sim/v850/ChangeLog

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