repos/blastem: m68k_to_x86.c annotate

annotate m68k_to_x86.c @ 18:3e7bfde7606e

M68K to x86 translation works for a limited subset of instructions and addressing modes

author	Mike Pavone <pavone@retrodev.com>
date	Tue, 04 Dec 2012 19:13:12 -0800
parents	2bdad0f52f42
children	4717146a7606

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"
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	3 #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	4 #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	5 #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	6 #include <string.h>
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	7
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	8 #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	9 #define PREDEC_PENALTY 2
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	10 #define CYCLES RAX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	11 #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	12 #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	13 #define SCRATCH2 RDI
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	14 #define CONTEXT RSI
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	15
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	16 #define FLAG_N RBX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	17 #define FLAG_V BH
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	18 #define FLAG_Z RDX
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	19 #define FLAG_C DH
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	20
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	21 typedef struct {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	22 int32_t disp;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	23 uint8_t mode;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	24 uint8_t base;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	25 uint8_t index;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	26 uint8_t cycles;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	27 } x86_ea;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	28
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	29 void handle_cycle_limit();
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	30 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	31 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	32 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	33 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	34 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	35 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	36 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	37 void 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	38 void m68k_modified_ret_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	39 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	40
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	41 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	42 {
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	43 dst = add_ir(dst, num, CYCLES, SZ_D);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	44 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	45
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	46 uint8_t * check_cycles(uint8_t * dst)
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	47 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	48 dst = cmp_rr(dst, CYCLES, LIMIT, 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	49 dst = jcc(dst, CC_G, dst+7);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	50 dst = call(dst, (char *)handle_cycle_limit);
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	51 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	52
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	53 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	54 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	55 if (op->addr_mode == MODE_REG) {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	56 return opts->dregs[op->params.regs.pri];
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	57 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	58 if (op->addr_mode == MODE_AREG) {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	59 return opts->aregs[op->params.regs.pri];
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	60 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 return -1;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	62 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	63
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	64 void print_regs_exit(m68k_context * context)
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	65 {
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	66 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	67 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	68 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	69 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	70 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	71 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	72 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	73 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	74
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	75 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	76 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	77 int8_t reg = native_reg(&(inst->src), 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	78 int32_t dec_amount,inc_amount;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	79 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	80 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	81 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	82 return out;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	83 }
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	84 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	85 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	86 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	87 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	88 //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	89 //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	90 reg = native_reg(&(inst->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	91 if (reg >= 0 \|\| inst->dst.addr_mode == MODE_UNUSED \|\| (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode == 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	92 \|\| inst->op == M68K_EXG) {
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
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 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	95 ea->base = 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	96 ea->disp = (inst->src.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->src.params.regs.pri;
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 } 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	98 out = mov_rdisp8r(out, CONTEXT, (inst->src.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->src.params.regs.pri, 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	99 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	100 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	101 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	102 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	103 case MODE_AREG_PREDEC:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	104 dec_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	105 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	106 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	107 out = sub_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	108 } 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	109 out = sub_irdisp8(out, inc_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	110 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	111 out = check_cycles(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	112 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	113 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	114 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	115 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	116 } 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	117 out = mov_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	118 }
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 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	120 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	121 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	122 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	123 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	124 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	125 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	126 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	127 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	128 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	129 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	130 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	131
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	132 if (inst->src.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	133 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	134 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	135 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	136 } 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	137 out = add_irdisp8(out, inc_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	138 }
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 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	140 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	141 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	142 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	143 case MODE_IMMEDIATE:
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 if (inst->variant != VAR_QUICK) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	145 if (inst->extra.size == 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	146 out = cycles(out, 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	147 out = check_cycles(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	148 }
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 out = cycles(out, 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	150 out = check_cycles(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	151 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	152 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	153 ea->disp = inst->src.params.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	154 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	155 default:
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 printf("address mode %d not implemented (src)\n", 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	157 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	158 }
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 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	160 }
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
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 uint8_t * translate_m68k_dst(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	163 {
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 int8_t reg = native_reg(&(inst->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	165 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	166 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	167 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	168 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	169 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	170 }
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 switch (inst->dst.addr_mode)
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	172 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	173 case MODE_REG:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	174 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	175 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	176 ea->base = 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	177 ea->disp = (inst->dst.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->dst.params.regs.pri;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	178 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	179 case MODE_AREG_PREDEC:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	180 dec_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	181 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	182 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	183 } 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	184 out = sub_irdisp8(out, dec_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	185 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	186 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	187 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	188 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	189 out = mov_rr(out, opts->aregs[inst->dst.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	190 } 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	191 out = mov_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->dst.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	192 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	193 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	194 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	195 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	196 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	197 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	198 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	199 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	200 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	201 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	202 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	203 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	204 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	205 //save reg value in SCRATCH2 so we can use it to save the result in memory later
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	206 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	207 out = mov_rr(out, 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	208 } 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	209 out = mov_rdisp8r(out, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	210 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	211
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	212 if (inst->src.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	213 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	214 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	215 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	216 } 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	217 out = add_irdisp8(out, inc_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	218 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	219 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	220 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	221 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	222 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	223 default:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	224 printf("address mode %d not implemented (dst)\n", 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	225 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	226 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	227 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	228 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	229
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	230 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	231 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	232 if (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode != 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	233 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	234 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	235 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	236 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	237 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	238 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	239 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	240 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	241 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	242 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	243 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	244 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	245 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	246 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	247 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	248
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	249 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	250 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	251 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	252 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	253 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	254 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	255 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	256 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	257 if (native_code_map[chunk].offsets[offset] == INVALID_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	258 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	259 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	260 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	261 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	262
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	263 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	264 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	265 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	266 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	267 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	268 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	269 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	270 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	271
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	272 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	273 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	274 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	275 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	276 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	277 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	278 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	279 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	280 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	281 printf("Native dest: %p, Offset address: %p, displacement: %X\n", native, cur->dest, 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	282 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	283 *(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	284 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	285 *(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	286 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	287 *(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	288 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	289 *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	290 *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	291 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	292 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	293 } 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	294 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	295 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	296 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	297 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	298 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	299
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	300 void map_native_address(native_map_slot * native_code_map, uint32_t address, uint8_t * native_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	301 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	302 //FIXME: This probably isn't going to work with real code in a lot of cases, no guarantee that
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	303 //all the code in 1KB block is going to be translated at the same time
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	304 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	305 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	306 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	307 native_code_map[chunk].base = native_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	308 native_code_map[chunk].offsets = malloc(sizeof(uint16_t) * 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	309 memset(native_code_map[chunk].offsets, 0xFF, sizeof(uint16_t) * 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	310 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	311 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	312 native_code_map[chunk].offsets[offset] = native_addr-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	313 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	314
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	315 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	316 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	317 int8_t reg, flags_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	318 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	319 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	320 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	321 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	322 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	323 reg = native_reg(&(inst->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	324 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	325 flags_reg = src.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	326 } 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	327 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	328 flags_reg = 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	329 } 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	330 printf("moving %d to temp register %d\n", src.disp, 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	331 dst = mov_ir(dst, src.disp, 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	332 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	333 flags_reg = 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	334 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	335 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	336 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	337 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	338 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	339 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	340 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	341 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	342 dst = mov_rr(dst, src.base, reg, 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	343 } 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	344 dst = mov_rdisp8r(dst, src.base, src.disp, reg, 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	345 } 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	346 dst = mov_ir(dst, src.disp, reg, 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	347 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	348 } else 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	349 printf("mov_rrdisp8 from reg %d to offset %d from reg %d (%d)\n", src.base, (inst->dst.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->dst.params.regs.pri, CONTEXT, inst->dst.params.regs.pri);
