (!native_code_map[chunk].base) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	685 return NULL;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	686 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	687 uint32_t offset = address % NATIVE_CHUNK_SIZE;
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	688 if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET \|\| native_code_map[chunk].offsets[offset] == EXTENSION_WORD) {
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	689 return NULL;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	690 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	691 return native_code_map[chunk].base + native_code_map[chunk].offsets[offset];
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	692 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	693
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	694 uint32_t get_instruction_start(native_map_slot * native_code_map, uint32_t address)
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	695 {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	696 address &= 0xFFFFFF;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	697 address /= 2;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	698 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	699 if (!native_code_map[chunk].base) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	700 return 0;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	701 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	702 uint32_t offset = address % NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	703 if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	704 return 0;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	705 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	706 while (native_code_map[chunk].offsets[offset] == EXTENSION_WORD) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	707 --address;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	708 chunk = address / NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	709 offset = address % NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	710 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	711 return address*2;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	712 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	713
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	714 deferred_addr * defer_address(deferred_addr * old_head, uint32_t address, uint8_t *dest)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	715 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	716 deferred_addr * new_head = malloc(sizeof(deferred_addr));
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	717 new_head->next = old_head;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	718 new_head->address = address & 0xFFFFFF;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	719 new_head->dest = dest;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	720 return new_head;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	721 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	722
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	723 void process_deferred(x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	724 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	725 deferred_addr * cur = opts->deferred;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	726 deferred_addr **last_next = &(opts->deferred);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	727 while(cur)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	728 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	729 uint8_t * native = get_native_address(opts->native_code_map, cur->address);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	730 if (native) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	731 int32_t disp = native - (cur->dest + 4);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	732 uint8_t * out = cur->dest;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	733 *(out++) = disp;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	734 disp >>= 8;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	735 *(out++) = disp;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	736 disp >>= 8;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	737 *(out++) = disp;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	738 disp >>= 8;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	739 *out = disp;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	740 *last_next = cur->next;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	741 free(cur);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	742 cur = *last_next;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	743 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	744 last_next = &(cur->next);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	745 cur = cur->next;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	746 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	747 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	748 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	749
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	750 void map_native_address(m68k_context * context, uint32_t address, uint8_t * native_addr, uint8_t size, uint8_t native_size)
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	751 {
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	752 native_map_slot * native_code_map = context->native_code_map;
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	753 x86_68k_options * opts = context->options;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	754 address &= 0xFFFFFF;
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	755 if (address > 0xE00000) {
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	756 context->ram_code_flags[(address & 0xC000) >> 14] \|= 1 << ((address & 0x3800) >> 11);
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	757 if (((address & 0x3FFF) + size) & 0xC000) {
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	758 context->ram_code_flags[((address+size) & 0xC000) >> 14] \|= 1 << (((address+size) & 0x3800) >> 11);
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	759 }
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	760 uint32_t slot = (address & 0xFFFF)/1024;
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	761 if (!opts->ram_inst_sizes[slot]) {
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	762 opts->ram_inst_sizes[slot] = malloc(sizeof(uint8_t) * 512);
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	763 }
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	764 opts->ram_inst_sizes[slot][((address & 0xFFFF)/2)%512] = native_size;
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	765 }
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	766 address/= 2;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	767 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	768 if (!native_code_map[chunk].base) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	769 native_code_map[chunk].base = native_addr;
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	770 native_code_map[chunk].offsets = malloc(sizeof(int32_t) * NATIVE_CHUNK_SIZE);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	771 memset(native_code_map[chunk].offsets, 0xFF, sizeof(int32_t) * NATIVE_CHUNK_SIZE);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	772 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	773 uint32_t offset = address % NATIVE_CHUNK_SIZE;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	774 native_code_map[chunk].offsets[offset] = native_addr-native_code_map[chunk].base;
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	775 for(address++,size-=2; size; address++,size-=2) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	776 chunk = address / NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	777 offset = address % NATIVE_CHUNK_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	778 if (!native_code_map[chunk].base) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	779 native_code_map[chunk].base = native_addr;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	780 native_code_map[chunk].offsets = malloc(sizeof(int32_t) * NATIVE_CHUNK_SIZE);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	781 memset(native_code_map[chunk].offsets, 0xFF, sizeof(int32_t) * NATIVE_CHUNK_SIZE);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	782 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	783 native_code_map[chunk].offsets[offset] = EXTENSION_WORD;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	784 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	785 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	786
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	787 uint8_t get_native_inst_size(x86_68k_options * opts, uint32_t address)
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	788 {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	789 if (address < 0xE00000) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	790 return 0;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	791 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	792 uint32_t slot = (address & 0xFFFF)/1024;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	793 return opts->ram_inst_sizes[slot][((address & 0xFFFF)/2)%512];
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	794 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	795
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	796 uint8_t * translate_m68k_move(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	797 {
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	798 int8_t reg, flags_reg, sec_reg;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	799 uint8_t dir = 0;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	800 int32_t offset;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	801 int32_t inc_amount, dec_amount;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	802 x86_ea src;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	803 dst = translate_m68k_src(inst, &src, dst, opts);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	804 reg = native_reg(&(inst->dst), opts);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	805 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	806 //update statically set flags
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	807 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	808 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	809 }
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	810
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	811 if (inst->dst.addr_mode != MODE_AREG) {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	812 if (src.mode == MODE_REG_DIRECT) {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	813 flags_reg = src.base;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	814 } else {
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	815 if (reg >= 0) {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	816 flags_reg = reg;
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	817 } else {
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	818 if(src.mode == MODE_REG_DISPLACE8) {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	819 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	820 } else {
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	821 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	822 }
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	823 src.mode = MODE_REG_DIRECT;
0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	824 flags_reg = src.base = SCRATCH1;
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	825 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	826 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	827 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	828 uint8_t size = inst->extra.size;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	829 switch(inst->dst.addr_mode)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	830 {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	831 case MODE_AREG:
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	832 size = OPSIZE_LONG;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	833 case MODE_REG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	834 if (reg >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	835 if (src.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	836 dst = mov_rr(dst, src.base, reg, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	837 } else if (src.mode == MODE_REG_DISPLACE8) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	838 dst = mov_rdisp8r(dst, src.base, src.disp, reg, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	839 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	840 dst = mov_ir(dst, src.disp, reg, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	841 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	842 } else if(src.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	843 dst = mov_rrdisp8(dst, src.base, CONTEXT, reg_offset(&(inst->dst)), size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	844 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	845 dst = mov_irdisp8(dst, src.disp, CONTEXT, reg_offset(&(inst->dst)), size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	846 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	847 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	848 dst = cmp_ir(dst, 0, flags_reg, size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	849 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	850 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	851 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	852 break;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	853 case MODE_AREG_PREDEC:
182 924af8b2f7a0 Fix -(a7) dest when size is byte Mike Pavone <pavone@retrodev.com> parents: 181 diff changeset	854 dec_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : (inst->dst.params.regs.pri == 7 ? 2 : 1));
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	855 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	856 dst = sub_ir(dst, dec_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	857 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	858 dst = sub_irdisp8(dst, dec_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	859 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	860 case MODE_AREG_INDIRECT:
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	861 case MODE_AREG_POSTINC:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	862 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	863 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	864 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	865 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	866 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	867 if (src.mode == MODE_REG_DIRECT) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	868 if (src.base != SCRATCH1) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	869 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	870 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	871 } else if (src.mode == MODE_REG_DISPLACE8) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	872 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	873 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	874 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	875 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	876 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	877 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	878 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	879 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	880 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	881 switch (inst->extra.size)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	882 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	883 case OPSIZE_BYTE:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	884 dst = call(dst, (char *)m68k_write_byte);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	885 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	886 case OPSIZE_WORD:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	887 dst = call(dst, (char *)m68k_write_word);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	888 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	889 case OPSIZE_LONG:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	890 dst = call(dst, (char *)m68k_write_long_highfirst);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	891 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	892 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	893 if (inst->dst.addr_mode == MODE_AREG_POSTINC) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	894 inc_amount = inst->extra.size == OPSIZE_WORD ? 2 : (inst->extra.size == OPSIZE_LONG ? 4 : 1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	895 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	896 dst = add_ir(dst, inc_amount, opts->aregs[inst->dst.params.regs.pri], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	897 } else {
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	898 dst = add_irdisp8(dst, inc_amount, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	899 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	900 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	901 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	902 case MODE_AREG_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	903 dst = cycles(dst, BUS);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	904 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	905 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	906 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	907 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	908 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	909 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	910 if (src.mode == MODE_REG_DIRECT) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	911 if (src.base != SCRATCH1) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	912 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	913 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	914 } else if (src.mode == MODE_REG_DISPLACE8) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	915 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	916 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	917 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	918 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	919 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	920 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	921 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	922 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	923 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	924 switch (inst->extra.size)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	925 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	926 case OPSIZE_BYTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	927 dst = call(dst, (char *)m68k_write_byte);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	928 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	929 case OPSIZE_WORD:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	930 dst = call(dst, (char *)m68k_write_word);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	931 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	932 case OPSIZE_LONG:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	933 dst = call(dst, (char *)m68k_write_long_highfirst);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	934 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	935 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	936 break;
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	937 case MODE_AREG_INDEX_DISP8:
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	938 dst = cycles(dst, 6);//TODO: Check to make sure this is correct
107 9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	939 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	940 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	941 } else {
107 9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	942 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	943 }
107 9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	944 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	945 if (inst->dst.params.regs.sec & 1) {
9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	946 if (inst->dst.params.regs.sec & 0x10) {
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	947 if (opts->aregs[sec_reg] >= 0) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	948 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	949 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	950 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	951 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	952 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	953 if (opts->dregs[sec_reg] >= 0) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	954 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	955 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	956 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	957 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	958 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	959 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	960 if (src.base == SCRATCH1) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	961 dst = push_r(dst, SCRATCH1);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	962 }
107 9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	963 if (inst->dst.params.regs.sec & 0x10) {
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	964 if (opts->aregs[sec_reg] >= 0) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	965 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	966 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	967 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	968 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	969 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	970 if (opts->dregs[sec_reg] >= 0) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	971 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	972 } else {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	973 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	974 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	975 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	976 dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	977 if (src.base == SCRATCH1) {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	978 dst = pop_r(dst, SCRATCH1);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	979 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	980 }
107 9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	981 if (inst->dst.params.regs.displacement) {
9705075fcf36 Fix areg indexed mode for move dst Mike Pavone <pavone@retrodev.com> parents: 106 diff changeset	982 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	983 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	984 if (src.mode == MODE_REG_DIRECT) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	985 if (src.base != SCRATCH1) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	986 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	987 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	988 } else if (src.mode == MODE_REG_DISPLACE8) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	989 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	990 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	991 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	992 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	993 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	994 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	995 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	996 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	997 }
99 8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	998 switch (inst->extra.size)
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	999 {
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1000 case OPSIZE_BYTE:
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1001 dst = call(dst, (char *)m68k_write_byte);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1002 break;
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1003 case OPSIZE_WORD:
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1004 dst = call(dst, (char *)m68k_write_word);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1005 break;
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1006 case OPSIZE_LONG:
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1007 dst = call(dst, (char *)m68k_write_long_highfirst);
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1008 break;
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1009 }
8491de5d6c06 Allow use of indexed modes as move dst Mike Pavone <pavone@retrodev.com> parents: 98 diff changeset	1010 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1011 case MODE_PC_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1012 dst = cycles(dst, BUS);
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1013 dst = mov_ir(dst, inst->dst.params.regs.displacement + inst->address+2, SCRATCH2, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1014 if (src.mode == MODE_REG_DIRECT) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1015 if (src.base != SCRATCH1) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1016 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1017 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1018 } else if (src.mode == MODE_REG_DISPLACE8) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1019 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1020 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1021 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1022 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1023 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1024 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1025 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1026 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1027 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1028 switch (inst->extra.size)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1029 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1030 case OPSIZE_BYTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1031 dst = call(dst, (char *)m68k_write_byte);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1032 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1033 case OPSIZE_WORD:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1034 dst = call(dst, (char *)m68k_write_word);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1035 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1036 case OPSIZE_LONG:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1037 dst = call(dst, (char *)m68k_write_long_highfirst);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1038 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1039 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1040 break;
196 f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1041 case MODE_PC_INDEX_DISP8:
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1042 dst = cycles(dst, 6);//TODO: Check to make sure this is correct
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1043 dst = mov_ir(dst, inst->address, SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1044 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1045 if (inst->dst.params.regs.sec & 1) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1046 if (inst->dst.params.regs.sec & 0x10) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1047 if (opts->aregs[sec_reg] >= 0) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1048 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1049 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1050 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1051 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1052 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1053 if (opts->dregs[sec_reg] >= 0) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1054 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1055 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1056 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1057 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1058 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1059 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1060 if (src.base == SCRATCH1) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1061 dst = push_r(dst, SCRATCH1);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1062 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1063 if (inst->dst.params.regs.sec & 0x10) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1064 if (opts->aregs[sec_reg] >= 0) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1065 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1066 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1067 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1068 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1069 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1070 if (opts->dregs[sec_reg] >= 0) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1071 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1072 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1073 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1074 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1075 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1076 dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1077 if (src.base == SCRATCH1) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1078 dst = pop_r(dst, SCRATCH1);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1079 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1080 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1081 if (inst->dst.params.regs.displacement) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1082 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1083 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1084 if (src.mode == MODE_REG_DIRECT) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1085 if (src.base != SCRATCH1) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1086 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1087 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1088 } else if (src.mode == MODE_REG_DISPLACE8) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1089 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1090 } else {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1091 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1092 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1093 if (inst->dst.addr_mode != MODE_AREG) {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1094 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1095 dst = setcc_r(dst, CC_Z, FLAG_Z);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1096 dst = setcc_r(dst, CC_S, FLAG_N);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1097 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1098 switch (inst->extra.size)
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1099 {
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1100 case OPSIZE_BYTE:
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1101 dst = call(dst, (char *)m68k_write_byte);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1102 break;
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1103 case OPSIZE_WORD:
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1104 dst = call(dst, (char *)m68k_write_word);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1105 break;
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1106 case OPSIZE_LONG:
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1107 dst = call(dst, (char *)m68k_write_long_highfirst);
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1108 break;
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1109 }
f8955d33486d Implement pc indexed mode as move dst Mike Pavone <pavone@retrodev.com> parents: 194 diff changeset	1110 break;
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1111 case MODE_ABSOLUTE:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1112 case MODE_ABSOLUTE_SHORT:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1113 if (src.mode == MODE_REG_DIRECT) {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1114 if (src.base != SCRATCH1) {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1115 dst = mov_rr(dst, src.base, SCRATCH1, inst->extra.size);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1116 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1117 } else if (src.mode == MODE_REG_DISPLACE8) {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1118 dst = mov_rdisp8r(dst, src.base, src.disp, SCRATCH1, inst->extra.size);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1119 } else {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1120 dst = mov_ir(dst, src.disp, SCRATCH1, inst->extra.size);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1121 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1122 if (inst->dst.addr_mode == MODE_ABSOLUTE) {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1123 dst = cycles(dst, BUS*2);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1124 } else {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1125 dst = cycles(dst, BUS);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1126 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1127 dst = mov_ir(dst, inst->dst.params.immed, SCRATCH2, SZ_D);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1128 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1129 dst = cmp_ir(dst, 0, flags_reg, inst->extra.size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1130 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1131 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	1132 }
54 3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1133 switch (inst->extra.size)
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1134 {
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1135 case OPSIZE_BYTE:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1136 dst = call(dst, (char *)m68k_write_byte);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1137 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1138 case OPSIZE_WORD:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1139 dst = call(dst, (char *)m68k_write_word);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1140 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1141 case OPSIZE_LONG:
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1142 dst = call(dst, (char *)m68k_write_long_highfirst);
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1143 break;
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1144 }
3b79cbcf6846 Get Flavio's color bar demo kind of sort of working Mike Pavone <pavone@retrodev.com> parents: 53 diff changeset	1145 break;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1146 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	1147 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1148 printf("%X: %s\naddress mode %d not implemented (move dst)\n", inst->address, disasm_buf, inst->dst.addr_mode);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1149 exit(1);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	1150 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1151
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1152 //add cycles for prefetch
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1153 dst = cycles(dst, BUS);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1154 return dst;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1155 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1156
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1157 uint8_t * translate_m68k_movem(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1158 {
161 6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1159 int8_t bit,reg,sec_reg;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1160 uint8_t early_cycles;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1161 if(inst->src.addr_mode == MODE_REG) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1162 //reg to mem
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1163 early_cycles = 8;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1164 int8_t dir;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1165 switch (inst->dst.addr_mode)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1166 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1167 case MODE_AREG_INDIRECT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1168 case MODE_AREG_PREDEC:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1169 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1170 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1171 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1172 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1173 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1174 break;
161 6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1175 case MODE_AREG_DISPLACE:
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1176 early_cycles += BUS;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1177 reg = SCRATCH2;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1178 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1179 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1180 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1181 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1182 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1183 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1184 break;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1185 case MODE_AREG_INDEX_DISP8:
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1186 early_cycles += 6;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1187 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1188 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1189 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1190 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1191 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1192 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1193 if (inst->dst.params.regs.sec & 1) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1194 if (inst->dst.params.regs.sec & 0x10) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1195 if (opts->aregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1196 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1197 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1198 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1199 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1200 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1201 if (opts->dregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1202 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1203 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1204 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1205 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1206 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1207 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1208 if (inst->dst.params.regs.sec & 0x10) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1209 if (opts->aregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1210 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1211 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1212 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1213 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1214 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1215 if (opts->dregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1216 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1217 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1218 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1219 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1220 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1221 dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1222 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1223 if (inst->dst.params.regs.displacement) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1224 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1225 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1226 break;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1227 case MODE_PC_DISPLACE:
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1228 early_cycles += BUS;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1229 dst = mov_ir(dst, inst->dst.params.regs.displacement + inst->address+2, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1230 break;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1231 case MODE_PC_INDEX_DISP8:
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1232 early_cycles += 6;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1233 dst = mov_ir(dst, inst->address+2, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1234 sec_reg = (inst->dst.params.regs.sec >> 1) & 0x7;
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1235 if (inst->dst.params.regs.sec & 1) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1236 if (inst->dst.params.regs.sec & 0x10) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1237 if (opts->aregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1238 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1239 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1240 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1241 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1242 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1243 if (opts->dregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1244 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1245 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1246 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1247 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1248 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1249 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1250 if (inst->dst.params.regs.sec & 0x10) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1251 if (opts->aregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1252 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1253 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1254 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1255 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1256 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1257 if (opts->dregs[sec_reg] >= 0) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1258 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1259 } else {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1260 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1261 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1262 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1263 dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1264 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1265 if (inst->dst.params.regs.displacement) {
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1266 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1267 }
6748022656b7 Implement more address modes for movem dst and fix a missing break statement in translate_m68k_dst Mike Pavone <pavone@retrodev.com> parents: 159 diff changeset	1268 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1269 case MODE_ABSOLUTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1270 early_cycles += 4;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1271 case MODE_ABSOLUTE_SHORT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1272 early_cycles += 4;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1273 dst = mov_ir(dst, inst->dst.params.immed, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1274 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1275 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	1276 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1277 printf("%X: %s\naddress mode %d not implemented (movem dst)\n", inst->address, disasm_buf, inst->dst.addr_mode);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1278 exit(1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1279 }
210 4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1280 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1281 reg = 15;
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1282 dir = -1;
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1283 } else {
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1284 reg = 0;
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1285 dir = 1;
4beaad3a9a50 Fix movem reg to mem for certain addressing modes Mike Pavone <pavone@retrodev.com> parents: 209 diff changeset	1286 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1287 dst = cycles(dst, early_cycles);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1288 for(bit=0; reg < 16 && reg >= 0; reg += dir, bit++) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1289 if (inst->src.params.immed & (1 << bit)) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1290 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1291 dst = sub_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1292 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1293 dst = push_r(dst, SCRATCH2);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1294 if (reg > 7) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1295 if (opts->aregs[reg-8] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1296 dst = mov_rr(dst, opts->aregs[reg-8], SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1297 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1298 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * (reg-8), SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1299 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1300 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1301 if (opts->dregs[reg] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1302 dst = mov_rr(dst, opts->dregs[reg], SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1303 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1304 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t) * (reg), SCRATCH1, inst->extra.size);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1305 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1306 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1307 if (inst->extra.size == OPSIZE_LONG) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1308 dst = call(dst, (uint8_t *)m68k_write_long_lowfirst);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1309 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1310 dst = call(dst, (uint8_t *)m68k_write_word);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1311 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1312 dst = pop_r(dst, SCRATCH2);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1313 if (inst->dst.addr_mode != MODE_AREG_PREDEC) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1314 dst = add_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1315 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1316 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1317 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1318 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1319 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1320 dst = mov_rr(dst, SCRATCH2, opts->aregs[inst->dst.params.regs.pri], SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1321 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1322 dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1323 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1324 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1325 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1326 //mem to reg
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1327 early_cycles = 4;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1328 switch (inst->src.addr_mode)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1329 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1330 case MODE_AREG_INDIRECT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1331 case MODE_AREG_POSTINC:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1332 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1333 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1334 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1335 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1336 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1337 break;
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1338 case MODE_AREG_DISPLACE:
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1339 early_cycles += BUS;
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1340 reg = SCRATCH2;
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1341 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1342 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1343 } else {
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1344 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1345 }
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1346 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1347 break;
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1348 case MODE_AREG_INDEX_DISP8:
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1349 early_cycles += 6;
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1350 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1351 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1352 } else {
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1353 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1354 }
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1355 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1356 if (inst->src.params.regs.sec & 1) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1357 if (inst->src.params.regs.sec & 0x10) {
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1358 if (opts->aregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1359 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1360 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1361 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1362 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1363 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1364 if (opts->dregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1365 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1366 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1367 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1368 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1369 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1370 } else {
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1371 if (inst->src.params.regs.sec & 0x10) {
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1372 if (opts->aregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1373 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1374 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1375 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1376 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1377 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1378 if (opts->dregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1379 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1380 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1381 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1382 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1383 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1384 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1385 }
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1386 if (inst->src.params.regs.displacement) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1387 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1388 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1389 break;
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1390 case MODE_PC_DISPLACE:
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1391 early_cycles += BUS;
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1392 dst = mov_ir(dst, inst->src.params.regs.displacement + inst->address+2, SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1393 break;
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1394 case MODE_PC_INDEX_DISP8:
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1395 early_cycles += 6;
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1396 dst = mov_ir(dst, inst->address+2, SCRATCH1, SZ_D);
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1397 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1398 if (inst->src.params.regs.sec & 1) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1399 if (inst->src.params.regs.sec & 0x10) {
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1400 if (opts->aregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1401 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1402 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1403 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1404 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1405 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1406 if (opts->dregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1407 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1408 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1409 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1410 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1411 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1412 } else {
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1413 if (inst->src.params.regs.sec & 0x10) {
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1414 if (opts->aregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1415 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1416 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1417 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1418 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1419 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1420 if (opts->dregs[sec_reg] >= 0) {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1421 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1422 } else {
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1423 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1424 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1425 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1426 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1427 }
169 c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1428 if (inst->src.params.regs.displacement) {
c07713463c91 Fix a bunch of addressing modes in movem when a register list is the destination Mike Pavone <pavone@retrodev.com> parents: 168 diff changeset	1429 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
162 eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1430 }
eba78ad49a11 Implement more movem modes src Mike Pavone <pavone@retrodev.com> parents: 161 diff changeset	1431 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1432 case MODE_ABSOLUTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1433 early_cycles += 4;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1434 case MODE_ABSOLUTE_SHORT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1435 early_cycles += 4;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1436 dst = mov_ir(dst, inst->src.params.immed, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1437 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1438 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	1439 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1440 printf("%X: %s\naddress mode %d not implemented (movem src)\n", inst->address, disasm_buf, inst->src.addr_mode);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1441 exit(1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1442 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1443 dst = cycles(dst, early_cycles);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1444 for(reg = 0; reg < 16; reg ++) {
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1445 if (inst->dst.params.immed & (1 << reg)) {
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1446 dst = push_r(dst, SCRATCH1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1447 if (inst->extra.size == OPSIZE_LONG) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1448 dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1449 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1450 dst = call(dst, (uint8_t *)m68k_read_word_scratch1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1451 }
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1452 if (inst->extra.size == OPSIZE_WORD) {
062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1453 dst = movsx_rr(dst, SCRATCH1, SCRATCH1, SZ_W, SZ_D);
062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1454 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1455 if (reg > 7) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1456 if (opts->aregs[reg-8] >= 0) {
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1457 dst = mov_rr(dst, SCRATCH1, opts->aregs[reg-8], SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1458 } else {
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1459 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * (reg-8), SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1460 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1461 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1462 if (opts->dregs[reg] >= 0) {
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1463 dst = mov_rr(dst, SCRATCH1, opts->dregs[reg], SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1464 } else {
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	1465 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t) * (reg), SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1466 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1467 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1468 dst = pop_r(dst, SCRATCH1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1469 dst = add_ir(dst, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1470 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1471 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1472 if (inst->src.addr_mode == MODE_AREG_POSTINC) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1473 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1474 dst = mov_rr(dst, SCRATCH1, opts->aregs[inst->src.params.regs.pri], SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1475 } else {
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1476 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->src)), SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1477 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1478 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1479 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1480 //prefetch
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1481 dst = cycles(dst, 4);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1482 return dst;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1483 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1484
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1485 uint8_t * translate_m68k_clr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1486 {
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1487 dst = mov_ir(dst, 0, FLAG_N, SZ_B);
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1488 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1489 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1490 dst = mov_ir(dst, 1, FLAG_Z, SZ_B);
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1491 int8_t reg = native_reg(&(inst->dst), opts);
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1492 if (reg >= 0) {
64 2b1a65f4b85d Cleanup 68K timing code. Temporarily omment out fFPS counter as it was causing segfaults Mike Pavone <pavone@retrodev.com> parents: 61 diff changeset	1493 dst = cycles(dst, (inst->extra.size == OPSIZE_LONG ? 6 : 4));
2b1a65f4b85d Cleanup 68K timing code. Temporarily omment out fFPS counter as it was causing segfaults Mike Pavone <pavone@retrodev.com> parents: 61 diff changeset	1494 return xor_rr(dst, reg, reg, inst->extra.size);
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1495 }
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1496 x86_ea dst_op;
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1497 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 1);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1498 if (dst_op.mode == MODE_REG_DIRECT) {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1499 dst = xor_rr(dst, dst_op.base, dst_op.base, inst->extra.size);
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1500 } else {
c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1501 dst = mov_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1502 }
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	1503 dst = m68k_save_result(inst, dst, opts);
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1504 return dst;
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1505 }
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	1506
93 f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1507 uint8_t * translate_m68k_ext(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1508 {
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1509 x86_ea dst_op;
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1510 uint8_t dst_size = inst->extra.size;
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1511 inst->extra.size--;
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1512 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1513 if (dst_op.mode == MODE_REG_DIRECT) {
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1514 dst = movsx_rr(dst, dst_op.base, dst_op.base, inst->extra.size, dst_size);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1515 dst = cmp_ir(dst, 0, dst_op.base, dst_size);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1516 } else {
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1517 dst = movsx_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH1, inst->extra.size, dst_size);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1518 dst = cmp_ir(dst, 0, SCRATCH1, dst_size);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1519 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, dst_size);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1520 }
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1521 inst->extra.size = dst_size;
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1522 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1523 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1524 dst = setcc_r(dst, CC_Z, FLAG_Z);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1525 dst = setcc_r(dst, CC_S, FLAG_N);
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1526 //M68K EXT only operates on registers so no need for a call to save result here
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1527 return dst;
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1528 }
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	1529
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1530 uint8_t * translate_m68k_lea(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1531 {
100 45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1532 int8_t dst_reg = native_reg(&(inst->dst), opts), sec_reg;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1533 switch(inst->src.addr_mode)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1534 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1535 case MODE_AREG_INDIRECT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1536 dst = cycles(dst, BUS);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1537 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1538 if (dst_reg >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1539 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], dst_reg, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1540 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1541 dst = mov_rrdisp8(dst, opts->aregs[inst->src.params.regs.pri], CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1542 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1543 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1544 if (dst_reg >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1545 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, dst_reg, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1546 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1547 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1548 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1549 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1550 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1551 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1552 case MODE_AREG_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1553 dst = cycles(dst, 8);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1554 if (dst_reg >= 0) {
168 7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1555 if (inst->src.params.regs.pri != inst->dst.params.regs.pri) {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1556 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1557 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], dst_reg, SZ_D);
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1558 } else {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1559 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), dst_reg, SZ_D);
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1560 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1561 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1562 dst = add_ir(dst, inst->src.params.regs.displacement, dst_reg, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1563 } else {
168 7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1564 if (inst->src.params.regs.pri != inst->dst.params.regs.pri) {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1565 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1566 dst = mov_rrdisp8(dst, opts->aregs[inst->src.params.regs.pri], CONTEXT, reg_offset(&(inst->dst)), SZ_D);
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1567 } else {
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1568 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1569 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1570 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1571 }
165 62b152811bae Fix certain address modes with lea when the destination is not a native register Mike Pavone <pavone@retrodev.com> parents: 162 diff changeset	1572 dst = add_irdisp8(dst, inst->src.params.regs.displacement, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1573 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1574 break;
100 45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1575 case MODE_AREG_INDEX_DISP8:
168 7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1576 dst = cycles(dst, 12);
100 45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1577 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1578 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1579 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1580 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1581 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1582 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1583 if (inst->src.params.regs.sec & 1) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1584 if (inst->src.params.regs.sec & 0x10) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1585 if (opts->aregs[sec_reg] >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1586 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1587 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1588 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1589 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1590 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1591 if (opts->dregs[sec_reg] >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1592 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1593 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1594 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1595 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1596 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1597 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1598 if (inst->src.params.regs.sec & 0x10) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1599 if (opts->aregs[sec_reg] >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1600 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1601 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1602 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1603 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1604 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1605 if (opts->dregs[sec_reg] >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1606 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_W, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1607 } else {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1608 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_W, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1609 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1610 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1611 dst = add_rr(dst, SCRATCH1, SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1612 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1613 if (inst->src.params.regs.displacement) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1614 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH2, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1615 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1616 if (dst_reg >= 0) {
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1617 dst = mov_rr(dst, SCRATCH2, dst_reg, SZ_D);
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1618 } else {
165 62b152811bae Fix certain address modes with lea when the destination is not a native register Mike Pavone <pavone@retrodev.com> parents: 162 diff changeset	1619 dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
100 45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1620 }
45cd7d3e7918 Implement areg indexed mode for lea Mike Pavone <pavone@retrodev.com> parents: 99 diff changeset	1621 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1622 case MODE_PC_DISPLACE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1623 dst = cycles(dst, 8);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1624 if (dst_reg >= 0) {
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1625 dst = mov_ir(dst, inst->src.params.regs.displacement + inst->address+2, dst_reg, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1626 } else {
74 6396dc91f61e Fix some bugs in movem with a register list destination Mike Pavone <pavone@retrodev.com> parents: 73 diff changeset	1627 dst = mov_irdisp8(dst, inst->src.params.regs.displacement + inst->address+2, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.params.regs.pri, SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1628 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1629 break;
133 c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1630 case MODE_PC_INDEX_DISP8:
168 7b099f2b382b Minor optimization and a cycle count fix to lea Mike Pavone <pavone@retrodev.com> parents: 167 diff changeset	1631 dst = cycles(dst, BUS*3);
133 c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1632 dst = mov_ir(dst, inst->address+2, SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1633 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1634 if (inst->src.params.regs.sec & 1) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1635 if (inst->src.params.regs.sec & 0x10) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1636 if (opts->aregs[sec_reg] >= 0) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1637 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1638 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1639 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1640 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1641 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1642 if (opts->dregs[sec_reg] >= 0) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1643 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1644 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1645 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1646 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1647 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1648 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1649 if (inst->src.params.regs.sec & 0x10) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1650 if (opts->aregs[sec_reg] >= 0) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1651 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1652 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1653 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1654 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1655 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1656 if (opts->dregs[sec_reg] >= 0) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1657 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1658 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1659 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1660 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1661 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1662 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1663 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1664 if (inst->src.params.regs.displacement) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1665 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1666 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1667 if (dst_reg >= 0) {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1668 dst = mov_rr(dst, SCRATCH1, dst_reg, SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1669 } else {
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1670 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1671 }
c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1672 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1673 case MODE_ABSOLUTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1674 case MODE_ABSOLUTE_SHORT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1675 dst = cycles(dst, (inst->src.addr_mode == MODE_ABSOLUTE) ? BUS * 3 : BUS * 2);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1676 if (dst_reg >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1677 dst = mov_ir(dst, inst->src.params.immed, dst_reg, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1678 } else {
133 c4d10c2aaee2 Add support for pc indexed addressing mode to lea Mike Pavone <pavone@retrodev.com> parents: 132 diff changeset	1679 dst = mov_irdisp8(dst, inst->src.params.immed, CONTEXT, reg_offset(&(inst->dst)), SZ_D);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1680 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1681 break;
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1682 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	1683 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1684 printf("%X: %s\naddress mode %d not implemented (lea src)\n", inst->address, disasm_buf, inst->src.addr_mode);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1685 exit(1);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1686 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1687 return dst;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1688 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1689
116 9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1690 uint8_t * translate_m68k_pea(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1691 {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1692 uint8_t sec_reg;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1693 switch(inst->src.addr_mode)
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1694 {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1695 case MODE_AREG_INDIRECT:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1696 dst = cycles(dst, BUS);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1697 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1698 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1699 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1700 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1701 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1702 break;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1703 case MODE_AREG_DISPLACE:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1704 dst = cycles(dst, 8);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1705 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1706 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1707 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1708 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1709 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1710 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1711 break;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1712 case MODE_AREG_INDEX_DISP8:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1713 dst = cycles(dst, 6);//TODO: Check to make sure this is correct
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1714 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1715 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1716 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1717 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1718 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1719 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1720 if (inst->src.params.regs.sec & 1) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1721 if (inst->src.params.regs.sec & 0x10) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1722 if (opts->aregs[sec_reg] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1723 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1724 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1725 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1726 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1727 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1728 if (opts->dregs[sec_reg] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1729 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1730 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1731 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1732 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1733 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1734 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1735 if (inst->src.params.regs.sec & 0x10) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1736 if (opts->aregs[sec_reg] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1737 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1738 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1739 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1740 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1741 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1742 if (opts->dregs[sec_reg] >= 0) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1743 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1744 } else {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1745 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1746 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1747 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1748 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1749 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1750 if (inst->src.params.regs.displacement) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1751 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1752 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1753 break;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1754 case MODE_PC_DISPLACE:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1755 dst = cycles(dst, 8);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1756 dst = mov_ir(dst, inst->src.params.regs.displacement + inst->address+2, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1757 break;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1758 case MODE_ABSOLUTE:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1759 case MODE_ABSOLUTE_SHORT:
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1760 dst = cycles(dst, (inst->src.addr_mode == MODE_ABSOLUTE) ? BUS * 3 : BUS * 2);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1761 dst = mov_ir(dst, inst->src.params.immed, SCRATCH1, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1762 break;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1763 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	1764 m68k_disasm(inst, disasm_buf);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1765 printf("%X: %s\naddress mode %d not implemented (lea src)\n", inst->address, disasm_buf, inst->src.addr_mode);
116 9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1766 exit(1);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1767 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1768 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1769 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1770 dst = call(dst, (uint8_t *)m68k_write_long_lowfirst);
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1771 return dst;
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1772 }
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	1773
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1774 uint8_t * translate_m68k_bsr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1775 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1776 int32_t disp = inst->src.params.immed;
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1777 uint32_t after = inst->address + (inst->variant == VAR_BYTE ? 2 : 4);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	1778 //TODO: Add cycles in the right place relative to pushing the return address on the stack
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	1779 dst = cycles(dst, 10);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1780 dst = mov_ir(dst, after, SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1781 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1782 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1783 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1784 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1785 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1786 dst = call(dst, (char *)m68k_write_long_highfirst);
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1787 uint8_t * dest_addr = get_native_address(opts->native_code_map, (inst->address+2) + disp);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1788 if (!dest_addr) {
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	1789 opts->deferred = defer_address(opts->deferred, (inst->address+2) + disp, dst + 1);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1790 //dummy address to be replaced later
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1791 dest_addr = dst + 256;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1792 }
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1793 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1794 dst = call(dst, (char *)dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1795 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1796 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1797 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1798 dst = jmp(dst, (char *)dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	1799 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1800 return dst;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1801 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1802
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1803 uint8_t * translate_m68k_bcc(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1804 {
156 3900cfde9dbb Add cycles for Bcc (needs work, but this changes keeps some ROMs from making the emulator unresponsive) Mike Pavone <pavone@retrodev.com> parents: 155 diff changeset	1805 dst = cycles(dst, 10);//TODO: Adjust this for branch not taken case
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1806 int32_t disp = inst->src.params.immed;
46 f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	1807 uint32_t after = inst->address + 2;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1808 uint8_t * dest_addr = get_native_address(opts->native_code_map, after + disp);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1809 if (inst->extra.cond == COND_TRUE) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1810 if (!dest_addr) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1811 opts->deferred = defer_address(opts->deferred, after + disp, dst + 1);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1812 //dummy address to be replaced later, make sure it generates a 4-byte displacement
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1813 dest_addr = dst + 256;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1814 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1815 dst = jmp(dst, dest_addr);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1816 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1817 uint8_t cond = CC_NZ;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1818 switch (inst->extra.cond)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1819 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1820 case COND_HIGH:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1821 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1822 case COND_LOW_SAME:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1823 dst = mov_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1824 dst = or_rr(dst, FLAG_C, SCRATCH1, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1825 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1826 case COND_CARRY_CLR:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1827 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1828 case COND_CARRY_SET:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1829 dst = cmp_ir(dst, 0, FLAG_C, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1830 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1831 case COND_NOT_EQ:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1832 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1833 case COND_EQ:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1834 dst = cmp_ir(dst, 0, FLAG_Z, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1835 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1836 case COND_OVERF_CLR:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1837 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1838 case COND_OVERF_SET:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1839 dst = cmp_ir(dst, 0, FLAG_V, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1840 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1841 case COND_PLUS:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1842 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1843 case COND_MINUS:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1844 dst = cmp_ir(dst, 0, FLAG_N, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1845 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1846 case COND_GREATER_EQ:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1847 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1848 case COND_LESS:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1849 dst = cmp_rr(dst, FLAG_N, FLAG_V, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1850 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1851 case COND_GREATER:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1852 cond = CC_Z;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1853 case COND_LESS_EQ:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1854 dst = mov_rr(dst, FLAG_V, SCRATCH1, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1855 dst = xor_rr(dst, FLAG_N, SCRATCH1, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1856 dst = or_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1857 break;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1858 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1859 if (!dest_addr) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1860 opts->deferred = defer_address(opts->deferred, after + disp, dst + 2);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1861 //dummy address to be replaced later, make sure it generates a 4-byte displacement
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1862 dest_addr = dst + 256;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1863 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1864 dst = jcc(dst, cond, dest_addr);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1865 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1866 return dst;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1867 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	1868
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1869 uint8_t * translate_m68k_scc(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1870 {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1871 uint8_t cond = inst->extra.cond;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1872 x86_ea dst_op;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1873 inst->extra.size = OPSIZE_BYTE;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1874 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 1);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1875 if (cond == COND_TRUE \|\| cond == COND_FALSE) {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1876 if ((inst->dst.addr_mode == MODE_REG \|\| inst->dst.addr_mode == MODE_AREG) && inst->extra.cond == COND_TRUE) {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1877 dst = cycles(dst, 6);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1878 } else {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1879 dst = cycles(dst, BUS);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1880 }
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1881 if (dst_op.mode == MODE_REG_DIRECT) {
179 68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1882 dst = mov_ir(dst, cond == COND_TRUE ? 0xFF : 0, dst_op.base, SZ_B);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1883 } else {
179 68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1884 dst = mov_irdisp8(dst, cond == COND_TRUE ? 0xFF : 0, dst_op.base, dst_op.disp, SZ_B);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1885 }
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1886 } else {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1887 uint8_t cc = CC_NZ;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1888 switch (cond)
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1889 {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1890 case COND_HIGH:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1891 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1892 case COND_LOW_SAME:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1893 dst = mov_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1894 dst = or_rr(dst, FLAG_C, SCRATCH1, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1895 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1896 case COND_CARRY_CLR:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1897 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1898 case COND_CARRY_SET:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1899 dst = cmp_ir(dst, 0, FLAG_C, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1900 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1901 case COND_NOT_EQ:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1902 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1903 case COND_EQ:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1904 dst = cmp_ir(dst, 0, FLAG_Z, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1905 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1906 case COND_OVERF_CLR:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1907 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1908 case COND_OVERF_SET:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1909 dst = cmp_ir(dst, 0, FLAG_V, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1910 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1911 case COND_PLUS:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1912 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1913 case COND_MINUS:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1914 dst = cmp_ir(dst, 0, FLAG_N, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1915 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1916 case COND_GREATER_EQ:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1917 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1918 case COND_LESS:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1919 dst = cmp_rr(dst, FLAG_N, FLAG_V, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1920 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1921 case COND_GREATER:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1922 cc = CC_Z;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1923 case COND_LESS_EQ:
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1924 dst = mov_rr(dst, FLAG_V, SCRATCH1, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1925 dst = xor_rr(dst, FLAG_N, SCRATCH1, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1926 dst = or_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1927 break;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1928 }
179 68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1929 uint8_t *true_off = dst + 1;
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1930 dst = jcc(dst, cc, dst+2);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1931 dst = cycles(dst, BUS);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1932 if (dst_op.mode == MODE_REG_DIRECT) {
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1933 dst = mov_ir(dst, 0, dst_op.base, SZ_B);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1934 } else {
179 68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1935 dst = mov_irdisp8(dst, 0, dst_op.base, dst_op.disp, SZ_B);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1936 }
179 68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1937 uint8_t *end_off = dst+1;
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1938 dst = jmp(dst, dst+2);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1939 *true_off = dst - (true_off+1);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1940 dst = cycles(dst, 6);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1941 if (dst_op.mode == MODE_REG_DIRECT) {
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1942 dst = mov_ir(dst, 0xFF, dst_op.base, SZ_B);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1943 } else {
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1944 dst = mov_irdisp8(dst, 0xFF, dst_op.base, dst_op.disp, SZ_B);
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1945 }
68af8a56ab7a Fix scc to set reg to 0xFF rather than 1 when the condition is true Mike Pavone <pavone@retrodev.com> parents: 178 diff changeset	1946 *end_off = dst - (end_off+1);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1947 }
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1948 dst = m68k_save_result(inst, dst, opts);
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1949 return dst;
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1950 }
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	1951
53 44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	1952 uint8_t * translate_m68k_jmp(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	1953 {
132 0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1954 uint8_t * dest_addr, sec_reg;
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	1955 uint32_t m68k_addr;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1956 switch(inst->src.addr_mode)
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1957 {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1958 case MODE_AREG_INDIRECT:
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	1959 dst = cycles(dst, BUS*2);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1960 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1961 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1962 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1963 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1964 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	1965 dst = call(dst, (uint8_t *)m68k_native_addr);
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	1966 dst = jmp_r(dst, SCRATCH1);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	1967 break;
132 0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1968 case MODE_AREG_INDEX_DISP8:
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1969 dst = cycles(dst, BUS*3);//TODO: CHeck that this is correct
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1970 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1971 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1972 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1973 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1974 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1975 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1976 if (inst->src.params.regs.sec & 1) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1977 if (inst->src.params.regs.sec & 0x10) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1978 if (opts->aregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1979 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1980 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1981 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1982 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1983 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1984 if (opts->dregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1985 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1986 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1987 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1988 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1989 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1990 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1991 if (inst->src.params.regs.sec & 0x10) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1992 if (opts->aregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1993 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1994 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1995 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1996 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1997 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1998 if (opts->dregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	1999 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2000 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2001 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2002 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2003 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2004 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2005 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2006 if (inst->src.params.regs.displacement) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2007 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2008 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2009 dst = call(dst, (uint8_t *)m68k_native_addr);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2010 dst = jmp_r(dst, SCRATCH1);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2011 break;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2012 case MODE_PC_DISPLACE:
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2013 dst = cycles(dst, 10);
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2014 m68k_addr = inst->src.params.regs.displacement + inst->address + 2;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2015 if ((m68k_addr & 0xFFFFFF) < 0x400000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2016 dest_addr = get_native_address(opts->native_code_map, m68k_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2017 if (!dest_addr) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2018 opts->deferred = defer_address(opts->deferred, m68k_addr, dst + 1);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2019 //dummy address to be replaced later, make sure it generates a 4-byte displacement
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2020 dest_addr = dst + 256;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2021 }
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2022 dst = jmp(dst, dest_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2023 } else {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2024 dst = mov_ir(dst, m68k_addr, SCRATCH1, SZ_D);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2025 dst = call(dst, (uint8_t *)m68k_native_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2026 dst = jmp_r(dst, SCRATCH1);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2027 }
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2028 break;
132 0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2029 case MODE_PC_INDEX_DISP8:
