annotate m68k_core.c @ 821:21a69dfb6ee7

Implement half carry for a couple of the trivial cases
author Michael Pavone <pavone@retrodev.com>
date Sat, 01 Aug 2015 17:05:51 -0700
parents 0b692b5d154b
children 65f9041b5f17
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1 /*
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2 Copyright 2014 Michael Pavone
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3 This file is part of BlastEm.
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
5 */
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
6 #include "m68k_core.h"
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
7 #include "m68k_internal.h"
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
8 #include "68kinst.h"
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
9 #include "backend.h"
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
10 #include "gen.h"
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
11 #include "util.h"
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
12 #include <stdio.h>
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
13 #include <stddef.h>
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
14 #include <stdlib.h>
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
15 #include <string.h>
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
16
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
17 char disasm_buf[1024];
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
18
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
19 int8_t native_reg(m68k_op_info * op, m68k_options * opts)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
20 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
21 if (op->addr_mode == MODE_REG) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
22 return opts->dregs[op->params.regs.pri];
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
23 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
24 if (op->addr_mode == MODE_AREG) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
25 return opts->aregs[op->params.regs.pri];
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
26 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
27 return -1;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
28 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
29
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
30 size_t dreg_offset(uint8_t reg)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
31 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
32 return offsetof(m68k_context, dregs) + sizeof(uint32_t) * reg;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
33 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
34
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
35 size_t areg_offset(uint8_t reg)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
36 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
37 return offsetof(m68k_context, aregs) + sizeof(uint32_t) * reg;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
38 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
39
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
40 //must be called with an m68k_op_info that uses a register
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
41 size_t reg_offset(m68k_op_info *op)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
42 {
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
43 return op->addr_mode == MODE_REG ? dreg_offset(op->params.regs.pri) : areg_offset(op->params.regs.pri);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
44 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
45
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
46 void print_regs_exit(m68k_context * context)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
47 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
48 printf("XNZVC\n%d%d%d%d%d\n", context->flags[0], context->flags[1], context->flags[2], context->flags[3], context->flags[4]);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
49 for (int i = 0; i < 8; i++) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
50 printf("d%d: %X\n", i, context->dregs[i]);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
51 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
52 for (int i = 0; i < 8; i++) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
53 printf("a%d: %X\n", i, context->aregs[i]);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
54 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
55 exit(0);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
56 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
57
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
58 void m68k_read_size(m68k_options *opts, uint8_t size)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
59 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
60 switch (size)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
61 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
62 case OPSIZE_BYTE:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
63 call(&opts->gen.code, opts->read_8);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
64 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
65 case OPSIZE_WORD:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
66 call(&opts->gen.code, opts->read_16);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
67 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
68 case OPSIZE_LONG:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
69 call(&opts->gen.code, opts->read_32);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
70 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
71 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
72 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
73
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
74 void m68k_write_size(m68k_options *opts, uint8_t size)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
75 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
76 switch (size)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
77 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
78 case OPSIZE_BYTE:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
79 call(&opts->gen.code, opts->write_8);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
80 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
81 case OPSIZE_WORD:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
82 call(&opts->gen.code, opts->write_16);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
83 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
84 case OPSIZE_LONG:
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
85 call(&opts->gen.code, opts->write_32_highfirst);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
86 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
87 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
88 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
89
688
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
90 void m68k_save_result(m68kinst * inst, m68k_options * opts)
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
91 {
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
92 code_info *code = &opts->gen.code;
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
93 if (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode != MODE_AREG && inst->dst.addr_mode != MODE_UNUSED) {
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
94 if (inst->dst.addr_mode == MODE_AREG_PREDEC && inst->src.addr_mode == MODE_AREG_PREDEC && inst->op != M68K_MOVE) {
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
95 areg_to_native(opts, inst->dst.params.regs.pri, opts->gen.scratch2);
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
96 }
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
97 switch (inst->extra.size)
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
98 {
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
99 case OPSIZE_BYTE:
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
100 call(code, opts->write_8);
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
101 break;
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
102 case OPSIZE_WORD:
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
103 call(code, opts->write_16);
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
104 break;
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
105 case OPSIZE_LONG:
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
106 call(code, opts->write_32_lowfirst);
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
107 break;
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
108 }
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
109 }
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
110 }
8c546bc1d773 Moved m68k_save_result to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 687
diff changeset
111
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
112 void translate_m68k_lea_pea(m68k_options * opts, m68kinst * inst)
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
113 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
114 code_info *code = &opts->gen.code;
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
115 int8_t dst_reg = inst->op == M68K_PEA ? opts->gen.scratch1 : native_reg(&(inst->dst), opts);
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
116 switch(inst->src.addr_mode)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
117 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
118 case MODE_AREG_INDIRECT:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
119 cycles(&opts->gen, BUS);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
120 if (dst_reg >= 0) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
121 areg_to_native(opts, inst->src.params.regs.pri, dst_reg);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
122 } else {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
123 if (opts->aregs[inst->src.params.regs.pri] >= 0) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
124 native_to_areg(opts, opts->aregs[inst->src.params.regs.pri], inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
125 } else {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
126 areg_to_native(opts, inst->src.params.regs.pri, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
127 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
128 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
129 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
130 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
131 case MODE_AREG_DISPLACE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
132 cycles(&opts->gen, 8);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
133 calc_areg_displace(opts, &inst->src, dst_reg >= 0 ? dst_reg : opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
134 if (dst_reg < 0) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
135 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
136 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
137 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
138 case MODE_AREG_INDEX_DISP8:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
