annotate m68k_core.c @ 697:7f96bd1cb1be

Sync fixes and logging to fix more sync issues
author Michael Pavone <pavone@retrodev.com>
date Mon, 11 May 2015 00:28:47 -0700
parents e11e68918691
children 200ee73c7210
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1 /*
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2 Copyright 2014 Michael Pavone
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3 This file is part of BlastEm.
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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.
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5 */
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6 #include "m68k_core.h"
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7 #include "m68k_internal.h"
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8 #include "68kinst.h"
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9 #include "backend.h"
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10 #include "gen.h"
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11 #include <stdio.h>
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12 #include <stddef.h>
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13 #include <stdlib.h>
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14 #include <string.h>
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15
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16 char disasm_buf[1024];
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17
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18 int8_t native_reg(m68k_op_info * op, m68k_options * opts)
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19 {
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20 if (op->addr_mode == MODE_REG) {
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21 return opts->dregs[op->params.regs.pri];
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22 }
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23 if (op->addr_mode == MODE_AREG) {
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24 return opts->aregs[op->params.regs.pri];
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25 }
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26 return -1;
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27 }
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28
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29 size_t dreg_offset(uint8_t reg)
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30 {
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31 return offsetof(m68k_context, dregs) + sizeof(uint32_t) * reg;
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32 }
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33
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34 size_t areg_offset(uint8_t reg)
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35 {
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36 return offsetof(m68k_context, aregs) + sizeof(uint32_t) * reg;
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37 }
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38
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39 //must be called with an m68k_op_info that uses a register
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40 size_t reg_offset(m68k_op_info *op)
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41 {
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42 return op->addr_mode == MODE_REG ? dreg_offset(op->params.regs.pri) : areg_offset(op->params.regs.pri);
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43 }
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44
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45 void print_regs_exit(m68k_context * context)
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46 {
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47 printf("XNZVC\n%d%d%d%d%d\n", context->flags[0], context->flags[1], context->flags[2], context->flags[3], context->flags[4]);
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48 for (int i = 0; i < 8; i++) {
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49 printf("d%d: %X\n", i, context->dregs[i]);
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50 }
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51 for (int i = 0; i < 8; i++) {
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52 printf("a%d: %X\n", i, context->aregs[i]);
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53 }
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54 exit(0);
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55 }
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56
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57 void m68k_read_size(m68k_options *opts, uint8_t size)
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58 {
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59 switch (size)
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60 {
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61 case OPSIZE_BYTE:
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62 call(&opts->gen.code, opts->read_8);
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63 break;
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64 case OPSIZE_WORD:
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65 call(&opts->gen.code, opts->read_16);
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66 break;
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67 case OPSIZE_LONG:
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68 call(&opts->gen.code, opts->read_32);
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69 break;
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70 }
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71 }
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72
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73 void m68k_write_size(m68k_options *opts, uint8_t size)
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74 {
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75 switch (size)
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76 {
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77 case OPSIZE_BYTE:
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78 call(&opts->gen.code, opts->write_8);
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79 break;
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80 case OPSIZE_WORD:
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81 call(&opts->gen.code, opts->write_16);
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82 break;
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83 case OPSIZE_LONG:
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84 call(&opts->gen.code, opts->write_32_highfirst);
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85 break;
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86 }
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87 }
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88
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89 void m68k_save_result(m68kinst * inst, m68k_options * opts)
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90 {
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91 code_info *code = &opts->gen.code;
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92 if (inst->dst.addr_mode != MODE_REG && inst->dst.addr_mode != MODE_AREG && inst->dst.addr_mode != MODE_UNUSED) {
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93 if (inst->dst.addr_mode == MODE_AREG_PREDEC && inst->src.addr_mode == MODE_AREG_PREDEC && inst->op != M68K_MOVE) {
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94 areg_to_native(opts, inst->dst.params.regs.pri, opts->gen.scratch2);
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95 }
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96 switch (inst->extra.size)
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97 {
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98 case OPSIZE_BYTE:
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99 call(code, opts->write_8);
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100 break;
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101 case OPSIZE_WORD:
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102 call(code, opts->write_16);
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103 break;
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104 case OPSIZE_LONG:
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105 call(code, opts->write_32_lowfirst);
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106 break;
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107 }
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108 }
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109 }
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110
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111 void translate_m68k_lea_pea(m68k_options * opts, m68kinst * inst)
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112 {
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113 code_info *code = &opts->gen.code;
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114 int8_t dst_reg = inst->op == M68K_PEA ? opts->gen.scratch1 : native_reg(&(inst->dst), opts);
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115 switch(inst->src.addr_mode)
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116 {
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117 case MODE_AREG_INDIRECT:
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118 cycles(&opts->gen, BUS);
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119 if (dst_reg >= 0) {
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120 areg_to_native(opts, inst->src.params.regs.pri, dst_reg);
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Michael Pavone <pavone@retrodev.com>
parents: 570
diff changeset
121 } 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
122 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
123 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
124 } 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
125 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
126 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
127 }
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 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
130 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
131 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
132 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
133 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
134 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
135 }
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 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
137 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
138 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
139 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
140 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
141 }
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 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
143 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
144 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
145 }
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 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
147 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
148 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
149 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
150 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
151 } 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
152 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
153 }
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
154 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
155 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
156 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
157 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
158 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
159 }
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 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
161 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
162 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
163 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
164 }
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 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
166 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
167 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
168 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
169 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
170 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
171 } 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
172 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
173 }
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
174 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
175 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
176 m68k_disasm(inst, disasm_buf);
