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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: tick_left.ams,v 1.2 2003-08-05 15:14:24 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+-- A simple RC circuit but both R & C are in between array terminals.
+-- trying to use 'left, 'right, 'low, 'high attributes.
+
+PACKAGE electricalSystem IS
+ subtype voltage is real ;
+ subtype current is real ;
+
+ NATURE electrical IS real ACROSS real THROUGH ground REFERENCE;
+ NATURE electrical_vector is array(natural range<>) of electrical ;
+ subnature el_vect4 is electrical_vector(1 to 2);
+
+ FUNCTION SIN(X : real) RETURN real;
+END PACKAGE electricalSystem;
+
+use work.electricalsystem.all;
+
+--entity declaration
+
+ENTITY RLC IS
+
+END RLC;
+
+--architecture declaration
+
+ARCHITECTURE behavior OF RLC IS
+
+
+ terminal n1: electrical;
+ terminal n2: el_vect4;
+
+ quantity vr1 across ir1 through n1 to n2;
+ quantity vr2 across ir2 through n2 to Ground;
+ quantity vs across n1 ;
+ constant r1 : REAL := 1000.0;
+ constant cap : REAL := 100.0e-9;
+
+BEGIN
+
+res11 : vr1(n2'left) == ir1(n2'left) * r1;
+res12 : vr1(el_vect4'right) == ir1(el_vect4'right) * r1;
+cap11 : ir2(el_vect4'low) == vr2(1)'dot * cap;
+cap12 : ir2(el_vect4'high) == cap * vr2(2)'dot;
+
+vsrc : vs == 5.0 * sin(2.0 * 3.1415 * 15.0 --sine source
+ * real(time'pos(now)) * 1.0e-13);
+
+END architecture behavior;