lwzepx

Load Word and Zero External Process ID Indexed

lwzepx RT, RA, RB

Loads a word using the External PID.

Encoding

Binary Layout

31

0:5

RT

6:10

RA

11:15

RB

16:20

63

21:30

/

31

 

Format X-form

Opcode 0x7C00007E

Extension Embedded

Operands

• RT
  Target
• RA
  Base
• RB
  Index

Example

lwzepx r3, r4, r5

Related

More in Embedded

Reference

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

Description

Loads a word (32-bit value) from memory using an address formed by adding RA and RB, performing the load using the External PID for address translation in embedded environments. The loaded word is zero-extended and placed into RT. No condition flags are affected.

Operation

EA ← (RA) + (RB)
RT ← (32 bits are 0) || ([EA + 0:3])