| 1 |
/** Z80: portable Z80 emulator *******************************/ |
| 2 |
/** **/ |
| 3 |
/** Codes.h **/ |
| 4 |
/** **/ |
| 5 |
/** This file contains implementation for the main table of **/ |
| 6 |
/** Z80 commands. It is included from Z80.c. **/ |
| 7 |
/** **/ |
| 8 |
/** Copyright (C) Marat Fayzullin 1994-2007 **/ |
| 9 |
/** You are not allowed to distribute this software **/ |
| 10 |
/** commercially. Please, notify me, if you make any **/ |
| 11 |
/** changes to this file. **/ |
| 12 |
/*************************************************************/ |
| 13 |
|
| 14 |
case JR_NZ: if(R->AF.B.l&Z_FLAG) R->PC.W++; else { R->ICount-=5;M_JR; } break; |
| 15 |
case JR_NC: if(R->AF.B.l&C_FLAG) R->PC.W++; else { R->ICount-=5;M_JR; } break; |
| 16 |
case JR_Z: if(R->AF.B.l&Z_FLAG) { R->ICount-=5;M_JR; } else R->PC.W++; break; |
| 17 |
case JR_C: if(R->AF.B.l&C_FLAG) { R->ICount-=5;M_JR; } else R->PC.W++; break; |
| 18 |
|
| 19 |
case JP_NZ: if(R->AF.B.l&Z_FLAG) R->PC.W+=2; else { M_JP; } break; |
| 20 |
case JP_NC: if(R->AF.B.l&C_FLAG) R->PC.W+=2; else { M_JP; } break; |
| 21 |
case JP_PO: if(R->AF.B.l&P_FLAG) R->PC.W+=2; else { M_JP; } break; |
| 22 |
case JP_P: if(R->AF.B.l&S_FLAG) R->PC.W+=2; else { M_JP; } break; |
| 23 |
case JP_Z: if(R->AF.B.l&Z_FLAG) { M_JP; } else R->PC.W+=2; break; |
| 24 |
case JP_C: if(R->AF.B.l&C_FLAG) { M_JP; } else R->PC.W+=2; break; |
| 25 |
case JP_PE: if(R->AF.B.l&P_FLAG) { M_JP; } else R->PC.W+=2; break; |
| 26 |
case JP_M: if(R->AF.B.l&S_FLAG) { M_JP; } else R->PC.W+=2; break; |
| 27 |
|
| 28 |
case RET_NZ: if(!(R->AF.B.l&Z_FLAG)) { R->ICount-=6;M_RET; } break; |
| 29 |
case RET_NC: if(!(R->AF.B.l&C_FLAG)) { R->ICount-=6;M_RET; } break; |
| 30 |
case RET_PO: if(!(R->AF.B.l&P_FLAG)) { R->ICount-=6;M_RET; } break; |
| 31 |
case RET_P: if(!(R->AF.B.l&S_FLAG)) { R->ICount-=6;M_RET; } break; |
| 32 |
case RET_Z: if(R->AF.B.l&Z_FLAG) { R->ICount-=6;M_RET; } break; |
| 33 |
case RET_C: if(R->AF.B.l&C_FLAG) { R->ICount-=6;M_RET; } break; |
| 34 |
case RET_PE: if(R->AF.B.l&P_FLAG) { R->ICount-=6;M_RET; } break; |
| 35 |
case RET_M: if(R->AF.B.l&S_FLAG) { R->ICount-=6;M_RET; } break; |
| 36 |
|
| 37 |
case CALL_NZ: if(R->AF.B.l&Z_FLAG) R->PC.W+=2; else { R->ICount-=7;M_CALL; } break; |
| 38 |
case CALL_NC: if(R->AF.B.l&C_FLAG) R->PC.W+=2; else { R->ICount-=7;M_CALL; } break; |
| 39 |
case CALL_PO: if(R->AF.B.l&P_FLAG) R->PC.W+=2; else { R->ICount-=7;M_CALL; } break; |
| 40 |
case CALL_P: if(R->AF.B.l&S_FLAG) R->PC.W+=2; else { R->ICount-=7;M_CALL; } break; |
| 41 |
case CALL_Z: if(R->AF.B.l&Z_FLAG) { R->ICount-=7;M_CALL; } else R->PC.W+=2; break; |
| 42 |
case CALL_C: if(R->AF.B.l&C_FLAG) { R->ICount-=7;M_CALL; } else R->PC.W+=2; break; |
| 43 |
case CALL_PE: if(R->AF.B.l&P_FLAG) { R->ICount-=7;M_CALL; } else R->PC.W+=2; break; |
| 44 |
case CALL_M: if(R->AF.B.l&S_FLAG) { R->ICount-=7;M_CALL; } else R->PC.W+=2; break; |
| 45 |
|
| 46 |
case ADD_B: M_ADD(R->BC.B.h);break; |
| 47 |
case ADD_C: M_ADD(R->BC.B.l);break; |
| 48 |
case ADD_D: M_ADD(R->DE.B.h);break; |
| 49 |
case ADD_E: M_ADD(R->DE.B.l);break; |
| 50 |
case ADD_H: M_ADD(R->HL.B.h);break; |
| 51 |
case ADD_L: M_ADD(R->HL.B.l);break; |
| 52 |
case ADD_A: M_ADD(R->AF.B.h);break; |
| 53 |
case ADD_xHL: I=RdZ80(R->HL.W);M_ADD(I);break; |
| 54 |
case ADD_BYTE: I=RdZ80(R->PC.W++);M_ADD(I);break; |
| 55 |
|
| 56 |
case SUB_B: M_SUB(R->BC.B.h);break; |
| 57 |
case SUB_C: M_SUB(R->BC.B.l);break; |
| 58 |
case SUB_D: M_SUB(R->DE.B.h);break; |
| 59 |
case SUB_E: M_SUB(R->DE.B.l);break; |
| 60 |
case SUB_H: M_SUB(R->HL.B.h);break; |
| 61 |
case SUB_L: M_SUB(R->HL.B.l);break; |
| 62 |
case SUB_A: R->AF.B.h=0;R->AF.B.l=N_FLAG|Z_FLAG;break; |
| 63 |
case SUB_xHL: I=RdZ80(R->HL.W);M_SUB(I);break; |
| 64 |
case SUB_BYTE: I=RdZ80(R->PC.W++);M_SUB(I);break; |
| 65 |
|
| 66 |
case AND_B: M_AND(R->BC.B.h);break; |
| 67 |
case AND_C: M_AND(R->BC.B.l);break; |
| 68 |
case AND_D: M_AND(R->DE.B.h);break; |
| 69 |
case AND_E: M_AND(R->DE.B.l);break; |
| 70 |
case AND_H: M_AND(R->HL.B.h);break; |
| 71 |
case AND_L: M_AND(R->HL.B.l);break; |
| 72 |
case AND_A: M_AND(R->AF.B.h);break; |
| 73 |
case AND_xHL: I=RdZ80(R->HL.W);M_AND(I);break; |
| 74 |
case AND_BYTE: I=RdZ80(R->PC.W++);M_AND(I);break; |
| 75 |
|
| 76 |
case OR_B: M_OR(R->BC.B.h);break; |
| 77 |
case OR_C: M_OR(R->BC.B.l);break; |
| 78 |
case OR_D: M_OR(R->DE.B.h);break; |
| 79 |
case OR_E: M_OR(R->DE.B.l);break; |
| 80 |
case OR_H: M_OR(R->HL.B.h);break; |
| 81 |
case OR_L: M_OR(R->HL.B.l);break; |
| 82 |
case OR_A: M_OR(R->AF.B.h);break; |
| 83 |
case OR_xHL: I=RdZ80(R->HL.W);M_OR(I);break; |
| 84 |
case OR_BYTE: I=RdZ80(R->PC.W++);M_OR(I);break; |
| 85 |
|
| 86 |
case ADC_B: M_ADC(R->BC.B.h);break; |
| 87 |
