LAHF -- Load Flags into AH Register

LAHF -- Load Flags into AH Register Opcode Instruction Clocks Description 9F LAHF 2 Load: AH = flags SF ZF xx AF xx PF xx CF Operation AH = SF:ZF:xx:AF:xx:PF:xx:CF; Description LAHF transfers the low byte of the flags word to AH. The bits, from MSB to LSB, are sign, zero, indeterminate, auxiliary, carry, indeterminate, parity, indeterminate, and carry. Flags Affected None Protected Mode Exceptions None Real Address Mode Exceptions None Virtual 8086 Mode Exceptions None