From cd86e748b8e62a4be2aa52522af58011226e65ea Mon Sep 17 00:00:00 2001
From: Dmitry Gorbachev <gorbachev@reactos.org>
Date: Mon, 16 Apr 2007 23:02:54 +0000
Subject: [PATCH] Do not change reserved ELCR bits.

svn path=/trunk/; revision=26365
---
 reactos/hal/halx86/generic/irq.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/reactos/hal/halx86/generic/irq.S b/reactos/hal/halx86/generic/irq.S
index 9a00a96008c..15598822fef 100644
--- a/reactos/hal/halx86/generic/irq.S
+++ b/reactos/hal/halx86/generic/irq.S
@@ -254,6 +254,7 @@ _HalEnableSystemInterrupt@12:
     in al, dx
     mov dx, 1
     shl dx, cl
+    and dx, 0xDEF8
 
     /* Check if this is a latched interrupt */
     cmp dword ptr [esp+12], 0