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-- Copyright (C) 2000-2002 The University of Cincinnati.  
-- All rights reserved. 

-- This file is part of VESTs (Vhdl tESTs).

-- UC MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
-- SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
-- OR NON-INFRINGEMENT.  UC SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
-- LICENSEE AS A RESULT OF USING, RESULT OF USING, MODIFYING OR
-- DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.

-- By using or copying this Software, Licensee agrees to abide by the
-- intellectual property laws, and all other applicable laws of the U.S.,
-- and the terms of this license.

-- You may modify, distribute, and use the software contained in this
-- package under the terms of the "GNU GENERAL PUBLIC LICENSE" version 2,
-- June 1991. A copy of this license agreement can be found in the file
-- "COPYING", distributed with this archive.

-- You should have received a copy of the GNU General Public License
-- along with VESTs; if not, write to the Free Software Foundation,
-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

-- ---------------------------------------------------------------------
--
-- $Id: test157.ams,v 1.1 2002-03-27 22:11:19 paw Exp $
-- $Revision: 1.1 $
--
-- ---------------------------------------------------------------------

-- check the implemetatio of ports and generics.

library IEEE;
use IEEE.STD_LOGIC_1164.all;

--entity inv is
--  port (
--    x : in bit;
--    xout : out bit); 
--end inv;
 
--architecture inverter  of inv is
--begin 
 
--  xout <= not x after 100ns ;
 
--end inverter ;

PACKAGE electricalSystem IS
    NATURE electrical IS real ACROSS real THROUGH GROUND reference;
    FUNCTION SIN (X : real ) RETURN real;
    FUNCTION EXP  (X : real ) RETURN real;
END PACKAGE electricalSystem;

use work.electricalSystem.all;

entity resistor is
        generic ( res : real := 10.0 ) ;
        port (terminal P, N : electrical );
end resistor;
 
architecture behav of resistor is
   quantity VPTON across IPTON through P to N;
begin
        res1 : VPTON == IPTON * res ;
end behav;

use work.electricalSystem.all;

ENTITY circuit1 IS
END circuit1;

ARCHITECTURE behavior OF circuit1 IS
--  component inv is
--  port (
--    x : in bit;
--    xout : out bit);
--   end component ;
--   for all : inv use entity work.inv(inverter) ;

   component resistor is
           generic ( res : real := 10.0 ) ;
           port (terminal P, N : electrical );
        end component;
        for all : resistor use entity work.resistor(behav);
 
  terminal n1,n2 : electrical;
  QUANTITY vIn ACROSS iIn THROUGH n1 ;

--  signal y:bit:='0';

BEGIN

--   D2 : inv  port map(x=>y, xout=>y);       

-- testbench:PROCESS
--   BEGIN
--        WAIT ON y;
--    END PROCESS;

  R1 : resistor generic map ( res => 500.0) port map (P => n1, N => n2); 
  R2 : resistor port map (P => n2, N => ground); 
  vsource: vIn == 5.0 * sin(2.0 * 3.14 * 100000.0 * real(time'pos(now)) *  1.0e-15);

END ARCHITECTURE behavior;