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fully implement dos subfunction 0x0c, fix CON GetInformation (Kippesoep; sf patch #1691918, fixes Wing Commander 3 exit dialog)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2840
This commit is contained in:
Sebastian Strohhäcker 2007-04-16 12:23:23 +00:00
parent 17c683f8ad
commit 15ea05cff9
2 changed files with 9 additions and 10 deletions
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4
src/dos/dev_con.h
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dev_con.h,v 1.28 2007-01-11 18:08:54 c2woody Exp $ */
/* $Id: dev_con.h,v 1.29 2007-04-16 12:23:23 c2woody Exp $ */
#include "dos_inc.h"
#include "../ints/int10.h"
@ -370,7 +370,7 @@ Bit16u device_CON::GetInformation(void) {
Bit16u tail=mem_readw(BIOS_KEYBOARD_BUFFER_TAIL);
if ((head==tail) && !readcache) return 0x80D3; /* No Key Available */
if (real_readw(0x40,head)) return 0x8093; /* Key Available */
if (readcache || real_readw(0x40,head)) return 0x8093; /* Key Available */
/* remove the zero from keyboard buffer */
Bit16u start=mem_readw(BIOS_KEYBOARD_BUFFER_START);

15
src/dos/dos.cpp
View file

@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos.cpp,v 1.99 2007-01-13 08:35:49 qbix79 Exp $ */
/* $Id: dos.cpp,v 1.100 2007-04-16 12:23:23 c2woody Exp $ */
#include <stdlib.h>
#include <string.h>
@ -191,14 +191,12 @@ static Bitu DOS_21Handler(void) {
break;
case 0x0c: /* Flush Buffer and read STDIN call */
{
/* flush STDIN-buffer */
Bit8u c;Bit16u n;
while (DOS_GetSTDINStatus()) {
n=1; DOS_ReadFile(STDIN,&c,&n);
}
switch (reg_al) {
case 0x0:
/* flush STDIN-buffer */
Bit8u c;Bit16u n;
while (DOS_GetSTDINStatus()) {
n=1; DOS_ReadFile(STDIN,&c,&n);
}
break;
case 0x1:
case 0x6:
case 0x7:
@ -213,6 +211,7 @@ static Bitu DOS_21Handler(void) {
break;
default:
// LOG_ERROR("DOS:0C:Illegal Flush STDIN Buffer call %d",reg_al);
reg_al=0;
break;
}
}