stwepx

Store Word External Process ID Indexed

stwepx RS, RA, RB

Stores a word using the External PID.

Details

Stores a word (32-bit value) to memory using an address formed by adding RA and RB, performing the store using the External PID for address translation in embedded environments. The least significant word of RS is written to memory. No condition flags are affected.

Pseudocode Operation

EA ← (RA) + (RB)
[EA + 0:3] ← (RS)[32:63]

Example

stwepx r3, r4, r5

Encoding

Binary Layout
31
0
RS
6
RA
11
RB
16
191
21
/
31
 
Format X-form
Opcode 0x7C00017E
Extension Embedded

Operands

  • RS
    Source
  • RA
    Base
  • RB
    Index