From 4f4eefda178416949d38a3b5d6c2d6757dd4db75 Mon Sep 17 00:00:00 2001
From: Sjoerd van der Berg <harekiet@users.sourceforge.net>
Date: Thu, 25 Sep 2003 19:30:23 +0000
Subject: [PATCH] Really clear the lower 4 bits

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1269
---
 src/hardware/dma.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hardware/dma.cpp b/src/hardware/dma.cpp
index d90ef803..7a35d16d 100644
--- a/src/hardware/dma.cpp
+++ b/src/hardware/dma.cpp
@@ -93,7 +93,7 @@ static Bit8u read_dma(Bit32u port) {
 		break;
 	case 0x08:	/* Read Status */
 		ret=cont->status_reg;
-		cont->status_reg&=0xf;	/* Clear lower 4 bits on read */
+		cont->status_reg&=~0xf;	/* Clear lower 4 bits on read */
 		break;
 	case 0x0a:	
 	case 0x0e: