Rework of internals to carry vectors through nexus instead

of single bits. Make the ivl, tgt-vvp and vvp initial changes
 down this path.

vvp/part.cc

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2004 Stephen Williams ([email protected])
+ *
+ *    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
+ */
+#ident "$Id: part.cc,v 1.1 2004/12/11 02:31:30 steve Exp $"
+
+# include  "compile.h"
+# include  "vvp_net.h"
+# include  <stdlib.h>
+#ifdef HAVE_MALLOC_H
+# include  <malloc.h>
+#endif
+# include  <assert.h>
+
+vvp_fun_part::vvp_fun_part(unsigned base, unsigned wid)
+: base_(base), wid_(wid)
+{
+}
+
+vvp_fun_part::~vvp_fun_part()
+{
+}
+
+void vvp_fun_part::recv_vec4(vvp_net_ptr_t port, vvp_vector4_t bit)
+{
+      assert(port.port() == 0);
+
+      vvp_vector4_t res(wid_);
+
+      for (unsigned idx = 0 ;  idx < wid_ ;  idx += 1) {
+	    if (idx + base_ < bit.size())
+		  res.set_bit(idx, bit.value(base_+idx));
+	    else
+		  res.set_bit(idx, BIT4_X);
+      }
+
+}
+
+void compile_part_select(char*label, char*source,
+			 unsigned base, unsigned wid)
+{
+      vvp_fun_part*fun = new vvp_fun_part(base, wid);
+
+      vvp_net_t*net = new vvp_net_t;
+      net->fun = fun;
+
+      define_functor_symbol(label, net);
+      free(label);
+
+      input_connect(net, 0, source);
+}
+
+/*
+ * $Log: part.cc,v $
+ * Revision 1.1  2004/12/11 02:31:30  steve
+ *  Rework of internals to carry vectors through nexus instead
+ *  of single bits. Make the ivl, tgt-vvp and vvp initial changes
+ *  down this path.
+ *
+ */
+