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80386 Programmer's Reference Manual -- Opcode CMC

CMC -- Complement Carry Flag

OpcodeInstructionClocks DescriptionExample
F5cmc 2 Complement carry flagcmc

Operation




CF := NOT CF;

Description

CMC reverses the setting of the carry flag. No other flags are affected.

Flags Affected

CF as described above

Protected Mode Exceptions

None

Real Address Mode Exceptions

None

Virtual 8086 Mode Exceptions

None

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