mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-08-29 01:03:29 +02:00
Stephen Williams
dddaacc6fd
The signal bit numbering should be used for signals. This is necessary for .model ports because the user specified numbers are part of the interface, but once that is done, it is trivial to follow it internally as well.
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (c) 2013 Stephen Williams ([email protected])
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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# include "priv.h"
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# include "nex_data.h"
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# include <cstdio>
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static void print_constant(FILE*fd, ivl_net_const_t net)
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{
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unsigned wid = ivl_const_width(net);
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const char*val = ivl_const_bits(net);
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ivl_nexus_t nex = ivl_const_nex(net);
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blif_nex_data_t*ned = blif_nex_data_t::get_nex_data(nex);
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for (unsigned idx = 0 ; idx < wid ; idx += 1) {
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switch (val[idx]) {
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case '1':
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fprintf(fd, ".names %s%s # const 1\n1\n",
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ned->get_name(), ned->get_name_index(idx));
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break;
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case '0':
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fprintf(fd, ".names %s%s # const 0\n",
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ned->get_name(), ned->get_name_index(idx));
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break;
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default:
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fprintf(fd, ".names %s%s # const %c\n",
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ned->get_name(), ned->get_name_index(idx), val[idx]);
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break;
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}
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}
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}
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void emit_constants(FILE*fd, ivl_design_t des, ivl_scope_t model)
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{
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for (unsigned idx = 0 ; idx < ivl_design_consts(des) ; idx += 1) {
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ivl_net_const_t net = ivl_design_const(des, idx);
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if (! scope_is_in_model(model, ivl_const_scope(net)))
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continue;
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print_constant(fd, net);
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}
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}
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