Mercurial > repos > blastem
annotate ztestgen.c @ 391:3f4f2b7318a1
Check memory results in ztestgen
author | Mike Pavone <pavone@retrodev.com> |
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date | Sat, 08 Jun 2013 12:59:23 -0700 |
parents | 170722e80fc0 |
children | a09aa6d067fd |
rev | line source |
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1 #include "z80inst.h" |
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2 #include <stdlib.h> |
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3 #include <string.h> |
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4 #include <stdint.h> |
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5 #include <stdio.h> |
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6 #include <sys/stat.h> |
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7 #include <sys/types.h> |
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8 #include <errno.h> |
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9 |
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10 extern z80inst z80_tbl_a[256]; |
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11 extern z80inst z80_tbl_extd[0xC0-0x40]; |
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12 extern z80inst z80_tbl_bit[256]; |
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13 extern z80inst z80_tbl_ix[256]; |
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14 extern z80inst z80_tbl_iy[256]; |
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15 extern z80inst z80_tbl_ix_bit[256]; |
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16 extern z80inst z80_tbl_iy_bit[256]; |
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17 extern char *z80_mnemonics[Z80_OTDR+1]; |
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18 extern char * z80_regs[Z80_USE_IMMED]; |
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19 #define PRE_IX 0xDD |
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20 #define PRE_IY 0xFD |
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21 #define LD_IR16 0x01 |
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22 #define LD_IR8 0x06 |
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23 #define LD_RR8 0x40 |
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24 #define PUSH 0xC5 |
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25 #define POP 0xC1 |
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26 |
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27 uint8_t * ld_ir16(uint8_t * dst, uint8_t reg, uint16_t val) |
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28 { |
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29 if (reg == Z80_IX) { |
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30 *(dst++) = PRE_IX; |
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31 return ld_ir16(dst, Z80_HL, val); |
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32 } else if(reg == Z80_IY) { |
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33 *(dst++) = PRE_IY; |
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34 return ld_ir16(dst, Z80_HL, val); |
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35 } else { |
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36 *(dst++) = LD_IR16 | ((reg - Z80_BC) << 4); |
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37 *(dst++) = val & 0xFF; |
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38 *(dst++) = val >> 8; |
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39 return dst; |
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40 } |
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41 } |
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42 |
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43 uint8_t * ld_ir8(uint8_t * dst, uint8_t reg, uint8_t val) |
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44 { |
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45 if (reg <= Z80_H) { |
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46 reg = (reg - Z80_C) ^ 1; |
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47 } else { |
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48 reg = 0x7; |
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49 } |
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50 *(dst++) = LD_IR8 | (reg << 3); |
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51 *(dst++) = val; |
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52 return dst; |
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53 } |
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54 |
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55 uint8_t * ld_rr8(uint8_t * dst, uint8_t src, uint8_t dstr) |
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56 { |
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57 if (src <= Z80_H) { |
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58 src = (src - Z80_C) ^ 1; |
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59 } else { |
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60 src = 0x7; |
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61 } |
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62 if (dstr <= Z80_H) { |
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63 dstr = (dstr - Z80_C) ^ 1; |
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64 } else { |
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65 dstr = 0x7; |
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66 } |
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67 *(dst++) = LD_RR8 | (dstr << 3) | src; |
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68 return dst; |
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69 } |
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70 |
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71 uint8_t * ld_amem(uint8_t * dst, uint16_t address) |
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72 { |
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73 *(dst++) = 0x32; |
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74 *(dst++) = address & 0xFF; |
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75 *(dst++) = address >> 8; |
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76 return dst; |
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77 } |
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78 |
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79 uint8_t * ld_mema(uint8_t * dst, uint16_t address) |
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80 { |
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81 *(dst++) = 0x3A; |
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82 *(dst++) = address & 0xFF; |
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83 *(dst++) = address >> 8; |
