VPCLMULQDQ
REG0=YMM_R():w:qq:u128 REG1=YMM_N():r:qq:u64 MEM0:r:qq:u64 IMM0:r:b
x86_64 X86_LEGACY AVX VPCLMULQDQ source: xed
XED_VPCLMULQDQ_YMMu128_YMMu64_MEMu64_IMM8
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 44 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| vex_l | 1 |
| imm_size_bytes | 1 |
| exception_class | avx-type-4 |
| cpl | 3 |
| raw_encoding | VV1 0x44 V66 V0F3A MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() VL256 UIMM8() |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | w | W | EXPLICIT | MODRM_REG | |
| 1 | REG1 | REG | R | EXPLICIT | MODRM_REG | ||
| 2 | MEM0 | MEM | R | EXPLICIT | MODRM_RM | ||
| 3 | IMM0 | IMM | b | R | EXPLICIT | IMM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.