case ADC_C: M_ADC(R->BC.B.l);break; |
| 88 |
case ADC_D: M_ADC(R->DE.B.h);break; |
| 89 |
case ADC_E: M_ADC(R->DE.B.l);break; |
| 90 |
case ADC_H: M_ADC(R->HL.B.h);break; |
| 91 |
case ADC_L: M_ADC(R->HL.B.l);break; |
| 92 |
case ADC_A: M_ADC(R->AF.B.h);break; |
| 93 |
case ADC_xHL: I=RdZ80(R->HL.W);M_ADC(I);break; |
| 94 |
case ADC_BYTE: I=RdZ80(R->PC.W++);M_ADC(I);break; |
| 95 |
|
| 96 |
case SBC_B: M_SBC(R->BC.B.h);break; |
| 97 |
case SBC_C: M_SBC(R->BC.B.l);break; |
| 98 |
case SBC_D: M_SBC(R->DE.B.h);break; |
| 99 |
case SBC_E: M_SBC(R->DE.B.l);break; |
| 100 |
case SBC_H: M_SBC(R->HL.B.h);break; |
| 101 |
case SBC_L: M_SBC(R->HL.B.l);break; |
| 102 |
case SBC_A: M_SBC(R->AF.B.h);break; |
| 103 |
case SBC_xHL: I=RdZ80(R->HL.W);M_SBC(I);break; |
| 104 |
case SBC_BYTE: I=RdZ80(R->PC.W++);M_SBC(I);break; |
| 105 |
|
| 106 |
case XOR_B: M_XOR(R->BC.B.h);break; |
| 107 |
case XOR_C: M_XOR(R->BC.B.l);break; |
| 108 |
case XOR_D: M_XOR(R->DE.B.h);break; |
| 109 |
case XOR_E: M_XOR(R->DE.B.l);break; |
| 110 |
case XOR_H: M_XOR(R->HL.B.h);break; |
| 111 |
case XOR_L: M_XOR(R->HL.B.l);break; |
| 112 |
case XOR_A: R->AF.B.h=0;R->AF.B.l=P_FLAG|Z_FLAG;break; |
| 113 |
case XOR_xHL: I=RdZ80(R->HL.W);M_XOR(I);break; |
| 114 |
case XOR_BYTE: I=RdZ80(R->PC.W++);M_XOR(I);break; |
| 115 |
|
| 116 |
case CP_B: M_CP(R->BC.B.h);break; |
| 117 |
case CP_C: M_CP(R->BC.B.l);break; |
| 118 |
case CP_D: M_CP(R->DE.B.h);break; |
| 119 |
case CP_E: M_CP(R->DE.B.l);break; |
| 120 |
case CP_H: M_CP(R->HL.B.h);break; |
| 121 |
case CP_L: M_CP(R->HL.B.l);break; |
| 122 |
case CP_A: R->AF.B.l=N_FLAG|Z_FLAG;break; |
| 123 |
case CP_xHL: I=RdZ80(R->HL.W);M_CP(I);break; |
| 124 |
case CP_BYTE: I=RdZ80(R->PC.W++);M_CP(I);break; |
| 125 |
|
| 126 |
case LD_BC_WORD: M_LDWORD(BC);break; |
| 127 |
case LD_DE_WORD: M_LDWORD(DE);break; |
| 128 |
case LD_HL_WORD: M_LDWORD(HL);break; |
| 129 |
case LD_SP_WORD: M_LDWORD(SP);break; |
| 130 |
|
| 131 |
case LD_PC_HL: R->PC.W=R->HL.W;JumpZ80(R->PC.W);break; |
| 132 |
case LD_SP_HL: R->SP.W=R->HL.W;break; |
| 133 |
case LD_A_xBC: R->AF.B.h=RdZ80(R->BC.W);break; |
| 134 |
case LD_A_xDE: R->AF.B.h=RdZ80(R->DE.W);break; |
| 135 |
|
| 136 |
case ADD_HL_BC: M_ADDW(HL,BC);break; |
| 137 |
case ADD_HL_DE: M_ADDW(HL,DE);break; |
| 138 |
case ADD_HL_HL: M_ADDW(HL,HL);break; |
| 139 |
case ADD_HL_SP: M_ADDW(HL,SP);break; |
