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Wide unary minus in continuous assignments.

This commit is contained in:
steve 2002-06-22 04:22:40 +00:00
parent 5eca5d9948
commit b6a15b2f4d
1 changed files with 31 additions and 5 deletions
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36
elab_net.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: elab_net.cc,v 1.91 2002/06/19 04:20:03 steve Exp $"
#ident "$Id: elab_net.cc,v 1.92 2002/06/22 04:22:40 steve Exp $"
#endif
# include "config.h"
@ -2079,10 +2079,33 @@ NetNet* PEUnary::elaborate_net(Design*des, NetScope*scope,
break;
default:
cerr << get_line() << ": internal error: Wide unary "
<< "minus not supported here." << endl;
des->errors += 1;
sig = 0;
NetAddSub*sub = new NetAddSub(scope, scope->local_hsymbol(),
sig->pin_count());
sub->attribute("LPM_Direction", verinum("SUB"));
des->add_node(sub);
for (unsigned idx = 0 ; idx < sig->pin_count(); idx += 1)
connect(sig->pin(idx), sub->pin_Result(idx));
for (unsigned idx = 0; idx < sub_sig->pin_count(); idx += 1)
connect(sub_sig->pin(idx), sub->pin_DataB(idx));
verinum tmp_num (verinum::V0, sub->width(), true);
NetConst*tmp_con = new NetConst(scope,
scope->local_hsymbol(),
tmp_num);
des->add_node(tmp_con);
NetNet*tmp_sig = new NetNet(scope, scope->local_hsymbol(),
NetNet::WIRE,
sub_sig->pin_count());
tmp_sig->local_flag(true);
for (unsigned idx = 0; idx < sig->pin_count(); idx += 1) {
connect(tmp_sig->pin(idx), sub->pin_DataA(idx));
connect(tmp_sig->pin(idx), tmp_con->pin(idx));
}
break;
}
break;
@ -2098,6 +2121,9 @@ NetNet* PEUnary::elaborate_net(Design*des, NetScope*scope,
/*
* $Log: elab_net.cc,v $
* Revision 1.92 2002/06/22 04:22:40 steve
* Wide unary minus in continuous assignments.
*
* Revision 1.91 2002/06/19 04:20:03 steve
* Remove NetTmp and add NetSubnet class.
*