Subversion Repositories mod3_calc

module  mod3_tb ();

    reg [ 7: 0] dat_i;

    reg [ 1: 0] comp;

    reg [ 1: 0] err_cnt;

    wire    [ 1: 0] reminder;

    initial begin

        $display("------------------The self_check begin ------------------");

        dat_i   = 0;

        err_cnt = 0;

        repeat(256) begin

            comp    = dat_i % 3;

            #5;

            if (reminder != comp)   begin

                $display("comp = %d, calc data = %d", comp, reminder);

                err_cnt = err_cnt + 1;

            end

            dat_i   = dat_i + 1;

        end

        if (err_cnt == 0)

            $display("------------------The self_check passed------------------");

        else

            $display("------------------The self_check failed------------------");

        $stop;

    end

    mod3 M0(

        .dat_i(dat_i),

        .reminder(reminder)

    );

endmodule