?? gh_compare.vhd
字號:
-----------------------------------------------------------------------------
-- Filename: gh_compare.vhd
--
-- Description:
-- a standard, basic Comparator
--
-- Copyright (c) 2005 by George Huber
-- an OpenCores.org Project
-- free to use, but see documentation for conditions
--
-- Revision History:
-- Revision Date Author Comment
-- -------- ---------- -------- -----------
-- 1.0 10/08/05 G Huber Initial revision
--
-----------------------------------------------------------------------------
LIBRARY ieee;
USE ieee.std_logic_1164.all;
ENTITY gh_compare IS
GENERIC (size: INTEGER := 8);
PORT(
A : IN STD_LOGIC_VECTOR(size-1 DOWNTO 0);
B : IN STD_LOGIC_VECTOR(size-1 DOWNTO 0);
AGB : out STD_LOGIC;
AEB : out STD_LOGIC;
ALB : out STD_LOGIC
);
END gh_compare;
ARCHITECTURE a OF gh_compare IS
BEGIN
AGB <= '1' when (A > B) else
'0';
AEB <= '1' when (A = B) else
'0';
ALB <= '1' when (A < B) else
'0';
END a;
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