function zmodem_receive(
    path: string; comport: word; baudrate: longint; init: boolean
  ): boolean;


  function zmodem_send(
    pathname: string; lastfile: boolean; comport: word; baudrate: longint;
    init: boolean
  ): boolean;

  procedure z_message(s: string);
  procedure z_setcomport(port: byte; fossiloverride: boolean);
  procedure z_sendcan;