sim/mips/ChangeLog

   1 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
   4         constants.
   5         (build_instruction): Ditto for LL.
   6
   7 start-sanitize-tx19
   8 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
   9
  10         * mips/configure.in, mips/gencode: Add tx19/r1900.
  11
  12 end-sanitize-tx19
  13 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
  14
  15         * configure: Regenerated to track ../common/aclocal.m4 changes.
  16
  17 start-sanitize-r5900
  18 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  19
  20         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
  21         for overflow due to ABS of MININT, set result to MAXINT.
  22         (build_instruction): For "psrlvw", signextend bit 31.
  23
  24 end-sanitize-r5900
  25 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  26
  27         * configure: Regenerated to track ../common/aclocal.m4 changes.
  28         * config.in: Ditto.
  29
  30 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  31
  32         * interp.c (sim_open): Add call to sim_analyze_program, update
  33         call to sim_config.
  34
  35 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  36
  37         * interp.c (sim_kill): Delete.
  38         (sim_create_inferior): Add ABFD argument. Set PC from same.
  39         (sim_load): Move code initializing trap handlers from here.
  40         (sim_open): To here.
  41         (sim_load): Delete, use sim-hload.c.
  42
  43         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
  44
  45 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  46
  47         * configure: Regenerated to track ../common/aclocal.m4 changes.
  48         * config.in: Ditto.
  49
  50 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  51
  52         * interp.c (sim_open): Add ABFD argument.
  53         (sim_load): Move call to sim_config from here.
  54         (sim_open): To here.  Check return status.
  55
  56 start-sanitize-r5900
  57         * gencode.c (build_instruction): Do not define x8000000000000000,
  58         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
  59
  60 end-sanitize-r5900
  61 start-sanitize-r5900
  62 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  63
  64         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
  65         "pdivuw" check for overflow due to signed divide by -1.
  66
  67 end-sanitize-r5900
  68 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
  69
  70         * gencode.c (build_instruction): Two arg MADD should
  71         not assign result to $0.
  72
  73 start-sanitize-r5900
  74 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
  75
  76         * gencode.c (build_instruction): For "ppac5" use unsigned
  77         arrithmetic so that the sign bit doesn't smear when right shifted.
  78         (build_instruction): For "pdiv" perform sign extension when
  79         storing results in HI and LO.
  80         (build_instructions): For "pdiv" and "pdivbw" check for
  81         divide-by-zero.
  82         (build_instruction): For "pmfhl.slw" update hi part of dest
  83         register as well as low part.
  84         (build_instruction): For "pmfhl" portably handle long long values.
  85         (build_instruction): For "pmfhl.sh" correctly negative values.
  86         Store half words 2 and three in the correct place.
  87         (build_instruction): For "psllvw", sign extend value after shift.
  88
  89 end-sanitize-r5900
  90 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
  91
  92         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
  93         * sim/mips/configure.in: Regenerate.
  94
  95 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
  96
  97         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
  98         signed8, unsigned8 et.al. types.
  99
 100 start-sanitize-r5900
 101         * gencode.c (build_instruction): For PMULTU* do not sign extend
 102         registers.  Make generated code easier to debug.
 103
 104 end-sanitize-r5900
 105         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 106         hosts when selecting subreg.
 107
 108 start-sanitize-r5900
 109 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 110
 111         * gencode.c (type_for_data_len): For 32bit operations concerned
 112         with overflow, perform op using 64bits.
 113         (build_instruction): For PADD, always compute operation using type
 114         returned by type_for_data_len.
 115         (build_instruction): For PSUBU, when overflow, saturate to zero as
 116         actually underflow.
 117
 118 end-sanitize-r5900
 119 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 120
 121 start-sanitize-r5900
 122         * gencode.c (build_instruction): Handle "pext5" according to
 123         version 1.95 of the r5900 ISA.
 124
 125         * gencode.c (build_instruction): Handle "ppac5" according to
 126         version 1.95 of the r5900 ISA.
