From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Tue, 17 Oct 2023 13:44:06 +0000 (+0100)
Subject: added english language description for lwaupx instruction in  the pifixedload.mdwm
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9fc10fb06cb481d7e395581be66234a9fedd26e0;p=openpower-isa.git

added english language description for lwaupx instruction in  the pifixedload.mdwm
---

diff --git a/openpower/isa/pifixedload.mdwn b/openpower/isa/pifixedload.mdwn
index 748b098e..a5cbab80 100644
--- a/openpower/isa/pifixedload.mdwn
+++ b/openpower/isa/pifixedload.mdwn
@@ -228,6 +228,15 @@ Pseudo-code:
     RT <- EXTS(MEM(EA, 4))
     RA <- (RA) + (RB)
 
+Description:
+
+    Let the effective address (EA) be the register RA.
+    The word in storage addressed by EA is loaded into RT[32:63].RT[0:31] are filled with a copy of bit 0 of the loaded word.
+
+    The sum (RA) + (RB) is placed into register RA.
+
+    If RA=0 or RA=RT, the instruction form is invalid.
+
 Special Registers Altered:
 
     None