From 7e363e14f7f348d8b10fa020e572867659f7e6c6 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sat, 10 Mar 2007 19:29:31 -0500
Subject: [PATCH] Fix bounds check for the cwp

--HG--
extra : convert_revision : 097e6b0c80d71417329b2a4cd118046aa5ed777a
---
 src/arch/sparc/miscregfile.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/arch/sparc/miscregfile.cc b/src/arch/sparc/miscregfile.cc
index 20bc4ae5d..ac30afde9 100644
--- a/src/arch/sparc/miscregfile.cc
+++ b/src/arch/sparc/miscregfile.cc
@@ -654,7 +654,12 @@ void MiscRegFile::setReg(int miscReg,
 #endif
         return;
       case MISCREG_CWP:
-        new_val = val > NWindows ? NWindows - 1 : val;
+        new_val = val >= NWindows ? NWindows - 1 : val;
+        if (val >= NWindows) {
+            new_val = NWindows - 1;
+            warn("Attempted to set the CWP to %d with NWindows = %d\n",
+                    val, NWindows);
+        }
         tc->changeRegFileContext(CONTEXT_CWP, new_val);
         break;
       case MISCREG_GL:
-- 
2.30.2