-/* FCE Ultra - NES/Famicom Emulator
- *
- * Copyright notice for this file:
- * Copyright (C) 2002 Ben Parnell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-case 0x00: /* BRK */
- _PC++;
- PUSH(_PC>>8);
- PUSH(_PC);
- _P|=B_FLAG;
- PUSH(_P|U_FLAG);
- _P|=I_FLAG;
- _PC=RdMem(0xFFFE);
- _PC|=RdMem(0xFFFF)<<8;
- break;
-
-case 0x40: /* RTI */
- _P=POP();
- _PI=_P;
- _PC=POP();
- _PC|=POP()<<8;
- break;
-
-case 0x60: /* RTS */
- _PC=POP();
- _PC|=POP()<<8;
- _PC++;
- break;
-
-case 0x48: /* PHA */
- PUSH(_A);
- break;
-case 0x08: /* PHP */
- PUSH(_P|U_FLAG|B_FLAG);
- break;
-case 0x68: /* PLA */
- _A=POP();
- X_ZN(_A);
- break;
-case 0x28: /* PLP */
- _P=POP();
- break;
-case 0x4C:
- {
- unsigned int npc;
-/*
- uint16 ptmp=_PC;
- npc=RdMem(ptmp);
- ptmp++;
- npc|=RdMem(ptmp)<<8;
-*/
- npc=RdMem(_PC++);
- npc|=RdMem(_PC++)<<8;
- _PC=npc;
- }
- break; /* JMP ABSOLUTE */
-case 0x6C:
- {
- uint32 tmp;
- GetAB(tmp);
- _PC=RdMem(tmp);
- _PC|=RdMem( ((tmp+1)&0x00FF) | (tmp&0xFF00))<<8;
- }
- break;
-case 0x20: /* JSR */
- {
- uint32 npc;
- npc=RdMem(_PC++);
- PUSH(_PC>>8);
- PUSH(_PC);
- npc|=RdMem(_PC++)<<8;
- _PC=npc;
- }
- break;
-
-case 0xAA: /* TAX */
- _X=_A;
- X_ZN(_A);
- break;
-
-case 0x8A: /* TXA */
- _A=_X;
- X_ZN(_A);
- break;
-
-case 0xA8: /* TAY */
- _Y=_A;
- X_ZN(_A);
- break;
-case 0x98: /* TYA */
- _A=_Y;
- X_ZN(_A);
- break;
-
-case 0xBA: /* TSX */
- _X=_S;
- X_ZN(_X);
- break;
-case 0x9A: /* TXS */
- _S=_X;
- break;
-
-case 0xCA: /* DEX */
- _X--;
- X_ZN(_X);
- break;
-case 0x88: /* DEY */
- _Y--;
- X_ZN(_Y);
- break;
-
-case 0xE8: /* INX */
- _X++;
- X_ZN(_X);
- break;
-case 0xC8: /* INY */
- _Y++;
- X_ZN(_Y);
- break;
-
-case 0x18: /* CLC */
- _P&=~C_FLAG;
- break;
-case 0xD8: /* CLD */
- _P&=~D_FLAG;
- break;
-case 0x58: /* CLI */
- _P&=~I_FLAG;
- break;
-case 0xB8: /* CLV */
- _P&=~V_FLAG;
- break;
-
-case 0x38: /* SEC */
- _P|=C_FLAG;
- break;
-case 0xF8: /* SED */
- _P|=D_FLAG;
- break;
-case 0x78: /* SEI */
- _P|=I_FLAG;
- break;
-
-case 0xEA: /* NOP */
- break;
-
-case 0x0A: RMW_A(ASL);
-case 0x06: RMW_ZP(ASL);
-case 0x16: RMW_ZPX(ASL);
-case 0x0E: RMW_AB(ASL);
-case 0x1E: RMW_ABX(ASL);
-
-case 0xC6: RMW_ZP(DEC);
-case 0xD6: RMW_ZPX(DEC);
-case 0xCE: RMW_AB(DEC);
-case 0xDE: RMW_ABX(DEC);
-
-case 0xE6: RMW_ZP(INC);
-case 0xF6: RMW_ZPX(INC);
-case 0xEE: RMW_AB(INC);
-case 0xFE: RMW_ABX(INC);
-
-case 0x4A: RMW_A(LSR);
-case 0x46: RMW_ZP(LSR);
-case 0x56: RMW_ZPX(LSR);
-case 0x4E: RMW_AB(LSR);
-case 0x5E: RMW_ABX(LSR);
-
-case 0x2A: RMW_A(ROL);
-case 0x26: RMW_ZP(ROL);
-case 0x36: RMW_ZPX(ROL);
-case 0x2E: RMW_AB(ROL);
-case 0x3E: RMW_ABX(ROL);
-
-case 0x6A: RMW_A(ROR);
-case 0x66: RMW_ZP(ROR);
-case 0x76: RMW_ZPX(ROR);
-case 0x6E: RMW_AB(ROR);
-case 0x7E: RMW_ABX(ROR);
-
-case 0x69: LD_IM(ADC);
