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net_force.cc
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net_force.cc
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/*
* Copyright (c) 2000-2004 Stephen Williams (steve@picturel.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: net_force.cc,v 1.13 2004/12/11 02:31:26 steve Exp $"
#endif
# include "config.h"
# include "compiler.h"
/*
* This file contains implementation of the NetForce, NetRelease,
* NetCAssign and NetDeassign classes. These are similar or related in
* that they handle the procedural continuous assign and force
* statements.
*/
# include "netlist.h"
# include <assert.h>
/*
* $Log: net_force.cc,v $
* Revision 1.13 2004/12/11 02:31:26 steve
* Rework of internals to carry vectors through nexus instead
* of single bits. Make the ivl, tgt-vvp and vvp initial changes
* down this path.
*
* Revision 1.12 2004/02/18 17:11:56 steve
* Use perm_strings for named langiage items.
*
* Revision 1.11 2003/03/06 00:28:41 steve
* All NetObj objects have lex_string base names.
*
* Revision 1.10 2003/01/27 05:09:17 steve
* Spelling fixes.
*
* Revision 1.9 2002/08/19 00:06:12 steve
* Allow release to handle removal of target net.
*
* Revision 1.8 2002/08/12 01:34:59 steve
* conditional ident string using autoconfig.
*
* Revision 1.7 2002/01/19 19:02:08 steve
* Pass back target errors processing conditionals.
*
* Revision 1.6 2001/11/14 03:28:49 steve
* DLL target support for force and release.
*
* Revision 1.5 2001/10/31 05:24:52 steve
* ivl_target support for assign/deassign.
*
* Revision 1.4 2001/10/28 01:14:53 steve
* NetObj constructor finally requires a scope.
*
* Revision 1.3 2001/07/25 03:10:49 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)
*
* Revision 1.2 2000/05/12 01:22:41 steve
* NetCAssign needs to incr_eref its lval to lock it down.
*
* Revision 1.1 2000/05/11 23:37:27 steve
* Add support for procedural continuous assignment.
*
*/