From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Tue, 17 Oct 2023 14:04:19 +0000 (+0100)
Subject: added english language description for ldup instruction in  the pifixedload.mdwm
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=61efc6a87a1d2f6ee55342502c48d44175c064a2;p=openpower-isa.git

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

diff --git a/openpower/isa/pifixedload.mdwn b/openpower/isa/pifixedload.mdwn
index 703fa2c6..a1fe93c1 100644
--- a/openpower/isa/pifixedload.mdwn
+++ b/openpower/isa/pifixedload.mdwn
@@ -253,6 +253,15 @@ Pseudo-code:
     RT <- MEM(EA, 8)
     RA <- (RA) + EXTS(DS || 0b00)
 
+Description:
+
+    Let the effective address (EA) be the register RA.
+    The doubleword in storage addressed by EA is loaded into RT.
+
+    The sum (RA)+ (DS||0b00) is placed into register RA.
+
+    If RA=0 or RA=RT, the instruction form is invalid.
+
 Special Registers Altered:
 
     None