From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Thu, 19 Oct 2023 10:54:12 +0000 (+0100)
Subject: added sthbrsx instruction
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=966972ef3b6e28584b3605e501b405a82ca9db50;p=openpower-isa.git

added sthbrsx instruction
---

diff --git a/openpower/isa/fixedstoreshift.mdwn b/openpower/isa/fixedstoreshift.mdwn
index 44349e9a..37e74887 100644
--- a/openpower/isa/fixedstoreshift.mdwn
+++ b/openpower/isa/fixedstoreshift.mdwn
@@ -213,16 +213,16 @@ Special Registers Altered:
 
 <!-- Section 3.3.5 Fixed-Point Load and Store with Byte Reversal Instructions page 60 -->
 
-# Store Halfword Byte-Reverse Indexed
+# Store Halfword Byte-Reverse Shifted Indexed
 
 X-Form
 
-* sthbrx RS,RA,RB
+* sthbrsx RS,RA,RB,SH
 
 Pseudo-code:
 
     b <- (RA|0)
-    EA <- b + (RB)
+    EA <- b + (RB) << (SH+1)
     MEM(EA, 2) <- (RS) [56:63] || (RS)[48:55]
 
 Description: