PAUSE

Pause

PAUSE

Hints that the current hart is in a spin-wait loop, allowing the hardware to reduce power consumption or yield resources.

Details

PAUSE is a hint instruction that may stall the pipeline for an implementation-defined short period. It is intended to reduce energy consumption in spin-wait loops.

Pseudocode Operation

// Implementation-defined delay/yield

Example

PAUSE

Encoding

Binary Layout
000000010000
31:20
00000
19:15
000
14:12
00000
11:7
0001111
6:0
 
Format I-Type (Hint)
Opcode 0x0F
Extension Zihintpause

Operands