 127
 128 end-sanitize-r5900
 129         * interp.c (sim_engine_run): Reset the ZERO register to zero
 130         regardless of FEATURE_WARN_ZERO.
 131         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 132
 133 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 134
 135         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 136         (SignalException): For BreakPoints ignore any mode bits and just
 137         save the PC.
 138         (SignalException): Always set the CAUSE register.
 139
 140 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 141
 142         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 143         exception has been taken.
 144
 145         * interp.c: Implement the ERET and mt/f sr instructions.
 146
 147 start-sanitize-r5900
 148 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 149
 150         * gencode.c (build_instruction): For paddu, extract unsigned
 151         sub-fields.
 152
 153         * gencode.c (build_instruction): Saturate padds instead of padd
 154         instructions.
 155
 156 end-sanitize-r5900
 157 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 158
 159         * interp.c (SignalException): Don't bother restarting an
 160         interrupt.
 161
 162 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 163
 164         * interp.c (SignalException): Really take an interrupt.
 165         (interrupt_event): Only deliver interrupts when enabled.
 166
 167 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 168
 169         * interp.c (sim_info): Only print info when verbose.
 170         (sim_info) Use sim_io_printf for output.
 171
 172 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 173
 174         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 175         mips architectures.
 176
 177 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 178
 179         * interp.c (sim_do_command): Check for common commands if a
 180         simulator specific command fails.
 181
 182 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 183
 184         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 185         and simBE when DEBUG is defined.
 186
 187 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 188
 189         * interp.c (interrupt_event): New function.  Pass exception event
 190         onto exception handler.
 191
 192         * configure.in: Check for stdlib.h.
 193         * configure: Regenerate.
 194
 195         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 196         variable declaration.
 197         (build_instruction): Initialize memval1.
 198         (build_instruction): Add UNUSED attribute to byte, bigend,
 199         reverse.
 200         (build_operands): Ditto.
 201
 202         * interp.c: Fix GCC warnings.
 203         (sim_get_quit_code): Delete.
 204
 205         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 206         * Makefile.in: Ditto.
 207         * configure: Re-generate.
 208
 209         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 210
 211 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 212
 213         * interp.c (mips_option_handler): New function parse argumes using
 214         sim-options.
 215         (myname): Replace with STATE_MY_NAME.
 216         (sim_open): Delete check for host endianness - performed by
 217         sim_config.
 218         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 219         (sim_open): Move much of the initialization from here.
 220         (sim_load): To here.  After the image has been loaded and
 221         endianness set.
 222         (sim_open): Move ColdReset from here.
 223         (sim_create_inferior): To here.
 224         (sim_open): Make FP check less dependant on host endianness.
 225
 226         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 227         run.
 228         * interp.c (sim_set_callbacks): Delete.
 229
 230         * interp.c (membank, membank_base, membank_size): Replace with
 231         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 232         (sim_open): Remove call to callback->init. gdb/run do this.
 233
 234         * interp.c: Update
 235
 236         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 237
 238         * interp.c (big_endian_p): Delete, replaced by
 239         current_target_byte_order.
 240
 241 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 242
 243         * interp.c (host_read_long, host_read_word, host_swap_word,
 244         host_swap_long): Delete. Using common sim-endian.
 245         (sim_fetch_register, sim_store_register): Use H2T.
 246         (pipeline_ticks): Delete.  Handled by sim-events.
 247         (sim_info): Update.
 248         (sim_engine_run): Update.
 249
 250 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 251
 252         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 253         reason from here.
 254         (SignalException): To here. Signal using sim_engine_halt.
 255         (sim_stop_reason): Delete, moved to common.
 256
 257 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 258
 259         * interp.c (sim_open): Add callback argument.
 260         (sim_set_callbacks): Delete SIM_DESC argument.
 261         (sim_size): Ditto.
 262
 263 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 264
 265         * Makefile.in (SIM_OBJS): Add common modules.
 266
 267         * interp.c (sim_set_callbacks): Also set SD callback.