-case 0x65: LD_ZP(ADC);
-case 0x75: LD_ZPX(ADC);
-case 0x6D: LD_AB(ADC);
-case 0x7D: LD_ABX(ADC);
-case 0x79: LD_ABY(ADC);
-case 0x61: LD_IX(ADC);
-case 0x71: LD_IY(ADC);
-
-case 0x29: LD_IM(AND);
-case 0x25: LD_ZP(AND);
-case 0x35: LD_ZPX(AND);
-case 0x2D: LD_AB(AND);
-case 0x3D: LD_ABX(AND);
-case 0x39: LD_ABY(AND);
-case 0x21: LD_IX(AND);
-case 0x31: LD_IY(AND);
-
-case 0x24: LD_ZP(BIT);
-case 0x2C: LD_AB(BIT);
-
-case 0xC9: LD_IM(CMP);
-case 0xC5: LD_ZP(CMP);
-case 0xD5: LD_ZPX(CMP);
-case 0xCD: LD_AB(CMP);
-case 0xDD: LD_ABX(CMP);
-case 0xD9: LD_ABY(CMP);
-case 0xC1: LD_IX(CMP);
-case 0xD1: LD_IY(CMP);
-
-case 0xE0: LD_IM(CPX);
-case 0xE4: LD_ZP(CPX);
-case 0xEC: LD_AB(CPX);
-
-case 0xC0: LD_IM(CPY);
-case 0xC4: LD_ZP(CPY);
-case 0xCC: LD_AB(CPY);
-
-case 0x49: LD_IM(EOR);
-case 0x45: LD_ZP(EOR);
-case 0x55: LD_ZPX(EOR);
-case 0x4D: LD_AB(EOR);
-case 0x5D: LD_ABX(EOR);
-case 0x59: LD_ABY(EOR);
-case 0x41: LD_IX(EOR);
-case 0x51: LD_IY(EOR);
-
-case 0xA9: LD_IM(LDA);
-case 0xA5: LD_ZP(LDA);
-case 0xB5: LD_ZPX(LDA);
-case 0xAD: LD_AB(LDA);
-case 0xBD: LD_ABX(LDA);
-case 0xB9: LD_ABY(LDA);
-case 0xA1: LD_IX(LDA);
-case 0xB1: LD_IY(LDA);
-
-case 0xA2: LD_IM(LDX);
-case 0xA6: LD_ZP(LDX);
-case 0xB6: LD_ZPY(LDX);
-case 0xAE: LD_AB(LDX);
-case 0xBE: LD_ABY(LDX);
-
-case 0xA0: LD_IM(LDY);
-case 0xA4: LD_ZP(LDY);
-case 0xB4: LD_ZPX(LDY);
-case 0xAC: LD_AB(LDY);
-case 0xBC: LD_ABX(LDY);
-
-case 0x09: LD_IM(ORA);
-case 0x05: LD_ZP(ORA);
-case 0x15: LD_ZPX(ORA);
-case 0x0D: LD_AB(ORA);
-case 0x1D: LD_ABX(ORA);
-case 0x19: LD_ABY(ORA);
-case 0x01: LD_IX(ORA);
-case 0x11: LD_IY(ORA);
-
-case 0xEB: /* (undocumented) */
-case 0xE9: LD_IM(SBC);
-case 0xE5: LD_ZP(SBC);
-case 0xF5: LD_ZPX(SBC);
-case 0xED: LD_AB(SBC);
-case 0xFD: LD_ABX(SBC);
-case 0xF9: LD_ABY(SBC);
-case 0xE1: LD_IX(SBC);
-case 0xF1: LD_IY(SBC);
-
-case 0x85: ST_ZP(_A);
-case 0x95: ST_ZPX(_A);
-case 0x8D: ST_AB(_A);
-case 0x9D: ST_ABX(_A);
-case 0x99: ST_ABY(_A);
-case 0x81: ST_IX(_A);
-case 0x91: ST_IY(_A);
-
-case 0x86: ST_ZP(_X);
-case 0x96: ST_ZPY(_X);
-case 0x8E: ST_AB(_X);
-
-case 0x84: ST_ZP(_Y);
-case 0x94: ST_ZPX(_Y);
-case 0x8C: ST_AB(_Y);
-
-/* BCC */
-case 0x90: if(_P&C_FLAG) _PC++; else {JR();} break;
-
-/* BCS */
-case 0xB0: if(_P&C_FLAG) {JR();} else _PC++; break;
-
-/* BEQ */
-case 0xF0: if(_P&Z_FLAG) {JR();} else _PC++; break;
-
-/* BNE */
-case 0xD0: if(_P&Z_FLAG) _PC++; else {JR();} break;
-
-/* BMI */
-case 0x30: if(_P&N_FLAG) {JR();} else _PC++; break;
-
-/* BPL */
-case 0x10: if(_P&N_FLAG) _PC++; else {JR();} break;
-
-/* BVC */
-case 0x50: if(_P&V_FLAG) _PC++; else {JR();} break;
-
-/* BVS */
-case 0x70: if(_P&V_FLAG) {JR();} else _PC++; break;
-
-/* Here comes the undocumented instructions. Note that this implementation
- may be "wrong". If so, please tell me.
