From f278ec8ca85ee5f757081509929ef9ae574ee437 Mon Sep 17 00:00:00 2001
From: Robert Norton
Date: Thu, 4 Feb 2016 17:22:00 +0000
Subject: mips.sail: don't set HI and LO to undefined on MUL but just leave
 them as they were, allowing us to pass another test.

---
 mips/mips.sail | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mips/mips.sail b/mips/mips.sail
index f89e1198..6cfc7e75 100644
--- a/mips/mips.sail
+++ b/mips/mips.sail
@@ -873,9 +873,11 @@ function clause execute (MUL(rs, rt, rd)) =
         undefined
       else
         EXTS(result[31..0]);
-    (* HI and LO are always undefined after MUL *)
+    (* HI and LO are technically undefined after MUL, but this causes problems with tests and 
+       (potentially) context switch so just leave them alone
     HI := undefined;
     LO := undefined;
+    *)
   }
 
 (* MULT 32-bit multiply into HI/LO *)
-- 
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