1 /* Remote debugging interface to m32r and mon2000 ROM monitors for GDB,
4 Copyright (C) 1996-2013 Free Software Foundation, Inc.
6 Adapted by Michael Snyder of Cygnus Support.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This module defines communication with the Renesas m32r monitor. */
28 #include "exceptions.h"
34 #include "symfile.h" /* for generic load */
36 #include <time.h> /* for time_t */
37 #include "gdb_string.h"
38 #include "objfiles.h" /* for ALL_OBJFILES etc. */
43 #include "cli/cli-utils.h"
46 * All this stuff just to get my host computer's IP address!
51 #include <sys/types.h>
52 #include <netdb.h> /* for hostent */
53 #include <netinet/in.h> /* for struct in_addr */
55 #include <arpa/inet.h> /* for inet_ntoa */
59 static char *board_addr; /* user-settable IP address for M32R-EVA */
60 static char *server_addr; /* user-settable IP address for gdb host */
61 static char *download_path; /* user-settable path for SREC files */
68 #define ACCL_REGNUM 22
69 #define ACCH_REGNUM 23
73 * Function: m32r_load_1 (helper function)
77 m32r_load_section (bfd *abfd, asection *s, void *obj)
79 unsigned int *data_count = obj;
80 if (s->flags & SEC_LOAD)
82 int addr_size = gdbarch_addr_bit (target_gdbarch ()) / 8;
83 bfd_size_type section_size = bfd_section_size (abfd, s);
84 bfd_vma section_base = bfd_section_lma (abfd, s);
85 unsigned int buffer, i;
87 *data_count += section_size;
89 printf_filtered ("Loading section %s, size 0x%lx lma ",
90 bfd_section_name (abfd, s),
91 (unsigned long) section_size);
92 fputs_filtered (paddress (target_gdbarch (), section_base), gdb_stdout);
93 printf_filtered ("\n");
94 gdb_flush (gdb_stdout);
95 monitor_printf ("%s mw\r", phex_nz (section_base, addr_size));
96 for (i = 0; i < section_size; i += 4)
99 monitor_expect (" -> ", NULL, 0);
100 bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
101 monitor_printf ("%x\n", buffer);
103 monitor_expect (" -> ", NULL, 0);
104 monitor_printf ("q\n");
105 monitor_expect_prompt (NULL, 0);
110 m32r_load_1 (void *dummy)
114 bfd_map_over_sections ((bfd *) dummy, m32r_load_section, &data_count);
119 * Function: m32r_load (an alternate way to load)
123 m32r_load (char *filename, int from_tty)
126 unsigned int data_count = 0;
127 struct timeval start_time, end_time;
128 struct cleanup *cleanup;
130 if (filename == NULL || filename[0] == 0)
131 filename = get_exec_file (1);
133 abfd = gdb_bfd_open (filename, NULL, -1);
135 error (_("Unable to open file %s."), filename);
136 cleanup = make_cleanup_bfd_unref (abfd);
137 if (bfd_check_format (abfd, bfd_object) == 0)
138 error (_("File is not an object file."));
139 gettimeofday (&start_time, NULL);
141 for (s = abfd->sections; s; s = s->next)
142 if (s->flags & SEC_LOAD)
144 bfd_size_type section_size = bfd_section_size (abfd, s);
145 bfd_vma section_base = bfd_section_vma (abfd, s);
148 data_count += section_size;
150 printf_filtered ("Loading section %s, size 0x%lx vma ",
151 bfd_section_name (abfd, s), section_size);
152 fputs_filtered (paddress (target_gdbarch (), section_base), gdb_stdout);
153 printf_filtered ("\n");
154 gdb_flush (gdb_stdout);
155 monitor_printf ("%x mw\r", section_base);
156 for (i = 0; i < section_size; i += 4)
158 monitor_expect (" -> ", NULL, 0);
159 bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
160 monitor_printf ("%x\n", buffer);
162 monitor_expect (" -> ", NULL, 0);
163 monitor_printf ("q\n");
164 monitor_expect_prompt (NULL, 0);
167 if (!(catch_errors (m32r_load_1, abfd, "Load aborted!\n", RETURN_MASK_ALL)))
169 monitor_printf ("q\n");
173 gettimeofday (&end_time, NULL);
174 printf_filtered ("Start address 0x%lx\n",
175 (unsigned long) bfd_get_start_address (abfd));
176 print_transfer_performance (gdb_stdout, data_count, 0, &start_time,
179 /* Finally, make the PC point at the start address. */
181 regcache_write_pc (get_current_regcache (),
182 bfd_get_start_address (exec_bfd));
184 inferior_ptid = null_ptid; /* No process now. */
186 /* This is necessary because many things were based on the PC at the
187 time that we attached to the monitor, which is no longer valid
188 now that we have loaded new code (and just changed the PC).
