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/* $Id$
*
* C-Code kernel / runtime library..
*
* Copyright (C) 2010 FAUmachine Team <info@faumachine.org>.
* This program is free software. You can redistribute it and/or modify it
* under the terms of the GNU General Public License, either version 2 of
* the License, or (at your option) any later version. See COPYING.
*/
#include <unistd.h>
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#include <getopt.h>
#undef _GNU_SOURCE
#else /* _GNU_SOURCE already defined */
#include <getopt.h>
#endif /* _GNU_SOURCE not defined? */
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <pthread.h>
#include "mangle_names.h"
#include "basetypes.h"
#include "runtime.h"
/* init routine as defined by the c-file */
extern int
vhdl_call_by_name(struct vhdl_kernel *kernel, const char *name);
#if 0 /* FIXME */
static int
simulation_cycle(void)
{
for (;;) {
/* advance simulation time to next event */
/* update signals from driving values */
/* wake up all processes with events */
/* resume all processes with events */
/* check for delta cycle, if so back to start */
/* here's a good place to call the tracer */
}
}
#endif
static int
start_simulation(const char *top_entity)
{
char buf[2048];
int ret;
ret = mangle_name(top_entity, buf, sizeof(buf));
assert(0 <= ret);
assert((size_t)ret < sizeof(buf));
#if 0 /* FIXME */
ret = vhdl_call_by_name(buf);
/* TODO */
#endif
return ret;
}
static void
usage(const char *prog)
{
fprintf(stderr, "%s [options]\n", prog);
fprintf(stderr, " Generated VHDL Simulator.\n");
fprintf(stderr, "Options:\n");
fprintf(stderr, " -s ENTITY, --simulate=ENTITY Start simulation "
"with ENTITY as top entity.\n");
fprintf(stderr, " -o VCDFILE, --output=VCDFILE Output trace to ");
fprintf(stderr, "VCDFILE.\n");
fprintf(stderr, " -t, --trace=ENTITY Trace all signals "
"in ENTITY\n");
fprintf(stderr, " -h, --help Show this help.");
fprintf(stderr, "\n");
}
int
main(int argc, char **argv)
{
int c;
int ret;
const char *top_entity = NULL;
const char *trace_file = NULL;
const struct option l_opts[] = {
{"simulate", 1, NULL, 's'},
{"output", 1, NULL, 'o'},
{"trace", 1, NULL, 't'},
{"help", 0, NULL, 'h'},
{0, 0, 0, 0}
};
for (;;) {
c = getopt_long(argc, argv, "s:o:t:h", l_opts, NULL);
if (c == -1) {
break;
}
switch (c) {
case 's':
top_entity = optarg;
break;
case 'o':
trace_file = optarg;
break;
case 't':
assert(0);
/* FIXME */
break;
case 'h':
usage(argv[0]);
return EXIT_SUCCESS;
default:
usage(argv[0]);
return EXIT_FAILURE;
}
}
if (argc - optind != 0) {
usage(argv[0]);
return EXIT_FAILURE;
}
/* FIXME tracer... */
ret = start_simulation(top_entity);
return ret;
}
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