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Properly expand/shrink constants in expressions.

This commit is contained in:
steve 2000-01-01 19:56:51 +00:00
parent e6820ed169
commit 65e4e9f428
1 changed files with 18 additions and 5 deletions
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23
set_width.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: set_width.cc,v 1.6 1999/10/05 06:19:46 steve Exp $"
#ident "$Id: set_width.cc,v 1.7 2000/01/01 19:56:51 steve Exp $"
#endif
/*
@ -176,11 +176,21 @@ bool NetEConcat::set_width(unsigned w)
bool NetEConst::set_width(unsigned w)
{
if (w > value_.len())
return false;
if (w > value_.len()) {
verinum tmp (verinum::V0, w);
for (unsigned idx = 0 ; idx < value_.len() ; idx += 1)
tmp.set(idx, value_[idx]);
value_ = tmp;
} else {
verinum tmp (verinum::V0, w);
for (unsigned idx = 0 ; idx < w ; idx += 1)
tmp.set(idx, value_[idx]);
value_ = tmp;
}
assert(w <= value_.len());
value_ = verinum(value_, w);
expr_width(w);
return true;
}
@ -256,6 +266,9 @@ bool NetEUnary::set_width(unsigned w)
/*
* $Log: set_width.cc,v $
* Revision 1.7 2000/01/01 19:56:51 steve
* Properly expand/shrink constants in expressions.
*
* Revision 1.6 1999/10/05 06:19:46 steve
* Add support for reduction NOR.
*