| 140 |
|
| 141 |
case DEC_BC: R->BC.W--;break; |
| 142 |
case DEC_DE: R->DE.W--;break; |
| 143 |
case DEC_HL: R->HL.W--;break; |
| 144 |
case DEC_SP: R->SP.W--;break; |
| 145 |
|
| 146 |
case INC_BC: R->BC.W++;break; |
| 147 |
case INC_DE: R->DE.W++;break; |
| 148 |
case INC_HL: R->HL.W++;break; |
| 149 |
case INC_SP: R->SP.W++;break; |
| 150 |
|
| 151 |
case DEC_B: M_DEC(R->BC.B.h);break; |
| 152 |
case DEC_C: M_DEC(R->BC.B.l);break; |
| 153 |
case DEC_D: M_DEC(R->DE.B.h);break; |
| 154 |
case DEC_E: M_DEC(R->DE.B.l);break; |
| 155 |
case DEC_H: M_DEC(R->HL.B.h);break; |
| 156 |
case DEC_L: M_DEC(R->HL.B.l);break; |
| 157 |
case DEC_A: M_DEC(R->AF.B.h);break; |
| 158 |
case DEC_xHL: I=RdZ80(R->HL.W);M_DEC(I);WrZ80(R->HL.W,I);break; |
| 159 |
|
| 160 |
case INC_B: M_INC(R->BC.B.h);break; |
| 161 |
case INC_C: M_INC(R->BC.B.l);break; |
| 162 |
case INC_D: M_INC(R->DE.B.h);break; |
| 163 |
case INC_E: M_INC(R->DE.B.l);break; |
| 164 |
case INC_H: M_INC(R->HL.B.h);break; |
| 165 |
case INC_L: M_INC(R->HL.B.l);break; |
| 166 |
case INC_A: M_INC(R->AF.B.h);break; |
| 167 |
case INC_xHL: I=RdZ80(R->HL.W);M_INC(I);WrZ80(R->HL.W,I);break; |
| 168 |
|
| 169 |
case RLCA: |
| 170 |
I=R->AF.B.h&0x80? C_FLAG:0; |
| 171 |
R->AF.B.h=(R->AF.B.h<<1)|I; |
| 172 |
R->AF.B.l=(R->AF.B.l&~(C_FLAG|N_FLAG|H_FLAG))|I; |
| 173 |
break; |
| 174 |
case RLA: |
| 175 |
I=R->AF.B.h&0x80? C_FLAG:0; |
| 176 |
R->AF.B.h=(R->AF.B.h<<1)|(R->AF.B.l&C_FLAG); |
| 177 |
R->AF.B.l=(R->AF.B.l&~(C_FLAG|N_FLAG|H_FLAG))|I; |
| 178 |
break; |
| 179 |
case RRCA: |
| 180 |
I=R->AF.B.h&0x01; |
| 181 |
R->AF.B.h=(R->AF.B.h>>1)|(I? 0x80:0); |
| 182 |
R->AF.B.l=(R->AF.B.l&~(C_FLAG|N_FLAG|H_FLAG))|I; |
| 183 |
break; |
| 184 |
case RRA: |
| 185 |
I=R->AF.B.h&0x01; |
| 186 |
R->AF.B.h=(R->AF.B.h>>1)|(R->AF.B.l&C_FLAG? 0x80:0); |
| 187 |
R->AF.B.l=(R->AF.B.l&~(C_FLAG|N_FLAG|H_FLAG))|I; |
| 188 |
break; |
| 189 |
|
| 190 |
case RST00: M_RST(0x0000);break; |
| 191 |
case RST08: M_RST(0x0008);break; |
| 192 |
case RST10: M_RST(0x0010);break; |
| 193 |
case RST18: M_RST(0x0018);break; |
| 194 |
case RST20: M_RST(0x0020);break; |
| 195 |
case RST28: M_RST(0x0028);break; |
| 196 |
case RST30: M_RST(0x0030);break; |
| 197 |
case RST38: M_RST(0x0038);break; |
| 198 |
|
| 199 |
case PUSH_BC: M_PUSH(BC);break; |
| 200 |
case PUSH_DE: M_PUSH(DE);break; |
| 201 |
case PUSH_HL: M_PUSH(HL);break; |
