void UnMount(int i_drive) {
if (dos_kernel_disabled)
return;
i_drive = toupper(i_drive);
if(i_drive-'A' == DOS_GetDefaultDrive()) {
DOS_MCB mcb(dos.psp()-1);
static char name[9];
mcb.GetFileName(name);
if (!strlen(name)) goto umount;
LOG_MSG("GUI:Drive %c is being used. Aborted.",i_drive);
return;
};
umount:
if (i_drive-'A' < DOS_DRIVES && i_drive-'A' >= 0 && Drives[i_drive-'A']) {
switch (DriveManager::UnmountDrive(i_drive-'A')) {
case 0:
Drives[i_drive-'A'] = 0;
if(i_drive-'A' == DOS_GetDefaultDrive())
DOS_SetDrive(toupper('Z') - 'A');
LOG_MSG("GUI:Drive %c has succesfully been removed.",i_drive); break;
case 1:
LOG_MSG("GUI:Virtual Drives can not be unMOUNTed."); break;
case 2:
LOG_MSG(MSCDEX_Output(1).c_str()); break;
}
}
}
void DOS_Shell::ShowPrompt(void) {
Bit8u drive=DOS_GetDefaultDrive()+'A';
char dir[DOS_PATHLENGTH];
dir[0] = 0; //DOS_GetCurrentDir doesn't always return something. (if drive is messed up)
DOS_GetCurrentDir(0,dir);
WriteOut("%c:\\%s>",drive,dir);
}
bool DOS_GetFreeDiskSpace(Bit8u drive,Bit16u * bytes,Bit8u * sectors,Bit16u * clusters,Bit16u * free) {
if (drive==0) drive=DOS_GetDefaultDrive();
else drive--;
if ((drive>=DOS_DRIVES) || (!Drives[drive])) {
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
return Drives[drive]->AllocationInfo(bytes,sectors,clusters,free);
}
void DOS_Shell::CMD_CHDIR(char * args) {
HELP("CHDIR");
StripSpaces(args);
char sargs[CROSS_LEN];
if (*args && !DOS_GetSFNPath(args,sargs,false)) {
WriteOut(MSG_Get("SHELL_ILLEGAL_PATH"));
return;
}
Bit8u drive = DOS_GetDefaultDrive()+'A';
char dir[DOS_PATHLENGTH];
if (!*args) {
DOS_GetCurrentDir(0,dir,true);
WriteOut("%c:\\%s\n",drive,dir);
} else if(strlen(args) == 2 && args[1]==':') {
Bit8u targetdrive = (args[0] | 0x20)-'a' + 1;
unsigned char targetdisplay = *reinterpret_cast<unsigned char*>(&args[0]);
if(!DOS_GetCurrentDir(targetdrive,dir,true)) {
if(drive == 'Z') {
WriteOut(MSG_Get("SHELL_EXECUTE_DRIVE_NOT_FOUND"),toupper(targetdisplay));
} else {
WriteOut(MSG_Get("SHELL_ILLEGAL_PATH"));
}
return;
}
WriteOut("%c:\\%s\n",toupper(targetdisplay),dir);
if(drive == 'Z')
WriteOut(MSG_Get("SHELL_CMD_CHDIR_HINT"),toupper(targetdisplay));
} else if (!DOS_ChangeDir(sargs)) {
/* Changedir failed. Check if the filename is longer then 8 and/or contains spaces */
std::string temps(args),slashpart;
std::string::size_type separator = temps.find_first_of("\\/");
if(!separator) {
slashpart = temps.substr(0,1);
temps.erase(0,1);
}
separator = temps.find_first_of("\\/");
if(separator != std::string::npos) temps.erase(separator);
separator = temps.find_first_of("\"");
if(separator != std::string::npos) temps.erase(separator);
separator = temps.rfind('.');
if(separator != std::string::npos) temps.erase(separator);
separator = temps.find(' ');
if(separator != std::string::npos) {/* Contains spaces */
temps.erase(separator);
if(temps.size() >6) temps.erase(6);
temps += "~1";
WriteOut(MSG_Get("SHELL_CMD_CHDIR_HINT_2"),temps.insert(0,slashpart).c_str());
} else {
if (drive == 'Z') {
WriteOut(MSG_Get("SHELL_CMD_CHDIR_HINT_3"));
} else {
WriteOut(MSG_Get("SHELL_CMD_CHDIR_ERROR"),args);
}
}
}
}
bool DOS_GetCurrentDir(Bit8u drive,char * const buffer) {
if (drive==0) drive=DOS_GetDefaultDrive();
else drive--;
if ((drive>=DOS_DRIVES) || (!Drives[drive])) {
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
strcpy(buffer,Drives[drive]->curdir);
return true;
}
bool DOS_GetAllocationInfo(Bit8u drive,Bit16u * _bytes_sector,Bit8u * _sectors_cluster,Bit16u * _total_clusters) {
if (!drive) drive = DOS_GetDefaultDrive();
else drive--;
if (drive >= DOS_DRIVES || !Drives[drive]) return false;
Bit16u _free_clusters;
Drives[drive]->AllocationInfo(_bytes_sector,_sectors_cluster,_total_clusters,&_free_clusters);
SegSet16(ds,RealSeg(dos.tables.mediaid));
reg_bx=RealOff(dos.tables.mediaid+drive*2);
return true;
}
bool DOS_MakeName(char const* const name, char* fullname, Bit8u* drive) // Nb, returns path w/o leading '\\'!
{
char makename_out[MAX_PATH]; // This will make sure that the PathCanonicalize function doesn't fail.
char makename_in[DOS_PATHLENGTH * 2];
if (!name || *name == 0 || *name == ' ') // Both \0 and space are seperators and empty filenames report file not found
{
DOS_SetError(DOSERR_FILE_NOT_FOUND);
return false;
}
char const* name_ptr = name;
if (name_ptr[1] == ':') // First get the drive
{
*drive = (*name_ptr | 0x20)-'a';
name_ptr += 2;
}
else
*drive = DOS_GetDefaultDrive();
if (*drive >= DOS_DRIVES || !Drives[*drive] || strlen(name_ptr) >= DOS_PATHLENGTH)
{
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
char * oPtr = makename_in;
if (*name_ptr != '\\' && *name_ptr != '/' && *Drives[*drive]->curdir)
oPtr += strlen(strcat(strcat(strcpy(oPtr, "\\"), Drives[*drive]->curdir), "\\"));
char const * iPtr = name_ptr;
for (int sRem = 0; *iPtr; iPtr++) // Strip bare filenames and extensions from trailing spaces
{
if (*iPtr == ' ')
sRem++;
else
{
if (*iPtr != '.' && *iPtr != '\\')
for (; sRem; sRem--)
*oPtr++ = ' ';
else
sRem = 0;
*oPtr++ = *iPtr;
}
}
*oPtr = 0;
if (!(PathCanonicalize(makename_out, makename_in) && NormalizePath(makename_out))) {
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
if ( strlen(makename_out) >= DOS_PATHLENGTH ) { // Make sure that we dont try to create a path that is longer than DOS_PATHLENGTH (80 chars)
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
strcpy(fullname, makename_out + (*makename_out =='\\' ? 1 : 0)); // Leading '\\' dropped again
return true;
}
bool DOS_GetCurrentDir(Bit8u drive,char * const buffer, bool LFN) {
if (drive==0) drive=DOS_GetDefaultDrive();
else drive--;
if ((drive>=DOS_DRIVES) || (!Drives[drive])) {
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
if (LFN && uselfn) {
char cdir[DOS_PATHLENGTH],ldir[DOS_PATHLENGTH];
if (strchr(Drives[drive]->curdir,' '))
sprintf(cdir,"\"%c:\\%s\"",drive+'A',Drives[drive]->curdir);
else
sprintf(cdir,"%c:\\%s",drive+'A',Drives[drive]->curdir);
if (!DOS_GetSFNPath(cdir,ldir,true))
return false;
strcpy(buffer,ldir+3);
if (DOS_GetSFNPath(cdir,ldir,false))
strcpy(Drives[drive]->curdir,ldir+3);
} else {
strcpy(buffer,Drives[drive]->curdir);
}
return true;
}
void DOS_Shell::Run(void) {
char input_line[CMD_MAXLINE] = {0};
std::string line;
if (cmd->FindStringRemain("/C",line)) {
strcpy(input_line,line.c_str());
char* sep = strpbrk(input_line,"\r\n"); //GTA installer
if (sep) *sep = 0;
DOS_Shell temp;
temp.echo = echo;
temp.ParseLine(input_line); //for *.exe *.com |*.bat creates the bf needed by runinternal;
temp.RunInternal(); // exits when no bf is found.
return;
}
/* Start a normal shell and check for a first command init */
WriteOut(MSG_Get("SHELL_STARTUP_BEGIN"),VERSION);
#if C_DEBUG
WriteOut(MSG_Get("SHELL_STARTUP_DEBUG"));
#endif
if (machine == MCH_CGA) WriteOut(MSG_Get("SHELL_STARTUP_CGA"));
if (machine == MCH_HERC) WriteOut(MSG_Get("SHELL_STARTUP_HERC"));
WriteOut(MSG_Get("SHELL_STARTUP_END"));
#ifdef IPHONEOS
if (automount_path[0]) {
char *p = (char*)automount_path;
char *endp = p;
char disk = 'c';
LOG_MSG("DOS_Shell::Run Auto Mount");
while (endp) {
for (p = endp; *endp && *endp != ';'; endp++)
;
if (*endp == ';') {
*endp = 0;
endp++;
} else {
endp=0;
}
if (strlen(p) <= 0) break;
sprintf(input_line, "mount %c \"%s\"",disk, p);
ParseLine(input_line);
disk++;
}
if (disk > 'c') {
sprintf(input_line, "c:");
ParseLine(input_line);
}
}
#endif
if (cmd->FindString("/INIT",line,true)) {
strcpy(input_line,line.c_str());
line.erase();
ParseLine(input_line);
}
do {
if (bf){
if(bf->ReadLine(input_line)) {
if (echo) {
if (input_line[0]!='@') {
ShowPrompt();
WriteOut_NoParsing(input_line);
WriteOut_NoParsing("\n");
};
};
ParseLine(input_line);
if (echo) WriteOut("\n");
}
#ifdef IPHONEOS
} else if (automount_path[0]) {
automount_path[0] = 0;
if (echo && !bf) WriteOut_NoParsing("\n");
sprintf(input_line, "cls");
ParseLine(input_line);
#endif
} else {
if (echo) ShowPrompt();
#ifdef IPHONEOS
dospad_command_line_ready=1;
#endif
InputCommand(input_line);
#ifdef IPHONEOS
dospad_add_history(input_line);
dospad_command_line_ready=0;
if (dospad_should_launch_game)
{
// Make sure we can access the new installed files
Bit8u drive = DOS_GetDefaultDrive();
if (Drives[drive]) {
Drives[drive]->EmptyCache();
}
FILE *fp=fopen(dospad_launch_config, "r");
if (fp != NULL)
{
char buf[256];
int sectionLength = strlen(dospad_launch_section);
while (fgets(buf, 256, fp))
{
if (strncmp(buf, dospad_launch_section, sectionLength) == 0)
{
while (fgets(buf, 256, fp))
{
if (buf[0] == '[') break;
if (buf[0] == '#') continue;
ParseLine(buf);
}
}
}
fclose(fp);
}
dospad_should_launch_game = 0;
sprintf(input_line,"cls");
dospad_launch_done();
}
#endif
ParseLine(input_line);
if (echo && !bf) WriteOut_NoParsing("\n");
}
} while (!exit);
}
static Bitu DOS_21Handler(void) {
if (((reg_ah != 0x50) && (reg_ah != 0x51) && (reg_ah != 0x62) && (reg_ah != 0x64)) && (reg_ah<0x6c)) {
DOS_PSP psp(dos.psp());
psp.SetStack(RealMake(SegValue(ss),reg_sp-18));
}
char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
static Bitu time_start = 0; //For emulating temporary time changes.
switch (reg_ah) {
case 0x00: /* Terminate Program */
DOS_Terminate(mem_readw(SegPhys(ss)+reg_sp+2),false,0);
break;
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.echo=false;
}
break;
case 0x02: /* Write character to STDOUT */
{
Bit8u c=reg_dl;Bit16u n=1;
DOS_WriteFile(STDOUT,&c,&n);
//Not in the official specs, but happens nonetheless. (last written character)
reg_al = c;// reg_al=(c==9)?0x20:c; //Officially: tab to spaces
}
break;
case 0x03: /* Read character from STDAUX */
{
Bit16u port = real_readw(0x40,0);
if(port!=0 && serialports[0]) {
Bit8u status;
// RTS/DTR on
IO_WriteB(port+4,0x3);
serialports[0]->Getchar(®_al, &status, true, 0xFFFFFFFF);
}
}
break;
case 0x04: /* Write Character to STDAUX */
{
Bit16u port = real_readw(0x40,0);
if(port!=0 && serialports[0]) {
// RTS/DTR on
IO_WriteB(port+4,0x3);
serialports[0]->Putchar(reg_dl,true,true, 0xFFFFFFFF);
// RTS off
IO_WriteB(port+4,0x1);
}
}
break;
case 0x05: /* Write Character to PRINTER */
E_Exit("DOS:Unhandled call %02X",reg_ah);
break;
case 0x06: /* Direct Console Output / Input */
switch (reg_dl) {
case 0xFF: /* Input */
{
//Simulate DOS overhead for timing sensitive games
//MM1
overhead();
//TODO Make this better according to standards
if (!DOS_GetSTDINStatus()) {
reg_al=0;
CALLBACK_SZF(true);
break;
}
Bit8u c;Bit16u n=1;
DOS_ReadFile(STDIN,&c,&n);
reg_al=c;
CALLBACK_SZF(false);
break;
}
default:
{
Bit8u c = reg_dl;Bit16u n = 1;
DOS_WriteFile(STDOUT,&c,&n);
reg_al = reg_dl;
}
break;
};
break;
case 0x07: /* Character Input, without echo */
{
Bit8u c;Bit16u n=1;
DOS_ReadFile (STDIN,&c,&n);
reg_al=c;
break;
};
case 0x08: /* Direct Character Input, without echo (checks for breaks officially :)*/
{
Bit8u c;Bit16u n=1;
DOS_ReadFile (STDIN,&c,&n);
reg_al=c;
break;
};
case 0x09: /* Write string to STDOUT */
{
Bit8u c;Bit16u n=1;
PhysPt buf=SegPhys(ds)+reg_dx;
while ((c=mem_readb(buf++))!='$') {
DOS_WriteFile(STDOUT,&c,&n);
}
}
break;
case 0x0a: /* Buffered Input */
{
//TODO ADD Break checkin in STDIN but can't care that much for it
PhysPt data=SegPhys(ds)+reg_dx;
Bit8u free=mem_readb(data);
Bit8u read=0;Bit8u c;Bit16u n=1;
if (!free) break;
free--;
for(;;) {
DOS_ReadFile(STDIN,&c,&n);
if (c == 8) { // Backspace
if (read) { //Something to backspace.
// STDOUT treats backspace as non-destructive.
