sim/mips/ChangeLog

   1 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * interp.c (mips_options): Fix samples option short form, should
   4         be `x'.
   5
   6 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   7
   8         * interp.c (sim_info): Enable info code.  Was just returning.
   9
  10 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  11
  12         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
  13         MFC0.
  14
  15 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  16
  17         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
  18         constants.
  19         (build_instruction): Ditto for LL.
  20
  21 start-sanitize-tx19
  22 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
  23
  24         * mips/configure.in, mips/gencode: Add tx19/r1900.
  25
  26 end-sanitize-tx19
  27 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
  28
  29         * configure: Regenerated to track ../common/aclocal.m4 changes.
  30
  31 start-sanitize-r5900
  32 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  33
  34         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
  35         for overflow due to ABS of MININT, set result to MAXINT.
  36         (build_instruction): For "psrlvw", signextend bit 31.
  37
  38 end-sanitize-r5900
  39 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  40
  41         * configure: Regenerated to track ../common/aclocal.m4 changes.
  42         * config.in: Ditto.
  43
  44 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  45
  46         * interp.c (sim_open): Add call to sim_analyze_program, update
  47         call to sim_config.
  48
  49 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  50
  51         * interp.c (sim_kill): Delete.
  52         (sim_create_inferior): Add ABFD argument. Set PC from same.
  53         (sim_load): Move code initializing trap handlers from here.
  54         (sim_open): To here.
  55         (sim_load): Delete, use sim-hload.c.
  56
  57         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
  58
  59 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  60
  61         * configure: Regenerated to track ../common/aclocal.m4 changes.
  62         * config.in: Ditto.
  63
  64 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  65
  66         * interp.c (sim_open): Add ABFD argument.
  67         (sim_load): Move call to sim_config from here.
  68         (sim_open): To here.  Check return status.
  69
  70 start-sanitize-r5900
  71         * gencode.c (build_instruction): Do not define x8000000000000000,
  72         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
  73
  74 end-sanitize-r5900
  75 start-sanitize-r5900
  76 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  77
  78         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
  79         "pdivuw" check for overflow due to signed divide by -1.
  80
  81 end-sanitize-r5900
  82 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
  83
  84         * gencode.c (build_instruction): Two arg MADD should
  85         not assign result to $0.
  86
  87 start-sanitize-r5900
  88 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
  89
  90         * gencode.c (build_instruction): For "ppac5" use unsigned
  91         arrithmetic so that the sign bit doesn't smear when right shifted.
  92         (build_instruction): For "pdiv" perform sign extension when
  93         storing results in HI and LO.
  94         (build_instructions): For "pdiv" and "pdivbw" check for
  95         divide-by-zero.
  96         (build_instruction): For "pmfhl.slw" update hi part of dest
  97         register as well as low part.
  98         (build_instruction): For "pmfhl" portably handle long long values.
  99         (build_instruction): For "pmfhl.sh" correctly negative values.
 100         Store half words 2 and three in the correct place.
 101         (build_instruction): For "psllvw", sign extend value after shift.
 102
 103 end-sanitize-r5900
 104 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 105
 106         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 107         * sim/mips/configure.in: Regenerate.
 108
 109 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 110
 111         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 112         signed8, unsigned8 et.al. types.
 113
 114 start-sanitize-r5900
 115         * gencode.c (build_instruction): For PMULTU* do not sign extend
 116         registers.  Make generated code easier to debug.
 117
 118 end-sanitize-r5900
 119         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 120         hosts when selecting subreg.
 121
 122 start-sanitize-r5900
 123 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 124
 125         * gencode.c (type_for_data_len): For 32bit operations concerned
 126         with overflow, perform op using 64bits.
 127         (build_instruction): For PADD, always compute operation using type
 128         returned by type_for_data_len.
 129         (build_instruction): For PSUBU, when overflow, saturate to zero as
 130         actually underflow.
 131
 132 end-sanitize-r5900
 133 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 134
 135 start-sanitize-r5900
 136         * gencode.c (build_instruction): Handle "pext5" according to
 137         version 1.95 of the r5900 ISA.
 138
 139         * gencode.c (build_instruction): Handle "ppac5" according to
 140         version 1.95 of the r5900 ISA.
 141
 142 end-sanitize-r5900
 143         * interp.c (sim_engine_run): Reset the ZERO register to zero
 144         regardless of FEATURE_WARN_ZERO.
 145         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 146
 147 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 148
 149         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 150         (SignalException): For BreakPoints ignore any mode bits and just
 151         save the PC.
 152         (SignalException): Always set the CAUSE register.
 153
 154 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 155
 156         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 157         exception has been taken.
 158
 159         * interp.c: Implement the ERET and mt/f sr instructions.
 160
 161 start-sanitize-r5900
 162 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 163
 164         * gencode.c (build_instruction): For paddu, extract unsigned
 165         sub-fields.
 166
 167         * gencode.c (build_instruction): Saturate padds instead of padd
 168         instructions.
 169
 170 end-sanitize-r5900
 171 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 172
 173         * interp.c (SignalException): Don't bother restarting an
 174         interrupt.
 175
 176 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 177
 178         * interp.c (SignalException): Really take an interrupt.
 179         (interrupt_event): Only deliver interrupts when enabled.
 180
 181 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 182
 183         * interp.c (sim_info): Only print info when verbose.
 184         (sim_info) Use sim_io_printf for output.
 185
 186 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 187
 188         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 189         mips architectures.
 190
 191 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 192
 193         * interp.c (sim_do_command): Check for common commands if a
 194         simulator specific command fails.
 195
 196 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 197
 198         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 199         and simBE when DEBUG is defined.
 200
 201 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 202
 203         * interp.c (interrupt_event): New function.  Pass exception event
 204         onto exception handler.
 205
 206         * configure.in: Check for stdlib.h.
 207         * configure: Regenerate.
 208
 209         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 210         variable declaration.
 211         (build_instruction): Initialize memval1.
 212         (build_instruction): Add UNUSED attribute to byte, bigend,
 213         reverse.
 214         (build_operands): Ditto.
 215
 216         * interp.c: Fix GCC warnings.
 217         (sim_get_quit_code): Delete.
 218
 219         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 220         * Makefile.in: Ditto.
 221         * configure: Re-generate.
 222
 223         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 224
 225 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 226
 227         * interp.c (mips_option_handler): New function parse argumes using
 228         sim-options.
 229         (myname): Replace with STATE_MY_NAME.
 230         (sim_open): Delete check for host endianness - performed by
 231         sim_config.
 232         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 233         (sim_open): Move much of the initialization from here.
 234         (sim_load): To here.  After the image has been loaded and
 235         endianness set.
 236         (sim_open): Move ColdReset from here.
 237         (sim_create_inferior): To here.
 238         (sim_open): Make FP check less dependant on host endianness.
 239
 240         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 241         run.
 242         * interp.c (sim_set_callbacks): Delete.
 243
 244         * interp.c (membank, membank_base, membank_size): Replace with
 245         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 246         (sim_open): Remove call to callback->init. gdb/run do this.
 247
 248         * interp.c: Update
 249
 250         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 251
 252         * interp.c (big_endian_p): Delete, replaced by
 253         current_target_byte_order.
 254
 255 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 256
 257         * interp.c (host_read_long, host_read_word, host_swap_word,
 258         host_swap_long): Delete. Using common sim-endian.
 259         (sim_fetch_register, sim_store_register): Use H2T.
 260         (pipeline_ticks): Delete.  Handled by sim-events.
 261         (sim_info): Update.
 262         (sim_engine_run): Update.
 263
 264 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 265
 266         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 267         reason from here.
 268         (SignalException): To here. Signal using sim_engine_halt.
 269         (sim_stop_reason): Delete, moved to common.
 270
 271 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 272
 273         * interp.c (sim_open): Add callback argument.
 274         (sim_set_callbacks): Delete SIM_DESC argument.