| 202 |
case PUSH_AF: M_PUSH(AF);break; |
| 203 |
|
| 204 |
case POP_BC: M_POP(BC);break; |
| 205 |
case POP_DE: M_POP(DE);break; |
| 206 |
case POP_HL: M_POP(HL);break; |
| 207 |
case POP_AF: M_POP(AF);break; |
| 208 |
|
| 209 |
case DJNZ: if(--R->BC.B.h) { R->ICount-=5;M_JR; } else R->PC.W++;break; |
| 210 |
case JP: M_JP;break; |
| 211 |
case JR: M_JR;break; |
| 212 |
case CALL: M_CALL;break; |
| 213 |
case RET: M_RET;break; |
| 214 |
case SCF: S(C_FLAG);R(N_FLAG|H_FLAG);break; |
| 215 |
case CPL: R->AF.B.h=~R->AF.B.h;S(N_FLAG|H_FLAG);break; |
| 216 |
case NOP: break; |
| 217 |
case OUTA: I=RdZ80(R->PC.W++);OutZ80(I|(R->AF.W&0xFF00),R->AF.B.h);break; |
| 218 |
case INA: I=RdZ80(R->PC.W++);R->AF.B.h=InZ80(I|(R->AF.W&0xFF00));break; |
| 219 |
|
| 220 |
case HALT: |
| 221 |
R->PC.W--; |
| 222 |
R->IFF|=IFF_HALT; |
| 223 |
R->IBackup=0; |
| 224 |
R->ICount=0; |
| 225 |
break; |
| 226 |
|
| 227 |
case DI: |
| 228 |
if(R->IFF&IFF_EI) R->ICount+=R->IBackup-1; |
| 229 |
R->IFF&=~(IFF_1|IFF_2|IFF_EI); |
| 230 |
break; |
| 231 |
|
| 232 |
case EI: |
| 233 |
if(!(R->IFF&(IFF_1|IFF_EI))) |
| 234 |
{ |
| 235 |
R->IFF|=IFF_2|IFF_EI; |
| 236 |
R->IBackup=R->ICount; |
| 237 |
R->ICount=1; |
| 238 |
} |
| 239 |
break; |
| 240 |
|
| 241 |
case CCF: |
| 242 |
R->AF.B.l^=C_FLAG;R(N_FLAG|H_FLAG); |
| 243 |
R->AF.B.l|=R->AF.B.l&C_FLAG? 0:H_FLAG; |
| 244 |
break; |
| 245 |
|
| 246 |
case EXX: |
| 247 |
J.W=R->BC.W;R->BC.W=R->BC1.W;R->BC1.W=J.W; |
| 248 |
J.W=R->DE.W;R->DE.W=R->DE1.W;R->DE1.W=J.W; |
| 249 |
J.W=R->HL.W;R->HL.W=R->HL1.W;R->HL1.W=J.W; |
| 250 |
break; |
| 251 |
|
| 252 |
case EX_DE_HL: J.W=R->DE.W;R->DE.W=R->HL.W;R->HL.W=J.W;break; |
| 253 |
case EX_AF_AF: J.W=R->AF.W;R->AF.W=R->AF1.W;R->AF1.W=J.W;break; |
| 254 |
|
| 255 |
case LD_B_B: R->BC.B.h=R->BC.B.h;break; |
| 256 |
case LD_C_B: R->BC.B.l=R->BC.B.h;break; |
| 257 |
case LD_D_B: R->DE.B.h=R->BC.B.h;break; |
| 258 |
case LD_E_B: R->DE.B.l=R->BC.B.h;break; |
| 259 |
case LD_H_B: R->HL.B.h=R->BC.B.h;break; |
| 260 |
case LD_L_B: R->HL.B.l=R->BC.B.h;break; |
| 261 |
case LD_A_B: R->AF.B.h=R->BC.B.h;break; |
| 262 |
case LD_xHL_B: WrZ80(R->HL.W,R->BC.B.h);break; |
| 263 |
|
| 264 |
case LD_B_C: R->BC.B.h=R->BC.B.l;break; |
| 265 |
case LD_C_C: R->BC.B.l=R->BC.B.l;break; |
| 266 |
case LD_D_C: R->DE.B.h=R->BC.B.l;break; |
| 267 |
case LD_E_C: R->DE.B.l=R->BC.B.l;break; |
