byte OpenFile(int channel, byte[] filename)
{
FileAccessMode filemode = FileAccessMode.FMODE_READ;
FileType filetype = FileType.FTYPE_PRG;
int track = -1;
int sector = -1;
C64InternalFileSpec fileSpec = new C64InternalFileSpec(filename);
// Channel 0 is READ PRG, channel 1 is WRITE PRG
if (channel == 0)
{
filemode = FileAccessMode.FMODE_READ;
filetype = FileType.FTYPE_PRG;
}
if (channel == 1)
{
filemode = FileAccessMode.FMODE_WRITE;
filetype = FileType.FTYPE_PRG;
}
// Allow only read accesses
if (filemode != FileAccessMode.FMODE_READ)
{
set_error(ErrorCode1541.ERR_WRITEPROTECT);
return (byte)C64StatusCode.ST_OK;
}
// Find file in directory and open it
if (FindFile(fileSpec.Name, ref track, ref sector))
return open_file_ts(channel, track, sector);
else
set_error(ErrorCode1541.ERR_FILENOTFOUND);
return (byte)C64StatusCode.ST_OK;
#if false
//using (BytePtr plainname = new BytePtr(256))
//{
// FileAccessMode filemode = FileAccessMode.FMODE_READ;
// FileType filetype = FileType.FTYPE_PRG;
// int track = -1, sector = -1;
// convert_filename(filename, plainname, ref filemode, ref filetype);
// // Channel 0 is READ PRG, channel 1 is WRITE PRG
// if (channel == 0)
// {
// filemode = FileAccessMode.FMODE_READ;
// filetype = FileType.FTYPE_PRG;
// }
// if (channel == 1)
// {
// filemode = FileAccessMode.FMODE_WRITE;
// filetype = FileType.FTYPE_PRG;
// }
// // Allow only read accesses
// if (filemode != FileAccessMode.FMODE_READ)
// {
// set_error(ErrorCode1541.ERR_WRITEPROTECT);
// return (byte)C64StatusCode.ST_OK;
// }
// // Find file in directory and open it
// if (find_file(plainname, ref track, ref sector))
// return open_file_ts(channel, track, sector);
// else
// set_error(ErrorCode1541.ERR_FILENOTFOUND);
//return (byte)C64StatusCode.ST_OK;
//}
#endif
}
