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Fix adlib timer overflow to be reset when timer is masked

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3335
This commit is contained in:
Sjoerd van der Berg 2009-03-31 18:15:10 +00:00
parent d8c2179a83
commit 03f524f5a3
1 changed files with 7 additions and 2 deletions
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9
src/hardware/adlib.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: adlib.cpp,v 1.32 2009-02-03 19:20:30 harekiet Exp $ */
/* $Id: adlib.cpp,v 1.33 2009-03-31 18:15:10 harekiet Exp $ */
#include <stdlib.h>
#include <string.h>
@ -416,12 +416,17 @@ bool Chip::Write( Bit32u reg, Bit8u val ) {
timer[0].Stop( );
}
timer[0].masked = (val & 0x40) > 0;
if ( timer[0].masked )
timer[0].overflow = false;
if ( val & 0x2 ) {
timer[1].Start( time, 320 );
} else {
timer[1].Stop( );
}
timer[1].masked = (val & 0x20) > 0;
if ( timer[1].masked )
timer[1].overflow = false;
}
return true;
}
@ -474,7 +479,7 @@ void Module::DualWrite( Bit8u index, Bit8u reg, Bit8u val ) {
val &= 7;
val |= index ? 0xA0 : 0x50;
}
Bit32u fullReg = reg + index ? 0x100 : 0;
Bit32u fullReg = reg + (index ? 0x100 : 0);
handler->WriteReg( fullReg, val );
CacheWrite( fullReg, val );
}