Mnemonic |
Symbolic Operation |
Flags | OP-Code | No. of Bytes |
No. of M Cycles |
No. of T Cycles |
Comments | |||||
| C | Z | P/V | S | N | H | 76 543 210 | ||||||
| LD dd,nn | dd ← nn | • | • | • | • | • | • | 00 dd0 001 ← n → ← n → |
3 | 3 | 10 |
nn Pair 00 BC 00 DE 01 HL 01 SP |
| LD IX,nn | IX ← nn | • | • | • | • | • | • | 11 011 101 00 100 001 ← n → ← n → |
4 | 4 | 14 | |
| LD IY,nn | IY ← nn | • | • | • | • | • | • | 11 111 101 00 100 001 ← n → ← n → |
4 | 4 | 14 | |
| LD HL,(nn) | H ← (nn+1) L ← (nn) |
• | • | • | • | • | • | 00 101 010 ← n → ← n → |
3 | 5 | 16 | |
| LD dd,(nn) | ddH ← (nn+1) ddL ← (nn) |
• | • | • | • | • | • | 11 101 101 01 dd1 011 ← n → ← n → |
4 | 6 | 20 | |
| LD IX,(nn) | IXH ← (nn+1) IXL ← (nn) |
• | • | • | • | • | • | 11 011 101 00 101 010 ← n → ← n → |
4 | 6 | 20 | |
| LD IY,(nn) | IYH ← (nn+1) IYL ← (nn) |
• | • | • | • | • | • | 11 111 101 00 101 010 ← n → ← n → |
4 | 6 | 20 | |
| LD (nn),HL | (nn+1) ← H (nn) ← L |
• | • | • | • | • | • | 00 100 010 ← n → ← n → |
3 | 5 | 16 | |
| LD (nn),dd | (nn+1) ← ddH (nn) ← ddL |
• | • | • | • | • | • | 11 101 101 01 dd0 011 ← n → ← n → |
4 | 6 | 20 | |
| LD (nn),IX | (nn+1) ← IXH (nn) ← IXL |
• | • | • | • | • | • | 11 011 101 00 100 010 ← n → ← n → |
4 | 6 | 20 | |
| LD (nn),IY | (nn+1) ← IYH (nn) ← IYL |
• | • | • | • | • | • | 11 111 101 00 100 010 ← n → ← n → |
4 | 6 | 20 | |
| LD SP,HL | SP ← HL | • | • | • | • | • | • | 11 111 001 | 1 | 1 | 6 | |
| LD SP,IX | SP ← IX | • | • | • | • | • | • | 11 011 101 11 111 001 |
2 | 2 | 10 | |
| LD SP,IY | SP ← IY | • | • | • | • | • | • | 11 111 101 11 111 001 |
2 | 2 | 10 | |
| PUSH qq | (SP-2) ← qqL (SP-1) ← qqH SP ← SP-2 |
• | • | • | • | • | • | 11 qq0 101 | 1 | 3 | 11 |
qq Pair 00 BC 00 DE 01 HL 01 AF |
| PUSH IX | (SP-2) ← IXL (SP-1) ← IXH SP ← SP-2 |
• | • | • | • | • | • | 11 011 101 11 100 101 |
2 | 4 | 15 | |
| PUSH IY | (SP-2) ← IYL (SP-1) ← IYH SP ← SP-2 |
• | • | • | • | • | • | 11 111 101 11 100 101 |
2 | 4 | 15 | |
| POP qq | qqH ← (SP+1) qqL ← (SP) SP ← SP+2 |
• | • | • | • | • | • | 11 qq0 001 | 1 | 3 | 10 | |
| POP IX |
IXH ← (SP+1) IXL ← (SP) SP ← SP+2 |
• | • | • | • | • | • | 11 011 101 11 100 001 |
2 | 4 | 14 | |
| POP IY |
IYH ← (SP+1) IYL ← (SP) SP ← SP+2 |
• | • | • | • | • | • | 11 111 101 11 100 001 |
2 | 4 | 14 | |
| Notes: | dd is any of the register pairs BC, DE, HL, SP | |
| qq is any of the register pairs AF, BC, DE, HL | ||
| (PAIR)H, (PAIR)L refer to high order and low order eight bits of the register pair respectively. | ||
| E.g. BCL = C, AFH = A | ||
| Flag Notation: | • = flag not affected, 0 = flag reset, 1 = flag set, X = flag is unknown, | |
| ↕ = flag is affected according to the result of the operation. | ||
| 16-byte values: | Where a 16-bit 'nn' value or address is specified: | |
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| the first byte of the pair is the least significant byte. |