76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
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/*
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* Copyright (c) 2004 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ident "$Id: part.cc,v 1.1 2004/12/11 02:31:30 steve Exp $"
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# include "compile.h"
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# include "vvp_net.h"
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# include <stdlib.h>
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#ifdef HAVE_MALLOC_H
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# include <malloc.h>
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#endif
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# include <assert.h>
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vvp_fun_part::vvp_fun_part(unsigned base, unsigned wid)
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: base_(base), wid_(wid)
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{
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}
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vvp_fun_part::~vvp_fun_part()
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{
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}
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void vvp_fun_part::recv_vec4(vvp_net_ptr_t port, vvp_vector4_t bit)
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{
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assert(port.port() == 0);
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vvp_vector4_t res(wid_);
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for (unsigned idx = 0 ; idx < wid_ ; idx += 1) {
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if (idx + base_ < bit.size())
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res.set_bit(idx, bit.value(base_+idx));
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else
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res.set_bit(idx, BIT4_X);
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}
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}
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void compile_part_select(char*label, char*source,
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unsigned base, unsigned wid)
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{
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vvp_fun_part*fun = new vvp_fun_part(base, wid);
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vvp_net_t*net = new vvp_net_t;
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net->fun = fun;
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define_functor_symbol(label, net);
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free(label);
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input_connect(net, 0, source);
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}
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/*
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* $Log: part.cc,v $
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* Revision 1.1 2004/12/11 02:31:30 steve
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* Rework of internals to carry vectors through nexus instead
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* of single bits. Make the ivl, tgt-vvp and vvp initial changes
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* down this path.
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*
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*/
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