sim/v850/ChangeLog

   1 Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * sim-main.h (struct _sim_cpu): Add psw_mask so that reserved bits
   4         can be masked out.
   5
   6         * simops.c (OP_2007E0, OP_4007E0): Move "ldsr", "stsr"
   7         instructions from here.
   8         * v850.igen (ldsr, stsr): To here.  Mask out reserved bits when
   9         setting PSW.
  10
  11         * interp.c (sim_open): Set psw_mask if machine known.
  12
  13 Tue Sep 16 10:20:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  14
  15 start-sanitize-v850e
  16         * v850-dc: Add rule to diferentiate between breakpoint and divh.
  17         * v850.igen (break): New instruction, breakpoint simulator.
  18
  19 end-sanitize-v850e
  20         * v850.igen (breakpoint): Enable.  Change to a 32bit instruction.
  21
  22 start-sanitize-v850e
  23 Mon Sep 15 18:44:05 1997  Jim Wilson  <wilson@cygnus.com>
  24
  25         * simops.c (Multiply64): Don't store into register zero.
  26
  27 start-sanitize-v850e
  28 Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  29
  30         * Makefile.in (semantics.o): Add dependency.
  31
  32         * sim-main.h (SAVE_1, SAVE_2): Perform backward compatible save,
  33         do not adjust CIA/NIA.
  34
  35 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  36
  37 start-sanitize-v850eq
  38         * simops.c (OP_300, OP_400, OP_70): Make behavour depend on PSW[US].
  39
  40         * simops.c: Move "divun", "sld.bu", "divhn", "divhun", "divn",
  41         "divun", "pushml" code from here to v850.igen.
  42         (divun): Make global.
  43         (type3_regs): Make global
  44
  45         * v850.igen: Move simops.c code to here.
  46
  47         * interp.c (sim_create_inferior): For v850eq set US bit by
  48         default.
  49
  50 end-sanitize-v850eq
  51 start-sanitize-v850e
  52         * interp.c (sim_open): Don't set arch, now set by
  53         sim_analyze_program.
  54
  55 end-sanitize-v850e
  56         * configure: Regenerated to track ../common/aclocal.m4 changes.
  57
  58 Mon Sep 15 14:39:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  59
  60         * simops.c (op_types): Move from here.
  61         sim-main.h: To here.
  62
  63         * sim-main.h (trace_input, trace_output), simops.c: Make global.
  64
  65         * simops.c (OP_60): Move "jmp" code from here.
  66         * v850.igen (jmp): To here.
  67
  68 start-sanitize-v850eq
  69         * simops.c (OP_60): Move "sld.bu" code from here.
  70         * v850.igen (sld.bu): To here.
  71
  72 end-sanitize-v850eq
  73 Fri Sep 12 15:11:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  74
  75 start-sanitize-v850eq
  76         * v850.igen (prepare, ...): Add to v850eq architecture.
  77
  78 end-sanitize-v850eq
  79 start-sanitize-v850e
  80         * interp.c (sim_open): Default to v850eq.
  81
  82 end-sanitize-v850e
  83 start-sanitize-v850eq
  84
  85         * interp.c (sim_open): Default to v850e.
  86 end-sanitize-v850eq
  87         * sim-main.h (signal.h): Include.
  88
  89         * v850.igen (illegal): Report/halt illegal instructions.
  90
  91         * Makefile.in (SIM_EXTRA_CFLAGS): Add SIM_RESERVED_BITS.
  92
  93         * configure.in: Add reserved bits option.
  94         * configure: Regenerate.
  95
  96 Thu Sep 11 08:40:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  97
  98         * interp.c (sim_open): Use sim_do_commandf instead of asprintf.
  99
 100         * sim-main.h (INSN_NAME):
 101
 102         * Makefile.in (INCLUDE): Add SIM_EXTRA_DEPS.
 103         (SIM_EXTRA_DEPS): Add itable.h
 104         (tmp-gencode): Does not depend on simops.h
 105
 106         * sim-main.h (itable.h): Include.
 107         (MAX_INSNS, INSN_NAME): Define.
 108
 109         * interp.c: Compute inttype from the interrupt_names index that
 110         was passed in.
 111
 112 Wed Sep 10 10:25:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 113
 114         * simops.c (trace_input): Use trace_printf instead of
 115         sim_io_printf.
