sim/v850/ChangeLog

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