| 268 |
case LD_H_C: R->HL.B.h=R->BC.B.l;break; |
| 269 |
case LD_L_C: R->HL.B.l=R->BC.B.l;break; |
| 270 |
case LD_A_C: R->AF.B.h=R->BC.B.l;break; |
| 271 |
case LD_xHL_C: WrZ80(R->HL.W,R->BC.B.l);break; |
| 272 |
|
| 273 |
case LD_B_D: R->BC.B.h=R->DE.B.h;break; |
| 274 |
case LD_C_D: R->BC.B.l=R->DE.B.h;break; |
| 275 |
case LD_D_D: R->DE.B.h=R->DE.B.h;break; |
| 276 |
case LD_E_D: R->DE.B.l=R->DE.B.h;break; |
| 277 |
case LD_H_D: R->HL.B.h=R->DE.B.h;break; |
| 278 |
case LD_L_D: R->HL.B.l=R->DE.B.h;break; |
| 279 |
case LD_A_D: R->AF.B.h=R->DE.B.h;break; |
| 280 |
case LD_xHL_D: WrZ80(R->HL.W,R->DE.B.h);break; |
| 281 |
|
| 282 |
case LD_B_E: R->BC.B.h=R->DE.B.l;break; |
| 283 |
case LD_C_E: R->BC.B.l=R->DE.B.l;break; |
| 284 |
case LD_D_E: R->DE.B.h=R->DE.B.l;break; |
| 285 |
case LD_E_E: R->DE.B.l=R->DE.B.l;break; |
| 286 |
case LD_H_E: R->HL.B.h=R->DE.B.l;break; |
| 287 |
case LD_L_E: R->HL.B.l=R->DE.B.l;break; |
| 288 |
case LD_A_E: R->AF.B.h=R->DE.B.l;break; |
| 289 |
case LD_xHL_E: WrZ80(R->HL.W,R->DE.B.l);break; |
| 290 |
|
| 291 |
case LD_B_H: R->BC.B.h=R->HL.B.h;break; |
| 292 |
case LD_C_H: R->BC.B.l=R->HL.B.h;break; |
| 293 |
case LD_D_H: R->DE.B.h=R->HL.B.h;break; |
| 294 |
case LD_E_H: R->DE.B.l=R->HL.B.h;break; |
| 295 |
case LD_H_H: R->HL.B.h=R->HL.B.h;break; |
| 296 |
case LD_L_H: R->HL.B.l=R->HL.B.h;break; |
| 297 |
case LD_A_H: R->AF.B.h=R->HL.B.h;break; |
| 298 |
case LD_xHL_H: WrZ80(R->HL.W,R->HL.B.h);break; |
| 299 |
|
| 300 |
case LD_B_L: R->BC.B.h=R->HL.B.l;break; |
| 301 |
case LD_C_L: R->BC.B.l=R->HL.B.l;break; |
| 302 |
case LD_D_L: R->DE.B.h=R->HL.B.l;break; |
| 303 |
case LD_E_L: R->DE.B.l=R->HL.B.l;break; |
| 304 |
case LD_H_L: R->HL.B.h=R->HL.B.l;break; |
| 305 |
case LD_L_L: R->HL.B.l=R->HL.B.l;break; |
| 306 |
case LD_A_L: R->AF.B.h=R->HL.B.l;break; |
| 307 |
case LD_xHL_L: WrZ80(R->HL.W,R->HL.B.l);break; |
| 308 |
|
| 309 |
case LD_B_A: R->BC.B.h=R->AF.B.h;break; |
| 310 |
case LD_C_A: R->BC.B.l=R->AF.B.h;break; |
| 311 |
case LD_D_A: R->DE.B.h=R->AF.B.h;break; |
| 312 |
case LD_E_A: R->DE.B.l=R->AF.B.h;break; |
| 313 |
case LD_H_A: R->HL.B.h=R->AF.B.h;break; |
| 314 |
case LD_L_A: R->HL.B.l=R->AF.B.h;break; |
| 315 |
case LD_A_A: R->AF.B.h=R->AF.B.h;break; |
| 316 |
case LD_xHL_A: WrZ80(R->HL.W,R->AF.B.h);break; |
| 317 |
|
| 318 |
case LD_xBC_A: WrZ80(R->BC.W,R->AF.B.h);break; |