-*/
-
-/* AAC */
-case 0x2B:
-case 0x0B: LD_IM(AND;_P&=~C_FLAG;_P|=_A>>7);
-
-/* AAX */
-case 0x87: ST_ZP(_A&_X);
-case 0x97: ST_ZPY(_A&_X);
-case 0x8F: ST_AB(_A&_X);
-case 0x83: ST_IX(_A&_X);
-
-/* ARR - ARGH, MATEY! */
-case 0x6B: {
- uint8 arrtmp;
- LD_IM(AND;_P&=~V_FLAG;_P|=(_A^(_A>>1))&0x40;arrtmp=_A>>7;_A>>=1;_A|=(_P&C_FLAG)<<7;_P&=~C_FLAG;_P|=arrtmp;X_ZN(_A));
- }
-/* ASR */
-case 0x4B: LD_IM(AND;LSRA);
-
-/* ATX(OAL) Is this(OR with $EE) correct? */
-case 0xAB: LD_IM(_A|=0xEE;AND;_X=_A);
-
-/* AXS */
-case 0xCB: LD_IM(AXS);
-
-/* DCP */
-case 0xC7: RMW_ZP(DEC;CMP);
-case 0xD7: RMW_ZPX(DEC;CMP);
-case 0xCF: RMW_AB(DEC;CMP);
-case 0xDF: RMW_ABX(DEC;CMP);
-case 0xDB: RMW_ABY(DEC;CMP);
-case 0xC3: RMW_IX(DEC;CMP);
-case 0xD3: RMW_IY(DEC;CMP);
-
-/* ISC */
-case 0xE7: RMW_ZP(INC;SBC);
-case 0xF7: RMW_ZPX(INC;SBC);
-case 0xEF: RMW_AB(INC;SBC);
-case 0xFF: RMW_ABX(INC;SBC);
-case 0xFB: RMW_ABY(INC;SBC);
-case 0xE3: RMW_IX(INC;SBC);
-case 0xF3: RMW_IY(INC;SBC);
-
-/* DOP */
-
-case 0x04: _PC++;break;
-case 0x14: _PC++;break;
-case 0x34: _PC++;break;
-case 0x44: _PC++;break;
-case 0x54: _PC++;break;
-case 0x64: _PC++;break;
-case 0x74: _PC++;break;
-
-case 0x80: _PC++;break;
-case 0x82: _PC++;break;
-case 0x89: _PC++;break;
-case 0xC2: _PC++;break;
-case 0xD4: _PC++;break;
-case 0xE2: _PC++;break;
-case 0xF4: _PC++;break;
-
-/* KIL */
-
-case 0x02:
-case 0x12:
-case 0x22:
-case 0x32:
-case 0x42:
-case 0x52:
-case 0x62:
-case 0x72:
-case 0x92:
-case 0xB2:
-case 0xD2:
-case 0xF2:ADDCYC(0xFF);
- _jammed=1;
- _PC--;
- break;
-
-/* LAR */
-case 0xBB: RMW_ABY(_S&=x;_A=_X=_S;X_ZN(_X));
-
-/* LAX */
-case 0xA7: LD_ZP(LDA;LDX);
-case 0xB7: LD_ZPY(LDA;LDX);
-case 0xAF: LD_AB(LDA;LDX);
-case 0xBF: LD_ABY(LDA;LDX);
-case 0xA3: LD_IX(LDA;LDX);
-case 0xB3: LD_IY(LDA;LDX);
-
-/* NOP */
-case 0x1A:
-case 0x3A:
-case 0x5A:
-case 0x7A:
-case 0xDA:
-case 0xFA: break;
-
-/* RLA */
-case 0x27: RMW_ZP(ROL;AND);
-case 0x37: RMW_ZPX(ROL;AND);
-case 0x2F: RMW_AB(ROL;AND);
-case 0x3F: RMW_ABX(ROL;AND);
-case 0x3B: RMW_ABY(ROL;AND);
-case 0x23: RMW_IX(ROL;AND);
-case 0x33: RMW_IY(ROL;AND);
-
-/* RRA */
-case 0x67: RMW_ZP(ROR;ADC);
-case 0x77: RMW_ZPX(ROR;ADC);
-case 0x6F: RMW_AB(ROR;ADC);
-case 0x7F: RMW_ABX(ROR;ADC);
-case 0x7B: RMW_ABY(ROR;ADC);
-case 0x63: RMW_IX(ROR;ADC);
-case 0x73: RMW_IY(ROR;ADC);
-
-/* SLO */
-case 0x07: RMW_ZP(ASL;ORA);
-case 0x17: RMW_ZPX(ASL;ORA);
-case 0x0F: RMW_AB(ASL;ORA);
-case 0x1F: RMW_ABX(ASL;ORA);
-case 0x1B: RMW_ABY(ASL;ORA);
-case 0x03: RMW_IX(ASL;ORA);
-case 0x13: RMW_IY(ASL;ORA);
-
-/* SRE */
-case 0x47: RMW_ZP(LSR;EOR);
-case 0x57: RMW_ZPX(LSR;EOR);
-case 0x4F: RMW_AB(LSR;EOR);
-case 0x5F: RMW_ABX(LSR;EOR);
-case 0x5B: RMW_ABY(LSR;EOR);
-case 0x43: RMW_IX(LSR;EOR);
-case 0x53: RMW_IY(LSR;EOR);
-
-/* AXA - SHA */
-case 0x93: ST_IY(_A&_X&(((A-_Y)>>8)+1));
-case 0x9F: ST_ABY(_A&_X&(((A-_Y)>>8)+1));
-
-/* SYA */
-case 0x9C: ST_ABX(_Y&(((A-_X)>>8)+1));
-
-/* SXA */
-case 0x9E: ST_ABY(_X&(((A-_Y)>>8)+1));
-
-/* XAS */
-case 0x9B: _S=_A&_X;ST_ABY(_S& (((A-_Y)>>8)+1) );
-
-/* TOP */
-case 0x0C: LD_AB(;);
-case 0x1C:
-case 0x3C:
-case 0x5C:
-case 0x7C:
-case 0xDC:
-case 0xFC: LD_ABX(;);
-
-/* XAA - BIG QUESTION MARK HERE */
-case 0x8B: _A|=0xEE; _A&=_X; LD_IM(AND);
+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ * Copyright (C) 2002 Xodnizel\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program; if not, write to the Free Software\r
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+ */\r
+\r
+case 0x00: /* BRK */\r
+ _PC++;\r
+ PUSH(_PC>>8);\r
+ PUSH(_PC);\r
+ PUSH(_P|U_FLAG|B_FLAG);\r
+ _P|=I_FLAG;\r
+ _PI|=I_FLAG;\r
+ _PC=RdMem(0xFFFE);\r
+ _PC|=RdMem(0xFFFF)<<8;\r
+ break;\r
+\r
+case 0x40: /* RTI */\r
+ _P=POP();\r
+ /* _PI=_P; This is probably incorrect, so it's commented out. */\r
+ _PI = _P;\r
+ _PC=POP();\r
+ _PC|=POP()<<8;\r
+ break;\r
+ \r
+case 0x60: /* RTS */\r
+ _PC=POP();\r
+ _PC|=POP()<<8;\r
+ _PC++;\r
+ break;\r
+\r
+case 0x48: /* PHA */\r
+ PUSH(_A);\r
+ break;\r
+case 0x08: /* PHP */\r
+ PUSH(_P|U_FLAG|B_FLAG);\r
+ break;\r
+case 0x68: /* PLA */\r
+ _A=POP();\r
+ X_ZN(_A);\r
+ break;\r
+case 0x28: /* PLP */\r
+ _P=POP();\r
+ break;\r
+case 0x4C:\r
+ {\r
+ uint16 ptmp=_PC;\r
+ unsigned int npc;\r
+\r
+ npc=RdMem(ptmp);\r
+ ptmp++;\r
+ npc|=RdMem(ptmp)<<8;\r
+ _PC=npc;\r
+ }\r
+ break; /* JMP ABSOLUTE */\r
+case 0x6C: \r
+ {\r
+ uint32 tmp;\r
+ GetAB(tmp);\r
+ _PC=RdMem(tmp);\r
+ _PC|=RdMem( ((tmp+1)&0x00FF) | (tmp&0xFF00))<<8;\r
+ }\r
+ break;\r
+case 0x20: /* JSR */\r
+ {\r
+ uint8 npc;\r
+ npc=RdMem(_PC);\r
+ _PC++;\r
+ PUSH(_PC>>8);\r
+ PUSH(_PC);\r
+ _PC=RdMem(_PC)<<8;\r
+ _PC|=npc;\r
+ }\r
+ break;\r
+\r
+case 0xAA: /* TAX */\r
+ _X=_A;\r
+ X_ZN(_A);\r
+ break;\r
+\r
+case 0x8A: /* TXA */\r
+ _A=_X;\r
+ X_ZN(_A);\r
+ break;\r
+\r
+case 0xA8: /* TAY */\r
+ _Y=_A;\r
+ X_ZN(_A);\r
+ break;\r
+case 0x98: /* TYA */\r
+ _A=_Y;\r
+ X_ZN(_A);\r
+ break;\r
+\r
+case 0xBA: /* TSX */\r
+ _X=_S;\r
+ X_ZN(_X);\r
+ break;\r
+case 0x9A: /* TXS */\r
+ _S=_X;\r
+ break;\r
+\r
+case 0xCA: /* DEX */\r
+ _X--;\r
+ X_ZN(_X);\r
+ break;\r
+case 0x88: /* DEY */\r
+ _Y--;\r
+ X_ZN(_Y);\r
+ break;\r
+\r
+case 0xE8: /* INX */\r
+ _X++;\r
+ X_ZN(_X);\r
+ break;\r
+case 0xC8: /* INY */\r
+ _Y++;\r
+ X_ZN(_Y);\r
+ break;\r
+\r
+case 0x18: /* CLC */\r
+ _P&=~C_FLAG;\r
+ break;\r
+case 0xD8: /* CLD */\r
+ _P&=~D_FLAG;\r
+ break;\r
+case 0x58: /* CLI */\r
+ _P&=~I_FLAG;\r
+ break;\r
+case 0xB8: /* CLV */\r
+ _P&=~V_FLAG;\r
+ break;\r
+\r
+case 0x38: /* SEC */\r
+ _P|=C_FLAG;\r
+ break;\r
+case 0xF8: /* SED */\r
+ _P|=D_FLAG;\r
+ break;\r
+case 0x78: /* SEI */\r
+ _P|=I_FLAG;\r
+ break;\r
+\r
+case 0xEA: /* NOP */\r
+ break;\r
+\r
+case 0x0A: RMW_A(ASL);\r
+case 0x06: RMW_ZP(ASL);\r
+case 0x16: RMW_ZPX(ASL);\r
+case 0x0E: RMW_AB(ASL);\r
+case 0x1E: RMW_ABX(ASL);\r
+\r
+case 0xC6: RMW_ZP(DEC);\r
+case 0xD6: RMW_ZPX(DEC);\r
+case 0xCE: RMW_AB(DEC);\r
+case 0xDE: RMW_ABX(DEC);\r
+\r
+case 0xE6: RMW_ZP(INC);\r
+case 0xF6: RMW_ZPX(INC);\r
+case 0xEE: RMW_AB(INC);\r
+case 0xFE: RMW_ABX(INC);\r
+\r
+case 0x4A: RMW_A(LSR);\r
+case 0x46: RMW_ZP(LSR);\r
+case 0x56: RMW_ZPX(LSR);\r
+case 0x4E: RMW_AB(LSR);\r
+case 0x5E: RMW_ABX(LSR);\r
+\r
+case 0x2A: RMW_A(ROL);\r
+case 0x26: RMW_ZP(ROL);\r
+case 0x36: RMW_ZPX(ROL);\r
+case 0x2E: RMW_AB(ROL);\r
+case 0x3E: RMW_ABX(ROL);\r
+\r
+case 0x6A: RMW_A(ROR);\r
+case 0x66: RMW_ZP(ROR);\r
+case 0x76: RMW_ZPX(ROR);\r
+case 0x6E: RMW_AB(ROR);\r
+case 0x7E: RMW_ABX(ROR);\r
+\r
+case 0x69: LD_IM(ADC);\r
+case 0x65: LD_ZP(ADC);\r
+case 0x75: LD_ZPX(ADC);\r
+case 0x6D: LD_AB(ADC);\r
+case 0x7D: LD_ABX(ADC);\r