139 cycles(&opts->gen, 12);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
140 if (dst_reg < 0 || inst->dst.params.regs.pri == inst->src.params.regs.pri || inst->dst.params.regs.pri == (inst->src.params.regs.sec >> 1 & 0x7)) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
141 dst_reg = opts->gen.scratch1;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
142 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
143 calc_areg_index_disp8(opts, &inst->src, dst_reg);
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
144 if (dst_reg == opts->gen.scratch1 && inst->op != M68K_PEA) {
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
145 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
146 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
147 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
148 case MODE_PC_DISPLACE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
149 cycles(&opts->gen, 8);
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
150 if (inst->op == M68K_PEA) {
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
151 ldi_native(opts, inst->src.params.regs.displacement + inst->address+2, dst_reg);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
152 } else {
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
153 ldi_areg(opts, inst->src.params.regs.displacement + inst->address+2, inst->dst.params.regs.pri);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
154 }
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
155 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
156 case MODE_PC_INDEX_DISP8:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
157 cycles(&opts->gen, BUS*3);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
158 if (dst_reg < 0 || inst->dst.params.regs.pri == (inst->src.params.regs.sec >> 1 & 0x7)) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
159 dst_reg = opts->gen.scratch1;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
160 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
161 ldi_native(opts, inst->address+2, dst_reg);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
162 calc_index_disp8(opts, &inst->src, dst_reg);
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
163 if (dst_reg == opts->gen.scratch1 && inst->op != M68K_PEA) {
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
164 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
165 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
166 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
167 case MODE_ABSOLUTE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
168 case MODE_ABSOLUTE_SHORT:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
169 cycles(&opts->gen, (inst->src.addr_mode == MODE_ABSOLUTE) ? BUS * 3 : BUS * 2);
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
170 if (inst->op == M68K_PEA) {
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
171 ldi_native(opts, inst->src.params.immed, dst_reg);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
172 } else {
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
173 ldi_areg(opts, inst->src.params.immed, inst->dst.params.regs.pri);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
174 }
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
175 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
176 default:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
177 m68k_disasm(inst, disasm_buf);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
178 fatal_error("%X: %s\naddress mode %d not implemented (lea src)\n", inst->address, disasm_buf, inst->src.addr_mode);
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
179 }
581
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
180 if (inst->op == M68K_PEA) {
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
181 subi_areg(opts, 4, 7);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
182 areg_to_native(opts, 7, opts->gen.scratch2);
9f40aa5243c2 Combine implementations of lea and pea. Update bit instructions to use the op_ family of functions to simplify their implementation a bit.
Michael Pavone <pavone@retrodev.com>
parents: 574
diff changeset
183 call(code, opts->write_32_lowfirst);
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
184 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
185 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
186
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
187 void push_const(m68k_options *opts, int32_t value)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
188 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
189 ldi_native(opts, value, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
190 subi_areg(opts, 4, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
191 areg_to_native(opts, 7, opts->gen.scratch2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
192 call(&opts->gen.code, opts->write_32_highfirst);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
193 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
194
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
195 void jump_m68k_abs(m68k_options * opts, uint32_t address)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
196 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
197 code_info *code = &opts->gen.code;
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
198 code_ptr dest_addr = get_native_address(opts, address);
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
199 if (!dest_addr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
200 opts->gen.deferred = defer_address(opts->gen.deferred, address, code->cur + 1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
201 //dummy address to be replaced later, make sure it generates a 4-byte displacement
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
202 dest_addr = code->cur + 256;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
203 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
204 jmp(code, dest_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
205 //this used to call opts->native_addr for destinations in RAM, but that shouldn't be needed
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
206 //since instruction retranslation patches the original native instruction location
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
207 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
208
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
209 void translate_m68k_bsr(m68k_options * opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
210 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
211 code_info *code = &opts->gen.code;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
212 int32_t disp = inst->src.params.immed;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
213 uint32_t after = inst->address + (inst->variant == VAR_BYTE ? 2 : 4);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
214 //TODO: Add cycles in the right place relative to pushing the return address on the stack
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
215 cycles(&opts->gen, 10);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
216 push_const(opts, after);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
217 jump_m68k_abs(opts, inst->address + 2 + disp);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
218 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
219
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
220 void translate_m68k_jmp_jsr(m68k_options * opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
221 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
222 uint8_t is_jsr = inst->op == M68K_JSR;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
223 code_info *code = &opts->gen.code;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
224 code_ptr dest_addr;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
225 uint8_t sec_reg;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
226 uint32_t after;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
227 uint32_t m68k_addr;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
228 switch(inst->src.addr_mode)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
229 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
230 case MODE_AREG_INDIRECT:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
231 cycles(&opts->gen, BUS*2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
232 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
233 push_const(opts, inst->address+2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
234 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
235 areg_to_native(opts, inst->src.params.regs.pri, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
236 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
237 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
238 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
239 case MODE_AREG_DISPLACE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
240 cycles(&opts->gen, BUS*2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
241 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
242 push_const(opts, inst->address+4);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
243 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
244 calc_areg_displace(opts, &inst->src, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
245 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
246 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
247 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
248 case MODE_AREG_INDEX_DISP8:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
249 cycles(&opts->gen, BUS*3);//TODO: CHeck that this is correct
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
250 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
251 push_const(opts, inst->address+4);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
252 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
253 calc_areg_index_disp8(opts, &inst->src, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
254 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
255 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
256 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
257 case MODE_PC_DISPLACE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
258 //TODO: Add cycles in the right place relative to pushing the return address on the stack
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
259 cycles(&opts->gen, 10);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
260 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
261 push_const(opts, inst->address+4);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
262 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
263 jump_m68k_abs(opts, inst->src.params.regs.displacement + inst->address + 2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
264 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
265 case MODE_PC_INDEX_DISP8:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
266 cycles(&opts->gen, BUS*3);//TODO: CHeck that this is correct
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
267 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
268 push_const(opts, inst->address+4);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
269 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
270 ldi_native(opts, inst->address+2, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
271 calc_index_disp8(opts, &inst->src, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
272 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
273 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
274 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
275 case MODE_ABSOLUTE:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
276 case MODE_ABSOLUTE_SHORT:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
277 //TODO: Add cycles in the right place relative to pushing the return address on the stack
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
278 cycles(&opts->gen, inst->src.addr_mode == MODE_ABSOLUTE ? 12 : 10);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
279 if (is_jsr) {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
280 push_const(opts, inst->address + (inst->src.addr_mode == MODE_ABSOLUTE ? 6 : 4));
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
281 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
282 jump_m68k_abs(opts, inst->src.params.immed);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
283 break;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
284 default:
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
285 m68k_disasm(inst, disasm_buf);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
286 fatal_error("%s\naddress mode %d not yet supported (%s)\n", disasm_buf, inst->src.addr_mode, is_jsr ? "jsr" : "jmp");
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
287 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
288 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
289
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
290 void translate_m68k_unlk(m68k_options * opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
291 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
292 cycles(&opts->gen, BUS);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
293 areg_to_native(opts, inst->dst.params.regs.pri, opts->aregs[7]);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
294 areg_to_native(opts, 7, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
295 call(&opts->gen.code, opts->read_32);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
296 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
297 addi_areg(opts, 4, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
298 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
299
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
300 void translate_m68k_link(m68k_options * opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
301 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
302 //compensate for displacement word
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
303 cycles(&opts->gen, BUS);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
304 subi_areg(opts, 4, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
305 areg_to_native(opts, 7, opts->gen.scratch2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
306 areg_to_native(opts, inst->src.params.regs.pri, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
307 call(&opts->gen.code, opts->write_32_highfirst);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
308 native_to_areg(opts, opts->aregs[7], inst->src.params.regs.pri);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
309 addi_areg(opts, inst->dst.params.immed, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
310 //prefetch
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
311 cycles(&opts->gen, BUS);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
312 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
313
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
314 void translate_m68k_rts(m68k_options * opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
315 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
316 code_info *code = &opts->gen.code;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
317 //TODO: Add cycles
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
318 areg_to_native(opts, 7, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
319 addi_areg(opts, 4, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
320 call(code, opts->read_32);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
321 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
322 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
323 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
324
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
325 void translate_m68k_rtr(m68k_options *opts, m68kinst * inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
326 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
327 code_info *code = &opts->gen.code;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
328 //Read saved CCR
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
329 areg_to_native(opts, 7, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
330 call(code, opts->read_16);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
331 addi_areg(opts, 2, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
332 call(code, opts->set_ccr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
333 //Read saved PC
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
334 areg_to_native(opts, 7, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
335 call(code, opts->read_32);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
336 addi_areg(opts, 4, 7);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
337 //Get native address and jump to it
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
338 call(code, opts->native_addr);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
339 jmp_r(code, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
340 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
341
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
342 void translate_m68k_trap(m68k_options *opts, m68kinst *inst)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
343 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
344 code_info *code = &opts->gen.code;
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
345 ldi_native(opts, inst->src.params.immed + VECTOR_TRAP_0, opts->gen.scratch2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
346 ldi_native(opts, inst->address+2, opts->gen.scratch1);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
347 jmp(code, opts->trap);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
348 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
349
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
350 void translate_m68k_move_usp(m68k_options *opts, m68kinst *inst)
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
351 {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
352 cycles(&opts->gen, BUS);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
353 int8_t reg;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
354 if (inst->src.addr_mode == MODE_UNUSED) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
355 reg = native_reg(&inst->dst, opts);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
356 if (reg < 0) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
357 reg = opts->gen.scratch1;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
358 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
359 areg_to_native(opts, 8, reg);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
360 if (reg == opts->gen.scratch1) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
361 native_to_areg(opts, opts->gen.scratch1, inst->dst.params.regs.pri);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
362 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
363 } else {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
364 reg = native_reg(&inst->src, opts);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
365 if (reg < 0) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
366 reg = opts->gen.scratch1;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
367 areg_to_native(opts, inst->src.params.regs.pri, reg);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
368 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
369 native_to_areg(opts, reg, 8);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
370 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
371 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
372
588
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
373 void translate_m68k_movem(m68k_options * opts, m68kinst * inst)
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
374 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
375 code_info *code = &opts->gen.code;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
376 int8_t bit,reg,sec_reg;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
377 uint8_t early_cycles;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
378 if(inst->src.addr_mode == MODE_REG) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
379 //reg to mem
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
380 early_cycles = 8;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
381 int8_t dir;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
382 switch (inst->dst.addr_mode)
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
383 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
384 case MODE_AREG_INDIRECT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
385 case MODE_AREG_PREDEC:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
386 areg_to_native(opts, inst->dst.params.regs.pri, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
387 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
388 case MODE_AREG_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
389 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
390 calc_areg_displace(opts, &inst->dst, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
391 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
392 case MODE_AREG_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
393 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
394 calc_areg_index_disp8(opts, &inst->dst, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
395 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
396 case MODE_PC_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
397 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
398 ldi_native(opts, inst->dst.params.regs.displacement + inst->address+2, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
399 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
400 case MODE_PC_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
401 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
402 ldi_native(opts, inst->address+2, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
403 calc_index_disp8(opts, &inst->dst, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
404 case MODE_ABSOLUTE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
405 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
406 case MODE_ABSOLUTE_SHORT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
