KSHIFTRW

REG0=MASK_R():w:mskw REG1=MASK_B():r:mskw IMM0:r:b

x86_64 X86_LEGACY KMASK AVX512F_KOPW source: xed

XED_KSHIFTRW_MASKmskw_MASKmskw_IMM8_AVX512

Encoding

encoding_kindX86_LEGACY
opcode_bytes30
opcode_mapONEBYTE
mandatory_prefix-
has_modrmTrue
vex_l0
imm_size_bytes1
attributesKMASK
exception_classAVX512-K20
cpl3
raw_encodingVV1 0x30 V66 V0F3A MOD[0b11] MOD=3 REG[rrr] RM[nnn] VL128 W1 NOVSR UIMM8()

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 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.