STC Set Carry Flag (CF)

Flags affected:

        O D I T S Z A P C  OF: Overflow flag  TF: Trap flag AF: Aux carry
        F F F F F F F F F  DF: Direction flag SF: Sign flag PF: Parity flag
                        *  IF: Interrupt flag ZF: Zero flag CF: Carry flag

Legal forms:

        STC <none>

Examples:

STC

Notes:

STC asserts the Carry flag (CF) to a known set state (1). Use it prior to some task that needs a bit in the Carry flag. It can also be used to put CF into a known state before returning from a procedure, to indicate that the procedure had succeeded or failed, as desired.

        r8 = AL AH BL BH CL CH DL DH        r16 = AX BX CX DX BP SP SI DI
        sr = CS DS SS ES FS GS              r32 = EAX EBX ECX EDX EBP ESP ESI EDI
        m8 = 8-bit memory data              m16 = 16-bit memory data
        m32 = 32-bit memory data            i8 = 8-bit immediate data
        i16 = 16-bit immediate data         i32 = 32-bit immediate data
        d8 = 8-bit signed displacement      d16 = 16-bit signed displacement
        d32 = 32-bit unsigned displacement