VPEXPANDQ

REG0=XMM_R3():w:dq:u64 REG1=MASK1():r:mskw:TXT=ZEROSTR MEM0:r:dq:u64

x86_64 X86_LEGACY EXPAND AVX512F_128 source: xed

XED_VPEXPANDQ_XMMu64_MASKmskw_MEMu64_AVX512

Encoding

encoding_kindX86_LEGACY
opcode_bytes89
opcode_mapONEBYTE
mandatory_prefix-
has_modrmTrue
vex_l0
attributesDISP8_GSCAT MASKOP_EVEX MASK_VARIABLE_MEMOP MEMORY_FAULT_SUPPRESSION
exception_classAVX512-E4
cpl3
raw_encodingEVV 0x89 V66 V0F38 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() BCRC=0 UBIT=1 W1 VL128 NOEVSR ESIZE_64_BITS() NELEM_ONE()

Operands (3)

# 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

Micro-ops sequence (0)

No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.