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2030 dst = cycles(dst, BUS*3);//TODO: CHeck that this is correct
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2031 dst = mov_ir(dst, inst->address+2, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2032 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2033 if (inst->src.params.regs.sec & 1) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2034 if (inst->src.params.regs.sec & 0x10) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2035 if (opts->aregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2036 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2037 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2038 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2039 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2040 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2041 if (opts->dregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2042 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2043 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2044 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2045 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2046 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2047 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2048 if (inst->src.params.regs.sec & 0x10) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2049 if (opts->aregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2050 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2051 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2052 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2053 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2054 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2055 if (opts->dregs[sec_reg] >= 0) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2056 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2057 } else {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2058 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2059 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2060 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2061 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2062 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2063 if (inst->src.params.regs.displacement) {
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2064 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2065 }
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2066 dst = call(dst, (uint8_t *)m68k_native_addr);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2067 dst = jmp_r(dst, SCRATCH1);
0969d8363a20 Support more address modes for jmp Mike Pavone <pavone@retrodev.com> parents: 129 diff changeset	2068 break;
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2069 case MODE_ABSOLUTE:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2070 case MODE_ABSOLUTE_SHORT:
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2071 dst = cycles(dst, inst->src.addr_mode == MODE_ABSOLUTE ? 12 : 10);
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2072 m68k_addr = inst->src.params.immed;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2073 if ((m68k_addr & 0xFFFFFF) < 0x400000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2074 dest_addr = get_native_address(opts->native_code_map, m68k_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2075 if (!dest_addr) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2076 opts->deferred = defer_address(opts->deferred, m68k_addr, dst + 1);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2077 //dummy address to be replaced later, make sure it generates a 4-byte displacement
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2078 dest_addr = dst + 256;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2079 }
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2080 dst = jmp(dst, dest_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2081 } else {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2082 dst = mov_ir(dst, m68k_addr, SCRATCH1, SZ_D);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2083 dst = call(dst, (uint8_t *)m68k_native_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2084 dst = jmp_r(dst, SCRATCH1);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2085 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2086 break;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2087 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	2088 m68k_disasm(inst, disasm_buf);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	2089 printf("%s\naddress mode %d not yet supported (jmp)\n", disasm_buf, inst->src.addr_mode);
104 a0fdaa134964 Use unsigned comparisons for address decoding, exit when we hit an unhandled addressing mode for jmp Mike Pavone <pavone@retrodev.com> parents: 102 diff changeset	2090 exit(1);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2091 }
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2092 return dst;
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2093 }
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2094
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2095 uint8_t * translate_m68k_jsr(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2096 {
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2097 uint8_t * dest_addr, sec_reg;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2098 uint32_t after;
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2099 uint32_t m68k_addr;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2100 switch(inst->src.addr_mode)
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2101 {
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2102 case MODE_AREG_INDIRECT:
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2103 dst = cycles(dst, BUS*2);
119 ee19ddadb398 Fix return address pushed to stack for jsr Mike Pavone <pavone@retrodev.com> parents: 118 diff changeset	2104 dst = mov_ir(dst, inst->address + 2, SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2105 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2106 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2107 }
81 6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	2108 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	2109 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
6d231dbe75ab Add support for indexed modes as a source, some work on jmp and jsr with areg indirect mode Mike Pavone <pavone@retrodev.com> parents: 78 diff changeset	2110 dst = call(dst, (char *)m68k_write_long_highfirst);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2111 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2112 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2113 } else {
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2114 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2115 }
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2116 dst = call(dst, (uint8_t *)m68k_native_addr);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2117 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2118 dst = call_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2119 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2120 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2121 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2122 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2123 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2124 break;
174 a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2125 case MODE_AREG_DISPLACE:
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2126 dst = cycles(dst, BUS*2);
187 8e138da572ab Fix return address for areg displacement mode JSR Mike Pavone <pavone@retrodev.com> parents: 184 diff changeset	2127 dst = mov_ir(dst, inst->address + 4, SCRATCH1, SZ_D);
174 a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2128 if (opts->flags & OPT_NATIVE_CALL_STACK) {
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2129 dst = push_r(dst, SCRATCH1);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2130 }
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2131 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2132 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2133 dst = call(dst, (char *)m68k_write_long_highfirst);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2134 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2135 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2136 } else {
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2137 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, SCRATCH1, SZ_D);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2138 }
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2139 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2140 dst = call(dst, (uint8_t *)m68k_native_addr);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2141 if (opts->flags & OPT_NATIVE_CALL_STACK) {
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2142 dst = call_r(dst, SCRATCH1);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2143 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2144 dst = pop_r(dst, SCRATCH1);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2145 } else {
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2146 dst = jmp_r(dst, SCRATCH1);
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2147 }
a1c3ecb4823f Implement areg displacement mode for jsr Mike Pavone <pavone@retrodev.com> parents: 173 diff changeset	2148 break;
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2149 case MODE_AREG_INDEX_DISP8:
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2150 dst = cycles(dst, BUS*3);//TODO: CHeck that this is correct
119 ee19ddadb398 Fix return address pushed to stack for jsr Mike Pavone <pavone@retrodev.com> parents: 118 diff changeset	2151 dst = mov_ir(dst, inst->address + 4, SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2152 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2153 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2154 }
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2155 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2156 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2157 dst = call(dst, (char *)m68k_write_long_highfirst);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2158 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2159 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2160 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2161 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2162 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2163 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2164 if (inst->src.params.regs.sec & 1) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2165 if (inst->src.params.regs.sec & 0x10) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2166 if (opts->aregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2167 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2168 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2169 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2170 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2171 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2172 if (opts->dregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2173 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2174 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2175 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2176 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2177 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2178 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2179 if (inst->src.params.regs.sec & 0x10) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2180 if (opts->aregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2181 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2182 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2183 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2184 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2185 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2186 if (opts->dregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2187 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2188 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2189 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2190 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2191 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2192 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2193 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2194 if (inst->src.params.regs.displacement) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2195 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2196 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2197 dst = call(dst, (uint8_t *)m68k_native_addr);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2198 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2199 dst = call_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2200 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2201 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2202 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2203 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2204 }
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2205 break;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2206 case MODE_PC_DISPLACE:
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2207 //TODO: Add cycles in the right place relative to pushing the return address on the stack
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2208 dst = cycles(dst, 10);
119 ee19ddadb398 Fix return address pushed to stack for jsr Mike Pavone <pavone@retrodev.com> parents: 118 diff changeset	2209 dst = mov_ir(dst, inst->address + 4, SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2210 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2211 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2212 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2213 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2214 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2215 dst = call(dst, (char *)m68k_write_long_highfirst);
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2216 m68k_addr = inst->src.params.regs.displacement + inst->address + 2;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2217 if ((m68k_addr & 0xFFFFFF) < 0x400000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2218 dest_addr = get_native_address(opts->native_code_map, m68k_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2219 if (!dest_addr) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2220 opts->deferred = defer_address(opts->deferred, m68k_addr, dst + 1);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2221 //dummy address to be replaced later, make sure it generates a 4-byte displacement
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2222 dest_addr = dst + 256;
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2223 }
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2224 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2225 dst = call(dst, (char *)dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2226 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2227 dst = jmp(dst, dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2228 }
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2229 } else {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2230 dst = mov_ir(dst, m68k_addr, SCRATCH1, SZ_D);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2231 dst = call(dst, (uint8_t *)m68k_native_addr);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2232 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2233 dst = call_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2234 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2235 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2236 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2237 }
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2238 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2239 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2240 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2241 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2242 break;
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2243 case MODE_PC_INDEX_DISP8:
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2244 dst = cycles(dst, BUS*3);//TODO: CHeck that this is correct
119 ee19ddadb398 Fix return address pushed to stack for jsr Mike Pavone <pavone@retrodev.com> parents: 118 diff changeset	2245 dst = mov_ir(dst, inst->address + 4, SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2246 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2247 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2248 }
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2249 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2250 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2251 dst = call(dst, (char *)m68k_write_long_highfirst);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2252 dst = mov_ir(dst, inst->address+2, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2253 sec_reg = (inst->src.params.regs.sec >> 1) & 0x7;
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2254 if (inst->src.params.regs.sec & 1) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2255 if (inst->src.params.regs.sec & 0x10) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2256 if (opts->aregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2257 dst = add_rr(dst, opts->aregs[sec_reg], SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2258 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2259 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2260 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2261 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2262 if (opts->dregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2263 dst = add_rr(dst, opts->dregs[sec_reg], SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2264 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2265 dst = add_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2266 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2267 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2268 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2269 if (inst->src.params.regs.sec & 0x10) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2270 if (opts->aregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2271 dst = movsx_rr(dst, opts->aregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2272 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2273 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2274 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2275 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2276 if (opts->dregs[sec_reg] >= 0) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2277 dst = movsx_rr(dst, opts->dregs[sec_reg], SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2278 } else {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2279 dst = movsx_rdisp8r(dst, CONTEXT, offsetof(m68k_context, dregs) + sizeof(uint32_t)*sec_reg, SCRATCH2, SZ_W, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2280 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2281 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2282 dst = add_rr(dst, SCRATCH2, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2283 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2284 if (inst->src.params.regs.displacement) {
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2285 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2286 }
a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2287 dst = call(dst, (uint8_t *)m68k_native_addr);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2288 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2289 dst = call_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2290 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2291 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2292 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2293 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2294 }
110 a575808dd90b Implement more address modes for jsr Mike Pavone <pavone@retrodev.com> parents: 107 diff changeset	2295 break;
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2296 case MODE_ABSOLUTE:
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2297 case MODE_ABSOLUTE_SHORT:
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2298 //TODO: Add cycles in the right place relative to pushing the return address on the stack
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2299 dst = cycles(dst, inst->src.addr_mode == MODE_ABSOLUTE ? 12 : 10);
119 ee19ddadb398 Fix return address pushed to stack for jsr Mike Pavone <pavone@retrodev.com> parents: 118 diff changeset	2300 dst = mov_ir(dst, inst->address + (inst->src.addr_mode == MODE_ABSOLUTE ? 6 : 4), SCRATCH1, SZ_D);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2301 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2302 dst = push_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2303 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2304 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2305 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2306 dst = call(dst, (char *)m68k_write_long_highfirst);
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2307 m68k_addr = inst->src.params.immed;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2308 if ((m68k_addr & 0xFFFFFF) < 0x400000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2309 dest_addr = get_native_address(opts->native_code_map, m68k_addr);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2310 if (!dest_addr) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2311 opts->deferred = defer_address(opts->deferred, m68k_addr, dst + 1);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2312 //dummy address to be replaced later, make sure it generates a 4-byte displacement
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2313 dest_addr = dst + 256;
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2314 }
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2315 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2316 dst = call(dst, (char *)dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2317 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2318 dst = jmp(dst, dest_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2319 }
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2320 } else {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2321 dst = mov_ir(dst, m68k_addr, SCRATCH1, SZ_D);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	2322 dst = call(dst, (uint8_t *)m68k_native_addr);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2323 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2324 dst = call_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2325 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2326 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2327 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2328 }
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2329 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2330 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2331 dst = pop_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2332 }
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2333 break;
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2334 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	2335 m68k_disasm(inst, disasm_buf);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	2336 printf("%s\naddress mode %d not yet supported (jsr)\n", disasm_buf, inst->src.addr_mode);
105 1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	2337 exit(1);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2338 }
53 44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	2339 return dst;
44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	2340 }
44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	2341
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2342 uint8_t * translate_m68k_rts(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2343 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2344 //TODO: Add cycles
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2345 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2346 dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2347 dst = call(dst, (char *)m68k_read_long_scratch1);
155 94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2348 if (opts->flags & OPT_NATIVE_CALL_STACK) {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2349 dst = cmp_rdisp8r(dst, RSP, 8, SCRATCH1, SZ_D);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2350 dst = jcc(dst, CC_NZ, dst+3);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2351 dst = retn(dst);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2352 dst = jmp(dst, (char *)m68k_modified_ret_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2353 } else {
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2354 dst = call(dst, (uint8_t *)m68k_native_addr);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2355 dst = jmp_r(dst, SCRATCH1);
94a65fb4e1c7 Don't use the native call stack for M68K calls by default Mike Pavone <pavone@retrodev.com> parents: 154 diff changeset	2356 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2357 return dst;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2358 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2359
46 f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2360 uint8_t * translate_m68k_dbcc(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2361 {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2362 //best case duration
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2363 dst = cycles(dst, 10);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2364 uint8_t * skip_loc = NULL;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2365 //TODO: Check if COND_TRUE technically valid here even though
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2366 //it's basically a slow NOP
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2367 if (inst->extra.cond != COND_FALSE) {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2368 uint8_t cond = CC_NZ;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2369 switch (inst->extra.cond)
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2370 {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2371 case COND_HIGH:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2372 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2373 case COND_LOW_SAME:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2374 dst = mov_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2375 dst = or_rr(dst, FLAG_C, SCRATCH1, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2376 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2377 case COND_CARRY_CLR:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2378 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2379 case COND_CARRY_SET:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2380 dst = cmp_ir(dst, 0, FLAG_C, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2381 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2382 case COND_NOT_EQ:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2383 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2384 case COND_EQ:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2385 dst = cmp_ir(dst, 0, FLAG_Z, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2386 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2387 case COND_OVERF_CLR:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2388 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2389 case COND_OVERF_SET:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2390 dst = cmp_ir(dst, 0, FLAG_V, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2391 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2392 case COND_PLUS:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2393 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2394 case COND_MINUS:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2395 dst = cmp_ir(dst, 0, FLAG_N, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2396 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2397 case COND_GREATER_EQ:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2398 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2399 case COND_LESS:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2400 dst = cmp_rr(dst, FLAG_N, FLAG_V, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2401 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2402 case COND_GREATER:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2403 cond = CC_Z;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2404 case COND_LESS_EQ:
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2405 dst = mov_rr(dst, FLAG_V, SCRATCH1, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2406 dst = xor_rr(dst, FLAG_N, SCRATCH1, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2407 dst = or_rr(dst, FLAG_Z, SCRATCH1, SZ_B);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2408 break;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2409 }
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2410 skip_loc = dst + 1;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2411 dst = jcc(dst, cond, dst + 2);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2412 }
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2413 if (opts->dregs[inst->dst.params.regs.pri] >= 0) {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2414 dst = sub_ir(dst, 1, opts->dregs[inst->dst.params.regs.pri], SZ_W);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2415 dst = cmp_ir(dst, -1, opts->dregs[inst->dst.params.regs.pri], SZ_W);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2416 } else {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2417 dst = sub_irdisp8(dst, 1, CONTEXT, offsetof(m68k_context, dregs) + 4 * inst->dst.params.regs.pri, SZ_W);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2418 dst = cmp_irdisp8(dst, -1, CONTEXT, offsetof(m68k_context, dregs) + 4 * inst->dst.params.regs.pri, SZ_W);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2419 }
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2420 uint8_t *loop_end_loc = dst+1;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2421 dst = jcc(dst, CC_Z, dst+2);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2422 uint32_t after = inst->address + 2;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2423 uint8_t * dest_addr = get_native_address(opts->native_code_map, after + inst->src.params.immed);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2424 if (!dest_addr) {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2425 opts->deferred = defer_address(opts->deferred, after + inst->src.params.immed, dst + 1);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2426 //dummy address to be replaced later, make sure it generates a 4-byte displacement
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2427 dest_addr = dst + 256;
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2428 }
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2429 dst = jmp(dst, dest_addr);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2430 *loop_end_loc = dst - (loop_end_loc+1);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2431 if (skip_loc) {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2432 dst = cycles(dst, 2);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2433 *skip_loc = dst - (skip_loc+1);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2434 dst = cycles(dst, 2);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2435 } else {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2436 dst = cycles(dst, 4);
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2437 }
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	2438 return dst;
46 f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2439 }
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2440
78 463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2441 uint8_t * translate_m68k_link(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2442 {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2443 int8_t reg = native_reg(&(inst->src), opts);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2444 //compensate for displacement word
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2445 dst = cycles(dst, BUS);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2446 dst = sub_ir(dst, 4, opts->aregs[7], SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2447 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2448 if (reg >= 0) {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2449 dst = mov_rr(dst, reg, SCRATCH1, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2450 } else {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2451 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2452 }
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2453 dst = call(dst, (char *)m68k_write_long_highfirst);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2454 if (reg >= 0) {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2455 dst = mov_rr(dst, opts->aregs[7], reg, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2456 } else {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2457 dst = mov_rrdisp8(dst, opts->aregs[7], CONTEXT, reg_offset(&(inst->src)), SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2458 }
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2459 dst = add_ir(dst, inst->dst.params.immed, opts->aregs[7], SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2460 //prefetch
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2461 dst = cycles(dst, BUS);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2462 return dst;
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2463 }
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2464
