sim/v850/ChangeLog

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