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Parameters cannot have their width changed.

This commit is contained in:
steve 2005-05-17 20:56:55 +00:00
parent 82be4ab189
commit 7796c8bcfb
4 changed files with 37 additions and 7 deletions
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7
design_dump.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: design_dump.cc,v 1.158 2005/05/07 03:13:30 steve Exp $"
#ident "$Id: design_dump.cc,v 1.159 2005/05/17 20:56:55 steve Exp $"
#endif
# include "config.h"
@ -999,7 +999,7 @@ void NetEConstParam::dump(ostream&o) const
{
o << "<" << name_ << "=";
NetEConst::dump(o);
o << ">";
o << ", wid=" << expr_width() << ">";
}
void NetECReal::dump(ostream&o) const
@ -1143,6 +1143,9 @@ void Design::dump(ostream&o) const
/*
* $Log: design_dump.cc,v $
* Revision 1.159 2005/05/17 20:56:55 steve
* Parameters cannot have their width changed.
*
* Revision 1.158 2005/05/07 03:13:30 steve
* Include delay expressions for assignments in dump.
*

17
elaborate.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: elaborate.cc,v 1.322 2005/05/13 05:12:39 steve Exp $"
#ident "$Id: elaborate.cc,v 1.323 2005/05/17 20:56:55 steve Exp $"
#endif
# include "config.h"
@ -1861,9 +1861,10 @@ NetProc* PCallTask::elaborate_usr(Design*des, NetScope*scope) const
continue;
NetESignal*sig = new NetESignal(port);
NetExpr*rv = pad_to_width(sig, count_lval_width(lv));
/* Generate the assignment statement. */
NetAssign*ass = new NetAssign(lv, sig);
NetAssign*ass = new NetAssign(lv, rv);
block->append(ass);
}
@ -2478,8 +2479,15 @@ NetProc* PForStatement::elaborate(Design*des, NetScope*scope) const
/* Make the r-value of the initial assignment, and size it
properly. Then use it to build the assignment statement. */
etmp = expr1_->elaborate_expr(des, scope);
etmp = elab_and_eval(des, scope, expr1_);
etmp->set_width(lv->lwidth());
etmp = pad_to_width(etmp, lv->lwidth());
if (debug_elaborate) {
cerr << get_line() << ": debug: FOR initial assign: "
<< sig->name() << " = " << *etmp << endl;
assert(etmp->expr_width() >= lv->lwidth());
}
NetAssign*init = new NetAssign(lv, etmp);
init->set_line(*this);
@ -2957,6 +2965,9 @@ Design* elaborate(list<perm_string>roots)
/*
* $Log: elaborate.cc,v $
* Revision 1.323 2005/05/17 20:56:55 steve
* Parameters cannot have their width changed.
*
* Revision 1.322 2005/05/13 05:12:39 steve
* Some debug messages.
*

6
netlist.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: netlist.h,v 1.342 2005/05/08 23:44:08 steve Exp $"
#ident "$Id: netlist.h,v 1.343 2005/05/17 20:56:55 steve Exp $"
#endif
/*
@ -1123,6 +1123,7 @@ class NetEConstParam : public NetEConst {
perm_string name() const;
const NetScope*scope() const;
virtual bool set_width(unsigned w);
virtual void expr_scan(struct expr_scan_t*) const;
virtual void dump(ostream&) const;
@ -3443,6 +3444,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
/*
* $Log: netlist.h,v $
* Revision 1.343 2005/05/17 20:56:55 steve
* Parameters cannot have their width changed.
*
* Revision 1.342 2005/05/08 23:44:08 steve
* Add support for variable part select.
*

14
set_width.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: set_width.cc,v 1.35 2005/01/24 05:28:31 steve Exp $"
#ident "$Id: set_width.cc,v 1.36 2005/05/17 20:56:55 steve Exp $"
#endif
# include "config.h"
@ -312,6 +312,15 @@ bool NetEConst::set_width(unsigned w)
}
}
/*
* Parameter vectors cannot be resized because they refer to a common
* value.
*/
bool NetEConstParam::set_width(unsigned w)
{
return w == expr_width();
}
/*
* Real constants can have whatever width the environment wants,
* because it isn't really a vector. The environment will convert this
@ -405,6 +414,9 @@ bool NetEUReduce::set_width(unsigned w)
/*
* $Log: set_width.cc,v $
* Revision 1.36 2005/05/17 20:56:55 steve
* Parameters cannot have their width changed.
*
* Revision 1.35 2005/01/24 05:28:31 steve
* Remove the NetEBitSel and combine all bit/part select
* behavior into the NetESelect node and IVL_EX_SELECT