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Appendix
ADDC
| Description |
The ADD instruction adds a byte value to the accumulator and stores the results back in the accumulator. Several of the flag registers are affected. |
|
| See Also | ADDC |
| ADD A, #immediate | |||||||
|
| Bytes | 2 | |
| Cycles | 1 | |
| Encoding | 00100100, immediate | |
| Operation |
A = A + immediate |
|
| Example |
ADD A, #03h |
| ADD A, @Rn | |||||||
|
| Bytes | 1 | |
| Cycles | 1 | |
| Encoding | 0010011n | |
| Operation |
A = A + (Rn) |
|
| Example |
ADD A, @R1 |
| ADD A, direct_address | |||||||
|
| Bytes | 2 | |
| Cycles | 1 | |
| Encoding | 00100101, direct_address | |
| Operation |
A = A + (direct_address) |
|
| Example |
ADD A, 20h |
| ADD A, Rn | |||||||
|
| Bytes | 1 | |
| Cycles | 1 | |
| Encoding | 00101nnn | |
| Operation |
A = A + Rn |
|
| Example |
ADD A, R0 |
Add with carry
| Description |
The ADDC instruction adds a byte value and the value of the carry flag to the accumulator. The results of the addition are stored back in the accumulator. Several of the flag registers are affected. |
|
| See Also | ADD |
| ADDC A, #immediate | |||||||
|
| Bytes | 2 | |
| Cycles | 1 | |
| Encoding | 00110100, immediate | |
| Operation |
A = A + C + immediate |
|
| Example |
ADDC A, #23h |
| ADDC A, @Rn | |||||||
|
| Bytes | 1 | |
| Cycles | 1 | |
| Encoding | 0011011n | |
| Operation |
A = A + C + (Rn) |
|
| Example |
ADDC A, @R0 |
| ADDC A, direct_address | |||||||
|
| Bytes | 2 | |
| Cycles | 1 | |
| Encoding | 00110101, direct_address | |
| Operation |
A = A + C + (direct_address) |
|
| Example |
ADDC A, 30h |
| ADDC A, Rn | |||||||
|
| Bytes | 1 | |
| Cycles | 1 | |
| Encoding | 00111nnn | |
| Operation |
A = A + C + Rn |
|
| Example |
ADDC A, R5 |
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