DOS_WriteFile(STDOUT,&c,&n);
c = ' '; DOS_WriteFile(STDOUT,&c,&n);
c = 8; DOS_WriteFile(STDOUT,&c,&n);
--read;
}
continue;
}
if (read == free && c != 13) { // Keyboard buffer full
Bit8u bell = 7;
DOS_WriteFile(STDOUT, &bell, &n);
continue;
}
DOS_WriteFile(STDOUT,&c,&n);
mem_writeb(data+read+2,c);
if (c==13)
break;
read++;
};
mem_writeb(data+1,read);
break;
};
case 0x0b: /* Get STDIN Status */
if (!DOS_GetSTDINStatus()) {reg_al=0x00;}
else {reg_al=0xFF;}
//Simulate some overhead for timing issues
//Tankwar menu (needs maybe even more)
overhead();
break;
case 0x0c: /* Flush Buffer and read STDIN call */
{
/* flush buffer if STDIN is CON */
Bit8u handle=RealHandle(STDIN);
if (handle!=0xFF && Files[handle] && Files[handle]->IsName("CON")) {
Bit8u c;Bit16u n;
while (DOS_GetSTDINStatus()) {
n=1; DOS_ReadFile(STDIN,&c,&n);
}
}
switch (reg_al) {
case 0x1:
case 0x6:
case 0x7:
case 0x8:
case 0xa:
{
Bit8u oldah=reg_ah;
reg_ah=reg_al;
DOS_21Handler();
reg_ah=oldah;
}
break;
default:
// LOG_ERROR("DOS:0C:Illegal Flush STDIN Buffer call %d",reg_al);
reg_al=0;
break;
}
}
break;
//TODO Find out the values for when reg_al!=0
//TODO Hope this doesn't do anything special
case 0x0d: /* Disk Reset */
//Sure let's reset a virtual disk
break;
case 0x0e: /* Select Default Drive */
DOS_SetDefaultDrive(reg_dl);
reg_al=DOS_DRIVES;
break;
case 0x0f: /* Open File using FCB */
if(DOS_FCBOpen(SegValue(ds),reg_dx)){
reg_al=0;
}else{
reg_al=0xff;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x0f FCB-fileopen used, result:al=%d",reg_al);
break;
case 0x10: /* Close File using FCB */
if(DOS_FCBClose(SegValue(ds),reg_dx)){
reg_al=0;
}else{
reg_al=0xff;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x10 FCB-fileclose used, result:al=%d",reg_al);
break;
case 0x11: /* Find First Matching File using FCB */
if(DOS_FCBFindFirst(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x11 FCB-FindFirst used, result:al=%d",reg_al);
break;
case 0x12: /* Find Next Matching File using FCB */
if(DOS_FCBFindNext(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x12 FCB-FindNext used, result:al=%d",reg_al);
break;
case 0x13: /* Delete File using FCB */
if (DOS_FCBDeleteFile(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Delete used, result:al=%d",reg_al);
break;
case 0x14: /* Sequential read from FCB */
reg_al = DOS_FCBRead(SegValue(ds),reg_dx,0);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x14 FCB-Read used, result:al=%d",reg_al);
break;
case 0x15: /* Sequential write to FCB */
reg_al=DOS_FCBWrite(SegValue(ds),reg_dx,0);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x15 FCB-Write used, result:al=%d",reg_al);
break;
case 0x16: /* Create or truncate file using FCB */
if (DOS_FCBCreate(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Create used, result:al=%d",reg_al);
break;
case 0x17: /* Rename file using FCB */
if (DOS_FCBRenameFile(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
break;
case 0x1b: /* Get allocation info for default drive */
if (!DOS_GetAllocationInfo(0,®_cx,®_al,®_dx)) reg_al=0xff;
break;
case 0x1c: /* Get allocation info for specific drive */
if (!DOS_GetAllocationInfo(reg_dl,®_cx,®_al,®_dx)) reg_al=0xff;
break;
case 0x21: /* Read random record from FCB */
{
Bit16u toread=1;
reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,&toread,true);
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x21 FCB-Random read used, result:al=%d",reg_al);
break;
case 0x22: /* Write random record to FCB */
{
Bit16u towrite=1;
reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,&towrite,true);
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x22 FCB-Random write used, result:al=%d",reg_al);
break;
case 0x23: /* Get file size for FCB */
if (DOS_FCBGetFileSize(SegValue(ds),reg_dx)) reg_al = 0x00;
else reg_al = 0xFF;
break;
case 0x24: /* Set Random Record number for FCB */
DOS_FCBSetRandomRecord(SegValue(ds),reg_dx);
break;
case 0x27: /* Random block read from FCB */
reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,®_cx,false);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x27 FCB-Random(block) read used, result:al=%d",reg_al);
break;
case 0x28: /* Random Block write to FCB */
reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,®_cx,false);
LOG(LOG_FCB,LOG_NORMAL)("DOS:0x28 FCB-Random(block) write used, result:al=%d",reg_al);
break;
case 0x29: /* Parse filename into FCB */
{
Bit8u difference;
char string[1024];
MEM_StrCopy(SegPhys(ds)+reg_si,string,1023); // 1024 toasts the stack
reg_al=FCB_Parsename(SegValue(es),reg_di,reg_al ,string, &difference);
reg_si+=difference;
}
LOG(LOG_FCB,LOG_NORMAL)("DOS:29:FCB Parse Filename, result:al=%d",reg_al);
break;
case 0x19: /* Get current default drive */
reg_al=DOS_GetDefaultDrive();
break;
case 0x1a: /* Set Disk Transfer Area Address */
dos.dta(RealMakeSeg(ds,reg_dx));
break;
case 0x25: /* Set Interrupt Vector */
RealSetVec(reg_al,RealMakeSeg(ds,reg_dx));
break;
case 0x26: /* Create new PSP */
DOS_NewPSP(reg_dx,DOS_PSP(dos.psp()).GetSize());
reg_al=0xf0; /* al destroyed */
break;
case 0x2a: /* Get System Date */
{
reg_ax=0; // get time
CALLBACK_RunRealInt(0x1a);
if(reg_al) DOS_AddDays(reg_al);
int a = (14 - dos.date.month)/12;
int y = dos.date.year - a;
int m = dos.date.month + 12*a - 2;
reg_al=(dos.date.day+y+(y/4)-(y/100)+(y/400)+(31*m)/12) % 7;
reg_cx=dos.date.year;
reg_dh=dos.date.month;
reg_dl=dos.date.day;
}
break;
case 0x2b: /* Set System Date */
if (reg_cx<1980) { reg_al=0xff;break;}
if ((reg_dh>12) || (reg_dh==0)) { reg_al=0xff;break;}
if (reg_dl==0) { reg_al=0xff;break;}
if (reg_dl>DOS_DATE_months[reg_dh]) {
if(!((reg_dh==2)&&(reg_cx%4 == 0)&&(reg_dl==29))) // february pass
{ reg_al=0xff;break; }
}
dos.date.year=reg_cx;
dos.date.month=reg_dh;
dos.date.day=reg_dl;
reg_al=0;
break;
case 0x2c: { /* Get System Time */
reg_ax=0; // get time
CALLBACK_RunRealInt(0x1a);
if(reg_al) DOS_AddDays(reg_al);
reg_ah=0x2c;
Bitu ticks=((Bitu)reg_cx<<16)|reg_dx;
if(time_start<=ticks) ticks-=time_start;
Bitu time=(Bitu)((100.0/((double)PIT_TICK_RATE/65536.0)) * (double)ticks);
reg_dl=(Bit8u)((Bitu)time % 100); // 1/100 seconds
time/=100;
reg_dh=(Bit8u)((Bitu)time % 60); // seconds
time/=60;
reg_cl=(Bit8u)((Bitu)time % 60); // minutes
time/=60;
reg_ch=(Bit8u)((Bitu)time % 24); // hours
//Simulate DOS overhead for timing-sensitive games
//Robomaze 2
overhead();
break;
}
case 0x2d: /* Set System Time */
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Set System Time not supported");
//Check input parameters nonetheless
if( reg_ch > 23 || reg_cl > 59 || reg_dh > 59 || reg_dl > 99 )
reg_al = 0xff;
else { //Allow time to be set to zero. Restore the orginal time for all other parameters. (QuickBasic)
if (reg_cx == 0 && reg_dx == 0) {time_start = mem_readd(BIOS_TIMER);LOG_MSG("Warning: game messes with DOS time!");}
else time_start = 0;
reg_al = 0;
}
break;
case 0x2e: /* Set Verify flag */
dos.verify=(reg_al==1);
break;
case 0x2f: /* Get Disk Transfer Area */
SegSet16(es,RealSeg(dos.dta()));
reg_bx=RealOff(dos.dta());
break;
case 0x30: /* Get DOS Version */
if (reg_al==0) reg_bh=0xFF; /* Fake Microsoft DOS */
if (reg_al==1) reg_bh=0x10; /* DOS is in HMA */
reg_al=dos.version.major;
reg_ah=dos.version.minor;
/* Serialnumber */
reg_bl=0x00;
reg_cx=0x0000;
break;
case 0x31: /* Terminate and stay resident */
// Important: This service does not set the carry flag!
