-- Copyright (C) 2001-2002 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
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-- 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: test153.ams,v 1.1 2002-03-27 22:11:19 paw Exp $
-- $Revision: 1.1 $
--
-- ---------------------------------------------------------------------

----------------------------------------------------------------------
-- SIERRA REGRESSION TESTING MODEL
-- Develooped at:
-- Distriburted Processing Laboratory
-- University of Cincinnati
----------------------------------------------------------------------
-- File          : test153.ams
-- Author(s)     : Geeta Balarkishnan(gbalakri@ececs.uc.edu)
-- Created       : May 2001
----------------------------------------------------------------------
-- Description :
----------------------------------------------------------------------
-- A simple model which has a voltage source. 
-- The output voltage Vout is dependent on the value of vS at that point
-- of time. If the voltage is below Vref, the output is a 1 else output is
-- a 0.  the test is done for checking the correct implementation of the
-- simple simultaneous if statement.it checks nature declaration, terminal
-- and quantity declarations. 


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 test is
end entity;

architecture atest of test is
terminal T1,T2:electrical;
quantity VS across T1;
quantity Vout: real;
constant Vref:real:=5.0;
begin

esource: VS == 5.0 * sin(2.0 *3.141592 *10000.0 * real(time'pos(now))*1.0e-12);

if (VS <= Vref) use
e1:	Vout == 1.0;
else 
e2:	Vout == 0.0;
end use;

end architecture atest;