CRC32
r32, r16/m16
x86_64 X86_LEGACY APX SSE4_2 source: asmjit
X86_CRC32_X86_LEGACY_0F38_F1_908581
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | F1 |
| opcode_map | 0F38 |
| mandatory_prefix | F2 |
| has_modrm | True |
| raw_encoding | [RM] 66 F2 0F 38 F1 /r |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | GR32 | d | RW | EXPLICIT | MODRM_REG |
| 1 | OP1 | REG | R | EXPLICIT |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.