 275         (sim_size): Ditto.
 276
 277 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 278
 279         * Makefile.in (SIM_OBJS): Add common modules.
 280
 281         * interp.c (sim_set_callbacks): Also set SD callback.
 282         (set_endianness, xfer_*, swap_*): Delete.
 283         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 284         Change to functions using sim-endian macros.
 285         (control_c, sim_stop): Delete, use common version.
 286         (simulate): Convert into.
 287         (sim_engine_run): This function.
 288         (sim_resume): Delete.
 289
 290         * interp.c (simulation): New variable - the simulator object.
 291         (sim_kind): Delete global - merged into simulation.
 292         (sim_load): Cleanup.  Move PC assignment from here.
 293         (sim_create_inferior): To here.
 294
 295         * sim-main.h: New file.
 296         * interp.c (sim-main.h): Include.
 297
 298 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 299
 300         * configure: Regenerated to track ../common/aclocal.m4 changes.
 301
 302 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 303
 304         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 305
 306 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 307
 308         * gencode.c (build_instruction): DIV instructions: check
 309         for division by zero and integer overflow before using
 310         host's division operation.
 311
 312 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 313
 314         * Makefile.in (SIM_OBJS): Add sim-load.o.
 315         * interp.c: #include bfd.h.
 316         (target_byte_order): Delete.
 317         (sim_kind, myname, big_endian_p): New static locals.
 318         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 319         after argument parsing.  Recognize -E arg, set endianness accordingly.
 320         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 321         load file into simulator.  Set PC from bfd.
 322         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 323         (set_endianness): Use big_endian_p instead of target_byte_order.
 324
 325 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 326
 327         * interp.c (sim_size): Delete prototype - conflicts with
 328         definition in remote-sim.h.  Correct definition.
 329
 330 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 331
 332         * configure: Regenerated to track ../common/aclocal.m4 changes.
 333         * config.in: Ditto.
 334
 335 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 336
 337         * interp.c (sim_open): New arg `kind'.
 338
 339         * configure: Regenerated to track ../common/aclocal.m4 changes.
 340
 341 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 342
 343         * configure: Regenerated to track ../common/aclocal.m4 changes.
 344
 345 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 346
 347         * interp.c (sim_open): Set optind to 0 before calling getopt.
 348
 349 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 350
 351         * configure: Regenerated to track ../common/aclocal.m4 changes.
 352
 353 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 354
 355         * interp.c : Replace uses of pr_addr with pr_uword64
 356         where the bit length is always 64 independent of SIM_ADDR.
 357         (pr_uword64) : added.
 358
 359 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 360
 361         * configure: Re-generate.
 362
 363 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 364
 365         * configure: Regenerate to track ../common/aclocal.m4 changes.
 366
 367 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 368
 369         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 370         in argv form.
 371         (other sim_*): New SIM_DESC argument.
 372
 373 start-sanitize-r5900
 374 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 375
 376         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 377         Change values to avoid overloading DOUBLEWORD which is tested
 378         for all insns.
 379         * gencode.c: reinstate "offending code".
 380
 381 end-sanitize-r5900
 382 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 383
 384         * interp.c: Fix printing of addresses for non-64-bit targets.
 385         (pr_addr): Add function to print address based on size.
 386 start-sanitize-r5900
 387         * gencode.c: #ifdef out offending code until a permanent fix
 388         can be added.  Code is causing build errors for non-5900 mips targets.
 389 end-sanitize-r5900
 390
 391 start-sanitize-r5900
 392 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 393
 394         * gencode.c (process_instructions): Correct test for ISA dependent
 395         architecture bits in isa field of MIPS_DECODE.
 396
 397 end-sanitize-r5900
 398 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 399
 400         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 401
 402 start-sanitize-r5900
 403 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 404
 405         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 406         PMADDUW.
 407
 408 end-sanitize-r5900
 409 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 410
 411         * gencode.c (build_mips16_operands): Correct computation of base
 412         address for extended PC relative instruction.
 413
 414 start-sanitize-r5900
 415 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 416
 417         * Makefile.in, configure, configure.in, gencode.c,
 418         interp.c, support.h: add r5900.
 419
 420 end-sanitize-r5900
 421 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 422
 423         * interp.c (mips16_entry): Add support for floating point cases.
 424         (SignalException): Pass floating point cases to mips16_entry.
 425         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 426         registers.
 427         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 428         or fmt_word.
 429         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 430         and then set the state to fmt_uninterpreted.
 431         (COP_SW): Temporarily set the state to fmt_word while calling
 432         ValueFPR.
 433
 434 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 435
 436         * gencode.c (build_instruction): The high order may be set in the
 437         comparison flags at any ISA level, not just ISA 4.
 438
 439 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 440
 441         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 442         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 443         * configure.in: sinclude ../common/aclocal.m4.
 444         * configure: Regenerated.
 445
 446 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 447
 448         * configure: Rebuild after change to aclocal.m4.
 449
 450 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 451
 452         * configure configure.in Makefile.in:  Update to new configure
 453         scheme which is more compatible with WinGDB builds.
 454         * configure.in:  Improve comment on how to run autoconf.
 455         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 456         * Makefile.in:  Use autoconf substitution to install common
 457         makefile fragment.
 458
 459 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 460
 461         * gencode.c (build_instruction): Use BigEndianCPU instead of
 462         ByteSwapMem.
 463
 464 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 465
 466         * interp.c (sim_monitor): Make output to stdout visible in
 467         wingdb's I/O log window.
 468
 469 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 470
 471         * support.h: Undo previous change to SIGTRAP
 472         and SIGQUIT values.
 473
 474 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 475
 476         * interp.c (store_word, load_word): New static functions.
 477         (mips16_entry): New static function.
 478         (SignalException): Look for mips16 entry and exit instructions.
 479         (simulate): Use the correct index when setting fpr_state after
 480         doing a pending move.
 481
 482 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 483
 484         * interp.c: Fix byte-swapping code throughout to work on
 485         both little- and big-endian hosts.
 486
 487 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 488
 489         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 490         with gdb/config/i386/xm-windows.h.
 491
 492 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 493
 494         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 495         that messes up arithmetic shifts.
 496
 497 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 498
 499         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 500         SIGTRAP and SIGQUIT for _WIN32.
 501
 502 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 503
 504         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 505         force a 64 bit multiplication.
 506         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 507         destination register is 0, since that is the default mips16 nop
 508         instruction.
 509
 510 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 511
 512         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 513         (build_endian_shift): Don't check proc64.
 514         (build_instruction): Always set memval to uword64.  Cast op2 to
 515         uword64 when shifting it left in memory instructions.  Always use
 516         the same code for stores--don't special case proc64.
 517
 518         * gencode.c (build_mips16_operands): Fix base PC value for PC
 519         relative operands.
 520         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 521         jal instruction.
 522         * interp.c (simJALDELAYSLOT): Define.
 523         (JALDELAYSLOT): Define.
 524         (INDELAYSLOT, INJALDELAYSLOT): Define.
 525         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 526
 527 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 528
 529         * interp.c (sim_open): add flush_cache as a PMON routine
 530         (sim_monitor): handle flush_cache by ignoring it
 531
 532 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 533
 534         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 535         BigEndianMem.
 536         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 537         (BigEndianMem): Rename to ByteSwapMem and change sense.
 538         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 539         BigEndianMem references to !ByteSwapMem.
 540         (set_endianness): New function, with prototype.
 541         (sim_open): Call set_endianness.
 542         (sim_info): Use simBE instead of BigEndianMem.
 543         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 544         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 545         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 546         ifdefs, keeping the prototype declaration.
 547         (swap_word): Rewrite correctly.
 548         (ColdReset): Delete references to CONFIG.  Delete endianness related
 549         code; moved to set_endianness.
 550
 551 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 552
 553         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 554         * interp.c (CHECKHILO): Define away.
 555         (simSIGINT): New macro.
