Before presenting the data we need to establish some conventions:
- The opcode bits are separated in 3 octal numbers (x, y, z) where x = MSB and Z = LSB
- The tables are categorized based on a constant value, like z = 0
X=0 and Z=0
Relative jumps and others
| Mmemonic | x y z | Hex |
|---|---|---|
| NOP | 00 000 000 | 0x00 |
| LD (nn),SP | 00 001 000 | 0x08 |
| STOP | 00 010 000 | 0x10 |
| JR n | 00 011 000 | 0x18 |
| JR NZ,n | 00 100 000 | 0x20 |
| JR Z,n | 00 101 000 | 0x28 |
| JR NC,n | 00 110 000 | 0x30 |
| JR C,n | 00 111 000 | 0x38 |
X=0 and Z=1
Loads and additions of 16 bit registers with immediate short
| Mmemonic | x y z | Hex |
|---|---|---|
| LD BC,nn | 00 000 001 | 0x01 |
| ADD HL,BC | 00 001 001 | 0x09 |
| LD DE,nn | 00 010 001 | 0x11 |
| ADD HL,DE | 00 011 001 | 0x19 |
| LD HL,nn | 00 100 001 | 0x21 |
| ADD HL,HL | 00 101 001 | 0x29 |
| LD SP,nn | 00 110 001 | 0x31 |
| ADD HL,SP | 00 111 001 | 0x39 |
X=0 and Z=2
Loads using 16 bit registers
| Mmemonic | x y z | Hex |
|---|---|---|
| LD (BC),A | 00 000 010 | 0x02 |
| LD A,(BC) | 00 001 010 | 0x0A |
| LD (DE),A | 00 010 010 | 0x12 |
| LD A,(DE) | 00 011 010 | 0x1A |
| LD (HL+),A | 00 100 010 | 0x22 |
| LD A,(HL+) | 00 101 010 | 0x2A |
| LD (HL-),A | 00 110 010 | 0x32 |
| LD A,(HL-) | 00 111 010 | 0x3A |
X=0 and Z=3
Increment/Decrement operations in 16 bit registers
| Mmemonic | x y z | Hex |
|---|---|---|
| INC BC | 00 000 011 | 0x03 |
| DEC BC | 00 001 011 | 0x0B |
| INC DE | 00 010 011 | 0x13 |
| DEC DE | 00 011 011 | 0x1B |
| INC HL | 00 100 011 | 0x23 |
| DEC HL | 00 101 011 | 0x2B |
| INC SP | 00 110 011 | 0x33 |
| DEC SP | 00 111 011 | 0x3B |
X=0 and Z=4
Increment operations in 8 bit registers
| Mmemonic | x y z | Hex |
|---|---|---|
| INC B | 00 000 100 | 0x04 |
| INC C | 00 001 100 | 0x0C |
| INC D | 00 010 100 | 0x14 |
| INC E | 00 011 100 | 0x1C |
| INC H | 00 100 100 | 0x24 |
| INC L | 00 101 100 | 0x2C |
| INC (HL) | 00 110 100 | 0x34 |
| INC A | 00 111 100 | 0x3C |
X=0 and Z=5
Decrement operations in 8 bit registers
| Mmemonic | x y z | Hex |
|---|---|---|
| DEC B | 00 000 101 | 0x05 |
| DEC C | 00 001 101 | 0x0D |
| DEC D | 00 010 101 | 0x15 |
| DEC E | 00 011 101 | 0x1D |
| DEC H | 00 100 101 | 0x25 |
| DEC L | 00 101 101 | 0x2D |
| DEC (HL) | 00 110 101 | 0x35 |
| DEC A | 00 111 101 | 0x3D |
X=0 and Z=6
Load with immediate bytes
| Mmemonic | x y z | Hex |
|---|---|---|
| LD B,n | 00 000 110 | 0x06 |
| LD C,n | 00 001 110 | 0x0E |
| LD D,n | 00 010 110 | 0x16 |
| LD E,n | 00 011 110 | 0x1E |
| LD H,n | 00 100 110 | 0x26 |
| LD L,n | 00 101 110 | 0x2E |
| LD (HL),n | 00 110 110 | 0x36 |
| LD A,n | 00 111 110 | 0x3E |
X=0 and Z=7
| Mmemonic | x y z | Hex |
