XOR
MEM0:rw:b IMM0:r:b
x86_64 X86_LEGACY LOGICAL I86 source: xed
XED_XOR_MEMb_IMMb_80r6
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 80 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /6 | /6 |
| imm_size_bytes | 1 |
| attributes | BYTEOP LOCKABLE |
| cpl | 3 |
| raw_encoding | 0x80 MOD[mm] MOD!=3 REG[0b110] RM[nnn] MODRM() UIMM8() nolock_prefix |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | b | RW | EXPLICIT | MODRM_RM | |
| 1 | IMM0 | IMM | b | R | EXPLICIT | IMM |
Flag effects (6)
CF = SET_0
PF = WRITE
AF = UNDEFINED
ZF = WRITE
SF = WRITE
OF = SET_0
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.