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pform_dump.cc
1069 lines (946 loc) · 26.6 KB
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pform_dump.cc
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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
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: pform_dump.cc,v 1.70 2002/04/21 04:59:08 steve Exp $"
#endif
# include "config.h"
/*
* This file provides the pform_dump function, that dumps the module
* passed as a parameter. The dump is as much as possible in Verilog
* syntax, so that a human can tell that it really does describe the
* module in question.
*/
# include "pform.h"
# include "PEvent.h"
# include <iostream>
# include <iomanip>
# include <typeinfo>
ostream& operator << (ostream&out, const PExpr&obj)
{
obj.dump(out);
return out;
}
ostream& operator << (ostream&o, const PDelays&d)
{
d.dump_delays(o);
return o;
}
ostream& operator<< (ostream&o, PGate::strength_t str)
{
switch (str) {
case PGate::HIGHZ:
o << "highz";
break;
case PGate::WEAK:
o << "weak";
break;
case PGate::PULL:
o << "pull";
break;
case PGate::STRONG:
o << "strong";
break;
case PGate::SUPPLY:
o << "supply";
break;
default:
assert(0);
}
return o;
}
void PExpr::dump(ostream&out) const
{
out << typeid(*this).name();
}
void PEConcat::dump(ostream&out) const
{
if (repeat_)
out << "{" << *repeat_;
if (parms_.count() == 0) {
out << "{}";
return;
}
out << "{";
if (parms_[0]) out << *parms_[0];
for (unsigned idx = 1 ; idx < parms_.count() ; idx += 1) {
out << ", ";
if (parms_[idx]) out << *parms_[idx];
}
out << "}";
if (repeat_) out << "}";
}
void PECallFunction::dump(ostream &out) const
{
out << path_ << "(";
if (parms_.count() > 0) {
if (parms_[0]) parms_[0]->dump(out);
for (unsigned idx = 1; idx < parms_.count(); ++idx) {
out << ", ";
if (parms_[idx]) parms_[idx]->dump(out);
}
}
out << ")";
}
void PEEvent::dump(ostream&out) const
{
switch (type_) {
case PEEvent::ANYEDGE:
break;
case PEEvent::POSEDGE:
out << "posedge ";
break;
case PEEvent::NEGEDGE:
out << "negedge ";
break;
case PEEvent::POSITIVE:
out << "positive ";
break;
}
out << *expr_;
}
void PEFNumber::dump(ostream &out) const
{
out << value();
}
void PENumber::dump(ostream&out) const
{
out << value();
}
void PEIdent::dump(ostream&out) const
{
out << path_;
if (msb_) {
out << "[" << *msb_;
if (lsb_) {
out << ":" << *lsb_;
}
out << "]";
}
}
void PEString::dump(ostream&out) const
{
out << "\"" << text_ << "\"";
}
void PETernary::dump(ostream&out) const
{
out << "(" << *expr_ << ")?(" << *tru_ << "):(" << *fal_ << ")";
}
void PEUnary::dump(ostream&out) const
{
out << op_ << "(" << *expr_ << ")";
}
void PEBinary::dump(ostream&out) const
{
out << "(" << *left_ << ")";
switch (op_) {
case 'a':
out << "&&";
break;
case 'e':
out << "==";
break;
case 'E':
out << "===";
break;
case 'l':
out << "<<";
break;
case 'n':
out << "!=";
break;
case 'N':
out << "!==";
break;
case 'r':
out << ">>";
break;
default:
out << op_;
break;
}
out << "(" << *right_ << ")";
}
void PWire::dump(ostream&out) const
{
out << " " << type_;
switch (port_type_) {
case NetNet::PIMPLICIT:
out << " (implicit input)";
break;
case NetNet::PINPUT:
out << " (input)";
break;
case NetNet::POUTPUT:
out << " (output)";
break;
case NetNet::PINOUT:
out << " (input output)";
break;
case NetNet::NOT_A_PORT:
break;
}
if (signed_) {
out << " signed";
}
assert(msb_.count() == lsb_.count());
for (unsigned idx = 0 ; idx < msb_.count() ; idx += 1) {
if (msb_[idx] == 0) {
assert(lsb_[idx] == 0);
out << " <scalar>";
} else {
if (lsb_[idx])
out << " [" << *msb_[idx] << ":" << *lsb_[idx] << "]";
else
out << " [" << *msb_[idx] << "]";
}
}
out << " " << hname_;
// If the wire has indices, dump them.
