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add PCJr-compatible keyboard layer;

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add support for PCJr cartridges


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2402
This commit is contained in:
Sebastian Strohhäcker 2005-12-04 21:17:29 +00:00
parent 6ede5e436f
commit 90d6d74f99
5 changed files with 91 additions and 46 deletions
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12
src/ints/bios.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: bios.cpp,v 1.52 2005-12-02 13:10:18 c2woody Exp $ */
/* $Id: bios.cpp,v 1.53 2005-12-04 21:17:29 c2woody Exp $ */
#include "dosbox.h"
#include "mem.h"
@ -789,6 +789,13 @@ void BIOS_ZeroExtendedSize(bool in) {
if(other_memsystems < 0) other_memsystems=0;
}
#define RAM_REFRESH_DELAY 16.7f
static void RAMRefresh_Event(Bitu val) {
PIC_ActivateIRQ(5);
PIC_AddEvent(RAMRefresh_Event,RAM_REFRESH_DELAY);
}
void BIOS_SetupKeyboard(void);
void BIOS_SetupDisks(void);
@ -964,7 +971,8 @@ public:
IO_Write(0x70,0x30);
size_extended=IO_Read(0x71);
IO_Write(0x70,0x31);
size_extended|=(IO_Read(0x71) << 8);
size_extended|=(IO_Read(0x71) << 8);
if (machine==MCH_PCJR) PIC_AddEvent(RAMRefresh_Event,RAM_REFRESH_DELAY);
}
~BIOS(){
/* abort DAC playing */