From 4073d65f4deaf6dcc4111d53f3c351c950bca85e Mon Sep 17 00:00:00 2001
From: Bryce Denney <bryce@tlw.com>
Date: Wed, 19 Sep 2001 17:36:54 +0000
Subject: [PATCH] - apply patch [ #455014 ] CR0 bug in 80486, described as:   >
 In the register CR0, when the bit PM is enabled, the bit 4 is 0   > when
 should be 1.   Another fix from an anonymous donor.

---
 bochs/cpu/proc_ctrl.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bochs/cpu/proc_ctrl.cc b/bochs/cpu/proc_ctrl.cc
index 573ce66a5..b45870492 100644
--- a/bochs/cpu/proc_ctrl.cc
+++ b/bochs/cpu/proc_ctrl.cc
@@ -1081,7 +1081,7 @@ BX_CPU_C::SetCR0(Bit32u val_32)
 #if BX_CPU_LEVEL == 3
   BX_CPU_THIS_PTR cr0.val32 = val_32 | 0x7ffffff0;
 #elif BX_CPU_LEVEL == 4
-  BX_CPU_THIS_PTR cr0.val32 = val_32 & 0xe005002f;
+  BX_CPU_THIS_PTR cr0.val32 = (val_32 | 0x00000010) & 0xe005003f;
 #elif BX_CPU_LEVEL == 5
   BX_CPU_THIS_PTR cr0.val32 = val_32 | 0x00000010;
 #elif BX_CPU_LEVEL == 6