LAHF
REG0=XED_REG_AH:w:SUPP
x86_64 X86_LEGACY FLAGOP LAHF source: xed
XED_LAHF_X86_LEGACY_ONEBYTE_9F_868003
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 9F |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| cpl | 3 |
| raw_encoding | 0x9F |
Operands (1)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | (=AH) | w | W | SUPPRESSED | MODRM_REG |
Flag effects (5)
CF = READ
PF = READ
AF = READ
ZF = READ
SF = READ
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.