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 c, d, e, f;
    not_gate ka(a, c);
    not_gate fa(b, d);

    and_gate ja(a, d, e);
    and_gate la(b, c, f);
    or_gate ha(e, f, y);
    // TODO: instantiate required gates

endmodule