9. XOR Gate Using Basic Gates

How do you plan to solve it?

// ============================================================
// Basic Gates (given)
// ============================================================
module and_gate(input a, b, output y);
    assign y = a & b;
endmodule

module or_gate(input a, b, output y);
    assign y = a | b;

endmodule

module not_gate(input a, output y);
    assign y = ~a;

endmodule

// ============================================================
// XOR Gate
// ============================================================
module xor_gate (
    input  a, b,
    output y
);
    not_gate nota(a,nota);
    not_gate notb(b,notb);

    and_gate and_anotb(a,notb,y1);
    and_gate and_bnota(nota,b,y2);

    or_gate or_y1y2(y1,y2,y);
    


endmodule