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opcode
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opcode
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# 0x00 NOP 1
# 0x01 LXI B,D16 3 B <- byte 3, C <- byte 2
# 0x02 STAX B 1 (BC) <- A
# 0x03 INX B 1 BC <- BC+1
# 0x04 INR B 1 Z, S, P, AC B <- B+1
# 0x05 DCR B 1 Z, S, P, AC B <- B-1
# 0x06 MVI B, D8 2 B <- byte 2
# 0x07 RLC 1 CY A = A << 1; bit 0 = prev bit 7; CY = prev bit 7
0x08 -
# 0x09 DAD B 1 CY HL = HL + BC
# 0x0a LDAX B 1 A <- (BC)
# 0x0b DCX B 1 BC = BC-1
# 0x0c INR C 1 Z, S, P, AC C <- C+1
# 0x0d DCR C 1 Z, S, P, AC C <-C-1
# 0x0e MVI C,D8 2 C <- byte 2
# 0x0f RRC 1 CY A = A >> 1; bit 7 = prev bit 0; CY = prev bit 0
0x10 -
# 0x11 LXI D,D16 3 D <- byte 3, E <- byte 2
# 0x12 STAX D 1 (DE) <- A
# 0x13 INX D 1 DE <- DE + 1
# 0x14 INR D 1 Z, S, P, AC D <- D+1
# 0x15 DCR D 1 Z, S, P, AC D <- D-1
# 0x16 MVI D, D8 2 D <- byte 2
# 0x17 RAL 1 CY A = A << 1; bit 0 = prev CY; CY = prev bit 7
0x18 -
# 0x19 DAD D 1 CY HL = HL + DE
# 0x1a LDAX D 1 A <- (DE)
# 0x1b DCX D 1 DE = DE-1
# 0x1c INR E 1 Z, S, P, AC E <-E+1
# 0x1d DCR E 1 Z, S, P, AC E <- E-1
# 0x1e MVI E,D8 2 E <- byte 2
# 0x1f RAR 1 CY A = A >> 1; bit 7 = prev bit 7; CY = prev bit 0
# 0x20 RIM 1 special
# 0x21 LXI H,D16 3 H <- byte 3, L <- byte 2
# 0x22 SHLD adr 3 (adr) <-L; (adr+1)<-H
# 0x23 INX H 1 HL <- HL + 1
# 0x24 INR H 1 Z, S, P, AC H <- H+1
# 0x25 DCR H 1 Z, S, P, AC H <- H-1
# 0x26 MVI H,D8 2 H <- byte 2
# 0x27 DAA 1 special
0x28 -
# 0x29 DAD H 1 CY HL = HL + HI
# 0x2a LHLD adr 3 L <- (adr); H<-(adr+1)
# 0x2b DCX H 1 HL = HL-1
# 0x2c INR L 1 Z, S, P, AC L <- L+1
# 0x2d DCR L 1 Z, S, P, AC L <- L-1
# 0x2e MVI L, D8 2 L <- byte 2
# 0x2f CMA 1 A <- !A
0x30 SIM 1 special
# 0x31 LXI SP, D16 3 SP.hi <- byte 3, SP.lo <- byte 2
# 0x32 STA adr 3 (adr) <- A
# 0x33 INX SP 1 SP = SP + 1
# 0x34 INR M 1 Z, S, P, AC (HL) <- (HL)+1
# 0x35 DCR M 1 Z, S, P, AC (HL) <- (HL)-1
0x36 MVI M,D8 2 (HL) <- byte 2
# 0x37 STC 1 CY CY = 1
0x38 -