|---|---|---|
| RLC A | 00 000 111 | 0x07 |
| RRC A | 00 001 111 | 0x0F |
| RL A | 00 010 111 | 0x17 |
| RR A | 00 011 111 | 0x1F |
| DAA | 00 100 111 | 0x27 |
| CPL | 00 101 111 | 0x2F |
| SCF | 00 110 111 | 0x37 |
| CCF | 00 111 111 | 0x3F |
X=1 and Y=0
LD B,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD B,B | 01 000 000 | 0x40 |
| LD B,C | 01 000 001 | 0x41 |
| LD B,D | 01 000 010 | 0x42 |
| LD B,E | 01 000 011 | 0x43 |
| LD B,H | 01 000 100 | 0x44 |
| LD B,L | 01 000 101 | 0x45 |
| LD B,(HL) | 01 000 110 | 0x46 |
| LD B,A | 01 000 111 | 0x47 |
X=1 and Y=1
LD C,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD C,B | 01 001 000 | 0x48 |
| LD C,C | 01 001 001 | 0x49 |
| LD C,D | 01 001 010 | 0x4A |
| LD C,E | 01 001 011 | 0x4B |
| LD C,H | 01 001 100 | 0x4C |
| LD C,L | 01 001 101 | 0x4D |
| LD C,(HL) | 01 001 110 | 0x4E |
| LD C,A | 01 001 111 | 0x4F |
X=1 and Y=2
LD D,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD D,B | 01 010 000 | 0x50 |
| LD D,C | 01 010 001 | 0x51 |
| LD D,D | 01 010 010 | 0x52 |
| LD D,E | 01 010 011 | 0x53 |
| LD D,H | 01 010 100 | 0x54 |
| LD D,L | 01 010 101 | 0x55 |
| LD D,(HL) | 01 010 110 | 0x56 |
| LD D,A | 01 010 111 | 0x57 |
X=1 and Y=3
LD E,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD E,B | 01 011 000 | 0x58 |
| LD E,C | 01 011 001 | 0x59 |
| LD E,D | 01 011 010 | 0x5A |
| LD E,E | 01 011 011 | 0x5B |
| LD E,H | 01 011 100 | 0x5C |
| LD E,L | 01 011 101 | 0x5D |
| LD E,(HL) | 01 011 110 | 0x5E |
| LD E,A | 01 011 111 | 0x5F |
X=1 and Y=4
LD H,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD H,B | 01 100 000 | 0x60 |
| LD H,C | 01 100 001 | 0x61 |
| LD H,D | 01 100 010 | 0x62 |
| LD H,E | 01 100 011 | 0x63 |
| LD H,H | 01 100 100 | 0x64 |
| LD H,L | 01 100 101 | 0x65 |
| LD H,(HL) | 01 100 110 | 0x66 |
| LD H,A | 01 100 111 | 0x67 |
X=1 and Y=5
LD L,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD L,B | 01 101 000 | 0x68 |
| LD L,C | 01 101 001 | 0x69 |
| LD L,D | 01 101 010 | 0x6A |
| LD L,E | 01 101 011 | 0x6B |
| LD L,H | 01 101 100 | 0x6C |
| LD L,L | 01 101 101 | 0x6D |
| LD L,(HL) | 01 101 110 | 0x6E |
| LD L,A | 01 101 111 | 0x6F |
X=1 and Y=6
LD (HL),r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD (HL),B | 01 110 000 | 0x70 |
| LD (HL),C | 01 110 001 | 0x71 |
| LD (HL),D | 01 110 010 | 0x72 |
| LD (HL),E | 01 110 011 | 0x73 |
| LD (HL),H | 01 110 100 | 0x74 |
| LD (HL),L | 01 110 101 | 0x75 |
| HALT | 01 110 110 | 0x76 |
| LD (HL),A | 01 110 111 | 0x77 |
X=1 and Y=7
LD A,r
| Mmemonic | x y z | Hex |
|---|---|---|
| LD A,B | 01 111 000 | 0x78 |
| LD A,C | 01 111 001 | 0x79 |
| LD A,D | 01 111 010 | 0x7A |
| LD A,E | 01 111 011 | 0x7B |
