task convd;
        input [16:0] num;
        output [(8*5)-1:0] str;
        begin
            str[39:32] = "0" + ((num/16'd10000) % 16'd10);
            str[31:24] = "0" + ((num/16'd1000) % 16'd10);
            str[23:16] = "0" + ((num/16'd100) % 16'd10);
            str[15:8] = "0" + ((num/16'd10) % 16'd10);
            str[7:0] = "0" + (num % 16'd10);
            //@(posedge sys_clock); Adding this line makes all of str go to 0
        end
    endtask : convd