DOS_ResizeMemory(dos.psp(),®_dx);
DOS_Terminate(dos.psp(),true,reg_al);
break;
case 0x1f: /* Get drive parameter block for default drive */
case 0x32: /* Get drive parameter block for specific drive */
{ /* Officially a dpb should be returned as well. The disk detection part is implemented */
Bit8u drive=reg_dl;
if (!drive || reg_ah==0x1f) drive = DOS_GetDefaultDrive();
else drive--;
if (Drives[drive]) {
reg_al = 0x00;
SegSet16(ds,dos.tables.dpb);
reg_bx = drive;//Faking only the first entry (that is the driveletter)
LOG(LOG_DOSMISC,LOG_ERROR)("Get drive parameter block.");
} else {
reg_al=0xff;
}
}
break;
case 0x33: /* Extended Break Checking */
switch (reg_al) {
case 0:reg_dl=dos.breakcheck;break; /* Get the breakcheck flag */
case 1:dos.breakcheck=(reg_dl>0);break; /* Set the breakcheck flag */
case 2:{bool old=dos.breakcheck;dos.breakcheck=(reg_dl>0);reg_dl=old;}break;
case 3: /* Get cpsw */
/* Fallthrough */
case 4: /* Set cpsw */
LOG(LOG_DOSMISC,LOG_ERROR)("Someone playing with cpsw %x",reg_ax);
break;
case 5:reg_dl=3;break;//TODO should be z /* Always boot from c: :) */
case 6: /* Get true version number */
reg_bl=dos.version.major;
reg_bh=dos.version.minor;
reg_dl=dos.version.revision;
reg_dh=0x10; /* Dos in HMA */
break;
default:
LOG(LOG_DOSMISC,LOG_ERROR)("Weird 0x33 call %2X",reg_al);
reg_al =0xff;
break;
}
break;
case 0x34: /* Get INDos Flag */
SegSet16(es,DOS_SDA_SEG);
reg_bx=DOS_SDA_OFS + 0x01;
break;
case 0x35: /* Get interrupt vector */
reg_bx=real_readw(0,((Bit16u)reg_al)*4);
SegSet16(es,real_readw(0,((Bit16u)reg_al)*4+2));
break;
case 0x36: /* Get Free Disk Space */
{
Bit16u bytes,clusters,free;
Bit8u sectors;
if (DOS_GetFreeDiskSpace(reg_dl,&bytes,§ors,&clusters,&free)) {
reg_ax=sectors;
reg_bx=free;
reg_cx=bytes;
reg_dx=clusters;
} else {
Bit8u drive=reg_dl;
if (drive==0) drive=DOS_GetDefaultDrive();
else drive--;
if (drive<2) {
// floppy drive, non-present drivesdisks issue floppy check through int24
// (critical error handler); needed for Mixed up Mother Goose (hook)
// CALLBACK_RunRealInt(0x24);
}
reg_ax=0xffff; // invalid drive specified
}
}
break;
case 0x37: /* Get/Set Switch char Get/Set Availdev thing */
//TODO Give errors for these functions to see if anyone actually uses this shit-
switch (reg_al) {
case 0:
reg_al=0;reg_dl=0x2f;break; /* always return '/' like dos 5.0+ */
case 1:
reg_al=0;break;
case 2:
reg_al=0;reg_dl=0x2f;break;
case 3:
reg_al=0;break;
};
LOG(LOG_MISC,LOG_ERROR)("DOS:0x37:Call for not supported switchchar");
break;
case 0x38: /* Set Country Code */
if (reg_al==0) { /* Get country specidic information */
PhysPt dest = SegPhys(ds)+reg_dx;
MEM_BlockWrite(dest,dos.tables.country,0x18);
reg_ax = reg_bx = 0x01;
CALLBACK_SCF(false);
break;
} else { /* Set country code */
LOG(LOG_MISC,LOG_ERROR)("DOS:Setting country code not supported");
}
CALLBACK_SCF(true);
break;
case 0x39: /* MKDIR Create directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_MakeDir(name1)) {
reg_ax=0x05; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3a: /* RMDIR Remove directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_RemoveDir(name1)) {
reg_ax=0x05; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
LOG(LOG_MISC,LOG_NORMAL)("Remove dir failed on %s with error %X",name1,dos.errorcode);
}
break;
case 0x3b: /* CHDIR Set current directory */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_ChangeDir(name1)) {
reg_ax=0x00; /* ax destroyed */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3c: /* CREATE Create of truncate file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_CreateFile(name1,reg_cx,®_ax)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3d: /* OPEN Open existing file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_OpenFile(name1,reg_al,®_ax)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3e: /* CLOSE Close file */
if (DOS_CloseFile(reg_bx)) {
// reg_al=0x01; /* al destroyed. Refcount */
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
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;
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
modify_cycles(reg_ax);
dos.echo=false;
break;
}
case 0x40: /* WRITE Write to file or device */
{
Bit16u towrite=reg_cx;
MEM_BlockRead(SegPhys(ds)+reg_dx,dos_copybuf,towrite);
if (DOS_WriteFile(reg_bx,dos_copybuf,&towrite)) {
reg_ax=towrite;
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
modify_cycles(reg_ax);
break;
};
case 0x41: /* UNLINK Delete file */
MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF);
if (DOS_UnlinkFile(name1)) {
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x42: /* LSEEK Set current file position */
{
Bit32u pos=(reg_cx<<16) + reg_dx;
if (DOS_SeekFile(reg_bx,&pos,reg_al)) {
reg_dx=(Bit16u)(pos >> 16);
reg_ax=(Bit16u)(pos & 0xFFFF);
CALLBACK_SCF(false);
} else {
reg_ax=dos.errorcode;
CALLBACK_SCF(true);
}
break;
}
Bit8u DOS_FCB::GetDrive(void) {
Bit8u drive=(Bit8u)sGet(sFCB,drive);
if (!drive) return DOS_GetDefaultDrive();
else return drive-1;
}
bool DOS_IOCTL(void) {
Bitu handle=0;Bit8u drive=0;
/* calls 0-4,6,7,10,12,16 use a file handle */
if ((reg_al<4) || (reg_al==0x06) || (reg_al==0x07) || (reg_al==0x0a) || (reg_al==0x0c) || (reg_al==0x10)) {
handle=RealHandle(reg_bx);
if (handle>=DOS_FILES) {
DOS_SetError(DOSERR_INVALID_HANDLE);
return false;
}
if (!Files[handle]) {
DOS_SetError(DOSERR_INVALID_HANDLE);
return false;
}
} else if (reg_al<0x12) { /* those use a diskdrive except 0x0b */
if (reg_al!=0x0b) {
drive=reg_bl;if (!drive) drive = DOS_GetDefaultDrive();else drive--;
if( !(( drive < DOS_DRIVES ) && Drives[drive]) ) {
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
}
} else {
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:IOCTL Call %2X unhandled",reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
switch(reg_al) {
case 0x00: /* Get Device Information */
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_dx=Files[handle]->GetInformation();
} else {
Bit8u hdrive=Files[handle]->GetDrive();
if (hdrive==0xff) {
LOG(LOG_IOCTL,LOG_NORMAL)("00:No drive set");
hdrive=2; // defaulting to C:
}
/* return drive number in lower 5 bits for block devices */
reg_dx=(Files[handle]->GetInformation()&0xffe0)|hdrive;
}
reg_ax=reg_dx; //Destroyed officially
return true;
case 0x01: /* Set Device Information */
if (reg_dh != 0) {
DOS_SetError(DOSERR_DATA_INVALID);
return false;
} else {
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_al=(Bit8u)(Files[handle]->GetInformation() & 0xff);
} else {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
}
return true;
case 0x02: /* Read from Device Control Channel */
