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Up to [Tom Morton FrontierVM] / frontvm / cpu|
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1.1 ! root 1: % 0: bit 0 ! 2: % 1: bit 1 ! 3: % c: condition code ! 4: % C: condition codes, except F ! 5: % f: direction ! 6: % i: immediate ! 7: % I: immediate, except 00 and ff ! 8: % j: immediate 1..8 ! 9: % J: immediate 0..15 ! 10: % k: immediate 0..7 ! 11: % K: immediate 0..63 ! 12: % p: immediate 0..3 (CINV and CPUSH: cache field) ! 13: % s: source mode ! 14: % S: source reg ! 15: % d: dest mode ! 16: % D: dest reg ! 17: % r: reg ! 18: % z: size ! 19: % ! 20: % Actually, a sssSSS may appear as a destination, and ! 21: % vice versa. The only difference between sssSSS and ! 22: % dddDDD are the valid addressing modes. There is ! 23: % no match for immediate and pc-rel. addressing modes ! 24: % in case of dddDDD. ! 25: % ! 26: % Arp: --> -(Ar) ! 27: % ArP: --> (Ar)+ ! 28: % L: (xxx.L) ! 29: % ! 30: % Fields on a line: ! 31: % 16 chars bitpattern : ! 32: % CPU level / privildge level : ! 33: % CPU level 0: 68000 ! 34: % 1: 68010 ! 35: % 2: 68020 ! 36: % privilege level 0: not privileged ! 37: % 1: unprivileged only on 68000 (check regs.s) ! 38: % 2: privileged (check regs.s) ! 39: % 3: privileged if size == word (check regs.s) ! 40: % Flags set by instruction: XNZVC : ! 41: % Flags used by instruction: XNZVC : ! 42: % - means flag unaffected / unused ! 43: % 0 means flag reset ! 44: % 1 means flag set ! 45: % ? means programmer was too lazy to check or instruction may trap ! 46: % + means instruction is conditional branch ! 47: % everything else means flag set/used ! 48: % / means instruction is unconditional branch/call ! 49: % x means flag is unknown and well-behaved programs shouldn't check it ! 50: % srcaddr status destaddr status : ! 51: % bitmasks of ! 52: % 1 means fetched ! 53: % 2 means stored ! 54: % 4 means jump offset ! 55: % 8 means jump address ! 56: % instruction ! 57: % ! 58: ! 59: 0000 0000 0011 1100:00:XNZVC:XNZVC:10: ORSR.B #1 ! 60: 0000 0000 0111 1100:02:?????:?????:10: ORSR.W #1 ! 61: 0000 0000 zzdd dDDD:00:-NZ00:-----:13: OR.z #z,d[!Areg] ! 62: 0000 0010 0011 1100:00:XNZVC:XNZVC:10: ANDSR.B #1 ! 63: 0000 0010 0111 1100:02:?????:?????:10: ANDSR.W #1 ! 64: 0000 0010 zzdd dDDD:00:-NZ00:-----:13: AND.z #z,d[!Areg] ! 65: 0000 0100 zzdd dDDD:00:XNZVC:-----:13: SUB.z #z,d[!Areg] ! 66: 0000 0110 zzdd dDDD:00:XNZVC:-----:13: ADD.z #z,d[!Areg] ! 67: 0000 1000 00ss sSSS:00:--Z--:-----:11: BTST #1,s[!Areg] ! 68: 0000 1000 01ss sSSS:00:--Z--:-----:13: BCHG #1,s[!Areg,Immd] ! 69: 0000 1000 10ss sSSS:00:--Z--:-----:13: BCLR #1,s[!Areg,Immd] ! 70: 0000 1000 11ss sSSS:00:--Z--:-----:13: BSET #1,s[!Areg,Immd] ! 71: 0000 1010 0011 1100:00:XNZVC:XNZVC:10: EORSR.B #1 ! 72: 0000 1010 0111 1100:02:?????:?????:10: EORSR.W #1 ! 73: 0000 1010 zzdd dDDD:00:-NZ00:-----:13: EOR.z #z,d[!Areg] ! 74: 0000 1100 zzss sSSS:00:-NZVC:-----:11: CMP.z #z,s[!Areg,Immd] ! 75: ! 76: 0000 rrr1 00dd dDDD:00:-----:-----:12: MVPMR.W d[Areg-Ad16],Dr ! 77: 0000 rrr1 01dd dDDD:00:-----:-----:12: MVPMR.L d[Areg-Ad16],Dr ! 78: 0000 rrr1 10dd dDDD:00:-----:-----:12: MVPRM.W Dr,d[Areg-Ad16] ! 79: 0000 rrr1 11dd dDDD:00:-----:-----:12: MVPRM.L Dr,d[Areg-Ad16] ! 80: 0000 rrr1 00ss sSSS:00:--Z--:-----:11: BTST Dr,s[!Areg] ! 81: 0000 rrr1 01ss sSSS:00:--Z--:-----:13: BCHG Dr,s[!Areg,Immd] ! 82: 0000 rrr1 10ss sSSS:00:--Z--:-----:13: BCLR Dr,s[!Areg,Immd] ! 83: 0000 rrr1 11ss sSSS:00:--Z--:-----:13: BSET Dr,s[!Areg,Immd] ! 84: ! 85: 0001 DDDd ddss sSSS:00:-NZ00:-----:12: MOVE.B s,d[!Areg] ! 86: 0010 DDDd ddss sSSS:00:-----:-----:12: MOVEA.L s,d[Areg] ! 87: 0010 DDDd ddss sSSS:00:-NZ00:-----:12: MOVE.L s,d[!Areg] ! 88: 0011 DDDd ddss sSSS:00:-----:-----:12: MOVEA.W s,d[Areg] ! 89: 0011 DDDd ddss sSSS:00:-NZ00:-----:12: MOVE.W s,d[!Areg] ! 90: ! 91: 0100 0000 zzdd dDDD:00:XxZxC:X-Z--:30: NEGX.z d[!Areg] ! 92: 0100 0000 11dd dDDD:01:?????:?????:10: MVSR2.W d[!Areg] ! 93: 0100 0010 zzdd dDDD:00:-0100:-----:20: CLR.z d[!Areg] ! 94: 0100 0010 11dd dDDD:10:?????:?????:10: MVSR2.B d[!Areg] ! 95: 0100 0100 zzdd dDDD:00:XNZVC:-----:30: NEG.z d[!Areg] ! 96: 0100 0100 11ss sSSS:00:XNZVC:-----:10: MV2SR.B s[!Areg] ! 97: 0100 0110 zzdd dDDD:00:-NZ00:-----:30: NOT.z d[!Areg] ! 98: 0100 0110 11ss sSSS:02:?????:?????:10: MV2SR.W s[!Areg] ! 99: 0100 1000 00dd dDDD:00:X?Z?C:X-Z--:30: NBCD.B d[!Areg] ! 100: 0100 1000 01ss sSSS:00:-NZ00:-----:30: SWAP.W s[Dreg] ! 101: 0100 1000 01ss sSSS:00:-----:-----:00: PEA.L s[!Dreg,Areg,Aipi,Apdi,Immd] ! 102: 0100 1000 10dd dDDD:00:-NZ00:-----:30: EXT.W d[Dreg] ! 103: 0100 1000 10dd dDDD:00:-----:-----:02: MVMLE.W #1,d[!Dreg,Areg,Aipi] ! 104: 0100 1000 11dd dDDD:00:-NZ00:-----:30: EXT.L d[Dreg] ! 105: 0100 1000 11dd dDDD:00:-----:-----:02: MVMLE.L #1,d[!Dreg,Areg,Aipi] ! 106: 0100 1001 11dd dDDD:00:-NZ00:-----:30: EXT.B d[Dreg] ! 107: 0100 1010 zzss sSSS:00:-NZ00:-----:10: TST.z s ! 108: 0100 1010 11dd dDDD:00:?????:?????:30: TAS.B d[!Areg] ! 109: 0100 1010 1111 1100:00:?????:?????:00: ILLEGAL ! 110: 0100 1100 10ss sSSS:00:-----:-----:01: MVMEL.W #1,s[!Dreg,Areg,Apdi,Immd] ! 111: 0100 1100 11ss sSSS:00:-----:-----:01: MVMEL.L #1,s[!Dreg,Areg,Apdi,Immd] ! 