Intel Pentium CPU Instruction Set Reference
CMC instruction - Complement Carry Flag
| Code |
Mnemonic |
Description |
| F5 |
CMC |
Complement CF flag |
Description
Complements the CF flag in the EFLAGS register.
| Operands |
Bytes |
Clocks |
| |
1 |
2 |
NP |
Flags
| ID |
unaffected |
DF |
unaffected |
| VIP |
unaffected |
IF |
unaffected |
| VIF |
unaffected |
TF |
unaffected |
| AC |
unaffected |
SF |
unaffected |
| VM |
unaffected |
ZF |
unaffected |
| RF |
unaffected |
AF |
unaffected |
| NT |
unaffected |
PF |
unaffected |
| IOPL |
unaffected |
CF |
contains the complement of its original value |
| OF |
unaffected |
