Adder100i

Create a 100-bit binary ripple-carry adder by instantiating 100 full adders. The adder adds two 100-bit numbers and a carry-in to produce a 100-bit sum and carry out. To encourage you to actually instantiate full adders, also output the carry-out from each full adder in the ripple-carry adder. cout[99] is the final carry-out from the last full adder, and is the carry-out you usually see.

module top_module( 
    input [99:0] a, b,
    input cin,
    output [99:0] cout,
    output [99:0] sum );
    
    assign sum[0] = a[0] ^ b[0] ^ cin;
    assign cout[0] = (a[0] & b[0]) | (a[0] & cin) | (b[0] & cin);
    
    always @(*)begin
        for(integer i = 1; i< 100; i++)begin
            sum[i] <= a[i] ^ b[i] ^ cout[i-1];
            cout[i] <= (a[i] & b[i]) | (a[i] & cout[i-1]) | (b[i] & cout[i-1]);
        end
        
    end 
  
endmodule