172 c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2465 uint8_t * translate_m68k_movep(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2466 {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2467 int8_t reg;
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2468 dst = cycles(dst, BUS*2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2469 if (inst->src.addr_mode == MODE_REG) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2470 if (opts->aregs[inst->dst.params.regs.pri] >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2471 dst = mov_rr(dst, opts->aregs[inst->dst.params.regs.pri], SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2472 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2473 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->dst)), SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2474 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2475 if (inst->dst.params.regs.displacement) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2476 dst = add_ir(dst, inst->dst.params.regs.displacement, SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2477 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2478 reg = native_reg(&(inst->src), opts);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2479 if (inst->extra.size == OPSIZE_LONG) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2480 if (reg >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2481 dst = mov_rr(dst, reg, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2482 dst = shr_ir(dst, 24, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2483 dst = push_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2484 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2485 dst = pop_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2486 dst = mov_rr(dst, reg, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2487 dst = shr_ir(dst, 16, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2488
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2489 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2490 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src))+3, SCRATCH1, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2491 dst = push_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2492 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2493 dst = pop_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2494 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src))+2, SCRATCH1, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2495 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2496 dst = add_ir(dst, 2, SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2497 dst = push_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2498 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2499 dst = pop_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2500 dst = add_ir(dst, 2, SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2501 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2502 if (reg >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2503 dst = mov_rr(dst, reg, SCRATCH1, SZ_W);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2504 dst = shr_ir(dst, 8, SCRATCH1, SZ_W);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2505 dst = push_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2506 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2507 dst = pop_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2508 dst = mov_rr(dst, reg, SCRATCH1, SZ_W);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2509 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2510 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src))+1, SCRATCH1, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2511 dst = push_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2512 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2513 dst = pop_r(dst, SCRATCH2);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2514 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2515 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2516 dst = add_ir(dst, 2, SCRATCH2, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2517 dst = call(dst, (uint8_t *)m68k_write_byte);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2518 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2519 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2520 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2521 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2522 dst = mov_rdisp8r(dst, CONTEXT, reg_offset(&(inst->src)), SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2523 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2524 if (inst->src.params.regs.displacement) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2525 dst = add_ir(dst, inst->src.params.regs.displacement, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2526 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2527 reg = native_reg(&(inst->dst), opts);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2528 if (inst->extra.size == OPSIZE_LONG) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2529 if (reg >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2530 dst = push_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2531 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2532 dst = shl_ir(dst, 24, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2533 dst = mov_rr(dst, SCRATCH1, reg, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2534 dst = pop_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2535 dst = add_ir(dst, 2, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2536 dst = push_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2537 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2538 dst = shl_ir(dst, 16, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2539 dst = or_rr(dst, SCRATCH1, reg, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2540 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2541 dst = push_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2542 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2543 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst))+3, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2544 dst = pop_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2545 dst = add_ir(dst, 2, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2546 dst = push_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2547 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2548 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst))+2, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2549 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2550 dst = pop_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2551 dst = add_ir(dst, 2, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2552 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2553 dst = push_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2554 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2555 if (reg >= 0) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2556
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2557 dst = shl_ir(dst, 8, SCRATCH1, SZ_W);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2558 dst = mov_rr(dst, SCRATCH1, reg, SZ_W);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2559 dst = pop_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2560 dst = add_ir(dst, 2, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2561 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2562 dst = mov_rr(dst, SCRATCH1, reg, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2563 } else {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2564 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst))+1, SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2565 dst = pop_r(dst, SCRATCH1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2566 dst = add_ir(dst, 2, SCRATCH1, SZ_D);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2567 dst = call(dst, (uint8_t *)m68k_read_byte_scratch1);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2568 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, reg_offset(&(inst->dst)), SZ_B);
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2569 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2570 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2571 return dst;
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2572 }
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2573
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2574 uint8_t * translate_m68k_cmp(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2575 {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2576 uint8_t size = inst->extra.size;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2577 x86_ea src_op, dst_op;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2578 dst = translate_m68k_src(inst, &src_op, dst, opts);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2579 if (inst->dst.addr_mode == MODE_AREG_POSTINC) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2580 dst = push_r(dst, SCRATCH1);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2581 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2582 dst = pop_r(dst, SCRATCH2);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2583 src_op.base = SCRATCH2;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2584 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2585 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2586 if (inst->dst.addr_mode == MODE_AREG && size == OPSIZE_WORD) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2587 size = OPSIZE_LONG;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2588 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2589 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2590 dst = cycles(dst, BUS);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2591 if (src_op.mode == MODE_REG_DIRECT) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2592 if (dst_op.mode == MODE_REG_DIRECT) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2593 dst = cmp_rr(dst, src_op.base, dst_op.base, size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2594 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2595 dst = cmp_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2596 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2597 } else if (src_op.mode == MODE_REG_DISPLACE8) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2598 dst = cmp_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2599 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2600 if (dst_op.mode == MODE_REG_DIRECT) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2601 dst = cmp_ir(dst, src_op.disp, dst_op.base, size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2602 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2603 dst = cmp_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, size);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2604 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2605 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2606 dst = setcc_r(dst, CC_C, FLAG_C);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2607 dst = setcc_r(dst, CC_Z, FLAG_Z);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2608 dst = setcc_r(dst, CC_S, FLAG_N);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2609 dst = setcc_r(dst, CC_O, FLAG_V);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2610 return dst;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2611 }
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2612
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2613 typedef uint8_t * (shift_ir_t)(uint8_t out, uint8_t val, uint8_t dst, uint8_t size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2614 typedef uint8_t * (shift_irdisp8_t)(uint8_t out, uint8_t val, uint8_t dst_base, int8_t disp, uint8_t size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2615 typedef uint8_t * (shift_clr_t)(uint8_t out, uint8_t dst, uint8_t size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2616 typedef uint8_t * (shift_clrdisp8_t)(uint8_t out, uint8_t dst_base, int8_t disp, uint8_t size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2617
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2618 uint8_t * translate_shift(uint8_t * dst, m68kinst * inst, x86_ea src_op, x86_ea dst_op, x86_68k_options * opts, shift_ir_t shift_ir, shift_irdisp8_t shift_irdisp8, shift_clr_t shift_clr, shift_clrdisp8_t shift_clrdisp8, shift_ir_t special, shift_irdisp8_t special_disp8)
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2619 {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2620 uint8_t * end_off = NULL;
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2621 uint8_t * nz_off = NULL;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2622 uint8_t * z_off = NULL;
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2623 if (inst->src.addr_mode == MODE_UNUSED) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2624 dst = cycles(dst, BUS);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2625 //Memory shift
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2626 dst = shift_ir(dst, 1, dst_op->base, SZ_W);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2627 } else {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2628 dst = cycles(dst, inst->extra.size == OPSIZE_LONG ? 8 : 6);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2629 if (src_op->mode == MODE_IMMED) {
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2630 if (src_op->disp != 1 && inst->op == M68K_ASL) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2631 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2632 for (int i = 0; i < src_op->disp; i++) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2633 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2634 dst = shift_ir(dst, 1, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2635 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2636 dst = shift_irdisp8(dst, 1, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2637 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2638 //dst = setcc_r(dst, CC_O, FLAG_V);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2639 dst = jcc(dst, CC_NO, dst+4);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2640 dst = mov_ir(dst, 1, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2641 }
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2642 } else {
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2643 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2644 dst = shift_ir(dst, src_op->disp, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2645 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2646 dst = shift_irdisp8(dst, src_op->disp, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2647 }
213 4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	2648 dst = setcc_r(dst, CC_O, FLAG_V);
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2649 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2650 } else {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2651 if (src_op->base != RCX) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2652 if (src_op->mode == MODE_REG_DIRECT) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2653 dst = mov_rr(dst, src_op->base, RCX, SZ_B);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2654 } else {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2655 dst = mov_rdisp8r(dst, src_op->base, src_op->disp, RCX, SZ_B);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2656 }
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2657
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2658 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2659 dst = and_ir(dst, 63, RCX, SZ_D);
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2660 nz_off = dst+1;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2661 dst = jcc(dst, CC_NZ, dst+2);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2662 //Flag behavior for shift count of 0 is different for x86 than 68K
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2663 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2664 dst = cmp_ir(dst, 0, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2665 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2666 dst = cmp_irdisp8(dst, 0, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2667 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2668 dst = setcc_r(dst, CC_Z, FLAG_Z);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2669 dst = setcc_r(dst, CC_S, FLAG_N);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2670 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2671 //For other instructions, this flag will be set below
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2672 if (inst->op == M68K_ASL) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2673 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2674 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2675 z_off = dst+1;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2676 dst = jmp(dst, dst+2);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2677 *nz_off = dst - (nz_off + 1);
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2678 //add 2 cycles for every bit shifted
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2679 dst = add_rr(dst, RCX, CYCLES, SZ_D);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2680 dst = add_rr(dst, RCX, CYCLES, SZ_D);
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2681 if (inst->op == M68K_ASL) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2682 //ASL has Overflow flag behavior that depends on all of the bits shifted through the MSB
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2683 //Easiest way to deal with this is to shift one bit at a time
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2684 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2685 uint8_t * loop_start = dst;
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2686 if (dst_op->mode == MODE_REG_DIRECT) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2687 dst = shift_ir(dst, 1, dst_op->base, inst->extra.size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2688 } else {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2689 dst = shift_irdisp8(dst, 1, dst_op->base, dst_op->disp, inst->extra.size);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2690 }
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2691 //dst = setcc_r(dst, CC_O, FLAG_V);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2692 dst = jcc(dst, CC_NO, dst+4);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2693 dst = mov_ir(dst, 1, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2694 dst = loop(dst, loop_start);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2695 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2696 //x86 shifts modulo 32 for operand sizes less than 64-bits
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2697 //but M68K shifts modulo 64, so we need to check for large shifts here
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2698 dst = cmp_ir(dst, 32, RCX, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2699 uint8_t * norm_shift_off = dst + 1;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2700 dst = jcc(dst, CC_L, dst+2);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2701 if (special) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2702 if (inst->extra.size == OPSIZE_LONG) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2703 uint8_t * neq_32_off = dst + 1;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2704 dst = jcc(dst, CC_NZ, dst+2);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2705
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2706 //set the carry bit to the lsb
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2707 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2708 dst = special(dst, 1, dst_op->base, SZ_D);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2709 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2710 dst = special_disp8(dst, 1, dst_op->base, dst_op->disp, SZ_D);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2711 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2712 dst = setcc_r(dst, CC_C, FLAG_C);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2713 dst = jmp(dst, dst+4);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2714 *neq_32_off = dst - (neq_32_off+1);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2715 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2716 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2717 dst = mov_ir(dst, 1, FLAG_Z, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2718 dst = mov_ir(dst, 0, FLAG_N, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2719 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2720 dst = xor_rr(dst, dst_op->base, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2721 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2722 dst = mov_irdisp8(dst, 0, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2723 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2724 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2725 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2726 dst = shift_ir(dst, 31, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2727 dst = shift_ir(dst, 1, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2728 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2729 dst = shift_irdisp8(dst, 31, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2730 dst = shift_irdisp8(dst, 1, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2731 }
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2732
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2733 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2734 end_off = dst+1;
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2735 dst = jmp(dst, dst+2);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2736 *norm_shift_off = dst - (norm_shift_off+1);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2737 if (dst_op->mode == MODE_REG_DIRECT) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2738 dst = shift_clr(dst, dst_op->base, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2739 } else {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2740 dst = shift_clrdisp8(dst, dst_op->base, dst_op->disp, inst->extra.size);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2741 }
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2742 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2743 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2744
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2745 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2746 if (!special && end_off) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2747 *end_off = dst - (end_off + 1);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2748 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2749 dst = setcc_r(dst, CC_C, FLAG_C);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2750 dst = setcc_r(dst, CC_Z, FLAG_Z);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2751 dst = setcc_r(dst, CC_S, FLAG_N);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2752 if (special && end_off) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2753 *end_off = dst - (end_off + 1);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2754 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2755 //set X flag to same as C flag
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2756 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
207 c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2757 if (z_off) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2758 *z_off = dst - (z_off + 1);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2759 }
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2760 if (inst->op != M68K_ASL && inst->src.addr_mode != MODE_UNUSED && !(src_op->mode == MODE_IMMED && src_op->disp == 1)) {
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2761 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
c82f65a87a53 Fix overflow flag on ASL Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	2762 }
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2763 if (inst->src.addr_mode == MODE_UNUSED) {
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2764 dst = m68k_save_result(inst, dst, opts);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2765 }
66 7a22a0e6c004 Gamepad support Mike Pavone <pavone@retrodev.com> parents: 64 diff changeset	2766 return dst;
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2767 }
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2768
73 8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2769 #define BIT_SUPERVISOR 5
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2770
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2771 uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2772 {
122 0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	2773 uint8_t * end_off, zero_off, norm_off;
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	2774 uint8_t dst_reg;
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	2775 dst = check_cycles_int(dst, inst->address);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2776 if (inst->op == M68K_MOVE) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2777 return translate_m68k_move(dst, inst, opts);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2778 } else if(inst->op == M68K_LEA) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2779 return translate_m68k_lea(dst, inst, opts);
116 9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	2780 } else if(inst->op == M68K_PEA) {
9eaba47c429d Implement pea (untested). Mike Pavone <pavone@retrodev.com> parents: 113 diff changeset	2781 return translate_m68k_pea(dst, inst, opts);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2782 } else if(inst->op == M68K_BSR) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2783 return translate_m68k_bsr(dst, inst, opts);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2784 } else if(inst->op == M68K_BCC) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2785 return translate_m68k_bcc(dst, inst, opts);
53 44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	2786 } else if(inst->op == M68K_JMP) {
44e661913a51 Add preliminary support for JMP Mike Pavone <pavone@retrodev.com> parents: 52 diff changeset	2787 return translate_m68k_jmp(dst, inst, opts);
76 187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2788 } else if(inst->op == M68K_JSR) {
187c65f40a64 Implement JSR for some addressing modes Mike Pavone <pavone@retrodev.com> parents: 74 diff changeset	2789 return translate_m68k_jsr(dst, inst, opts);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2790 } else if(inst->op == M68K_RTS) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2791 return translate_m68k_rts(dst, inst, opts);
46 f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2792 } else if(inst->op == M68K_DBCC) {
f2aaaf36c875 Add support for dbcc instruction Mike Pavone <pavone@retrodev.com> parents: 19 diff changeset	2793 return translate_m68k_dbcc(dst, inst, opts);
52 f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	2794 } else if(inst->op == M68K_CLR) {
f02ba3808757 Implement CLR, minor refactor of register offset calculation in context struct Mike Pavone <pavone@retrodev.com> parents: 51 diff changeset	2795 return translate_m68k_clr(dst, inst, opts);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2796 } else if(inst->op == M68K_MOVEM) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	2797 return translate_m68k_movem(dst, inst, opts);
78 463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2798 } else if(inst->op == M68K_LINK) {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	2799 return translate_m68k_link(dst, inst, opts);
93 f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	2800 } else if(inst->op == M68K_EXT) {
f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	2801 return translate_m68k_ext(dst, inst, opts);
112 e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	2802 } else if(inst->op == M68K_SCC) {
e3594572fb98 Implement scc (untested) Mike Pavone <pavone@retrodev.com> parents: 110 diff changeset	2803 return translate_m68k_scc(dst, inst, opts);
172 c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2804 } else if(inst->op == M68K_MOVEP) {
c61507f897e4 Implement movep Mike Pavone <pavone@retrodev.com> parents: 171 diff changeset	2805 return translate_m68k_movep(dst, inst, opts);
176 e2918b5208eb Print a message when we try to run an invalid instruction, not when we try to translate it Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	2806 } else if(inst->op == M68K_INVALID) {
208 3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	2807 if (inst->src.params.immed == 0x7100) {
3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	2808 return retn(dst);
3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	2809 }
176 e2918b5208eb Print a message when we try to run an invalid instruction, not when we try to translate it Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	2810 dst = mov_ir(dst, inst->address, SCRATCH1, SZ_D);
e2918b5208eb Print a message when we try to run an invalid instruction, not when we try to translate it Mike Pavone <pavone@retrodev.com> parents: 175 diff changeset	2811 return call(dst, (uint8_t *)m68k_invalid);
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2812 } else if(inst->op == M68K_CMP) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2813 return translate_m68k_cmp(dst, inst, opts);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2814 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2815 x86_ea src_op, dst_op;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2816 if (inst->src.addr_mode != MODE_UNUSED) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2817 dst = translate_m68k_src(inst, &src_op, dst, opts);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2818 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2819 if (inst->dst.addr_mode != MODE_UNUSED) {
92 c3d034e076ee Fix some bugs in emulation of CLR Mike Pavone <pavone@retrodev.com> parents: 87 diff changeset	2820 dst = translate_m68k_dst(inst, &dst_op, dst, opts, 0);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2821 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2822 uint8_t size;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2823 switch(inst->op)
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2824 {
194 811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2825 case M68K_ABCD:
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2826 if (src_op.base != SCRATCH2) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2827 if (src_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2828 dst = mov_rr(dst, src_op.base, SCRATCH2, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2829 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2830 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2831 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2832 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2833 if (dst_op.base != SCRATCH1) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2834 if (dst_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2835 dst = mov_rr(dst, dst_op.base, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2836 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2837 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2838 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2839 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2840 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2841 dst = jcc(dst, CC_NC, dst+5);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2842 dst = add_ir(dst, 1, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2843 dst = call(dst, (uint8_t *)bcd_add);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2844 dst = mov_rr(dst, CH, FLAG_C, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2845 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2846 dst = cmp_ir(dst, 0, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2847 dst = jcc(dst, CC_Z, dst+4);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2848 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2849 if (dst_op.base != SCRATCH1) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2850 if (dst_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2851 dst = mov_rr(dst, SCRATCH1, dst_op.base, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2852 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2853 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2854 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2855 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2856 dst = m68k_save_result(inst, dst, opts);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	2857 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2858 case M68K_ADD:
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2859 dst = cycles(dst, BUS);
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2860 size = inst->dst.addr_mode == MODE_AREG ? OPSIZE_LONG : inst->extra.size;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2861 if (src_op.mode == MODE_REG_DIRECT) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2862 if (dst_op.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2863 dst = add_rr(dst, src_op.base, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2864 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2865 dst = add_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2866 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2867 } else if (src_op.mode == MODE_REG_DISPLACE8) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2868 dst = add_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2869 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2870 if (dst_op.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2871 dst = add_ir(dst, src_op.disp, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2872 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	2873 dst = add_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2874 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2875 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2876 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2877 dst = setcc_r(dst, CC_C, FLAG_C);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2878 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2879 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2880 dst = setcc_r(dst, CC_O, FLAG_V);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2881 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2882 }