407 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
408 ldi_native(opts, inst->dst.params.immed, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
409 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
410 default:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
411 m68k_disasm(inst, disasm_buf);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
412 fatal_error("%X: %s\naddress mode %d not implemented (movem dst)\n", inst->address, disasm_buf, inst->dst.addr_mode);
588
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
413 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
414 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
415 reg = 15;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
416 dir = -1;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
417 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
418 reg = 0;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
419 dir = 1;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
420 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
421 cycles(&opts->gen, early_cycles);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
422 for(bit=0; reg < 16 && reg >= 0; reg += dir, bit++) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
423 if (inst->src.params.immed & (1 << bit)) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
424 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
425 subi_native(opts, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
426 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
427 push_native(opts, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
428 if (reg > 7) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
429 areg_to_native(opts, reg-8, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
430 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
431 dreg_to_native(opts, reg, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
432 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
433 if (inst->extra.size == OPSIZE_LONG) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
434 call(code, opts->write_32_lowfirst);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
435 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
436 call(code, opts->write_16);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
437 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
438 pop_native(opts, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
439 if (inst->dst.addr_mode != MODE_AREG_PREDEC) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
440 addi_native(opts, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
441 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
442 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
443 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
444 if (inst->dst.addr_mode == MODE_AREG_PREDEC) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
445 native_to_areg(opts, opts->gen.scratch2, inst->dst.params.regs.pri);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
446 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
447 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
448 //mem to reg
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
449 early_cycles = 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
450 switch (inst->src.addr_mode)
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
451 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
452 case MODE_AREG_INDIRECT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
453 case MODE_AREG_POSTINC:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
454 areg_to_native(opts, inst->src.params.regs.pri, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
455 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
456 case MODE_AREG_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
457 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
458 reg = opts->gen.scratch2;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
459 calc_areg_displace(opts, &inst->src, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
460 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
461 case MODE_AREG_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
462 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
463 calc_areg_index_disp8(opts, &inst->src, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
464 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
465 case MODE_PC_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
466 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
467 ldi_native(opts, inst->src.params.regs.displacement + inst->address+2, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
468 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
469 case MODE_PC_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
470 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
471 ldi_native(opts, inst->address+2, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
472 calc_index_disp8(opts, &inst->src, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
473 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
474 case MODE_ABSOLUTE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
475 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
476 case MODE_ABSOLUTE_SHORT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
477 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
478 ldi_native(opts, inst->src.params.immed, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
479 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
480 default:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
481 m68k_disasm(inst, disasm_buf);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
482 fatal_error("%X: %s\naddress mode %d not implemented (movem src)\n", inst->address, disasm_buf, inst->src.addr_mode);
588
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
483 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
484 cycles(&opts->gen, early_cycles);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
485 for(reg = 0; reg < 16; reg ++) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
486 if (inst->dst.params.immed & (1 << reg)) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
487 push_native(opts, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
488 if (inst->extra.size == OPSIZE_LONG) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
489 call(code, opts->read_32);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
490 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
491 call(code, opts->read_16);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
492 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
493 if (inst->extra.size == OPSIZE_WORD) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
494 sign_extend16_native(opts, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
495 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
496 if (reg > 7) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
497 native_to_areg(opts, opts->gen.scratch1, reg-8);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
498 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
499 native_to_dreg(opts, opts->gen.scratch1, reg);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
500 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
501 pop_native(opts, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
502 addi_native(opts, (inst->extra.size == OPSIZE_LONG) ? 4 : 2, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
503 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
504 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
505 if (inst->src.addr_mode == MODE_AREG_POSTINC) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
506 native_to_areg(opts, opts->gen.scratch1, inst->src.params.regs.pri);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
507 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
508 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
509 //prefetch
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
510 cycles(&opts->gen, 4);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
511 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
512
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
513 void translate_m68k_nop(m68k_options *opts, m68kinst *inst)
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
514 {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
515 cycles(&opts->gen, BUS);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
516 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
517
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
518 void swap_ssp_usp(m68k_options * opts)
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
519 {
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
520 areg_to_native(opts, 7, opts->gen.scratch2);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
521 areg_to_native(opts, 8, opts->aregs[7]);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
522 native_to_areg(opts, opts->gen.scratch2, 8);
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
523 }
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
524
687
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
525 void translate_m68k_reset(m68k_options *opts, m68kinst *inst)
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
526 {
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
527 code_info *code = &opts->gen.code;
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
528 call(code, opts->gen.save_context);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
529 call_args(code, (code_ptr)print_regs_exit, 1, opts->gen.context_reg);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
530 }
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
531
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
532 void translate_m68k_rte(m68k_options *opts, m68kinst *inst)
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
533 {
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
534 code_info *code = &opts->gen.code;
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
535 //TODO: Trap if not in system mode
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
536 //Read saved SR
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
537 areg_to_native(opts, 7, opts->gen.scratch1);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
538 call(code, opts->read_16);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
539 addi_areg(opts, 2, 7);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
540 call(code, opts->set_sr);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
541 //Read saved PC
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
542 areg_to_native(opts, 7, opts->gen.scratch1);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
543 call(code, opts->read_32);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
544 addi_areg(opts, 4, 7);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
545 check_user_mode_swap_ssp_usp(opts);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
546 //Get native address, sync components, recalculate integer points and jump to returned address
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
