private byte open_file_ts(int channel, int track, int sector)
{
AllocateChannelBuffer(channel, 256);
chan_mode[channel] = ChannelMode.CHMOD_FILE;
// On the next call to Read, the first block will be read
chan_buf[channel][0] = (byte)track;
chan_buf[channel][1] = (byte)sector;
buf_len[channel] = 0;
return (byte)C64StatusCode.ST_OK;
}