/*
    Adder de N bits
*/
`include "./full_adder/full_adder.v"

module adder_nbit #(parameter N = 8)(
    input [N-1:0] a,
    input [N-1:0] b,
    input carry_in,
    output [N-1:0] sum,
    output carry_out
);
    wire [N:0] carry;

    assign carry[0] = carry_in;

    genvar i;
    generate
        for (i = 0; i < N; i = i + 1) begin: generar_full_adder
            full_adder_structural full_adder(
                .carry_in(carry[i]),
                .a(a[i]),
                .b(b[i]),
                .sum(sum[i]),
                .carry_out(carry[i+1])
            );            
        end
    endgenerate

    assign carry_out = carry[N];

endmodule