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add finer-grained dma wrapping capabilities

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3450
This commit is contained in:
Sebastian Strohhäcker 2009-07-24 09:56:14 +00:00
parent 76794c051e
commit 669ec92a59
2 changed files with 62 additions and 42 deletions
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6
include/dma.h
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dma.h,v 1.19 2009-05-27 09:15:41 qbix79 Exp $ */
/* $Id: dma.h,v 1.20 2009-07-24 09:56:14 c2woody Exp $ */
#ifndef DOSBOX_DMA_H
#define DOSBOX_DMA_H
@ -35,7 +35,7 @@ class DmaChannel {
public:
Bit32u pagebase;
Bit16u baseaddr;
Bit16u curraddr;
Bit32u curraddr;
Bit16u basecnt;
Bit16u currcnt;
Bit8u channum;
@ -114,4 +114,6 @@ DmaChannel * GetDMAChannel(Bit8u chan);
void CloseSecondDMAController(void);
bool SecondDMAControllerAvailable(void);
static Bit32u dma_wrapping = 0xffff;
#endif