//2023-8-26, ()
//inverter_8bits,(8λ)

module inv(
            A,
            Y
          );

input[7:0]       A;
output[7:0]      Y;

assign      Y=~A;

endmodule


//-----testbench-----

module tb_inv();

reg[7:0]               a;
wire[7:0]              y;

initial begin
               a<=00000000;
        #10    a<=00000001;
        #10    a<=00000011;
        #10    a<=00000111;
        #10    a<=00001111;
        #10    a<=00011111;
        #10    a<=00111111;
        #10    a<=01111111;
        #10    a<=11111111;
        $stop;
end
inv c_inv(
               .A(a),
               .Y(y)
          );


endmodule