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annotate 68kinst.h @ 572:0f32f52fc98e

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Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
author Michael Pavone <pavone@retrodev.com>
date Mon, 03 Mar 2014 21:08:43 -0800
parents 775802dab98f
children 47123183c336
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rev   line source
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1 /*
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2 Copyright 2013 Michael Pavone
518
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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 #ifndef M68KINST_H_
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7 #define M68KINST_H_
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8
0
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9 #include <stdint.h>
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10
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11 typedef enum {
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12 BIT_MOVEP_IMMED = 0,
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13 MOVE_BYTE,
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14 MOVE_LONG,
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15 MOVE_WORD,
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16 MISC,
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17 QUICK_ARITH_LOOP,
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18 BRANCH,
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19 MOVEQ,
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20 OR_DIV_SBCD,
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21 SUB_SUBX,
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22 RESERVED,
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23 CMP_XOR,
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24 AND_MUL_ABCD_EXG,
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25 ADD_ADDX,
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26 SHIFT_ROTATE,
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27 COPROC
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28 } m68k_optypes;
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29
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30 typedef enum {
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31 M68K_ABCD,
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32 M68K_ADD,
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33 M68K_ADDX,
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34 M68K_AND,
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35 M68K_ANDI_CCR,
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36 M68K_ANDI_SR,
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37 M68K_ASL,
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38 M68K_ASR,
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39 M68K_BCC,
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40 M68K_BCHG,
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41 M68K_BCLR,
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42 M68K_BSET,
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43 M68K_BSR,
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44 M68K_BTST,
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45 M68K_CHK,
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46 M68K_CLR,
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47 M68K_CMP,
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48 M68K_DBCC,
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49 M68K_DIVS,
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50 M68K_DIVU,
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51 M68K_EOR,
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52 M68K_EORI_CCR,
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53 M68K_EORI_SR,
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54 M68K_EXG,
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55 M68K_EXT,
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56 M68K_ILLEGAL,
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57 M68K_JMP,
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58 M68K_JSR,
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59 M68K_LEA,
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60 M68K_LINK,
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61 M68K_LSL,
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62 M68K_LSR,
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63 M68K_MOVE,
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64 M68K_MOVE_CCR,
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65 M68K_MOVE_FROM_SR,
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66 M68K_MOVE_SR,
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67 M68K_MOVE_USP,
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68 M68K_MOVEM,
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69 M68K_MOVEP,
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70 M68K_MULS,
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71 M68K_MULU,
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72 M68K_NBCD,
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73 M68K_NEG,
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74 M68K_NEGX,
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75 M68K_NOP,
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76 M68K_NOT,
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77 M68K_OR,
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78 M68K_ORI_CCR,
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79 M68K_ORI_SR,
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80 M68K_PEA,
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81 M68K_RESET,
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82 M68K_ROL,
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83 M68K_ROR,
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84 M68K_ROXL,
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85 M68K_ROXR,
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86 M68K_RTE,
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87 M68K_RTR,
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88 M68K_RTS,
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89 M68K_SBCD,
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90 M68K_SCC,
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91 M68K_STOP,
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92 M68K_SUB,
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93 M68K_SUBX,
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94 M68K_SWAP,
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95 M68K_TAS,
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96 M68K_TRAP,
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97 M68K_TRAPV,
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98 M68K_TST,
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99 M68K_UNLK,
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100 M68K_INVALID
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101 } m68K_op;
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102
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103 typedef enum {
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104 VAR_NORMAL,
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105 VAR_QUICK,
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106 VAR_IMMEDIATE,
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107 VAR_BYTE,
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108 VAR_WORD,
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109 VAR_LONG
0
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110 } m68K_variant;
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111
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112 typedef enum {
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113 OPSIZE_BYTE=0,
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114 OPSIZE_WORD,
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115 OPSIZE_LONG,
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116 OPSIZE_INVALID,
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117 OPSIZE_UNSIZED
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118 } m68K_opsizes;
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119
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120 typedef enum {
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121 //actual addressing mode field values
0
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122 MODE_REG = 0,
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123 MODE_AREG,
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124 MODE_AREG_INDIRECT,
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125 MODE_AREG_POSTINC,
