From: Dmitry Selyutin <dmitry.selyutin@3mdeb.com>
Date: Mon, 23 Aug 2021 18:56:30 +0000 (+0000)
Subject: fixedarith: switch mulhwu to XLEN
X-Git-Tag: xlen-bcd~82
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8a0112b52e02f893d7948105dd89d37b4fdefd45;p=openpower-isa.git

fixedarith: switch mulhwu to XLEN
---

diff --git a/openpower/isa/fixedarith.mdwn b/openpower/isa/fixedarith.mdwn
index 55cf4042..cf5ba539 100644
--- a/openpower/isa/fixedarith.mdwn
+++ b/openpower/isa/fixedarith.mdwn
@@ -369,9 +369,9 @@ XO-Form
 
 Pseudo-code:
 
-    prod[0:63] <- (RA)[32:63] * (RB)[32:63]
-    RT[32:63] <- prod[0:31]
-    RT[0:31] <- undefined(prod[0:31])
+    prod[0:XLEN-1] <- (RA)[XLEN/2:XLEN-1] * (RB)[XLEN/2:XLEN-1]
+    RT[XLEN/2:XLEN-1] <- prod[0:(XLEN/2)-1]
+    RT[0:(XLEN/2)-1] <- undefined(prod[0:(XLEN/2)-1])
 
 Special Registers Altered: