msgslp

Message Sleep

msgslp RB

Transitions the processor to a sleep state via message.

Encoding

Binary Layout

31

0:5

/

6:10

/

11:15

RB

16:20

118

21:30

/

31

 

Format X-form

Opcode 0x7C0000EC

Extension Privileged

Operands

• RB
  Msg

Example

msgslp r5

Related

More in Privileged

Reference

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

Description

Transitions the processor to a sleep state via a message-based mechanism. The message content is provided in register RB. This is a privileged instruction that may put the processor into a low-power state pending an interrupt.

Operation

message ← RB
enter_sleep_state(message)