Mercurial > repos > blastem
annotate 68kinst.h @ 895:13388ab6d78a
Get Z80 core sort of working again post alignment change
author | Michael Pavone <pavone@retrodev.com> |
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date | Wed, 25 Nov 2015 20:18:34 -0800 |
parents | 8a3198c17207 |
children | 902c53d9c16f |
rev | line source |
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1 /* |
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2 Copyright 2013 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 #ifndef M68KINST_H_ |
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7 #define M68KINST_H_ |
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8 |
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9 #include <stdint.h> |
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10 |
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11 #ifdef M68030 |
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12 #define M68020 |
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13 #endif |
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14 #ifdef M68020 |
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15 #define M68010 |
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16 #endif |
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17 |
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18 typedef enum { |
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19 BIT_MOVEP_IMMED = 0, |
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20 MOVE_BYTE, |
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21 MOVE_LONG, |
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22 MOVE_WORD, |
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23 MISC, |
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24 QUICK_ARITH_LOOP, |
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25 BRANCH, |
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26 MOVEQ, |
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27 OR_DIV_SBCD, |
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28 SUB_SUBX, |
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29 RESERVED, |
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30 CMP_XOR, |
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31 AND_MUL_ABCD_EXG, |
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32 ADD_ADDX, |
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33 SHIFT_ROTATE, |
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34 COPROC |
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35 } m68k_optypes; |
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36 |
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37 typedef enum { |
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38 M68K_ABCD, |
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39 M68K_ADD, |
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40 M68K_ADDX, |
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41 M68K_AND, |
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42 M68K_ANDI_CCR, |
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43 M68K_ANDI_SR, |
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44 M68K_ASL, |
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45 M68K_ASR, |
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46 M68K_BCC, |
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47 M68K_BCHG, |
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48 M68K_BCLR, |
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49 M68K_BSET, |
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50 M68K_BSR, |
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51 M68K_BTST, |
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52 M68K_CHK, |
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53 M68K_CLR, |
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54 M68K_CMP, |
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55 M68K_DBCC, |
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56 M68K_DIVS, |
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57 M68K_DIVU, |
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58 M68K_EOR, |
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59 M68K_EORI_CCR, |
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60 M68K_EORI_SR, |
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61 M68K_EXG, |
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62 M68K_EXT, |
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63 M68K_ILLEGAL, |
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64 M68K_JMP, |
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65 M68K_JSR, |
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66 M68K_LEA, |
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67 M68K_LINK, |
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68 M68K_LSL, |
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69 M68K_LSR, |
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70 M68K_MOVE, |
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71 M68K_MOVE_CCR, |
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72 M68K_MOVE_FROM_SR, |
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73 M68K_MOVE_SR, |
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74 M68K_MOVE_USP, |
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75 M68K_MOVEM, |
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76 M68K_MOVEP, |
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77 M68K_MULS, |
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78 M68K_MULU, |
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79 M68K_NBCD, |
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80 M68K_NEG, |
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81 M68K_NEGX, |
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82 M68K_NOP, |
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83 M68K_NOT, |
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84 M68K_OR, |
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85 M68K_ORI_CCR, |
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86 M68K_ORI_SR, |
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87 M68K_PEA, |
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88 M68K_RESET, |
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89 M68K_ROL, |
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90 M68K_ROR, |
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91 M68K_ROXL, |
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92 M68K_ROXR, |
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93 M68K_RTE, |
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94 M68K_RTR, |
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95 M68K_RTS, |
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96 M68K_SBCD, |
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97 M68K_SCC, |
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98 M68K_STOP, |
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99 M68K_SUB, |
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100 M68K_SUBX, |
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101 M68K_SWAP, |
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102 M68K_TAS, |
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103 M68K_TRAP, |
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104 M68K_TRAPV, |
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105 M68K_TST, |
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106 M68K_UNLK, |
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107 M68K_INVALID, |
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108 #ifdef M68010 |
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109 M68K_BKPT, |
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110 M68K_MOVE_FROM_CCR, |
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111 M68K_MOVEC, |
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112 M68K_MOVES, |
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113 M68K_RTD, |
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114 #endif |
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115 #ifdef M68020 |
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116 M68K_BFCHG, |
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117 M68K_BFCLR, |
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118 M68K_BFEXTS, |
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119 M68K_BFEXTU, |
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120 M68K_BFFFO, |