 556         (membank_size): Increase from 1MB to 2MB.
 557         (control_c): New function.
 558         (sim_resume): Rename parameter signal to signal_number.  Add local
 559         variable prev.  Call signal before and after simulate.
 560         (sim_stop_reason): Add simSIGINT support.
 561         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 562         functions always.
 563         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 564         if logfh is NULL.
 565         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 566         a call to sim_warning.
 567
 568 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 569
 570         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 571         16 bit instructions.
 572
 573 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 574
 575         Add support for mips16 (16 bit MIPS implementation):
 576         * gencode.c (inst_type): Add mips16 instruction encoding types.
 577         (GETDATASIZEINSN): Define.
 578         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 579         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 580         mtlo.
 581         (MIPS16_DECODE): New table, for mips16 instructions.
 582         (bitmap_val): New static function.
 583         (struct mips16_op): Define.
 584         (mips16_op_table): New table, for mips16 operands.
 585         (build_mips16_operands): New static function.
 586         (process_instructions): If PC is odd, decode a mips16
 587         instruction.  Break out instruction handling into new
 588         build_instruction function.
 589         (build_instruction): New static function, broken out of
 590         process_instructions.  Check modifiers rather than flags for SHIFT
 591         bit count and m[ft]{hi,lo} direction.
 592         (usage): Pass program name to fprintf.
 593         (main): Remove unused variable this_option_optind.  Change
 594         ``*loptarg++'' to ``loptarg++''.
 595         (my_strtoul): Parenthesize && within ||.
 596         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 597         (simulate): If PC is odd, fetch a 16 bit instruction, and
 598         increment PC by 2 rather than 4.
 599         * configure.in: Add case for mips16*-*-*.
 600         * configure: Rebuild.
 601
 602 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 603
 604         * interp.c: Allow -t to enable tracing in standalone simulator.
 605         Fix garbage output in trace file and error messages.
 606
 607 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 608
 609         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 610         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 611         * configure.in: Simplify using macros in ../common/aclocal.m4.
 612         * configure: Regenerated.
 613         * tconfig.in: New file.
 614
 615 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 616
 617         * interp.c: Fix bugs in 64-bit port.
 618         Use ansi function declarations for msvc compiler.
 619         Initialize and test file pointer in trace code.
 620         Prevent duplicate definition of LAST_EMED_REGNUM.
 621
 622 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 623
 624         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 625
 626 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 627
 628         * interp.c (SignalException): Check for explicit terminating
 629         breakpoint value.
 630         * gencode.c: Pass instruction value through SignalException()
 631         calls for Trap, Breakpoint and Syscall.
 632
 633 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 634
 635         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 636         only used on those hosts that provide it.
 637         * configure.in: Add sqrt() to list of functions to be checked for.
 638         * config.in: Re-generated.
 639         * configure: Re-generated.
 640
 641 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 642
 643         * gencode.c (process_instructions): Call build_endian_shift when
 644         expanding STORE RIGHT, to fix swr.
 645         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 646         clear the high bits.
 647         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 648         Fix float to int conversions to produce signed values.
 649
 650 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 651
 652         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 653         (process_instructions): Correct handling of nor instruction.
 654         Correct shift count for 32 bit shift instructions. Correct sign
 655         extension for arithmetic shifts to not shift the number of bits in
 656         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 657         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 658         Fix madd.
 659         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 660         It's OK to have a mult follow a mult.  What's not OK is to have a
 661         mult follow an mfhi.
 662         (Convert): Comment out incorrect rounding code.
 663
 664 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 665
 666         * interp.c (sim_monitor): Improved monitor printf
 667         simulation. Tidied up simulator warnings, and added "--log" option
 668         for directing warning message output.
 669         * gencode.c: Use sim_warning() rather than WARNING macro.
 670
 671 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 672
 673         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 674         getopt1.o, rather than on gencode.c.  Link objects together.
 675         Don't link against -liberty.
 676         (gencode.o, getopt.o, getopt1.o): New targets.