if (Files[handle]->GetInformation() & 0xc000) {
/* is character device with IOCTL support */
PhysPt bufptr=PhysMake(SegValue(ds),reg_dx);
Bit16u retcode=0;
if (((DOS_Device*)(Files[handle]))->ReadFromControlChannel(bufptr,reg_cx,&retcode)) {
reg_ax=retcode;
return true;
}
}
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 0x03: /* Write to Device Control Channel */
if (Files[handle]->GetInformation() & 0xc000) {
/* is character device with IOCTL support */
PhysPt bufptr=PhysMake(SegValue(ds),reg_dx);
Bit16u retcode=0;
if (((DOS_Device*)(Files[handle]))->WriteToControlChannel(bufptr,reg_cx,&retcode)) {
reg_ax=retcode;
return true;
}
}
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 0x06: /* Get Input Status */
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_al=(Files[handle]->GetInformation() & 0x40) ? 0x0 : 0xff;
} else { // FILE
Bit32u oldlocation=0;
Files[handle]->Seek(&oldlocation, DOS_SEEK_CUR);
Bit32u endlocation=0;
Files[handle]->Seek(&endlocation, DOS_SEEK_END);
if(oldlocation < endlocation){//Still data available
reg_al=0xff;
} else {
reg_al=0x0; //EOF or beyond
}
Files[handle]->Seek(&oldlocation, DOS_SEEK_SET); //restore filelocation
LOG(LOG_IOCTL,LOG_NORMAL)("06:Used Get Input Status on regular file with handle %d",handle);
}
return true;
case 0x07: /* Get Output Status */
LOG(LOG_IOCTL,LOG_NORMAL)("07:Fakes output status is ready for handle %d",handle);
reg_al=0xff;
return true;
case 0x08: /* Check if block device removable */
/* cdrom drives and drive a&b are removable */
if (drive < 2) reg_ax=0;
else if (!Drives[drive]->isRemovable()) reg_ax=1;
else {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
case 0x09: /* Check if block device remote */
if (Drives[drive]->isRemote()) {
reg_dx=0x1000; // device is remote
// undocumented bits always clear
} else {
reg_dx=0x0802; // Open/Close supported; 32bit access supported (any use? fixes Fable installer)
// undocumented bits from device attribute word
// TODO Set bit 9 on drives that don't support direct I/O
}
reg_ax=0x300;
return true;
case 0x0B: /* Set sharing retry count */
if (reg_dx==0) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
case 0x0D: /* Generic block device request */
{
if (Drives[drive]->isRemovable()) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
PhysPt ptr = SegPhys(ds)+reg_dx;
switch (reg_cl) {
case 0x60: /* Get Device parameters */
mem_writeb(ptr ,0x03); // special function
mem_writeb(ptr+1,(drive>=2)?0x05:0x14); // fixed disc(5), 1.44 floppy(14)
mem_writew(ptr+2,drive>=2); // nonremovable ?
mem_writew(ptr+4,0x0000); // num of cylinders
mem_writeb(ptr+6,0x00); // media type (00=other type)
// drive parameter block following
mem_writeb(ptr+7,drive); // drive
mem_writeb(ptr+8,0x00); // unit number
mem_writed(ptr+0x1f,0xffffffff); // next parameter block
break;
case 0x46:
case 0x66: /* Volume label */
{
char const* bufin=Drives[drive]->GetLabel();
char buffer[11] ={' '};
char const* find_ext=strchr(bufin,'.');
if (find_ext) {
Bitu size=(Bitu)(find_ext-bufin);
if (size>8) size=8;
memcpy(buffer,bufin,size);
find_ext++;
memcpy(buffer+size,find_ext,(strlen(find_ext)>3) ? 3 : strlen(find_ext));
} else {
memcpy(buffer,bufin,(strlen(bufin) > 8) ? 8 : strlen(bufin));
}
char buf2[8]={ 'F','A','T','1','6',' ',' ',' '};
if(drive<2) buf2[4] = '2'; //FAT12 for floppies
mem_writew(ptr+0,0); // 0
mem_writed(ptr+2,0x1234); //Serial number
MEM_BlockWrite(ptr+6,buffer,11);//volumename
if(reg_cl == 0x66) MEM_BlockWrite(ptr+0x11, buf2,8);//filesystem
}
break;
default :
LOG(LOG_IOCTL,LOG_ERROR)("DOS:IOCTL Call 0D:%2X Drive %2X unhandled",reg_cl,drive);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
}
case 0x0E: /* Get Logical Drive Map */
if (Drives[drive]->isRemovable()) {
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
reg_al = 0; /* Only 1 logical drive assigned */
return true;
default:
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:IOCTL Call %2X unhandled",reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
break;
}
return false;
}
bool DOS_IOCTL(void)
{
Bitu handle = 0;
Bit8u drive = 0;
// calls 0-4,6,7,10,12,16 use a file handle
if ((reg_al < 4) || (reg_al == 0x06) || (reg_al == 0x07) || (reg_al == 0x0a) || (reg_al == 0x0c) || (reg_al == 0x10))
{
handle = RealHandle(reg_bx);
if (handle >= DOS_FILES || !Files[handle])
{
DOS_SetError(DOSERR_INVALID_HANDLE);
return false;
}
}
else if (reg_al < 0x12)
{ // those use a diskdrive except 0x0b
if (reg_al != 0x0b)
{
drive = reg_bl;
if (!drive)
drive = DOS_GetDefaultDrive();
else
drive--;
if (!((drive < DOS_DRIVES) && Drives[drive]))
{
DOS_SetError(DOSERR_INVALID_DRIVE);
return false;
}
}
}
else
{
LOG(LOG_DOSMISC, LOG_ERROR)("DOS:IOCTL Call %2X unhandled", reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
switch (reg_al)
{
case 0: // Get Device Information
if (Files[handle]->GetInformation() & 0x8000) // Check for device
reg_dx = Files[handle]->GetInformation();
else
{
Bit8u hdrive = Files[handle]->GetDrive();
if (hdrive == 0xff)
hdrive = 2; // defaulting to C:
// return drive number in lower 5 bits for block devices
reg_dx = (Files[handle]->GetInformation()&0xffe0)|hdrive;
}
reg_ax = reg_dx; // Destroyed officially
return true;
case 1: // Set Device Information
if (reg_dh != 0)
{
DOS_SetError(DOSERR_DATA_INVALID);
return false;
}
if (Files[handle]->GetInformation() & 0x8000) // Check for device
reg_al = (Bit8u)(Files[handle]->GetInformation() & 0xff);
else
{
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
case 2: // Read from Device Control Channel
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 3: // Write to Device Control Channel
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
case 6: // Get Input Status
if (Files[handle]->GetInformation() & 0x8000) // Check for device
reg_al = (Files[handle]->GetInformation() & 0x40) ? 0 : 0xff;
else
{ // FILE
Bit32u oldlocation = 0;
Files[handle]->Seek(&oldlocation, DOS_SEEK_CUR);
Bit32u endlocation = 0;
Files[handle]->Seek(&endlocation, DOS_SEEK_END);
if (oldlocation < endlocation)
reg_al = 0xff; // Still data available
else
reg_al = 0; //EOF or beyond
Files[handle]->Seek(&oldlocation, DOS_SEEK_SET); // restore filelocation
}
return true;
case 7: // Get Output Status
reg_al = 0xff;
return true;
case 8: // Check if block device removable
reg_ax = 1;
return true;
case 9: // Check if block device remote
reg_dx = 0x0802; // Open/Close supported; 32bit access supported (any use? fixes Fable installer)
// undocumented bits from device attribute word
// TODO Set bit 9 on drives that don't support direct I/O
reg_ax = 0x300;
return true;
case 0x0A: // Is Device or Handle Remote?
