From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 27 Oct 2023 10:38:09 +0000 (+0100)
Subject: pifploadshift.mdwn, do one example english pseudocode operands
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5454b1260a732e633bb06fb074d4350780420e46;p=openpower-isa.git

pifploadshift.mdwn, do one example english pseudocode operands
---

diff --git a/openpower/isa/pifploadshift.mdwn b/openpower/isa/pifploadshift.mdwn
index 281ec280..7dcc3dd2 100644
--- a/openpower/isa/pifploadshift.mdwn
+++ b/openpower/isa/pifploadshift.mdwn
@@ -6,17 +6,18 @@
 
 X-Form
 
-* lfsupx FRT,RA,RB
+* lfsupx FRT,RA,RB,SH
 
 Pseudo-code:
 
-    EA <- (RA) + (RB)
+    EA <- (RA) + (RB)<<(SH+1)
     FRT <- DOUBLE(MEM(RA, 4))
     RA <- EA
 
 Description:
 
-    Let the effective address (EA) be the sum (RA)+(RB).
+    Let the effective address (EA) be the sum of the contents of
+    register RB shifted by (SH+1), and the contents of register RA.
 
     The word in storage addressed by EA is interpreted as
     a floating-point single-precision operand. This word is