 116         (trace_output): Ditto.
 117         (trace_input): Only trace when TRACE_ALU_P.  Delete code
 118         disasembling instruction.
 119         (trace_output): Only trace when TRACE_ALU_P.
 120
 121 Tue Sep  9 01:29:50 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 122
 123         * simops.c (trace_input, trace_output): Use sim_io_printf.
 124         (OP_620): Pass correct argument to trace.
 125         (OP_E607E0): Ditto.
 126         (trace_input): Obtain prog_bfd, text_start et.al from simulator
 127         struct.
 128
 129 Mon Sep  8 21:03:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 130
 131         * v850.igen: New file.
 132         * v850-dc: New file.
 133
 134 Mon Sep  8 18:33:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 135
 136
 137         * sim-main.h (SEXT16): Delete, use EXTEND16.
 138         (SEXT8): Delete, use EXTEND8.
 139         (SEXT32): Delete, used?
 140         (SEXT40, SEXT44, SEXT64): Use UNSIGNED64 for constants, not ...LL.
 141         (WITH_TARGET_WORD_MSB): Define as 31. v850 little bit endian.
 142
 143         * simops.c: Use EXTEND15 from sim-bits instead of SEXT16.
 144
 145         * sim-main.h (DEBUG_TRACE, DEBUG_VALUES, v850_debug): Delete,
 146         replace with TRACE_INSN_P and TRACE_ALU_P.
 147
 148         * simops.c (trace_input, trace_output): Update.
 149
 150         * interp.c (sim_engine_run): Delete.
 151         (lookup_hash): Delete.
 152         (sim_open): Do not fill hash table.
 153         (sim_trace): Delete.
 154
 155 Fri Sep  5 17:04:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 156
 157         * simops.c (OP_FFFF): Use sim_engine_halt.
 158         (OP_12007E0): Ditto.
 159         (OP_10007E0): Ditto.
 160
 161         * sim-main.h (struct sim_cpu): Delete member exception. Using
 162         sim-engine et.al.
 163
 164         * interp.c (sim_info): Do not do anything in sim-info.
 165         (sim_stop): Delete, replace with sim-stop.
 166         (sim_stop_reason): Delete, replace with sim-reason.
 167
 168         * sim-main.h (WITH_WATCHPOINTS): Define.
 169         (WITH_MODULO_MEMORY): Define
 170
 171         * Makefile.in (SIM_OBJS): Add sim-resume, sim-watch, sim-stop,
 172         sim-reason.
 173
 174         * interp.c (enum interrupt_cond_type): Delete.
 175         (struct interrupt_generator): Delete.
 176         (enum interrupt_type): Drop int_none.
 177         (sim_open): Initialize WATCHPOINT module.
 178         (sim_resume, sim_run): Rename sim_resume to sim_run.
 179         (sim_engine_run): Replace interrupt code with call to sim-events.
 180         (sim_set_interrupt): Delete.
 181         (sim_parse_number): Delete.
 182
 183 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 184
 185         * configure: Regenerated to track ../common/aclocal.m4 changes.
 186
 187 Thu Sep  4 18:11:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 188
 189         * simops.c (fetch_argv): New function, fetch a arg vector from
 190         simulator memory.
 191
 192         * configure.in: Check for fork, execve, execv.
 193         * configure: Regenerate.
 194
 195         * interp.c (sim_store_register, sim_fetch_register): Use H2T_4 and
 196         T2H_4 for byte swapping.
 197
 198         * sim-main.h, interp.c (get_word, get_half, get_byte, put_word,
 199         put_half, put_byte): Delete.
 200
 201         * Makefile.in (SIM_OBJS): Add sim-memopt.o module.
 202
 203         * sim-main.h (load_mem, store_mem): Redefine as macros.
 204         (IMEM, IMEM_IMMED): New macros - fetch instructions.
 205
 206         * simops.c (OP_10007E0): For SYS_read, SYS_write, SYS_open
 207         transfer data via a buffer.
 208         (fetch_str): New function, fetch string from memory.
 209
 210         * Makefile.in (SIM_OBJS): Add sim-hrw.o module.
 211
 212         * interp.c (sim_open): Establish memory maps using sim-memopt.c
 213         via sim_do_command.
 214         (sim_do_command): Print error if memory-map command is used. Call
 215         sim_args_command.