112: 0100 1110 0100 JJJJ:00:-----:XNZVC:10: TRAP #J ! 113: 0100 1110 0101 0rrr:00:-----:-----:31: LINK.W Ar,#1 ! 114: 0100 1110 0101 1rrr:00:-----:-----:30: UNLK.L Ar ! 115: 0100 1110 0110 0rrr:02:-----:-----:10: MVR2USP.L Ar ! 116: 0100 1110 0110 1rrr:02:-----:-----:20: MVUSP2R.L Ar ! 117: 0100 1110 0111 0000:02:-----:-----:00: RESET ! 118: 0100 1110 0111 0001:00:-----:-----:00: NOP ! 119: 0100 1110 0111 0010:02:XNZVC:-----:10: STOP #1 ! 120: 0100 1110 0111 0011:02:XNZVC:-----:00: RTE ! 121: 0100 1110 0111 0100:00:?????:?????:10: RTD #1 ! 122: 0100 1110 0111 0101:00:-----:-----:00: RTS ! 123: 0100 1110 0111 0110:00:-----:XNZVC:00: TRAPV ! 124: 0100 1110 0111 0111:00:XNZVC:-----:00: RTR ! 125: 0100 1110 0111 1010:12:?????:?????:10: MOVEC2 #1 ! 126: 0100 1110 0111 1011:12:?????:?????:10: MOVE2C #1 ! 127: 0100 1110 10ss sSSS:00://///://///:80: JSR.L s[!Dreg,Areg,Aipi,Apdi,Immd] ! 128: 0100 rrr1 00ss sSSS:00:?????:?????:11: CHK.L s[!Areg],Dr ! 129: 0100 rrr1 10ss sSSS:00:?????:?????:11: CHK.W s[!Areg],Dr ! 130: 0100 1110 11ss sSSS:00://///://///:80: JMP.L s[!Dreg,Areg,Aipi,Apdi,Immd] ! 131: 0100 rrr1 11ss sSSS:00:-----:-----:02: LEA.L s[!Dreg,Areg,Aipi,Apdi,Immd],Ar ! 132: ! 133: 0101 jjj0 01dd dDDD:00:-----:-----:13: ADDA.W #j,d[Areg] ! 134: 0101 jjj0 10dd dDDD:00:-----:-----:13: ADDA.L #j,d[Areg] ! 135: 0101 jjj0 zzdd dDDD:00:XNZVC:-----:13: ADD.z #j,d[!Areg] ! 136: 0101 jjj1 01dd dDDD:00:-----:-----:13: SUBA.W #j,d[Areg] ! 137: 0101 jjj1 10dd dDDD:00:-----:-----:13: SUBA.L #j,d[Areg] ! 138: 0101 jjj1 zzdd dDDD:00:XNZVC:-----:13: SUB.z #j,d[!Areg] ! 139: 0101 cccc 1100 1rrr:00:-----:-++++:31: DBcc.W Dr,#1 ! 140: 0101 cccc 11dd dDDD:00:-----:-++++:20: Scc.B d[!Areg] ! 141: ! 142: % Bxx.L is 68020 only, but setting the CPU level to 2 would give illegal ! 143: % instruction exceptions when compiling a 68000 only emulation, which isn't ! 144: % what we want either. ! 145: 0110 0001 0000 0000:00://///://///:40: BSR.W #1 ! 146: 0110 0001 IIII IIII:00://///://///:40: BSR.B #i ! 147: 0110 0001 1111 1111:00://///://///:40: BSR.L #2 ! 148: 0110 CCCC 0000 0000:00:-----:-++++:40: Bcc.W #1 ! 149: 0110 CCCC IIII IIII:00:-----:-++++:40: Bcc.B #i ! 150: 0110 CCCC 1111 1111:00:-----:-++++:40: Bcc.L #2 ! 151: ! 152: 0111 rrr0 iiii iiii:00:-NZ00:-----:12: MOVE.L #i,Dr ! 153: ! 154: 1000 rrr0 zzss sSSS:00:-NZ00:-----:13: OR.z s[!Areg],Dr ! 155: 1000 rrr0 11ss sSSS:00:?????:?????:13: DIVU.W s[!Areg],Dr ! 156: 1000 rrr1 00dd dDDD:00:XxZxC:X-Z--:13: SBCD.B d[Dreg],Dr ! 157: 1000 rrr1 00dd dDDD:00:XxZxC:X-Z--:13: SBCD.B d[Areg-Apdi],Arp ! 158: 1000 rrr1 zzdd dDDD:00:-NZ00:-----:13: OR.z Dr,d[!Areg,Dreg] ! 159: 1000 rrr1 11ss sSSS:00:?????:?????:13: DIVS.W s[!Areg],Dr ! 160: ! 161: 1001 rrr0 zzss sSSS:00:XNZVC:-----:13: SUB.z s,Dr ! 162: 1001 rrr0 11ss sSSS:00:-----:-----:13: SUBA.W s,Ar ! 163: 1001 rrr1 zzdd dDDD:00:XNZVC:X-Z--:13: SUBX.z d[Dreg],Dr ! 164: 1001 rrr1 zzdd dDDD:00:XNZVC:X-Z--:13: SUBX.z d[Areg-Apdi],Arp ! 165: 1001 rrr1 zzdd dDDD:00:XNZVC:-----:13: SUB.z Dr,d[!Areg,Dreg] ! 166: 1001 rrr1 11ss sSSS:00:-----:-----:13: SUBA.L s,Ar ! 167: ! 168: 1011 rrr0 zzss sSSS:00:-NZVC:-----:11: CMP.z s,Dr ! 169: 1011 rrr0 11ss sSSS:00:-NZVC:-----:11: CMPA.W s,Ar ! 170: 1011 rrr1 11ss sSSS:00:-NZVC:-----:11: CMPA.L s,Ar ! 171: 1011 rrr1 zzdd dDDD:00:-NZVC:-----:11: CMPM.z d[Areg-Aipi],ArP ! 172: 1011 rrr1 zzdd dDDD:00:-NZ00:-----:13: EOR.z Dr,d[!Areg] ! 173: ! 174: 1100 rrr0 zzss sSSS:00:-NZ00:-----:13: AND.z s[!Areg],Dr ! 175: 1100 rrr0 11ss sSSS:00:-NZ00:-----:13: MULU.W s[!Areg],Dr ! 176: 1100 rrr1 00dd dDDD:00:XxZxC:X-Z--:13: ABCD.B d[Dreg],Dr ! 177: 1100 rrr1 00dd dDDD:00:XxZxC:X-Z--:13: ABCD.B d[Areg-Apdi],Arp ! 178: 1100 rrr1 zzdd dDDD:00:-NZ00:-----:13: AND.z Dr,d[!Areg,Dreg] ! 179: 1100 rrr1 01dd dDDD:00:-----:-----:33: EXG.L Dr,d[Dreg] ! 180: 1100 rrr1 01dd dDDD:00:-----:-----:33: EXG.L Ar,d[Areg] ! 181: 1100 rrr1 10dd dDDD:00:-----:-----:33: EXG.L Dr,d[Areg] ! 182: 1100 rrr1 11ss sSSS:00:-NZ00:-----:13: MULS.W s[!Areg],Dr ! 183: ! 184: 1101 rrr0 zzss sSSS:00:XNZVC:-----:13: ADD.z s,Dr ! 185: 1101 rrr0 11ss sSSS:00:-----:-----:13: ADDA.W s,Ar ! 186: 1101 rrr1 zzdd dDDD:00:XNZVC:X-Z--:13: ADDX.z d[Dreg],Dr ! 187: 1101 rrr1 zzdd dDDD:00:XNZVC:X-Z--:13: ADDX.z d[Areg-Apdi],Arp ! 188: 1101 rrr1 zzdd dDDD:00:XNZVC:-----:13: ADD.z Dr,d[!Areg,Dreg] ! 189: 1101 rrr1 11ss sSSS:00:-----:-----:13: ADDA.L s,Ar ! 190: ! 191: 1110 jjjf zz00 0RRR:00:XNZVC:-----:13: ASf.z #j,DR ! 192: 1110 jjjf zz00 1RRR:00:XNZ0C:-----:13: LSf.z #j,DR ! 193: 1110 jjjf zz01 0RRR:00:XNZ0C:X----:13: ROXf.z #j,DR ! 194: 1110 jjjf zz01 1RRR:00:-NZ0C:-----:13: ROf.z #j,DR ! 195: 1110 rrrf zz10 0RRR:00:XNZVC:X----:13: ASf.z Dr,DR ! 196: 1110 rrrf zz10 1RRR:00:XNZ0C:X----:13: LSf.z Dr,DR ! 197: 1110 rrrf zz11 0RRR:00:XNZ0C:X----:13: ROXf.z Dr,DR ! 198: 1110 rrrf zz11 1RRR:00:-NZ0C:-----:13: ROf.z Dr,DR ! 199: 1110 000f 11dd dDDD:00:XNZVC:-----:13: ASfW.W d[!Dreg,Areg] ! 200: 1110 001f 11dd dDDD:00:XNZ0C:-----:13: LSfW.W d[!Dreg,Areg] ! 201: 1110 010f 11dd dDDD:00:XNZ0C:X----:13: ROXfW.W d[!Dreg,Areg] ! 202: 1110 011f 11dd dDDD:00:-NZ0C:-----:13: ROfW.W d[!Dreg,Areg] ! 203:
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