`timescale 1ns / 1ps

// 2**N to N Priority encoder
module PriorityEncoder #(
    parameter int N = 4
) (
    input logic [2**N - 1:0] data_in,
    output logic [N - 1:0] data_out,
    output logic valid
);
  always_comb begin
    data_out = 'dx;
    for (int i = 0; i < 2 ** N; i++) begin
      if (data_in[i]) data_out = i;
    end
    if (data_in == 0) valid = 0;
    else valid = 1;
  end
endmodule