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added support for echoing characters

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@557
This commit is contained in:
Peter Veenstra 2002-12-03 17:27:59 +00:00
parent 84e09e2a65
commit 581774e9bc
3 changed files with 45 additions and 17 deletions
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27
src/dos/dos.cpp
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@ -46,9 +46,11 @@ static Bitu DOS_21Handler(void) {
case 0x01: /* Read character from STDIN, with echo */
{
Bit8u c;Bit16u n=1;
dos.echo=true;
DOS_ReadFile(STDIN,&c,&n);
reg_al=c;
DOS_WriteFile(STDOUT,&c,&n);
dos.echo=false;
}
break;
case 0x02: /* Write character to STDOUT */
@ -452,6 +454,7 @@ static Bitu DOS_21Handler(void) {
case 0x3f: /* READ Read from file or device */
{
Bit16u toread=reg_cx;
dos.echo=true;
if (DOS_ReadFile(reg_bx,dos_copybuf,&toread)) {
MEM_BlockWrite(SegPhys(ds)+reg_dx,dos_copybuf,toread);
reg_ax=toread;
@ -460,6 +463,7 @@ static Bitu DOS_21Handler(void) {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
dos.echo=false;
break;
}
case 0x40: /* WRITE Write to file or device */
@ -806,19 +810,20 @@ static Bitu DOS_21Handler(void) {
CALLBACK_SCF(true);
LOG_WARN("DOS:Windows long file name support call %2X",reg_al);
break;
case 0x68: /* FFLUSH Commit file */
case 0xE0:
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 0x68: /* FFLUSH Commit file */
case 0x63: /* Weirdo double byte stuff (fails but say it succeeded) available only in MSDOS 2.25 */
CALLBACK_SCF(false); //mirek
case 0xE0:
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 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);
LOG_DEBUG("DOS:Unhandled call %02X al=%02X. Set al to default of 0",reg_ah,reg_al);
reg_al=0x00; /* default value */
break;
};