stdi

Store Word with Decoration Indexed

stdi RS, RA, RB

Stores a word and sends decoration sideband signals.

Encoding

Binary Layout

31

0:5

RS

6:10

RA

11:15

RB

16:20

916

21:30

/

31

 

Format X-form

Opcode 0x7C000728

Extension Embedded

Operands

• RS
  Source
• RA
  Base
• RB
  Index

Example

stdi r3, r4, r5

Related

More in Embedded

Reference

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

Description

Stores a 32-bit word from a general-purpose register to memory at an address computed from two other registers and transmits sideband decoration signals. This is an embedded category instruction used in specialized memory systems with no condition register or status updates.

Operation

EA ← RA + RB
[EA][32:63] ← RS
Send decoration signals on memory bus