STC             Set Carry Flag                       Flags: O D I T S Z A P C
                                                            - - - - - - - - 1
STC

        Logic   CF ← 1

    STC sets the carry flag (CF).


    Opcode      Format
    F9          STC


    Length and timing
    Operands    Bytes   8088    186     286     386     486     Pentium
    -            1       2       2       2       2       2       2   NP