VPERMB
REG0=YMM_R3():w:qq:u8 REG1=MASK1():r:mskw:TXT=ZEROSTR REG2=YMM_N3():r:qq:u8 MEM0:r:qq:u8
x86_64 X86_LEGACY AVX512_VBMI AVX512_VBMI_256 source: xed
XED_VPERMB_YMMu8_MASKmskw_YMMu8_MEMu8_AVX512
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 8D |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| vex_l | 1 |
| attributes | MASKOP_EVEX DISP8_FULLMEM |
| exception_class | AVX512-E4NF |
| cpl | 3 |
| raw_encoding | EVV 0x8D V66 V0F38 MOD[mm] MOD!=3 UBIT=1 REG[rrr] RM[nnn] BCRC=0 MODRM() VL256 W0 ESIZE_8_BITS() NELEM_FULLMEM() |
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 | REG2 | REG | R | EXPLICIT | MODRM_REG | ||
| 3 | MEM0 | MEM | R | EXPLICIT | MODRM_RM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.