// File : tb_top.sv
module tb_top ();

	reg clk;
	reg resetn;
	reg d;
	wire q;

	// Instantiate the design
	d_ff  d_ff0 (	.clk (clk),
		       		.resetn (resetn),
		       		.d (d),
		       		.q (q));

	// Create a clock
	always #10 clk <= ~clk;

	initial begin
		resetn <= 0;
		d <= 0;

		#10 resetn <= 1;
		#5      d <= 1;
		#8      d <= 0;
		#2      d <= 1;
		#10     d <= 0;
	end
endmodule