NOP
MEM0:r:v
x86_64 X86_LEGACY WIDENOP FAT_NOP source: xed
XED_NOP_MEMv_0F18r7
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 18 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /7 | /7 |
| attributes | NOP |
| cpl | 3 |
| raw_encoding | 0x0F 0x18 MOD[mm] MOD!=3 REG[0b111] RM[nnn] MODRM() PREFETCHIT=0 |
Operands (1)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | v | R | EXPLICIT | MODRM_RM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.