189 Another way to do this might be to call normal_stop, except that
190 the stack may not be valid, and things would get horribly
193 clear_symtab_users (0);
194 do_cleanups (cleanup);
198 m32r_load_gen (char *filename, int from_tty)
200 generic_load (filename, from_tty);
203 static void m32r_open (char *args, int from_tty);
204 static void mon2000_open (char *args, int from_tty);
206 /* This array of registers needs to match the indexes used by GDB. The
207 whole reason this exists is because the various ROM monitors use
208 different names than GDB does, and don't support all the registers
209 either. So, typing "info reg sp" becomes an "A7". */
211 static char *m32r_regnames[] =
212 { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
213 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
214 "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch",
218 m32r_supply_register (struct regcache *regcache, char *regname,
219 int regnamelen, char *val, int vallen)
222 int num_regs = sizeof (m32r_regnames) / sizeof (m32r_regnames[0]);
223 struct gdbarch *gdbarch = get_regcache_arch (regcache);
225 for (regno = 0; regno < num_regs; regno++)
226 if (strncmp (regname, m32r_regnames[regno], regnamelen) == 0)
229 if (regno >= num_regs)
230 return; /* no match */
232 if (regno == ACCL_REGNUM)
233 { /* Special handling for 64-bit acc reg. */
234 monitor_supply_register (regcache, ACCH_REGNUM, val);
235 val = strchr (val, ':'); /* Skip past ':' to get 2nd word. */
237 monitor_supply_register (regcache, ACCL_REGNUM, val + 1);
241 monitor_supply_register (regcache, regno, val);
242 if (regno == PSW_REGNUM)
244 #if (defined SM_REGNUM || defined BSM_REGNUM || defined IE_REGNUM \
245 || defined BIE_REGNUM || defined COND_REGNUM || defined CBR_REGNUM \
246 || defined BPC_REGNUM || defined BCARRY_REGNUM)
247 unsigned long psw = strtoul (val, NULL, 16);
248 char *zero = "00000000", *one = "00000001";
253 monitor_supply_register (regcache, SM_REGNUM,
254 (psw & 0x80) ? one : zero);
257 /* Backup stack mode bit */
258 monitor_supply_register (regcache, BSM_REGNUM,
259 (psw & 0x8000) ? one : zero);
262 /* Interrupt enable bit */
263 monitor_supply_register (regcache, IE_REGNUM,
264 (psw & 0x40) ? one : zero);
267 /* Backup interrupt enable bit */
268 monitor_supply_register (regcache, BIE_REGNUM,
269 (psw & 0x4000) ? one : zero);
272 /* Condition bit (carry etc.) */
273 monitor_supply_register (regcache, COND_REGNUM,
274 (psw & 0x1) ? one : zero);
277 monitor_supply_register (regcache, CBR_REGNUM,
278 (psw & 0x1) ? one : zero);
281 monitor_supply_register (regcache, BPC_REGNUM,
282 zero); /* KLUDGE: (???????) */
285 monitor_supply_register (regcache, BCARRY_REGNUM,
286 zero); /* KLUDGE: (??????) */
290 if (regno == SPI_REGNUM || regno == SPU_REGNUM)
291 { /* special handling for stack pointer (spu or spi). */
292 ULONGEST stackmode, psw;
293 regcache_cooked_read_unsigned (regcache, PSW_REGNUM, &psw);
294 stackmode = psw & 0x80;
296 if (regno == SPI_REGNUM && !stackmode) /* SP == SPI */
297 monitor_supply_register (regcache,
298 gdbarch_sp_regnum (gdbarch), val);
299 else if (regno == SPU_REGNUM && stackmode) /* SP == SPU */
300 monitor_supply_register (regcache,
301 gdbarch_sp_regnum (gdbarch), val);
306 /* m32r RevC board monitor */
308 static struct target_ops m32r_ops;
310 static char *m32r_inits[] = { "\r", NULL };
312 static struct monitor_ops m32r_cmds;
315 init_m32r_cmds (void)
317 m32r_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_REGISTER_VALUE_FIRST;
318 m32r_cmds.init = m32r_inits; /* Init strings */
319 m32r_cmds.cont = "go\r"; /* continue command */
320 m32r_cmds.step = "step\r"; /* single step */
321 m32r_cmds.stop = NULL; /* interrupt command */
322 m32r_cmds.set_break = "%x +bp\r"; /* set a breakpoint */
323 m32r_cmds.clr_break = "%x -bp\r"; /* clear a breakpoint */
324 m32r_cmds.clr_all_break = "bpoff\r"; /* clear all breakpoints */
325 m32r_cmds.fill = "%x %x %x fill\r"; /* fill (start length val) */
