clwb

Cache Line Write Back

CLWB m8

Writes back modified cache line without flushing (Persistent Memory).

Details

The Cache Line Write Back instruction writes back modified cache line without flushing (Persistent Memory).

Pseudocode Operation

// Writes back modified cache line without flushing (Persistent Memory)

Example

CLWB [rbp-1]

Encoding

Binary Layout
66
+0
0F
+1
AE
+2
ModRM
+3
 
Format Legacy
Opcode 66 0F AE /6
Extension CLWB

Operands

  • dest
    8-bit memory operand