 268         (set_endianness, xfer_*, swap_*): Delete.
 269         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 270         Change to functions using sim-endian macros.
 271         (control_c, sim_stop): Delete, use common version.
 272         (simulate): Convert into.
 273         (sim_engine_run): This function.
 274         (sim_resume): Delete.
 275
 276         * interp.c (simulation): New variable - the simulator object.
 277         (sim_kind): Delete global - merged into simulation.
 278         (sim_load): Cleanup.  Move PC assignment from here.
 279         (sim_create_inferior): To here.
 280
 281         * sim-main.h: New file.
 282         * interp.c (sim-main.h): Include.
 283
 284 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 285
 286         * configure: Regenerated to track ../common/aclocal.m4 changes.
 287
 288 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 289
 290         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 291
 292 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 293
 294         * gencode.c (build_instruction): DIV instructions: check
 295         for division by zero and integer overflow before using
 296         host's division operation.
 297
 298 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 299
 300         * Makefile.in (SIM_OBJS): Add sim-load.o.
 301         * interp.c: #include bfd.h.
 302         (target_byte_order): Delete.
 303         (sim_kind, myname, big_endian_p): New static locals.
 304         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 305         after argument parsing.  Recognize -E arg, set endianness accordingly.
 306         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 307         load file into simulator.  Set PC from bfd.
 308         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 309         (set_endianness): Use big_endian_p instead of target_byte_order.
 310
 311 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 312
 313         * interp.c (sim_size): Delete prototype - conflicts with
 314         definition in remote-sim.h.  Correct definition.
 315
 316 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 317
 318         * configure: Regenerated to track ../common/aclocal.m4 changes.
 319         * config.in: Ditto.
 320
 321 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 322
 323         * interp.c (sim_open): New arg `kind'.
 324
 325         * configure: Regenerated to track ../common/aclocal.m4 changes.
 326
 327 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 328
 329         * configure: Regenerated to track ../common/aclocal.m4 changes.
 330
 331 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 332
 333         * interp.c (sim_open): Set optind to 0 before calling getopt.
 334
 335 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 336
 337         * configure: Regenerated to track ../common/aclocal.m4 changes.
 338
 339 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 340
 341         * interp.c : Replace uses of pr_addr with pr_uword64
 342         where the bit length is always 64 independent of SIM_ADDR.
 343         (pr_uword64) : added.
 344
 345 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 346
 347         * configure: Re-generate.
 348
 349 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 350
 351         * configure: Regenerate to track ../common/aclocal.m4 changes.
 352
 353 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 354
 355         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 356         in argv form.
 357         (other sim_*): New SIM_DESC argument.
 358
 359 start-sanitize-r5900
 360 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 361
 362         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 363         Change values to avoid overloading DOUBLEWORD which is tested
 364         for all insns.
 365         * gencode.c: reinstate "offending code".
 366
 367 end-sanitize-r5900
 368 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 369
 370         * interp.c: Fix printing of addresses for non-64-bit targets.
 371         (pr_addr): Add function to print address based on size.
 372 start-sanitize-r5900
 373         * gencode.c: #ifdef out offending code until a permanent fix
 374         can be added.  Code is causing build errors for non-5900 mips targets.
 375 end-sanitize-r5900
 376
 377 start-sanitize-r5900
 378 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 379
 380         * gencode.c (process_instructions): Correct test for ISA dependent
 381         architecture bits in isa field of MIPS_DECODE.
 382
 383 end-sanitize-r5900
 384 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 385
 386         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 387
 388 start-sanitize-r5900
 389 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 390
 391         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 392         PMADDUW.
 393
 394 end-sanitize-r5900
 395 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 396
 397         * gencode.c (build_mips16_operands): Correct computation of base
 398         address for extended PC relative instruction.
 399
 400 start-sanitize-r5900
 401 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 402
 403         * Makefile.in, configure, configure.in, gencode.c,
 404         interp.c, support.h: add r5900.
