Package Example

LIBRARY ieee;

USE ieee.std_logic_1164.all;

PACKAGE filt_cmp IS

TYPE state_type IS (idle, tap1, tap2, tap3, tap4);

COMPONENT acc

port(xh : in std_logic_vector(10 downto 0);

clk, first: in std_logic;

yn : out std_logic_vector(11 downto 4));

END COMPONENT;

FUNCTION compare (variable a , b : integer) RETURN boolean;

END filt_cmp;

PACKAGE BODY filt_cmp IS

FUNCTION compare (variable a , b : integer) IS

VARIABLE temp : boolean;

Begin

If a < b then

temp := true ;

else

temp := false ;

end if;

RETURN temp ;

END compare ;

END fily_cmp ;

Package Declaration

Package Body