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84 return dst; |
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85 } |
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86 |
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87 uint8_t * push(uint8_t * dst, uint8_t reg) |
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88 { |
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89 if (reg == Z80_IX) { |
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90 *(dst++) = PRE_IX; |
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91 return push(dst, Z80_HL); |
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92 } else if(reg == Z80_IY) { |
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93 *(dst++) = PRE_IY; |
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94 return push(dst, Z80_HL); |
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95 } else { |
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96 if (reg == Z80_AF) { |
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97 reg--; |
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98 } |
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99 *(dst++) = PUSH | ((reg - Z80_BC) << 4); |
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100 return dst; |
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101 } |
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102 } |
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103 |
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104 uint8_t * pop(uint8_t * dst, uint8_t reg) |
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105 { |
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106 if (reg == Z80_IX) { |
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107 *(dst++) = PRE_IX; |
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108 return pop(dst, Z80_HL); |
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109 } else if(reg == Z80_IY) { |
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110 *(dst++) = PRE_IY; |
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111 return pop(dst, Z80_HL); |
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112 } else { |
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113 if (reg == Z80_AF) { |
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114 reg--; |
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115 } |
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116 *(dst++) = POP | ((reg - Z80_BC) << 4); |
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117 return dst; |
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118 } |
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119 } |
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120 |
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121 void z80_gen_test(z80inst * inst, uint8_t *instbuf, uint8_t instlen) |
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122 { |
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123 z80inst copy; |
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124 uint16_t reg_values[Z80_UNUSED]; |
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125 uint8_t reg_usage[Z80_UNUSED]; |
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126 memset(reg_values, 0, sizeof(reg_values)); |
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127 memset(reg_usage, 0, sizeof(reg_usage)); |
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128 uint8_t addr_mode = inst->addr_mode & 0x1F; |
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129 uint8_t word_sized = ((inst->reg != Z80_USE_IMMED && inst->reg != Z80_UNUSED && inst->reg >= Z80_BC) || (addr_mode == Z80_REG && inst->ea_reg >= Z80_BC)) ? 1 : 0; |
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130 |
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131 if (inst->reg == Z80_USE_IMMED || addr_mode == Z80_IMMED || addr_mode == Z80_IMMED_INDIRECT |
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132 || addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) |
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133 { |
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134 memcpy(©, inst, sizeof(copy)); |
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135 inst = © |
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136 if ((inst->reg == Z80_USE_IMMED && inst->op != Z80_BIT && inst->op != Z80_RES && inst->op != Z80_SET) |
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137 || (addr_mode == Z80_IMMED && inst->op != Z80_IM)) |
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138 { |
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139 copy.immed = rand() % (word_sized ? 65536 : 256); |
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140 } |
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141 if (addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) { |
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142 copy.ea_reg = rand() % 256; |
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143 } |
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144 if (addr_mode == Z80_IMMED_INDIRECT) { |
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145 copy.immed = 0x1000 + (rand() % 256 - 128); |
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146 } |
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147 } |
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148 uint8_t is_mem = 0; |
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149 uint16_t address; |
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150 int16_t offset; |
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151 switch(addr_mode) |
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152 { |
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153 case Z80_REG: |
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154 reg_usage[inst->ea_reg] = 1; |
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155 if (word_sized) { |
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156 reg_values[inst->ea_reg] = rand() % 65536; |
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157 reg_values[z80_high_reg(inst->ea_reg)] = reg_values[inst->ea_reg] >> 8; |
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158 reg_usage[z80_high_reg(inst->ea_reg)] = 1; |
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159 reg_values[z80_low_reg(inst->ea_reg)] = reg_values[inst->ea_reg] & 0xFF; |
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160 reg_usage[z80_low_reg(inst->ea_reg)] = 1; |
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161 } else { |
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162 reg_values[inst->ea_reg] = rand() % 256; |
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163 uint8_t word_reg = z80_word_reg(inst->ea_reg); |
