Mercurial > repos > blastem
annotate ztestgen.c @ 565:9324f721efa6
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
author | Michael Pavone <pavone@retrodev.com> |
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date | Sat, 01 Mar 2014 17:11:06 -0800 |
parents | b7b7a1cab44a |
children | 33ff0171301b |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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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 "z80inst.h" |
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7 #include <stdlib.h> |
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8 #include <string.h> |
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9 #include <stdint.h> |
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10 #include <stdio.h> |
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11 #include <sys/stat.h> |
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12 #include <sys/types.h> |
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13 #include <errno.h> |
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14 |
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15 extern z80inst z80_tbl_a[256]; |
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16 extern z80inst z80_tbl_extd[0xC0-0x40]; |
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17 extern z80inst z80_tbl_bit[256]; |
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18 extern z80inst z80_tbl_ix[256]; |
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19 extern z80inst z80_tbl_iy[256]; |
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20 extern z80inst z80_tbl_ix_bit[256]; |
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21 extern z80inst z80_tbl_iy_bit[256]; |
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22 extern char *z80_mnemonics[Z80_OTDR+1]; |
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23 extern char * z80_regs[Z80_USE_IMMED]; |
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24 #define PRE_IX 0xDD |
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25 #define PRE_IY 0xFD |
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26 #define LD_IR16 0x01 |
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27 #define LD_IR8 0x06 |
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28 #define LD_RR8 0x40 |
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29 #define AND_R 0xA0 |
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30 #define PUSH 0xC5 |
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31 #define POP 0xC1 |
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32 |
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33 uint8_t * ld_ir16(uint8_t * dst, uint8_t reg, uint16_t val) |
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34 { |
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35 if (reg == Z80_IX) { |
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36 *(dst++) = PRE_IX; |
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37 return ld_ir16(dst, Z80_HL, val); |
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38 } else if(reg == Z80_IY) { |
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39 *(dst++) = PRE_IY; |
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40 return ld_ir16(dst, Z80_HL, val); |
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41 } else { |
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42 *(dst++) = LD_IR16 | ((reg - Z80_BC) << 4); |
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43 *(dst++) = val & 0xFF; |
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44 *(dst++) = val >> 8; |
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45 return dst; |
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46 } |
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47 } |
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48 |
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49 uint8_t * ld_ir8(uint8_t * dst, uint8_t reg, uint8_t val) |
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50 { |
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51 if (reg <= Z80_H) { |
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52 reg = (reg - Z80_C) ^ 1; |
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53 } else { |
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54 reg = 0x7; |
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55 } |
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56 *(dst++) = LD_IR8 | (reg << 3); |
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57 *(dst++) = val; |
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58 return dst; |
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59 } |
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60 |
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61 uint8_t * ld_rr8(uint8_t * dst, uint8_t src, uint8_t dstr) |
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62 { |
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63 if (src <= Z80_H) { |
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64 src = (src - Z80_C) ^ 1; |
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65 } else { |
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66 src = 0x7; |
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67 } |
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68 if (dstr <= Z80_H) { |
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69 dstr = (dstr - Z80_C) ^ 1; |
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70 } else { |
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71 dstr = 0x7; |
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72 } |
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73 *(dst++) = LD_RR8 | (dstr << 3) | src; |
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74 return dst; |
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75 } |
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76 |
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77 uint8_t * ld_amem(uint8_t * dst, uint16_t address) |
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78 { |
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79 *(dst++) = 0x32; |
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80 *(dst++) = address & 0xFF; |
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81 *(dst++) = address >> 8; |
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82 return dst; |
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83 } |
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84 |
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85 uint8_t * ld_mema(uint8_t * dst, uint16_t address) |
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86 { |
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87 *(dst++) = 0x3A; |
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88 *(dst++) = address & 0xFF; |
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89 *(dst++) = address >> 8; |
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90 return dst; |
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91 } |
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92 |
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93 uint8_t * push(uint8_t * dst, uint8_t reg) |
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94 { |
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95 if (reg == Z80_IX) { |
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96 *(dst++) = PRE_IX; |
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97 return push(dst, Z80_HL); |
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98 } else if(reg == Z80_IY) { |
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99 *(dst++) = PRE_IY; |
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100 return push(dst, Z80_HL); |
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101 } else { |
