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Diffstat (limited to 'sim/rl78/main.c')
| -rw-r--r-- | sim/rl78/main.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/sim/rl78/main.c b/sim/rl78/main.c new file mode 100644 index 0000000..4b4bacf --- /dev/null +++ b/sim/rl78/main.c @@ -0,0 +1,169 @@ +/* main.c --- main function for stand-alone RL78 simulator. + + Copyright (C) 2011 + 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); +} |