bool
ROMFile::isVC1541RomFile(const char *filename)
{
if (!checkFileSize(filename, 0x4000, 0x4000)) return false;
return
checkFileHeader(filename, magicVC1541RomBytes1) ||
checkFileHeader(filename, magicVC1541RomBytes2) ||
checkFileHeader(filename, magicVC1541RomBytes3) ||
checkFileHeader(filename, magicVC1541RomBytes4);
}
bool
Snapshot::isSnapshot(const char *filename)
{
int magic_bytes[] = { 'V', 'C', '6', '4', EOF };
assert(filename != NULL);
if (!checkFileHeader(filename, magic_bytes))
return false;
return true;
}
AllMaps::AllMaps()
{
//y = 2 x = 3
checkFileHeader("data/map33.dat");
loadMapfromFile(0,0);
loadMapfromFile(0,1);
loadMapfromFile(0,2);
loadMapfromFile(1,0);
loadMapfromFile(1,1);
loadMapfromFile(1,2);
}
int PackTos::canUnpack()
{
if (!readFileHeader())
return false;
if (!readPackHeader(768))
return false;
// check header as set by packer
if ((ih.fh_text & 3) != 0 || (ih.fh_data & 3) != 0 || (ih.fh_bss & 3) != 0
|| ih.fh_sym != 0 || ih.fh_reserved != 0 || ih.fh_reloc > 1)
throwCantUnpack("program header damaged");
// generic check
if (!checkFileHeader())
throwCantUnpack("unsupported header flags");
return true;
}
bool PackTos::canPack()
{
if (!readFileHeader())
return false;
unsigned char buf[768];
fi->readx(buf, sizeof(buf));
checkAlreadyPacked(buf, sizeof(buf));
if (!checkFileHeader())
throwCantPack("unsupported header flags");
if (file_size < 1024)
throwCantPack("program is too small");
return true;
}
bool
TAPFile::isTAPFile(const char *filename)
{
assert (filename != NULL);
if (!checkFileSuffix(filename, ".TAP") && !checkFileSuffix(filename, ".tap") &&
!checkFileSuffix(filename, ".T64") && !checkFileSuffix(filename, ".t64"))
return false;
if (!checkFileSize(filename, 0x15, -1))
return false;
if (!checkFileHeader(filename, magicBytes))
return false;
return true;
}
bool
Cartridge::isCRTFile(const char *filename)
{
int magic_bytes[] = { 'C','6','4',' ','C','A','R','T','R','I','D','G','E',' ',' ',' ',EOF };
assert(filename != NULL);
if (!checkFileSuffix(filename, ".CRT") && !checkFileSuffix(filename, ".crt"))
return false;
if (!checkFileSize(filename, 0x40, -1))
return false;
if (!checkFileHeader(filename, magic_bytes))
return false;
return true;
}
bool
T64File::isT64File(const char *path)
{
assert(path != NULL);
if (!checkFileSuffix(path, ".T64") && !checkFileSuffix(path, ".t64"))
return false;
if (TAPFile::isTAPFile(path)) // Note: TAP files have a very similar header
return false;
if (!checkFileSize(path, 0x40, -1))
return false;
if (!checkFileHeader(path, magicBytes))
return false;
return true;
}
bool
G64Archive::isG64File(const char *filename)
{
/* "GCR-1541" + Version number (0x00) */
int magic_bytes[] = { 0x47, 0x43, 0x52, 0x2D, 0x31, 0x35, 0x34, 0x31, 0x00, EOF };
assert(filename != NULL);
if (!checkFileSuffix(filename, ".G64") && !checkFileSuffix(filename, ".g64"))
return false;
if (!checkFileSize(filename, 0x02AC, -1))
return false;
if (!checkFileHeader(filename, magic_bytes))
return false;
return true;
}
bool
T64Archive::isT64File(const char *filename)
{
/* "Anmerkung: Der String muß nicht wortwörtlich so vorhanden sein. Man sollte nach den Substrings "C64" und "tape" suchen. Vorsicht: TAP Images verwenden den String: C64-TAPE-RAW der ebenfalls die Substrings "C64" und "TAPE" enthält." [Power64 doc]
TODO: Make sure that the archive is not a TAP file. */
int magic_bytes[] = { 0x43, 0x36, 0x34, EOF };
assert(filename != NULL);
if (!checkFileSuffix(filename, ".T64") && !checkFileSuffix(filename, ".t64"))
return false;
if (!checkFileSize(filename, 0x40, -1))
return false;
if (!checkFileHeader(filename, magic_bytes))
return false;
return true;
}
bool
ROMFile::isKernalRomFile(const char *filename)
{
if (!checkFileSize(filename, 0x2000, 0x2000)) return false;
return checkFileHeader(filename, magicKernalRomBytes);
}