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 dst = mov_rrdisp8(dst, src.base, CONTEXT, (inst->dst.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->dst.params.regs.pri, 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	351 } 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	352 dst = mov_irdisp8(dst, src.disp, CONTEXT, (inst->dst.addr_mode == MODE_REG ? offsetof(m68k_context, dregs) : offsetof(m68k_context, aregs)) + 4 * inst->dst.params.regs.pri, 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	353 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	354 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	355 case MODE_AREG_PREDEC:
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 dec_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	357 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	358 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	359 } 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	360 dst = sub_irdisp8(dst, dec_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	361 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	362 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	363 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	364 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	365 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	366 } 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	367 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	368 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	369 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	370 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	371 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	372 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	373 } 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	374 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	375 } 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	376 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	377 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	378 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	379 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	380 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	381 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	382 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	383 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	384 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	385 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	386 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	387 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	388 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	389 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	390 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	391 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	392 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	393 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	394 } 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	395 dst = add_irdisp8(dst, inc_amount, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	396 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	397 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	398 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	399 default:
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 printf("address mode %d not implemented (move dst)\n", 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	401 exit(1);
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	402 }
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	403
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 //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	405 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	406 //update flags
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	407 dst = mov_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	408 dst = mov_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	409 dst = cmp_ir(dst, 0, flags_reg, 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	410 dst = setcc_r(dst, CC_Z, FLAG_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	411 dst = setcc_r(dst, CC_S, FLAG_N);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	412 dst = check_cycles(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	413 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	414 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	415
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	416 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	417 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	418 int8_t dst_reg = native_reg(&(inst->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	419 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	420 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	421 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	422 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	423 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	424 if (dst_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	425 dst = mov_rr(dst, opts->aregs[inst->src.params.regs.pri], dst_reg, 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	426 } 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	427 dst = mov_rrdisp8(dst, opts->aregs[inst->src.params.regs.pri], CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	428 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	429 } 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	430 if (dst_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	431 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * inst->src.params.regs.pri, dst_reg, 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	432 } 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	433 dst = mov_rdisp8r(dst, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	434 dst = mov_rrdisp8(dst, SCRATCH1, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	435 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	436 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	437 dst = check_cycles(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	438 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	439 case MODE_ABSOLUTE:
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	440 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	441 dst = check_cycles(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	442 case MODE_ABSOLUTE_SHORT:
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 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	444 dst = check_cycles(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	445 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	446 if (dst_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	447 dst = mov_ir(dst, inst->src.params.immed, dst_reg, 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	448 } 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	449 dst = mov_irdisp8(dst, inst->src.params.immed, CONTEXT, offsetof(m68k_context, aregs) + 4 * 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	450 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	451 dst = check_cycles(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	452 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	453 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	454 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	455 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	456
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	457 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	458 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	459 //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	460 int32_t disp = inst->src.params.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	461 uint32_t after = inst->address + (inst->variant == VAR_BYTE ? 2 : (inst->variant == VAR_WORD ? 4 : 6));
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	462 dst = mov_ir(dst, after, 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	463 dst = push_r(dst, 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	464 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	465 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	466 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	467 printf("bsr@%X: after=%X, disp=%X, dest=%X\n", inst->address, after, disp, 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	468 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	469 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	470 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	471 //dummy address to be replaced later
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	472 dest_addr = dst + 5;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	473 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	474 dst = call(dst, (char *)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	475 //would add_ir(dst, 8, RSP, SZ_Q) be faster here?
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	476 dst = pop_r(dst, 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	477 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	478 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	479
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	480 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	481 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	482 //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	483 int32_t disp = inst->src.params.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	484 uint32_t after = inst->address + (inst->variant == VAR_BYTE ? 2 : (inst->variant == VAR_WORD ? 4 : 6));