 405
 406 end-sanitize-r5900
 407 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 408
 409         * interp.c (mips16_entry): Add support for floating point cases.
 410         (SignalException): Pass floating point cases to mips16_entry.
 411         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 412         registers.
 413         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 414         or fmt_word.
 415         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 416         and then set the state to fmt_uninterpreted.
 417         (COP_SW): Temporarily set the state to fmt_word while calling
 418         ValueFPR.
 419
 420 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 421
 422         * gencode.c (build_instruction): The high order may be set in the
 423         comparison flags at any ISA level, not just ISA 4.
 424
 425 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 426
 427         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 428         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 429         * configure.in: sinclude ../common/aclocal.m4.
 430         * configure: Regenerated.
 431
 432 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 433
 434         * configure: Rebuild after change to aclocal.m4.
 435
 436 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 437
 438         * configure configure.in Makefile.in:  Update to new configure
 439         scheme which is more compatible with WinGDB builds.
 440         * configure.in:  Improve comment on how to run autoconf.
 441         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 442         * Makefile.in:  Use autoconf substitution to install common
 443         makefile fragment.
 444
 445 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 446
 447         * gencode.c (build_instruction): Use BigEndianCPU instead of
 448         ByteSwapMem.
 449
 450 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 451
 452         * interp.c (sim_monitor): Make output to stdout visible in
 453         wingdb's I/O log window.
 454
 455 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 456
 457         * support.h: Undo previous change to SIGTRAP
 458         and SIGQUIT values.
 459
 460 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 461
 462         * interp.c (store_word, load_word): New static functions.
 463         (mips16_entry): New static function.
 464         (SignalException): Look for mips16 entry and exit instructions.
 465         (simulate): Use the correct index when setting fpr_state after
 466         doing a pending move.
 467
 468 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 469
 470         * interp.c: Fix byte-swapping code throughout to work on
 471         both little- and big-endian hosts.
 472
 473 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 474
 475         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 476         with gdb/config/i386/xm-windows.h.
 477
 478 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 479
 480         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 481         that messes up arithmetic shifts.
 482
 483 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 484
 485         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 486         SIGTRAP and SIGQUIT for _WIN32.
 487
 488 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 489
 490         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 491         force a 64 bit multiplication.
 492         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 493         destination register is 0, since that is the default mips16 nop
 494         instruction.
 495
 496 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 497
 498         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 499         (build_endian_shift): Don't check proc64.
 500         (build_instruction): Always set memval to uword64.  Cast op2 to
 501         uword64 when shifting it left in memory instructions.  Always use
 502         the same code for stores--don't special case proc64.
 503
 504         * gencode.c (build_mips16_operands): Fix base PC value for PC
 505         relative operands.
 506         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 507         jal instruction.
 508         * interp.c (simJALDELAYSLOT): Define.
 509         (JALDELAYSLOT): Define.
 510         (INDELAYSLOT, INJALDELAYSLOT): Define.
 511         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 512
 513 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 514
 515         * interp.c (sim_open): add flush_cache as a PMON routine
 516         (sim_monitor): handle flush_cache by ignoring it
 517
 518 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 519
 520         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 521         BigEndianMem.
 522         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 523         (BigEndianMem): Rename to ByteSwapMem and change sense.
 524         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 525         BigEndianMem references to !ByteSwapMem.
 526         (set_endianness): New function, with prototype.
 527         (sim_open): Call set_endianness.
 528         (sim_info): Use simBE instead of BigEndianMem.
 529         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 530         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 531         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 532         ifdefs, keeping the prototype declaration.
 533         (swap_word): Rewrite correctly.
 534         (ColdReset): Delete references to CONFIG.  Delete endianness related
 535         code; moved to set_endianness.
 536
 537 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 538
 539         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 540         * interp.c (CHECKHILO): Define away.
 541         (simSIGINT): New macro.
 542         (membank_size): Increase from 1MB to 2MB.
 543         (control_c): New function.
 544         (sim_resume): Rename parameter signal to signal_number.  Add local
 545         variable prev.  Call signal before and after simulate.
 546         (sim_stop_reason): Add simSIGINT support.
 547         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 548         functions always.
 549         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 550         if logfh is NULL.
 551         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 552         a call to sim_warning.
 553
 554 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 555
 556         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 557         16 bit instructions.
 558
 559 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 560
 561         Add support for mips16 (16 bit MIPS implementation):
 562         * gencode.c (inst_type): Add mips16 instruction encoding types.
 563         (GETDATASIZEINSN): Define.
 564         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 565         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 566         mtlo.
 567         (MIPS16_DECODE): New table, for mips16 instructions.
 568         (bitmap_val): New static function.
 569         (struct mips16_op): Define.
 570         (mips16_op_table): New table, for mips16 operands.
 571         (build_mips16_operands): New static function.
 572         (process_instructions): If PC is odd, decode a mips16
 573         instruction.  Break out instruction handling into new
 574         build_instruction function.
 575         (build_instruction): New static function, broken out of
 576         process_instructions.  Check modifiers rather than flags for SHIFT
 577         bit count and m[ft]{hi,lo} direction.
 578         (usage): Pass program name to fprintf.
 579         (main): Remove unused variable this_option_optind.  Change
 580         ``*loptarg++'' to ``loptarg++''.
 581         (my_strtoul): Parenthesize && within ||.
 582         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 583         (simulate): If PC is odd, fetch a 16 bit instruction, and
 584         increment PC by 2 rather than 4.
 585         * configure.in: Add case for mips16*-*-*.
 586         * configure: Rebuild.
 587
 588 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 589
 590         * interp.c: Allow -t to enable tracing in standalone simulator.
 591         Fix garbage output in trace file and error messages.
 592
 593 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 594
 595         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 596         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 597         * configure.in: Simplify using macros in ../common/aclocal.m4.
 598         * configure: Regenerated.
 599         * tconfig.in: New file.
 600
 601 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 602
 603         * interp.c: Fix bugs in 64-bit port.
 604         Use ansi function declarations for msvc compiler.
 605         Initialize and test file pointer in trace code.
 606         Prevent duplicate definition of LAST_EMED_REGNUM.
 607
 608 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 609
 610         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 611
 612 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 613
 614         * interp.c (SignalException): Check for explicit terminating
 615         breakpoint value.
 616         * gencode.c: Pass instruction value through SignalException()
 617         calls for Trap, Breakpoint and Syscall.
 618
 619 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 620
 621         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 622         only used on those hosts that provide it.
 623         * configure.in: Add sqrt() to list of functions to be checked for.
 624         * config.in: Re-generated.
 625         * configure: Re-generated.
 626
 627 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 628
 629         * gencode.c (process_instructions): Call build_endian_shift when
 630         expanding STORE RIGHT, to fix swr.
 631         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 632         clear the high bits.
 633         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 634         Fix float to int conversions to produce signed values.
 635
 636 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 637
 638         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 639         (process_instructions): Correct handling of nor instruction.
 640         Correct shift count for 32 bit shift instructions. Correct sign
 641         extension for arithmetic shifts to not shift the number of bits in
 642         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 643         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 644         Fix madd.
 645         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 646         It's OK to have a mult follow a mult.  What's not OK is to have a
 647         mult follow an mfhi.
 648         (Convert): Comment out incorrect rounding code.
 649
 650 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 651
 652         * interp.c (sim_monitor): Improved monitor printf
 653         simulation. Tidied up simulator warnings, and added "--log" option
 654         for directing warning message output.
 655         * gencode.c: Use sim_warning() rather than WARNING macro.
 656
 657 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 658
 659         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 660         getopt1.o, rather than on gencode.c.  Link objects together.
 661         Don't link against -liberty.
 662         (gencode.o, getopt.o, getopt1.o): New targets.
 663         * gencode.c: Include <ctype.h> and "ansidecl.h".