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2883 dst = m68k_save_result(inst, dst, opts);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	2884 break;
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2885 case M68K_ADDX:
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2886 dst = cycles(dst, BUS);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2887 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2888 if (src_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2889 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2890 dst = adc_rr(dst, src_op.base, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2891 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2892 dst = adc_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2893 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2894 } else if (src_op.mode == MODE_REG_DISPLACE8) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2895 dst = adc_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2896 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2897 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2898 dst = adc_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2899 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2900 dst = adc_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2901 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2902 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2903 dst = setcc_r(dst, CC_C, FLAG_C);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2904 dst = jcc(dst, CC_Z, dst+4);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	2905 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2906 dst = setcc_r(dst, CC_S, FLAG_N);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2907 dst = setcc_r(dst, CC_O, FLAG_V);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2908 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2909 dst = m68k_save_result(inst, dst, opts);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	2910 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2911 case M68K_AND:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2912 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2913 if (src_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2914 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2915 dst = and_rr(dst, src_op.base, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2916 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2917 dst = and_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2918 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2919 } else if (src_op.mode == MODE_REG_DISPLACE8) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2920 dst = and_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2921 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2922 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2923 dst = and_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2924 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2925 dst = and_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2926 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2927 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2928 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2929 dst = setcc_r(dst, CC_Z, FLAG_Z);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2930 dst = setcc_r(dst, CC_S, FLAG_N);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2931 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2932 dst = m68k_save_result(inst, dst, opts);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2933 break;
73 8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2934 case M68K_ANDI_CCR:
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2935 case M68K_ANDI_SR:
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2936 dst = cycles(dst, 20);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2937 //TODO: If ANDI to SR, trap if not in supervisor mode
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2938 if (!(inst->src.params.immed & 0x1)) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2939 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2940 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2941 if (!(inst->src.params.immed & 0x2)) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2942 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2943 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2944 if (!(inst->src.params.immed & 0x4)) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2945 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2946 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2947 if (!(inst->src.params.immed & 0x8)) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2948 dst = mov_ir(dst, 0, FLAG_N, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2949 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2950 if (!(inst->src.params.immed & 0x10)) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2951 dst = mov_irind(dst, 0, CONTEXT, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2952 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2953 if (inst->op == M68K_ANDI_SR) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2954 dst = and_irdisp8(dst, inst->src.params.immed >> 8, CONTEXT, offsetof(m68k_context, status), SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2955 if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2956 //leave supervisor mode
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2957 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2958 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2959 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2960 }
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	2961 if (inst->src.params.immed & 0x700) {
3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	2962 dst = call(dst, (uint8_t *)do_sync);
3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	2963 }
73 8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2964 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	2965 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2966 case M68K_ASL:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2967 case M68K_LSL:
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2968 dst = translate_shift(dst, inst, &src_op, &dst_op, opts, shl_ir, shl_irdisp8, shl_clr, shl_clrdisp8, shr_ir, shr_irdisp8);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2969 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2970 case M68K_ASR:
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2971 dst = translate_shift(dst, inst, &src_op, &dst_op, opts, sar_ir, sar_irdisp8, sar_clr, sar_clrdisp8, NULL, NULL);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2972 break;
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	2973 case M68K_LSR:
51 937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2974 dst = translate_shift(dst, inst, &src_op, &dst_op, opts, shr_ir, shr_irdisp8, shr_clr, shr_clrdisp8, shl_ir, shl_irdisp8);
937b47c9b79b Implement shift instructions (asl, lsl, asr, lsr). Add flags to register printout. Fix minor bug in shift/rotate instruction decoding. Mike Pavone <pavone@retrodev.com> parents: 49 diff changeset	2975 break;
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2976 case M68K_BCHG:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2977 case M68K_BCLR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2978 case M68K_BSET:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	2979 case M68K_BTST:
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	2980 dst = cycles(dst, inst->extra.size == OPSIZE_BYTE ? 4 : 6);
67 534eb4976423 Fix BTST Mike Pavone <pavone@retrodev.com> parents: 66 diff changeset	2981 if (src_op.mode == MODE_IMMED) {
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	2982 if (inst->extra.size == OPSIZE_BYTE) {
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	2983 src_op.disp &= 0x7;
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	2984 }
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2985 if (inst->op == M68K_BTST) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2986 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	2987 dst = bt_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2988 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	2989 dst = bt_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2990 }
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2991 } else if (inst->op == M68K_BSET) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2992 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	2993 dst = bts_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2994 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	2995 dst = bts_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2996 }
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2997 } else if (inst->op == M68K_BCLR) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	2998 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	2999 dst = btr_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3000 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3001 dst = btr_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3002 }
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3003 } else {
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3004 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3005 dst = btc_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3006 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3007 dst = btc_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3008 }
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3009 }
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3010 } else {
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3011 if (src_op.mode == MODE_REG_DISPLACE8) {
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3012 if (dst_op.base == SCRATCH1) {
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3013 dst = push_r(dst, SCRATCH2);
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3014 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_B);
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3015 src_op.base = SCRATCH2;
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3016 } else {
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3017 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_B);
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3018 src_op.base = SCRATCH1;
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3019 }
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3020 }
154 4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3021 if (dst_op.mode == MODE_REG_DISPLACE8) {
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3022 if (src_op.base != SCRATCH1 && src_op.base != SCRATCH2) {
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3023 if (src_op.mode == MODE_REG_DIRECT) {
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3024 dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_D);
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3025 } else {
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3026 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_D);
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3027 src_op.mode = MODE_REG_DIRECT;
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3028 }
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3029 src_op.base = SCRATCH1;
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3030 }
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3031 dst = and_ir(dst, 31, SCRATCH1, SZ_D);
4791c0204410 Small fix for bit instructions Mike Pavone <pavone@retrodev.com> parents: 152 diff changeset	3032 }
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3033 if (inst->op == M68K_BTST) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3034 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3035 dst = bt_rr(dst, src_op.base, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3036 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3037 dst = bt_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3038 }
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3039 } else if (inst->op == M68K_BSET) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3040 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3041 dst = bts_rr(dst, src_op.base, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3042 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3043 dst = bts_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3044 }
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3045 } else if (inst->op == M68K_BCLR) {
bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3046 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3047 dst = btr_rr(dst, src_op.base, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3048 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3049 dst = btr_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3050 }
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3051 } else {
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3052 if (dst_op.mode == MODE_REG_DIRECT) {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3053 dst = btc_rr(dst, src_op.base, dst_op.base, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3054 } else {
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3055 dst = btc_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
123 bd3858121ab0 Implement the rest of the bit instructions Mike Pavone <pavone@retrodev.com> parents: 122 diff changeset	3056 }
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3057 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3058 if (src_op.base == SCRATCH2) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3059 dst = pop_r(dst, SCRATCH2);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3060 }
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3061 }
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3062 //x86 sets the carry flag to the value of the bit tested
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3063 //68K sets the zero flag to the complement of the bit tested
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3064 dst = setcc_r(dst, CC_NC, FLAG_Z);
128 fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3065 if (inst->op != M68K_BTST) {
fe598ffd85ce Cleanup bit instructions and fix bug in translate_m68k_move that caused incorrect results once translate_m68k_src was fixed Mike Pavone <pavone@retrodev.com> parents: 126 diff changeset	3066 dst = m68k_save_result(inst, dst, opts);
61 918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3067 }
918468c623e9 Add support for BTST instruction (untested), absolute addressing mode for instructions other than move (untested) and fix decoding of MOVEM. Mike Pavone <pavone@retrodev.com> parents: 59 diff changeset	3068 break;
70 cebd0b5ac7f0 Make the translator bail out if it hits an instruction I haven't implemented yet Mike Pavone <pavone@retrodev.com> parents: 67 diff changeset	3069 /*case M68K_CHK:
cebd0b5ac7f0 Make the translator bail out if it hits an instruction I haven't implemented yet Mike Pavone <pavone@retrodev.com> parents: 67 diff changeset	3070 break;*/
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3071 case M68K_DIVS:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3072 case M68K_DIVU:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3073 //TODO: Trap on division by zero
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3074 dst = cycles(dst, inst->op == M68K_DIVS ? 158 : 140);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3075 dst = push_r(dst, RDX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3076 dst = push_r(dst, RAX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3077 if (dst_op.mode == MODE_REG_DIRECT) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3078 dst = mov_rr(dst, dst_op.base, RAX, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3079 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3080 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, RAX, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3081 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3082 if (src_op.mode == MODE_IMMED) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3083 dst = mov_ir(dst, src_op.disp, SCRATCH2, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3084 } else if (src_op.mode == MODE_REG_DIRECT) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3085 if (inst->op == M68K_DIVS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3086 dst = movsx_rr(dst, src_op.base, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3087 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3088 dst = movzx_rr(dst, src_op.base, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3089 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3090 } else if (src_op.mode == MODE_REG_DISPLACE8) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3091 if (inst->op == M68K_DIVS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3092 dst = movsx_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3093 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3094 dst = movzx_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3095 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3096 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3097 if (inst->op == M68K_DIVS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3098 dst = cdq(dst);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3099 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3100 dst = xor_rr(dst, RDX, RDX, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3101 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3102 if (inst->op == M68K_DIVS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3103 dst = idiv_r(dst, SCRATCH2, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3104 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3105 dst = div_r(dst, SCRATCH2, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3106 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3107 dst = cmp_ir(dst, 0x10000, RAX, SZ_D);
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3108 if (inst->op == M68K_DIVS) {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3109 uint8_t * skip_sec_check = dst + 1;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3110 dst = jcc(dst, CC_C, dst+2);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3111 dst = cmp_ir(dst, -0x10000, RAX, SZ_D);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3112 norm_off = dst+1;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3113 dst = jcc(dst, CC_LE, dst+2);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3114 *skip_sec_check = dst - (skip_sec_check+1);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3115 } else {
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3116 norm_off = dst+1;
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3117 dst = jcc(dst, CC_NC, dst+2);
3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3118 }
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3119 if (dst_op.mode == MODE_REG_DIRECT) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3120 dst = mov_rr(dst, RDX, dst_op.base, SZ_W);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3121 dst = shl_ir(dst, 16, dst_op.base, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3122 dst = mov_rr(dst, RAX, dst_op.base, SZ_W);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3123 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3124 dst = mov_rrdisp8(dst, RDX, dst_op.base, dst_op.disp, SZ_W);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3125 dst = shl_irdisp8(dst, 16, dst_op.base, dst_op.disp, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3126 dst = mov_rrdisp8(dst, RAX, dst_op.base, dst_op.disp, SZ_W);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3127 }
209 922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3128 dst = cmp_ir(dst, 0, RAX, SZ_W);
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3129 dst = pop_r(dst, RAX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3130 dst = pop_r(dst, RDX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3131 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3132 dst = setcc_r(dst, CC_Z, FLAG_Z);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3133 dst = setcc_r(dst, CC_S, FLAG_N);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3134 end_off = dst+1;
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3135 dst = jmp(dst, dst+2);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3136 *norm_off = dst - (norm_off + 1);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3137 dst = pop_r(dst, RAX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3138 dst = pop_r(dst, RDX);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3139 dst = mov_ir(dst, 1, FLAG_V, SZ_B);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3140 *end_off = dst - (end_off + 1);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3141 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3142 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3143 case M68K_EOR:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3144 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3145 if (src_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3146 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3147 dst = xor_rr(dst, src_op.base, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3148 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3149 dst = xor_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3150 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3151 } else if (src_op.mode == MODE_REG_DISPLACE8) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3152 dst = xor_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3153 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3154 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3155 dst = xor_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3156 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3157 dst = xor_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3158 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3159 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3160 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3161 dst = setcc_r(dst, CC_Z, FLAG_Z);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3162 dst = setcc_r(dst, CC_S, FLAG_N);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3163 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3164 dst = m68k_save_result(inst, dst, opts);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3165 break;
171 f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3166 case M68K_EORI_CCR:
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3167 case M68K_EORI_SR:
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3168 dst = cycles(dst, 20);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3169 //TODO: If ANDI to SR, trap if not in supervisor mode
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3170 if (inst->src.params.immed & 0x1) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3171 dst = xor_ir(dst, 1, FLAG_C, SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3172 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3173 if (inst->src.params.immed & 0x2) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3174 dst = xor_ir(dst, 1, FLAG_V, SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3175 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3176 if (inst->src.params.immed & 0x4) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3177 dst = xor_ir(dst, 1, FLAG_Z, SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3178 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3179 if (inst->src.params.immed & 0x8) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3180 dst = xor_ir(dst, 1, FLAG_N, SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3181 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3182 if (inst->src.params.immed & 0x10) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3183 dst = xor_irdisp8(dst, 1, CONTEXT, 0, SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3184 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3185 if (inst->op == M68K_ORI_SR) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3186 dst = xor_irdisp8(dst, inst->src.params.immed >> 8, CONTEXT, offsetof(m68k_context, status), SZ_B);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3187 if (inst->src.params.immed & 0x700) {
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3188 dst = call(dst, (uint8_t *)do_sync);
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3189 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3190 }
f03db3db48fb Implement EORI CCR/SR Mike Pavone <pavone@retrodev.com> parents: 170 diff changeset	3191 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3192 case M68K_EXG:
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3193 dst = cycles(dst, 6);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3194 if (dst_op.mode == MODE_REG_DIRECT) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3195 dst = mov_rr(dst, dst_op.base, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3196 if (src_op.mode == MODE_REG_DIRECT) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3197 dst = mov_rr(dst, src_op.base, dst_op.base, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3198 dst = mov_rr(dst, SCRATCH2, src_op.base, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3199 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3200 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3201 dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3202 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3203 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3204 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH2, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3205 if (src_op.mode == MODE_REG_DIRECT) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3206 dst = mov_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3207 dst = mov_rr(dst, SCRATCH2, src_op.base, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3208 } else {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3209 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3210 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3211 dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, SZ_D);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3212 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3213 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3214 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3215 case M68K_ILLEGAL:
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3216 dst = call(dst, (uint8_t *)m68k_save_context);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3217 dst = mov_rr(dst, CONTEXT, RDI, SZ_Q);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3218 dst = call(dst, (uint8_t *)print_regs_exit);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3219 break;
105 1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3220 case M68K_MOVE_FROM_SR:
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3221 //TODO: Trap if not in system mode
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3222 dst = call(dst, (uint8_t *)get_sr);
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3223 if (dst_op.mode == MODE_REG_DIRECT) {
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3224 dst = mov_rr(dst, SCRATCH1, dst_op.base, SZ_W);
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3225 } else {
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3226 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_W);
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3227 }
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3228 dst = m68k_save_result(inst, dst, opts);
1a0fd122ca8f Implemented move from SR Mike Pavone <pavone@retrodev.com> parents: 104 diff changeset	3229 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3230 case M68K_MOVE_CCR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3231 case M68K_MOVE_SR:
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3232 //TODO: Privilege check for MOVE to SR
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3233 if (src_op.mode == MODE_IMMED) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3234 dst = mov_ir(dst, src_op.disp & 0x1, FLAG_C, SZ_B);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3235 dst = mov_ir(dst, (src_op.disp >> 1) & 0x1, FLAG_V, SZ_B);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3236 dst = mov_ir(dst, (src_op.disp >> 2) & 0x1, FLAG_Z, SZ_B);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3237 dst = mov_ir(dst, (src_op.disp >> 3) & 0x1, FLAG_N, SZ_B);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3238 dst = mov_irind(dst, (src_op.disp >> 4) & 0x1, CONTEXT, SZ_B);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3239 if (inst->op == M68K_MOVE_SR) {
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3240 dst = mov_irdisp8(dst, (src_op.disp >> 8), CONTEXT, offsetof(m68k_context, status), SZ_B);
73 8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3241 if (!((inst->src.params.immed >> 8) & (1 << BIT_SUPERVISOR))) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3242 //leave supervisor mode
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3243 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3244 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3245 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3246 }
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3247 dst = call(dst, (uint8_t *)do_sync);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3248 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3249 dst = cycles(dst, 12);
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3250 } else {
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3251 if (src_op.base != SCRATCH1) {
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3252 if (src_op.mode == MODE_REG_DIRECT) {
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3253 dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_W);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3254 } else {
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3255 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_W);
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3256 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3257 }
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3258 dst = call(dst, (uint8_t *)(inst->op == M68K_MOVE_SR ? set_sr : set_ccr));
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3259 dst = cycles(dst, 12);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3260
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3261 }
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	3262 break;
73 8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3263 case M68K_MOVE_USP:
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3264 dst = cycles(dst, BUS);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3265 //TODO: Trap if not in supervisor mode
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3266 //dst = bt_irdisp8(dst, BIT_SUPERVISOR, CONTEXT, offsetof(m68k_context, status), SZ_B);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3267 if (inst->src.addr_mode == MODE_UNUSED) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3268 if (dst_op.mode == MODE_REG_DIRECT) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3269 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, dst_op.base, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3270 } else {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3271 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SCRATCH1, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3272 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3273 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3274 } else {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3275 if (src_op.mode == MODE_REG_DIRECT) {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3276 dst = mov_rrdisp8(dst, src_op.base, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3277 } else {
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3278 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3279 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3280 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3281 }
8da611e69b32 Implement a couple of supervisor instructions Mike Pavone <pavone@retrodev.com> parents: 71 diff changeset	3282 break;
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3283 //case M68K_MOVEP:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3284 case M68K_MULS:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3285 case M68K_MULU:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3286 dst = cycles(dst, 70); //TODO: Calculate the actual value based on the value of the <ea> parameter
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3287 if (src_op.mode == MODE_IMMED) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3288 //immediate value should already be sign extended to 32-bits
