DEC
DEC - Decrement
Unsigned binary subtraction of one from the destination.
Usage:
DEC dest ;
Modifies flags:
AF OF PF SF ZF
| Clocks | Size | |||||
|---|---|---|---|---|---|---|
| Operands | 808x | 286 | 386 | 486 | Bytes | |
| reg8 | 3 | 2 | 2 | 1 | 2 | |
| mem | 15+EA | 7 | 6 | 3 | 2-4 | |
| reg16/32 | 3 | 2 | 2 | 1 | 1 | |
- back2root/ibm-pc-ms-dos/instr/dec.txt
- Dernière modification : 2023/03/03 23:53
- de 127.0.0.1