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164 if (word_reg != Z80_UNUSED) { |
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165 reg_usage[word_reg] = 1; |
292
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166 reg_values[word_reg] = (reg_values[z80_high_reg(word_reg)] << 8) | (reg_values[z80_low_reg(word_reg)] & 0xFF); |
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167 } |
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168 } |
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169 break; |
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170 case Z80_REG_INDIRECT: |
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171 is_mem = 1; |
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172 reg_values[inst->ea_reg] = 0x1000 + (rand() % 256 - 128); |
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173 reg_usage[inst->ea_reg] = 1; |
292
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174 address = reg_values[inst->ea_reg]; |
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175 reg_usage[z80_high_reg(inst->ea_reg)] = 1; |
292
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176 reg_values[z80_high_reg(inst->ea_reg)] = reg_values[inst->ea_reg] >> 8; |
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177 reg_usage[z80_low_reg(inst->ea_reg)] = 1; |
292
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178 reg_values[z80_low_reg(inst->ea_reg)] = reg_values[inst->ea_reg] & 0xFF; |
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179 break; |
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180 case Z80_IMMED_INDIRECT: |
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181 is_mem = 1; |
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182 address = inst->immed; |
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183 break; |
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184 case Z80_IX_DISPLACE: |
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185 reg_values[Z80_IX] = 0x1000; |
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186 reg_usage[Z80_IX] = 1; |
292
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187 reg_values[Z80_IXH] = 0x10; |
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188 reg_usage[Z80_IXH] = 1; |
292
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189 reg_values[Z80_IXL] = 0; |
391
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190 reg_usage[Z80_IXL] = 1; |
292
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191 is_mem = 1; |
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|
192 offset = inst->ea_reg; |
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193 if (offset > 0x7F) { |
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194 offset -= 256; |
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|
195 } |
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|
196 address = 0x1000 + offset; |
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197 break; |
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198 case Z80_IY_DISPLACE: |
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199 reg_values[Z80_IY] = 0x1000; |
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200 reg_usage[Z80_IY] = 1; |
292
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201 reg_values[Z80_IYH] = 0x10; |
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202 reg_usage[Z80_IYH] = 1; |
292
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203 reg_values[Z80_IYL] = 0; |
391
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204 reg_usage[Z80_IYL] = 1; |
292
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205 is_mem = 1; |
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|
206 offset = inst->ea_reg; |
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|
207 if (offset > 0x7F) { |
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208 offset -= 256; |
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|
209 } |
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|
210 address = 0x1000 + offset; |
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|
211 break; |
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|
212 } |
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|
213 if (inst->reg != Z80_UNUSED && inst->reg != Z80_USE_IMMED) { |
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diff
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214 reg_usage[inst->reg] = 1; |
292
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215 if (word_sized) { |
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|
216 reg_values[inst->reg] = rand() % 65536; |
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217 reg_usage[z80_high_reg(inst->reg)] = 1; |
292
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218 reg_values[z80_high_reg(inst->reg)] = reg_values[inst->reg] >> 8; |
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219 reg_usage[z80_low_reg(inst->reg)] = 1; |
292
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220 reg_values[z80_low_reg(inst->reg)] = reg_values[inst->reg] & 0xFF; |
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|
221 } else { |
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|
222 reg_values[inst->reg] = rand() % 255; |
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223 uint8_t word_reg = z80_word_reg(inst->reg); |
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|
224 if (word_reg != Z80_UNUSED) { |
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225 reg_usage[word_reg] = 1; |
292
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226 reg_values[word_reg] = (reg_values[z80_high_reg(word_reg)] << 8) | (reg_values[z80_low_reg(word_reg)] & 0xFF); |
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|
227 } |
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|
228 } |
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|
229 } |
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|
230 puts("--------------"); |
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|
231 for (uint8_t reg = 0; reg < Z80_UNUSED; reg++) { |
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|
232 if (reg_values[reg]) { |
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|
233 printf("%s: %X\n", z80_regs[reg], reg_values[reg]); |
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|
234 } |
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|
235 } |
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diff
changeset
|
236 char disbuf[80]; |
391
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|
237 z80_disasm(inst, disbuf, 0); |
292
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|
238 puts(disbuf); |
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|
239 char pathbuf[128]; |
