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up: Chapter 17 -- 80386 Instruction Set
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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


up: Chapter 17 -- 80386 Instruction Set
prev: JMP Jump
next: LAR Load Access Rights Byte