Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

99 lines (86 sloc) 2.872 kb
/*
* Copyright (c) 2002 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
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: eval_attrib.cc,v 1.5 2002/08/12 01:34:59 steve Exp $"
#endif
# include "config.h"
# include "util.h"
# include "PExpr.h"
# include "netlist.h"
# include <iostream>
# include <assert.h>
/*
* The evaluate_attributes function evaluates the attribute
* expressions from the map, and resturns a table in a form suitable
* for passing to netlist devices.
*/
attrib_list_t* evaluate_attributes(const map<string,PExpr*>&att,
unsigned&natt,
const Design*des,
const NetScope*scope)
{
natt = att.size();
if (natt == 0)
return 0;
attrib_list_t*table = new attrib_list_t [natt];
unsigned idx = 0;
typedef map<string,PExpr*>::const_iterator iter_t;
for (iter_t cur = att.begin() ; cur != att.end() ; cur ++, idx++) {
table[idx].key = (*cur).first;
PExpr*exp = (*cur).second;
/* If the attribute value is given in the source, then
evalulate it as a constant. If the value is not
given, then assume the value is 1. */
verinum*tmp;
if (exp)
tmp = exp->eval_const(des, scope);
else
tmp = new verinum(1);
if (tmp == 0)
cerr << "internal error: no result for " << *exp << endl;
assert(tmp);
table[idx].val = *tmp;
delete tmp;
}
assert(idx == natt);
return table;
}
/*
* $Log: eval_attrib.cc,v $
* Revision 1.5 2002/08/12 01:34:59 steve
* conditional ident string using autoconfig.
*
* Revision 1.4 2002/08/10 21:59:39 steve
* The default attribute value is 1.
*
* Revision 1.3 2002/06/06 18:57:18 steve
* Use standard name for iostream.
*
* Revision 1.2 2002/06/03 03:55:14 steve
* compile warnings.
*
* Revision 1.1 2002/05/23 03:08:51 steve
* Add language support for Verilog-2001 attribute
* syntax. Hook this support into existing $attribute
* handling, and add number and void value types.
*
* Add to the ivl_target API new functions for access
* of complex attributes attached to gates.
*
*/
Jump to Line
Something went wrong with that request. Please try again.