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/* main.c --- main function for stand-alone RL78 simulator.
Copyright (C) 2011-2012 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <assert.h>
#include <setjmp.h>
#include <signal.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include "libiberty.h"
#include "bfd.h"
#include "cpu.h"
#include "mem.h"
#include "load.h"
#include "trace.h"
static int disassemble = 0;
static const char * dump_counts_filename = NULL;
static void
done (int exit_code)
{
if (verbose)
{
printf ("Exit code: %d\n", exit_code);
printf ("total clocks: %lld\n", total_clocks);
}
if (dump_counts_filename)
dump_counts_per_insn (dump_counts_filename);
exit (exit_code);
}
int
main (int argc, char **argv)
{
int o;
int save_trace;
bfd *prog;
int rc;
xmalloc_set_program_name (argv[0]);
while ((o = getopt (argc, argv, "tvdr:D:")) != -1)
{
switch (o)
{
case 't':
trace ++;
break;
case 'v':
verbose ++;
break;
case 'd':
disassemble ++;
break;
case 'r':
mem_ram_size (atoi (optarg));
break;
case 'D':
dump_counts_filename = optarg;
break;
case '?':
{
fprintf (stderr,
"usage: run [options] program [arguments]\n");
fprintf (stderr,
"\t-v\t\t- increase verbosity.\n"
"\t-t\t\t- trace.\n"
"\t-d\t\t- disassemble.\n"
"\t-r <bytes>\t- ram size.\n"
"\t-D <filename>\t- dump cycle count histogram\n");
exit (1);
}
}
}
prog = bfd_openr (argv[optind], 0);
if (!prog)
{
fprintf (stderr, "Can't read %s\n", argv[optind]);
exit (1);
}
if (!bfd_check_format (prog, bfd_object))
{
fprintf (stderr, "%s not a rl78 program\n", argv[optind]);
exit (1);
}
init_cpu ();
rl78_in_gdb = 0;
save_trace = trace;
trace = 0;
rl78_load (prog, 0, argv[0]);
trace = save_trace;
sim_disasm_init (prog);
rc = setjmp (decode_jmp_buf);
if (rc == 0)
{
if (!trace && !disassemble)
{
/* This will longjmp to the above if an exception
happens. */
for (;;)
decode_opcode ();
}
else
while (1)
{
if (trace)
printf ("\n");
if (disassemble)
sim_disasm_one ();
rc = decode_opcode ();
if (trace)
trace_register_changes ();
}
}
if (RL78_HIT_BREAK (rc))
done (1);
else if (RL78_EXITED (rc))
done (RL78_EXIT_STATUS (rc));
else if (RL78_STOPPED (rc))
{
if (verbose)
printf ("Stopped on signal %d\n", RL78_STOP_SIG (rc));
exit (1);
}
done (0);
exit (0);
}
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