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
);
    wire x,x1,w,z;
    not_gate n1(b,x1);
    not_gate n2(a,x);
    and_gate a1(a,x1,w);
    and_gate a2(x,b,z);
    or_gate o1(w,z,y);





endmodule