81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/*
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* Copyright (c) 1999 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#if !defined(WINNT)
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#ident "$Id: t-null.cc,v 1.8 1999/10/05 03:26:37 steve Exp $"
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#endif
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# include "netlist.h"
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# include "target.h"
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/*
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* This target type simply drops the netlist. It is useful for
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* skipping the code generation phase.
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*/
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static class target_null_t : public target_t {
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public:
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void bufz(ostream&os, const NetBUFZ*) { }
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void memory(ostream&, const NetMemory*) { }
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void task_def(ostream&, const NetTaskDef*) { }
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void net_assign(ostream&os, const NetAssign*) { }
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void net_assign_nb(ostream&os, const NetAssignNB*) { }
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void net_esignal(ostream&, const NetESignal*) { }
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void net_event(ostream&, const NetNEvent*) { }
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bool proc_block(ostream&, const NetBlock*) { return true; }
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void proc_condit(ostream&, const NetCondit*) { }
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void proc_delay(ostream&, const NetPDelay*) { }
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void proc_event(ostream&, const NetPEvent*) { }
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void proc_forever(ostream&, const NetForever*) { }
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void proc_repeat(ostream&, const NetRepeat*) { }
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void proc_stask(ostream&, const NetSTask*) { }
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void proc_utask(ostream&os, const NetUTask*) { }
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} target_null_obj;
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extern const struct target tgt_null = { "null", &target_null_obj };
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/*
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* $Log: t-null.cc,v $
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* Revision 1.8 1999/10/05 03:26:37 steve
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* null target ignore assignment nodes.
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*
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* Revision 1.7 1999/09/30 21:27:29 steve
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* Ignore user task definitions.
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*
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* Revision 1.6 1999/09/22 16:57:24 steve
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* Catch parallel blocks in vvm emit.
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*
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* Revision 1.5 1999/09/17 02:06:26 steve
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* Handle unconnected module ports.
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*
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* Revision 1.4 1999/07/03 02:12:52 steve
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* Elaborate user defined tasks.
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*
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* Revision 1.3 1999/06/19 21:06:16 steve
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* Elaborate and supprort to vvm the forever
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* and repeat statements.
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*
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* Revision 1.2 1999/06/06 20:33:30 steve
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* implement some null-target code generation.
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*
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* Revision 1.1 1999/01/24 01:35:08 steve
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* Support null target for generating no output.
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*
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*/
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