reg_dx = 0; // No!
return true;
case 0x0B: // Set sharing retry count
return true;
case 0x0D: // Generic block device request
{
PhysPt ptr = SegPhys(ds)+reg_dx;
switch (reg_cl)
{
case 0x60: // Get Device parameters
vPC_rStosb(ptr, 3); // special function
vPC_rStosb(ptr+1, (drive>=2) ? 0x05 : 0x14); // fixed disc(5), 1.44 floppy(14)
vPC_rStosw(ptr+2, drive >= 2); // nonremovable ?
vPC_rStosw(ptr+4, 0); // num of cylinders
vPC_rStosb(ptr+6, 0); // media type (00=other type)
// drive parameter block following
vPC_rStosb(ptr+7, drive); // drive
vPC_rStosb(ptr+8, 0); // unit number
vPC_rStosd(ptr+0x1f, 0xffffffff); // next parameter block
break;
case 0x46:
case 0x66: // Volume label
{
char const* bufin = Drives[drive]->GetLabel();
char buffer[11] ={' '};
char const* find_ext = strchr(bufin,'.');
if (find_ext)
{
Bitu size = (Bitu)(find_ext-bufin);
if (size > 8)
size = 8;
memcpy(buffer, bufin,size);
find_ext++;
memcpy(buffer+size, find_ext, (strlen(find_ext)>3) ? 3 : strlen(find_ext));
}
else
memcpy(buffer,bufin, (strlen(bufin) > 8) ? 8 : strlen(bufin));
char buf2[8]={ 'F','A','T','1','6',' ',' ',' '};
if (drive < 2)
buf2[4] = '2'; // FAT12 for floppies
vPC_rStosw(ptr+0, 0); // 0
vPC_rStosd(ptr+2, 0x1234); // Serial number
vPC_rBlockWrite(ptr+6, buffer,11); // volumename
if (reg_cl == 0x66)
vPC_rBlockWrite(ptr+0x11, buf2, 8); // filesystem
}
break;
default :
LOG(LOG_IOCTL, LOG_ERROR)("DOS:IOCTL Call 0D:%2X Drive %2X unhandled", reg_cl, drive);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
return false;
}
return true;
}
case 0x0E: // Get Logical Drive Map
reg_al = 0; // Only 1 logical drive assigned
return true;
default:
LOG(LOG_DOSMISC, LOG_ERROR)("DOS:IOCTL Call %2X unhandled", reg_al);
DOS_SetError(DOSERR_FUNCTION_NUMBER_INVALID);
break;
}
return false;
}
bool DOS_MakeName(char const * const name,char * const fullname,Bit8u * drive) {
if(!name || *name == 0 || *name == ' ') {
/* Both \0 and space are seperators and
* empty filenames report file not found */
DOS_SetError(DOSERR_FILE_NOT_FOUND);
return false;
}
const char * name_int = name;
char tempdir[DOS_PATHLENGTH];
char upname[DOS_PATHLENGTH];
Bitu r,w;
Bit8u c;
*drive = DOS_GetDefaultDrive();
/* First get the drive */
if (name_int[1]==':') {
*drive=(name_int[0] | 0x20)-'a';
name_int+=2;
}
if (*drive>=DOS_DRIVES || !Drives[*drive]) {
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
r=0;
w=0;
while (name_int[r]!=0 && (r<DOS_PATHLENGTH)) {
c=name_int[r++];
if ((c>='a') && (c<='z')) c-=32;
else if (c==' ') continue; /* should be separator */
else if (c=='/') c='\\';
upname[w++]=c;
}
while (r>0 && name_int[r-1]==' ') r--;
if (r>=DOS_PATHLENGTH) {
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
upname[w]=0;
/* Now parse the new file name to make the final filename */
if (upname[0]!='\\') strcpy(fullname,Drives[*drive]->curdir);
else fullname[0]=0;
Bit32u lastdir=0;
Bit32u t=0;
while (fullname[t]!=0) {
if ((fullname[t]=='\\') && (fullname[t+1]!=0)) lastdir=t;
t++;
};
r=0;
w=0;
tempdir[0]=0;
bool stop=false;
while (!stop) {
if (upname[r]==0) stop=true;
if ((upname[r]=='\\') || (upname[r]==0)) {
tempdir[w]=0;
if (tempdir[0]==0) {
w=0;
r++;
continue;
}
if (strcmp(tempdir,".")==0) {
tempdir[0]=0;
w=0;
r++;
continue;
}
Bit32s iDown;
bool dots = true;
Bit32s templen=(Bit32s)strlen(tempdir);
for(iDown=0; (iDown < templen) && dots; iDown++)
if(tempdir[iDown] != '.')
dots = false;
// only dots?
if (dots && (templen > 1)) {
Bit32s cDots = templen - 1;
for(iDown=(Bit32s)strlen(fullname)-1; iDown>=0; iDown--) {
if(fullname[iDown]=='\\' || iDown==0) {
lastdir = iDown;
cDots--;
if(cDots==0)
break;
}
}
fullname[lastdir]=0;
t=0;
lastdir=0;
while (fullname[t]!=0) {
if ((fullname[t]=='\\') && (fullname[t+1]!=0)) lastdir=t;
t++;
}
tempdir[0]=0;
w=0;
r++;
continue;
}
lastdir=(Bit32u)strlen(fullname);
if (lastdir!=0) strcat(fullname,"\\");
char * ext=strchr(tempdir,'.');
if (ext) {
if(strchr(ext+1,'.')) {
//another dot in the extension =>file not found
//Or path not found depending on wether
//we are still in dir check stage or file stage
if(stop)
DOS_SetError(DOSERR_FILE_NOT_FOUND);
else
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
ext[4] = 0;
if((strlen(tempdir) - strlen(ext)) > 8) memmove(tempdir + 8, ext, 5);
} else tempdir[8]=0;
for (Bitu i=0; i<strlen(tempdir); i++) {
c=tempdir[i];
if ((c>='A') && (c<='Z')) continue;
if ((c>='0') && (c<='9')) continue;
switch (c) {
case '$':
case '#':
case '@':
case '(':
case ')':
case '!':
case '%':
case '{':
case '}':
case '`':
case '~':
case '_':
case '-':
case '.':
case '*':
case '?':
case '&':
case '\'':
case '+':
case '^':
case 246:
case 255:
case 0xa0:
case 0xe5:
case 0xbd:
case 0x9d:
break;
default:
LOG(LOG_FILES,LOG_NORMAL)("Makename encountered an illegal char %c hex:%X in %s!",c,c,name);
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
break;
}
}
if (strlen(fullname)+strlen(tempdir)>=DOS_PATHLENGTH) {
DOS_SetError(DOSERR_PATH_NOT_FOUND);
return false;
}
strcat(fullname,tempdir);
tempdir[0]=0;
w=0;
r++;
continue;
}
tempdir[w++]=upname[r++];
}
return true;
}
static Bitu DOS_21Handler(void)
{
if (((reg_ah != 0x50) && (reg_ah != 0x51) && (reg_ah != 0x62) && (reg_ah != 0x64)) && (reg_ah < 0x6c))
if (dos.psp() != 0) // No program loaded yet?
