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/*
* 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) && !defined(macintosh)
#ident "$Id: PWire.cc,v 1.1 2000/12/21 21:57:13 jrandrews Exp $"
#endif
# include "PWire.h"
# include <assert.h>
PWire::PWire(const string&n, NetNet::Type t, NetNet::PortType pt)
: name_(n), type_(t), port_type_(pt), lidx_(0), ridx_(0)
{
}
NetNet::Type PWire::get_wire_type() const
{
return type_;
}
bool PWire::set_wire_type(NetNet::Type t)
{
assert(t != NetNet::IMPLICIT);
switch (type_) {
case NetNet::IMPLICIT:
type_ = t;
return true;
case NetNet::IMPLICIT_REG:
if (t == NetNet::REG) { type_ = t; return true; }
if (t == NetNet::INTEGER) {type_ = t; return true; }
return false;
case NetNet::REG:
if (t == NetNet::REG) return true;
if (t == NetNet::INTEGER) {type_ = t; return true; }
return false;
default:
if (type_ != t)
return false;
else
return true;
}
}
NetNet::PortType PWire::get_port_type() const
{
return port_type_;
}
bool PWire::set_port_type(NetNet::PortType pt)
{
assert(pt != NetNet::NOT_A_PORT);
assert(pt != NetNet::PIMPLICIT);
switch (port_type_) {
case NetNet::PIMPLICIT:
port_type_ = pt;
return true;
case NetNet::NOT_A_PORT:
return false;
default:
if (port_type_ != pt)
return false;
else
return true;
}
}
void PWire::set_range(PExpr*m, PExpr*l)
{
msb_ = svector<PExpr*>(msb_,m);
lsb_ = svector<PExpr*>(lsb_,l);
}
void PWire::set_memory_idx(PExpr*ldx, PExpr*rdx)
{
assert(lidx_ == 0);
assert(ridx_ == 0);
assert((type_ == NetNet::REG) || (type_ == NetNet::INTEGER));
lidx_ = ldx;
ridx_ = rdx;
}
/*
* $Log: PWire.cc,v $
* Revision 1.1 2000/12/21 21:57:13 jrandrews
* initial import
*
* Revision 1.3 2000/02/23 02:56:54 steve
* Macintosh compilers do not support ident.
*
* Revision 1.2 1999/09/10 05:02:09 steve
* Handle integers at task parameters.
*
* Revision 1.1 1999/06/17 05:34:42 steve
* Clean up interface of the PWire class,
* Properly match wire ranges.
*
*/