prefetchw

Prefetch Data into Caches in Anticipation of a Write

PREFETCHW m8

Prefetches data with intent to write (RFO).

Details

The Prefetch Data into Caches in Anticipation of a Write instruction prefetches data with intent to write (RFO).

Pseudocode Operation

// Prefetches data with intent to write (RFO)

Example

PREFETCHW [rbp-1]

Encoding

Binary Layout
0F
+0
0D
+1
ModRM
+2
 
Format Legacy
Opcode 0F 0D /1
Extension PREFETCHW

Operands

  • dest
    8-bit memory operand