<'
import fifo_clk.e;
import fifo_sb.e;
import fifo_driver.e;

struct fifo_tb {
  scoreboard : fifo_sb;

  driver     : fifo_driver;
    keep driver.sb == scoreboard;

  go()@sys.clk is {
     start driver.go();
  };
};

extend sys {
  tb  : fifo_tb;
  run() is also {
    start tb.go();
  };
};
'>