LD dd, nn
Load 16-bit number
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| \(dd \longleftarrow nn\) | ||||||||
| LD dd, nn | ||||||||
| 0 | 0 | dd | 0 | 0 | 0 | 1 | ||
| 7 | nn | 0 | ||||||
| 15 | 8 | |||||||
| \(IX \longleftarrow nn\) | ||||||||
| LD IX, nn | ||||||||
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | DD |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 21 |
| 7 | nn | 0 | ||||||
| 15 | 8 | |||||||
| \(IY \longleftarrow nn\) | ||||||||
| LD IY, nn | ||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | FD |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 21 |
| 7 | nn | 0 | ||||||
| 15 | 8 | |||||||
| Value | dd |
|---|---|
| 00 | BC |
| 01 | DE |
| 10 | HL |
| 11 | SP |
Flags Affected
| None. |
Opcode Matrix
| BC | DE | HL | IX | IY | SP | |
|---|---|---|---|---|---|---|
| nn |
LD BC, nn
01nnnn310 |
LD DE, nn
11nnnn310 |
LD HL, nn
21nnnn310 |
LD IX, nn
DD21nnnn414 |
LD IY, nn
FD21nnnn414 |
LD SP, nn
31nnnn310 |
|
Instruction
Opcode hexSize bytesCycle count
| Implicit |
Last modified November 16, 2021: Update flag rendering so it can be reused for the Z80 (06001ea)