 216         (map): Delete, replaced by sim-core.
 217         (sim_memory_init): Delete, replaced by sim-core.
 218         (sim_set_memory_map): Delete, replaced by sim-memopt.
 219         (load_mem): Delete, replaced by sim-core.
 220         (store_mem): Delete, replaced by sim-core.
 221         (sim_write): Delete, replaced by sim-hrw.
 222         (sim_read): Delete, replaced by sim-hrw.
 223
 224         * sim-main.h (struct sim_state): Remove memory members, using
 225         sim-core.c
 226
 227 Wed Sep  3 10:18:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 228
 229         * sim-main.h: Replace SIM_HAVE_FLATMEM with mem ptr.
 230         * interp.c (map): Do not add to a void pointer.
 231
 232         * Makefile.in (INCLUDE): Add sim-main.h
 233
 234         * configure.in: Check for time.h
 235         * configure: Re-generate.
 236
 237         * interp.c (struct interrupt_generator): Make time unsigned long,
 238         address SIM_ADDR.
 239         (sim_resume): Make oldpc SIM_ADDR.
 240         (struct hash_entry): Make mask/opcode unsigned.
 241
 242         * v850_sim.h (struct simops ): Make opcode and mask unsigned.
 243
 244         * simops.c (utime.h): Include if available.
 245         (OP_10007E0): Check for UTIME function.
 246         (divun): Put parentheses around shift argument.
 247         (OP_640): Put parentheses around shift argument, was wrong.
 248         (OP_107F0): Return something.
 249
 250         * interp.c (sim_parse_number): Use strtoul not strtol.
 251         (sim_resume): Use sim_elapsed_time_get to keep track of the time.
 252
 253         * configure.in (SIM_AC_OPTION_WARNINGS): Add.
 254         (SIM_AC_OPTION_ENDIAN): Set to hardwired big.
 255         (SIM_AC_OPTION_HOST_ENDIAN): Add.
 256         (AC_CHECK_FUNCS): Add utime.
 257         (AC_CHECK_HEADERS): Add stdlib.h, string.h, strings.h, utime.h
 258         configure: Regenerate.
 259
 260
 261         * Makefile.in (SIM_RUN_OBJS): Use nrun.o.
 262         (SIM_OBJS): Add sim-io.o, sim-hload.o, sim-utils.o, sim-options.o,
 263         sim-config.o, sim-module.o, sim-events.o, sim-core.o,
 264         sim-endian.o, sim-engine.o, sim-trace.o, sim-profile.o
 265         (SIM_ENDIAN, SIM_WARNGINS): Define.
 266
 267         * simops.c (OP_10007E0): Use sim_io_* for transfers.
 268
 269         * interp.c (sim_resume): Pass sd around.
 270
 271         * simops.c (sim-main.h): Include.
 272
 273         * gencode.c (write_template): Generate #include sim-main.h.
 274         (write_opcodes): Ditto.
 275
 276         * interp.c (prog_bfd, prog_bfd_was_opened_p): Delete.
 277         (v850_callback): Ditto.
 278         (sim_kind, myname): Ditto.
 279         (lookup_hash): Pass SD. Use sim_io_error.
 280         (sim_set_memory_map): Pass in SD, use.
 281         (init_system): Pass in SD, use.
 282         (sim_open): Update.
 283         (sim_set_profile): Delete.
 284         (sim_set_profile_size): Delete.
 285         (do_interrupt): Pass in SD, use.
 286         (sim_info): Use sim_io_printf.
 287         (sim_create_inferior): Reset registers.  Set PC from prog_bfd
 288         argument.
 289         (sim_load): Delete, use common/sim-hload.c
 290         (sim_size): Rename to sim_memory_init.
 291         (sim_write): Remove call to init_system.
 292         (init_system): Delete.
 293         (sim_set_callbacks): Delete.
 294         (sim_set_interrupt): Pass in SD, use.
 295         (start_time): Delete.
 296
 297         * v850_sim.h: Remove everything except `struct simops' from here.
 298         * sim-main.h: Move most to here.
 299         * gencode.c: Move #includes to here.
 300
 301         * sim-main.h(struct _sim_cpu): Rename struct _state.
 302         (#define PC, et.al.): Update
 303         (v850_callback): Delete.  Replaced with SIM_DESC arg.