| LD A,H | 01 111 100 | 0x7C |
| LD A,L | 01 111 101 | 0x7D |
| LD A,(HL) | 01 111 110 | 0x7E |
| LD A,A | 01 111 111 | 0x7F |
X=2 and Y=0
Add
| Mmemonic | x y z | Hex |
|---|---|---|
| ADD A,B | 10 000 000 | 0x80 |
| ADD A,C | 10 000 001 | 0x81 |
| ADD A,D | 10 000 010 | 0x82 |
| ADD A,E | 10 000 011 | 0x83 |
| ADD A,H | 10 000 100 | 0x84 |
| ADD A,L | 10 000 101 | 0x85 |
| ADD A,(HL) | 10 000 110 | 0x86 |
| ADD A,A | 10 000 111 | 0x87 |
X=2 and Y=1
Add with carry
| Mmemonic | x y z | Hex |
|---|---|---|
| ADC A,B | 10 001 000 | 0x88 |
| ADC A,C | 10 001 001 | 0x89 |
| ADC A,D | 10 001 010 | 0x8A |
| ADC A,E | 10 001 011 | 0x8B |
| ADC A,H | 10 001 100 | 0x8C |
| ADC A,L | 10 001 101 | 0x8D |
| ADC A,(HL) | 10 001 110 | 0x8E |
| ADC A,A | 10 001 111 | 0x8F |
X=2 and Y=2
Subtract
| Mmemonic | x y z | Hex |
|---|---|---|
| SUB A,B | 10 010 000 | 0x90 |
| SUB A,C | 10 010 001 | 0x91 |
| SUB A,D | 10 010 010 | 0x92 |
| SUB A,E | 10 010 011 | 0x93 |
| SUB A,H | 10 010 100 | 0x94 |
| SUB A,L | 10 010 101 | 0x95 |
| SUB A,(HL) | 10 010 110 | 0x96 |
| SUB A,A | 10 010 111 | 0x97 |
X=2 and Y=3
Subtract with carry
| Mmemonic | x y z | Hex |
|---|---|---|
| SBC A,B | 10 011 000 | 0x98 |
| SBC A,C | 10 011 001 | 0x99 |
| SBC A,D | 10 011 010 | 0x9A |
| SBC A,E | 10 011 011 | 0x9B |
| SBC A,H | 10 011 100 | 0x9C |
| SBC A,L | 10 011 101 | 0x9D |
| SBC A,(HL) | 10 011 110 | 0x9E |
| SBC A,A | 10 011 111 | 0x9F |
X=2 and Y=4
Bitwise AND
| Mmemonic | x y z | Hex |
|---|---|---|
| AND A,B | 10 100 000 | 0xA0 |
| AND A,C | 10 100 001 | 0xA1 |
| AND A,D | 10 100 010 | 0xA2 |
| AND A,E | 10 100 011 | 0xA3 |
| AND A,H | 10 100 100 | 0xA4 |
| AND A,L | 10 100 101 | 0xA5 |
| AND A,(HL) | 10 100 110 | 0xA6 |
| AND A,A | 10 100 111 | 0xA7 |
X=2 and Y=5
Bitwise XOR
| Mmemonic | x y z | Hex |
|---|---|---|
| XOR A,B | 10 101 000 | 0xA8 |
| XOR A,C | 10 101 001 | 0xA9 |
| XOR A,D | 10 101 010 | 0xAA |
| XOR A,E | 10 101 011 | 0xAB |
| XOR A,H | 10 101 100 | 0xAC |
| XOR A,L | 10 101 101 | 0xAD |
| XOR A,(HL) | 10 101 110 | 0xAE |
| XOR A,A | 10 101 111 | 0xAF |
X=2 and Y=6
Bitwise OR
| Mmemonic | x y z | Hex |
|---|---|---|
| OR A,B | 10 110 000 | 0xB0 |
| OR A,C | 10 110 001 | 0xB1 |
| OR A,D | 10 110 010 | 0xB2 |
| OR A,E | 10 110 011 | 0xB3 |
| OR A,H | 10 110 100 | 0xB4 |
| OR A,L | 10 110 101 | 0xB5 |
| OR A,(HL) | 10 110 110 | 0xB6 |
| OR A,A | 10 110 111 | 0xB7 |
X=2 and Y=7
Compare
| Mmemonic | x y z | Hex |
|---|---|---|
| CP A,B | 10 111 000 | 0xB8 |
| CP A,C | 10 111 001 | 0xB9 |
| CP A,D | 10 111 010 | 0xBA |
| CP A,E | 10 111 011 | 0xBB |
| CP A,H | 10 111 100 | 0xBC |
| CP A,L | 10 111 101 | 0xBD |
| CP A,(HL) | 10 111 110 | 0xBE |
| CP A,A | 10 111 111 | 0xBF |
