sim/mips/ChangeLog

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