nop

No Operation

nop

Does nothing. (Alias for 'ori 0, 0, 0').

Encoding

Binary Layout

24

0:5

0

6:10

0

11:15

0

16:31

 

Format D-form

Opcode 0x60000000

Extension Base

Operands

Related

Across architectures

No Operation : how x86, ARM, RISC-V, and PowerISA each do this.

More in Base

Reference

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

Description

A no-operation instruction that performs no action and modifies no registers or status flags. It is commonly used for instruction alignment, timing, or as a placeholder. This is implemented as an alias for 'ori 0, 0, 0' in the base ISA.

Operation

(no operation)

Programming Note

The nop instruction is useful for optimizing code by reducing unnecessary operations, but it has no effect on program state or execution flow.