Popcount3

Problem Statement

A "population count" circuit counts the number of '1's in an input vector. Build a population count circuit for a 3-bit input vector.

module top_module( 
    input [2:0] in,
    output [1:0] out );
    
    always @(in)begin
        out = 2'b00;
        
        for(integer i = 0; i<3; i++)
            begin
                if(in[i] == 1'b1)
                    out = out + 1'b1;
            end
        end
    
endmodule