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blif support for IVL_LPM_FF devices.

This commit is contained in:
Stephen Williams 2013-08-19 16:42:49 -07:00
parent 8117f4b383
commit d209d8ee39
4 changed files with 67 additions and 1 deletions
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2
tgt-blif/Makefile.in
View File

@ -45,7 +45,7 @@ CXXFLAGS = @WARNING_FLAGS@ @WARNING_FLAGS_CXX@ @CXXFLAGS@
LDFLAGS = @LDFLAGS@
O = blif.o constants.o logic_gate.o lpm.o lpm_add.o lpm_cmp_eq.o lpm_cmp_gt.o \
lpm_mux.o lpm_part_vp.o lpm_re_logic.o nex_data.o
lpm_ff.o lpm_mux.o lpm_part_vp.o lpm_re_logic.o nex_data.o
all: dep blif.tgt

3
tgt-blif/lpm.cc
View File

@ -88,6 +88,9 @@ int print_lpm(FILE*fd, ivl_lpm_t net)
case IVL_LPM_CMP_NEE:
rc += print_lpm_cmp_ne(fd, net);
break;
case IVL_LPM_FF:
rc += print_lpm_ff(fd, net);
break;
case IVL_LPM_MUX:
rc += print_lpm_mux(fd, net);
break;

62
tgt-blif/lpm_ff.cc Normal file
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@ -0,0 +1,62 @@
/*
* Copyright (c) 2013 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include "priv.h"
# include "nex_data.h"
# include <cassert>
using namespace std;
int print_lpm_ff(FILE*fd, ivl_lpm_t net)
{
int errors = 0;
ivl_nexus_t nex_q = ivl_lpm_q(net);
blif_nex_data_t*ned_q = blif_nex_data_t::get_nex_data(nex_q);
ivl_nexus_t nex_d = ivl_lpm_data(net,0);
blif_nex_data_t*ned_d = blif_nex_data_t::get_nex_data(nex_d);
ivl_nexus_t nex_c = ivl_lpm_clk(net);
blif_nex_data_t*ned_c = blif_nex_data_t::get_nex_data(nex_c);
if (ivl_lpm_async_clr(net)) {
errors += 1;
fprintf(stderr, "%s:%u: sorry: blif: Asynchronous clear not implemented yet\n",
ivl_lpm_file(net), ivl_lpm_lineno(net));
}
if (ivl_lpm_async_set(net)) {
errors += 1;
fprintf(stderr, "%s:%u: sorry: blif: Asynchronous set not implemented yet\n",
ivl_lpm_file(net), ivl_lpm_lineno(net));
}
fprintf(fd, "# IVL_LPM_FF: width=%u, Q=%s, D=%s, C=%s\n",
ivl_lpm_width(net), ned_q->get_name(), ned_d->get_name(), ned_c->get_name());
for (unsigned wid = 0 ; wid < ivl_lpm_width(net) ; wid += 1) {
fprintf(fd, ".latch %s%s %s%s re %s%s 3\n",
ned_d->get_name(), ned_d->get_name_index(wid),
ned_q->get_name(), ned_q->get_name_index(wid),
ned_c->get_name(), ned_c->get_name_index(0));
}
return errors;
}

1
tgt-blif/priv.h
View File

@ -32,6 +32,7 @@ extern int print_logic_gate(FILE*fd, ivl_net_logic_t net);
extern int print_lpm(FILE*fd, ivl_lpm_t net);
extern int print_lpm_add(FILE*fd, ivl_lpm_t net);
extern int print_lpm_ff(FILE*fd, ivl_lpm_t net);
extern int print_lpm_sub(FILE*fd, ivl_lpm_t net);
extern int print_lpm_cmp_eq(FILE*fd, ivl_lpm_t net);
extern int print_lpm_cmp_gt(FILE*fd, ivl_lpm_t net);