107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/*
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* Copyright (c) 1998-2009 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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# include "config.h"
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# include "Module.h"
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# include "PGate.h"
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# include "PWire.h"
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# include <assert.h>
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/* n is a permallocated string. */
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Module::Module(perm_string n)
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: PScope(n)
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{
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library_flag = false;
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is_cell = false;
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uc_drive = UCD_NONE;
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default_nettype = NetNet::NONE;
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timescale_warn_done = false;
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}
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Module::~Module()
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{
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}
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void Module::add_gate(PGate*gate)
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{
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gates_.push_back(gate);
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}
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unsigned Module::port_count() const
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{
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return ports.size();
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}
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/*
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* Return the array of PEIdent object that are at this port of the
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* module. If the port is internally unconnected, return an empty
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* array.
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*/
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const vector<PEIdent*>& Module::get_port(unsigned idx) const
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{
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assert(idx < ports.size());
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static const vector<PEIdent*> zero;
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if (ports[idx])
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return ports[idx]->expr;
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else
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return zero;
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}
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unsigned Module::find_port(const char*name) const
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{
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assert(name != 0);
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for (unsigned idx = 0 ; idx < ports.size() ; idx += 1) {
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if (ports[idx] == 0) {
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/* It is possible to have undeclared ports. These
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are ports that are skipped in the declaration,
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for example like so: module foo(x ,, y); The
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port between x and y is unnamed and thus
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inaccessible to binding by name. */
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continue;
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}
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assert(ports[idx]);
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if (ports[idx]->name == name)
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return idx;
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}
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return ports.size();
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}
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PGate* Module::get_gate(perm_string name)
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{
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for (list<PGate*>::iterator cur = gates_.begin()
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; cur != gates_.end()
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; cur ++ ) {
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if ((*cur)->get_name() == name)
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return *cur;
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}
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return 0;
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}
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const list<PGate*>& Module::get_gates() const
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{
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return gates_;
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}
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