326 m32r_cmds.setmem.cmdb = "%x 1 %x fill\r"; /* setmem.cmdb (addr, value) */
327 m32r_cmds.setmem.cmdw = "%x 1 %x fillh\r"; /* setmem.cmdw (addr, value) */
328 m32r_cmds.setmem.cmdl = "%x 1 %x fillw\r"; /* setmem.cmdl (addr, value) */
329 m32r_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
330 m32r_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
331 m32r_cmds.setmem.term = NULL; /* setmem.term */
332 m32r_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
333 m32r_cmds.getmem.cmdb = "%x %x dump\r"; /* getmem.cmdb (addr, len) */
334 m32r_cmds.getmem.cmdw = NULL; /* getmem.cmdw (addr, len) */
335 m32r_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, len) */
336 m32r_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
337 m32r_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
338 m32r_cmds.getmem.term = NULL; /* getmem.term */
339 m32r_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
340 m32r_cmds.setreg.cmd = "%x to %%%s\r"; /* setreg.cmd (name, value) */
341 m32r_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
342 m32r_cmds.setreg.term = NULL; /* setreg.term */
343 m32r_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
344 m32r_cmds.getreg.cmd = NULL; /* getreg.cmd (name) */
345 m32r_cmds.getreg.resp_delim = NULL; /* getreg.resp_delim */
346 m32r_cmds.getreg.term = NULL; /* getreg.term */
347 m32r_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
348 m32r_cmds.dump_registers = ".reg\r"; /* dump_registers */
349 /* register_pattern */
350 m32r_cmds.register_pattern = "\\(\\w+\\) += \\([0-9a-fA-F]+\\b\\)";
351 m32r_cmds.supply_register = m32r_supply_register;
352 m32r_cmds.load = NULL; /* download command */
353 m32r_cmds.loadresp = NULL; /* load response */
354 m32r_cmds.prompt = "ok "; /* monitor command prompt */
355 m32r_cmds.line_term = "\r"; /* end-of-line terminator */
356 m32r_cmds.cmd_end = NULL; /* optional command terminator */
357 m32r_cmds.target = &m32r_ops; /* target operations */
358 m32r_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
359 m32r_cmds.regnames = m32r_regnames; /* registers names */
360 m32r_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
361 } /* init_m32r_cmds */
364 m32r_open (char *args, int from_tty)
366 monitor_open (args, &m32r_cmds, from_tty);
369 /* Mon2000 monitor (MSA2000 board) */
371 static struct target_ops mon2000_ops;
372 static struct monitor_ops mon2000_cmds;
375 init_mon2000_cmds (void)
377 mon2000_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_REGISTER_VALUE_FIRST;
378 mon2000_cmds.init = m32r_inits; /* Init strings */
379 mon2000_cmds.cont = "go\r"; /* continue command */
380 mon2000_cmds.step = "step\r"; /* single step */
381 mon2000_cmds.stop = NULL; /* interrupt command */
382 mon2000_cmds.set_break = "%x +bp\r"; /* set a breakpoint */
383 mon2000_cmds.clr_break = "%x -bp\r"; /* clear a breakpoint */
384 mon2000_cmds.clr_all_break = "bpoff\r"; /* clear all breakpoints */
385 mon2000_cmds.fill = "%x %x %x fill\r"; /* fill (start length val) */
386 mon2000_cmds.setmem.cmdb = "%x 1 %x fill\r"; /* setmem.cmdb (addr, value) */
387 mon2000_cmds.setmem.cmdw = "%x 1 %x fillh\r"; /* setmem.cmdw (addr, value) */
388 mon2000_cmds.setmem.cmdl = "%x 1 %x fillw\r"; /* setmem.cmdl (addr, value) */
389 mon2000_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
390 mon2000_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
391 mon2000_cmds.setmem.term = NULL; /* setmem.term */
392 mon2000_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
393 mon2000_cmds.getmem.cmdb = "%x %x dump\r"; /* getmem.cmdb (addr, len) */
394 mon2000_cmds.getmem.cmdw = NULL; /* getmem.cmdw (addr, len) */
395 mon2000_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, len) */
396 mon2000_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
397 mon2000_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
398 mon2000_cmds.getmem.term = NULL; /* getmem.term */
399 mon2000_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
