GF2P8AFFINEQB

REG0=XMM_R():rw:dq:u8 REG1=XMM_B():r:dq:u64 IMM0:r:b

x86_64 X86_LEGACY GFNI GFNI source: xed

XED_GF2P8AFFINEQB_XMMu8_XMMu64_IMM8

Encoding

encoding_kindX86_LEGACY
opcode_bytesCE
opcode_map0F3A
mandatory_prefix-
has_modrmTrue
imm_size_bytes1
exception_classSSE_TYPE_4
cpl3
raw_encoding0x0F 0x3A 0xCE MOD[0b11] MOD=3 REG[rrr] RM[nnn] osz_refining_prefix UIMM8()

Operands (3)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 REG0 REG RW 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.