From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Thu, 19 Oct 2023 10:24:13 +0000 (+0100)
Subject: added lwzsx instruction
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=966e18cdb5bf32f4985c4c8008b9ea0c83f58c7a;p=openpower-isa.git

added lwzsx instruction
---

diff --git a/openpower/isa/fixedloadshift.mdwn b/openpower/isa/fixedloadshift.mdwn
index eaa33529..0d43c5c1 100644
--- a/openpower/isa/fixedloadshift.mdwn
+++ b/openpower/isa/fixedloadshift.mdwn
@@ -122,16 +122,16 @@ Special Registers Altered:
 
     None
 
-# Load Word and Zero Indexed
+# Load Word and Zero Shifted Indexed
 
 X-Form
 
-* lwzx RT,RA,RB
+* lwzsx RT,RA,RB,sm
 
 Pseudo-code:
 
     b <- (RA|0)
-    EA <- b + (RB)
+    EA <- b + (RB) << (sm+1)
     RT <- [0] * 32 || MEM(EA, 4)
 
 Special Registers Altered: