1 /* main.c --- main function for stand-alone RL78 simulator.
2
3 Copyright (C) 2011-2013 Free Software Foundation, Inc.
4 Contributed by Red Hat, Inc.
5
6 This file is part of the GNU simulators.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22
23 #include "config.h"
24 #include <stdio.h>
25 #include <string.h>
26 #include <stdlib.h>
27 #ifdef HAVE_UNISTD_H
28 #include <unistd.h>
29 #endif
30 #include <assert.h>
31 #include <setjmp.h>
32 #include <signal.h>
33 #ifdef HAVE_GETOPT_H
34 #include <getopt.h>
35 #endif
36
37 #include "libiberty.h"
38 #include "bfd.h"
39
40 #include "cpu.h"
41 #include "mem.h"
42 #include "load.h"
43 #include "trace.h"
44
45 static int disassemble = 0;
46 static const char * dump_counts_filename = NULL;
47
48 static void
done(int exit_code)49 done (int exit_code)
50 {
51 if (verbose)
52 {
53 printf ("Exit code: %d\n", exit_code);
54 printf ("total clocks: %lld\n", total_clocks);
55 }
56 if (dump_counts_filename)
57 dump_counts_per_insn (dump_counts_filename);
58 exit (exit_code);
59 }
60
61 int
main(int argc,char ** argv)62 main (int argc, char **argv)
63 {
64 int o;
65 int save_trace;
66 bfd *prog;
67 int rc;
68
69 xmalloc_set_program_name (argv[0]);
70
71 while ((o = getopt (argc, argv, "tvdr:D:")) != -1)
72 {
73 switch (o)
74 {
75 case 't':
76 trace ++;
77 break;
78 case 'v':
79 verbose ++;
80 break;
81 case 'd':
82 disassemble ++;
83 break;
84 case 'r':
85 mem_ram_size (atoi (optarg));
86 break;
87 case 'D':
88 dump_counts_filename = optarg;
89 break;
90 case '?':
91 {
92 fprintf (stderr,
93 "usage: run [options] program [arguments]\n");
94 fprintf (stderr,
95 "\t-v\t\t- increase verbosity.\n"
96 "\t-t\t\t- trace.\n"
97 "\t-d\t\t- disassemble.\n"
98 "\t-r <bytes>\t- ram size.\n"
99 "\t-D <filename>\t- dump cycle count histogram\n");
100 exit (1);
101 }
102 }
103 }
104
105 prog = bfd_openr (argv[optind], 0);
106 if (!prog)
107 {
108 fprintf (stderr, "Can't read %s\n", argv[optind]);
109 exit (1);
110 }
111
112 if (!bfd_check_format (prog, bfd_object))
113 {
114 fprintf (stderr, "%s not a rl78 program\n", argv[optind]);
115 exit (1);
116 }
117
118 init_cpu ();
119
120 rl78_in_gdb = 0;
121 save_trace = trace;
122 trace = 0;
123 rl78_load (prog, 0, argv[0]);
124 trace = save_trace;
125
126 sim_disasm_init (prog);
127
128 rc = setjmp (decode_jmp_buf);
129
130 if (rc == 0)
131 {
132 if (!trace && !disassemble)
133 {
134 /* This will longjmp to the above if an exception
135 happens. */
136 for (;;)
137 decode_opcode ();
138 }
139 else
140 while (1)
141 {
142
143 if (trace)
144 printf ("\n");
145
146 if (disassemble)
147 sim_disasm_one ();
148
149 rc = decode_opcode ();
150
151 if (trace)
152 trace_register_changes ();
153 }
154 }
155
156 if (RL78_HIT_BREAK (rc))
157 done (1);
158 else if (RL78_EXITED (rc))
159 done (RL78_EXIT_STATUS (rc));
160 else if (RL78_STOPPED (rc))
161 {
162 if (verbose)
163 printf ("Stopped on signal %d\n", RL78_STOP_SIG (rc));
164 exit (1);
165 }
166 done (0);
167 exit (0);
168 }
169