mfence

Memory Fence

MFENCE

Serializes all load and store operations.

Details

The Memory Fence instruction serializes all load and store operations.

Pseudocode Operation

// Serializes all load and store operations

Example

MFENCE

Encoding

Binary Layout
0F
+0
AE
+1
F0
+2
 
Format SSE2
Opcode 0F AE F0
Extension SSE2

Operands