sim/v850/ChangeLog

   1 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3 start-sanitize-v850eq
   4         * interp.c (sim_create_inferior): For v850eq set US bit by
   5         default.
   6
   7 end-sanitize-v850eq
   8 start-sanitize-v850e
   9         * interp.c (sim_open): Don't set arch, now set by
  10         sim_analyze_program.
  11
  12 end-sanitize-v850e
  13         * configure: Regenerated to track ../common/aclocal.m4 changes.
  14
  15 Mon Sep 15 14:39:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  16
  17         * simops.c (op_types): Move from here.
  18         sim-main.h: To here.
  19
  20         * sim-main.h (trace_input, trace_output), simops.c: Make global.
  21
  22         * simops.c (OP_60): Move "jmp" code from here.
  23         * v850.igen (jmp): To here.
  24
  25 start-sanitize-v850eq
  26         * simops.c (OP_60): Move "sld.bu" code from here.
  27         * v850.igen (sld.bu): To here.
  28
  29 end-sanitize-v850eq
  30 Fri Sep 12 15:11:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  31
  32 start-sanitize-v850eq
  33         * v850.igen (prepare, ...): Add to v850eq architecture.
  34
  35 end-sanitize-v850eq
  36 start-sanitize-v850e
  37         * interp.c (sim_open): Default to v850eq.
  38
  39 end-sanitize-v850e
  40 start-sanitize-v850eq
  41
  42         * interp.c (sim_open): Default to v850e.
  43 end-sanitize-v850eq
  44         * sim-main.h (signal.h): Include.
  45
  46         * v850.igen (illegal): Report/halt illegal instructions.
  47
  48         * Makefile.in (SIM_EXTRA_CFLAGS): Add SIM_RESERVED_BITS.
  49
  50         * configure.in: Add reserved bits option.
  51         * configure: Regenerate.
  52
  53 Thu Sep 11 08:40:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  54
  55         * interp.c (sim_open): Use sim_do_commandf instead of asprintf.
  56
  57         * sim-main.h (INSN_NAME):
  58
  59         * Makefile.in (INCLUDE): Add SIM_EXTRA_DEPS.
  60         (SIM_EXTRA_DEPS): Add itable.h
  61         (tmp-gencode): Does not depend on simops.h
  62
  63         * sim-main.h (itable.h): Include.
  64         (MAX_INSNS, INSN_NAME): Define.
  65
  66         * interp.c: Compute inttype from the interrupt_names index that
  67         was passed in.
  68
  69 Wed Sep 10 10:25:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  70
  71         * simops.c (trace_input): Use trace_printf instead of
  72         sim_io_printf.
  73         (trace_output): Ditto.
  74         (trace_input): Only trace when TRACE_ALU_P.  Delete code
  75         disasembling instruction.
  76         (trace_output): Only trace when TRACE_ALU_P.
  77
  78 Tue Sep  9 01:29:50 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  79
  80         * simops.c (trace_input, trace_output): Use sim_io_printf.
  81         (OP_620): Pass correct argument to trace.
  82         (OP_E607E0): Ditto.
  83         (trace_input): Obtain prog_bfd, text_start et.al from simulator
  84         struct.
  85
  86 Mon Sep  8 21:03:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  87
  88         * v850.igen: New file.
  89         * v850-dc: New file.
  90
  91 Mon Sep  8 18:33:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  92
  93
  94         * sim-main.h (SEXT16): Delete, use EXTEND16.
  95         (SEXT8): Delete, use EXTEND8.
  96         (SEXT32): Delete, used?
  97         (SEXT40, SEXT44, SEXT64): Use UNSIGNED64 for constants, not ...LL.
  98         (WITH_TARGET_WORD_MSB): Define as 31. v850 little bit endian.
  99
 100         * simops.c: Use EXTEND15 from sim-bits instead of SEXT16.
 101
 102         * sim-main.h (DEBUG_TRACE, DEBUG_VALUES, v850_debug): Delete,
 103         replace with TRACE_INSN_P and TRACE_ALU_P.
 104
 105         * simops.c (trace_input, trace_output): Update.
