sim/mips/ChangeLog

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