valter/dosbox-staging
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added support for int 21 ax=4406 bx=0000

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grouped non-working functions
updated int 21 ah=2c to be able to display 95 hunderd as well


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@498
This commit is contained in:
Peter Veenstra 2002-11-13 20:48:54 +00:00
parent ef0654b332
commit 6a3fa5949f
2 changed files with 22 additions and 21 deletions
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36
src/dos/dos.cpp
View file

@ -92,7 +92,7 @@ static Bitu DOS_21Handler(void) {
reg_al=c;
break;
};
case 0x08: /* Direct Character Input, without echo */
case 0x08: /* Direct Character Input, without echo (checks for breaks officially :)*/
{
Bit8u c;Bit16u n=1;
DOS_ReadFile (STDIN,&c,&n);
@ -251,14 +251,6 @@ static Bitu DOS_21Handler(void) {
}
LOG_DEBUG("DOS:29:FCB Parse Filename, result:al=%d",reg_al);
break;
case 0x18: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x1d: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x1e: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x20: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x6b: /* NULL Function */
case 0x61: /* UNUSED */
reg_al=0;
break;
case 0x19: /* Get current default drive */
reg_al=DOS_GetDefaultDrive();
break;
@ -281,7 +273,7 @@ static Bitu DOS_21Handler(void) {
break;
case 0x2a: /* Get System Date */
{
CALLBACK_Idle();
CALLBACK_Idle(); /* sure ? */
int a = (14 - dos.date.month)/12;
int y = dos.date.year - a;
int m = dos.date.month + 12*a - 2;
@ -309,7 +301,7 @@ static Bitu DOS_21Handler(void) {
reg_ch=(Bit8u)(seconds/3600);
reg_cl=(Bit8u)((seconds % 3600)/60);
reg_dh=(Bit8u)(seconds % 60);
reg_dl=(Bit8u)((ticks % 19)*5);
reg_dl=(Bit8u)((ticks % 20)*5); /* 0-19 ->0-95 */
}
break;
case 0x2d: /* Set System Time */
@ -603,7 +595,7 @@ static Bitu DOS_21Handler(void) {
break;
//TODO Check for use of execution state AL=5
case 0x00:
reg_ax=0x4c00; /* Terminate Program */
reg_ax=0x4c00; /* Terminate Program */
case 0x4c: /* EXIT Terminate with return code */
{
@ -735,9 +727,7 @@ static Bitu DOS_21Handler(void) {
}
break;
}
case 0x5d: /* Network Functions */
LOG_WARN("DOS:5D:Unhandled call %X",reg_al);
break;
case 0x5c: /* FLOCK File region locking */
case 0x5e: /* More Network Functions */
case 0x5f: /* And Even More Network Functions */
@ -756,10 +746,6 @@ static Bitu DOS_21Handler(void) {
case 0x62: /* Get Current PSP Address */
reg_bx=dos.psp;
break;
case 0x63: /* Weirdo double byte stuff */
reg_al=0xff;
LOG_WARN("DOS:0x63:Doubly byte characters not supported");
break;
case 0x64: /* Set device driver lookahead flag */
E_Exit("Unhandled Dos 21 call %02X",reg_ah);
break;
@ -822,10 +808,18 @@ static Bitu DOS_21Handler(void) {
LOG_WARN("DOS:Windows long file name support call %2X",reg_al);
break;
case 0xE0:
case 0xEF:
case 0x18: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x1d: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x1e: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x20: /* NULL Function for CP/M compatibility or Extended rename FCB */
case 0x6b: /* NULL Function */
case 0x61: /* UNUSED */
case 0x63: /* Weirdo double byte stuff (fails but say it succeeded) */
case 0xEF: /* Used in Ancient Art Of War CGA */
case 0x5d: /* Network Functions */
default:
LOG_DEBUG("DOS:Unhandled call %02X al=%02X. Set al to default of 0 no carry",reg_ah,reg_al);
reg_al=0x00; /* default value */
LOG_DEBUG("DOS:Unhandled call %02X. Set al to default of 0 no carry",reg_ah);
break;
};
return CBRET_NONE;

7
src/dos/dos_ioctl.cpp
View file

@ -86,6 +86,13 @@ bool DOS_IOCTL(void) {
return false;
}
break;
case 0x06: /* Get Input Status */
if(reg_bx==0x00) { /* might work for other handles, but tested it only for STDIN */
if(Files[handle]->GetInformation() & 0x40) reg_al=0x00; else
reg_al=0xFF;
return true;
break;
}
default:
LOG_ERROR("DOS:IOCTL Call %2X unhandled",reg_al);
return false;