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 printf("%X: %s\naddress mode %d not implemented (lea src)\n", inst->address, disasm_buf, 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
178 exit(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
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;
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
198 code_ptr dest_addr = get_native_address(opts->gen.native_code_map, 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
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);
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
286 printf("%s\naddress mode %d not yet supported (%s)\n", disasm_buf, inst->src.addr_mode, is_jsr ? "jsr" : "jmp");
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 exit(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
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
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 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
292 {
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 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
294 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
295 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
296 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
297 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
298 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
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
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 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
302 {
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 //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
304 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
305 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
306 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
307 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
308 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
309 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
310 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
311 //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
312 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
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
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 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
316 {
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 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
318 //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
319 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
320 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
321 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
322 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
323 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
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
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 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
327 {
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 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
329 //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
330 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
331 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
332 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
333 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
334 //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
335 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
336 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
337 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
338 //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
339 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
340 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
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
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 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
344 {
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 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
346 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
347 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
348 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
349 }
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
350
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
351 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
352 {
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 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
354 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
355 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
356 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
357 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
358 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
359 }
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 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
361 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
362 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
363 }
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 } 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
365 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
366 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
367 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
368 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
369 }
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 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
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 }
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
373
588
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
374 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
375 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
376 code_info *code = &opts->gen.code;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
377 int8_t bit,reg,sec_reg;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
378 uint8_t early_cycles;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
379 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
380 //reg to mem
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
381 early_cycles = 8;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
382 int8_t dir;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
383 switch (inst->dst.addr_mode)
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
384 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
385 case MODE_AREG_INDIRECT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
386 case MODE_AREG_PREDEC:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
387 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
388 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
389 case MODE_AREG_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
390 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
391 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
392 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
393 case MODE_AREG_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
394 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
395 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
396 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
397 case MODE_PC_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
398 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
399 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
400 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
401 case MODE_PC_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
402 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
403 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
404 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
405 case MODE_ABSOLUTE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
406 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
407 case MODE_ABSOLUTE_SHORT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
408 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
409 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
410 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
411 default:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
412 m68k_disasm(inst, disasm_buf);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
413 printf("%X: %s\naddress mode %d not implemented (movem dst)\n", inst->address, disasm_buf, inst->dst.addr_mode);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
414 exit(1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
415 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
416 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
417 reg = 15;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
418 dir = -1;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
419 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
420 reg = 0;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
421 dir = 1;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
422 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
423 cycles(&opts->gen, early_cycles);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
424 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
425 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
426 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
427 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
428 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
429 push_native(opts, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
430 if (reg > 7) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
431 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
432 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
433 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
434 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
435 if (inst->extra.size == OPSIZE_LONG) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
436 call(code, opts->write_32_lowfirst);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
437 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
438 call(code, opts->write_16);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
439 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
440 pop_native(opts, opts->gen.scratch2);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
441 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
442 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
443 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
444 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
445 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
446 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
447 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
448 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
449 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
450 //mem to reg
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
451 early_cycles = 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
452 switch (inst->src.addr_mode)
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
453 {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
454 case MODE_AREG_INDIRECT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
455 case MODE_AREG_POSTINC:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
456 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
457 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
458 case MODE_AREG_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
459 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
460 reg = opts->gen.scratch2;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
461 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
462 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
463 case MODE_AREG_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
464 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
465 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
466 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
467 case MODE_PC_DISPLACE:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
468 early_cycles += BUS;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
469 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
470 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
471 case MODE_PC_INDEX_DISP8:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
472 early_cycles += 6;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
473 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
474 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
475 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
476 case MODE_ABSOLUTE:
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 case MODE_ABSOLUTE_SHORT:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
479 early_cycles += 4;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
480 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
481 break;
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
482 default:
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
483 m68k_disasm(inst, disasm_buf);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