 106
 107         * interp.c (sim_engine_run): Delete.
 108         (lookup_hash): Delete.
 109         (sim_open): Do not fill hash table.
 110         (sim_trace): Delete.
 111
 112 Fri Sep  5 17:04:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 113
 114         * simops.c (OP_FFFF): Use sim_engine_halt.
 115         (OP_12007E0): Ditto.
 116         (OP_10007E0): Ditto.
 117
 118         * sim-main.h (struct sim_cpu): Delete member exception. Using
 119         sim-engine et.al.
 120
 121         * interp.c (sim_info): Do not do anything in sim-info.
 122         (sim_stop): Delete, replace with sim-stop.
 123         (sim_stop_reason): Delete, replace with sim-reason.
 124
 125         * sim-main.h (WITH_WATCHPOINTS): Define.
 126         (WITH_MODULO_MEMORY): Define
 127
 128         * Makefile.in (SIM_OBJS): Add sim-resume, sim-watch, sim-stop,
 129         sim-reason.
 130
 131         * interp.c (enum interrupt_cond_type): Delete.
 132         (struct interrupt_generator): Delete.
 133         (enum interrupt_type): Drop int_none.
 134         (sim_open): Initialize WATCHPOINT module.
 135         (sim_resume, sim_run): Rename sim_resume to sim_run.
 136         (sim_engine_run): Replace interrupt code with call to sim-events.
 137         (sim_set_interrupt): Delete.
 138         (sim_parse_number): Delete.
 139
 140 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 141
 142         * configure: Regenerated to track ../common/aclocal.m4 changes.
 143
 144 Thu Sep  4 18:11:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 145
 146         * simops.c (fetch_argv): New function, fetch a arg vector from
 147         simulator memory.
 148
 149         * configure.in: Check for fork, execve, execv.
 150         * configure: Regenerate.
 151
 152         * interp.c (sim_store_register, sim_fetch_register): Use H2T_4 and
 153         T2H_4 for byte swapping.
 154
 155         * sim-main.h, interp.c (get_word, get_half, get_byte, put_word,
 156         put_half, put_byte): Delete.
 157
 158         * Makefile.in (SIM_OBJS): Add sim-memopt.o module.
 159
 160         * sim-main.h (load_mem, store_mem): Redefine as macros.
 161         (IMEM, IMEM_IMMED): New macros - fetch instructions.
 162
 163         * simops.c (OP_10007E0): For SYS_read, SYS_write, SYS_open
 164         transfer data via a buffer.
 165         (fetch_str): New function, fetch string from memory.
 166
 167         * Makefile.in (SIM_OBJS): Add sim-hrw.o module.
 168
 169         * interp.c (sim_open): Establish memory maps using sim-memopt.c
 170         via sim_do_command.
 171         (sim_do_command): Print error if memory-map command is used. Call
 172         sim_args_command.
 173         (map): Delete, replaced by sim-core.
 174         (sim_memory_init): Delete, replaced by sim-core.
 175         (sim_set_memory_map): Delete, replaced by sim-memopt.
 176         (load_mem): Delete, replaced by sim-core.
 177         (store_mem): Delete, replaced by sim-core.
 178         (sim_write): Delete, replaced by sim-hrw.
 179         (sim_read): Delete, replaced by sim-hrw.
 180
 181         * sim-main.h (struct sim_state): Remove memory members, using
 182         sim-core.c
 183
 184 Wed Sep  3 10:18:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 185
 186         * sim-main.h: Replace SIM_HAVE_FLATMEM with mem ptr.
 187         * interp.c (map): Do not add to a void pointer.
 188
 189         * Makefile.in (INCLUDE): Add sim-main.h
 190
 191         * configure.in: Check for time.h
 192         * configure: Re-generate.
 193
 194         * interp.c (struct interrupt_generator): Make time unsigned long,
 195         address SIM_ADDR.
 196         (sim_resume): Make oldpc SIM_ADDR.
 197         (struct hash_entry): Make mask/opcode unsigned.
 198
 199         * v850_sim.h (struct simops ): Make opcode and mask unsigned.
 200
 201         * simops.c (utime.h): Include if available.
