VPCOMPRESSQ

MEM0:w:zd:u64 REG0=MASK1():r:mskw REG1=ZMM_R3():r:zu64

x86_64 X86_LEGACY COMPRESS AVX512F_512 source: xed

XED_VPCOMPRESSQ_MEMu64_MASKmskw_ZMMu64_AVX512

Encoding

encoding_kindX86_LEGACY
opcode_bytes8B
opcode_mapONEBYTE
mandatory_prefix-
has_modrmTrue
vex_l2
attributesMEMORY_FAULT_SUPPRESSION MASKOP_EVEX DISP8_GSCAT MASK_VARIABLE_MEMOP
exception_classAVX512-E4
cpl3
raw_encodingEVV 0x8B V66 V0F38 MOD[mm] MOD!=3 UBIT=1 REG[rrr] RM[nnn] BCRC=0 MODRM() VL512 W1 NOEVSR ZEROING=0 ESIZE_64_BITS() NELEM_ONE()

Operands (3)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 MEM0 MEM w W EXPLICIT MODRM_RM
1 REG0 REG R EXPLICIT MODRM_REG
2 REG1 REG R EXPLICIT MODRM_REG

Micro-ops sequence (0)

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