LD (dd), s
Store register into memory via register
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| \((BC) \longleftarrow A\) | ||||||||
| LD (BC), A | ||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 02 |
| \((DE) \longleftarrow A\) | ||||||||
| LD (DE), A | ||||||||
| 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 12 |
| \((HL) \longleftarrow r\) | ||||||||
| LD (HL), r | ||||||||
| 0 | 1 | 1 | 1 | 0 | r | |||
| \(( IX + d ) \longleftarrow r\) | ||||||||
| LD (IX+d), r | ||||||||
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | DD |
| 0 | 1 | 1 | 1 | 0 | r | |||
| d | ||||||||
| \(( IY + d ) \longleftarrow r\) | ||||||||
| LD (IY+d), r | ||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | FD |
| 0 | 1 | 1 | 1 | 0 | r | |||
| d | ||||||||
| Register | r |
|---|---|
| B | 000 |
| C | 001 |
| D | 010 |
| E | 011 |
| H | 100 |
| L | 101 |
| A | 111 |
Flags Affected
| None. |
Opcode Matrix
| A | B | C | D | E | H | L | |
|---|---|---|---|---|---|---|---|
| (HL) |
LD (HL), A
7717 |
LD (HL), B
7017 |
LD (HL), C
7117 |
LD (HL), D
7217 |
LD (HL), E
7317 |
LD (HL), H
7417 |
LD (HL), L
7517 |
| (BC) |
LD (BC), A
0217 |
|
|
|
|
|
|
| (DE) |
LD (DE), A
1217 |
|
|
|
|
|
|
| (IX+d) |
LD (IX+d), A
DD77nn319 |
LD (IX+d), B
DD70nn319 |
LD (IX+d), C
DD71nn319 |
LD (IX+d), D
DD72nn319 |
LD (IX+d), E
DD73nn319 |
LD (IX+d), H
DD74nn319 |
LD (IX+d), L
DD75nn319 |
| (IY+d) |
LD (IY+d), A
FD77nn319 |
LD (IY+d), B
FD70nn319 |
LD (IY+d), C
FD71nn319 |
LD (IY+d), D
FD72nn319 |
LD (IY+d), E
FD73nn319 |
LD (IY+d), H
FD74nn319 |
LD (IY+d), L
FD75nn319 |
|
Instruction
Opcode hexSize bytesCycle count
| Memory |
Last modified November 16, 2021: Update flag rendering so it can be reused for the Z80 (06001ea)