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126 MODE_AREG_PREDEC,
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127 MODE_AREG_DISPLACE,
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128 MODE_AREG_INDEX_MEM, //bunch of relatively complicated modes
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129 MODE_PC_INDIRECT_ABS_IMMED, //Modes that use the program counter, an absolute address or immediate value
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130 //expanded values
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131 MODE_AREG_INDEX_DISP8,
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132 #ifdef M68020
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133 MODE_AREG_INDEX_DISP32,
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134 #endif
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135 MODE_ABSOLUTE_SHORT,
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136 MODE_ABSOLUTE,
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137 MODE_PC_DISPLACE,
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138 MODE_PC_INDEX_DISP8,
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139 #ifdef M68020
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140 MODE_PC_INDEX_DISP32,
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141 #endif
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142 MODE_IMMEDIATE,
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143 MODE_IMMEDIATE_WORD,//used to indicate an immediate operand that only uses a single extension word even for a long operation
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144 MODE_UNUSED
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145 } m68k_addr_modes;
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146
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147 typedef enum {
2
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148 COND_TRUE,
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149 COND_FALSE,
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150 COND_HIGH,
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151 COND_LOW_SAME,
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152 COND_CARRY_CLR,
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153 COND_CARRY_SET,
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154 COND_NOT_EQ,
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155 COND_EQ,
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156 COND_OVERF_CLR,
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157 COND_OVERF_SET,
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158 COND_PLUS,
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159 COND_MINUS,
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160 COND_GREATER_EQ,
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161 COND_LESS,
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162 COND_GREATER,
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163 COND_LESS_EQ
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164 } m68K_condition;
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165
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166 typedef struct {
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167 uint8_t addr_mode;
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168 union {
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169 struct {
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170 uint8_t pri;
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171 uint8_t sec;
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172 int32_t displacement;
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173 } regs;
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174 uint32_t immed;
0
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175 } params;
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176 } m68k_op_info;
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177
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178 typedef struct m68kinst {
0
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179 uint8_t op;
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180 uint8_t variant;
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181 union {
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182 uint8_t size;
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183 uint8_t cond;
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184 } extra;
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185 uint32_t address;
0
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186 m68k_op_info src;
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187 m68k_op_info dst;
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188 } m68kinst;
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189
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190 typedef enum {
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191 VECTOR_RESET_STACK,
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192 VECTOR_RESET_PC,
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193 VECTOR_ACCESS_FAULT,
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194 VECTOR_ADDRESS_ERROR,
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195 VECTOR_ILLEGAL_INST,
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196 VECTOR_INT_DIV_ZERO,
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197 VECTOR_CHK,
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198 VECTOR_TRAPV,
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199 VECTOR_PRIV_VIOLATION,
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200 VECTOR_TRACE,
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201 VECTOR_LINE_1010,
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202 VECTOR_LINE_1111,
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203 VECTOR_COPROC_VIOLATION=13,
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204 VECTOR_FORMAT_ERROR,
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205 VECTOR_UNINIT_INTERRUPT,
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206 VECTOR_SPURIOUS_INTERRUPT=24,
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207 VECTOR_INT_1,
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208 VECTOR_INT_2,
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209 VECTOR_INT_3,
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210 VECTOR_INT_4,
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211 VECTOR_INT_5,
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212 VECTOR_INT_6,
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213 VECTOR_INT_7,
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214 VECTOR_TRAP_0,
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215 VECTOR_TRAP_1,
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216 VECTOR_TRAP_2,
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217 VECTOR_TRAP_3,
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218 VECTOR_TRAP_4,
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219 VECTOR_TRAP_5,
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220 VECTOR_TRAP_6,
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221 VECTOR_TRAP_7,
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222 VECTOR_TRAP_8,
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223 VECTOR_TRAP_9,
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224 VECTOR_TRAP_10,
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225 VECTOR_TRAP_11,
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226 VECTOR_TRAP_12,
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227 VECTOR_TRAP_13,
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228 VECTOR_TRAP_14,
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229 VECTOR_TRAP_15
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230 } m68k_vector;
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231
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232 uint16_t * m68k_decode(uint16_t * istream, m68kinst * dst, uint32_t address);
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233 uint32_t m68k_branch_target(m68kinst * inst, uint32_t *dregs, uint32_t *aregs);
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234 uint8_t m68k_is_branch(m68kinst * inst);
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235 uint8_t m68k_is_noncall_branch(m68kinst * inst);
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236 int m68k_disasm(m68kinst * decoded, char * dst);
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237 int m68k_disasm_labels(m68kinst * decoded, char * dst);
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238
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239 #endif
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240