public LinkedList<ReservationStation> runCycle() {
		LinkedList<ReservationStation> done = new LinkedList<ReservationStation>();
		for (int i = 0; i < stations.length; i++) {
			for (int j = 0; j < stations[i].length; j++) {
				if (stations[i][j].isBusy() && stations[i][j].exec()) {
					done.add(stations[i][j]);
				}
			}
		}
		return done;
	}