sim/mips/ChangeLog

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