Intel 253666-024US - Manual (Page 152)

3-106 Vol. 2A CLC—Clear Carry Flag
INSTRUCTION SET REFERENCE, A-M
CLC—Clear Carry Flag
Description
Clears the CF flag in the EFLAGS register. Operation is the same in all non-64-bit
modes and 64-bit mode.
Operation
CF ← 0;
Flags Affected
The CF flag is set to 0. The OF, ZF, SF, AF, and PF flags are unaffected.
Exceptions (All Operating Modes)
#UD If the LOCK prefix is used.
Opcode Instruction 64-Bit
Mode
Compat/
Leg Mode
Description
F8 CLC Valid Valid Clear CF flag.