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3289 dst = mov_ir(dst, inst->op == M68K_MULU ? (src_op.disp & 0xFFFF) : src_op.disp, SCRATCH1, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3290 } else if (src_op.mode == MODE_REG_DIRECT) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3291 if (inst->op == M68K_MULS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3292 dst = movsx_rr(dst, src_op.base, SCRATCH1, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3293 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3294 dst = movzx_rr(dst, src_op.base, SCRATCH1, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3295 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3296 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3297 if (inst->op == M68K_MULS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3298 dst = movsx_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3299 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3300 dst = movzx_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3301 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3302 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3303 if (dst_op.mode == MODE_REG_DIRECT) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3304 dst_reg = dst_op.base;
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3305 if (inst->op == M68K_MULS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3306 dst = movsx_rr(dst, dst_reg, dst_reg, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3307 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3308 dst = movzx_rr(dst, dst_reg, dst_reg, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3309 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3310 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3311 dst_reg = SCRATCH2;
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3312 if (inst->op == M68K_MULS) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3313 dst = movsx_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3314 } else {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3315 dst = movzx_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH2, SZ_W, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3316 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3317 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3318 dst = imul_rr(dst, SCRATCH1, dst_reg, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3319 if (dst_op.mode == MODE_REG_DISPLACE8) {
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3320 dst = mov_rrdisp8(dst, dst_reg, dst_op.base, dst_op.disp, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3321 }
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3322 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3323 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3324 dst = cmp_ir(dst, 0, dst_reg, SZ_D);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3325 dst = setcc_r(dst, CC_Z, FLAG_Z);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3326 dst = setcc_r(dst, CC_S, FLAG_N);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3327 break;
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3328 //case M68K_NBCD:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3329 case M68K_NEG:
173 47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3330 dst = cycles(dst, BUS);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3331 if (dst_op.mode == MODE_REG_DIRECT) {
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3332 dst = neg_r(dst, dst_op.base, inst->extra.size);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3333 } else {
165 62b152811bae Fix certain address modes with lea when the destination is not a native register Mike Pavone <pavone@retrodev.com> parents: 162 diff changeset	3334 dst = neg_rdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3335 }
173 47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3336 dst = setcc_r(dst, CC_C, FLAG_C);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3337 dst = setcc_r(dst, CC_Z, FLAG_Z);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3338 dst = setcc_r(dst, CC_S, FLAG_N);
173 47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3339 dst = setcc_r(dst, CC_O, FLAG_V);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3340 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3341 dst = m68k_save_result(inst, dst, opts);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3342 break;
173 47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3343 case M68K_NEGX:
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3344 dst = cycles(dst, BUS);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3345 if (dst_op.mode == MODE_REG_DIRECT) {
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3346 if (dst_op.base == SCRATCH1) {
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3347 dst = push_r(dst, SCRATCH2);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3348 dst = xor_rr(dst, SCRATCH2, SCRATCH2, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3349 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3350 dst = sbb_rr(dst, dst_op.base, SCRATCH2, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3351 dst = mov_rr(dst, SCRATCH2, dst_op.base, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3352 dst = pop_r(dst, SCRATCH2);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3353 } else {
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3354 dst = xor_rr(dst, SCRATCH1, SCRATCH1, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3355 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3356 dst = sbb_rr(dst, dst_op.base, SCRATCH1, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3357 dst = mov_rr(dst, SCRATCH1, dst_op.base, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3358 }
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3359 } else {
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3360 dst = xor_rr(dst, SCRATCH1, SCRATCH1, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3361 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3362 dst = sbb_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH1, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3363 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, inst->extra.size);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3364 }
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3365 dst = setcc_r(dst, CC_C, FLAG_C);
209 922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3366 dst = jcc(dst, CC_Z, dst+4);
922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3367 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
173 47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3368 dst = setcc_r(dst, CC_S, FLAG_N);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3369 dst = setcc_r(dst, CC_O, FLAG_V);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3370 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3371 dst = m68k_save_result(inst, dst, opts);
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3372 break;
47b2796fb277 Implement negx Mike Pavone <pavone@retrodev.com> parents: 172 diff changeset	3373 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3374 case M68K_NOP:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3375 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3376 break;
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3377 case M68K_NOT:
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3378 if (dst_op.mode == MODE_REG_DIRECT) {
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3379 dst = not_r(dst, dst_op.base, inst->extra.size);
209 922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3380 dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3381 } else {
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3382 dst = not_rdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
209 922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3383 dst = cmp_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3384 }
209 922b59c09259 Flag fixes for div, negx and not Mike Pavone <pavone@retrodev.com> parents: 208 diff changeset	3385
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3386 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3387 dst = setcc_r(dst, CC_Z, FLAG_Z);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3388 dst = setcc_r(dst, CC_S, FLAG_N);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3389 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3390 dst = m68k_save_result(inst, dst, opts);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3391 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3392 case M68K_OR:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3393 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3394 if (src_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3395 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3396 dst = or_rr(dst, src_op.base, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3397 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3398 dst = or_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3399 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3400 } else if (src_op.mode == MODE_REG_DISPLACE8) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3401 dst = or_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3402 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3403 if (dst_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3404 dst = or_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3405 } else {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3406 dst = or_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3407 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3408 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3409 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3410 dst = setcc_r(dst, CC_Z, FLAG_Z);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3411 dst = setcc_r(dst, CC_S, FLAG_N);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3412 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3413 dst = m68k_save_result(inst, dst, opts);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3414 break;
106 1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3415 case M68K_ORI_CCR:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3416 case M68K_ORI_SR:
106 1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3417 dst = cycles(dst, 20);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3418 //TODO: If ANDI to SR, trap if not in supervisor mode
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3419 if (inst->src.params.immed & 0x1) {
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3420 dst = mov_ir(dst, 1, FLAG_C, SZ_B);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3421 }
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3422 if (inst->src.params.immed & 0x2) {
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3423 dst = mov_ir(dst, 1, FLAG_V, SZ_B);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3424 }
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3425 if (inst->src.params.immed & 0x4) {
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3426 dst = mov_ir(dst, 1, FLAG_Z, SZ_B);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3427 }
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3428 if (inst->src.params.immed & 0x8) {
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3429 dst = mov_ir(dst, 1, FLAG_N, SZ_B);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3430 }
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3431 if (inst->src.params.immed & 0x10) {
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3432 dst = mov_irind(dst, 1, CONTEXT, SZ_B);
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3433 }
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3434 if (inst->op == M68K_ORI_SR) {
106 1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3435 dst = or_irdisp8(dst, inst->src.params.immed >> 8, CONTEXT, offsetof(m68k_context, status), SZ_B);
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3436 if (inst->src.params.immed & 0x700) {
3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3437 dst = call(dst, (uint8_t *)do_sync);
3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3438 }
106 1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3439 }
1eba2b9455f8 Implement ORI to CCR/SR Mike Pavone <pavone@retrodev.com> parents: 105 diff changeset	3440 break;
213 4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	3441 case M68K_RESET:
4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	3442 dst = call(dst, (uint8_t *)m68k_save_context);
4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	3443 dst = mov_rr(dst, CONTEXT, RDI, SZ_Q);
4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	3444 dst = call(dst, (uint8_t *)print_regs_exit);
4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	3445 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3446 case M68K_ROL:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3447 case M68K_ROR:
122 0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3448 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3449 if (inst->src.addr_mode == MODE_UNUSED) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3450 dst = cycles(dst, BUS);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3451 //Memory rotate
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3452 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3453 dst = rol_ir(dst, 1, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3454 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3455 dst = ror_ir(dst, 1, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3456 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3457 dst = setcc_r(dst, CC_C, FLAG_C);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3458 dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3459 dst = setcc_r(dst, CC_Z, FLAG_Z);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3460 dst = setcc_r(dst, CC_S, FLAG_N);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3461 dst = m68k_save_result(inst, dst, opts);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3462 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3463 if (src_op.mode == MODE_IMMED) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3464 dst = cycles(dst, (inst->extra.size == OPSIZE_LONG ? 8 : 6) + src_op.disp*2);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3465 if (dst_op.mode == MODE_REG_DIRECT) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3466 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3467 dst = rol_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3468 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3469 dst = ror_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3470 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3471 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3472 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3473 dst = rol_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3474 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3475 dst = ror_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3476 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3477 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3478 dst = setcc_r(dst, CC_C, FLAG_C);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3479 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3480 if (src_op.mode == MODE_REG_DIRECT) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3481 if (src_op.base != SCRATCH1) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3482 dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3483 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3484 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3485 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3486 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3487 dst = and_ir(dst, 63, SCRATCH1, SZ_D);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3488 zero_off = dst+1;
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3489 dst = jcc(dst, CC_Z, dst+2);
122 0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3490 dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3491 dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3492 dst = cmp_ir(dst, 32, SCRATCH1, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3493 norm_off = dst+1;
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3494 dst = jcc(dst, CC_L, dst+2);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3495 if (dst_op.mode == MODE_REG_DIRECT) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3496 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3497 dst = rol_ir(dst, 31, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3498 dst = rol_ir(dst, 1, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3499 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3500 dst = ror_ir(dst, 31, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3501 dst = ror_ir(dst, 1, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3502 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3503 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3504 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3505 dst = rol_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3506 dst = rol_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3507 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3508 dst = ror_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3509 dst = ror_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3510 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3511 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3512 dst = sub_ir(dst, 32, SCRATCH1, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3513 *norm_off = dst - (norm_off+1);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3514 if (dst_op.mode == MODE_REG_DIRECT) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3515 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3516 dst = rol_clr(dst, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3517 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3518 dst = ror_clr(dst, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3519 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3520 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3521 if (inst->op == M68K_ROL) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3522 dst = rol_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3523 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3524 dst = ror_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3525 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3526 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3527 dst = setcc_r(dst, CC_C, FLAG_C);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3528 end_off = dst + 1;
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3529 dst = jmp(dst, dst+2);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3530 *zero_off = dst - (zero_off+1);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3531 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3532 *end_off = dst - (end_off+1);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3533 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3534 if (dst_op.mode == MODE_REG_DIRECT) {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3535 dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3536 } else {
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3537 dst = cmp_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3538 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3539 dst = setcc_r(dst, CC_Z, FLAG_Z);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3540 dst = setcc_r(dst, CC_S, FLAG_N);
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3541 }
0a6da6c7c463 Implemented ROL and ROR Mike Pavone <pavone@retrodev.com> parents: 121 diff changeset	3542 break;
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3543 case M68K_ROXL:
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3544 case M68K_ROXR:
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3545 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3546 if (inst->src.addr_mode == MODE_UNUSED) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3547 dst = cycles(dst, BUS);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3548 //Memory rotate
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3549 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3550 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3551 dst = rcl_ir(dst, 1, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3552 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3553 dst = rcr_ir(dst, 1, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3554 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3555 dst = setcc_r(dst, CC_C, FLAG_C);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3556 dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3557 dst = setcc_r(dst, CC_Z, FLAG_Z);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3558 dst = setcc_r(dst, CC_S, FLAG_N);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3559 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3560 dst = m68k_save_result(inst, dst, opts);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3561 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3562 if (src_op.mode == MODE_IMMED) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3563 dst = cycles(dst, (inst->extra.size == OPSIZE_LONG ? 8 : 6) + src_op.disp*2);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3564 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3565 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3566 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3567 dst = rcl_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3568 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3569 dst = rcr_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3570 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3571 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3572 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3573 dst = rcl_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3574 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3575 dst = rcr_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3576 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3577 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3578 dst = setcc_r(dst, CC_C, FLAG_C);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3579 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3580 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3581 if (src_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3582 if (src_op.base != SCRATCH1) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3583 dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3584 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3585 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3586 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3587 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3588 dst = and_ir(dst, 63, SCRATCH1, SZ_D);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3589 zero_off = dst+1;
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3590 dst = jcc(dst, CC_Z, dst+2);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3591 dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3592 dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3593 dst = cmp_ir(dst, 32, SCRATCH1, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3594 norm_off = dst+1;
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3595 dst = jcc(dst, CC_L, dst+2);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3596 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3597 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3598 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3599 dst = rcl_ir(dst, 31, dst_op.base, inst->extra.size);
301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3600 dst = rcl_ir(dst, 1, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3601 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3602 dst = rcr_ir(dst, 31, dst_op.base, inst->extra.size);
301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3603 dst = rcr_ir(dst, 1, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3604 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3605 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3606 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3607 dst = rcl_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3608 dst = rcl_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3609 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3610 dst = rcr_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3611 dst = rcr_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3612 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3613 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3614 dst = sub_ir(dst, 32, SCRATCH1, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3615 *norm_off = dst - (norm_off+1);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3616 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3617 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3618 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3619 dst = rcl_clr(dst, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3620 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3621 dst = rcr_clr(dst, dst_op.base, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3622 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3623 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3624 if (inst->op == M68K_ROXL) {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3625 dst = rcl_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3626 } else {
157 301470eb870b Fix rotate instructions that use a register source. Fix ROXL/ROXR to actually use the appropriate x86 instruction. Mike Pavone <pavone@retrodev.com> parents: 156 diff changeset	3627 dst = rcr_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3628 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3629 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3630 dst = setcc_r(dst, CC_C, FLAG_C);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3631 dst = mov_rr(dst, FLAG_C, CONTEXT, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3632 end_off = dst + 1;
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3633 dst = jmp(dst, dst+2);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3634 *zero_off = dst - (zero_off+1);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3635 //Carry flag is set to X flag when count is 0, this is different from ROR/ROL
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3636 dst = mov_rindr(dst, CONTEXT, FLAG_C, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3637 *end_off = dst - (end_off+1);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3638 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3639 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3640 dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3641 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3642 dst = cmp_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3643 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3644 dst = setcc_r(dst, CC_Z, FLAG_Z);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3645 dst = setcc_r(dst, CC_S, FLAG_N);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3646 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3647 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3648 case M68K_RTE:
170 7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3649 //TODO: Trap if not in system mode
175 7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3650 //Read saved SR
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3651 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3652 dst = call(dst, (uint8_t *)m68k_read_word_scratch1);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3653 dst = add_ir(dst, 2, opts->aregs[7], SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3654 dst = call(dst, (uint8_t *)set_sr);
178 48eb62ba63bc Fix order of reading saved pc and swapping user and system stack pointers Mike Pavone <pavone@retrodev.com> parents: 177 diff changeset	3655 //Read saved PC
48eb62ba63bc Fix order of reading saved pc and swapping user and system stack pointers Mike Pavone <pavone@retrodev.com> parents: 177 diff changeset	3656 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
48eb62ba63bc Fix order of reading saved pc and swapping user and system stack pointers Mike Pavone <pavone@retrodev.com> parents: 177 diff changeset	3657 dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
48eb62ba63bc Fix order of reading saved pc and swapping user and system stack pointers Mike Pavone <pavone@retrodev.com> parents: 177 diff changeset	3658 dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
175 7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3659 //Check if we've switched to user mode and swap stack pointers if needed
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3660 dst = bt_irdisp8(dst, 5, CONTEXT, offsetof(m68k_context, status), SZ_B);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3661 end_off = dst+1;
121 f848aad2abef Fix logic for switching between USP and SSP Mike Pavone <pavone@retrodev.com> parents: 119 diff changeset	3662 dst = jcc(dst, CC_C, dst+2);
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3663 dst = mov_rr(dst, opts->aregs[7], SCRATCH2, SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3664 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, opts->aregs[7], SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3665 dst = mov_rrdisp8(dst, SCRATCH2, CONTEXT, offsetof(m68k_context, aregs) + sizeof(uint32_t) * 8, SZ_D);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3666 *end_off = dst - (end_off+1);
175 7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3667 //Get native address, sync components, recalculate integer points and jump to returned address
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3668 dst = call(dst, (uint8_t *)m68k_native_addr_and_sync);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3669 dst = jmp_r(dst, SCRATCH1);
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3670 break;
170 7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3671 case M68K_RTR:
175 7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3672 //Read saved CCR
170 7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3673 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3674 dst = call(dst, (uint8_t *)m68k_read_word_scratch1);
7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3675 dst = add_ir(dst, 2, opts->aregs[7], SZ_D);
7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3676 dst = call(dst, (uint8_t *)set_ccr);
175 7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3677 //Read saved PC
7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3678 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3679 dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3680 dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3681 //Get native address and jump to it
7504200cac86 Fix order of SR and PC saved in an exception stack frame Mike Pavone <pavone@retrodev.com> parents: 174 diff changeset	3682 dst = call(dst, (uint8_t *)m68k_native_addr);
170 7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3683 dst = jmp_r(dst, SCRATCH1);
7d1b04537377 Implement RTR Mike Pavone <pavone@retrodev.com> parents: 169 diff changeset	3684 break;
194 811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3685 case M68K_SBCD:
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3686 if (src_op.base != SCRATCH2) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3687 if (src_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3688 dst = mov_rr(dst, src_op.base, SCRATCH2, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3689 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3690 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH2, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3691 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3692 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3693 if (dst_op.base != SCRATCH1) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3694 if (dst_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3695 dst = mov_rr(dst, dst_op.base, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3696 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3697 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3698 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3699 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3700 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3701 dst = jcc(dst, CC_NC, dst+5);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3702 dst = sub_ir(dst, 1, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3703 dst = call(dst, (uint8_t *)bcd_sub);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3704 dst = mov_rr(dst, CH, FLAG_C, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3705 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3706 dst = cmp_ir(dst, 0, SCRATCH1, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3707 dst = jcc(dst, CC_Z, dst+4);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3708 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3709 if (dst_op.base != SCRATCH1) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3710 if (dst_op.mode == MODE_REG_DIRECT) {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3711 dst = mov_rr(dst, SCRATCH1, dst_op.base, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3712 } else {
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3713 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_B);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3714 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3715 }
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3716 dst = m68k_save_result(inst, dst, opts);
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3717 break;
