169 lines
3.3 KiB
C
169 lines
3.3 KiB
C
/* main.c --- main function for stand-alone RL78 simulator.
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Copyright (C) 2011-2015 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <assert.h>
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#include <setjmp.h>
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#include <signal.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#include "libiberty.h"
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#include "bfd.h"
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#include "cpu.h"
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#include "mem.h"
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#include "load.h"
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#include "trace.h"
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static int disassemble = 0;
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static const char * dump_counts_filename = NULL;
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static void
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done (int exit_code)
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{
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if (verbose)
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{
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printf ("Exit code: %d\n", exit_code);
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printf ("total clocks: %lld\n", total_clocks);
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}
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if (dump_counts_filename)
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dump_counts_per_insn (dump_counts_filename);
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exit (exit_code);
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}
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int
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main (int argc, char **argv)
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{
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int o;
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int save_trace;
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bfd *prog;
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int rc;
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xmalloc_set_program_name (argv[0]);
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while ((o = getopt (argc, argv, "tvdr:D:")) != -1)
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{
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switch (o)
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{
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case 't':
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trace ++;
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break;
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case 'v':
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verbose ++;
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break;
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case 'd':
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disassemble ++;
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break;
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case 'r':
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mem_ram_size (atoi (optarg));
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break;
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case 'D':
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dump_counts_filename = optarg;
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break;
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case '?':
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{
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fprintf (stderr,
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"usage: run [options] program [arguments]\n");
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fprintf (stderr,
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"\t-v\t\t- increase verbosity.\n"
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"\t-t\t\t- trace.\n"
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"\t-d\t\t- disassemble.\n"
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"\t-r <bytes>\t- ram size.\n"
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"\t-D <filename>\t- dump cycle count histogram\n");
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exit (1);
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}
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}
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}
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prog = bfd_openr (argv[optind], 0);
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if (!prog)
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{
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fprintf (stderr, "Can't read %s\n", argv[optind]);
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exit (1);
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}
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if (!bfd_check_format (prog, bfd_object))
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{
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fprintf (stderr, "%s not a rl78 program\n", argv[optind]);
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exit (1);
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}
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init_cpu ();
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rl78_in_gdb = 0;
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save_trace = trace;
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trace = 0;
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rl78_load (prog, 0, argv[0]);
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trace = save_trace;
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sim_disasm_init (prog);
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rc = setjmp (decode_jmp_buf);
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if (rc == 0)
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{
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if (!trace && !disassemble)
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{
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/* This will longjmp to the above if an exception
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happens. */
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for (;;)
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decode_opcode ();
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}
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else
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while (1)
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{
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if (trace)
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printf ("\n");
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if (disassemble)
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sim_disasm_one ();
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rc = decode_opcode ();
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if (trace)
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trace_register_changes ();
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}
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}
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if (RL78_HIT_BREAK (rc))
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done (1);
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else if (RL78_EXITED (rc))
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done (RL78_EXIT_STATUS (rc));
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else if (RL78_STOPPED (rc))
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{
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if (verbose)
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printf ("Stopped on signal %d\n", RL78_STOP_SIG (rc));
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exit (1);
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}
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done (0);
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exit (0);
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}
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