Opcode SFENCE
CPU: Pentium III+ (KNI/MMX2), AMD Athlon (AMD EMMX)
Type of instruction: User
Instruction: SFENCE
Description:
Guranteed that every store instruction that precedes in program
order the store fence instruction is globally visible before any
store instruction follows the fence is globally visible.
Physical Form and Timing:
SFENCE ---- 0F AE F8 ---- ?
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