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Add fast irq for it came from the desert.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2636
This commit is contained in:
Peter Veenstra 2006-05-23 10:30:29 +00:00
parent 796af47e74
commit e065bf63d2
1 changed files with 5 additions and 1 deletions
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6
src/hardware/mpu401.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: mpu401.cpp,v 1.20 2006-03-19 10:24:59 qbix79 Exp $ */
/* $Id: mpu401.cpp,v 1.21 2006-05-23 10:30:29 qbix79 Exp $ */
#include <string.h>
#include "dosbox.h"
@ -238,6 +238,10 @@ static void MPU401_WriteCommand(Bitu port,Bitu val,Bitu iolen) {
case 0xff: /* Reset MPU-401 */
LOG(LOG_MISC,LOG_NORMAL)("MPU-401:Reset %X",val);
mpu.state.reset=1;
if (CPU_Cycles > 5) { //It came from the desert wants a fast irq
CPU_CycleLeft += CPU_Cycles;
CPU_Cycles = 5;
}
MPU401_Reset();
break;
case 0x3f: /* UART mode */