# 0x39 DAD SP 1 CY HL = HL + SP
# 0x3a LDA adr 3 A <- (adr)
# 0x3b DCX SP 1 SP = SP-1
# 0x3c INR A 1 Z, S, P, AC A <- A+1
# 0x3d DCR A 1 Z, S, P, AC A <- A-1
# 0x3e MVI A,D8 2 A <- byte 2
# 0x3f CMC 1 CY CY=!CY
# 0x40 MOV B,B 1 B <- B
# 0x41 MOV B,C 1 B <- C
# 0x42 MOV B,D 1 B <- D
# 0x43 MOV B,E 1 B <- E
# 0x44 MOV B,H 1 B <- H
# 0x45 MOV B,L 1 B <- L
# 0x46 MOV B,M 1 B <- (HL)
# 0x47 MOV B,A 1 B <- A
# 0x48 MOV C,B 1 C <- B
# 0x49 MOV C,C 1 C <- C
# 0x4a MOV C,D 1 C <- D
# 0x4b MOV C,E 1 C <- E
# 0x4c MOV C,H 1 C <- H
# 0x4d MOV C,L 1 C <- L
# 0x4e MOV C,M 1 C <- (HL)
# 0x4f MOV C,A 1 C <- A
# 0x50 MOV D,B 1 D <- B
# 0x51 MOV D,C 1 D <- C
# 0x52 MOV D,D 1 D <- D
# 0x53 MOV D,E 1 D <- E
# 0x54 MOV D,H 1 D <- H
# 0x55 MOV D,L 1 D <- L
# 0x56 MOV D,M 1 D <- (HL)
# 0x57 MOV D,A 1 D <- A
# 0x58 MOV E,B 1 E <- B
# 0x59 MOV E,C 1 E <- C
# 0x5a MOV E,D 1 E <- D
# 0x5b MOV E,E 1 E <- E
# 0x5c MOV E,H 1 E <- H
# 0x5d MOV E,L 1 E <- L
# 0x5e MOV E,M 1 E <- (HL)
# 0x5f MOV E,A 1 E <- A
# 0x60 MOV H,B 1 H <- B
# 0x61 MOV H,C 1 H <- C
# 0x62 MOV H,D 1 H <- D
# 0x63 MOV H,E 1 H <- E
# 0x64 MOV H,H 1 H <- H
# 0x65 MOV H,L 1 H <- L
# 0x66 MOV H,M 1 H <- (HL)
# 0x67 MOV H,A 1 H <- A
# 0x68 MOV L,B 1 L <- B
# 0x69 MOV L,C 1 L <- C
# 0x6a MOV L,D 1 L <- D
# 0x6b MOV L,E 1 L <- E
# 0x6c MOV L,H 1 L <- H
# 0x6d MOV L,L 1 L <- L
# 0x6e MOV L,M 1 L <- (HL)
# 0x6f MOV L,A 1 L <- A
# 0x70 MOV M,B 1 (HL) <- B
# 0x71 MOV M,C 1 (HL) <- C
# 0x72 MOV M,D 1 (HL) <- D
# 0x73 MOV M,E 1 (HL) <- E
# 0x74 MOV M,H 1 (HL) <- H
# 0x75 MOV M,L 1 (HL) <- L
0x76 HLT 1 special
# 0x77 MOV M,A 1 (HL) <- A
# 0x78 MOV A,B 1 A <- B
# 0x79 MOV A,C 1 A <- C
# 0x7a MOV A,D 1 A <- D
# 0x7b MOV A,E 1 A <- E
# 0x7c MOV A,H 1 A <- H
# 0x7d MOV A,L 1 A <- L
# 0x7e MOV A,M 1 A <- (HL)
# 0x7f MOV A,A 1 A <- A
# 0x80 ADD B 1 Z, S, P, CY, AC A <- A + B
# 0x81 ADD C 1 Z, S, P, CY, AC A <- A + C
# 0x82 ADD D 1 Z, S, P, CY, AC A <- A + D
# 0x83 ADD E 1 Z, S, P, CY, AC A <- A + E
# 0x84 ADD H 1 Z, S, P, CY, AC A <- A + H
# 0x85 ADD L 1 Z, S, P, CY, AC A <- A + L
# 0x86 ADD M 1 Z, S, P, CY, AC A <- A + (HL)
# 0x87 ADD A 1 Z, S, P, CY, AC A <- A + A
# 0x88 ADC B 1 Z, S, P, CY, AC A <- A + B + CY
# 0x89 ADC C 1 Z, S, P, CY, AC A <- A + C + CY
# 0x8a ADC D 1 Z, S, P, CY, AC A <- A + D + CY
# 0x8b ADC E 1 Z, S, P, CY, AC A <- A + E + CY
# 0x8c ADC H 1 Z, S, P, CY, AC A <- A + H + CY
# 0x8d ADC L 1 Z, S, P, CY, AC A <- A + L + CY
# 0x8e ADC M 1 Z, S, P, CY, AC A <- A + (HL) + CY
# 0x8f ADC A 1 Z, S, P, CY, AC A <- A + A + CY
# 0x90 SUB B 1 Z, S, P, CY, AC A <- A - B
# 0x91 SUB C 1 Z, S, P, CY, AC A <- A - C
# 0x92 SUB D 1 Z, S, P, CY, AC A <- A + D
# 0x93 SUB E 1 Z, S, P, CY, AC A <- A - E
# 0x94 SUB H 1 Z, S, P, CY, AC A <- A + H
# 0x95 SUB L 1 Z, S, P, CY, AC A <- A - L
# 0x96 SUB M 1 Z, S, P, CY, AC A <- A + (HL)
# 0x97 SUB A 1 Z, S, P, CY, AC A <- A - A
0x98 SBB B 1 Z, S, P, CY, AC A <- A - B - CY
0x99 SBB C 1 Z, S, P, CY, AC A <- A - C - CY
0x9a SBB D 1 Z, S, P, CY, AC A <- A - D - CY
0x9b SBB E 1 Z, S, P, CY, AC A <- A - E - CY
0x9c SBB H 1 Z, S, P, CY, AC A <- A - H - CY
0x9d SBB L 1 Z, S, P, CY, AC A <- A - L - CY
0x9e SBB M 1 Z, S, P, CY, AC A <- A - (HL) - CY
0x9f SBB A 1 Z, S, P, CY, AC A <- A - A - CY
# 0xa0 ANA B 1 Z, S, P, CY, AC A <- A & B
# 0xa1 ANA C 1 Z, S, P, CY, AC A <- A & C
# 0xa2 ANA D 1 Z, S, P, CY, AC A <- A & D
# 0xa3 ANA E 1 Z, S, P, CY, AC A <- A & E
# 0xa4 ANA H 1 Z, S, P, CY, AC A <- A & H
# 0xa5 ANA L 1 Z, S, P, CY, AC A <- A & L
# 0xa6 ANA M 1 Z, S, P, CY, AC A <- A & (HL)
# 0xa7 ANA A 1 Z, S, P, CY, AC A <- A & A
# 0xa8 XRA B 1 Z, S, P, CY, AC A <- A ^ B
# 0xa9 XRA C 1 Z, S, P, CY, AC A <- A ^ C
# 0xaa XRA D 1 Z, S, P, CY, AC A <- A ^ D
# 0xab XRA E 1 Z, S, P, CY, AC A <- A ^ E
# 0xac XRA H 1 Z, S, P, CY, AC A <- A ^ H
# 0xad XRA L 1 Z, S, P, CY, AC A <- A ^ L
# 0xae XRA M 1 Z, S, P, CY, AC A <- A ^ (HL)
# 0xaf XRA A 1 Z, S, P, CY, AC A <- A ^ A
# 0xb0 ORA B 1 Z, S, P, CY, AC A <- A | B
# 0xb1 ORA C 1 Z, S, P, CY, AC A <- A | C
# 0xb2 ORA D 1 Z, S, P, CY, AC A <- A | D
# 0xb3 ORA E 1 Z, S, P, CY, AC A <- A | E
# 0xb4 ORA H 1 Z, S, P, CY, AC A <- A | H
# 0xb5 ORA L 1 Z, S, P, CY, AC A <- A | L
# 0xb6 ORA M 1 Z, S, P, CY, AC A <- A | (HL)
# 0xb7 ORA A 1 Z, S, P, CY, AC A <- A | A
# 0xb8 CMP B 1 Z, S, P, CY, AC A - B
# 0xb9 CMP C 1 Z, S, P, CY, AC A - C
# 0xba CMP D 1 Z, S, P, CY, AC A - D
# 0xbb CMP E 1 Z, S, P, CY, AC A - E
# 0xbc CMP H 1 Z, S, P, CY, AC A - H
# 0xbd CMP L 1 Z, S, P, CY, AC