547 call(code, opts->native_addr_and_sync);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
548 jmp_r(code, opts->gen.scratch1);
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
549 }
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
550
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
551 code_ptr get_native_address(m68k_options *opts, uint32_t address)
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
552 {
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
553 native_map_slot * native_code_map = opts->gen.native_code_map;
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
554 address &= opts->gen.address_mask;
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
555 if (address & 1) {
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
556 return opts->odd_address;
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
557 }
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
558 address /= 2;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
559 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
560 if (!native_code_map[chunk].base) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
561 return NULL;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
562 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
563 uint32_t offset = address % NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
564 if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET || native_code_map[chunk].offsets[offset] == EXTENSION_WORD) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
565 return NULL;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
566 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
567 return native_code_map[chunk].base + native_code_map[chunk].offsets[offset];
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
568 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
569
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
570 code_ptr get_native_from_context(m68k_context * context, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
571 {
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
572 return get_native_address(context->options, address);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
573 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
574
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
575 uint32_t get_instruction_start(native_map_slot * native_code_map, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
576 {
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
577 //FIXME: Use opts->gen.address_mask
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
578 address &= 0xFFFFFF;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
579 address /= 2;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
580 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
581 if (!native_code_map[chunk].base) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
582 return 0;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
583 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
584 uint32_t offset = address % NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
585 if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
586 return 0;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
587 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
588 while (native_code_map[chunk].offsets[offset] == EXTENSION_WORD) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
589 --address;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
590 chunk = address / NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
591 offset = address % NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
592 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
593 return address*2;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
594 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
595
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
596 void map_native_address(m68k_context * context, uint32_t address, code_ptr native_addr, uint8_t size, uint8_t native_size)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
597 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
598 native_map_slot * native_code_map = context->native_code_map;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
599 m68k_options * opts = context->options;
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
600 address &= opts->gen.address_mask;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
601 uint32_t meta_off = 0;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
602 //TODO: Refactor part of this loop into some kind of get_ram_chunk function
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
603 for (int i = 0; i < opts->gen.memmap_chunks; i++) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
604 if (address >= opts->gen.memmap[i].start && address < opts->gen.memmap[i].end) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
605 if ((opts->gen.memmap[i].flags & (MMAP_WRITE | MMAP_CODE)) == (MMAP_WRITE | MMAP_CODE)) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
606 uint32_t masked = (address & opts->gen.memmap[i].mask);
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
607 uint32_t final_off = masked + meta_off;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
608 uint32_t ram_flags_off = final_off >> (opts->gen.ram_flags_shift + 3);
692
e11e68918691 Fix bug in map_native_address that was breaking some self-modifying code in Gunstar Heroes
Michael Pavone <pavone@retrodev.com>
parents: 690
diff changeset
609 context->ram_code_flags[ram_flags_off] |= 1 << ((final_off >> opts->gen.ram_flags_shift) & 7);
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
610
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
611 uint32_t slot = final_off / 1024;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
612 if (!opts->gen.ram_inst_sizes[slot]) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
613 opts->gen.ram_inst_sizes[slot] = malloc(sizeof(uint8_t) * 512);
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
614 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
615 opts->gen.ram_inst_sizes[slot][(final_off/2) & 511] = native_size;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
616
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
617 //TODO: Deal with case in which end of instruction is in a different memory chunk
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
618 masked = (address + size - 1) & opts->gen.memmap[i].mask;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
619 final_off = masked + meta_off;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
620 ram_flags_off = final_off >> (opts->gen.ram_flags_shift + 3);
692
e11e68918691 Fix bug in map_native_address that was breaking some self-modifying code in Gunstar Heroes
Michael Pavone <pavone@retrodev.com>
parents: 690
diff changeset
621 context->ram_code_flags[ram_flags_off] |= 1 << ((final_off >> opts->gen.ram_flags_shift) & 7);
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
622 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
623 break;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
624 } else if ((opts->gen.memmap[i].flags & (MMAP_WRITE | MMAP_CODE)) == (MMAP_WRITE | MMAP_CODE)) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
625 uint32_t size = chunk_size(&opts->gen, opts->gen.memmap + i);
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
626 meta_off += size;
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
627 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
628 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
629 address/= 2;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
630 uint32_t chunk = address / NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
631 if (!native_code_map[chunk].base) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
632 native_code_map[chunk].base = native_addr;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
633 native_code_map[chunk].offsets = malloc(sizeof(int32_t) * NATIVE_CHUNK_SIZE);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
634 memset(native_code_map[chunk].offsets, 0xFF, sizeof(int32_t) * NATIVE_CHUNK_SIZE);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
635 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
636 uint32_t offset = address % NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
637 native_code_map[chunk].offsets[offset] = native_addr-native_code_map[chunk].base;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
638 for(address++,size-=2; size; address++,size-=2) {
725
a92ca6f0ed83 Fix out of bounds memory access when an instruction wraps around the end of memory
Michael Pavone <pavone@retrodev.com>
parents: 713
diff changeset
639 address &= opts->gen.address_mask >> 1;
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
640 chunk = address / NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
641 offset = address % NATIVE_CHUNK_SIZE;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
642 if (!native_code_map[chunk].base) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
643 native_code_map[chunk].base = native_addr;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
644 native_code_map[chunk].offsets = malloc(sizeof(int32_t) * NATIVE_CHUNK_SIZE);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
645 memset(native_code_map[chunk].offsets, 0xFF, sizeof(int32_t) * NATIVE_CHUNK_SIZE);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
646 }
713
f9b80a78d9a6 Don't overwrite an instruction offset mapping with an extension word value. I really need the ability for a word to be mapped to more than one instruction, but this will be more correct for now
Michael Pavone <pavone@retrodev.com>
parents: 706
diff changeset
647 if (native_code_map[chunk].offsets[offset] == INVALID_OFFSET) {
f9b80a78d9a6 Don't overwrite an instruction offset mapping with an extension word value. I really need the ability for a word to be mapped to more than one instruction, but this will be more correct for now
Michael Pavone <pavone@retrodev.com>
parents: 706
diff changeset
648 //TODO: Better handling of overlapping instructions
f9b80a78d9a6 Don't overwrite an instruction offset mapping with an extension word value. I really need the ability for a word to be mapped to more than one instruction, but this will be more correct for now
Michael Pavone <pavone@retrodev.com>
parents: 706
diff changeset
649 native_code_map[chunk].offsets[offset] = EXTENSION_WORD;
f9b80a78d9a6 Don't overwrite an instruction offset mapping with an extension word value. I really need the ability for a word to be mapped to more than one instruction, but this will be more correct for now
Michael Pavone <pavone@retrodev.com>
parents: 706
diff changeset
650 }
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
651 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
652 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
653
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
654 uint8_t get_native_inst_size(m68k_options * opts, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
655 {
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
656 address &= opts->gen.address_mask;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
