sim/mips/ChangeLog

   1 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * configure: Regenerated to track ../common/aclocal.m4 changes.
   4
   5 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
   6
   7         * gencode.c (SDBBP,DERET): Added (3900) insns.
   8         (RFE): Turn on for 3900.
   9         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
  10         (dsstate): Made global.
  11         (SUBTARGET_R3900): Added.
  12         (CANCELDELAYSLOT): New.
  13         (SignalException): Ignore SystemCall rather than ignore and
  14         terminate.  Add DebugBreakPoint handling.
  15         (decode_coproc): New insns RFE, DERET; and new registers Debug
  16         and DEPC protected by SUBTARGET_R3900.
  17         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
  18         bits explicitly.
  19         * Makefile.in,configure.in: Add mips subtarget option.
  20         * configure: Update.
  21
  22 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
  23
  24         * gencode.c: Add r3900 (tx39).
  25
  26 start-sanitize-tx19
  27         * gencode.c: Fix some configuration problems by improving
  28         the relationship between tx19 and tx39.
  29 end-sanitize-tx19
  30
  31 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
  32
  33         * gencode.c (build_instruction): Don't need to subtract 4 for
  34         JALR, just 2.
  35
  36 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
  37
  38         * interp.c: Correct some HASFPU problems.
  39
  40 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  41
  42         * configure: Regenerated to track ../common/aclocal.m4 changes.
  43
  44 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  45
  46         * interp.c (mips_options): Fix samples option short form, should
  47         be `x'.
  48
  49 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  50
  51         * interp.c (sim_info): Enable info code.  Was just returning.
  52
  53 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  54
  55         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
  56         MFC0.
  57
  58 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  59
  60         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
  61         constants.
  62         (build_instruction): Ditto for LL.
  63
  64 start-sanitize-tx19
  65 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
  66
  67         * mips/configure.in, mips/gencode: Add tx19/r1900.
  68
  69 end-sanitize-tx19
  70 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
  71
  72         * configure: Regenerated to track ../common/aclocal.m4 changes.
  73
  74 start-sanitize-r5900
  75 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  76
  77         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
  78         for overflow due to ABS of MININT, set result to MAXINT.
  79         (build_instruction): For "psrlvw", signextend bit 31.
  80
  81 end-sanitize-r5900
  82 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  83
  84         * configure: Regenerated to track ../common/aclocal.m4 changes.
  85         * config.in: Ditto.
  86
  87 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  88
  89         * interp.c (sim_open): Add call to sim_analyze_program, update
  90         call to sim_config.
  91
  92 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  93
  94         * interp.c (sim_kill): Delete.
  95         (sim_create_inferior): Add ABFD argument. Set PC from same.
  96         (sim_load): Move code initializing trap handlers from here.
  97         (sim_open): To here.
  98         (sim_load): Delete, use sim-hload.c.
  99
 100         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 101
 102 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 103
 104         * configure: Regenerated to track ../common/aclocal.m4 changes.
 105         * config.in: Ditto.
 106
 107 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 108
 109         * interp.c (sim_open): Add ABFD argument.
 110         (sim_load): Move call to sim_config from here.
 111         (sim_open): To here.  Check return status.
 112
 113 start-sanitize-r5900
 114         * gencode.c (build_instruction): Do not define x8000000000000000,
 115         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 116
 117 end-sanitize-r5900
 118 start-sanitize-r5900
 119 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 120
 121         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 122         "pdivuw" check for overflow due to signed divide by -1.
 123
 124 end-sanitize-r5900
 125 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 126
 127         * gencode.c (build_instruction): Two arg MADD should
 128         not assign result to $0.
 129
 130 start-sanitize-r5900
 131 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 132
 133         * gencode.c (build_instruction): For "ppac5" use unsigned
 134         arrithmetic so that the sign bit doesn't smear when right shifted.
 135         (build_instruction): For "pdiv" perform sign extension when
 136         storing results in HI and LO.
 137         (build_instructions): For "pdiv" and "pdivbw" check for
 138         divide-by-zero.
 139         (build_instruction): For "pmfhl.slw" update hi part of dest
 140         register as well as low part.
 141         (build_instruction): For "pmfhl" portably handle long long values.
 142         (build_instruction): For "pmfhl.sh" correctly negative values.
 143         Store half words 2 and three in the correct place.
 144         (build_instruction): For "psllvw", sign extend value after shift.
 145
 146 end-sanitize-r5900
 147 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 148
 149         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 150         * sim/mips/configure.in: Regenerate.
 151
 152 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 153
 154         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 155         signed8, unsigned8 et.al. types.
 156
 157 start-sanitize-r5900
 158         * gencode.c (build_instruction): For PMULTU* do not sign extend
 159         registers.  Make generated code easier to debug.
 160
 161 end-sanitize-r5900
 162         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 163         hosts when selecting subreg.
 164
 165 start-sanitize-r5900
 166 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 167
 168         * gencode.c (type_for_data_len): For 32bit operations concerned
 169         with overflow, perform op using 64bits.
 170         (build_instruction): For PADD, always compute operation using type
 171         returned by type_for_data_len.
