| `timescale 1ns/1ps | |
| module testbench; | |
| reg clk; | |
| initial begin | |
| // $dumpfile("testbench.vcd"); | |
| // $dumpvars(0, testbench); | |
| #0 clk = 0; | |
| repeat (10000) begin | |
| #5 clk = 1; | |
| #5 clk = 0; | |
| end | |
| $display("OKAY"); | |
| end | |
| reg [3:0] a = 0; | |
| wire res_p; | |
| wire res; | |
| always @(posedge clk) | |
| begin | |
| a = a + 1; | |
| end | |
| assign res_p = a < 6'b100000; | |
| top uut(a,res); | |
| assert_dff check_res (clk,res, res_p); | |
| endmodule |