 202         (OP_10007E0): Check for UTIME function.
 203         (divun): Put parentheses around shift argument.
 204         (OP_640): Put parentheses around shift argument, was wrong.
 205         (OP_107F0): Return something.
 206
 207         * interp.c (sim_parse_number): Use strtoul not strtol.
 208         (sim_resume): Use sim_elapsed_time_get to keep track of the time.
 209
 210         * configure.in (SIM_AC_OPTION_WARNINGS): Add.
 211         (SIM_AC_OPTION_ENDIAN): Set to hardwired big.
 212         (SIM_AC_OPTION_HOST_ENDIAN): Add.
 213         (AC_CHECK_FUNCS): Add utime.
 214         (AC_CHECK_HEADERS): Add stdlib.h, string.h, strings.h, utime.h
 215         configure: Regenerate.
 216
 217
 218         * Makefile.in (SIM_RUN_OBJS): Use nrun.o.
 219         (SIM_OBJS): Add sim-io.o, sim-hload.o, sim-utils.o, sim-options.o,
 220         sim-config.o, sim-module.o, sim-events.o, sim-core.o,
 221         sim-endian.o, sim-engine.o, sim-trace.o, sim-profile.o
 222         (SIM_ENDIAN, SIM_WARNGINS): Define.
 223
 224         * simops.c (OP_10007E0): Use sim_io_* for transfers.
 225
 226         * interp.c (sim_resume): Pass sd around.
 227
 228         * simops.c (sim-main.h): Include.
 229
 230         * gencode.c (write_template): Generate #include sim-main.h.
 231         (write_opcodes): Ditto.
 232
 233         * interp.c (prog_bfd, prog_bfd_was_opened_p): Delete.
 234         (v850_callback): Ditto.
 235         (sim_kind, myname): Ditto.
 236         (lookup_hash): Pass SD. Use sim_io_error.
 237         (sim_set_memory_map): Pass in SD, use.
 238         (init_system): Pass in SD, use.
 239         (sim_open): Update.
 240         (sim_set_profile): Delete.
 241         (sim_set_profile_size): Delete.
 242         (do_interrupt): Pass in SD, use.
 243         (sim_info): Use sim_io_printf.
 244         (sim_create_inferior): Reset registers.  Set PC from prog_bfd
 245         argument.
 246         (sim_load): Delete, use common/sim-hload.c
 247         (sim_size): Rename to sim_memory_init.
 248         (sim_write): Remove call to init_system.
 249         (init_system): Delete.
 250         (sim_set_callbacks): Delete.
 251         (sim_set_interrupt): Pass in SD, use.
 252         (start_time): Delete.
 253
 254         * v850_sim.h: Remove everything except `struct simops' from here.
 255         * sim-main.h: Move most to here.
 256         * gencode.c: Move #includes to here.
 257
 258         * sim-main.h(struct _sim_cpu): Rename struct _state.
 259         (#define PC, et.al.): Update
 260         (v850_callback): Delete.  Replaced with SIM_DESC arg.
 261         (int8, uint8, int16, uint16, int32, uint32): Define types using
 262         unsigned8 et.al from common/sim-types.h.
 263         * sim-main.h (State): Define as STATE_CPU.
 264
 265 Mon Sep  1 12:07:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 266
 267         * configure.in: Check for time, chmod.
 268         * configure: Regenerate.
 269         * simops.c (SYS_time, SYS_chmod): Use HAVE_TIME, HAVE_CHMOD.
 270
 271         * simops.c (../../libgloss/v850/sys/syscall.h): Include instead of
 272         sys/syscall.h.
 273         (OP_10007E0): Check the existance each SYS_* macro independantly.
 274
 275         * v850_sim.h (SIGQUIT, SIGTRAP): Only define if missing.
 276
 277 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 278
 279         * configure: Regenerated to track ../common/aclocal.m4 changes.
 280         * config.in: Ditto.
 281
 282 Tue Aug 26 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 283
 284         * interp.c (sim_kill): Delete.
 285         (sim_create_inferior): Add ABFD argument.
 286         (sim_load): Move setting of PC from here.