+case 0x79: LD_ABY(ADC);\r
+case 0x61: LD_IX(ADC);\r
+case 0x71: LD_IY(ADC);\r
+\r
+case 0x29: LD_IM(AND);\r
+case 0x25: LD_ZP(AND);\r
+case 0x35: LD_ZPX(AND);\r
+case 0x2D: LD_AB(AND);\r
+case 0x3D: LD_ABX(AND);\r
+case 0x39: LD_ABY(AND);\r
+case 0x21: LD_IX(AND);\r
+case 0x31: LD_IY(AND);\r
+\r
+case 0x24: LD_ZP(BIT);\r
+case 0x2C: LD_AB(BIT);\r
+\r
+case 0xC9: LD_IM(CMP);\r
+case 0xC5: LD_ZP(CMP);\r
+case 0xD5: LD_ZPX(CMP);\r
+case 0xCD: LD_AB(CMP);\r
+case 0xDD: LD_ABX(CMP);\r
+case 0xD9: LD_ABY(CMP);\r
+case 0xC1: LD_IX(CMP);\r
+case 0xD1: LD_IY(CMP);\r
+\r
+case 0xE0: LD_IM(CPX);\r
+case 0xE4: LD_ZP(CPX);\r
+case 0xEC: LD_AB(CPX);\r
+\r
+case 0xC0: LD_IM(CPY);\r
+case 0xC4: LD_ZP(CPY);\r
+case 0xCC: LD_AB(CPY);\r
+\r
+case 0x49: LD_IM(EOR);\r
+case 0x45: LD_ZP(EOR);\r
+case 0x55: LD_ZPX(EOR);\r
+case 0x4D: LD_AB(EOR);\r
+case 0x5D: LD_ABX(EOR);\r
+case 0x59: LD_ABY(EOR);\r
+case 0x41: LD_IX(EOR);\r
+case 0x51: LD_IY(EOR);\r
+\r
+case 0xA9: LD_IM(LDA);\r
+case 0xA5: LD_ZP(LDA);\r
+case 0xB5: LD_ZPX(LDA);\r
+case 0xAD: LD_AB(LDA);\r
+case 0xBD: LD_ABX(LDA);\r
+case 0xB9: LD_ABY(LDA);\r
+case 0xA1: LD_IX(LDA);\r
+case 0xB1: LD_IY(LDA);\r
+\r
+case 0xA2: LD_IM(LDX);\r
+case 0xA6: LD_ZP(LDX);\r
+case 0xB6: LD_ZPY(LDX);\r
+case 0xAE: LD_AB(LDX);\r
+case 0xBE: LD_ABY(LDX);\r
+\r
+case 0xA0: LD_IM(LDY);\r
+case 0xA4: LD_ZP(LDY);\r
+case 0xB4: LD_ZPX(LDY);\r
+case 0xAC: LD_AB(LDY);\r
+case 0xBC: LD_ABX(LDY);\r
+\r
+case 0x09: LD_IM(ORA);\r
+case 0x05: LD_ZP(ORA);\r
+case 0x15: LD_ZPX(ORA);\r
+case 0x0D: LD_AB(ORA);\r
+case 0x1D: LD_ABX(ORA);\r
+case 0x19: LD_ABY(ORA);\r
+case 0x01: LD_IX(ORA);\r
+case 0x11: LD_IY(ORA);\r
+\r
+case 0xEB: /* (undocumented) */\r
+case 0xE9: LD_IM(SBC);\r
+case 0xE5: LD_ZP(SBC);\r
+case 0xF5: LD_ZPX(SBC);\r
+case 0xED: LD_AB(SBC);\r
+case 0xFD: LD_ABX(SBC);\r
+case 0xF9: LD_ABY(SBC);\r
+case 0xE1: LD_IX(SBC);\r
+case 0xF1: LD_IY(SBC);\r
+\r
+case 0x85: ST_ZP(_A);\r
+case 0x95: ST_ZPX(_A);\r
+case 0x8D: ST_AB(_A);\r
+case 0x9D: ST_ABX(_A);\r
+case 0x99: ST_ABY(_A);\r
+case 0x81: ST_IX(_A);\r
+case 0x91: ST_IY(_A);\r
+\r
+case 0x86: ST_ZP(_X);\r
+case 0x96: ST_ZPY(_X);\r
+case 0x8E: ST_AB(_X);\r
+\r
+case 0x84: ST_ZP(_Y);\r
+case 0x94: ST_ZPX(_Y);\r
+case 0x8C: ST_AB(_Y);\r
+\r
+/* BCC */\r
+case 0x90: JR(!(_P&C_FLAG)); break;\r
+\r
+/* BCS */\r
+case 0xB0: JR(_P&C_FLAG); break;\r
+\r
+/* BEQ */\r
+case 0xF0: JR(_P&Z_FLAG); break;\r
+\r
+/* BNE */\r
+case 0xD0: JR(!(_P&Z_FLAG)); break;\r
+\r
+/* BMI */\r
+case 0x30: JR(_P&N_FLAG); break;\r
+\r
+/* BPL */\r
+case 0x10: JR(!(_P&N_FLAG)); break;\r
+\r
+/* BVC */\r
+case 0x50: JR(!(_P&V_FLAG)); break;\r
+\r
+/* BVS */\r
+case 0x70: JR(_P&V_FLAG); break;\r
+\r
+//default: printf("Bad %02x at $%04x\n",b1,X.PC);break;\r
+//ifdef moo\r
+/* Here comes the undocumented instructions block. Note that this implementation\r
+ may be "wrong". If so, please tell me.\r
+*/\r
+\r
+/* AAC */\r
+case 0x2B:\r
+case 0x0B: LD_IM(AND;_P&=~C_FLAG;_P|=_A>>7);\r
+\r
+/* AAX */\r
+case 0x87: ST_ZP(_A&_X);\r
+case 0x97: ST_ZPY(_A&_X);\r
+case 0x8F: ST_AB(_A&_X);\r
+case 0x83: ST_IX(_A&_X);\r
+\r
+/* ARR - ARGH, MATEY! */\r
+case 0x6B: { \r
+ uint8 arrtmp; \r
+ LD_IM(AND;_P&=~V_FLAG;_P|=(_A^(_A>>1))&0x40;arrtmp=_A>>7;_A>>=1;_A|=(_P&C_FLAG)<<7;_P&=~C_FLAG;_P|=arrtmp;X_ZN(_A));\r
+ }\r
+/* ASR */\r
+case 0x4B: LD_IM(AND;LSRA);\r
+\r
+/* ATX(OAL) Is this(OR with $EE) correct? Blargg did some test\r
+ and found the constant to be OR with is $FF for NES */\r
+case 0xAB: LD_IM(_A|=0xFF;AND;_X=_A);\r
+\r
+/* AXS */ \r
+case 0xCB: LD_IM(AXS);\r
+\r
+/* DCP */\r
+case 0xC7: RMW_ZP(DEC;CMP);\r
+case 0xD7: RMW_ZPX(DEC;CMP);\r
+case 0xCF: RMW_AB(DEC;CMP);\r
+case 0xDF: RMW_ABX(DEC;CMP);\r
+case 0xDB: RMW_ABY(DEC;CMP);\r
+case 0xC3: RMW_IX(DEC;CMP);\r
+case 0xD3: RMW_IY(DEC;CMP);\r
+\r
+/* ISB */\r
+case 0xE7: RMW_ZP(INC;SBC);\r
+case 0xF7: RMW_ZPX(INC;SBC);\r
+case 0xEF: RMW_AB(INC;SBC);\r
+case 0xFF: RMW_ABX(INC;SBC);\r
+case 0xFB: RMW_ABY(INC;SBC);\r
+case 0xE3: RMW_IX(INC;SBC);\r
+case 0xF3: RMW_IY(INC;SBC);\r
+\r
+/* DOP */\r
+\r
+case 0x04: _PC++;break;\r
+case 0x14: _PC++;break;\r
+case 0x34: _PC++;break;\r
+case 0x44: _PC++;break;\r
+case 0x54: _PC++;break;\r
+case 0x64: _PC++;break;\r
+case 0x74: _PC++;break;\r
+\r
+case 0x80: _PC++;break;\r
+case 0x82: _PC++;break;\r
+case 0x89: _PC++;break;\r
+case 0xC2: _PC++;break;\r
+case 0xD4: _PC++;break;\r
+case 0xE2: _PC++;break;\r