if (lidx_ || ridx_) {
out << "[";
if (lidx_) out << *lidx_;
if (ridx_) out << ":" << *ridx_;
out << "]";
}
out << ";" << endl;
for (map<string,string>::const_iterator idx = attributes.begin()
; idx != attributes.end()
; idx ++) {
out << " " << (*idx).first << " = \"" <<
(*idx).second << "\"" << endl;
}
}
void PGate::dump_pins(ostream&out) const
{
if (pin_count()) {
if (pin(0)) out << *pin(0);
for (unsigned idx = 1 ; idx < pin_count() ; idx += 1) {
out << ", ";
if (pin(idx)) out << *pin(idx);
}
}
}
void PDelays::dump_delays(ostream&out) const
{
if (delay_[0] && delay_[1] && delay_[2])
out << "#(" << *delay_[0] << "," << *delay_[1] << "," <<
*delay_[2] << ")";
else if (delay_[0])
out << "#" << *delay_[0];
else
out << "#0";
}
void PGate::dump_delays(ostream&out) const
{
delay_.dump_delays(out);
}
void PGate::dump(ostream&out) const
{
out << " " << typeid(*this).name() << " ";
delay_.dump_delays(out);
out << " " << get_name() << "(";
dump_pins(out);
out << ");" << endl;
}
void PGAssign::dump(ostream&out) const
{
out << " assign (" << strength0() << "0 " << strength1() << "1) ";
dump_delays(out);
out << " " << *pin(0) << " = " << *pin(1) << ";" << endl;
}
void PGBuiltin::dump(ostream&out) const
{
switch (type()) {
case PGBuiltin::BUFIF0:
out << " bufif0 ";
break;
case PGBuiltin::BUFIF1:
out << " bufif1 ";
break;
case PGBuiltin::NOTIF0:
out << " bufif0 ";
break;
case PGBuiltin::NOTIF1:
out << " bufif1 ";
break;
case PGBuiltin::NAND:
out << " nand ";
break;
case PGBuiltin::NMOS:
out << " nmos ";
break;
case PGBuiltin::RNMOS:
out << " rnmos ";
break;
case PGBuiltin::RPMOS:
out << " rpmos ";
break;
case PGBuiltin::PMOS:
out << " pmos ";
break;
default:
out << " builtin gate ";
}
out << "(" << strength0() << "0 " << strength1() << "1) ";
dump_delays(out);
out << " " << get_name();
if (msb_) {
out << " [" << *msb_ << ":" << *lsb_ << "]";
}
out << "(";
dump_pins(out);
out << ");" << endl;
}
void PGModule::dump(ostream&out) const
{
out << " " << type_ << " ";
// If parameters are overridden by order, dump them.
if (overrides_) {
assert(parms_ == 0);
out << "#(";
out << *((*overrides_)[0]);
for (unsigned idx = 1 ; idx < overrides_->count() ; idx += 1) {
out << "," << *((*overrides_)[idx]);
}
out << ") ";
}
// If parameters are overridden by name, dump them.
if (parms_) {
assert(overrides_ == 0);
out << "#(";
out << "." << parms_[0].name << "(" << *parms_[0].parm << ")";
for (unsigned idx = 1 ; idx < nparms_ ; idx += 1) {
out << ", ." << parms_[idx].name << "(" <<
*parms_[idx].parm << ")";
}
out << ") ";
}
out << get_name();
// If the module is arrayed, print the index expressions.