| 319 |
case LD_xDE_A: WrZ80(R->DE.W,R->AF.B.h);break; |
| 320 |
|
| 321 |
case LD_B_xHL: R->BC.B.h=RdZ80(R->HL.W);break; |
| 322 |
case LD_C_xHL: R->BC.B.l=RdZ80(R->HL.W);break; |
| 323 |
case LD_D_xHL: R->DE.B.h=RdZ80(R->HL.W);break; |
| 324 |
case LD_E_xHL: R->DE.B.l=RdZ80(R->HL.W);break; |
| 325 |
case LD_H_xHL: R->HL.B.h=RdZ80(R->HL.W);break; |
| 326 |
case LD_L_xHL: R->HL.B.l=RdZ80(R->HL.W);break; |
| 327 |
case LD_A_xHL: R->AF.B.h=RdZ80(R->HL.W);break; |
| 328 |
|
| 329 |
case LD_B_BYTE: R->BC.B.h=RdZ80(R->PC.W++);break; |
| 330 |
case LD_C_BYTE: R->BC.B.l=RdZ80(R->PC.W++);break; |
| 331 |
case LD_D_BYTE: R->DE.B.h=RdZ80(R->PC.W++);break; |
| 332 |
case LD_E_BYTE: R->DE.B.l=RdZ80(R->PC.W++);break; |
| 333 |
case LD_H_BYTE: R->HL.B.h=RdZ80(R->PC.W++);break; |
| 334 |
case LD_L_BYTE: R->HL.B.l=RdZ80(R->PC.W++);break; |
| 335 |
case LD_A_BYTE: R->AF.B.h=RdZ80(R->PC.W++);break; |
| 336 |
case LD_xHL_BYTE: WrZ80(R->HL.W,RdZ80(R->PC.W++));break; |
| 337 |
|
| 338 |
case LD_xWORD_HL: |
| 339 |
J.B.l=RdZ80(R->PC.W++); |
| 340 |
J.B.h=RdZ80(R->PC.W++); |
| 341 |
WrZ80(J.W++,R->HL.B.l); |
| 342 |
WrZ80(J.W,R->HL.B.h); |
| 343 |
break; |
| 344 |
|
| 345 |
case LD_HL_xWORD: |
| 346 |
J.B.l=RdZ80(R->PC.W++); |
| 347 |
J.B.h=RdZ80(R->PC.W++); |
| 348 |
R->HL.B.l=RdZ80(J.W++); |
| 349 |
R->HL.B.h=RdZ80(J.W); |
| 350 |
break; |
| 351 |
|
| 352 |
case LD_A_xWORD: |
| 353 |
J.B.l=RdZ80(R->PC.W++); |
| 354 |
J.B.h=RdZ80(R->PC.W++); |
| 355 |
R->AF.B.h=RdZ80(J.W); |
| 356 |
break; |
| 357 |
|
| 358 |
case LD_xWORD_A: |
| 359 |
J.B.l=RdZ80(R->PC.W++); |
| 360 |
J.B.h=RdZ80(R->PC.W++); |
| 361 |
WrZ80(J.W,R->AF.B.h); |
| 362 |
break; |
| 363 |
|
| 364 |
case EX_HL_xSP: |
| 365 |
J.B.l=RdZ80(R->SP.W);WrZ80(R->SP.W++,R->HL.B.l); |
| 366 |
J.B.h=RdZ80(R->SP.W);WrZ80(R->SP.W--,R->HL.B.h); |
| 367 |
R->HL.W=J.W; |
| 368 |
break; |
| 369 |
|
| 370 |
case DAA: |
| 371 |
J.W=R->AF.B.h; |
| 372 |
if(R->AF.B.l&C_FLAG) J.W|=256; |
| 373 |
if(R->AF.B.l&H_FLAG) J.W|=512; |
| 374 |
if(R->AF.B.l&N_FLAG) J.W|=1024; |
| 375 |
R->AF.W=DAATable[J.W]; |
| 376 |
break; |
| 377 |
|
| 378 |
default: |
| 379 |
if(R->TrapBadOps) |
| 380 |
printf |
| 381 |
( |
| 382 |
"[Z80 %lX] Unrecognized instruction: %02X at PC=%04X\n", |
| 383 |
(long)R->User,RdZ80(R->PC.W-1),R->PC.W-1 |
| 384 |
); |
| 385 |
break; |
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