-- package containing hardware-oriented spec types

library IEEE;
  use IEEE.std_logic_1164.all;

package reg_file_pkg is

  constant depth : integer := 32;
  constant data_width : integer := 8;

  function log_2 (x : positive) return natural;

  type std_logic_2D_array  is array (integer range <>, integer range <>) of std_logic;

end reg_file_pkg;

package body reg_file_pkg is

  function log_2 (x : positive) return natural is
  begin
    if x <= 1 then
      return 0;
    else
      return log_2 (x / 2) + 1;
    end if;
  end function log_2;


end package body reg_file_pkg;