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	485 printf("bcc@%X: after=%X, disp=%X, dest=%X\n", inst->address, after, disp, 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	486 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	487 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	488 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	489 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	490 //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	491 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	492 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	493 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	494 } 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	495 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	496 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	497 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	498 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	499 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	500 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	501 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	502 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	503 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	504 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	505 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	506 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	507 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	508 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	509 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	510 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	511 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	512 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	513 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	514 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	515 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	516 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	517 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	518 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	519 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	520 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	521 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	522 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	523 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	524 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	525 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	526 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	527 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	528 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	529 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	530 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	531 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	532 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	533 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	534 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	535 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	536 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	537 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	538 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	539 //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	540 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	541 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	542 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	543 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	544 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	545 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	546
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	547 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	548 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	549 //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	550 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	551 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	552 dst = call(dst, (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	553 dst = cmp_rdisp8r(dst, RSP, 8, 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	554 dst = jcc(dst, CC_NZ, dst+3);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	555 dst = retn(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	556 dst = jmp(dst, (char *)m68k_modified_ret_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	557 return dst;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	558 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	559
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	560 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	561 {
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	562 map_native_address(opts->native_code_map, inst->address, 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	563 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	564 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	565 } 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	566 return translate_m68k_lea(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	567 } 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	568 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	569 } 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	570 return translate_m68k_bcc(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	571 } 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	572 return translate_m68k_rts(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	573 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	574 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	575 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	576 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	577 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	578 if (inst->dst.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	579 dst = translate_m68k_dst(inst, &dst_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	580 }
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	581 switch(inst->op)
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	582 {
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	583 case M68K_ABCD:
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	584 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	585 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	586 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	587 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	588 if (dst_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	589 dst = add_rr(dst, src_op.base, dst_op.base, 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	590 } 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	591 dst = add_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, 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	592 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	593 } else if (src_op.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	594 dst = add_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, 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	595 } 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	596 if (dst_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	597 dst = add_ir(dst, src_op.disp, dst_op.base, 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	598 } 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	599 dst = add_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, 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	600 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	601 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	602 dst = setcc_r(dst, CC_C, FLAG_C);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	603 dst = setcc_r(dst, CC_Z, FLAG_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	604 dst = setcc_r(dst, CC_S, FLAG_N);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	605 dst = setcc_r(dst, CC_O, FLAG_V);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	606 dst = mov_rrind(dst, FLAG_C, CONTEXT, 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	607 dst = check_cycles(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	608 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	609 case M68K_ADDX:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	610 case M68K_AND:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	611 case M68K_ANDI_CCR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	612 case M68K_ANDI_SR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	613 case M68K_ASL:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	614 case M68K_ASR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	615 case M68K_BCC:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	616 case M68K_BCHG:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	617 case M68K_BCLR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	618 case M68K_BSET:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	619 case M68K_BSR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	620 case M68K_BTST:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	621 case M68K_CHK:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	622 case M68K_CLR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	623 case M68K_CMP:
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	624 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	625 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	626 if (dst_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	627 dst = cmp_rr(dst, src_op.base, dst_op.base, 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	628 } 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	629 dst = cmp_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, 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	630 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	631 } else if (src_op.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	632 dst = cmp_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, 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	633 } 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	634 if (dst_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	635 dst = cmp_ir(dst, src_op.disp, dst_op.base, 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	636 } 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	637 dst = cmp_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, 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	638 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	639 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	640 dst = setcc_r(dst, CC_C, FLAG_C);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	641 dst = setcc_r(dst, CC_Z, FLAG_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	642 dst = setcc_r(dst, CC_S, FLAG_N);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	643 dst = setcc_r(dst, CC_O, FLAG_V);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	644 dst = check_cycles(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	645 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	646 case M68K_DBCC:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	647 case M68K_DIVS:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	648 case M68K_DIVU:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	649 case M68K_EOR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	650 case M68K_EORI_CCR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	651 case M68K_EORI_SR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	652 case M68K_EXG:
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	653 dst = cycles(dst, 6);
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 if (dst_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	655 dst = mov_rr(dst, dst_op.base, 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	656 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	657 dst = mov_rr(dst, src_op.base, dst_op.base, 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	658 dst = mov_rr(dst, SCRATCH2, src_op.base, 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	659 } 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	660 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, 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	661 dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, 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	662 }
