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iverilog
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Support null target for generating no output.

This commit is contained in:
steve 1999-01-24 01:35:08 +00:00
parent d1e2b036fc
commit 3d2993be0a
4 changed files with 47 additions and 4 deletions
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2
Makefile
View File

@ -6,7 +6,7 @@ CXXFLAGS = -O -g -Wall -Wno-uninitialized
mv $*.d dep/$*.d
#TT = t-debug.o t-vvm.o
TT = t-verilog.o t-vvm.o t-xnf.o
TT = t-null.o t-verilog.o t-vvm.o t-xnf.o
FF = nobufz.o propinit.o sigfold.o stupid.o xnfio.o
O = main.o cprop.o design_dump.o elaborate.o emit.o eval.o lexor.o mangle.o \

7
main.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: main.cc,v 1.11 1998/12/20 02:05:41 steve Exp $"
#ident "$Id: main.cc,v 1.12 1999/01/24 01:35:36 steve Exp $"
#endif
# include <stdio.h>
@ -32,7 +32,7 @@
extern void pform_parse();
const char*target = "verilog";
const char*target = "null";
string start_module = "";
map<string,string> flags;
@ -224,6 +224,9 @@ int main(int argc, char*argv[])
/*
* $Log: main.cc,v $
* Revision 1.12 1999/01/24 01:35:36 steve
* Support null target for generating no output.
*
* Revision 1.11 1998/12/20 02:05:41 steve
* Function to calculate wire initial value.
*

35
t-null.cc Normal file
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@ -0,0 +1,35 @@
/*
* Copyright (c) 1999 Stephen Williams (steve@icarus.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
*/
#if !defined(WINNT)
#ident "$Id: t-null.cc,v 1.1 1999/01/24 01:35:08 steve Exp $"
#endif
# include "netlist.h"
# include "target.h"
static target_t target_null_obj;
extern const struct target tgt_null = { "null", &target_null_obj };
/*
* $Log: t-null.cc,v $
* Revision 1.1 1999/01/24 01:35:08 steve
* Support null target for generating no output.
*
*/

7
targets.cc
View File

@ -17,16 +17,18 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: targets.cc,v 1.2 1998/11/16 05:03:53 steve Exp $"
#ident "$Id: targets.cc,v 1.3 1999/01/24 01:35:36 steve Exp $"
#endif
# include "target.h"
extern const struct target tgt_null;
extern const struct target tgt_verilog;
extern const struct target tgt_vvm;
extern const struct target tgt_xnf;
const struct target *target_table[] = {
&tgt_null,
&tgt_verilog,
&tgt_vvm,
&tgt_xnf,
@ -35,6 +37,9 @@ const struct target *target_table[] = {
/*
* $Log: targets.cc,v $
* Revision 1.3 1999/01/24 01:35:36 steve
* Support null target for generating no output.
*
* Revision 1.2 1998/11/16 05:03:53 steve
* Add the sigfold function that unlinks excess
* signal nodes, and add the XNF target.