From 0bdf6ee415079d8b9941ff8468dd864c77baef3f Mon Sep 17 00:00:00 2001
From: Jacob Lifshay <programmerjake@gmail.com>
Date: Thu, 21 Apr 2022 19:05:13 -0700
Subject: [PATCH] fix bug

---
 openpower/sv/biginteger/mulmnu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/openpower/sv/biginteger/mulmnu.c b/openpower/sv/biginteger/mulmnu.c
index 4c6bb8617..0326a154d 100644
--- a/openpower/sv/biginteger/mulmnu.c
+++ b/openpower/sv/biginteger/mulmnu.c
@@ -30,13 +30,13 @@ void mulmnu(unsigned short w[], unsigned short u[], unsigned short v[], int m,
         unsigned short plo[2000];
         for (i = 0; i < m; i++)
         {
-            unsigned product = u[i] * v[j] + w[i + j];
+            unsigned product = (unsigned)u[i] * v[j] + w[i + j];
             phi[i] = product >> 16;
             plo[i] = product;
         }
         for (i = 0; i < m; i++)
         {
-            t = (phi[i] << 16) | plo[i] + k;
+            t = (((unsigned)phi[i] << 16) | plo[i]) + k;
             w[i + j] = t; // (I.e., t & 0xFFFF).
             k = t >> 16;
         }
-- 
2.30.2