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Diffstat (limited to 'testsuite/vests/vhdl-ams/ad-hoc/fromUC/break_stmt/lorenz_chaos.ams')
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diff --git a/testsuite/vests/vhdl-ams/ad-hoc/fromUC/break_stmt/lorenz_chaos.ams b/testsuite/vests/vhdl-ams/ad-hoc/fromUC/break_stmt/lorenz_chaos.ams new file mode 100644 index 000000000..97b3bcc57 --- /dev/null +++ b/testsuite/vests/vhdl-ams/ad-hoc/fromUC/break_stmt/lorenz_chaos.ams @@ -0,0 +1,56 @@ + +-- 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: lorenz_chaos.ams,v 1.1 2002-03-27 22:11:17 paw Exp $ +-- $Revision: 1.1 $ +-- +-- --------------------------------------------------------------------- + +entity LorenzChaos is +end entity LorenzChaos; + +architecture Chaotic of LorenzChaos is + + constant s: real := 10.0; -- define equation parameters s,b,r + constant b: real := 8.0/3.0; + constant r: real := 28.0; + quantity x: real; + quantity y: real; + quantity z: real; + +begin + -- set an initial condition to guarantee chaotic behaviour: + br:break x=> y , y => 5.0, z => 25.0; + br1:break when y'above(25.0); + + -- equation set: + eq1:x == y-(x'dot/s); + eq2:y == r*x-x*z-y'dot; + eq3:z == (x*y -z'dot)/b; + +end architecture Chaotic; |