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PWire.cc
178 lines (159 loc) · 4.11 KB
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PWire.cc
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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
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: PWire.cc,v 1.10 2002/08/12 01:34:58 steve Exp $"
#endif
# include "config.h"
# include "PWire.h"
# include <assert.h>
PWire::PWire(const hname_t&n, NetNet::Type t, NetNet::PortType pt)
: hname_(n), type_(t), port_type_(pt), signed_(false), isint_(false),
lidx_(0), ridx_(0)
{
if (t == NetNet::INTEGER) {
type_ = NetNet::REG;
signed_ = true;
isint_ = true;
}
}
PWire::PWire(char*n, NetNet::Type t, NetNet::PortType pt)
: hname_(n), type_(t), port_type_(pt), signed_(false), isint_(false),
lidx_(0), ridx_(0)
{
if (t == NetNet::INTEGER) {
type_ = NetNet::REG;
signed_ = true;
isint_ = true;
}
}
NetNet::Type PWire::get_wire_type() const
{
return type_;
}
const hname_t& PWire::path() const
{
return hname_;
}
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; }
return false;
case NetNet::REG:
if (t == NetNet::INTEGER) {
isint_ = true;
return true;
}
if (t == NetNet::REG) 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_signed(bool flag)
{
signed_ = flag;
}
bool PWire::get_signed() const
{
return signed_;
}
bool PWire::get_isint() const
{
return isint_;
}
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);
lidx_ = ldx;
ridx_ = rdx;
}
/*
* $Log: PWire.cc,v $
* Revision 1.10 2002/08/12 01:34:58 steve
* conditional ident string using autoconfig.
*
* Revision 1.9 2002/06/21 04:59:35 steve
* Carry integerness throughout the compilation.
*
* Revision 1.8 2002/01/26 05:28:28 steve
* Detect scalar/vector declarion mismatch.
*
* Revision 1.7 2001/12/03 04:47:14 steve
* Parser and pform use hierarchical names as hname_t
* objects instead of encoded strings.
*
* Revision 1.6 2001/07/25 03:10:48 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)
*
* Revision 1.5 2001/01/06 02:29:35 steve
* Support arrays of integers.
*
* Revision 1.4 2000/12/11 00:31:43 steve
* Add support for signed reg variables,
* simulate in t-vvm signed comparisons.
*
* 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.
*
*/