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102 if (reg == Z80_AF) { |
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103 reg--; |
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104 } |
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105 *(dst++) = PUSH | ((reg - Z80_BC) << 4); |
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106 return dst; |
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107 } |
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108 } |
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109 |
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110 uint8_t * pop(uint8_t * dst, uint8_t reg) |
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111 { |
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112 if (reg == Z80_IX) { |
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113 *(dst++) = PRE_IX; |
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114 return pop(dst, Z80_HL); |
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115 } else if(reg == Z80_IY) { |
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116 *(dst++) = PRE_IY; |
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117 return pop(dst, Z80_HL); |
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118 } else { |
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119 if (reg == Z80_AF) { |
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120 reg--; |
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121 } |
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122 *(dst++) = POP | ((reg - Z80_BC) << 4); |
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123 return dst; |
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124 } |
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125 } |
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126 |
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127 uint8_t * and_r(uint8_t * dst, uint8_t reg) |
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128 { |
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129 if (reg == Z80_IXH || reg == Z80_IXL) { |
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130 *(dst++) = PRE_IX; |
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131 return and_r(dst, reg - (Z80_IXL - Z80_L)); |
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132 } else if(reg == Z80_IYH || reg == Z80_IYL) { |
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133 *(dst++) = PRE_IY; |
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134 return and_r(dst, reg - (Z80_IYL - Z80_L)); |
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135 } else { |
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136 if (reg == Z80_A) { |
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137 reg = 7; |
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138 } else { |
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139 reg = (reg - Z80_C) ^ 1; |
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140 } |
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141 *(dst++) = AND_R | reg; |
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142 return dst; |
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143 } |
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144 } |
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145 |
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146 void z80_gen_test(z80inst * inst, uint8_t *instbuf, uint8_t instlen) |
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147 { |
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148 z80inst copy; |
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149 uint16_t reg_values[Z80_UNUSED]; |
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150 uint8_t reg_usage[Z80_UNUSED]; |
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151 memset(reg_values, 0, sizeof(reg_values)); |
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152 memset(reg_usage, 0, sizeof(reg_usage)); |
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153 uint8_t addr_mode = inst->addr_mode & 0x1F; |
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154 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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155 |
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156 if (inst->reg == Z80_USE_IMMED || addr_mode == Z80_IMMED || addr_mode == Z80_IMMED_INDIRECT |
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157 || addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) |
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158 { |
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159 memcpy(©, inst, sizeof(copy)); |
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160 inst = © |
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161 if ((inst->reg == Z80_USE_IMMED && inst->op != Z80_BIT && inst->op != Z80_RES && inst->op != Z80_SET) |
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162 || (addr_mode == Z80_IMMED && inst->op != Z80_IM)) |
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163 { |
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164 copy.immed = rand() % (word_sized ? 65536 : 256); |
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165 } |
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166 if (addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) { |
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167 copy.ea_reg = rand() % 256; |
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168 } |
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169 if (addr_mode == Z80_IMMED_INDIRECT) { |
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170 copy.immed = 0x1000 + (rand() % 256 - 128); |
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171 } |
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172 } |
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173 uint8_t is_mem = 0; |
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174 uint16_t address; |
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175 int16_t offset; |
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176 switch(addr_mode) |
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177 { |
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178 case Z80_REG: |
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179 reg_usage[inst->ea_reg] = 1; |
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180 if (word_sized) { |
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181 reg_values[inst->ea_reg] = rand() % 65536; |
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182 reg_values[z80_high_reg(inst->ea_reg)] = reg_values[inst->ea_reg] >> 8; |
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183 reg_usage[z80_high_reg(inst->ea_reg)] = 1; |
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184 reg_values[z80_low_reg(inst->ea_reg)] = reg_values[inst->ea_reg] & 0xFF; |
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185 reg_usage[z80_low_reg(inst->ea_reg)] = 1; |
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186 } else { |
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187 reg_values[inst->ea_reg] = rand() % 256; |
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188 uint8_t word_reg = z80_word_reg(inst->ea_reg); |
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189 if (word_reg != Z80_UNUSED) { |
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190 reg_usage[word_reg] = 1; |
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191 reg_values[word_reg] = (reg_values[z80_high_reg(word_reg)] << 8) | (reg_values[z80_low_reg(word_reg)] & 0xFF); |
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192 } |
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193 } |
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194 break; |