 677         * gencode.c: Include <ctype.h> and "ansidecl.h".
 678         (AND): Undefine after including "ansidecl.h".
 679         (ULONG_MAX): Define if not defined.
 680         (OP_*): Don't define macros; now defined in opcode/mips.h.
 681         (main): Call my_strtoul rather than strtoul.
 682         (my_strtoul): New static function.
 683
 684 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 685
 686         * gencode.c (process_instructions):  Generate word64 and uword64
 687         instead of `long long' and `unsigned long long' data types.
 688         * interp.c:  #include sysdep.h to get signals, and define default
 689         for SIGBUS.
 690         * (Convert):  Work around for Visual-C++ compiler bug with type
 691         conversion.
 692         * support.h:  Make things compile under Visual-C++ by using
 693         __int64 instead of `long long'.  Change many refs to long long
 694         into word64/uword64 typedefs.
 695
 696 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 697
 698         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 699         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 700         (docdir): Removed.
 701         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 702         (AC_PROG_INSTALL): Added.
 703         (AC_PROG_CC): Moved to before configure.host call.
 704         * configure: Rebuilt.
 705
 706 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 707
 708         * configure.in: Define @SIMCONF@ depending on mips target.
 709         * configure: Rebuild.
 710         * Makefile.in (run): Add @SIMCONF@ to control simulator
 711         construction.
 712         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 713         * interp.c: Remove some debugging, provide more detailed error
 714         messages, update memory accesses to use LOADDRMASK.
 715
 716 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 717
 718         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 719         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 720         stamp-h.
 721         * configure: Rebuild.
 722         * config.in: New file, generated by autoheader.
 723         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 724         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 725         HAVE_ANINT and HAVE_AINT, as appropriate.
 726         * Makefile.in (run): Use @LIBS@ rather than -lm.
 727         (interp.o): Depend upon config.h.
 728         (Makefile): Just rebuild Makefile.
 729         (clean): Remove stamp-h.
 730         (mostlyclean): Make the same as clean, not as distclean.
 731         (config.h, stamp-h): New targets.
 732
 733 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 734
 735         * interp.c (ColdReset): Fix boolean test. Make all simulator
 736         globals static.
 737
 738 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 739
 740         * interp.c (xfer_direct_word, xfer_direct_long,
 741         swap_direct_word, swap_direct_long, xfer_big_word,
 742         xfer_big_long, xfer_little_word, xfer_little_long,
 743         swap_word,swap_long): Added.
 744         * interp.c (ColdReset): Provide function indirection to
 745         host<->simulated_target transfer routines.
 746         * interp.c (sim_store_register, sim_fetch_register): Updated to
 747         make use of indirected transfer routines.
 748
 749 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 750
 751         * gencode.c (process_instructions): Ensure FP ABS instruction
 752         recognised.
 753         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 754         system call support.
 755
 756 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 757
 758         * interp.c (sim_do_command): Complain if callback structure not
 759         initialised.
 760
 761 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 762
 763         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 764         support for Sun hosts.
 765         * Makefile.in (gencode): Ensure the host compiler and libraries
 766         used for cross-hosted build.
 767
 768 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 769
 770         * interp.c, gencode.c: Some more (TODO) tidying.
 771
 772 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 773
 774         * gencode.c, interp.c: Replaced explicit long long references with
 775         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 776         * support.h (SET64LO, SET64HI): Macros added.
 777
 778 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 779
 780         * configure: Regenerate with autoconf 2.7.
 781
 782 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 783
 784         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 785         * support.h: Remove superfluous "1" from #if.
 786         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 787
 788 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 789
 790         * interp.c (StoreFPR): Control UndefinedResult() call on
 791         WARN_RESULT manifest.
 792
 793 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 794
 795         * gencode.c: Tidied instruction decoding, and added FP instruction
 796         support.
 797
 798         * interp.c: Added dineroIII, and BSD profiling support. Also
 799         run-time FP handling.
 800
 801 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 802
 803         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 804         gencode.c, interp.c, support.h: created.