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unmask irq2 on file reads

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2544
This commit is contained in:
Peter Veenstra 2006-03-13 19:58:09 +00:00
parent 59721b003c
commit 2ff5e7f0fb
1 changed files with 7 additions and 2 deletions
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9
src/dos/drive_local.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: drive_local.cpp,v 1.63 2006-02-09 11:47:48 qbix79 Exp $ */
/* $Id: drive_local.cpp,v 1.64 2006-03-13 19:58:09 qbix79 Exp $ */
#include <stdio.h>
#include <stdlib.h>
@ -29,7 +29,7 @@
#include "drives.h"
#include "support.h"
#include "cross.h"
#include "inout.h"
class localFile : public DOS_File {
public:
@ -400,6 +400,11 @@ bool localFile::Read(Bit8u * data,Bit16u * size) {
if (last_action==WRITE) fseek(fhandle,ftell(fhandle),SEEK_SET);
last_action=READ;
*size=fread(data,1,*size,fhandle);
/* Fake harddrive motion. Inspector Gadget with soundblaster compatible */
/* Same for Igor */
/* hardrive motion => unmask irq 2. Only do it when it's masked as unmasking is realitively heavy to emulate */
Bit8u mask = IO_Read(0x21);
if(mask & 0x4 ) IO_Write(0x21,mask&0xfb);
return true;
};