A - L
# 0xbe CMP M 1 Z, S, P, CY, AC A - (HL)
# 0xbf CMP A 1 Z, S, P, CY, AC A - A
# 0xc0 RNZ 1 if NZ, RET
# 0xc1 POP B 1 C <- (sp); B <- (sp+1); sp <- sp+2
# 0xc2 JNZ adr 3 if NZ, PC <- adr
# 0xc3 JMP adr 3 PC <= adr
# 0xc4 CNZ adr 3 if NZ, CALL adr
# 0xc5 PUSH B 1 (sp-2)<-C; (sp-1)<-B; sp <- sp - 2
0xc6 ADI D8 2 Z, S, P, CY, AC A <- A + byte
# 0xc7 RST 0 1 CALL $0
# 0xc8 RZ 1 if Z, RET
# 0xc9 RET 1 PC.lo <- (sp); PC.hi<-(sp+1); SP <- SP+2
# 0xca JZ adr 3 if Z, PC <- adr
0xcb -
# 0xcc CZ adr 3 if Z, CALL adr
# 0xcd CALL adr 3 (SP-1)<-PC.hi;(SP-2)<-PC.lo;SP<-SP+2;PC=adr
# 0xce ACI D8 2 Z, S, P, CY, AC A <- A + data + CY
# 0xcf RST 1 1 CALL $8
# 0xd0 RNC 1 if NCY, RET
# 0xd1 POP D 1 E <- (sp); D <- (sp+1); sp <- sp+2
# 0xd2 JNC adr 3 if NCY, PC<-adr
# 0xd3 OUT D8 2 special
# 0xd4 CNC adr 3 if NCY, CALL adr
# 0xd5 PUSH D 1 (sp-2)<-E; (sp-1)<-D; sp <- sp - 2
# 0xd6 SUI D8 2 Z, S, P, CY, AC A <- A - data
# 0xd7 RST 2 1 CALL $10
# 0xd8 RC 1 if CY, RET
0xd9 -
# 0xda JC adr 3 if CY, PC<-adr
# 0xdb IN D8 2 special
# 0xdc CC adr 3 if CY, CALL adr
0xdd -
# 0xde SBI D8 2 Z, S, P, CY, AC A <- A - data - CY
# 0xdf RST 3 1 CALL $18
0xe0 RPO 1 if PO, RET
# 0xe1 POP H 1 L <- (sp); H <- (sp+1); sp <- sp+2
0xe2 JPO adr 3 if PO, PC <- adr
# 0xe3 XTHL 1 L <-> (SP); H <-> (SP+1)
0xe4 CPO adr 3 if PO, CALL adr
# 0xe5 PUSH H 1 (sp-2)<-L; (sp-1)<-H; sp <- sp - 2
# 0xe6 ANI D8 2 Z, S, P, CY, AC A <- A & data
# 0xe7 RST 4 1 CALL $20
0xe8 RPE 1 if PE, RET
# 0xe9 PCHL 1 PC.hi <- H; PC.lo <- L
0xea JPE adr 3 if PE, PC <- adr
# 0xeb XCHG 1 H <-> D; L <-> E
0xec CPE adr 3 if PE, CALL adr
0xed -
# 0xee XRI D8 2 Z, S, P, CY, AC A <- A ^ data
# 0xef RST 5 1 CALL $28
0xf0 RP 1 if P, RET
# 0xf1 POP PSW 1 flags <- (sp); A <- (sp+1); sp <- sp+2
# 0xf2 JP adr 3 if P=1 PC <- adr
# 0xf3 DI 1 special
0xf4 CP adr 3 if P, PC <- adr
# 0xf5 PUSH PSW 1 (sp-2)<-flags; (sp-1)<-A; sp <- sp - 2
# 0xf6 ORI D8 2 Z, S, P, CY, AC A <- A | data
# 0xf7 RST 6 1 CALL $30
0xf8 RM 1 if M, RET
0xf9 SPHL 1 SP=HL
# 0xfa JM adr 3 if M, PC <- adr
# 0xfb EI 1 special
0xfc CM adr 3 if M, CALL adr
0xfd -
# 0xfe CPI D8 2 Z, S, P, CY, AC A - data
# 0xff RST 7 1 CALL $38