if (msb_ || lsb_) {
out << "[";
if (msb_) out << *msb_;
out << ":";
if (lsb_) out << *lsb_;
out << "]";
}
out << "(";
if (pins_) {
out << "." << pins_[0].name << "(";
if (pins_[0].parm) out << *pins_[0].parm;
out << ")";
for (unsigned idx = 1 ; idx < npins_ ; idx += 1) {
out << ", ." << pins_[idx].name << "(";
if (pins_[idx].parm)
out << *pins_[idx].parm;
out << ")";
}
} else {
dump_pins(out);
}
out << ");" << endl;
}
void Statement::dump(ostream&out, unsigned ind) const
{
/* I give up. I don't know what type this statement is,
so just print the C++ typeid and let the user figure
it out. */
out << setw(ind) << "";
out << "/* " << get_line() << ": " << typeid(*this).name()
<< " */ ;" << endl;
}
void PAssign::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "";
out << *lval() << " = " << delay_ << " " << *rval() << ";";
out << " /* " << get_line() << " */" << endl;
}
void PAssignNB::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "";
out << *lval() << " <= " << delay_ << " " << *rval() << ";";
out << " /* " << get_line() << " */" << endl;
}
void PBlock::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "begin";
if (name_.length())
out << " : " << name_;
out << endl;
for (unsigned idx = 0 ; idx < list_.count() ; idx += 1) {
if (list_[idx])
list_[idx]->dump(out, ind+2);
else
out << setw(ind+2) << "" << "/* NOOP */ ;" << endl;
}
out << setw(ind) << "" << "end" << endl;
}
void PCallTask::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << path_;
if (parms_.count() > 0) {
out << "(";
if (parms_[0])
out << *parms_[0];
for (unsigned idx = 1 ; idx < parms_.count() ; idx += 1) {
out << ", ";
if (parms_[idx])
out << *parms_[idx];
}
out << ")";
}
out << "; /* " << get_line() << " */" << endl;
}
void PCase::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "";
switch (type_) {
case NetCase::EQ:
out << "case";
break;
case NetCase::EQX:
out << "casex";
break;
case NetCase::EQZ:
out << "casez";
break;
}
out << " (" << *expr_ << ") /* " << get_line() << " */" << endl;
for (unsigned idx = 0 ; idx < items_->count() ; idx += 1) {
PCase::Item*cur = (*items_)[idx];
if (cur->expr.count() == 0) {
out << setw(ind+2) << "" << "default:";
} else {
out << setw(ind+2) << "" << *cur->expr[0];
for(unsigned e = 1 ; e < cur->expr.count() ; e += 1)
out << ", " << *cur->expr[e];
out << ":";
}
if (cur->stat) {
out << endl;
cur->stat->dump(out, ind+6);
} else {
out << " ;" << endl;
}
}
out << setw(ind) << "" << "endcase" << endl;
}
void PCondit::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "if (" << *expr_ << ")" << endl;
if (if_)
if_->dump(out, ind+3);
else
out << setw(ind) << ";" << endl;
if (else_) {
out << setw(ind) << "" << "else" << endl;
else_->dump(out, ind+3);
}
}
void PCAssign::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "assign " << *lval_ << " = " << *expr_
<< "; /* " << get_line() << " */" << endl;
}
void PDeassign::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "deassign " << *lval_ << "; /* "
<< get_line() << " */" << endl;
}
void PDelayStatement::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "#" << *delay_ << " /* " <<
get_line() << " */";
if (statement_) {
out << endl;
statement_->dump(out, ind+2);
} else {
out << " /* noop */;" << endl;
}
}
void PDisable::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "disable " << scope_ << "; /* "
<< get_line() << " */" << endl;
}
void PEventStatement::dump(ostream&out, unsigned ind) const
{
if (expr_.count() == 0) {
out << setw(ind) << "" << "@* ";
} else {
out << setw(ind) << "" << "@(" << *(expr_[0]);
if (expr_.count() > 1)
for (unsigned idx = 1 ; idx < expr_.count() ; idx += 1)
out << " or " << *(expr_[idx]);
out << ")";
}
if (statement_) {
out << endl;
statement_->dump(out, ind+2);
} else {
out << " ;" << endl;
}
}
void PForce::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "force " << *lval_ << " = " << *expr_
<< "; /* " << get_line() << " */" << endl;
}
void PForever::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "forever /* " << get_line() << " */" << endl;
statement_->dump(out, ind+3);
}
void PForStatement::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "for (" << *name1_ << " = " << *expr1_
<< "; " << *cond_ << "; " << *name2_ << " = " << *expr2_ <<
")" << endl;
statement_->dump(out, ind+3);
}
void PFunction::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "output " << out_->path() << ";" << endl;
if (ports_)
for (unsigned idx = 0 ; idx < ports_->count() ; idx += 1) {
out << setw(ind) << "";
out << "input ";
out << (*ports_)[idx]->path() << ";" << endl;
}
if (statement_)
statement_->dump(out, ind);
else
out << setw(ind) << "" << "/* NOOP */" << endl;
}
void PRelease::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "release " << *lval_ << "; /* "
<< get_line() << " */" << endl;
}
void PRepeat::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "repeat (" << *expr_ << ")" << endl;
statement_->dump(out, ind+3);
}
void PTask::dump(ostream&out, unsigned ind) const
{
if (ports_)
for (unsigned idx = 0 ; idx < ports_->count() ; idx += 1) {
out << setw(ind) << "";
switch ((*ports_)[idx]->get_port_type()) {
case NetNet::PINPUT:
out << "input ";
break;
case NetNet::POUTPUT:
out << "output ";
break;
case NetNet::PINOUT:
out << "inout ";
break;
}
out << (*ports_)[idx]->path() << ";" << endl;
}
if (statement_)
statement_->dump(out, ind);
else
out << setw(ind) << "" << "/* NOOP */" << endl;
}
void PTrigger::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "-> " << event_ << ";" << endl;
}
void PWhile::dump(ostream&out, unsigned ind) const
{
out << setw(ind) << "" << "while (" << *cond_ << ")" << endl;
statement_->dump(out, ind+3);
}
void PProcess::dump(ostream&out, unsigned ind) const
{
switch (type_) {
case PProcess::PR_INITIAL:
out << setw(ind) << "" << "initial";
break;
case PProcess::PR_ALWAYS:
out << setw(ind) << "" << "always";
break;
}
out << " /* " << get_line() << " */" << endl;
statement_->dump(out, ind+2);
}
void Module::dump(ostream&out) const
{
out << "module " << name_ << ";" << endl;
for (unsigned idx = 0 ; idx < ports_.count() ; idx += 1) {
port_t*cur = ports_[idx];
if (cur == 0) {
out << " unconnected" << endl;
continue;
}
out << " ." << cur->name << "(" << *cur->expr[0];
for (unsigned wdx = 1 ; wdx < cur->expr.count() ; wdx += 1) {
out << ", " << *cur->expr[wdx];
}
out << ")" << endl;
}
typedef map<string,PExpr*>::const_iterator parm_iter_t;
typedef map<hname_t,PExpr*>::const_iterator parm_hiter_t;
for (parm_iter_t cur = parameters.begin()
; cur != parameters.end() ; cur ++) {
out << " parameter " << (*cur).first << " = ";
if ((*cur).second)
out << *(*cur).second << ";" << endl;
else
out << "/* ERROR */;" << endl;
}
for (parm_iter_t cur = localparams.begin()
; cur != localparams.end() ; cur ++) {
out << " localparam " << (*cur).first << " = ";
if ((*cur).second)
out << *(*cur).second << ";" << endl;
else
out << "/* ERROR */;" << endl;
}
for (parm_hiter_t cur = defparms.begin()
; cur != defparms.end() ; cur ++) {
out << " defparam " << (*cur).first << " = ";
if ((*cur).second)
out << *(*cur).second << ";" << endl;
else
out << "/* ERROR */;" << endl;
}
for (map<string,PEvent*>::const_iterator cur = events.begin()
; cur != events.end() ; cur ++ ) {
PEvent*ev = (*cur).second;
out << " event " << ev->name() << "; // "
<< ev->get_line() << endl;
}
// Iterate through and display all the wires.
for (map<hname_t,PWire*>::const_iterator wire = wires_.begin()
; wire != wires_.end()
; wire ++ ) {
(*wire).second->dump(out);
}
// Dump the task definitions.
typedef map<string,PTask*>::const_iterator task_iter_t;
for (task_iter_t cur = tasks_.begin()
; cur != tasks_.end() ; cur ++) {
out << " task " << (*cur).first << ";" << endl;
(*cur).second->dump(out, 6);
out << " endtask;" << endl;
}
// Dump the function definitions.
typedef map<string,PFunction*>::const_iterator func_iter_t;
for (func_iter_t cur = funcs_.begin()
; cur != funcs_.end() ; cur ++) {
out << " function " << (*cur).first << ";" << endl;
(*cur).second->dump(out, 6);
out << " endfunction;" << endl;
}
// Iterate through and display all the gates
for (list<PGate*>::const_iterator gate = gates_.begin()
; gate != gates_.end()
; gate ++ ) {
(*gate)->dump(out);
}
for (list<PProcess*>::const_iterator behav = behaviors_.begin()
; behav != behaviors_.end()
; behav ++ ) {
(*behav)->dump(out, 4);
}
out << "endmodule" << endl;
}
void pform_dump(ostream&out, Module*mod)
{
mod->dump(out);
}
void PUdp::dump(ostream&out) const
{
out << "primitive " << name_ << "(" << ports[0];
for (unsigned idx = 1 ; idx < ports.count() ; idx += 1)
out << ", " << ports[idx];
out << ");" << endl;
if (sequential)
out << " reg " << ports[0] << ";" << endl;
out << " table" << endl;
for (unsigned idx = 0 ; idx < tinput.count() ; idx += 1) {
out << " ";
for (unsigned chr = 0 ; chr < tinput[idx].length() ; chr += 1)
out << " " << tinput[idx][chr];
if (sequential)
out << " : " << tcurrent[idx];
out << " : " << toutput[idx] << " ;" << endl;
}
out << " endtable" << endl;
if (sequential)
out << " initial " << ports[0] << " = 1'b" << initial
<< ";" << endl;
out << "endprimitive" << endl;
// Dump the attributes for the primitive as attribute
// statements.
for (map<string,string>::const_iterator idx = attributes.begin()
; idx != attributes.end()
; idx ++) {
out << "$attribute(" << name_ << ", \"" << (*idx).first <<
"\", \"" << (*idx).second << "\")" << endl;
}
}
/*
* $Log: pform_dump.cc,v $
* Revision 1.70 2002/04/21 04:59:08 steve
* Add support for conbinational events by finding
* the inputs to expressions and some statements.
* Get case and assignment statements working.
*
* Revision 1.69 2002/01/26 05:28:28 steve
* Detect scalar/vector declarion mismatch.
*
* Revision 1.68 2001/12/03 04:47:15 steve
* Parser and pform use hierarchical names as hname_t
* objects instead of encoded strings.
*
* Revision 1.67 2001/07/25 03:10:49 steve
* Create a config.h.in file to hold all the config
* junk, and support gcc 3.0. (Stephan Boettcher)
*
* Revision 1.66 2001/01/13 22:20:08 steve
* Parse parameters within nested scopes.
*
* Revision 1.65 2000/12/11 00:31:43 steve
* Add support for signed reg variables,
* simulate in t-vvm signed comparisons.
*
* Revision 1.64 2000/12/10 22:01:36 steve
* Support decimal constants in behavioral delays.
*
* Revision 1.63 2000/11/11 01:52:09 steve
* change set for support of nmos, pmos, rnmos, rpmos, notif0, and notif1
* change set to correct behavior of bufif0 and bufif1
* (Tim Leight)
*
* Also includes fix for PR#27
*
* Revision 1.62 2000/10/14 02:23:02 steve
* Check for missing concat subexpressions (PR#11)
*
* Revision 1.61 2000/07/26 05:08:07 steve
* Parse disable statements to pform.
*
* Revision 1.60 2000/05/23 16:03:13 steve
* Better parsing of expressions lists will empty expressoins.
*
* Revision 1.59 2000/05/16 04:05:16 steve
* Module ports are really special PEIdent
* expressions, because a name can be used
* many places in the port list.
*
* Revision 1.58 2000/05/11 23:37:27 steve
* Add support for procedural continuous assignment.
*
* Revision 1.57 2000/05/06 15:41:57 steve
* Carry assignment strength to pform.
*
* Revision 1.56 2000/05/04 03:37:59 steve
* Add infrastructure for system functions, move
* $time to that structure and add $random.
*
* Revision 1.55 2000/04/22 04:20:19 steve
* Add support for force assignment.
*
* Revision 1.54 2000/04/12 20:02:53 steve
* Finally remove the NetNEvent and NetPEvent classes,
* Get synthesis working with the NetEvWait class,
* and get started supporting multiple events in a
* wait in vvm.
*
* Revision 1.53 2000/04/12 04:23:58 steve
* Named events really should be expressed with PEIdent
* objects in the pform,
*
* Handle named events within the mix of net events
* and edges. As a unified lot they get caught together.
* wait statements are broken into more complex statements
* that include a conditional.
*
* Do not generate NetPEvent or NetNEvent objects in
* elaboration. NetEvent, NetEvWait and NetEvProbe
* take over those functions in the netlist.
*
* Revision 1.52 2000/04/01 19:31:57 steve
* Named events as far as the pform.
*
* Revision 1.51 2000/03/12 17:09:41 steve
* Support localparam.
*
* Revision 1.50 2000/03/08 04:36:54 steve
* Redesign the implementation of scopes and parameters.
* I now generate the scopes and notice the parameters
* in a separate pass over the pform. Once the scopes
* are generated, I can process overrides and evalutate
* paremeters before elaboration begins.
*
* Revision 1.49 2000/02/23 02:56:55 steve
* Macintosh compilers do not support ident.
*
* Revision 1.48 2000/02/18 05:15:03 steve
* Catch module instantiation arrays.
*
* Revision 1.47 2000/01/09 20:37:57 steve
* Careful with wires connected to multiple ports.
*
* Revision 1.46 2000/01/09 05:50:49 steve
* Support named parameter override lists.
*
* Revision 1.45 1999/10/10 01:59:55 steve
* Structural case equals device.
*
* Revision 1.44 1999/09/30 02:43:02 steve
* Elaborate ~^ and ~| operators.
*
* Revision 1.43 1999/09/30 00:48:50 steve
* Cope with errors during ternary operator elaboration.
*
* Revision 1.42 1999/09/29 21:15:58 steve
* Handle some mor missing names.
*
* Revision 1.41 1999/09/29 20:23:53 steve
* Handle empty named ports in the dump.
*
* Revision 1.40 1999/09/29 18:36:04 steve
* Full case support
*
* Revision 1.39 1999/09/17 02:06:26 steve
* Handle unconnected module ports.
*
* Revision 1.38 1999/09/08 02:24:39 steve
* Empty conditionals (pmonta@imedia.com)
*
* Revision 1.37 1999/09/04 19:11:46 steve
* Add support for delayed non-blocking assignments.
*
* Revision 1.36 1999/08/25 22:22:41 steve
* elaborate some aspects of functions.
*
* Revision 1.35 1999/08/23 16:48:39 steve
* Parameter overrides support from Peter Monta
* AND and XOR support wide expressions.
*
* Revision 1.34 1999/08/03 04:49:13 steve
* Proper port type names.
*
* Revision 1.33 1999/08/03 04:14:49 steve
* Parse into pform arbitrarily complex module
* port declarations.
*
* Revision 1.32 1999/08/01 16:34:50 steve
* Parse and elaborate rise/fall/decay times
* for gates, and handle the rules for partial
* lists of times.
*
* Revision 1.31 1999/07/31 19:14:47 steve
* Add functions up to elaboration (Ed Carter)
*
* Revision 1.30 1999/07/30 00:43:17 steve
* Handle dumping tasks with no ports.
*
* Revision 1.29 1999/07/24 02:11:20 steve
* Elaborate task input ports.
*
* Revision 1.28 1999/07/17 19:51:00 steve
* netlist support for ternary operator.
*
* Revision 1.27 1999/07/12 00:59:36 steve
* procedural blocking assignment delays.
*
* Revision 1.26 1999/07/03 02:12:52 steve
* Elaborate user defined tasks.
*
* Revision 1.25 1999/06/24 04:24:18 steve
* Handle expression widths for EEE and NEE operators,
* add named blocks and scope handling,
* add registers declared in named blocks.
*
* Revision 1.24 1999/06/19 21:06:16 steve