400 mon2000_cmds.setreg.cmd = "%x to %%%s\r"; /* setreg.cmd (name, value) */
401 mon2000_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
402 mon2000_cmds.setreg.term = NULL; /* setreg.term */
403 mon2000_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
404 mon2000_cmds.getreg.cmd = NULL; /* getreg.cmd (name) */
405 mon2000_cmds.getreg.resp_delim = NULL; /* getreg.resp_delim */
406 mon2000_cmds.getreg.term = NULL; /* getreg.term */
407 mon2000_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
408 mon2000_cmds.dump_registers = ".reg\r"; /* dump_registers */
409 /* register_pattern */
410 mon2000_cmds.register_pattern = "\\(\\w+\\) += \\([0-9a-fA-F]+\\b\\)";
411 mon2000_cmds.supply_register = m32r_supply_register;
412 mon2000_cmds.load = NULL; /* download command */
413 mon2000_cmds.loadresp = NULL; /* load response */
414 mon2000_cmds.prompt = "Mon2000>"; /* monitor command prompt */
415 mon2000_cmds.line_term = "\r"; /* end-of-line terminator */
416 mon2000_cmds.cmd_end = NULL; /* optional command terminator */
417 mon2000_cmds.target = &mon2000_ops; /* target operations */
418 mon2000_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
419 mon2000_cmds.regnames = m32r_regnames; /* registers names */
420 mon2000_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
421 } /* init_mon2000_cmds */
424 mon2000_open (char *args, int from_tty)
426 monitor_open (args, &mon2000_cmds, from_tty);
430 m32r_upload_command (char *args, int from_tty)
434 struct timeval start_time, end_time;
435 int resp_len, data_count = 0;
437 struct hostent *hostent;
438 struct in_addr inet_addr;
439 struct cleanup *cleanup;
441 /* First check to see if there's an ethernet port! */
442 monitor_printf ("ust\r");
443 resp_len = monitor_expect_prompt (buf, sizeof (buf));
444 if (!strchr (buf, ':'))
445 error (_("No ethernet connection!"));
449 /* Scan second colon in the output from the "ust" command. */
450 char *myIPaddress = strchr (strchr (buf, ':') + 1, ':') + 1;
452 myIPaddress = skip_spaces (myIPaddress);
454 if (!strncmp (myIPaddress, "0.0.", 4)) /* empty */
455 error (_("Please use 'set board-address' to "
456 "set the M32R-EVA board's IP address."));
457 if (strchr (myIPaddress, '('))
458 *(strchr (myIPaddress, '(')) = '\0'; /* delete trailing junk */
459 board_addr = xstrdup (myIPaddress);
461 if (server_addr == 0)
465 /* Winsock initialization. */
466 if (WSAStartup (MAKEWORD (1, 1), &wd))
467 error (_("Couldn't initialize WINSOCK."));
471 gethostname (buf, sizeof (buf));
474 hostent = gethostbyname (buf);
478 memcpy (&inet_addr.s_addr, hostent->h_addr,
479 sizeof (inet_addr.s_addr));
480 server_addr = (char *) inet_ntoa (inet_addr);
482 server_addr = (char *) inet_ntoa (hostent->h_addr);
486 if (server_addr == 0) /* failed? */
487 error (_("Need to know gdb host computer's "
488 "IP address (use 'set server-address')"));
491 if (args == 0 || args[0] == 0) /* No args: upload the current
493 args = get_exec_file (1);
495 if (args[0] != '/' && download_path == 0)
497 if (current_directory)
498 download_path = xstrdup (current_directory);
500 error (_("Need to know default download "
501 "path (use 'set download-path')"));
504 gettimeofday (&start_time, NULL);
505 monitor_printf ("uhip %s\r", server_addr);
506 resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
507 monitor_printf ("ulip %s\r", board_addr);
508 resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
510 monitor_printf ("up %s\r", download_path); /* use default path */
512 monitor_printf ("up\r"); /* rooted filename/path */
513 resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
515 if (strrchr (args, '.') && !strcmp (strrchr (args, '.'), ".srec"))
516 monitor_printf ("ul %s\r", args);
517 else /* add ".srec" suffix */
518 monitor_printf ("ul %s.srec\r", args);
519 resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
521 if (buf[0] == 0 || strstr (buf, "complete") == 0)
522 error (_("Upload file not found: %s.srec\n"