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195 case Z80_REG_INDIRECT: |
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196 is_mem = 1; |
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197 reg_values[inst->ea_reg] = 0x1000 + (rand() % 256 - 128); |
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198 reg_usage[inst->ea_reg] = 1; |
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199 address = reg_values[inst->ea_reg]; |
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200 reg_usage[z80_high_reg(inst->ea_reg)] = 1; |
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201 reg_values[z80_high_reg(inst->ea_reg)] = reg_values[inst->ea_reg] >> 8; |
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202 reg_usage[z80_low_reg(inst->ea_reg)] = 1; |
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203 reg_values[z80_low_reg(inst->ea_reg)] = reg_values[inst->ea_reg] & 0xFF; |
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204 break; |
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205 case Z80_IMMED_INDIRECT: |
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206 is_mem = 1; |
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207 address = inst->immed; |
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208 break; |
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209 case Z80_IX_DISPLACE: |
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210 reg_values[Z80_IX] = 0x1000; |
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211 reg_usage[Z80_IX] = 1; |
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212 reg_values[Z80_IXH] = 0x10; |
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213 reg_usage[Z80_IXH] = 1; |
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214 reg_values[Z80_IXL] = 0; |
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215 reg_usage[Z80_IXL] = 1; |
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216 is_mem = 1; |
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217 offset = inst->ea_reg; |
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218 if (offset > 0x7F) { |
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219 offset -= 256; |
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220 } |
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221 address = 0x1000 + offset; |
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222 break; |
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223 case Z80_IY_DISPLACE: |
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224 reg_values[Z80_IY] = 0x1000; |
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225 reg_usage[Z80_IY] = 1; |
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226 reg_values[Z80_IYH] = 0x10; |
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227 reg_usage[Z80_IYH] = 1; |
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228 reg_values[Z80_IYL] = 0; |
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229 reg_usage[Z80_IYL] = 1; |
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230 is_mem = 1; |
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231 offset = inst->ea_reg; |
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232 if (offset > 0x7F) { |
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233 offset -= 256; |
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234 } |
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235 address = 0x1000 + offset; |
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236 break; |
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237 } |
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238 if (inst->reg != Z80_UNUSED && inst->reg != Z80_USE_IMMED) { |
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239 |
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240 if (word_sized) { |
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241 reg_values[inst->reg] = rand() % 65536; |
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242 reg_usage[z80_high_reg(inst->reg)] = 1; |
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243 reg_values[z80_high_reg(inst->reg)] = reg_values[inst->reg] >> 8; |
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244 reg_usage[z80_low_reg(inst->reg)] = 1; |
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245 reg_values[z80_low_reg(inst->reg)] = reg_values[inst->reg] & 0xFF; |
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246 } else { |
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247 if (!reg_usage[inst->reg]) { |
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248 reg_values[inst->reg] = rand() % 255; |
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249 uint8_t word_reg = z80_word_reg(inst->reg); |
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250 if (word_reg != Z80_UNUSED) { |
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251 reg_usage[word_reg] = 1; |
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252 reg_values[word_reg] = (reg_values[z80_high_reg(word_reg)] << 8) | (reg_values[z80_low_reg(word_reg)] & 0xFF); |
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253 } |
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254 } |
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255 } |
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256 reg_usage[inst->reg] = 1; |
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257 } |
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258 puts("--------------"); |
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259 for (uint8_t reg = 0; reg < Z80_UNUSED; reg++) { |
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260 if (reg_values[reg]) { |
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261 printf("%s: %X\n", z80_regs[reg], reg_values[reg]); |
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262 } |
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263 } |
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264 char disbuf[80]; |
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265 z80_disasm(inst, disbuf, 0); |
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266 puts(disbuf); |
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267 char pathbuf[128]; |
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268 sprintf(pathbuf, "ztests/%s", z80_mnemonics[inst->op]); |
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269 if (mkdir(pathbuf, 0777) != 0) { |
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270 if (errno != EEXIST) { |
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271 fprintf(stderr, "Failed to create directory %s\n", disbuf); |
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272 exit(1); |
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273 } |
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274 } |
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275 uint8_t prog[200]; |
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276 uint8_t *cur = prog; |
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277 uint8_t mem_val; |
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278 //disable interrupts |
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279 *(cur++) = 0xF3; |
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280 //setup SP |
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281 cur = ld_ir16(cur, Z80_SP, 0x2000); |
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282 for (int i = 0; i < 2; i ++) { |
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283 //setup memory |
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284 if (is_mem) { |
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285 mem_val = rand() % 256; |
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286 cur = ld_ir8(cur, Z80_A, mem_val); |
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287 cur = ld_amem(cur, address); |
