ADC 16 bit add with Carry
Addition with carry
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| \(HL \longleftarrow HL + ss + Carry\) | ||||||||
| ADC HL, dd | ||||||||
| 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | ED |
| 0 | 1 | dd | 1 | 0 | 1 | 0 | ||
| Value | dd |
|---|---|
| 00 | BC |
| 01 | DE |
| 10 | HL |
| 11 | SP |
Flags Affected
| Flags |
| ||||||||
|---|---|---|---|---|---|---|---|---|---|
| s | set if result negative | ||||||||
| z | set if result is 0 | ||||||||
| h | set if carry from bit 11 | ||||||||
| p/v | set if overflow | ||||||||
| c | set if carry from bit 15 |
Opcode Matrix
| BC | DE | HL | SP | |
|---|---|---|---|---|
| HL |
ADC HL,BC
ED4A215 |
ADC HL,DE
ED5A215 |
ADC HL,HL
ED6A215 |
ADC HL,SP
ED7A215 |
|
Instruction
Opcode hexSize bytesCycle count
| Register |
Last modified November 16, 2021: Split adc (e70f507)