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 } 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	664 dst = mov_rdisp8r(dst, dst_op.base, dst_op.disp, 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	665 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	666 dst = mov_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, 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	667 dst = mov_rr(dst, SCRATCH2, src_op.base, 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	668 } 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	669 dst = mov_rdisp8r(dst, src_op.base, src_op.disp, 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	670 dst = mov_rrdisp8(dst, SCRATCH1, dst_op.base, dst_op.disp, 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	671 dst = mov_rrdisp8(dst, SCRATCH2, src_op.base, src_op.disp, 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	672 }
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 }
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 dst = check_cycles(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	675 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	676 case M68K_EXT:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	677 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	678 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	679 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	680 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	681 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	682 case M68K_JMP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	683 case M68K_JSR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	684 case M68K_LEA:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	685 case M68K_LINK:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	686 case M68K_LSL:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	687 case M68K_LSR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	688 case M68K_MOVE_CCR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	689 case M68K_MOVE_FROM_SR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	690 case M68K_MOVE_SR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	691 case M68K_MOVE_USP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	692 case M68K_MOVEM:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	693 case M68K_MOVEP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	694 case M68K_MULS:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	695 case M68K_MULU:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	696 case M68K_NBCD:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	697 case M68K_NEG:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	698 case M68K_NEGX:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	699 case M68K_NOP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	700 case M68K_NOT:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	701 case M68K_OR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	702 case M68K_ORI_CCR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	703 case M68K_ORI_SR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	704 case M68K_PEA:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	705 case M68K_RESET:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	706 case M68K_ROL:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	707 case M68K_ROR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	708 case M68K_ROXL:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	709 case M68K_ROXR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	710 case M68K_RTE:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	711 case M68K_RTR:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	712 case M68K_RTS:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	713 case M68K_SBCD:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	714 case M68K_SCC:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	715 case M68K_STOP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	716 case M68K_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	717 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	718 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	719 if (dst_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	720 dst = sub_rr(dst, src_op.base, dst_op.base, 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	721 } 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	722 dst = sub_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, 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	723 }
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 } else if (src_op.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	725 dst = sub_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, 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	726 } 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	727 if (dst_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	728 dst = sub_ir(dst, src_op.disp, dst_op.base, 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	729 } 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	730 dst = sub_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, 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	731 }
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 }
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 dst = setcc_r(dst, CC_C, FLAG_C);
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 dst = setcc_r(dst, CC_Z, FLAG_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	735 dst = setcc_r(dst, CC_S, FLAG_N);
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 dst = setcc_r(dst, CC_O, FLAG_V);
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 dst = mov_rrind(dst, FLAG_C, CONTEXT, 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	738 dst = check_cycles(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	739 break;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	740 case M68K_SUBX:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	741 case M68K_SWAP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	742 case M68K_TAS:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	743 case M68K_TRAP:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	744 case M68K_TRAPV:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	745 case M68K_TST:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	746 case M68K_UNLK:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	747 case M68K_INVALID:
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	748 break;
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	749 }
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	750 return dst;
14 2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	751 }
2bdad0f52f42 x86 code gen, initial work on translator Mike Pavone <pavone@retrodev.com> parents: diff changeset	752
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	753 uint8_t * translate_m68k_stream(uint8_t * dst, uint8_t * dst_end, uint32_t address, m68k_context * 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	754 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	755 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	756 x86_68k_options * opts = context->options;
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	757 char disbuf[1024];
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	758 uint16_t encoded = context->mem_pointers[0] + address/2, 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	759 do {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	760 do {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	761 if (dst_end-dst < 128) {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	762 puts("out of code 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	763 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	764 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	765 next = m68k_decode(encoded, &instbuf, 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	766 address += (next-encoded)*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	767 encoded = 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	768 m68k_disasm(&instbuf, disbuf);
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 printf("%X: %s\n", instbuf.address, disbuf);
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	770 dst = translate_m68k(dst, &instbuf, 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	771 } while(instbuf.op != M68K_ILLEGAL && instbuf.op != M68K_RTS && instbuf.op != M68K_RTE && !(instbuf.op == M68K_BCC && instbuf.extra.cond == COND_TRUE) && instbuf.op != M68K_JMP);
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 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	773 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	774 address = opts->deferred->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	775 encoded = context->mem_pointers[0] + address/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	776 } 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	777 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	778 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	779 } while(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	780 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	781 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	782
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	783 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	784 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	785 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	786 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	787 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	788
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	789 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	790 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	791 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	792 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	793 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	794 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	795 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	796 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	797 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	798 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	799 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	800 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	801 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	802 opts->deferred = 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	803 }
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
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	805 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	806 {
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	807 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	808 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	809 context->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	810 }
3e7bfde7606e M68K to x86 translation works for a limited subset of instructions and addressing modes Mike Pavone <pavone@retrodev.com> parents: 14 diff changeset	811

Mercurial > repos > blastem

annotate m68k_to_x86.c @ 18:3e7bfde7606e