SFENCE

(no syntax)

x86_64 X86_LEGACY MISC SSE source: xed

XED_SFENCE_X86_LEGACY_0F_AE_121772

Encoding

encoding_kindX86_LEGACY
opcode_bytesAE
opcode_map0F
mandatory_prefix-
has_modrmTrue
modrm.reg = /7/7
attributesIGNORES_OSFXSR
cpl3
raw_encoding0x0F 0xAE MOD[0b11] MOD=3 REG[0b111] RM[nnn] no_refining_prefix

Micro-ops sequence (0)

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