523 "Check IP addresses and download path."),
526 printf_filtered (" -- Ethernet load complete.\n");
528 gettimeofday (&end_time, NULL);
529 abfd = gdb_bfd_open (args, NULL, -1);
530 cleanup = make_cleanup_bfd_unref (abfd);
532 { /* Download is done -- print section statistics. */
533 if (bfd_check_format (abfd, bfd_object) == 0)
535 printf_filtered ("File is not an object file\n");
537 for (s = abfd->sections; s; s = s->next)
538 if (s->flags & SEC_LOAD)
540 bfd_size_type section_size = bfd_section_size (abfd, s);
541 bfd_vma section_base = bfd_section_lma (abfd, s);
543 data_count += section_size;
545 printf_filtered ("Loading section %s, size 0x%lx lma ",
546 bfd_section_name (abfd, s),
547 (unsigned long) section_size);
548 fputs_filtered (paddress (target_gdbarch (), section_base),
550 printf_filtered ("\n");
551 gdb_flush (gdb_stdout);
553 /* Finally, make the PC point at the start address. */
554 regcache_write_pc (get_current_regcache (),
555 bfd_get_start_address (abfd));
556 printf_filtered ("Start address 0x%lx\n",
557 (unsigned long) bfd_get_start_address (abfd));
558 print_transfer_performance (gdb_stdout, data_count, 0, &start_time,
561 inferior_ptid = null_ptid; /* No process now. */
563 /* This is necessary because many things were based on the PC at the
564 time that we attached to the monitor, which is no longer valid
565 now that we have loaded new code (and just changed the PC).
566 Another way to do this might be to call normal_stop, except that
567 the stack may not be valid, and things would get horribly
570 clear_symtab_users (0);
571 do_cleanups (cleanup);
574 /* Provide a prototype to silence -Wmissing-prototypes. */
575 extern initialize_file_ftype _initialize_m32r_rom;
578 _initialize_m32r_rom (void)
580 /* Initialize m32r RevC monitor target. */
582 init_monitor_ops (&m32r_ops);
584 m32r_ops.to_shortname = "m32r";
585 m32r_ops.to_longname = "m32r monitor";
586 m32r_ops.to_load = m32r_load_gen; /* Monitor lacks a download
588 m32r_ops.to_doc = "Debug via the m32r monitor.\n\
589 Specify the serial device it is connected to (e.g. /dev/ttya).";
590 m32r_ops.to_open = m32r_open;
591 add_target (&m32r_ops);
593 /* Initialize mon2000 monitor target */
594 init_mon2000_cmds ();
595 init_monitor_ops (&mon2000_ops);
597 mon2000_ops.to_shortname = "mon2000";
598 mon2000_ops.to_longname = "Mon2000 monitor";
599 mon2000_ops.to_load = m32r_load_gen; /* Monitor lacks a download
601 mon2000_ops.to_doc = "Debug via the Mon2000 monitor.\n\
602 Specify the serial device it is connected to (e.g. /dev/ttya).";
603 mon2000_ops.to_open = mon2000_open;
604 add_target (&mon2000_ops);
606 add_setshow_string_cmd ("download-path", class_obscure, &download_path, _("\
607 Set the default path for downloadable SREC files."), _("\
608 Show the default path for downloadable SREC files."), _("\
609 Determines the default path for downloadable SREC files."),
611 NULL, /* FIXME: i18n: The default path for
612 downloadable SREC files is %s. */
613 &setlist, &showlist);
615 add_setshow_string_cmd ("board-address", class_obscure, &board_addr, _("\
616 Set IP address for M32R-EVA target board."), _("\
617 Show IP address for M32R-EVA target board."), _("\
618 Determine the IP address for M32R-EVA target board."),
620 NULL, /* FIXME: i18n: IP address for
621 M32R-EVA target board is %s. */
622 &setlist, &showlist);
624 add_setshow_string_cmd ("server-address", class_obscure, &server_addr, _("\
625 Set IP address for download server (GDB's host computer)."), _("\
626 Show IP address for download server (GDB's host computer)."), _("\
627 Determine the IP address for download server (GDB's host computer)."),
629 NULL, /* FIXME: i18n: IP address for
630 download server (GDB's host
632 &setlist, &showlist);
634 add_com ("upload", class_obscure, m32r_upload_command, _("\
635 Upload the srec file via the monitor's Ethernet upload capability."));
637 add_com ("tload", class_obscure, m32r_load, _("test upload command."));