dstt

Data Stream Touch Transient

dstt RA, RB, STRM

Initiates a transient (non-temporal) data stream prefetch.

Details

The Data Stream Touch Transient instruction initiates a transient (non-temporal) data stream prefetch.

Pseudocode Operation

// Data stream prefetch hint to hardware prefetcher

Example

dstt r4, r5, 0

Encoding

Binary Layout
31
0
STRM
6
RA
11
RB
16
342
21
/
31
 
Format X-form
Opcode 0x7C0002A6
Extension Base

Operands

  • RA
    Base
  • RB
    Index
  • STRM
    Stream ID