 304         (int8, uint8, int16, uint16, int32, uint32): Define types using
 305         unsigned8 et.al from common/sim-types.h.
 306         * sim-main.h (State): Define as STATE_CPU.
 307
 308 Mon Sep  1 12:07:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 309
 310         * configure.in: Check for time, chmod.
 311         * configure: Regenerate.
 312         * simops.c (SYS_time, SYS_chmod): Use HAVE_TIME, HAVE_CHMOD.
 313
 314         * simops.c (../../libgloss/v850/sys/syscall.h): Include instead of
 315         sys/syscall.h.
 316         (OP_10007E0): Check the existance each SYS_* macro independantly.
 317
 318         * v850_sim.h (SIGQUIT, SIGTRAP): Only define if missing.
 319
 320 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 321
 322         * configure: Regenerated to track ../common/aclocal.m4 changes.
 323         * config.in: Ditto.
 324
 325 Tue Aug 26 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 326
 327         * interp.c (sim_kill): Delete.
 328         (sim_create_inferior): Add ABFD argument.
 329         (sim_load): Move setting of PC from here.
 330         (sim_create_inferior): To here.
 331
 332 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 333
 334         * configure: Regenerated to track ../common/aclocal.m4 changes.
 335         * config.in: Ditto.
 336
 337 Mon Aug 25 11:31:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 338
 339         * interp.c (sim_open): Add ABFD argument.
 340
 341 start-sanitize-v850e
 342 Fri Aug 22 10:39:28 1997  Nick Clifton  <nickc@cygnus.com>
 343
 344         * simops.c (bsh): Only set CY flag if either of the bottom
 345         bytes is zero.
 346
 347         * simops.c (prepare, dispose): Lower numbered
 348         registers go to higher numbered address.
 349
 350         * simops.c (unsigned divide instructions): S bit set if result has
 351         top bit set.
 352
 353 start-sanitize-v850eq
 354         * simops.c (pushml, pushmh, popml, popmh): Lower numbered
 355         registers go to higher numbered address.
 356 end-sanitize-v850eq
 357 end-sanitize-v850e
 358
 359 Wed Aug 20 13:56:35 1997  Nick Clifton  <nickc@cygnus.com>
 360
 361         * simops.c (OP_107E0, OP_107F0, OP_307E0, OP_307F0): Use correct
 362         interpretation of SR bit in list18 structure.
 363 start-sanitize-v850eq
 364         (divn, divun): New functions to perform N step divide functions.
 365 end-sanitize-v850eq
 366
 367 start-sanitize-v850eq
 368 Mon Aug 18 10:59:02 1997  Nick Clifton  <nickc@cygnus.com>
 369
 370         * simops.c (OP_300, OP_400, OP_60, OP_70): Support variant opcodes
 371         with US bit set in the PSW.
 372 start-sanitize-v850eq
 373
 374 Wed Aug 13 19:06:55 1997  Nick Clifton  <nickc@cygnus.com>
 375
 376         * interp.c (sim_resume): Opcode functions return amount to be
 377         added to PC and all opcodes take a standard format in the OP[]
 378         array.
 379
 380         (do_format_*): Functions removed.
 381
 382         * v850_sim.h (SP, EP): New register mnemonics.
 383
 384         * gencode.c (write_header): Functions prototypes return an
 385         integer.
 386
 387         * simops.c: Opcode functions return amount to be added to PC.
 388
 389 start-sanitize-v850e
 390         * v850_sim.h (CTPC, CTPSW, CTBP): New register mnemonics.
 391
 392         * simops.c: Add support for v850e instructions.
 393
 394         * .Sanitize (Do-first, Do-last): Add support for keep-v850e
 395         command line option.
 396
 397 end-sanitize-v850e
 398
 399 start-sanitize-v850eq
 400         * .Sanitize (Do-first, Do-last): Add support for keep-v850eq
 401         command line option.
 402
 403         * simops.c: Add support for v850eq instructions.
 404 end-sanitize-v850eq
 405
 406 Tue May 20 10:24:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 407
 408         * interp.c (sim_open): Add callback argument.
 409         (sim_set_callbacks): Delete SIM_DESC argument.
 410
 411 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 412
 413         * configure: Regenerated to track ../common/aclocal.m4 changes.