 287         (sim_create_inferior): To here.
 288
 289 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 290
 291         * configure: Regenerated to track ../common/aclocal.m4 changes.
 292         * config.in: Ditto.
 293
 294 Mon Aug 25 11:31:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 295
 296         * interp.c (sim_open): Add ABFD argument.
 297
 298 start-sanitize-v850e
 299 Fri Aug 22 10:39:28 1997  Nick Clifton  <nickc@cygnus.com>
 300
 301         * simops.c (bsh): Only set CY flag if either of the bottom
 302         bytes is zero.
 303
 304         * simops.c (prepare, dispose): Lower numbered
 305         registers go to higher numbered address.
 306
 307         * simops.c (unsigned divide instructions): S bit set if result has
 308         top bit set.
 309
 310 start-sanitize-v850eq
 311         * simops.c (pushml, pushmh, popml, popmh): Lower numbered
 312         registers go to higher numbered address.
 313 end-sanitize-v850eq
 314 end-sanitize-v850e
 315
 316 Wed Aug 20 13:56:35 1997  Nick Clifton  <nickc@cygnus.com>
 317
 318         * simops.c (OP_107E0, OP_107F0, OP_307E0, OP_307F0): Use correct
 319         interpretation of SR bit in list18 structure.
 320 start-sanitize-v850eq
 321         (divn, divun): New functions to perform N step divide functions.
 322 end-sanitize-v850eq
 323
 324 start-sanitize-v850eq
 325 Mon Aug 18 10:59:02 1997  Nick Clifton  <nickc@cygnus.com>
 326
 327         * simops.c (OP_300, OP_400, OP_60, OP_70): Support variant opcodes
 328         with US bit set in the PSW.
 329 start-sanitize-v850eq
 330
 331 Wed Aug 13 19:06:55 1997  Nick Clifton  <nickc@cygnus.com>
 332
 333         * interp.c (sim_resume): Opcode functions return amount to be
 334         added to PC and all opcodes take a standard format in the OP[]
 335         array.
 336
 337         (do_format_*): Functions removed.
 338
 339         * v850_sim.h (SP, EP): New register mnemonics.
 340
 341         * gencode.c (write_header): Functions prototypes return an
 342         integer.
 343
 344         * simops.c: Opcode functions return amount to be added to PC.
 345
 346 start-sanitize-v850e
 347         * v850_sim.h (CTPC, CTPSW, CTBP): New register mnemonics.
 348
 349         * simops.c: Add support for v850e instructions.
 350
 351         * .Sanitize (Do-first, Do-last): Add support for keep-v850e
 352         command line option.
 353
 354 end-sanitize-v850e
 355
 356 start-sanitize-v850eq
 357         * .Sanitize (Do-first, Do-last): Add support for keep-v850eq
 358         command line option.
 359
 360         * simops.c: Add support for v850eq instructions.
 361 end-sanitize-v850eq
 362
 363 Tue May 20 10:24:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 364
 365         * interp.c (sim_open): Add callback argument.
 366         (sim_set_callbacks): Delete SIM_DESC argument.
 367
 368 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 369
 370         * configure: Regenerated to track ../common/aclocal.m4 changes.
 371
 372 Wed Apr 23 17:20:16 1997  Doug Evans  <dje@canuck.cygnus.com>
 373
 374         * interp.c (prog_bfd_was_opened_p): New static local.
 375         (prog_bfd): New global variable.
 376         (sim_open): Undo patch to add -E support.
 377         (sim_close): Close prog_bfd if sim_load opened it.
 378         (sim_load): Record bfd of loaded file in prog_bfd.
 379         * simops.c (prog_bfd): Renamed from exec_bfd.
 380
 381 Fri Apr 18 14:17:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 382
 383         * interp.c (sim_stop): Stub function.
 384
 385 Thu Apr 17 03:53:18 1997  Doug Evans  <dje@canuck.cygnus.com>
 386
 387         * Makefile.in (SIM_OBJS): Add sim-load.o.
 388         * interp.c (sim_kind, myname): New static locals.
 389         (sim_open): Set sim_kind, myname.  Ignore -E arg.
