------------------------------------------------------------------------------- -- Copyright (c) 2003 Mentor Graphics Corporation -- -- This model is a component of the Mentor Graphics VHDL-AMS educational open -- source model library, and is covered by this license agreement. This model, -- including any updates, modifications, revisions, copies, and documentation -- are copyrighted works of Mentor Graphics. USE OF THIS MODEL INDICATES YOUR -- COMPLETE AND UNCONDITIONAL ACCEPTANCE OF THE TERMS AND CONDITIONS SET FORTH -- IN THIS LICENSE AGREEMENT. Mentor Graphics grants you a non-exclusive -- license to use, reproduce, modify and distribute this model, provided that: -- (a) no fee or other consideration is charged for any distribution except -- compilations distributed in accordance with Section (d) of this license -- agreement; (b) the comment text embedded in this model is included verbatim -- in each copy of this model made or distributed by you, whether or not such -- version is modified; (c) any modified version must include a conspicuous -- notice that this model has been modified and the date of modification; and -- (d) any compilations sold by you that include this model must include a -- conspicuous notice that this model is available from Mentor Graphics in its -- original form at no charge. -- -- THIS MODEL IS LICENSED TO YOU "AS IS" AND WITH NO WARRANTIES, EXPRESS OR -- IMPLIED. MENTOR GRAPHICS SPECIFICALLY DISCLAIMS ALL IMPLIED WARRANTIES OF -- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. MENTOR GRAPHICS SHALL -- HAVE NO RESPONSIBILITY FOR ANY DAMAGES WHATSOEVER. ------------------------------------------------------------------------------- -- File : xnor2.vhd -- Author : Mentor Graphics -- Created : 2003-03-28 -- Last update: 2003-03-28 ------------------------------------------------------------------------------- -- Description: Two input XNOR gate ------------------------------------------------------------------------------- -- Revisions : -- Date Version Author Description -- 2003-03-28 1.0 Mentor Graphics Created ------------------------------------------------------------------------------- library ieee; use ieee.std_logic_1164.all; entity xnor2 is generic ( delay : time := 0 ns); -- Delay time port ( in1, in2 : in std_logic; output : out std_logic); end entity xnor2; architecture ideal of xnor2 is begin output <= in1 xnor in2 after delay; end architecture ideal; ------------------------------------------------------------------------------- -- Copyright (c) 2003 Mentor Graphics Corporation -------------------------------------------------------------------------------