code: public final int readTTFLong() throws IOException {
          long ret = readTTFUByte();    // << 8;
          ret = (ret << 8) + readTTFUByte();
          ret = (ret << 8) + readTTFUByte();
          ret = (ret << 8) + readTTFUByte();
  
          return (int)ret;
      }
docs: Read 4 bytes.
  
  @return One signed integer
  @throws IOException If EOF is reached