demo.v

module demo(
	(* side=LEFT, colors=WHITE *)
	input en,
	(* side=RIGHT, colors={WHITE,ORANGE,LIGHTGRAY,LIGHTBLUE} *)
	output [3:0] lamps
);

(* analog *)
reg random;

RandomizerAnalog ar (
	.Min(0),
	.Max(4),
	.Q(random)
);

DeMux16Analog d16 (
	.I(1),
	.S(random),
	.O(lamps)
);

endmodule