 414
 415 Wed Apr 23 17:20:16 1997  Doug Evans  <dje@canuck.cygnus.com>
 416
 417         * interp.c (prog_bfd_was_opened_p): New static local.
 418         (prog_bfd): New global variable.
 419         (sim_open): Undo patch to add -E support.
 420         (sim_close): Close prog_bfd if sim_load opened it.
 421         (sim_load): Record bfd of loaded file in prog_bfd.
 422         * simops.c (prog_bfd): Renamed from exec_bfd.
 423
 424 Fri Apr 18 14:17:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 425
 426         * interp.c (sim_stop): Stub function.
 427
 428 Thu Apr 17 03:53:18 1997  Doug Evans  <dje@canuck.cygnus.com>
 429
 430         * Makefile.in (SIM_OBJS): Add sim-load.o.
 431         * interp.c (sim_kind, myname): New static locals.
 432         (sim_open): Set sim_kind, myname.  Ignore -E arg.
 433         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 434         load file into simulator.  Set start address from bfd.
 435         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 436
 437 Wed Apr 16 19:53:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 438
 439         * simops.c (OP_10007E0): Only provide system calls SYS_execv,
 440         SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
 441
 442 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 443
 444         * configure: Regenerated to track ../common/aclocal.m4 changes.
 445         * config.in: Ditto.
 446
 447 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 448
 449         * interp.c (sim_open): New arg `kind'.
 450
 451         * configure: Regenerated to track ../common/aclocal.m4 changes.
 452
 453 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 454
 455         * configure: Regenerated to track ../common/aclocal.m4 changes.
 456
 457 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 458
 459         * configure: Regenerated to track ../common/aclocal.m4 changes.
 460
 461 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 462
 463         * configure: Re-generate.
 464
 465 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 466
 467         * configure: Regenerate to track ../common/aclocal.m4 changes.
 468
 469 Thu Mar 13 13:00:54 1997  Doug Evans  <dje@canuck.cygnus.com>
 470
 471         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 472         in argv form.
 473         (other sim_*): New SIM_DESC argument.
 474
 475 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 476
 477         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 478         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 479         * configure.in: sinclude ../common/aclocal.m4.
 480         * configure: Regenerated.
 481
 482 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 483
 484         * configure configure.in Makefile.in:  Update to new configure
 485         scheme which is more compatible with WinGDB builds.
 486         * configure.in:  Improve comment on how to run autoconf.
 487         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 488         * Makefile.in:  Use autoconf substitution to install common
 489         makefile fragment.
 490
 491 Mon Jan 20 16:05:34 1997  Michael Meissner  <meissner@tiktok.cygnus.com>
 492
 493         * simops.c (OP_{E0,2E0,6E0}): The multiply operations sign extend,
 494         not zero extend.
 495
 496 Tue Jan 14 17:06:03 1997  Stu Grossman  (grossman@critters.cygnus.com)
 497
 498         * simops.c:  Put ifdefs around things to make MSVC happy.  Get rid
 499         of unistd.h.  Disable SYS_stat, SYS_chown, SYS_time, SYS_times,
 500         SYS_gettimeofday and SYS_utime from MSVC.
 501
 502 Tue Dec 31 18:11:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 503
 504         * simops.c (OP_10007E0): Know that kill encodes the signal number
 505         via: 0xdead0000 | signal and turn it back into a signal.
 506
 507 Fri Dec 27 14:44:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 508
 509         * v850_sim.h (SIG_V850_EXIT): Define as -1.
 510
 511         * interp.c (sim_open): Cast calloc function.
 512         (sim_stop_reason): If signal is SIG_V850_EXIT, inform gdb the
 513         program exited with the appropriate exit code.
 514         (sim_set_interrupt): Declare buildargv.
 515
 516         * simops.c (OP_10007E0): Make exit signal normal exit.  Make time
 517         type correct and work on big endian systems.
 518
 519 Wed Nov 20 02:18:44 1996  Doug Evans  <dje@canuck.cygnus.com>
 520
 521         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 522         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
 523         * configure.in: Simplify using macros in ../common/aclocal.m4.
 524         Call AC_CHECK_HEADERS(unistd.h).
 525         * configure: Regenerated.
 526         * config.in: New file.
 527         * simops.c: #include "config.h".  #include <unistd.h> if present.