484 printf("%X: %s\naddress mode %d not implemented (movem src)\n", inst->address, disasm_buf, inst->src.addr_mode);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
485 exit(1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
486 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
487 cycles(&opts->gen, early_cycles);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
488 for(reg = 0; reg < 16; reg ++) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
489 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
490 push_native(opts, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
491 if (inst->extra.size == OPSIZE_LONG) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
492 call(code, opts->read_32);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
493 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
494 call(code, opts->read_16);
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 (inst->extra.size == OPSIZE_WORD) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
497 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
498 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
499 if (reg > 7) {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
500 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
501 } else {
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
502 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
503 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
504 pop_native(opts, opts->gen.scratch1);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
505 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
506 }
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 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
509 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
510 }
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 //prefetch
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
513 cycles(&opts->gen, 4);
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
514 }
963d5901f583 Move translate_m68k_movem to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 587
diff changeset
515
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
516 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
517 {
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
518 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
519 }
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
520
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
521 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
522 {
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 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
524 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
525 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
526 }
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
527
687
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
528 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
529 {
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
530 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
531 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
532 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
533 }
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
534
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
535 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
536 {
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
537 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
538 //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
539 //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
540 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
541 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
542 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
543 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
544 //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
545 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
546 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
547 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
548 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
549 //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
550 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
551 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
552 }
a61d33ccea7d Moved translate_m68k_rte and translate_m68k_reset to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 681
diff changeset
553
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
554 code_ptr get_native_address(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
555 {
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
556 //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
557 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
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 {
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
572 return get_native_address(context->native_code_map, 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
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) {
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
639 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
640 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
641 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
642 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
643 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
644 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
645 }
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 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
647 }
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
648 }
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
649
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
650 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
651 {
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
652 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
653 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
654 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
655 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
656 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
657 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
658 }
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 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
660 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
661 } 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
662 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
663 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
664 }
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
665 }
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
666 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
667 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
668 }
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
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
670 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
671 {
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 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
673 || 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
674 || (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
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
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 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
678 {
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 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
680 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
681 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
682 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
683 }
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 }
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
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
686 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
687 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
688 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
689 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
690 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
691 } 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
692
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 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
694 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
695
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 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
697 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
698 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
699 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
700 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
701 } 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
702 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
703 } 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
704
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 #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
706 #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
707 #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
708 #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
709
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 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
711 //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
712 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
713 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
714 //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
715 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
716 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
717 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
718 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
719 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
720 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
721 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
722 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
723 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
724 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
725 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
726 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
727 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
728 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
729 OP_IMPL(M68K_NEGX, translate_m68k_negx),
614
60a06c025103 Fix flag mask for m68k not
Michael Pavone <pavone@retrodev.com>
parents: 588
diff changeset
730 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
731 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
732
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 //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
734 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
735 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
736 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
737 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
738 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
739 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
740 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
741 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
742 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
743
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 //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
745 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
746 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
747 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
748 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
749
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 //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
751 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
752 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
753 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
754 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
755 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
756 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
757 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
758 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
759 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
760
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 //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
762 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
763 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
764 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
765 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
766 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
767 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
768 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
769 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
770 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
771 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
772
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 //SR/CCR stuff
584
b6713c1b6f55 Combine andi ccr/sr and ori ccr/sr.
