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/*
* Copyright (c) 1998-2000 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: Module.cc,v 1.25 2004/10/04 01:10:51 steve Exp $"
#endif
# include "config.h"
# include "Module.h"
# include "PGate.h"
# include "PWire.h"
# include <assert.h>
/* n is a permallocated string. */
Module::Module(perm_string n)
: name_(n)
{
default_nettype = NetNet::NONE;
}
Module::~Module()
{
}
void Module::add_gate(PGate*gate)
{
gates_.push_back(gate);
}
void Module::add_task(perm_string name, PTask*task)
{
tasks_[name] = task;
}
void Module::add_function(perm_string name, PFunction *func)
{
funcs_[name] = func;
}
PWire* Module::add_wire(PWire*wire)
{
PWire*&ep = wires_[wire->path()];
if (ep) return ep;
assert(ep == 0);
ep = wire;
return wire;
}
void Module::add_behavior(PProcess*b)
{
behaviors_.push_back(b);
}
unsigned Module::port_count() const
{
return ports.count();
}
/*
* Return the array of PEIdent object that are at this port of the
* module. If the port is internally unconnected, return an empty
* array.
*/
const svector<PEIdent*>& Module::get_port(unsigned idx) const
{
assert(idx < ports.count());
static svector<PEIdent*> zero;
if (ports[idx])
return ports[idx]->expr;
else
return zero;
}
unsigned Module::find_port(const char*name) const
{
assert(name != "");
for (unsigned idx = 0 ; idx < ports.count() ; idx += 1) {
if (ports[idx] == 0) {
/* It is possible to have undeclared ports. These
are ports that are skipped in the declaration,
for example like so: module foo(x ,, y); The
port between x and y is unnamed and thus
inaccessible to binding by name. */
continue;
}
assert(ports[idx]);
if (ports[idx]->name == name)
return idx;
}
return ports.count();
}
PWire* Module::get_wire(const hname_t&name) const
{
map<hname_t,PWire*>::const_iterator obj = wires_.find(name);
if (obj == wires_.end())
return 0;
else
return (*obj).second;
}
PGate* Module::get_gate(perm_string name)
{
for (list<PGate*>::iterator cur = gates_.begin()
; cur != gates_.end()
; cur ++ ) {
if ((*cur)->get_name() == name)
return *cur;
}
return 0;
}
const map<hname_t,PWire*>& Module::get_wires() const
{
return wires_;
}
const list<PGate*>& Module::get_gates() const
{
return gates_;
}
const list<PProcess*>& Module::get_behaviors() const
{
return behaviors_;
}
/*
* $Log: Module.cc,v $
* Revision 1.25 2004/10/04 01:10:51 steve
* Clean up spurious trailing white space.
*
* Revision 1.24 2004/06/13 04:56:53 steve
* Add support for the default_nettype directive.
*
* Revision 1.23 2004/02/20 06:22:56 steve
* parameter keys are per_strings.
*
* Revision 1.22 2004/02/18 17:11:54 steve
* Use perm_strings for named langiage items.
*
* Revision 1.21 2003/04/02 03:00:14 steve
* Cope with empty module ports while binding by name.
*
* Revision 1.20 2003/03/06 04:37:12 steve
* lex_strings.add module names earlier.
*
* Revision 1.19 2002/08/12 01:34:58 steve
* conditional ident string using autoconfig.
*
* Revision 1.18 2002/05/19 23:37:28 steve
* Parse port_declaration_lists from the 2001 Standard.
*
* Revision 1.17 2001/12/03 04:47:14 steve
* Parser and pform use hierarchical names as hname_t
* objects instead of encoded strings.
*
* Revision 1.16 2001/10/20 05:21:51 steve
* Scope/module names are char* instead of string.
*
* Revision 1.15 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 1.14 2000/11/15 20:31:05 steve
* Fix warning about temporaries.
*
* Revision 1.13 2000/11/05 06:05:59 steve
* Handle connectsion to internally unconnected modules (PR#38)
*
* Revision 1.12 2000/05/16 04:05:15 steve
* Module ports are really special PEIdent
* expressions, because a name can be used
* many places in the port list.
*
* Revision 1.11 2000/03/12 17:09:40 steve
* Support localparam.
*
* Revision 1.10 2000/02/23 02:56:53 steve
* Macintosh compilers do not support ident.
*
* Revision 1.9 2000/01/09 20:37:57 steve
* Careful with wires connected to multiple ports.
*
* Revision 1.8 1999/12/11 05:45:41 steve
* Fix support for attaching attributes to primitive gates.
*
* Revision 1.7 1999/09/17 02:06:25 steve
* Handle unconnected module ports.
*
* Revision 1.6 1999/08/04 02:13:02 steve
* Elaborate module ports that are concatenations of
* module signals.
*
* Revision 1.5 1999/08/03 04:14:49 steve
* Parse into pform arbitrarily complex module
* port declarations.
*
* Revision 1.4 1999/07/31 19:14:47 steve
* Add functions up to elaboration (Ed Carter)
*
* Revision 1.3 1999/07/03 02:12:51 steve
* Elaborate user defined tasks.
*
* Revision 1.2 1999/06/17 05:34:42 steve
* Clean up interface of the PWire class,
* Properly match wire ranges.
*
* Revision 1.1 1998/11/03 23:28:51 steve
* Introduce verilog to CVS.
*
*/
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