dss

Data Stream Stop

dss STRM

Stops a data stream prefetch operation.

Encoding

Binary Layout

31

0:5

STRM

6:10

0

11:15

0

16:20

822

21:30

/

31

 

Format X-form

Opcode 0x7C000666

Extension Base

Operands

• STRM
  Stream ID

Example

dss 0

Related

More in Base

Reference

View in PowerISA v3.1C Specification ↗ OPF Power ISA v3.1C

Description

Stops the hardware prefetch stream identified by STRM. This instruction terminates data stream prefetching for a specific stream, allowing the hardware to cease streaming operations and free associated resources. It is an advisory instruction with no architectural side effects if data streaming is not supported.

Operation

StopDataStream(STRM)