64. Full Adder

How do you plan to solve it?

// Half Adder primitive
module half_adder (
    input  a, b,
    output sum, carry
);
    // Write code here
    assign sum = a ^ b;
    assign carry = a & b;
endmodule

// Full Adder using 2 Half Adders
module full_adder_struct (
    input  a, b, cin,
    output sum, cout
);
    // Write code here
    wire w0, w1, w2;
    half_adder ha_0(a, b, w0, w1);
    half_adder ha_1(w0, cin, sum, w2);
    assign cout = w1 | w2;

endmodule