mfpmr

Move From Performance Monitor Register

mfpmr RT, PMRN

Reads a performance monitor register (Embedded).

Encoding

Binary Layout

31

0:5

RT

6:10

PMRN

11:15

334

16:20

/

21:31

 

Format X-form

Opcode 0x7C00029E

Extension Embedded

Operands

• RT
  Target
• PMRN
  Register Num

Example

mfpmr r3, 0

Related

More in Embedded

Reference

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

Description

Moves a value from a performance monitor register identified by PMRN into the general-purpose register RT. 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

RT ← PMR[PMRN]