 528
 529 Sun Nov  3 23:02:54 1996  Stan Shebs  <shebs@andros.cygnus.com>
 530
 531         * v850_sim.h (State): New slots dummy_mem, pending_nmi.
 532         (EIPC, etc): New macros for system registers.
 533         * simops.c, interp.c: Use everywhere.
 534
 535         * interp.c: Add support for interrupts issued by interrupt
 536         generators, either PC- or time-based.  Controlled by simulator
 537         command "sim interrupt".
 538
 539         * interp.c: Add support for variable-size allocation of memory,
 540         via simulator command "sim memory-map".
 541         (map): Issue SIGSEGV for references to invalid memory regions.
 542
 543 Thu Oct 31 14:44:10 1996  Gavin Koch  <gavin@cygnus.com>
 544
 545         * simops.c: Include <sys/time.h> for struct timeval and
 546         struct timezone.
 547
 548 Wed Oct 30 08:49:10 1996  Jeffrey A Law  (law@cygnus.com)
 549
 550         * simops.c (OP_10007E0): Handle SYS_times and SYS_gettimeofday.
 551
 552         * simops.c (OP_10007E0): Handle SYS_time.
 553
 554 Tue Oct 29 14:22:55 1996  Jeffrey A Law  (law@cygnus.com)
 555
 556         * simops.c: Include <sys/stat.h>.
 557         (OP_10007E0): Handle SYS_stat.
 558
 559 Thu Oct 24 12:26:35 1996  Jeffrey A Law  (law@cygnus.com)
 560
 561         * simops.c (OP_10007E0): Don't declare errno.
 562
 563         * simops.c (OP_500): Mask off low bit in displacement
 564         for sld.w.
 565         (OP_501): Similarly.
 566
 567         * simops.c (OP_500): Fix displacement handling for sld.w.
 568         (OP_501): Similarly for sst.w.
 569
 570         * simops.c (trace_input): Remove all references to SEXT7.
 571         (OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
 572         is zero extended for sst/sld instructions.
 573         * v850_sim.h (SEX7): Delete.  It's no longer needed (and it
 574         was incorrect anyway).
 575
 576 Thu Oct 24 10:33:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 577
 578         * Makefile.in:  Get rid of srcroot.  Set all INSTALL macros via
 579         autoconf.
 580         * gencode.c (write_opcodes):  Pad operands field to account for
 581         MSVC braindamage.
 582         * simops.c:  Include errno.h.  Exclude SYS_chown, since MSVC
 583         doesn't support it.  (Why is this here in the first place?!?)
 584         * v850_sim.h:  Get rid of 64 bit defs.  Also, get rid of #elif's.
 585         Change number of operands in struct simops from 9 to 6.  Define
 586         SIGTRAP and SIGQUIT for MSVC.
 587
 588 Tue Oct 15 16:19:51 1996  Stu Grossman  (grossman@critters.cygnus.com)
 589
 590         * interp.c (MEM_SIZE):  It's now bytes, not a power of 2.
 591         * (map):  Add support for external mem in the 1->2 meg range.
 592         Also, abort() when memory access is way out of bounds.  (Better to
 593         die than to give wrong result.  (This will be fixed later.))
 594         * (sim_size):  MEM_SIZE is now bytes, not shift factor.
 595
 596 Tue Oct  1 15:53:24 1996  Gavin Koch <gavin@cygnus.com>
 597
 598         * simops.c (trace_input): Swapped order of operands for output
 599         output of OP_IMM_REG.  Changed the fetching of the operands for
 600         OP_LOAD32, and OP_STORE32 to work like op-function.
 601
 602 Mon Sep 30 15:46:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 603
 604         * interp.c:  Move includes of remote-sim.h and callback.h to
 605         v850-sim.h.
 606         * (lookup_hash): Add PC to report of hash failure.
 607         * (map load_mem store_mem):  New memory subsystem.  Models V851
 608         memory system.
 609         * (sim_write sim_read):  Use new memory subsystem.
 610         * (sim_resume):  Don't load and save PC into EIPC anymore.  Needed
 611         to make user-defined traps work right.
 612         * simops.c (OP_*):  Use new memory subsystem.
 613         * (OP_14007E0 (reti)):  Implement reti.
 614         * (OP_14996E0 (trap)):  Implement user-defined traps.  Move I/O to
 615         trap 31.  Use new memory subsystem.
