# Pastebin cvhB2Cr7
/* Binary counter displayed on LEDs (the 4 green ones on the right).
 * Changes value about once a second.
 */
module top (
	input  inclk,
	output LED2,
	output LED3,
	output LED4,
	output LED5
);

	wire clk;

	SB_GB_IO
		#(.PIN_TYPE(6'b000001))
	gb_io_inst
		(.PACKAGE_PIN(inclk),
		 .D_IN_0(),
		 .GLOBAL_BUFFER_OUTPUT(clk));

	localparam BITS = 4;
	localparam LOG2DELAY = 22;

	reg [BITS+LOG2DELAY-1:0] counter = 0;
	reg [BITS-1:0] outcnt;

	always @(posedge clk) begin
		counter <= counter + 1;
		outcnt <= counter >> LOG2DELAY;
	end

	assign {LED2, LED3, LED4, LED5} = outcnt;
endmodule