 390         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 391         load file into simulator.  Set start address from bfd.
 392         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 393
 394 Wed Apr 16 19:53:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 395
 396         * simops.c (OP_10007E0): Only provide system calls SYS_execv,
 397         SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
 398
 399 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 400
 401         * configure: Regenerated to track ../common/aclocal.m4 changes.
 402         * config.in: Ditto.
 403
 404 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 405
 406         * interp.c (sim_open): New arg `kind'.
 407
 408         * configure: Regenerated to track ../common/aclocal.m4 changes.
 409
 410 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 411
 412         * configure: Regenerated to track ../common/aclocal.m4 changes.
 413
 414 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 415
 416         * configure: Regenerated to track ../common/aclocal.m4 changes.
 417
 418 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 419
 420         * configure: Re-generate.
 421
 422 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 423
 424         * configure: Regenerate to track ../common/aclocal.m4 changes.
 425
 426 Thu Mar 13 13:00:54 1997  Doug Evans  <dje@canuck.cygnus.com>
 427
 428         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 429         in argv form.
 430         (other sim_*): New SIM_DESC argument.
 431
 432 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 433
 434         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 435         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 436         * configure.in: sinclude ../common/aclocal.m4.
 437         * configure: Regenerated.
 438
 439 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 440
 441         * configure configure.in Makefile.in:  Update to new configure
 442         scheme which is more compatible with WinGDB builds.
 443         * configure.in:  Improve comment on how to run autoconf.
 444         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 445         * Makefile.in:  Use autoconf substitution to install common
 446         makefile fragment.
 447
 448 Mon Jan 20 16:05:34 1997  Michael Meissner  <meissner@tiktok.cygnus.com>
 449
 450         * simops.c (OP_{E0,2E0,6E0}): The multiply operations sign extend,
 451         not zero extend.
 452
 453 Tue Jan 14 17:06:03 1997  Stu Grossman  (grossman@critters.cygnus.com)
 454
 455         * simops.c:  Put ifdefs around things to make MSVC happy.  Get rid
 456         of unistd.h.  Disable SYS_stat, SYS_chown, SYS_time, SYS_times,
 457         SYS_gettimeofday and SYS_utime from MSVC.
 458
 459 Tue Dec 31 18:11:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 460
 461         * simops.c (OP_10007E0): Know that kill encodes the signal number
 462         via: 0xdead0000 | signal and turn it back into a signal.
 463
 464 Fri Dec 27 14:44:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 465
 466         * v850_sim.h (SIG_V850_EXIT): Define as -1.
 467
 468         * interp.c (sim_open): Cast calloc function.
 469         (sim_stop_reason): If signal is SIG_V850_EXIT, inform gdb the
 470         program exited with the appropriate exit code.
 471         (sim_set_interrupt): Declare buildargv.
 472
 473         * simops.c (OP_10007E0): Make exit signal normal exit.  Make time
 474         type correct and work on big endian systems.
 475
 476 Wed Nov 20 02:18:44 1996  Doug Evans  <dje@canuck.cygnus.com>
 477
 478         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 479         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
 480         * configure.in: Simplify using macros in ../common/aclocal.m4.
 481         Call AC_CHECK_HEADERS(unistd.h).
 482         * configure: Regenerated.
 483         * config.in: New file.
 484         * simops.c: #include "config.h".  #include <unistd.h> if present.
 485
 486 Sun Nov  3 23:02:54 1996  Stan Shebs  <shebs@andros.cygnus.com>
 487
 488         * v850_sim.h (State): New slots dummy_mem, pending_nmi.
 489         (EIPC, etc): New macros for system registers.
 490         * simops.c, interp.c: Use everywhere.
 491
 492         * interp.c: Add support for interrupts issued by interrupt
 493         generators, either PC- or time-based.  Controlled by simulator
 494         command "sim interrupt".
 495
 496         * interp.c: Add support for variable-size allocation of memory,
 497         via simulator command "sim memory-map".
 498         (map): Issue SIGSEGV for references to invalid memory regions.
