From: Dmitry Selyutin <dmitry.selyutin@3mdeb.com>
Date: Mon, 23 Aug 2021 18:51:30 +0000 (+0000)
Subject: fixedarith: switch mulhw to XLEN
X-Git-Tag: xlen-bcd~86
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dde48d775990659ed913e3f1bde0a044cec580f1;p=openpower-isa.git

fixedarith: switch mulhw to XLEN
---

diff --git a/openpower/isa/fixedarith.mdwn b/openpower/isa/fixedarith.mdwn
index bff81b42..3009b826 100644
--- a/openpower/isa/fixedarith.mdwn
+++ b/openpower/isa/fixedarith.mdwn
@@ -331,9 +331,9 @@ XO-Form
 
 Pseudo-code:
 
-    prod[0:63] <- MULS((RA)[32:63], (RB)[32:63])
-    RT[32:63] <- prod[0:31]
-    RT[0:31] <- undefined(prod[0:31])
+    prod[0:XLEN-1] <- MULS((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: