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Node delays can be more general expressions in structural contexts.

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steve
2006-01-02 05:33:19 +00:00
parent b7861fa6e8
commit 58f182a159
15 changed files with 480 additions and 208 deletions
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PGate.cc
+59 -2
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@@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: PGate.cc,v 1.16 2004/02/18 17:11:54 steve Exp $"
#ident "$Id: PGate.cc,v 1.17 2006/01/02 05:33:19 steve Exp $"
#endif
# include "config.h"
@@ -90,12 +90,66 @@ void PGate::elaborate_scope(Design*, NetScope*) const
* parameters. This method understands how to handle the different
* numbers of expressions.
*/
void PGate::eval_delays(Design*des, NetScope*scope,
NetExpr*&rise_expr,
NetExpr*&fall_expr,
NetExpr*&decay_expr) const
{
delay_.eval_delays(des, scope, rise_expr, fall_expr, decay_expr);
}
void PGate::eval_delays(Design*des, NetScope*scope,
unsigned long&rise_time,
unsigned long&fall_time,
unsigned long&decay_time) const
{
delay_.eval_delays(des, scope, rise_time, fall_time, decay_time);
NetExpr*rise_expr, *fall_expr, *decay_expr;
delay_.eval_delays(des, scope, rise_expr, fall_expr, decay_expr);
if (rise_expr == 0) {
rise_time = 0;
fall_time = 0;
decay_time = 0;
}
if (NetEConst*tmp = dynamic_cast<NetEConst*> (rise_expr)) {
rise_time = tmp->value().as_ulong();
} else {
cerr << get_line() << ": error: Delay expressions must be "
<< "constant here." << endl;
cerr << get_line() << ": : Cannot calculate "
<< *rise_expr << endl;
des->errors += 1;
rise_time = 0;
}
if (NetEConst*tmp = dynamic_cast<NetEConst*> (fall_expr)) {
fall_time = tmp->value().as_ulong();
} else {
if (fall_expr != rise_expr) {
cerr << get_line() << ": error: Delay expressions must be "
<< "constant here." << endl;
cerr << get_line() << ": : Cannot calculate "
<< *rise_expr << endl;
}
des->errors += 1;
fall_time = 0;
}
if (NetEConst*tmp = dynamic_cast<NetEConst*> (decay_expr)) {
decay_time = tmp->value().as_ulong();
} else {
cerr << get_line() << ": error: Delay expressions must be "
<< "constant here." << endl;
cerr << get_line() << ": : Cannot calculate "
<< *rise_expr << endl;
des->errors += 1;
decay_time = 0;
}
}
PGAssign::PGAssign(svector<PExpr*>*pins)
@@ -191,6 +245,9 @@ perm_string PGModule::get_type()
/*
* $Log: PGate.cc,v $
* Revision 1.17 2006/01/02 05:33:19 steve
* Node delays can be more general expressions in structural contexts.
*
* Revision 1.16 2004/02/18 17:11:54 steve
* Use perm_strings for named langiage items.
*