mtpmr

Move To Performance Monitor Register

mtpmr PMRN, RS

Writes a performance monitor register (Embedded).

Encoding

Binary Layout

31

0:5

RS

6:10

PMRN

11:15

462

16:20

/

21:31

 

Format X-form

Opcode 0x7C00039E

Extension Embedded

Operands

• PMRN
  Register Num
• RS
  Source

Example

mtpmr 0, r3

Related

More in Embedded

Reference

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

Description

Moves a value from the general-purpose register RS into the performance monitor register identified by PMRN. This instruction is available only in embedded Power ISA implementations with performance monitoring support and typically requires supervisor privilege. No condition flags are affected.

Operation

PMR[PMRN] ← RS