130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2001-2004 Stephen Williams (steve@icarus.com)
|
|
*
|
|
* 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
|
|
*/
|
|
#ifdef HAVE_CVS_IDENT
|
|
#ident "$Id: resolv.cc,v 1.26 2005/06/22 18:30:12 steve Exp $"
|
|
#endif
|
|
|
|
# include "resolv.h"
|
|
# include "schedule.h"
|
|
# include "statistics.h"
|
|
# include <iostream>
|
|
# include <assert.h>
|
|
|
|
|
|
resolv_functor::resolv_functor(vvp_scalar_t hiz_value)
|
|
: hiz_(hiz_value)
|
|
{
|
|
}
|
|
|
|
resolv_functor::~resolv_functor()
|
|
{
|
|
}
|
|
|
|
void resolv_functor::recv_vec4(vvp_net_ptr_t port, const vvp_vector4_t&bit)
|
|
{
|
|
recv_vec8(port, vvp_vector8_t(bit, 6 /* STRONG */));
|
|
}
|
|
|
|
void resolv_functor::recv_vec4_pv(vvp_net_ptr_t port, const vvp_vector4_t&bit,
|
|
unsigned base, unsigned wid, unsigned vwid)
|
|
{
|
|
assert(bit.size() == wid);
|
|
vvp_vector4_t res (vwid);
|
|
|
|
for (unsigned idx = 0 ; idx < base ; idx += 1)
|
|
res.set_bit(idx, BIT4_Z);
|
|
|
|
for (unsigned idx = 0 ; idx < wid ; idx += 1)
|
|
res.set_bit(idx+base, bit.value(idx));
|
|
|
|
for (unsigned idx = base+wid ; idx < vwid ; idx += 1)
|
|
res.set_bit(idx, BIT4_Z);
|
|
|
|
recv_vec4(port, res);
|
|
}
|
|
|
|
void resolv_functor::recv_vec8(vvp_net_ptr_t port, vvp_vector8_t bit)
|
|
{
|
|
unsigned pdx = port.port();
|
|
vvp_net_t*ptr = port.ptr();
|
|
|
|
if (val_[pdx].eeq(bit))
|
|
return;
|
|
|
|
val_[pdx] = bit;
|
|
|
|
vvp_vector8_t out (bit);
|
|
|
|
for (unsigned idx = 0 ; idx < 4 ; idx += 1) {
|
|
if (val_[idx].size() == 0)
|
|
continue;
|
|
if (idx == pdx)
|
|
continue;
|
|
|
|
out = resolve(out, val_[idx]);
|
|
}
|
|
|
|
if (! hiz_.is_hiz()) {
|
|
for (unsigned idx = 0 ; idx < out.size() ; idx += 1) {
|
|
if (out.value(idx).is_hiz())
|
|
out.set_bit(idx, hiz_);
|
|
}
|
|
}
|
|
|
|
vvp_send_vec8(ptr->out, out);
|
|
}
|
|
|
|
|
|
/*
|
|
* $Log: resolv.cc,v $
|
|
* Revision 1.26 2005/06/22 18:30:12 steve
|
|
* Inline more simple stuff, and more vector4_t by const reference for performance.
|
|
*
|
|
* Revision 1.25 2005/06/22 00:04:49 steve
|
|
* Reduce vvp_vector4 copies by using const references.
|
|
*
|
|
* Revision 1.24 2005/06/15 00:47:15 steve
|
|
* Resolv do not propogate inputs that do not change.
|
|
*
|
|
* Revision 1.23 2005/04/13 06:34:20 steve
|
|
* Add vvp driver functor for logic outputs,
|
|
* Add ostream output operators for debugging.
|
|
*
|
|
* Revision 1.22 2005/03/12 04:27:43 steve
|
|
* Implement VPI access to signal strengths,
|
|
* Fix resolution of ambiguous drive pairs,
|
|
* Fix spelling of scalar.
|
|
*
|
|
* Revision 1.21 2005/02/13 05:26:30 steve
|
|
* tri0 and tri1 resolvers must replace HiZ with 0/1 after resolution.
|
|
*
|
|
* Revision 1.20 2005/01/09 20:11:16 steve
|
|
* Add the .part/pv node and related functionality.
|
|
*
|
|
* Revision 1.19 2004/12/31 06:00:06 steve
|
|
* Implement .resolv functors, and stub signals recv_vec8 method.
|
|
*
|
|
* Revision 1.18 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.
|
|
*
|
|
*/
|
|
|