 499
 500 Thu Oct 31 14:44:10 1996  Gavin Koch  <gavin@cygnus.com>
 501
 502         * simops.c: Include <sys/time.h> for struct timeval and
 503         struct timezone.
 504
 505 Wed Oct 30 08:49:10 1996  Jeffrey A Law  (law@cygnus.com)
 506
 507         * simops.c (OP_10007E0): Handle SYS_times and SYS_gettimeofday.
 508
 509         * simops.c (OP_10007E0): Handle SYS_time.
 510
 511 Tue Oct 29 14:22:55 1996  Jeffrey A Law  (law@cygnus.com)
 512
 513         * simops.c: Include <sys/stat.h>.
 514         (OP_10007E0): Handle SYS_stat.
 515
 516 Thu Oct 24 12:26:35 1996  Jeffrey A Law  (law@cygnus.com)
 517
 518         * simops.c (OP_10007E0): Don't declare errno.
 519
 520         * simops.c (OP_500): Mask off low bit in displacement
 521         for sld.w.
 522         (OP_501): Similarly.
 523
 524         * simops.c (OP_500): Fix displacement handling for sld.w.
 525         (OP_501): Similarly for sst.w.
 526
 527         * simops.c (trace_input): Remove all references to SEXT7.
 528         (OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
 529         is zero extended for sst/sld instructions.
 530         * v850_sim.h (SEX7): Delete.  It's no longer needed (and it
 531         was incorrect anyway).
 532
 533 Thu Oct 24 10:33:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 534
 535         * Makefile.in:  Get rid of srcroot.  Set all INSTALL macros via
 536         autoconf.
 537         * gencode.c (write_opcodes):  Pad operands field to account for
 538         MSVC braindamage.
 539         * simops.c:  Include errno.h.  Exclude SYS_chown, since MSVC
 540         doesn't support it.  (Why is this here in the first place?!?)
 541         * v850_sim.h:  Get rid of 64 bit defs.  Also, get rid of #elif's.
 542         Change number of operands in struct simops from 9 to 6.  Define
 543         SIGTRAP and SIGQUIT for MSVC.
 544
 545 Tue Oct 15 16:19:51 1996  Stu Grossman  (grossman@critters.cygnus.com)
 546
 547         * interp.c (MEM_SIZE):  It's now bytes, not a power of 2.
 548         * (map):  Add support for external mem in the 1->2 meg range.
 549         Also, abort() when memory access is way out of bounds.  (Better to
 550         die than to give wrong result.  (This will be fixed later.))
 551         * (sim_size):  MEM_SIZE is now bytes, not shift factor.
 552
 553 Tue Oct  1 15:53:24 1996  Gavin Koch <gavin@cygnus.com>
 554
 555         * simops.c (trace_input): Swapped order of operands for output
 556         output of OP_IMM_REG.  Changed the fetching of the operands for
 557         OP_LOAD32, and OP_STORE32 to work like op-function.
 558
 559 Mon Sep 30 15:46:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 560
 561         * interp.c:  Move includes of remote-sim.h and callback.h to
 562         v850-sim.h.
 563         * (lookup_hash): Add PC to report of hash failure.
 564         * (map load_mem store_mem):  New memory subsystem.  Models V851
 565         memory system.
 566         * (sim_write sim_read):  Use new memory subsystem.
 567         * (sim_resume):  Don't load and save PC into EIPC anymore.  Needed
 568         to make user-defined traps work right.
 569         * simops.c (OP_*):  Use new memory subsystem.
 570         * (OP_14007E0 (reti)):  Implement reti.
 571         * (OP_14996E0 (trap)):  Implement user-defined traps.  Move I/O to
 572         trap 31.  Use new memory subsystem.
 573         * v850_sim.h:  Prototypes for load_mem, store_mem and map.  Use
 574         load_mem in RLW macro.
 575
 576 Fri Sep 27 18:34:09 1996  Stu Grossman  (grossman@critters.cygnus.com)
 577
 578         * gencode.c (write_opcodes):  Output hex values for opcode mask
 579         and patterns.
 580         * interp.c (sim_resume):  Save and restore PC from the appropriate
 581         register.
 582         * (sim_fetch_register sim_store_register):  Fix byte-order problem
 583         with reading and writing registers.
 584         * simops.c (OP_FFFF):  Implement pseudo-breakpoint insn.
 585
 586 Fri Sep 27 17:42:37 1996  Jeffrey A Law  (law@cygnus.com)
 587
 588         * simops.c (trace_input): Fix thinko.
 589
 590 Wed Sep 18 09:54:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 591
 592         * simops.c (exec_bfd): Rename from sim_bfd.
 593         (trace_input): Ditto.
 594
 595 Thu Sep 12 12:03:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 596
 597         * simops.c (trace_input): Use find_nearest_line to print line
 598         number, function name or file name of PC.
 599
 600 Wed Sep 11 16:44:37 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 601
 602         * simops.c: Add tracing support.  Use SEXTxx macros instead of
 603         doing hardwired shifts.
 604
 605         * configure.in (--enable-sim-cflags): Add switch to add additional
 606         flags to simulator buld.  If --enable-sim-cflags=trace, turn on
 607         tracing.
 608         * configure: Regenerate.
 609
 610         * Makefile.in: Don't require a VPATH capable make if configuring
 611         in the same directory.  Don't use CFLAGS for configuration flags.
 612         Add flags from --enable-sim-cflags.  Support canadian cross
 613         builds.  Rebuild whole simulator if include files change.
 614
 615         * interp.c (v850_debug): New global for debugging.
 616         (lookup_hash,sim_size,sim_set_profile): Use
 617         printf_filtered callback, instead of calling printf directly.
 618         (sim_{open,trace}): Enable tracing if -t and compiled for tracing.
 619
 620         * v850_sim.h: Use limits.h to set the various sized types.
 621         (SEXT{5,7,16,22}): New macros.
 622
 623 Mon Sep  9 20:50:46 1996  Jeffrey A Law  (law@cygnus.com)
 624
 625         * interp.c (hash): Make this an inline function
 626         when compiling with GCC.  Simplify.
 627         * simpos.c: Explicitly include "sys/syscall.h".  Remove
 628         some #if 0'd code.  Enable more emulated syscalls.
 629
 630 Wed Sep  4 01:48:55 1996  Jeffrey A Law  (law@cygnus.com)
 631
 632         * interp.c: Fix sign bit handling for add and sub instructions.
 633
 634 Tue Sep  3 10:20:30 1996  Jeffrey A Law  (law@cygnus.com)
 635
 636         * gencode.c: Fix various indention & style problems.
 637         Remove test code.  Remove #if 0 code.
 638         * interp.c: Provide prototypes for all static functions.
 639         Fix minor indention problems.
 640         (sim_open, sim_resume): Remove unused variables.
 641         (sim_read): Return type is "int".
 642         * simops.c: Remove unused variables.
 643         (divh): Make result of divide-by-zero zero.
 644         (setf): Initialize result to keep compiler quiet.
 645         (sar instructions): These just clear the overflow bit.
 646         * v850_sim.h: Provide prototypes for put_byte, put_half
 647         and put_word.
 648
 649         * interp.c: OP should be an array of 32bit operands!
 650         (v850_callback): Declare.
 651         (do_format_5): Fix extraction of OP[0].
 652         (sim_size): Remove debugging printf.
 653         (sim_set_callbacks): Do something useful.
 654         (sim_stop_reason): Gross hacks to get c-torture running.
 655         * simops.c: Simplify code for computing targets of bCC
 656         insns.   Invert 's' bit if 'ov' bit is set for some
 657         instructions.  Fix 'cy' bit handling for numerous
 658         instructions.  Make the simulator stop when a halt
 659         instruction is encountered.  Very crude support for
 660         emulated syscalls (trap 0).
 661         * v850_sim.h: Include "callback.h" and declare
 662         v850_callback.  Items in the operand array are 32bits.
 663
 664 Sun Sep  1 22:35:35 1996  Jeffrey A Law  (law@cygnus.com)
 665
 666         * interp.c (sim_resume): Fix code to check for a format 3
 667         opcode.
 668         * simops.c: bCC insns only argument is a constant, not a
 669         register value (duh...)
 670
 671 Fri Aug 30 10:33:49 1996  Jeffrey A Law  (law@cygnus.com)
 672
 673         * simops.c: Fix "not1" and "set1".
 674
 675         * simops.c: Don't forget to initialize temp for
 676         "ld.h" and "ld.w"
 677
 678         * interp.c: Remove various debugging printfs.
 679
 680         * simops.c: Fix satadd, satsub boundary case handling.
 681
 682         * interp.c (hash): Fix.
 683         * interp.c (do_format_8): Get operands correctly and
 684         call the target function.
 685         * simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".
 686
 687 Thu Aug 29 13:53:29 1996  Jeffrey A Law  (law@cygnus.com)
 688
 689         * interp.c (do_format_4): Get operands correctly and
 690         call the target function.
 691         * simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
 692         "sst.h", and "sst.w".
 693
 694         * v850_sim.h: The V850 doesn't have split I&D spaces.  Change
 695         accordingly.  Remove many unused definitions.
 696         * interp.c: The V850 doesn't have split I&D spaces.  Change
 697         accordingly.
 698         (get_longlong, get_longword, get_word): Deleted.
 699         (write_longlong, write_longword, write_word): Deleted.
 700         (get_operands): Deleted.
 701         (get_byte, get_half, get_word): New functions.
 702         (put_byte, put_half, put_word): New functions.
 703         * simops.c: Remove unused functions.  Rough cut at
 704         "ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.
 705
 706         * v850_sim.h (struct _state): Remove "psw" field.  Add
 707         "sregs" field.
 708         (PSW): Remove bogus definition.
 709         * simops.c: Change condition code handling to use the psw
 710         register within the sregs array.  Handle "ldsr" and "stsr".
 711
 712         * simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".
 713
 714         * interp.c (do_format_5): Get operands correctly and
 715         call the target function.
 716         (sim_resume): Don't do a PC update for format 5 instructions.
 717         * simops.c: Handle "jarl" and "jmp" instructions.
 718
 719         * simops.c: Fix minor typos.  Handle "cmp", "setf", "tst"
 720         "di", and "ei" instructions correctly.
 721
 722         * interp.c (do_format_3): Get operands correctly and call
 723         the target function.
 724         * simops.c: Handle bCC instructions.
 725
 726         * simops.c: Add condition code handling to shift insns.
 727         Fix minor typos in condition code handling for other insns.
 728
 729         * Makefile.in: Fix typo.
 730         * simops.c: Add condition code handling to "sub" "subr" and
 731         "divh" instructions.
 732
 733         * interp.c (hash): Update to be more accurate.
 734         (lookup_hash): Call hash rather than computing the hash
 735         code here.
 736         (do_format_1_2): Handle format 1 and format 2 instructions.
 737         Get operands correctly and call the target function.
 738         (do_format_6): Get operands correctly and call the target
 739         function.
 740         (do_formats_9_10): Rough cut so shift ops will work.
 741         (sim_resume): Tweak to deal with format 1 and format 2
 742         handling in a single funtion.  Don't update the PC
 743         for format 3 insns.  Fix typos.
 744         * simops.c: Slightly reorganize.  Add condition code handling
 745         to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
 746         and "not" instructions.
 747         * v850_sim.h (reg_t): Registers are 32bits.
 748         (_state): The V850 has 32 general registers.  Add a 32bit
 749         psw and pc register too.  Add accessor macros
 750
 751         * Makefile.in, interp.c, v850_sim.h: Bring over endianness
 752         changes from the d10v simulator.
 753
 754         * simops.c: Add shift support.
 755
 756         * simops.c: Add multiply & divide support.  Abort for system
 757         instructions.
 758
 759         * simops.c: Add logicals, mov, movhi, movea, add, addi, sub
 760         and subr.  No condition codes yet.
 761
 762 Wed Aug 28 13:53:22 1996  Jeffrey A Law  (law@cygnus.com)
 763
 764         * ChangeLog, Makefile.in, configure, configure.in, v850_sim.h,
 765         gencode.c, interp.c, simops.c: Created.
 766