From c0c86e0ffa087ba014cae40eba3fdb793ca81210 Mon Sep 17 00:00:00 2001
From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Tue, 3 Oct 2023 11:02:06 +0100
Subject: [PATCH] Added English Language description for stwu instruction

---
 openpower/isa/fixedstore.mdwn | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/openpower/isa/fixedstore.mdwn b/openpower/isa/fixedstore.mdwn
index d12fcbb5..fba96644 100644
--- a/openpower/isa/fixedstore.mdwn
+++ b/openpower/isa/fixedstore.mdwn
@@ -262,6 +262,16 @@ Pseudo-code:
     MEM(EA, 4) <- (RS)[XLEN-32:XLEN-1]
     RA <- EA
 
+Description:
+
+Let the effective address (EA) be the sum (RA)+ D.
+RS[32:63] are stored into the word in storage addressed
+by EA.
+
+EA is placed into register RA.
+
+If RA=0, the instruction form is invalid.
+
 Special Registers Altered:
 
     None
-- 
2.30.2