iverilog/tgt-fpga/gates.c

84 lines
2.1 KiB
C
Raw Normal View History

2001-08-28 06:14:20 +02:00
/*
* Copyright (c) 2001 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
*/
#ident "$Id: gates.c,v 1.1 2001/08/28 04:14:20 steve Exp $"
# include <ivl_target.h>
# include "fpga_priv.h"
# include <assert.h>
void draw_pin(ivl_nexus_t nex, const char*nam, char dir)
{
const char*use_name = nam;
const char*nex_name = ivl_nexus_name(nex);
int invert = 0;
if (use_name[0] == '~') {
invert = 1;
use_name += 1;
}
fprintf(xnf, " PIN, %s, %c, %s", use_name, dir, nex_name);
if (invert)
fprintf(xnf, ",,INV");
fprintf(xnf, "\n");
}
static void show_gate_logic(ivl_net_logic_t net)
{
device->show_logic(net);
}
static void show_gate_lpm(ivl_lpm_t net)
{
switch (ivl_lpm_type(net)) {
case IVL_LPM_FF:
device->show_dff(net);
break;
default:
fprintf(stderr, "fpga.tgt: unknown LPM type %u\n",
ivl_lpm_type(net));
break;
}
}
int show_scope_gates(ivl_scope_t net, void*x)
{
unsigned idx;
for (idx = 0 ; idx < ivl_scope_logs(net) ; idx += 1)
show_gate_logic(ivl_scope_log(net, idx));
for (idx = 0 ; idx < ivl_scope_lpms(net) ; idx += 1)
show_gate_lpm(ivl_scope_lpm(net, idx));
return ivl_scope_children(net, show_scope_gates, 0);
}
/*
* $Log: gates.c,v $
* Revision 1.1 2001/08/28 04:14:20 steve
* Add the fpga target.
*
*/