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121 M68K_BFINS, |
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122 M68K_BFSET, |
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123 M68K_BFTST, |
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124 M68K_CALLM, |
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125 M68K_CAS, |
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126 M68K_CAS2, |
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127 M68K_CHK2, |
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128 M68K_CMP2, |
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129 M68K_CP_BCC, |
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130 M68K_CP_DBCC, |
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131 M68K_CP_GEN, |
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132 M68K_CP_RESTORE, |
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133 M68K_CP_SAVE, |
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134 M68K_CP_SCC, |
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135 M68K_CP_TRAPCC, |
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136 M68K_DIVSL, |
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137 M68K_DIVUL, |
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138 M68K_EXTB, |
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139 M68K_PACK, |
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140 M68K_RTM, |
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141 M68K_TRAPCC, |
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142 M68K_UNPK, |
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143 #endif |
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144 } m68K_op; |
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145 |
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146 typedef enum { |
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147 VAR_NORMAL, |
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148 VAR_QUICK, |
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149 VAR_IMMEDIATE, |
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150 VAR_BYTE, |
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151 VAR_WORD, |
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152 VAR_LONG |
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153 } m68K_variant; |
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154 |
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155 typedef enum { |
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156 OPSIZE_BYTE=0, |
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157 OPSIZE_WORD, |
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158 OPSIZE_LONG, |
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159 OPSIZE_INVALID, |
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160 OPSIZE_UNSIZED |
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161 } m68K_opsizes; |
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162 |
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163 typedef enum { |
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164 //actual addressing mode field values |
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165 MODE_REG = 0, |
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166 MODE_AREG, |
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167 MODE_AREG_INDIRECT, |
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168 MODE_AREG_POSTINC, |
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169 MODE_AREG_PREDEC, |
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170 MODE_AREG_DISPLACE, |
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171 MODE_AREG_INDEX_MEM, //bunch of relatively complicated modes |
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172 MODE_PC_INDIRECT_ABS_IMMED, //Modes that use the program counter, an absolute address or immediate value |
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173 //expanded values |
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174 MODE_AREG_INDEX_DISP8, |
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175 #ifdef M68020 |
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176 MODE_AREG_INDEX_BASE_DISP, |
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177 MODE_AREG_PREINDEX, |
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178 MODE_AREG_POSTINDEX, |
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179 MODE_AREG_MEM_INDIRECT, |
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180 MODE_AREG_BASE_DISP, |
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181 MODE_INDEX_BASE_DISP, |
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182 MODE_PREINDEX, |
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183 MODE_POSTINDEX, |
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184 MODE_MEM_INDIRECT, |
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185 MODE_BASE_DISP, |
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186 #endif |
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187 MODE_ABSOLUTE_SHORT, |
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188 MODE_ABSOLUTE, |
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189 MODE_PC_DISPLACE, |
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190 MODE_PC_INDEX_DISP8, |
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191 #ifdef M68020 |
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192 MODE_PC_INDEX_BASE_DISP, |
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193 MODE_PC_PREINDEX, |
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194 MODE_PC_POSTINDEX, |
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195 MODE_PC_MEM_INDIRECT, |
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196 MODE_PC_BASE_DISP, |
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197 MODE_ZPC_INDEX_BASE_DISP, |
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198 MODE_ZPC_PREINDEX, |
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199 MODE_ZPC_POSTINDEX, |
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200 MODE_ZPC_MEM_INDIRECT, |
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201 MODE_ZPC_BASE_DISP, |
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202 #endif |
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203 MODE_IMMEDIATE, |
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204 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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205 MODE_UNUSED |
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206 } m68k_addr_modes; |
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207 #ifdef M68020 |
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208 #define M68K_FLAG_BITFIELD 0x80 |
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209 #endif |
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210 |
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211 typedef enum { |
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212 COND_TRUE, |
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213 COND_FALSE, |
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214 COND_HIGH, |
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215 COND_LOW_SAME, |
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216 COND_CARRY_CLR, |
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217 COND_CARRY_SET, |
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218 COND_NOT_EQ, |
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219 COND_EQ, |
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220 COND_OVERF_CLR, |
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221 COND_OVERF_SET, |
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222 COND_PLUS, |
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223 COND_MINUS, |
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224 COND_GREATER_EQ, |
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225 COND_LESS, |
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226 COND_GREATER, |
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227 COND_LESS_EQ |
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228 } m68K_condition; |
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229 |
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230 #ifdef M68010 |
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231 typedef enum { |
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232 CR_SFC, |
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233 CR_DFC, |
