library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;

package tools_pkg is
  type vector_of_std_logic_vector18 is array (natural range <>) of std_logic_vector(17 downto 0);
  type vector_of_std_logic_vector8 is array (natural range <>) of std_logic_vector(7 downto 0);
  type vector_of_std_logic is array (natural range <>) of std_logic;
  type vector_of_unsigned8 is array (natural range <>) of unsigned(7 downto 0);
  type vector_of_std_logic_vector4 is array (natural range <>) of std_logic_vector(3 downto 0);
end tools_pkg;