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diff
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|
240 sprintf(pathbuf, "ztests/%s", z80_mnemonics[inst->op]); |
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diff
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|
241 if (mkdir(pathbuf, 0777) != 0) { |
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diff
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|
242 if (errno != EEXIST) { |
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parents:
diff
changeset
|
243 fprintf(stderr, "Failed to create directory %s\n", disbuf); |
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diff
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|
244 exit(1); |
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245 } |
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246 } |
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247 uint8_t prog[200]; |
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248 uint8_t *cur = prog; |
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249 uint8_t mem_val; |
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250 //disable interrupts |
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251 *(cur++) = 0xF3; |
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252 //setup SP |
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253 cur = ld_ir16(cur, Z80_SP, 0x2000); |
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254 //setup memory |
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255 if (is_mem) { |
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256 mem_val = rand() % 256; |
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257 cur = ld_ir8(cur, Z80_A, mem_val); |
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258 cur = ld_amem(cur, address); |
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259 } |
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260 //setup AF |
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261 cur = ld_ir16(cur, Z80_BC, reg_values[Z80_A] << 8); |
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262 cur = push(cur, Z80_BC); |
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263 cur = pop(cur, Z80_AF); |
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264 |
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265 //setup other regs |
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266 for (uint8_t reg = Z80_BC; reg <= Z80_IY; reg++) { |
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267 if (reg != Z80_AF && reg != Z80_SP) { |
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268 cur = ld_ir16(cur, reg, reg_values[reg]); |
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269 } |
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270 } |
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271 |
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272 //copy instruction |
298
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273 if (instlen == 3) { |
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274 memcpy(cur, instbuf, 2); |
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275 cur += 2; |
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276 } else { |
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277 memcpy(cur, instbuf, instlen); |
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278 cur += instlen; |
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279 } |
292
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280 |
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281 //immed/displacement byte(s) |
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282 if (addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) { |
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283 *(cur++) = inst->ea_reg; |
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284 } else if (addr_mode == Z80_IMMED & inst->op != Z80_IM) { |
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285 *(cur++) = inst->immed & 0xFF; |
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286 if (word_sized) { |
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287 *(cur++) = inst->immed >> 8; |
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288 } |
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289 } else if (addr_mode == Z80_IMMED_INDIRECT) { |
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290 *(cur++) = inst->immed & 0xFF; |
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291 *(cur++) = inst->immed >> 8; |
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292 } |
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293 if (inst->reg == Z80_USE_IMMED && inst->op != Z80_BIT && inst->op != Z80_RES && inst->op != Z80_SET) { |
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294 *(cur++) = inst->immed & 0xFF; |
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295 } |
298
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296
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296 if (instlen == 3) { |
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297 *(cur++) = instbuf[2]; |
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|
298 } |
292
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299 |
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300 for (char * cur = disbuf; *cur != 0; cur++) { |
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301 if (*cur == ',' || *cur == ' ') { |
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302 *cur = '_'; |
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303 } |
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304 } |
391
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|
305 //save memory result |
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306 if (is_mem) { |
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307 if (reg_usage[Z80_A]) { |
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308 cur = push(cur, Z80_AF); |
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309 } |
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310 cur = ld_mema(cur, address); |
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311 if (reg_usage[Z80_A]) { |
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312 for (int reg = 0; reg < Z80_I; reg++) { |
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|
313 if (!reg_usage[reg]) { |
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314 cur = ld_rr8(cur, Z80_A, reg); |
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|
315 break; |
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|
316 } |
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|
317 } |
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318 cur = pop(cur, Z80_AF); |