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288 } |
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289 //setup AF |
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290 cur = ld_ir16(cur, Z80_BC, reg_values[Z80_A] << 8 | (i ? 0xFF : 0)); |
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291 cur = push(cur, Z80_BC); |
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292 cur = pop(cur, Z80_AF); |
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293 |
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294 //setup other regs |
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295 for (uint8_t reg = Z80_BC; reg <= Z80_IY; reg++) { |
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296 if (reg != Z80_AF && reg != Z80_SP) { |
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297 cur = ld_ir16(cur, reg, reg_values[reg]); |
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298 } |
292
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299 } |
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300 |
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301 //copy instruction |
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302 if (instlen == 3) { |
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303 memcpy(cur, instbuf, 2); |
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304 cur += 2; |
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305 } else { |
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306 memcpy(cur, instbuf, instlen); |
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307 cur += instlen; |
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308 } |
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309 |
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310 //immed/displacement byte(s) |
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311 if (addr_mode == Z80_IX_DISPLACE || addr_mode == Z80_IY_DISPLACE) { |
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312 *(cur++) = inst->ea_reg; |
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313 } else if (addr_mode == Z80_IMMED & inst->op != Z80_IM) { |
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314 *(cur++) = inst->immed & 0xFF; |
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315 if (word_sized) { |
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316 *(cur++) = inst->immed >> 8; |
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317 } |
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318 } else if (addr_mode == Z80_IMMED_INDIRECT) { |
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319 *(cur++) = inst->immed & 0xFF; |
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320 *(cur++) = inst->immed >> 8; |
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321 } |
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322 if (inst->reg == Z80_USE_IMMED && inst->op != Z80_BIT && inst->op != Z80_RES && inst->op != Z80_SET) { |
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323 *(cur++) = inst->immed & 0xFF; |
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324 } |
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325 if (instlen == 3) { |
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326 *(cur++) = instbuf[2]; |
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327 } |
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328 if (!i) { |
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329 //Save AF from first run |
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330 cur = push(cur, Z80_AF); |
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331 if (is_mem) { |
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332 //Save memory location from frist run |
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333 cur = ld_mema(cur, address); |
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334 cur = push(cur, Z80_AF); |
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335 } |
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336 } else { |
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337 //Pop AF from first run for final result |
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338 for (int reg = Z80_BC; reg <= Z80_IY; reg++) { |
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339 if (reg != Z80_AF && !reg_usage[reg]) { |
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340 cur = pop(cur, reg); |
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341 cur = push(cur, Z80_AF); |
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342 cur = ld_ir8(cur, Z80_A, 0xC7); |
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343 cur = and_r(cur, z80_low_reg(reg)); |
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344 cur = ld_rr8(cur, Z80_A, z80_low_reg(reg)); |
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345 cur = pop(cur, Z80_AF); |
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346 reg_usage[reg] = 1; |
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347 reg_usage[z80_low_reg(reg)] = 1; |
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348 break; |
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349 } |
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350 } |
505
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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351 if (is_mem) { |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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352 //Pop memory location from frist run |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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353 for (int reg = Z80_BC; reg <= Z80_IY; reg++) { |
b7b7a1cab44a
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354 if (reg != Z80_AF && !reg_usage[reg]) { |
b7b7a1cab44a
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355 cur = pop(cur, reg); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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356 cur = push(cur, Z80_AF); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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357 cur = ld_mema(cur, address); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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358 cur = ld_rr8(cur, Z80_A, z80_low_reg(reg)); |
b7b7a1cab44a
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parents:
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359 cur = pop(cur, Z80_AF); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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360 reg_usage[reg] = 1; |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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361 reg_usage[z80_low_reg(reg)] = 1; |
b7b7a1cab44a
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parents:
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362 break; |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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363 } |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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364 } |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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parents:
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365 } |
400
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366 } |
298
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367 } |
292
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368 |
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369 for (char * cur = disbuf; *cur != 0; cur++) { |
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370 if (*cur == ',' || *cur == ' ') { |
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371 *cur = '_'; |
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372 } |
