* @return Stella_Object
   */
  public static Stella_Object timeCommand(Cons command) {
    { CalendarDate starttime = CalendarDate.makeCurrentDateTime();
      long startcpu = Native.getTicktock();
      Stella_Object result = Stella_Object.evaluate(command);
      long endcpu = Native.getTicktock();
      TimeDuration elapsedtime = ((TimeDuration)(DateTimeObject.timeSubtract(CalendarDate.makeCurrentDateTime(), starttime)));

      System.out.println("CPU Time:     " + Native.ticktockDifference(startcpu, endcpu) + " secs");
      System.out.print("Elapsed Time: ");
      if (elapsedtime.days > 0) {
        System.out.print(elapsedtime.days + " days, ");
      }
      System.out.println(Native.round(elapsedtime.millis / 1000.0) + " secs");
      return (result);
    }
  }