{
DOS_PSP psp(dos.psp());
psp.SetStack(SegOff2dWord(SegValue(ss), reg_sp-18));
psp.FindFreeFileEntry();
}
char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
switch (reg_ah)
{
case 0x00: // Terminate Program
DOS_Terminate(Mem_Lodsw(SegPhys(ss)+reg_sp+2), false, 0);
break;
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.echo = false;
}
break;
case 0x02: // Write character to STDOUT
{
Bit8u c = reg_dl;
Bit16u n = 1;
DOS_WriteFile(STDOUT, &c, &n);
// Not in the official specs, but happens nonetheless. (last written character)
reg_al = c; // reg_al=(c==9)?0x20:c; //Officially: tab to spaces
}
break;
case 0x03: // Read character from STDAUX
{
Bit16u port = Mem_Lodsw(0x40, 0);
if (port != 0 && serialPorts[0])
serialPorts[0]->Getchar(®_al);
}
break;
case 0x04: // Write Character to STDAUX
{
Bit16u port = Mem_Lodsw(0x40, 0);
if (port != 0 && serialPorts[0])
serialPorts[0]->Putchar(reg_dl);
}
break;
case 0x05: // Write Character to PRINTER
parallelPorts[0]->Putchar(reg_dl);
break;
case 0x06: // Direct Console Output/Input
if (reg_dl == 0xff) // Input
{
// TODO Make this better according to standards
if (!DOS_GetSTDINStatus())
{
reg_al = 0;
CALLBACK_SZF(true);
break;
}
Bit8u c;
Bit16u n = 1;
DOS_ReadFile(STDIN, &c, &n);
reg_al = c;
CALLBACK_SZF(false);
}
else // Ouput
{
Bit8u c = reg_dl;
Bit16u n = 1;
DOS_WriteFile(STDOUT, &c, &n);
reg_al = reg_dl;
}
break;
case 0x07: // 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);
reg_al = c;
}
break;
case 0x09: // Write string to STDOUT
{
Bit8u c;
Bit16u n = 1;
PhysPt buf = SegPhys(ds)+reg_dx;
while ((c = Mem_Lodsb(buf++)) != '$')
DOS_WriteFile(STDOUT, &c, &n);
}
break;
case 0x0a: // Buffered Input
{
// TODO ADD Break checkin in STDIN but can't care that much for it
PhysPt data = SegPhys(ds)+reg_dx;
Bit8u free = Mem_Lodsb(data);
if (!free)
break;
Bit8u read = 0;
Bit8u c;
Bit16u n = 1;
for(;;)
{
DOS_ReadFile(STDIN, &c ,&n);
if (c == 8)
{ // Backspace
if (read)
{ // Something to backspace.
DOS_WriteFile(STDOUT, &c, &n); // STDOUT treats backspace as non-destructive.
c = ' ';
DOS_WriteFile(STDOUT, &c, &n);
c = 8;
DOS_WriteFile(STDOUT, &c, &n);
--read;
}
continue;
}
if (read >= free) // Keyboard buffer full
{
Beep(1750, 300);
continue;
}
DOS_WriteFile(STDOUT, &c, &n);
Mem_Stosb(data+read+2, c);
if (c == 13)
break;
read++;
}
Mem_Stosb(data+1, read);
}
break;
case 0x0b: // Get STDIN Status
reg_al = DOS_GetSTDINStatus() ? 0xff : 0x00;
break;
case 0x0c: // Flush Buffer and read STDIN call
{
Bit8u handle = RealHandle(STDIN);
if (handle != 0xFF && Files[handle] && Files[handle]->IsName("CON")) // flush buffer if STDIN is CON
{
Bit8u c;
Bit16u n;
while (DOS_GetSTDINStatus())
{
n = 1;
DOS_ReadFile(STDIN, &c, &n);
}
}
if (reg_al == 0x1 || reg_al == 0x6 || reg_al == 0x7 || reg_al == 0x8 || reg_al == 0xa)
{
Bit8u oldah = reg_ah;
reg_ah = reg_al;
DOS_21Handler();
reg_ah = oldah;
}
else
reg_al = 0;
}
break;
case 0x0d: // Disk Reset
break;
case 0x0e: // Select Default Drive
DOS_SetDefaultDrive(reg_dl);
reg_al = DOS_DRIVES;
break;
case 0x0f: // Open File using FCB
reg_al = DOS_FCBOpen(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x10: // Close File using FCB
reg_al = DOS_FCBClose(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x11: // Find First Matching File using FCB
reg_al = DOS_FCBFindFirst(SegValue(ds), reg_dx) ? 0 : 0xFF; // No test for C:\COMMAND.COM!
break;
case 0x12: // Find Next Matching File using FCB
reg_al = DOS_FCBFindNext(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x13: // Delete File using FCB
reg_al = DOS_FCBDeleteFile(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x14: // Sequential read from FCB
reg_al = DOS_FCBRead(SegValue(ds), reg_dx, 0);
break;
case 0x15: // Sequential write to FCB
reg_al = DOS_FCBWrite(SegValue(ds), reg_dx, 0);
break;
case 0x16: // Create or truncate file using FCB
reg_al = DOS_FCBCreate(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x17: // Rename file using FCB
reg_al = DOS_FCBRenameFile(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x1b: // Get allocation info for default drive
if (!DOS_GetAllocationInfo(0, ®_cx, ®_al, ®_dx))
reg_al = 0xFF;
break;
case 0x1c: // Get allocation info for specific drive
if (!DOS_GetAllocationInfo(reg_dl, ®_cx, ®_al, ®_dx))
reg_al = 0xFF;
break;
case 0x21: // Read random record from FCB
reg_al = DOS_FCBRandomRead(SegValue(ds), reg_dx, 1, true);
break;
case 0x22: // Write random record to FCB
reg_al = DOS_FCBRandomWrite(SegValue(ds), reg_dx, 1, true);
break;
case 0x23: // Get file size for FCB
reg_al = DOS_FCBGetFileSize(SegValue(ds), reg_dx) ? 0 : 0xFF;
break;
case 0x24: // Set Random Record number for FCB
DOS_FCBSetRandomRecord(SegValue(ds), reg_dx);
break;
case 0x27: // Random block read from FCB
reg_al = DOS_FCBRandomRead(SegValue(ds), reg_dx, reg_cx, false);
break;
case 0x28: // Random Block write to FCB
reg_al = DOS_FCBRandomWrite(SegValue(ds), reg_dx, reg_cx, false);
break;
case 0x29: // Parse filename into FCB
{
Bit8u difference;
char string[1024];
Mem_StrnCopyFrom(string, SegPhys(ds)+reg_si, 1023); // 1024 toasts the stack
reg_al = FCB_Parsename(SegValue(es), reg_di, reg_al, string, &difference);
reg_si += difference;
}
break;
case 0x19: // Get current default drive
reg_al = DOS_GetDefaultDrive();
break;
case 0x1a: // Set Disk Transfer Area Address
dos.dta(RealMakeSeg(ds, reg_dx));
break;
case 0x25: // Set Interrupt Vector
RealSetVec(reg_al, RealMakeSeg(ds, reg_dx));
break;
case 0x26: // Create new PSP
DOS_NewPSP(reg_dx, DOS_PSP(dos.psp()).GetSize());
break;
case 0x2a: // Get System Date
{
_SYSTEMTIME systime; // Return the Windows localdate
GetLocalTime(&systime);
reg_al = (Bit8u)systime.wDayOfWeek; // NB Sunday = 0, despite of MSDN documentation
reg_cx = systime.wYear;
reg_dx = (systime.wMonth<<8)+systime.wDay;
}
break;
case 0x2b: // Set System Date (we don't!)