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234 #ifdef M68020 |
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235 CR_CACR, |
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236 #endif |
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237 CR_USP, |
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238 CR_VBR, |
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239 #ifdef M68020 |
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240 CR_CAAR, |
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241 CR_MSP, |
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242 CR_ISP |
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243 #endif |
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244 } m68k_control_reg; |
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245 |
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246 #ifdef M68020 |
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247 #define MAX_HIGH_CR 0x804 |
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248 #define MAX_LOW_CR 0x002 |
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249 #else |
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250 #define MAX_HIGH_CR 0x801 |
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251 #define MAX_LOW_CR 0x001 |
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252 #endif |
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253 |
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254 #endif |
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255 |
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256 typedef struct { |
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257 #ifdef M68020 |
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258 uint16_t bitfield; |
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259 #endif |
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260 uint8_t addr_mode; |
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261 union { |
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262 struct { |
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263 uint8_t pri; |
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264 uint8_t sec; |
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265 #ifdef M68020 |
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266 uint8_t scale; |
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267 uint8_t disp_sizes; |
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268 #endif |
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269 int32_t displacement; |
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270 #ifdef M68020 |
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271 int32_t outer_disp; |
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272 #endif |
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273 } regs; |
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274 uint32_t immed; |
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275 } params; |
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276 } m68k_op_info; |
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277 |
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278 typedef struct m68kinst { |
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279 uint8_t op; |
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280 uint8_t variant; |
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281 union { |
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282 uint8_t size; |
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283 uint8_t cond; |
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284 } extra; |
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285 uint32_t address; |
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286 m68k_op_info src; |
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287 m68k_op_info dst; |
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288 } m68kinst; |
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289 |
226
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290 typedef enum { |
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291 VECTOR_RESET_STACK, |
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292 VECTOR_RESET_PC, |
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293 VECTOR_ACCESS_FAULT, |
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294 VECTOR_ADDRESS_ERROR, |
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295 VECTOR_ILLEGAL_INST, |
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296 VECTOR_INT_DIV_ZERO, |
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297 VECTOR_CHK, |
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298 VECTOR_TRAPV, |
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299 VECTOR_PRIV_VIOLATION, |
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300 VECTOR_TRACE, |
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301 VECTOR_LINE_1010, |
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302 VECTOR_LINE_1111, |
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303 VECTOR_COPROC_VIOLATION=13, |
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304 VECTOR_FORMAT_ERROR, |
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305 VECTOR_UNINIT_INTERRUPT, |
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306 VECTOR_SPURIOUS_INTERRUPT=24, |
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307 VECTOR_INT_1, |
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308 VECTOR_INT_2, |
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309 VECTOR_INT_3, |
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310 VECTOR_INT_4, |
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311 VECTOR_INT_5, |
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312 VECTOR_INT_6, |
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313 VECTOR_INT_7, |
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314 VECTOR_TRAP_0, |
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315 VECTOR_TRAP_1, |
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316 VECTOR_TRAP_2, |
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317 VECTOR_TRAP_3, |
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318 VECTOR_TRAP_4, |
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319 VECTOR_TRAP_5, |
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320 VECTOR_TRAP_6, |
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321 VECTOR_TRAP_7, |
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322 VECTOR_TRAP_8, |
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323 VECTOR_TRAP_9, |
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324 VECTOR_TRAP_10, |
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325 VECTOR_TRAP_11, |
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326 VECTOR_TRAP_12, |
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327 VECTOR_TRAP_13, |
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328 VECTOR_TRAP_14, |
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329 VECTOR_TRAP_15 |
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330 } m68k_vector; |
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331 |
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332 typedef int (*format_label_fun)(char * dst, uint32_t address, void * data); |
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333 |
18
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334 uint16_t * m68k_decode(uint16_t * istream, m68kinst * dst, uint32_t address); |
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335 uint32_t m68k_branch_target(m68kinst * inst, uint32_t *dregs, uint32_t *aregs); |
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336 uint8_t m68k_is_branch(m68kinst * inst); |
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337 uint8_t m68k_is_noncall_branch(m68kinst * inst); |
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338 int m68k_disasm(m68kinst * decoded, char * dst); |
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339 int m68k_disasm_labels(m68kinst * decoded, char * dst, format_label_fun label_fun, void * data); |
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340 int m68k_default_label_fun(char * dst, uint32_t address, void * data); |
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341 |
14
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342 #endif |
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343 |