module enc83_tb();
    logic [7:0] d;
    logic [2:0] y;
    enc83 uut(d,y);
    initial
    begin
    d = 8'b00000001;
    #10 d = 8'b00000010;
    #10 d = 8'b00000100;
    #10 d = 8'b00001000;
    #10 d = 8'b00010000;
    #10 d = 8'b00100000;
    #10 d = 8'b01000000;
    #10 d = 8'b10000000;
    #10
    $finish;
    end
endmodule