+case 0xF4: _PC++;break;\r
+\r
+/* KIL */\r
+\r
+case 0x02:\r
+case 0x12:\r
+case 0x22:\r
+case 0x32:\r
+case 0x42:\r
+case 0x52:\r
+case 0x62:\r
+case 0x72:\r
+case 0x92:\r
+case 0xB2:\r
+case 0xD2:\r
+case 0xF2:ADDCYC(0xFF);\r
+ _jammed=1;\r
+ _PC--;\r
+ break;\r
+\r
+/* LAR */\r
+case 0xBB: RMW_ABY(_S&=x;_A=_X=_S;X_ZN(_X));\r
+\r
+/* LAX */\r
+case 0xA7: LD_ZP(LDA;LDX);\r
+case 0xB7: LD_ZPY(LDA;LDX);\r
+case 0xAF: LD_AB(LDA;LDX);\r
+case 0xBF: LD_ABY(LDA;LDX);\r
+case 0xA3: LD_IX(LDA;LDX);\r
+case 0xB3: LD_IY(LDA;LDX);\r
+\r
+/* NOP */\r
+case 0x1A:\r
+case 0x3A:\r
+case 0x5A:\r
+case 0x7A:\r
+case 0xDA:\r
+case 0xFA: break;\r
+\r
+/* RLA */\r
+case 0x27: RMW_ZP(ROL;AND);\r
+case 0x37: RMW_ZPX(ROL;AND);\r
+case 0x2F: RMW_AB(ROL;AND);\r
+case 0x3F: RMW_ABX(ROL;AND);\r
+case 0x3B: RMW_ABY(ROL;AND);\r
+case 0x23: RMW_IX(ROL;AND);\r
+case 0x33: RMW_IY(ROL;AND);\r
+\r
+/* RRA */\r
+case 0x67: RMW_ZP(ROR;ADC);\r
+case 0x77: RMW_ZPX(ROR;ADC);\r
+case 0x6F: RMW_AB(ROR;ADC);\r
+case 0x7F: RMW_ABX(ROR;ADC);\r
+case 0x7B: RMW_ABY(ROR;ADC);\r
+case 0x63: RMW_IX(ROR;ADC);\r
+case 0x73: RMW_IY(ROR;ADC);\r
+\r
+/* SLO */\r
+case 0x07: RMW_ZP(ASL;ORA);\r
+case 0x17: RMW_ZPX(ASL;ORA);\r
+case 0x0F: RMW_AB(ASL;ORA);\r
+case 0x1F: RMW_ABX(ASL;ORA);\r
+case 0x1B: RMW_ABY(ASL;ORA);\r
+case 0x03: RMW_IX(ASL;ORA);\r
+case 0x13: RMW_IY(ASL;ORA);\r
+\r
+/* SRE */\r
+case 0x47: RMW_ZP(LSR;EOR);\r
+case 0x57: RMW_ZPX(LSR;EOR);\r
+case 0x4F: RMW_AB(LSR;EOR);\r
+case 0x5F: RMW_ABX(LSR;EOR);\r
+case 0x5B: RMW_ABY(LSR;EOR);\r
+case 0x43: RMW_IX(LSR;EOR);\r
+case 0x53: RMW_IY(LSR;EOR);\r
+\r
+/* AXA - SHA */\r
+case 0x93: ST_IY(_A&_X&(((A-_Y)>>8)+1));\r
+case 0x9F: ST_ABY(_A&_X&(((A-_Y)>>8)+1));\r
+\r
+/* SYA */\r
+case 0x9C: ST_ABX(_Y&(((A-_X)>>8)+1));\r
+\r
+/* SXA */\r
+case 0x9E: ST_ABY(_X&(((A-_Y)>>8)+1));\r
+\r
+/* XAS */\r
+case 0x9B: _S=_A&_X;ST_ABY(_S& (((A-_Y)>>8)+1) );\r
+\r
+/* TOP */\r
+case 0x0C: LD_AB(;);\r
+case 0x1C: \r
+case 0x3C: \r
+case 0x5C: \r
+case 0x7C: \r
+case 0xDC: \r
+case 0xFC: LD_ABX(;);\r
+\r
+/* XAA - BIG QUESTION MARK HERE */\r
+case 0x8B: _A|=0xEE; _A&=_X; LD_IM(AND);\r
+//endif\r
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