 616         * v850_sim.h:  Prototypes for load_mem, store_mem and map.  Use
 617         load_mem in RLW macro.
 618
 619 Fri Sep 27 18:34:09 1996  Stu Grossman  (grossman@critters.cygnus.com)
 620
 621         * gencode.c (write_opcodes):  Output hex values for opcode mask
 622         and patterns.
 623         * interp.c (sim_resume):  Save and restore PC from the appropriate
 624         register.
 625         * (sim_fetch_register sim_store_register):  Fix byte-order problem
 626         with reading and writing registers.
 627         * simops.c (OP_FFFF):  Implement pseudo-breakpoint insn.
 628
 629 Fri Sep 27 17:42:37 1996  Jeffrey A Law  (law@cygnus.com)
 630
 631         * simops.c (trace_input): Fix thinko.
 632
 633 Wed Sep 18 09:54:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 634
 635         * simops.c (exec_bfd): Rename from sim_bfd.
 636         (trace_input): Ditto.
 637
 638 Thu Sep 12 12:03:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 639
 640         * simops.c (trace_input): Use find_nearest_line to print line
 641         number, function name or file name of PC.
 642
 643 Wed Sep 11 16:44:37 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 644
 645         * simops.c: Add tracing support.  Use SEXTxx macros instead of
 646         doing hardwired shifts.
 647
 648         * configure.in (--enable-sim-cflags): Add switch to add additional
 649         flags to simulator buld.  If --enable-sim-cflags=trace, turn on
 650         tracing.
 651         * configure: Regenerate.
 652
 653         * Makefile.in: Don't require a VPATH capable make if configuring
 654         in the same directory.  Don't use CFLAGS for configuration flags.
 655         Add flags from --enable-sim-cflags.  Support canadian cross
 656         builds.  Rebuild whole simulator if include files change.
 657
 658         * interp.c (v850_debug): New global for debugging.
 659         (lookup_hash,sim_size,sim_set_profile): Use
 660         printf_filtered callback, instead of calling printf directly.
 661         (sim_{open,trace}): Enable tracing if -t and compiled for tracing.
 662
 663         * v850_sim.h: Use limits.h to set the various sized types.
 664         (SEXT{5,7,16,22}): New macros.
 665
 666 Mon Sep  9 20:50:46 1996  Jeffrey A Law  (law@cygnus.com)
 667
 668         * interp.c (hash): Make this an inline function
 669         when compiling with GCC.  Simplify.
 670         * simpos.c: Explicitly include "sys/syscall.h".  Remove
 671         some #if 0'd code.  Enable more emulated syscalls.
 672
 673 Wed Sep  4 01:48:55 1996  Jeffrey A Law  (law@cygnus.com)
 674
 675         * interp.c: Fix sign bit handling for add and sub instructions.
 676
 677 Tue Sep  3 10:20:30 1996  Jeffrey A Law  (law@cygnus.com)
 678
 679         * gencode.c: Fix various indention & style problems.
 680         Remove test code.  Remove #if 0 code.
 681         * interp.c: Provide prototypes for all static functions.
 682         Fix minor indention problems.
 683         (sim_open, sim_resume): Remove unused variables.
 684         (sim_read): Return type is "int".
 685         * simops.c: Remove unused variables.
 686         (divh): Make result of divide-by-zero zero.
 687         (setf): Initialize result to keep compiler quiet.
 688         (sar instructions): These just clear the overflow bit.
 689         * v850_sim.h: Provide prototypes for put_byte, put_half
 690         and put_word.
 691
 692         * interp.c: OP should be an array of 32bit operands!
 693         (v850_callback): Declare.
 694         (do_format_5): Fix extraction of OP[0].
 695         (sim_size): Remove debugging printf.
 696         (sim_set_callbacks): Do something useful.
 697         (sim_stop_reason): Gross hacks to get c-torture running.
 698         * simops.c: Simplify code for computing targets of bCC
 699         insns.   Invert 's' bit if 'ov' bit is set for some
 700         instructions.  Fix 'cy' bit handling for numerous
 701         instructions.  Make the simulator stop when a halt
 702         instruction is encountered.  Very crude support for
 703         emulated syscalls (trap 0).
 704         * v850_sim.h: Include "callback.h" and declare
 705         v850_callback.  Items in the operand array are 32bits.
