sim/v850/ChangeLog

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