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|
319 } |
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|
320 } |
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|
321 |
292
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322 //halt |
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|
323 *(cur++) = 0x76; |
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|
324 sprintf(pathbuf + strlen(pathbuf), "/%s.bin", disbuf); |
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325 FILE * progfile = fopen(pathbuf, "wb"); |
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326 fwrite(prog, 1, cur - prog, progfile); |
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|
327 fclose(progfile); |
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|
328 } |
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|
329 |
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|
330 |
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|
331 uint8_t should_skip(z80inst * inst) |
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|
332 { |
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|
333 return inst->op >= Z80_JP || (inst->op >= Z80_LDI && inst->op <= Z80_CPDR) || inst->op == Z80_HALT |
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334 || inst->op == Z80_DAA || inst->op == Z80_RLD || inst->op == Z80_RRD || inst->op == Z80_NOP |
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335 || inst->op == Z80_DI || inst->op == Z80_EI; |
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|
336 } |
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|
337 |
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|
338 void z80_gen_all() |
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|
339 { |
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|
340 uint8_t inst[3]; |
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|
341 for (int op = 0; op < 256; op++) { |
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|
342 inst[0] = op; |
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|
343 if (op == 0xCB) { |
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|
344 for (int subop = 0; subop < 256; subop++) { |
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|
345 if (!should_skip(z80_tbl_bit + subop)) { |
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|
346 inst[1] = subop; |
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|
347 z80_gen_test(z80_tbl_bit + subop, inst, 2); |
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|
348 } |
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|
349 } |
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|
350 } else if(op == 0xDD) { |
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|
351 for (int ixop = 0; ixop < 256; ixop++) { |
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|
352 inst[1] = ixop; |
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|
353 if (ixop == 0xCB) { |
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|
354 for (int subop = 0; subop < 256; subop++) { |
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355 if (!should_skip(z80_tbl_ix_bit + subop)) { |
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|
356 inst[2] = subop; |
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|
357 z80_gen_test(z80_tbl_ix_bit + subop, inst, 3); |
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|
358 } |
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|
359 } |
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|
360 } else { |
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|
361 if (!should_skip(z80_tbl_ix + ixop)) { |
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|
362 z80_gen_test(z80_tbl_ix + ixop, inst, 2); |
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|
363 } |
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|
364 } |
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|
365 } |
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|
366 } else if(op == 0xED) { |
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|
367 for (int subop = 0; subop < sizeof(z80_tbl_extd)/sizeof(z80inst); subop++) { |
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|
368 if (!should_skip(z80_tbl_extd + subop)) { |
296
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369 inst[1] = subop + 0x40; |
292
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370 z80_gen_test(z80_tbl_extd + subop, inst, 2); |
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371 } |
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372 } |
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373 } else if(op == 0xFD) { |
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374 for (int iyop = 0; iyop < 256; iyop++) { |
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375 inst[1] = iyop; |
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376 if (iyop == 0xCB) { |
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377 for (int subop = 0; subop < 256; subop++) { |
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378 if (!should_skip(z80_tbl_iy_bit + subop)) { |
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379 inst[2] = subop; |
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380 z80_gen_test(z80_tbl_iy_bit + subop, inst, 3); |
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381 } |
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382 } |
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383 } else { |
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384 if (!should_skip(z80_tbl_iy + iyop)) { |
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385 z80_gen_test(z80_tbl_iy + iyop, inst, 2); |
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386 } |
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387 } |
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388 } |
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389 } else { |
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390 if (!should_skip(z80_tbl_a + op)) { |
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391 z80_gen_test(z80_tbl_a + op, inst, 1); |
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392 } |
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393 } |
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394 } |
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395 } |
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396 |
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397 int main(int argc, char ** argv) |
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398 { |
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399 z80_gen_all(); |
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400 return 0; |
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401 } |