module counter_tb; reg clk_counter, rst_counter; wire [7:0] q_counter; counter_original C_1( clk_counter, q_counter, rst_counter); initial begin #0 rst_counter = 1'b1; clk_counter = 1'b0; #100 rst_counter = 1'b0; end always begin #10 clk_counter = ~clk_counter; end initial begin #5000 $stop; end endmodule