 664         (AND): Undefine after including "ansidecl.h".
 665         (ULONG_MAX): Define if not defined.
 666         (OP_*): Don't define macros; now defined in opcode/mips.h.
 667         (main): Call my_strtoul rather than strtoul.
 668         (my_strtoul): New static function.
 669
 670 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 671
 672         * gencode.c (process_instructions):  Generate word64 and uword64
 673         instead of `long long' and `unsigned long long' data types.
 674         * interp.c:  #include sysdep.h to get signals, and define default
 675         for SIGBUS.
 676         * (Convert):  Work around for Visual-C++ compiler bug with type
 677         conversion.
 678         * support.h:  Make things compile under Visual-C++ by using
 679         __int64 instead of `long long'.  Change many refs to long long
 680         into word64/uword64 typedefs.
 681
 682 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 683
 684         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 685         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 686         (docdir): Removed.
 687         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 688         (AC_PROG_INSTALL): Added.
 689         (AC_PROG_CC): Moved to before configure.host call.
 690         * configure: Rebuilt.
 691
 692 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 693
 694         * configure.in: Define @SIMCONF@ depending on mips target.
 695         * configure: Rebuild.
 696         * Makefile.in (run): Add @SIMCONF@ to control simulator
 697         construction.
 698         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 699         * interp.c: Remove some debugging, provide more detailed error
 700         messages, update memory accesses to use LOADDRMASK.
 701
 702 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 703
 704         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 705         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 706         stamp-h.
 707         * configure: Rebuild.
 708         * config.in: New file, generated by autoheader.
 709         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 710         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 711         HAVE_ANINT and HAVE_AINT, as appropriate.
 712         * Makefile.in (run): Use @LIBS@ rather than -lm.
 713         (interp.o): Depend upon config.h.
 714         (Makefile): Just rebuild Makefile.
 715         (clean): Remove stamp-h.
 716         (mostlyclean): Make the same as clean, not as distclean.
 717         (config.h, stamp-h): New targets.
 718
 719 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 720
 721         * interp.c (ColdReset): Fix boolean test. Make all simulator
 722         globals static.
 723
 724 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 725
 726         * interp.c (xfer_direct_word, xfer_direct_long,
 727         swap_direct_word, swap_direct_long, xfer_big_word,
 728         xfer_big_long, xfer_little_word, xfer_little_long,
 729         swap_word,swap_long): Added.
 730         * interp.c (ColdReset): Provide function indirection to
 731         host<->simulated_target transfer routines.
 732         * interp.c (sim_store_register, sim_fetch_register): Updated to
 733         make use of indirected transfer routines.
 734
 735 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 736
 737         * gencode.c (process_instructions): Ensure FP ABS instruction
 738         recognised.
 739         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 740         system call support.
 741
 742 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 743
 744         * interp.c (sim_do_command): Complain if callback structure not
 745         initialised.
 746
 747 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 748
 749         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 750         support for Sun hosts.
 751         * Makefile.in (gencode): Ensure the host compiler and libraries
 752         used for cross-hosted build.
 753
 754 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 755
 756         * interp.c, gencode.c: Some more (TODO) tidying.
 757
 758 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 759
 760         * gencode.c, interp.c: Replaced explicit long long references with
 761         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 762         * support.h (SET64LO, SET64HI): Macros added.
 763
 764 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 765
 766         * configure: Regenerate with autoconf 2.7.
 767
 768 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 769
 770         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 771         * support.h: Remove superfluous "1" from #if.
 772         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 773
 774 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 775
 776         * interp.c (StoreFPR): Control UndefinedResult() call on
 777         WARN_RESULT manifest.
 778
 779 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 780
 781         * gencode.c: Tidied instruction decoding, and added FP instruction
 782         support.
 783
 784         * interp.c: Added dineroIII, and BSD profiling support. Also
 785         run-time FP handling.
 786
 787 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 788
 789         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 790         gencode.c, interp.c, support.h: created.