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373 } |
391
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374 //save memory result |
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375 if (is_mem) { |
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376 if (reg_usage[Z80_A]) { |
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377 cur = push(cur, Z80_AF); |
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378 } |
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379 cur = ld_mema(cur, address); |
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380 if (reg_usage[Z80_A]) { |
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381 for (int reg = 0; reg < Z80_I; reg++) { |
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382 if (!reg_usage[reg]) { |
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383 cur = ld_rr8(cur, Z80_A, reg); |
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384 break; |
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385 } |
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386 } |
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387 cur = pop(cur, Z80_AF); |
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388 } |
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389 } |
505
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390 |
292
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391 //halt |
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392 *(cur++) = 0x76; |
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393 sprintf(pathbuf + strlen(pathbuf), "/%s.bin", disbuf); |
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394 FILE * progfile = fopen(pathbuf, "wb"); |
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395 fwrite(prog, 1, cur - prog, progfile); |
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396 fclose(progfile); |
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397 } |
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398 |
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399 |
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400 uint8_t should_skip(z80inst * inst) |
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401 { |
505
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402 return inst->op >= Z80_JP || (inst->op >= Z80_LDI && inst->op <= Z80_CPDR) || inst->op == Z80_HALT |
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403 || inst->op == Z80_DAA || inst->op == Z80_RLD || inst->op == Z80_RRD || inst->op == Z80_NOP |
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404 || inst->op == Z80_DI || inst->op == Z80_EI; |
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405 } |
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406 |
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407 void z80_gen_all() |
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408 { |
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409 uint8_t inst[3]; |
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410 for (int op = 0; op < 256; op++) { |
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411 inst[0] = op; |
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412 if (op == 0xCB) { |
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413 for (int subop = 0; subop < 256; subop++) { |
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414 if (!should_skip(z80_tbl_bit + subop)) { |
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415 inst[1] = subop; |
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416 z80_gen_test(z80_tbl_bit + subop, inst, 2); |
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417 } |
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418 } |
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419 } else if(op == 0xDD) { |
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420 for (int ixop = 0; ixop < 256; ixop++) { |
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421 inst[1] = ixop; |
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422 if (ixop == 0xCB) { |
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423 for (int subop = 0; subop < 256; subop++) { |
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424 if (!should_skip(z80_tbl_ix_bit + subop)) { |
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425 inst[2] = subop; |
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426 z80_gen_test(z80_tbl_ix_bit + subop, inst, 3); |
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427 } |
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428 } |
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429 } else { |
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430 if (!should_skip(z80_tbl_ix + ixop)) { |
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431 z80_gen_test(z80_tbl_ix + ixop, inst, 2); |
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432 } |
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433 } |
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434 } |
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435 } else if(op == 0xED) { |
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436 for (int subop = 0; subop < sizeof(z80_tbl_extd)/sizeof(z80inst); subop++) { |
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437 if (!should_skip(z80_tbl_extd + subop)) { |
296
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438 inst[1] = subop + 0x40; |
292
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439 z80_gen_test(z80_tbl_extd + subop, inst, 2); |
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440 } |
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441 } |
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442 } else if(op == 0xFD) { |
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443 for (int iyop = 0; iyop < 256; iyop++) { |
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444 inst[1] = iyop; |
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445 if (iyop == 0xCB) { |
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446 for (int subop = 0; subop < 256; subop++) { |
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447 if (!should_skip(z80_tbl_iy_bit + subop)) { |
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448 inst[2] = subop; |
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449 z80_gen_test(z80_tbl_iy_bit + subop, inst, 3); |
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450 } |
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451 } |
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452 } else { |
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453 if (!should_skip(z80_tbl_iy + iyop)) { |
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454 z80_gen_test(z80_tbl_iy + iyop, inst, 2); |
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455 } |
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456 } |
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457 } |
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458 } else { |
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459 if (!should_skip(z80_tbl_a + op)) { |
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460 z80_gen_test(z80_tbl_a + op, inst, 1); |
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461 } |
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462 } |
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463 } |
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464 } |
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465 |
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466 int main(int argc, char ** argv) |
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467 { |
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468 z80_gen_all(); |
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469 return 0; |
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470 } |