811163790e6c Implement ABCD an SBCD. Fix BTEST with register source. Mike Pavone <pavone@retrodev.com> parents: 193 diff changeset	3718 /*case M68K_STOP:
70 cebd0b5ac7f0 Make the translator bail out if it hits an instruction I haven't implemented yet Mike Pavone <pavone@retrodev.com> parents: 67 diff changeset	3719 break;*/
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3720 case M68K_SUB:
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3721 size = inst->dst.addr_mode == MODE_AREG ? OPSIZE_LONG : inst->extra.size;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3722 dst = cycles(dst, BUS);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3723 if (src_op.mode == MODE_REG_DIRECT) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3724 if (dst_op.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3725 dst = sub_rr(dst, src_op.base, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3726 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3727 dst = sub_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3728 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3729 } else if (src_op.mode == MODE_REG_DISPLACE8) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3730 dst = sub_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3731 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3732 if (dst_op.mode == MODE_REG_DIRECT) {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3733 dst = sub_ir(dst, src_op.disp, dst_op.base, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3734 } else {
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3735 dst = sub_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, size);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3736 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3737 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3738 if (inst->dst.addr_mode != MODE_AREG) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3739 dst = setcc_r(dst, CC_C, FLAG_C);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3740 dst = setcc_r(dst, CC_Z, FLAG_Z);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3741 dst = setcc_r(dst, CC_S, FLAG_N);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3742 dst = setcc_r(dst, CC_O, FLAG_V);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3743 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3744 }
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3745 dst = m68k_save_result(inst, dst, opts);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3746 break;
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3747 case M68K_SUBX:
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3748 dst = cycles(dst, BUS);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3749 dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3750 if (src_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3751 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3752 dst = sbb_rr(dst, src_op.base, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3753 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3754 dst = sbb_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3755 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3756 } else if (src_op.mode == MODE_REG_DISPLACE8) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3757 dst = sbb_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3758 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3759 if (dst_op.mode == MODE_REG_DIRECT) {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3760 dst = sbb_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3761 } else {
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3762 dst = sbb_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3763 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3764 }
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3765 dst = setcc_r(dst, CC_C, FLAG_C);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3766 dst = jcc(dst, CC_Z, dst+4);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3767 dst = mov_ir(dst, 0, FLAG_Z, SZ_B);
146 5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3768 dst = setcc_r(dst, CC_S, FLAG_N);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3769 dst = setcc_r(dst, CC_O, FLAG_V);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3770 dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3771 dst = m68k_save_result(inst, dst, opts);
5416a5c4628e Implement most of the "X" instructions Mike Pavone <pavone@retrodev.com> parents: 133 diff changeset	3772 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3773 case M68K_SWAP:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3774 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3775 if (src_op.mode == MODE_REG_DIRECT) {
129 691e4b147cea Fix swap Mike Pavone <pavone@retrodev.com> parents: 128 diff changeset	3776 dst = rol_ir(dst, 16, src_op.base, SZ_D);
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3777 } else{
129 691e4b147cea Fix swap Mike Pavone <pavone@retrodev.com> parents: 128 diff changeset	3778 dst = rol_irdisp8(dst, 16, src_op.base, src_op.disp, SZ_D);
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3779 }
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3780 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3781 dst = setcc_r(dst, CC_Z, FLAG_Z);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3782 dst = setcc_r(dst, CC_S, FLAG_N);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3783 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3784 break;
152 79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	3785 //case M68K_TAS:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3786 case M68K_TRAP:
152 79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	3787 dst = mov_ir(dst, src_op.disp, SCRATCH2, SZ_D);
183 2f08d9e90a4c Fix (a7)+ src when size is byte, fix trap return address, make div with areg src decoded to invalid Mike Pavone <pavone@retrodev.com> parents: 182 diff changeset	3788 dst = mov_ir(dst, inst->address+2, SCRATCH1, SZ_D);
152 79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	3789 dst = jmp(dst, (uint8_t *)m68k_trap);
79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	3790 break;
79958b95526f Implement TRAP (untested) Mike Pavone <pavone@retrodev.com> parents: 151 diff changeset	3791 //case M68K_TRAPV:
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3792 case M68K_TST:
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3793 dst = cycles(dst, BUS);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3794 if (src_op.mode == MODE_REG_DIRECT) {
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3795 dst = cmp_ir(dst, 0, src_op.base, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3796 } else { //M68000 doesn't support immedate operand for tst, so this must be MODE_REG_DISPLACE8
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3797 dst = cmp_irdisp8(dst, 0, src_op.base, src_op.disp, inst->extra.size);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3798 }
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3799 dst = mov_ir(dst, 0, FLAG_C, SZ_B);
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3800 dst = setcc_r(dst, CC_Z, FLAG_Z);
d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3801 dst = setcc_r(dst, CC_S, FLAG_N);
181 3b4ef459aa8d Fix signed division with negative result, fix address reg destination with word-sized operand, fix cmpm decoding and code generation, fix unbalanced pop in bit instructions Mike Pavone <pavone@retrodev.com> parents: 179 diff changeset	3802 dst = mov_ir(dst, 0, FLAG_V, SZ_B);
49 d2e43d64e999 Add untested support for and, eor, or, swap, tst and nop instructions. Add call to m68k_save_result for add and sub so that they will properly save results for memory destinations Mike Pavone <pavone@retrodev.com> parents: 46 diff changeset	3803 break;
78 463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3804 case M68K_UNLK:
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3805 dst = cycles(dst, BUS);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3806 if (dst_op.mode == MODE_REG_DIRECT) {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3807 dst = mov_rr(dst, dst_op.base, opts->aregs[7], SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3808 } else {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3809 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, opts->aregs[7], SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3810 }
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3811 dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3812 dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3813 if (dst_op.mode == MODE_REG_DIRECT) {
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3814 dst = mov_rr(dst, SCRATCH1, dst_op.base, SZ_D);
463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3815 } else {
93 f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	3816 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, SZ_D);
78 463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3817 }
93 f63b0e58e2d5 Implement EXT, add some fixes to LINK/UNLK Mike Pavone <pavone@retrodev.com> parents: 92 diff changeset	3818 dst = add_ir(dst, 4, opts->aregs[7], SZ_D);
78 463641032588 Added untested support for LINK and UNLK Mike Pavone <pavone@retrodev.com> parents: 77 diff changeset	3819 break;
70 cebd0b5ac7f0 Make the translator bail out if it hits an instruction I haven't implemented yet Mike Pavone <pavone@retrodev.com> parents: 67 diff changeset	3820 default:
151 6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3821 m68k_disasm(inst, disasm_buf);
6b593ea0ed90 Implement MULU/MULS and DIVU/DIVS Mike Pavone <pavone@retrodev.com> parents: 150 diff changeset	3822 printf("%X: %s\ninstruction %d not yet implemented\n", inst->address, disasm_buf, inst->op);
70 cebd0b5ac7f0 Make the translator bail out if it hits an instruction I haven't implemented yet Mike Pavone <pavone@retrodev.com> parents: 67 diff changeset	3823 exit(1);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3824 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3825 return dst;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3826 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	3827
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3828 uint8_t * translate_m68k_stream(uint32_t address, m68k_context * context)
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3829 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3830 m68kinst instbuf;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3831 x86_68k_options * opts = context->options;
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3832 uint8_t * dst = opts->cur_code;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3833 uint8_t * dst_end = opts->code_end;
188 062e3aa549eb Fix movem.w when dest is register list Mike Pavone <pavone@retrodev.com> parents: 187 diff changeset	3834 address &= 0xFFFFFF;
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3835 if(get_native_address(opts->native_code_map, address)) {
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3836 return dst;
6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	3837 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3838 char disbuf[1024];
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3839 uint16_t encoded, next;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3840 if ((address & 0xFFFFFF) < 0x400000) {
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3841 encoded = context->mem_pointers[0] + (address & 0xFFFFFF)/2;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3842 } else if ((address & 0xFFFFFF) > 0xE00000) {
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3843 encoded = context->mem_pointers[1] + (address & 0xFFFF)/2;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3844 } else {
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3845 printf("attempt to translate non-memory address: %X\n", address);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3846 exit(1);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3847 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3848 do {
197 7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 196 diff changeset	3849 if (opts->address_log) {
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 196 diff changeset	3850 fprintf(opts->address_log, "%X\n", address);
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 196 diff changeset	3851 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3852 do {
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3853 if (dst_end-dst < MAX_NATIVE_SIZE) {
102 bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3854 if (dst_end-dst < 5) {
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3855 puts("out of code memory, not enough space for jmp to next chunk");
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3856 exit(1);
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3857 }
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3858 size_t size = 1024*1024;
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3859 opts->cur_code = alloc_code(&size);
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3860 opts->code_end = opts->cur_code + size;
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3861 jmp(dst, opts->cur_code);
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3862 dst = opts->cur_code;
bfaca67eeb78 allocate a new native code chunk when we run out of space Mike Pavone <pavone@retrodev.com> parents: 100 diff changeset	3863 dst_end = opts->code_end;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3864 }
159 c1530501c215 FIx movem when src is reg list and dst is not a areg predec mode Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	3865 if (address >= 0x400000 && address < 0xE00000) {
c1530501c215 FIx movem when src is reg list and dst is not a areg predec mode Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	3866 dst = xor_rr(dst, RDI, RDI, SZ_D);
c1530501c215 FIx movem when src is reg list and dst is not a areg predec mode Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	3867 dst = call(dst, (uint8_t *)exit);
c1530501c215 FIx movem when src is reg list and dst is not a areg predec mode Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	3868 break;
c1530501c215 FIx movem when src is reg list and dst is not a areg predec mode Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	3869 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3870 uint8_t * existing = get_native_address(opts->native_code_map, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3871 if (existing) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3872 dst = jmp(dst, existing);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3873 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3874 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3875 next = m68k_decode(encoded, &instbuf, address);
208 3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	3876 if (instbuf.op == M68K_INVALID) {
3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	3877 instbuf.src.params.immed = *encoded;
3457dc6fd558 Tweaks to make blastem compatible with m68k-tester Mike Pavone <pavone@retrodev.com> parents: 207 diff changeset	3878 }
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	3879 uint16_t m68k_size = (next-encoded)*2;
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	3880 address += m68k_size;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3881 encoded = next;
150 3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3882 //m68k_disasm(&instbuf, disbuf);
3e68e517cc01 Do a sync when interrupt mask changes so we can recompute the next interrupt cycle. Also fix a bug in which the SR part of ORI to SR was not being performed. Mike Pavone <pavone@retrodev.com> parents: 146 diff changeset	3883 //printf("%X: %s\n", instbuf.address, disbuf);
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	3884 uint8_t * after = translate_m68k(dst, &instbuf, opts);
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	3885 map_native_address(context, instbuf.address, dst, m68k_size, after-dst);
1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	3886 dst = after;
216 0b5ec22dcda2 Fix some bugs related to sign-extension of address registers and pre-decrement amount for a7 when used as a source. Mike Pavone <pavone@retrodev.com> parents: 213 diff changeset	3887 } while(instbuf.op != M68K_ILLEGAL && instbuf.op != M68K_RESET && instbuf.op != M68K_INVALID && instbuf.op != M68K_TRAP && instbuf.op != M68K_RTS && instbuf.op != M68K_RTR && instbuf.op != M68K_RTE && !(instbuf.op == M68K_BCC && instbuf.extra.cond == COND_TRUE) && instbuf.op != M68K_JMP);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3888 process_deferred(opts);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3889 if (opts->deferred) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3890 address = opts->deferred->address;
124 da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3891 if ((address & 0xFFFFFF) < 0x400000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3892 encoded = context->mem_pointers[0] + (address & 0xFFFFFF)/2;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3893 } else if ((address & 0xFFFFFF) > 0xE00000) {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3894 encoded = context->mem_pointers[1] + (address & 0xFFFF)/2;
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3895 } else {
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3896 printf("attempt to translate non-memory address: %X\n", address);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3897 exit(1);
da95566514f3 Some fixes for translating code in located in RAM Mike Pavone <pavone@retrodev.com> parents: 123 diff changeset	3898 }
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3899 } else {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3900 encoded = NULL;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3901 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3902 } while(encoded != NULL);
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3903 opts->cur_code = dst;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3904 return dst;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3905 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	3906
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3907 uint8_t * get_native_address_trans(m68k_context * context, uint32_t address)
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3908 {
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3909 address &= 0xFFFFFF;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3910 uint8_t * ret = get_native_address(context->native_code_map, address);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3911 if (!ret) {
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3912 translate_m68k_stream(address, context);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3913 ret = get_native_address(context->native_code_map, address);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3914 }
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3915 return ret;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3916 }
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	3917
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3918 void * m68k_retranslate_inst(uint32_t address, m68k_context * context)
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3919 {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3920 x86_68k_options * opts = context->options;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3921 uint8_t orig_size = get_native_inst_size(opts, address);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3922 uint8_t * orig_start = get_native_address(context->native_code_map, address);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3923 uint32_t orig = address;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3924 address &= 0xFFFF;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3925 uint8_t * dst = opts->cur_code;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3926 uint8_t * dst_end = opts->code_end;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3927 uint16_t after, inst = context->mem_pointers[1] + address/2;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3928 m68kinst instbuf;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3929 after = m68k_decode(inst, &instbuf, orig);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3930 if (orig_size != MAX_NATIVE_SIZE) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3931 if (dst_end - dst < 128) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3932 size_t size = 1024*1024;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3933 dst = alloc_code(&size);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3934 opts->code_end = dst_end = dst + size;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3935 opts->cur_code = dst;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3936 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3937 uint8_t * native_end = translate_m68k(dst, &instbuf, opts);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3938 if ((native_end - dst) <= orig_size) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3939 native_end = translate_m68k(orig_start, &instbuf, opts);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3940 while (native_end < orig_start + orig_size) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3941 *(native_end++) = 0x90; //NOP
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3942 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3943 return orig_start;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3944 } else {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3945 map_native_address(context, instbuf.address, dst, (after-inst)*2, MAX_NATIVE_SIZE);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3946 opts->code_end = dst+MAX_NATIVE_SIZE;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3947 if (instbuf.op != M68K_RTS && instbuf.op != M68K_RTE && instbuf.op != M68K_RTR && instbuf.op != M68K_JMP && (instbuf.op != M68K_BCC \|\| instbuf.extra.cond != COND_TRUE)) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3948 jmp(native_end, get_native_address(context->native_code_map, address + (after-inst)*2));
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3949 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3950 return dst;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3951 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3952 } else {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3953 dst = translate_m68k(orig_start, &instbuf, opts);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3954 if (instbuf.op != M68K_RTS && instbuf.op != M68K_RTE && instbuf.op != M68K_RTR && instbuf.op != M68K_JMP && (instbuf.op != M68K_BCC \|\| instbuf.extra.cond != COND_TRUE)) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3955 dst = jmp(dst, get_native_address(context->native_code_map, address + (after-inst)*2));
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3956 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3957 return orig_start;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3958 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3959 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3960
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3961 m68k_context * m68k_handle_code_write(uint32_t address, m68k_context * context)
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3962 {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3963 uint32_t inst_start = get_instruction_start(context->native_code_map, address \| 0xFF0000);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3964 if (inst_start) {
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3965 uint8_t * dst = get_native_address(context->native_code_map, inst_start);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3966 dst = mov_ir(dst, inst_start, SCRATCH2, SZ_D);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3967 dst = jmp(dst, (uint8_t *)m68k_retrans_stub);
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3968 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3969 return context;
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3970 }
c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	3971
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3972 void insert_breakpoint(m68k_context * context, uint32_t address, uint8_t * bp_handler)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3973 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3974 static uint8_t * bp_stub = NULL;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3975 uint8_t * native = get_native_address_trans(context, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3976 uint8_t * start_native = native;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3977 native = mov_ir(native, address, SCRATCH1, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3978 if (!bp_stub) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3979 x86_68k_options * opts = context->options;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3980 uint8_t * dst = opts->cur_code;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3981 uint8_t * dst_end = opts->code_end;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3982 if (dst_end - dst < 128) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3983 size_t size = 1024*1024;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3984 dst = alloc_code(&size);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3985 opts->code_end = dst_end = dst + size;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3986 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3987 bp_stub = dst;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3988 native = call(native, bp_stub);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3989
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3990 //Calculate length of prologue
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3991 dst = check_cycles_int(dst, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3992 int check_int_size = dst-bp_stub;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3993 dst = bp_stub;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3994
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3995 //Save context and call breakpoint handler
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3996 dst = call(dst, (uint8_t *)m68k_save_context);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3997 dst = push_r(dst, SCRATCH1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3998 dst = mov_rr(dst, CONTEXT, RDI, SZ_Q);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	3999 dst = mov_rr(dst, SCRATCH1, RSI, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4000 dst = call(dst, bp_handler);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4001 dst = mov_rr(dst, RAX, CONTEXT, SZ_Q);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4002 //Restore context
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4003 dst = call(dst, (uint8_t *)m68k_load_context);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4004 dst = pop_r(dst, SCRATCH1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4005 //do prologue stuff
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4006 dst = cmp_rr(dst, CYCLES, LIMIT, SZ_D);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4007 uint8_t * jmp_off = dst+1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4008 dst = jcc(dst, CC_NC, dst + 7);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4009 dst = call(dst, (uint8_t *)handle_cycle_limit_int);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4010 *jmp_off = dst - (jmp_off+1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4011 //jump back to body of translated instruction
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4012 dst = pop_r(dst, SCRATCH1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4013 dst = add_ir(dst, check_int_size - (native-start_native), SCRATCH1, SZ_Q);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4014 dst = jmp_r(dst, SCRATCH1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4015 opts->cur_code = dst;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4016 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4017 native = call(native, bp_stub);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4018 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4019 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4020
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4021 void remove_breakpoint(m68k_context * context, uint32_t address)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4022 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4023 uint8_t * native = get_native_address(context->native_code_map, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4024 check_cycles_int(native, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4025 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 183 diff changeset	4026
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4027 void start_68k_context(m68k_context * context, uint32_t address)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4028 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4029 uint8_t * addr = get_native_address(context->native_code_map, address);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4030 m68k_start_context(addr, context);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4031 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4032
19 4717146a7606 Initial support for M68k reset vector, rather than starting at an arbitrary address Mike Pavone <pavone@retrodev.com> parents: 18 diff changeset	4033 void m68k_reset(m68k_context * context)
4717146a7606 Initial support for M68k reset vector, rather than starting at an arbitrary address Mike Pavone <pavone@retrodev.com> parents: 18 diff changeset	4034 {
71 f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	4035 //TODO: Make this actually use the normal read functions
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	4036 context->aregs[7] = context->mem_pointers[0][0] << 16 \| context->mem_pointers[0][1];
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	4037 uint32_t address = context->mem_pointers[0][2] << 16 \| context->mem_pointers[0][3];
f80fa1776507 Implement more instructions and address modes Mike Pavone <pavone@retrodev.com> parents: 70 diff changeset	4038 start_68k_context(context, address);
19 4717146a7606 Initial support for M68k reset vector, rather than starting at an arbitrary address Mike Pavone <pavone@retrodev.com> parents: 18 diff changeset	4039 }
4717146a7606 Initial support for M68k reset vector, rather than starting at an arbitrary address Mike Pavone <pavone@retrodev.com> parents: 18 diff changeset	4040
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4041 void init_x86_68k_opts(x86_68k_options * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4042 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4043 opts->flags = 0;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4044 for (int i = 0; i < 8; i++)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4045 opts->dregs[i] = opts->aregs[i] = -1;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4046 opts->dregs[0] = R10;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4047 opts->dregs[1] = R11;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4048 opts->dregs[2] = R12;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4049 opts->aregs[0] = R13;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4050 opts->aregs[1] = R14;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4051 opts->aregs[7] = R15;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4052 opts->native_code_map = malloc(sizeof(native_map_slot) * NATIVE_MAP_CHUNKS);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4053 memset(opts->native_code_map, 0, sizeof(native_map_slot) * NATIVE_MAP_CHUNKS);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4054 opts->deferred = NULL;
95 dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	4055 size_t size = 1024 * 1024;
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	4056 opts->cur_code = alloc_code(&size);
dd3c680c618c Initial work on allowing dynamic branches and code in RAM plus a small fix to effective address decoding Mike Pavone <pavone@retrodev.com> parents: 93 diff changeset	4057 opts->code_end = opts->cur_code + size;
192 1db07e112bf7 Prep work for handling games that modify code in RAM Mike Pavone <pavone@retrodev.com> parents: 188 diff changeset	4058 opts->ram_inst_sizes = malloc(sizeof(uint8_t ) 64);
193 c66e4636f991 Implement support for self-modifying code Mike Pavone <pavone@retrodev.com> parents: 192 diff changeset	4059 memset(opts->ram_inst_sizes, 0, sizeof(uint8_t ) 64);
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4060 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4061
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4062 void init_68k_context(m68k_context * context, native_map_slot * native_code_map, void * opts)
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4063 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4064 memset(context, 0, sizeof(m68k_context));
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4065 context->native_code_map = native_code_map;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4066 context->options = opts;
82 6331ddec228f Initial stab at interrupt support. Make native code offsets bigger so I don't have to worry about overflowing the offset. Implement neg and not (untested). Mike Pavone <pavone@retrodev.com> parents: 81 diff changeset	4067 context->int_cycle = 0xFFFFFFFF;
167 f6c7fea1ecf7 Initialize status register to proper value on startup Mike Pavone <pavone@retrodev.com> parents: 165 diff changeset	4068 context->status = 0x27;
18 3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4069 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	4070

Mercurial > repos > blastem

annotate m68k_to_x86.c @ 216:0b5ec22dcda2