X=3 and Z=0
Relative returns, I/O loads and stack manipulation
| Mmemonic | x y z | Hex |
|---|---|---|
| RET NZ | 11 000 000 | 0xC0 |
| RET Z | 11 001 000 | 0xC8 |
| RET NC | 11 010 000 | 0xD0 |
| RET C | 11 011 000 | 0xD8 |
| LD (FF00+n),A | 11 100 000 | 0xE0 |
| ADD SP,d | 11 101 000 | 0xE8 |
| LD A,(FF00+n) | 11 110 000 | 0xF0 |
| LDHL SP,d | 11 111 000 | 0xF8 |
X=3 and Z=1
Stack pop and absolute returns
| Mmemonic | x y z | Hex |
|---|---|---|
| POP BC | 11 000 001 | 0xC1 |
| RET | 11 001 001 | 0xC9 |
| POP DE | 11 010 001 | 0xD1 |
| RETI | 11 011 001 | 0xD9 |
| POP HL | 11 100 001 | 0xE1 |
| JP (HL) | 11 101 001 | 0xE9 |
| POP AF | 11 110 001 | 0xF1 |
| LD SP,HL | 11 111 001 | 0xF9 |
X=3 and Z=2
Absolute conditional jumps, I/O load
| Mmemonic | x y z | Hex |
|---|---|---|
| JP NZ,nn | 11 000 010 | 0xC2 |
| JP Z,nn | 11 001 010 | 0xCA |
| JP NC,nn | 11 010 010 | 0xD2 |
| JP C,nn | 11 011 010 | 0xDA |
| LD (FF00+C),A | 11 100 010 | 0xE2 |
| LD (nn),A | 11 101 010 | 0xEA |
| LD A,(FF00+C) | 11 110 010 | 0xF2 |
| LD A,(nn) | 11 111 010 | 0xFA |
X=3 and Z=3
Absolute jump, prefix and interrupts
| Mmemonic | x y z | Hex |
|---|---|---|
| JP nn | 11 000 011 | 0xC3 |
| PREFIX | 11 001 011 | 0xCB |
| XXXX | 11 010 011 | 0xD3 |
| XXXX | 11 011 011 | 0xDB |
| XXXX | 11 100 011 | 0xE3 |
| XXXX | 11 101 011 | 0xEB |
| DI | 11 110 011 | 0xF3 |
| EI | 11 111 011 | 0xFB |
X=3 and Z=4
Conditional calls
| Mmemonic | x y z | Hex |
|---|---|---|
| CALL NZ,nn | 11 000 100 | 0xC4 |
| CALL Z,nn | 11 001 100 | 0xCC |
| CALL NC,nn | 11 010 100 | 0xD4 |
| CALL C,nn | 11 011 100 | 0xDC |
| XXXX | 11 100 100 | 0xE4 |
| XXXX | 11 101 100 | 0xEC |
| XXXX | 11 110 100 | 0xF4 |
| XXXX | 11 111 100 | 0xFC |
X=3 and Z=5
Stack push
| Mmemonic | x y z | Hex |
|---|---|---|
| PUSH BC | 11 000 101 | 0xC5 |
| CALL nn | 11 001 101 | 0xCD |
| PUSH DE | 11 010 101 | 0xD5 |
| XXXX | 11 011 101 | 0xDD |
| PUSH HL | 11 100 101 | 0xE5 |
| XXXX | 11 101 101 | 0xED |
| PUSH AF | 11 110 101 | 0xF5 |
| XXXX | 11 111 101 | 0xFD |
X=3 and Z=6
8 bit ALU with immediate byte
| Mmemonic | x y z | Hex |
|---|---|---|
| ADD A,n | 11 000 110 | 0xC6 |
| ADC A,n | 11 001 110 | 0xCE |
| SUB A,n | 11 010 110 | 0xD6 |
| SBC A,n | 11 011 110 | 0xDE |
| AND A,n | 11 100 110 | 0xE6 |
| XOR A,n | 11 101 110 | 0xEE |
| OR A,n | 11 110 110 | 0xF6 |
| CP A,n | 11 111 110 | 0xFE |
X=3 and Z=7
Reset table
| Mmemonic | x y z | Hex |
|---|---|---|
| RST 0 | 11 000 111 | 0xC7 |
| RST 8 | 11 001 111 | 0xCF |
| RST 10 | 11 010 111 | 0xD7 |
| RST 18 | 11 011 111 | 0xDF |
| RST 20 | 11 100 111 | 0xE7 |
| RST 28 | 11 101 111 | 0xEF |
| RST 30 | 11 110 111 | 0xF7 |
| RST 38 | 11 111 111 | 0xFF |