657 uint32_t meta_off = 0;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
658 for (int i = 0; i < opts->gen.memmap_chunks; i++) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
659 if (address >= opts->gen.memmap[i].start && address < opts->gen.memmap[i].end) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
660 if ((opts->gen.memmap[i].flags & (MMAP_WRITE | MMAP_CODE)) != (MMAP_WRITE | MMAP_CODE)) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
661 return 0;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
662 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
663 meta_off += address & opts->gen.memmap[i].mask;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
664 break;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
665 } else if ((opts->gen.memmap[i].flags & (MMAP_WRITE | MMAP_CODE)) == (MMAP_WRITE | MMAP_CODE)) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
666 uint32_t size = chunk_size(&opts->gen, opts->gen.memmap + i);
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
667 meta_off += size;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
668 }
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
669 }
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
670 uint32_t slot = meta_off/1024;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
671 return opts->gen.ram_inst_sizes[slot][(meta_off/2)%512];
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
672 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
673
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
674 uint8_t m68k_is_terminal(m68kinst * inst)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
675 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
676 return inst->op == M68K_RTS || inst->op == M68K_RTE || inst->op == M68K_RTR || inst->op == M68K_JMP
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
677 || inst->op == M68K_TRAP || inst->op == M68K_ILLEGAL || inst->op == M68K_INVALID || inst->op == M68K_RESET
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
678 || (inst->op == M68K_BCC && inst->extra.cond == COND_TRUE);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
679 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
680
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
681 void m68k_handle_deferred(m68k_context * context)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
682 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
683 m68k_options * opts = context->options;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
684 process_deferred(&opts->gen.deferred, context, (native_addr_func)get_native_from_context);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
685 if (opts->gen.deferred) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
686 translate_m68k_stream(opts->gen.deferred->address, context);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
687 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
688 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
689
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
690 typedef enum {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
691 RAW_FUNC = 1,
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
692 BINARY_ARITH,
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
693 UNARY_ARITH,
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
694 OP_FUNC
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
695 } impl_type;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
696
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
697 typedef void (*raw_fun)(m68k_options * opts, m68kinst *inst);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
698 typedef void (*op_fun)(m68k_options * opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
699
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
700 typedef struct {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
701 union {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
702 raw_fun raw;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
703 uint32_t flag_mask;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
704 op_fun op;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
705 } impl;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
706 impl_type itype;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
707 } impl_info;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
708
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
709 #define RAW_IMPL(inst, fun) [inst] = { .impl = { .raw = fun }, .itype = RAW_FUNC }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
710 #define OP_IMPL(inst, fun) [inst] = { .impl = { .op = fun }, .itype = OP_FUNC }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
711 #define UNARY_IMPL(inst, mask) [inst] = { .impl = { .flag_mask = mask }, .itype = UNARY_ARITH }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
712 #define BINARY_IMPL(inst, mask) [inst] = { .impl = { .flag_mask = mask}, .itype = BINARY_ARITH }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
713
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
714 impl_info m68k_impls[] = {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
715 //math
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
716 BINARY_IMPL(M68K_ADD, X|N|Z|V|C),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
717 BINARY_IMPL(M68K_SUB, X|N|Z|V|C),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
718 //z flag is special cased for ADDX/SUBX
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
719 BINARY_IMPL(M68K_ADDX, X|N|V|C),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
720 BINARY_IMPL(M68K_SUBX, X|N|V|C),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
721 OP_IMPL(M68K_ABCD, translate_m68k_abcd_sbcd),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
722 OP_IMPL(M68K_SBCD, translate_m68k_abcd_sbcd),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
723 BINARY_IMPL(M68K_AND, N|Z|V0|C0),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
724 BINARY_IMPL(M68K_EOR, N|Z|V0|C0),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
725 BINARY_IMPL(M68K_OR, N|Z|V0|C0),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
726 RAW_IMPL(M68K_CMP, translate_m68k_cmp),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
727 OP_IMPL(M68K_DIVS, translate_m68k_div),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
728 OP_IMPL(M68K_DIVU, translate_m68k_div),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
729 OP_IMPL(M68K_MULS, translate_m68k_mul),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
730 OP_IMPL(M68K_MULU, translate_m68k_mul),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
731 RAW_IMPL(M68K_EXT, translate_m68k_ext),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
732 UNARY_IMPL(M68K_NEG, X|N|Z|V|C),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
733 OP_IMPL(M68K_NEGX, translate_m68k_negx),
614
60a06c025103 Fix flag mask for m68k not
Michael Pavone <pavone@retrodev.com>
parents: 588
diff changeset
734 UNARY_IMPL(M68K_NOT, N|Z|V|C),
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
735 UNARY_IMPL(M68K_TST, N|Z|V0|C0),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
736
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
737 //shift/rotate
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
738 OP_IMPL(M68K_ASL, translate_m68k_sl),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
739 OP_IMPL(M68K_LSL, translate_m68k_sl),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
740 OP_IMPL(M68K_ASR, translate_m68k_asr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
741 OP_IMPL(M68K_LSR, translate_m68k_lsr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
742 OP_IMPL(M68K_ROL, translate_m68k_rot),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
743 OP_IMPL(M68K_ROR, translate_m68k_rot),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
744 OP_IMPL(M68K_ROXL, translate_m68k_rot),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
745 OP_IMPL(M68K_ROXR, translate_m68k_rot),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
746 UNARY_IMPL(M68K_SWAP, N|Z|V0|C0),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
747
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
748 //bit
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
749 OP_IMPL(M68K_BCHG, translate_m68k_bit),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
750 OP_IMPL(M68K_BCLR, translate_m68k_bit),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
751 OP_IMPL(M68K_BSET, translate_m68k_bit),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
752 OP_IMPL(M68K_BTST, translate_m68k_bit),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
753
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
754 //data movement
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
755 RAW_IMPL(M68K_MOVE, translate_m68k_move),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
756 RAW_IMPL(M68K_MOVEM, translate_m68k_movem),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
757 RAW_IMPL(M68K_MOVEP, translate_m68k_movep),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
758 RAW_IMPL(M68K_MOVE_USP, translate_m68k_move_usp),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
759 RAW_IMPL(M68K_LEA, translate_m68k_lea_pea),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
760 RAW_IMPL(M68K_PEA, translate_m68k_lea_pea),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
761 RAW_IMPL(M68K_CLR, translate_m68k_clr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
762 OP_IMPL(M68K_EXG, translate_m68k_exg),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
763 RAW_IMPL(M68K_SCC, translate_m68k_scc),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
764
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
765 //function calls and branches
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
766 RAW_IMPL(M68K_BCC, translate_m68k_bcc),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
767 RAW_IMPL(M68K_BSR, translate_m68k_bsr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
768 RAW_IMPL(M68K_DBCC, translate_m68k_dbcc),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
769 RAW_IMPL(M68K_JMP, translate_m68k_jmp_jsr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
770 RAW_IMPL(M68K_JSR, translate_m68k_jmp_jsr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
771 RAW_IMPL(M68K_RTS, translate_m68k_rts),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
772 RAW_IMPL(M68K_RTE, translate_m68k_rte),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
773 RAW_IMPL(M68K_RTR, translate_m68k_rtr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
774 RAW_IMPL(M68K_LINK, translate_m68k_link),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
775 RAW_IMPL(M68K_UNLK, translate_m68k_unlk),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
776
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
777 //SR/CCR stuff
584
b6713c1b6f55 Combine andi ccr/sr and ori ccr/sr.
Michael Pavone <pavone@retrodev.com>
parents: 582
diff changeset
778 RAW_IMPL(M68K_ANDI_CCR, translate_m68k_andi_ori_ccr_sr),
b6713c1b6f55 Combine andi ccr/sr and ori ccr/sr.
