int CheckCdrom() {
struct iso_directory_record *dir;
unsigned char time[4], *buf;
unsigned char mdir[4096];
char exename[256];
int i, len, c;
FreePPFCache();
time[0] = itob(0);
time[1] = itob(2);
time[2] = itob(0x10);
READTRACK();
memset(CdromLabel, 0, sizeof(CdromLabel));
memset(CdromId, 0, sizeof(CdromId));
memset(exename, 0, sizeof(exename));
strncpy(CdromLabel, buf + 52, 32);
// skip head and sub, and go to the root directory record
dir = (struct iso_directory_record *)&buf[12 + 156];
mmssdd(dir->extent, (char *)time);
READDIR(mdir);
if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) {
READTRACK();
sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename);
if (GetCdromFile(mdir, time, exename) == -1) {
sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename);
if (GetCdromFile(mdir, time, exename) == -1) {
char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir
if (ptr != NULL) {
ptr += 6;
while (*ptr == '\\' || *ptr == '/') ptr++;
strncpy(exename, ptr, 255);
exename[255] = '\0';
ptr = exename;
while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
*ptr = '\0';
if (GetCdromFile(mdir, time, exename) == -1)
return -1; // main executable not found
} else
return -1;
}
}
} else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) {
strcpy(exename, "PSX.EXE;1");
strcpy(CdromId, "SLUS99999");
} else
return -1; // SYSTEM.CNF and PSX.EXE not found
if (CdromId[0] == '\0') {
len = strlen(exename);
c = 0;
for (i = 0; i < len; ++i) {
if (exename[i] == ';' || c >= sizeof(CdromId) - 1)
break;
if (isalnum(exename[i]))
CdromId[c++] = exename[i];
}
}
if (Config.PsxAuto) { // autodetect system (pal or ntsc)
if((CdromId[2] == 'e') || (CdromId[2] == 'E') ||
!strncmp(CdromId, "DTLS3035", 8) ||
!strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL
!strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID;
!strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered.
Config.PsxType = PSX_TYPE_PAL; // pal
else Config.PsxType = PSX_TYPE_NTSC; // ntsc
}
if (Config.PsxStock == 0) {
PsxClockSpeed = 33868800; // 33.8688 MHz (stock)
} else {
if (Config.PsxClock == 0) {
PsxClockSpeed = 16934400; // 16.9344 MHz (0.5x)
}
if (Config.PsxClock == 1) {
PsxClockSpeed = 25401600; // 25.4016 MHz (0.75x)
}
if (Config.PsxClock == 2) {
PsxClockSpeed = 50803200; // 50.8032 MHz (1.5x)
}
if (Config.PsxClock == 3) {
PsxClockSpeed = 67737600; // 67.7376 MHz (2x)
}
if (Config.PsxClock == 4) {
PsxClockSpeed = 101606400; // 101.6064 MHz (3x)
}
if (Config.PsxClock == 5) {
PsxClockSpeed = 135475200; // 135.4752 MHz (4x)
}
if (Config.PsxClock == 6) {
PsxClockSpeed = 169344000; // 169.3440 MHz (5x)
}
}
if (CdromLabel[0] == ' ') {
strncpy(CdromLabel, CdromId, 9);
}
SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel);
SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId);
SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename);
BuildPPFCache();
LoadSBI(NULL);
return 0;
}
int CheckCdrom() {
struct iso_directory_record *dir;
unsigned char time[4];
char *buf;
unsigned char mdir[4096];
char exename[256];
int i, c;
FreePPFCache();
time[0] = itob(0);
time[1] = itob(2);
time[2] = itob(0x10);
READTRACK();
CdromLabel[0] = '\0';
CdromId[0] = '\0';
strncpy(CdromLabel, buf + 52, 32);
// skip head and sub, and go to the root directory record
dir = (struct iso_directory_record *)&buf[12 + 156];
mmssdd(dir->extent, (char *)time);
READDIR(mdir);
if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) {
READTRACK();
sscanf(buf + 12, "BOOT = cdrom:\\%256s", exename);
if (GetCdromFile(mdir, time, exename) == -1) {
sscanf(buf + 12, "BOOT = cdrom:%256s", exename);
if (GetCdromFile(mdir, time, exename) == -1) {
char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir
if (ptr != NULL) {
ptr += 6;
while (*ptr == '\\' || *ptr == '/') ptr++;
strncpy(exename, ptr, 255);
exename[255] = '\0';
ptr = exename;
while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
*ptr = '\0';
if (GetCdromFile(mdir, time, exename) == -1)
return -1; // main executable not found
} else
return -1;
}
}
} else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) {
strcpy(exename, "PSX.EXE;1");
strcpy(CdromId, "SLUS99999");
} else
return -1; // SYSTEM.CNF and PSX.EXE not found
if (CdromId[0] == '\0') {
i = strlen(exename);
if (i >= 2) {
if (exename[i - 2] == ';') i-= 2;
c = 8; i--;
while (i >= 0 && c >= 0) {
if (isalnum(exename[i])) CdromId[c--] = exename[i];
i--;
}
}
}
if (CdromId[0] == '\0')
strcpy(CdromId, "SLUS99999");
if (Config.PsxAuto) { // autodetect system (pal or ntsc)
if (CdromId[2] == 'e' || CdromId[2] == 'E')
Config.PsxType = PSX_TYPE_PAL; // pal
else Config.PsxType = PSX_TYPE_NTSC; // ntsc
}
if (CdromLabel[0] == ' ') {
strncpy(CdromLabel, CdromId, 9);
}
SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel);
SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId);
BuildPPFCache();
return 0;
}