Michael Pavone <pavone@retrodev.com>
parents: 582
diff changeset
774 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
775 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
776 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
777 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
778 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
779 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
780 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
781 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
782 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
783 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
784
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 //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
786 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
787 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
788 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
789 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
790
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 //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
792 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
793 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
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 //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
796 //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
797 //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
798 //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
799 };
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
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 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
802 {
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 check_cycles_int(&opts->gen, inst->address);
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 692
diff changeset
804 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
805 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
806 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
807 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
808 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
809 }
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
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 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
812 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
813 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
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 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
816 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
817 }
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 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
819 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
820 } 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
821 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
822 } 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
823 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
824 } 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
825 m68k_disasm(inst, disasm_buf);
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 printf("%X: %s\ninstruction %d not yet implemented\n", inst->address, disasm_buf, 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
827 exit(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
828 }
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 }
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
830
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
831 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
832 {
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
833 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
834 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
835 code_info *code = &opts->gen.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
836 if(get_native_address(opts->gen.native_code_map, 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
837 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
838 }
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
839 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
840 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
841 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
842 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
843 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
844 }
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 do {
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
846 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
847 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
848 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
849 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
850 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
851 }
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
852 code_ptr existing = get_native_address(opts->gen.native_code_map, 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
853 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
854 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
855 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
856 }
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 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
858 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
859 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
860 }
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 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
862 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
863 //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
864 //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
865 //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
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 //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
868 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
869 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
870 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
871 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
872 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
873 } 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
874 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
875 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
876 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
877 }
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
878 } 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
879 }
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
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
881 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
882 {
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
883 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
884 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
885 uint8_t orig_size = get_native_inst_size(opts, 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
886 code_ptr orig_start = get_native_address(context->native_code_map, 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
887 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
888 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
889 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
890 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
891 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
892 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
893 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
894 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
895 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
896
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
897 //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
898 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
899 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
900 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
901 code_ptr native_end = code->cur;
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
902 /*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
903 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
904 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
905 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
906 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
907 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
908 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
909 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
910 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
911 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
912 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
913 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
914 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
915 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
916 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
917 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
918 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
919 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
920 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
921 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
922 }
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 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
924 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
925 }
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
926 }*/
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
927
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 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
929
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 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
931 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
932 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
933 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
934 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
935 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
936 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
937 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
938 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
939 } 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
940 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
941 }
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 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
943 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
944 } else {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
945 code_info tmp = *code;
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
946 *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
947 translate_m68k(opts, &instbuf);
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
948 orig_code = *code;
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
949 *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
950 if (!m68k_is_terminal(&instbuf)) {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
951 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
952 }
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 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
954 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
955 }
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 }
55c5b0f913ce Made m68k_retranslate_inst host-cpu generic and moved it to m68k_core.c
Michael Pavone <pavone@retrodev.com>
parents: 584
diff changeset
957
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
958 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
959 {
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
960 //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
961 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
962 code_ptr ret = get_native_address(context->native_code_map, 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
963 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
964 translate_m68k_stream(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
965 ret = get_native_address(context->native_code_map, 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
966 }
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 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
968 }
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
969
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 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
971 {
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 code_ptr native = get_native_address(context->native_code_map, address);
673
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
973 code_info tmp = context->options->gen.code;
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
974 context->options->gen.code.cur = native;
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
975 context->options->gen.code.last = native + 16;
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
976 check_cycles_int(&context->options->gen, address);
673
7f1b5570b2a1 Fix 68K remove_breakpoint
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
977 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
978 }
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
979
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
980 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
981 {
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 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
983 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
984 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
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
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 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
988 {
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
989 //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
990 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
991 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
992 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
993 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
994 }
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
995
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
996
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
997 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
998 {
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
999 m68k_context * context = malloc(sizeof(m68k_context) + ram_size(&opts->gen) / (1 << opts->gen.ram_flags_shift) / 8);
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1000 memset(context, 0, sizeof(m68k_context));
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1001 context->native_code_map = opts->gen.native_code_map;
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1002 context->options = opts;
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1003 context->int_cycle = CYCLE_NEVER;
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1004 context->status = 0x27;
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1005 return context;
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1006 }