Michael Pavone <pavone@retrodev.com>
parents: 582
diff changeset
779 RAW_IMPL(M68K_ANDI_SR, translate_m68k_andi_ori_ccr_sr),
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
780 RAW_IMPL(M68K_EORI_CCR, translate_m68k_eori_ccr_sr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
781 RAW_IMPL(M68K_EORI_SR, translate_m68k_eori_ccr_sr),
584
b6713c1b6f55 Combine andi ccr/sr and ori ccr/sr.
Michael Pavone <pavone@retrodev.com>
parents: 582
diff changeset
782 RAW_IMPL(M68K_ORI_CCR, translate_m68k_andi_ori_ccr_sr),
b6713c1b6f55 Combine andi ccr/sr and ori ccr/sr.
Michael Pavone <pavone@retrodev.com>
parents: 582
diff changeset
783 RAW_IMPL(M68K_ORI_SR, translate_m68k_andi_ori_ccr_sr),
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
784 OP_IMPL(M68K_MOVE_CCR, translate_m68k_move_ccr_sr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
785 OP_IMPL(M68K_MOVE_SR, translate_m68k_move_ccr_sr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
786 OP_IMPL(M68K_MOVE_FROM_SR, translate_m68k_move_from_sr),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
787 RAW_IMPL(M68K_STOP, translate_m68k_stop),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
788
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
789 //traps
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
790 OP_IMPL(M68K_CHK, translate_m68k_chk),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
791 RAW_IMPL(M68K_TRAP, translate_m68k_trap),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
792 RAW_IMPL(M68K_ILLEGAL, translate_m68k_illegal),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
793 RAW_IMPL(M68K_INVALID, translate_m68k_invalid),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
794
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
795 //misc
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
796 RAW_IMPL(M68K_NOP, translate_m68k_nop),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
797 RAW_IMPL(M68K_RESET, translate_m68k_reset),
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
798
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
799 //currently unimplemented
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
800 //M68K_NBCD
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
801 //M68K_TAS
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
802 //M68K_TRAPV
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
803 };
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
804
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
805 void translate_m68k(m68k_options * opts, m68kinst * inst)
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
806 {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
807 check_cycles_int(&opts->gen, inst->address);
701
200ee73c7210 Remove/comment verbose logging added for tracking down sync bug
Michael Pavone <pavone@retrodev.com>
parents: 697
diff changeset
808 //log_address(&opts->gen, inst->address, "M68K: %X @ %d\n");
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
809 impl_info * info = m68k_impls + inst->op;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
810 if (info->itype == RAW_FUNC) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
811 info->impl.raw(opts, inst);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
812 return;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
813 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
814
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
815 host_ea src_op, dst_op;
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
816 if (inst->src.addr_mode != MODE_UNUSED) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
817 translate_m68k_op(inst, &src_op, opts, 0);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
818 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
819 if (inst->dst.addr_mode != MODE_UNUSED) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
820 translate_m68k_op(inst, &dst_op, opts, 1);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
821 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
822 if (info->itype == OP_FUNC) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
823 info->impl.op(opts, inst, &src_op, &dst_op);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
824 } else if (info->itype == BINARY_ARITH) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
825 translate_m68k_arith(opts, inst, info->impl.flag_mask, &src_op, &dst_op);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
826 } else if (info->itype == UNARY_ARITH) {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
827 translate_m68k_unary(opts, inst, info->impl.flag_mask, inst->dst.addr_mode != MODE_UNUSED ? &dst_op : &src_op);
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
828 } else {
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
829 m68k_disasm(inst, disasm_buf);
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 726
diff changeset
830 fatal_error("%X: %s\ninstruction %d not yet implemented\n", inst->address, disasm_buf, inst->op);
582
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
831 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
832 }
c05fcbfe1b1a Refactored translate_m68k so that it contains no host-cpu specific code and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 581
diff changeset
833
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
834 void translate_m68k_stream(uint32_t address, m68k_context * context)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
835 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
836 m68kinst instbuf;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
837 m68k_options * opts = context->options;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
838 code_info *code = &opts->gen.code;
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
839 if(get_native_address(opts, address)) {
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
840 return;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
841 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
842 uint16_t *encoded, *next;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
843 do {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
844 if (opts->address_log) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
845 fprintf(opts->address_log, "%X\n", address);
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
846 fflush(opts->address_log);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
847 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
848 do {
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
849 if (address & 1) {
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
850 break;
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
851 }
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
852 encoded = get_native_pointer(address, (void **)context->mem_pointers, &opts->gen);
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
853 if (!encoded) {
681
e26640daf1ae Prevent an infinite loop when handling out of bounds addresses in translate_m68k_stream
Michael Pavone <pavone@retrodev.com>
parents: 673
diff changeset
854 map_native_address(context, address, code->cur, 2, 1);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
855 translate_out_of_bounds(code);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
856 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
857 }
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
858 code_ptr existing = get_native_address(opts, address);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
859 if (existing) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
860 jmp(code, existing);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
861 break;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
862 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
863 next = m68k_decode(encoded, &instbuf, address);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
864 if (instbuf.op == M68K_INVALID) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
865 instbuf.src.params.immed = *encoded;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
866 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
867 uint16_t m68k_size = (next-encoded)*2;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
868 address += m68k_size;
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
869 //char disbuf[1024];
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
870 //m68k_disasm(&instbuf, disbuf);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
871 //printf("%X: %s\n", instbuf.address, disbuf);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
872
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
873 //make sure the beginning of the code for an instruction is contiguous
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
874 check_code_prologue(code);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
875 code_ptr start = code->cur;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
876 translate_m68k(opts, &instbuf);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
877 code_ptr after = code->cur;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
878 map_native_address(context, instbuf.address, start, m68k_size, after-start);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
879 } while(!m68k_is_terminal(&instbuf));
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
880 process_deferred(&opts->gen.deferred, context, (native_addr_func)get_native_from_context);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
881 if (opts->gen.deferred) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
882 address = opts->gen.deferred->address;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
883 }
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
884 } while(opts->gen.deferred);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
885 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
886
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
887 void * m68k_retranslate_inst(uint32_t address, m68k_context * context)
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
888 {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
889 m68k_options * opts = context->options;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
890 code_info *code = &opts->gen.code;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
891 uint8_t orig_size = get_native_inst_size(opts, address);
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
892 code_ptr orig_start = get_native_address(context->options, address);
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
893 uint32_t orig = address;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
894 code_info orig_code;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
895 orig_code.cur = orig_start;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
896 orig_code.last = orig_start + orig_size + 5;
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
897 uint16_t *after, *inst = get_native_pointer(address, (void **)context->mem_pointers, &opts->gen);
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
898 m68kinst instbuf;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
899 after = m68k_decode(inst, &instbuf, orig);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
900 if (orig_size != MAX_NATIVE_SIZE) {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
901 deferred_addr * orig_deferred = opts->gen.deferred;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
902
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
903 //make sure we have enough code space for the max size instruction
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
904 check_alloc_code(code, MAX_NATIVE_SIZE);
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
905 code_ptr native_start = code->cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
906 translate_m68k(opts, &instbuf);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
907 code_ptr native_end = code->cur;
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
908 /*uint8_t is_terminal = m68k_is_terminal(&instbuf);
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
909 if ((native_end - native_start) <= orig_size) {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
910 code_ptr native_next;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
911 if (!is_terminal) {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
912 native_next = get_native_address(context->native_code_map, orig + (after-inst)*2);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
913 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
914 if (is_terminal || (native_next && ((native_next == orig_start + orig_size) || (orig_size - (native_end - native_start)) > 5))) {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
915 printf("Using original location: %p\n", orig_code.cur);
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
916 remove_deferred_until(&opts->gen.deferred, orig_deferred);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
917 code_info tmp;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
918 tmp.cur = code->cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
919 tmp.last = code->last;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
920 code->cur = orig_code.cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
921 code->last = orig_code.last;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
922 translate_m68k(opts, &instbuf);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
923 native_end = orig_code.cur = code->cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
924 code->cur = tmp.cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
925 code->last = tmp.last;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
926 if (!is_terminal) {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
927 nop_fill_or_jmp_next(&orig_code, orig_start + orig_size, native_next);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
928 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
929 m68k_handle_deferred(context);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
930 return orig_start;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
931 }
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
932 }*/
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
933
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
934 map_native_address(context, instbuf.address, native_start, (after-inst)*2, MAX_NATIVE_SIZE);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
935
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
936 jmp(&orig_code, native_start);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
937 if (!m68k_is_terminal(&instbuf)) {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
938 code_ptr native_end = code->cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
939 code->cur = native_start + MAX_NATIVE_SIZE;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
940 code_ptr rest = get_native_address_trans(context, orig + (after-inst)*2);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
941 code_ptr tmp = code->cur;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
942 code->cur = native_end;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
943 jmp(code, rest);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
944 code->cur = tmp;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
945 } else {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
946 code->cur = native_start + MAX_NATIVE_SIZE;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
947 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
948 m68k_handle_deferred(context);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
949 return native_start;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
950 } else {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
951 code_info tmp = *code;
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
952 *code = orig_code;
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
953 translate_m68k(opts, &instbuf);
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
954 orig_code = *code;
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
955 *code = tmp;
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
956 if (!m68k_is_terminal(&instbuf)) {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
957 jmp(&orig_code, get_native_address_trans(context, orig + (after-inst)*2));
587
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
958 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
959 m68k_handle_deferred(context);
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
960 return orig_start;
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
961 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
962 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
963
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
964 code_ptr get_native_address_trans(m68k_context * context, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
965 {
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
966 code_ptr ret = get_native_address(context->options, address);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
967 if (!ret) {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
968 translate_m68k_stream(address, context);
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
969 ret = get_native_address(context->options, address);
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
970 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
971 return ret;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
972 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
973
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
974 void remove_breakpoint(m68k_context * context, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
975 {
726
7367b14ac01c Don't attempt to translate or map code at odd addresses. This fixes a bug that shows up when playing College Footbal USA 96
Michael Pavone <pavone@retrodev.com>
parents: 725
diff changeset
976 code_ptr native = get_native_address(context->options, address);
673
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
977 code_info tmp = context->options->gen.code;
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
978 context->options->gen.code.cur = native;
706
0a6dea8c8083 Fix problem with removing breakpoints
Michael Pavone <pavone@retrodev.com>
parents: 701
diff changeset
979 context->options->gen.code.last = native + MAX_NATIVE_SIZE;
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
980 check_cycles_int(&context->options->gen, address);
673
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
981 context->options->gen.code = tmp;
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
982 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
983
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
984 void start_68k_context(m68k_context * context, uint32_t address)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
985 {
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
986 code_ptr addr = get_native_address_trans(context, address);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
987 m68k_options * options = context->options;
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
988 options->start_context(addr, context);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
989 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
990
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
991 void m68k_reset(m68k_context * context)
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
992 {
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
993 //TODO: Actually execute the M68K reset vector rather than simulating some of its behavior
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
994 uint16_t *reset_vec = get_native_pointer(0, (void **)context->mem_pointers, &context->options->gen);
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
995 context->aregs[7] = reset_vec[0] << 16 | reset_vec[1];
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 614
diff changeset
996 uint32_t address = reset_vec[2] << 16 | reset_vec[3];
570
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
997 start_68k_context(context, address);
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
998 }
76bba9ffe351 Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
999
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
1000
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
1001 m68k_context * init_68k_context(m68k_options * opts)
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
1002 {
796
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 726
diff changeset
1003 size_t ctx_size = sizeof(m68k_context) + ram_size(&opts->gen) / (1 << opts->gen.ram_flags_shift) / 8;
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 726
diff changeset
1004 m68k_context * context = malloc(ctx_size);
41f73c76b978 Fix some memory issues
=?UTF-8?q?Higor=20Eur=C3=ADpedes?= <heuripedes@gmail.com>
parents: 726
diff changeset
1005 memset(context, 0, ctx_size);
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
1006 context->native_code_map = opts->gen.native_code_map;
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
1007 context->options = opts;
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
1008 context->int_cycle = CYCLE_NEVER;
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
1009 context->status = 0x27;
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 688
diff changeset
1010 return context;
574
1594525e2157 More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
1011 }