RL Rotate bits left with Carry
Rotate bits left with carry
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| RLA | ||||||||
| 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 17 |
| RL r | ||||||||
| 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | CB |
| 0 | 0 | 0 | 1 | 0 | r | |||
| RL (HL) | ||||||||
| 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | CB |
| 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 16 |
| RL (IX+d) | ||||||||
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | DD |
| 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | CB |
| d | ||||||||
| 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 16 |
| RL (IY+d) | ||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | FD |
| 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | CB |
| d | ||||||||
| 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 16 |
| Register | r |
|---|---|
| B | 000 |
| C | 001 |
| D | 010 |
| E | 011 |
| H | 100 |
| L | 101 |
| A | 111 |
Flags Affected
| Flags |
| ||||||||
|---|---|---|---|---|---|---|---|---|---|
| s | set if result negative | ||||||||
| z | set if result is 0 | ||||||||
| h | reset | ||||||||
| p/v | set if parity even, reset if parity odd | ||||||||
| c | data from bit 7 of source register |
Opcode Matrix
| A | B | C | D | E | H | L | (HL) | (IX+d) | (IY+d) | |
|---|---|---|---|---|---|---|---|---|---|---|
| RL |
RLA
1714 |
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| RL |
RL A
CB1728 |
RL B
CB1028 |
RL C
CB1128 |
RL D
CB1228 |
RL E
CB1328 |
RL H
CB1428 |
RL L
CB1528 |
RL (HL)
CB16215 |
RL (IX+d)
DDCBnn16423 |
RL (IY+d)
FDCBnn16423 |
|
Instruction
Opcode hexSize bytesCycle count
| Register | Memory |
Last modified November 16, 2021: Add flags to rot operations (2eee171)