reg_al = 0xff;
daysInMonth[2] = reg_cx&3 ? 28 : 29; // Year is from 1980 to 2099, it is this simple
if (reg_cx >= 1980 && reg_cx <= 2099)
if (reg_dh > 0 && reg_dh <= 12)
if (reg_dl > 0 && reg_dl <= daysInMonth[reg_dh])
reg_al = 0; // Date is valid, fake set
break;
case 0x2c: // Get System Time
{
_SYSTEMTIME systime; // Return the Windows localtime
GetLocalTime(&systime);
reg_cx = (systime.wHour<<8) + systime.wMinute;
reg_dx = (systime.wSecond<<8) + systime.wMilliseconds/10;
}
break;
case 0x2d: // Set System Time (we don't!)
if (reg_ch < 24 && reg_cl < 60 && reg_dh < 60 && reg_dl < 100)
reg_al = 0; // Time is valid, fake set
else
reg_al = 0xff;
break;
case 0x2e: // Set Verify flag
dos.verify = (reg_al == 1);
break;
case 0x2f: // Get Disk Transfer Area
SegSet16(es, RealSeg(dos.dta()));
reg_bx = RealOff(dos.dta());
break;
case 0x30: // Get DOS Version
if (reg_al == 0)
reg_bh = 0xFF; // Fake Microsoft DOS
else if (reg_al == 1)
reg_bh = 0; // DOS is NOT in HMA
reg_al = dos.version.major;
reg_ah = dos.version.minor;
reg_bl = 0; // Serialnumber
reg_cx = 0;
break;
case 0x31: // Terminate and stay resident
// Important: This service does not set the carry flag!
DOS_ResizeMemory(dos.psp(), ®_dx);
DOS_Terminate(dos.psp(), true, reg_al);
break;
case 0x1f: // Get drive parameter block for default drive
case 0x32: // Get drive parameter block for specific drive
{ // Officially a dpb should be returned as well. The disk detection part is implemented
Bit8u drive = reg_dl;
if (!drive || reg_ah == 0x1f)
drive = DOS_GetDefaultDrive();
else
drive--;
if (Drives[drive])
{
reg_al = 0;
SegSet16(ds, dos.tables.dpb);
reg_bx = drive; // Faking only the first entry (that is the driveletter)
}
else
reg_al = 0xff;
}
break;
case 0x33: // Extended Break Checking
switch (reg_al)
{
case 0: // Get the breakcheck flag
reg_dl = dos.breakcheck;
break;
case 1: // Set the breakcheck flag
dos.breakcheck = (reg_dl > 0);
break;
case 2:
{
bool old = dos.breakcheck;
dos.breakcheck = (reg_dl > 0);
reg_dl = old;
}
break;
case 3: // Get cpsw
case 4: // Set cpsw, both not used really
break;
case 5:
reg_dl = 3; // Boot drive = C:
break;
case 6: // Get true version number
reg_bx = (dos.version.minor<<8) + dos.version.major;
reg_dx = 0x1000; // Dos in ROM
break;
default:
reg_al = 0xff;
}
break;
case 0x34: // Get address of INDos Flag
SegSet16(es, DOS_SDA_SEG);
reg_bx = DOS_SDA_OFS + 0x01;
break;
case 0x35: // Get interrupt vector
reg_bx = Mem_Lodsw(0, ((Bit16u)reg_al)*4);
SegSet16(es, Mem_Lodsw(0, ((Bit16u)reg_al)*4+2));
break;
case 0x36: // Get Free Disk Space
{
Bit16u bytes, clusters, free;
Bit8u sectors;
if (DOS_GetFreeDiskSpace(reg_dl, &bytes, §ors, &clusters, &free))
{
reg_ax = sectors;
reg_bx = free;
reg_cx = bytes;
reg_dx = clusters;
}
else
reg_ax = 0xffff; // invalid drive specified
}
break;
case 0x37: // Get/Set Switch char Get/Set Availdev thing
switch (reg_al)
{
case 0:
reg_dl = 0x2f; // Always return '/' like dos 5.0+
break;
case 1:
reg_al = 0;
break;
case 2:
reg_al = 0;
reg_dl = 0x2f;
break;
case 3:
reg_al = 0;
break;
}
break;
case 0x38: // Get/set Country Code
if (reg_al == 0) // Get country specidic information
{
PhysPt dest = SegPhys(ds)+reg_dx;
Mem_CopyTo(dest, dos.tables.country, 0x18);
reg_ax = reg_bx = 1;
CALLBACK_SCF(false);
}
else // Set country code
CALLBACK_SCF(true);
break;
case 0x39: // MKDIR Create directory
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_MakeDir(name1))
{
reg_ax = 0xffff; // AX destroyed
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3a: // RMDIR Remove directory
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_RemoveDir(name1))
{
reg_ax = 0xffff; // AX destroyed
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3b: // CHDIR Set current directory
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_ChangeDir(name1))
{
reg_ax = 0xff00; // AX destroyed
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3c: // CREATE Create or truncate file
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_CreateFile(name1, reg_cx, ®_ax))
CALLBACK_SCF(false);
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3d: // OPEN Open existing file
{
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_OpenFile(name1, reg_al, ®_ax))
CALLBACK_SCF(false);
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
}
case 0x3e: // CLOSE Close file
if (DOS_CloseFile(reg_bx))
CALLBACK_SCF(false);
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x3f: // READ Read from file or device
{
Bit16u toread = reg_cx;
dos.echo = true;
if (DOS_ReadFile(reg_bx, dos_copybuf, &toread))
{
Mem_CopyTo(SegPhys(ds)+reg_dx, dos_copybuf, toread);
reg_ax = toread;
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
dos.echo = false;
}
break;
case 0x40: // WRITE Write to file or device
{
Bit16u towrite = reg_cx;
Mem_CopyFrom(SegPhys(ds)+reg_dx, dos_copybuf, towrite);
if (DOS_WriteFile(reg_bx, dos_copybuf, &towrite))
{
reg_ax = towrite;
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
}
break;
case 0x41: // UNLINK Delete file
Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF);
rSpTrim(name1);
if (DOS_UnlinkFile(name1))
CALLBACK_SCF(false);
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
break;
case 0x42: // LSEEK Set current file position
{
Bit32u pos = (reg_cx<<16) + reg_dx;
if (DOS_SeekFile(reg_bx, &pos, reg_al))
{
reg_dx = (Bit16u)(pos >> 16);
reg_ax = (Bit16u)(pos & 0xFFFF);
CALLBACK_SCF(false);
}
else
{
reg_ax = dos.errorcode;
CALLBACK_SCF(true);
}
}
