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added more debug information and check if drive exists

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@130
This commit is contained in:
Peter Veenstra 2002-08-09 11:19:07 +00:00
parent 7109c7df98
commit c1488b6983
2 changed files with 7 additions and 7 deletions
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12
src/dos/dos.cpp
View file

@ -169,7 +169,7 @@ static Bitu DOS_21Handler(void) {
}else{
reg_al=0xff;
}
LOG_DEBUG("DOS:0x0f FCB-fileopen used");
LOG_DEBUG("DOS:0x0f FCB-fileopen used, result:al=%d",reg_al);
break;
case 0x10: /* Close File using FCB */
@ -178,7 +178,7 @@ static Bitu DOS_21Handler(void) {
}else{
reg_al=0xff;
}
LOG_DEBUG("DOS:0x10 FCB-fileclose used");
LOG_DEBUG("DOS:0x10 FCB-fileclose used, result:al=%d",reg_al);
break;
case 0x11: /* Find First Matching File using FCB */
@ -187,7 +187,7 @@ static Bitu DOS_21Handler(void) {
}else{
reg_al=0xff;
}
LOG_DEBUG("DOS:0x11 FCB-FindFirst used");
LOG_DEBUG("DOS:0x11 FCB-FindFirst used, result:al=%d",reg_al);
break;
case 0x12: /* Find Next Matching File using FCB */
@ -196,7 +196,7 @@ static Bitu DOS_21Handler(void) {
}else{
reg_al=0xff;
}
LOG_DEBUG("DOS:0x12 FCB-FindNext used");
LOG_DEBUG("DOS:0x12 FCB-FindNext used, result:al=%d",reg_al);
break;
case 0x13: /* Delete File using FCB */
@ -222,7 +222,7 @@ static Bitu DOS_21Handler(void) {
reg_al=FCB_Parsename(Segs[es].value,reg_di,reg_al ,string, &difference);
reg_di+=difference;
}
LOG_DEBUG("DOS:29:FCB Parse Filename result:%d",reg_al);
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 */
@ -237,9 +237,9 @@ static Bitu DOS_21Handler(void) {
reg_al=DOS_GetDefaultDrive();
break;
case 0x1a: /* Set Disk Transfer Area Address */
//TODO find out what a DTA does
dos.dta=RealMake(Segs[ds].value,reg_dx);
break;
case 0x1c: /* Get allocation info for specific drive */
LOG_DEBUG("DOS: Allocation Info call not supported correctly");
SetSegment_16(ds,0xf000);

2
src/dos/dos_files.cpp
View file

@ -513,7 +513,7 @@ Bit8u FCB_Parsename(Bit16u seg,Bit16u offset,Bit8u parser ,char *string, Bit8u *
while((*string==' ')||(*string=='\t')) string++;
if( *(string+1)==':') {
Bit8u drive=toupper(*string);
if( (drive>'Z') | (drive<'A') ) {
if( (drive>'Z') | (drive<'A') | (Drives[drive-'A']==NULL)) {
*change=string-backup;
return 0xFF;
}