 706
 707 Sun Sep  1 22:35:35 1996  Jeffrey A Law  (law@cygnus.com)
 708
 709         * interp.c (sim_resume): Fix code to check for a format 3
 710         opcode.
 711         * simops.c: bCC insns only argument is a constant, not a
 712         register value (duh...)
 713
 714 Fri Aug 30 10:33:49 1996  Jeffrey A Law  (law@cygnus.com)
 715
 716         * simops.c: Fix "not1" and "set1".
 717
 718         * simops.c: Don't forget to initialize temp for
 719         "ld.h" and "ld.w"
 720
 721         * interp.c: Remove various debugging printfs.
 722
 723         * simops.c: Fix satadd, satsub boundary case handling.
 724
 725         * interp.c (hash): Fix.
 726         * interp.c (do_format_8): Get operands correctly and
 727         call the target function.
 728         * simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".
 729
 730 Thu Aug 29 13:53:29 1996  Jeffrey A Law  (law@cygnus.com)
 731
 732         * interp.c (do_format_4): Get operands correctly and
 733         call the target function.
 734         * simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
 735         "sst.h", and "sst.w".
 736
 737         * v850_sim.h: The V850 doesn't have split I&D spaces.  Change
 738         accordingly.  Remove many unused definitions.
 739         * interp.c: The V850 doesn't have split I&D spaces.  Change
 740         accordingly.
 741         (get_longlong, get_longword, get_word): Deleted.
 742         (write_longlong, write_longword, write_word): Deleted.
 743         (get_operands): Deleted.
 744         (get_byte, get_half, get_word): New functions.
 745         (put_byte, put_half, put_word): New functions.
 746         * simops.c: Remove unused functions.  Rough cut at
 747         "ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.
 748
 749         * v850_sim.h (struct _state): Remove "psw" field.  Add
 750         "sregs" field.
 751         (PSW): Remove bogus definition.
 752         * simops.c: Change condition code handling to use the psw
 753         register within the sregs array.  Handle "ldsr" and "stsr".
 754
 755         * simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".
 756
 757         * interp.c (do_format_5): Get operands correctly and
 758         call the target function.
 759         (sim_resume): Don't do a PC update for format 5 instructions.
 760         * simops.c: Handle "jarl" and "jmp" instructions.
 761
 762         * simops.c: Fix minor typos.  Handle "cmp", "setf", "tst"
 763         "di", and "ei" instructions correctly.
 764
 765         * interp.c (do_format_3): Get operands correctly and call
 766         the target function.
 767         * simops.c: Handle bCC instructions.
 768
 769         * simops.c: Add condition code handling to shift insns.
 770         Fix minor typos in condition code handling for other insns.
 771
 772         * Makefile.in: Fix typo.
 773         * simops.c: Add condition code handling to "sub" "subr" and
 774         "divh" instructions.
 775
 776         * interp.c (hash): Update to be more accurate.
 777         (lookup_hash): Call hash rather than computing the hash
 778         code here.
 779         (do_format_1_2): Handle format 1 and format 2 instructions.
 780         Get operands correctly and call the target function.
 781         (do_format_6): Get operands correctly and call the target
 782         function.
 783         (do_formats_9_10): Rough cut so shift ops will work.
 784         (sim_resume): Tweak to deal with format 1 and format 2
 785         handling in a single funtion.  Don't update the PC
 786         for format 3 insns.  Fix typos.
 787         * simops.c: Slightly reorganize.  Add condition code handling
 788         to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
 789         and "not" instructions.
 790         * v850_sim.h (reg_t): Registers are 32bits.
 791         (_state): The V850 has 32 general registers.  Add a 32bit
 792         psw and pc register too.  Add accessor macros
 793
 794         * Makefile.in, interp.c, v850_sim.h: Bring over endianness
 795         changes from the d10v simulator.
 796
 797         * simops.c: Add shift support.
 798
 799         * simops.c: Add multiply & divide support.  Abort for system
 800         instructions.
 801
 802         * simops.c: Add logicals, mov, movhi, movea, add, addi, sub
 803         and subr.  No condition codes yet.
 804
 805 Wed Aug 28 13:53:22 1996  Jeffrey A Law  (law@cygnus.com)
 806
 807         * ChangeLog, Makefile.in, configure, configure.in, v850_sim.h,
 808         gencode.c, interp.c, simops.c: Created.
 809