 172         (build_instruction): For PSUBU, when overflow, saturate to zero as
 173         actually underflow.
 174
 175 end-sanitize-r5900
 176 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 177
 178 start-sanitize-r5900
 179         * gencode.c (build_instruction): Handle "pext5" according to
 180         version 1.95 of the r5900 ISA.
 181
 182         * gencode.c (build_instruction): Handle "ppac5" according to
 183         version 1.95 of the r5900 ISA.
 184
 185 end-sanitize-r5900
 186         * interp.c (sim_engine_run): Reset the ZERO register to zero
 187         regardless of FEATURE_WARN_ZERO.
 188         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 189
 190 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 191
 192         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 193         (SignalException): For BreakPoints ignore any mode bits and just
 194         save the PC.
 195         (SignalException): Always set the CAUSE register.
 196
 197 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 198
 199         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 200         exception has been taken.
 201
 202         * interp.c: Implement the ERET and mt/f sr instructions.
 203
 204 start-sanitize-r5900
 205 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 206
 207         * gencode.c (build_instruction): For paddu, extract unsigned
 208         sub-fields.
 209
 210         * gencode.c (build_instruction): Saturate padds instead of padd
 211         instructions.
 212
 213 end-sanitize-r5900
 214 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 215
 216         * interp.c (SignalException): Don't bother restarting an
 217         interrupt.
 218
 219 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 220
 221         * interp.c (SignalException): Really take an interrupt.
 222         (interrupt_event): Only deliver interrupts when enabled.
 223
 224 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 225
 226         * interp.c (sim_info): Only print info when verbose.
 227         (sim_info) Use sim_io_printf for output.
 228
 229 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 230
 231         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 232         mips architectures.
 233
 234 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 235
 236         * interp.c (sim_do_command): Check for common commands if a
 237         simulator specific command fails.
 238
 239 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 240
 241         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 242         and simBE when DEBUG is defined.
 243
 244 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 245
 246         * interp.c (interrupt_event): New function.  Pass exception event
 247         onto exception handler.
 248
 249         * configure.in: Check for stdlib.h.
 250         * configure: Regenerate.
 251
 252         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 253         variable declaration.
 254         (build_instruction): Initialize memval1.
 255         (build_instruction): Add UNUSED attribute to byte, bigend,
 256         reverse.
 257         (build_operands): Ditto.
 258
 259         * interp.c: Fix GCC warnings.
 260         (sim_get_quit_code): Delete.
 261
 262         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 263         * Makefile.in: Ditto.
 264         * configure: Re-generate.
 265
 266         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 267
 268 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 269
 270         * interp.c (mips_option_handler): New function parse argumes using
 271         sim-options.
 272         (myname): Replace with STATE_MY_NAME.
 273         (sim_open): Delete check for host endianness - performed by
 274         sim_config.
 275         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 276         (sim_open): Move much of the initialization from here.
 277         (sim_load): To here.  After the image has been loaded and
 278         endianness set.
 279         (sim_open): Move ColdReset from here.
 280         (sim_create_inferior): To here.
 281         (sim_open): Make FP check less dependant on host endianness.
 282
 283         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 284         run.
 285         * interp.c (sim_set_callbacks): Delete.
 286
 287         * interp.c (membank, membank_base, membank_size): Replace with
 288         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 289         (sim_open): Remove call to callback->init. gdb/run do this.
 290
 291         * interp.c: Update
 292
 293         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 294
 295         * interp.c (big_endian_p): Delete, replaced by
 296         current_target_byte_order.
 297
 298 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 299
 300         * interp.c (host_read_long, host_read_word, host_swap_word,
 301         host_swap_long): Delete. Using common sim-endian.
 302         (sim_fetch_register, sim_store_register): Use H2T.
 303         (pipeline_ticks): Delete.  Handled by sim-events.
 304         (sim_info): Update.
 305         (sim_engine_run): Update.
 306
 307 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 308
 309         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 310         reason from here.
 311         (SignalException): To here. Signal using sim_engine_halt.
 312         (sim_stop_reason): Delete, moved to common.
 313
 314 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 315
 316         * interp.c (sim_open): Add callback argument.
 317         (sim_set_callbacks): Delete SIM_DESC argument.
 318         (sim_size): Ditto.
 319
 320 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 321
 322         * Makefile.in (SIM_OBJS): Add common modules.
 323
 324         * interp.c (sim_set_callbacks): Also set SD callback.
 325         (set_endianness, xfer_*, swap_*): Delete.
 326         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 327         Change to functions using sim-endian macros.
 328         (control_c, sim_stop): Delete, use common version.
 329         (simulate): Convert into.
 330         (sim_engine_run): This function.
 331         (sim_resume): Delete.
 332
 333         * interp.c (simulation): New variable - the simulator object.
 334         (sim_kind): Delete global - merged into simulation.
 335         (sim_load): Cleanup.  Move PC assignment from here.
 336         (sim_create_inferior): To here.
 337
 338         * sim-main.h: New file.
 339         * interp.c (sim-main.h): Include.
 340
 341 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 342
 343         * configure: Regenerated to track ../common/aclocal.m4 changes.
 344
 345 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 346
 347         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 348
 349 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 350
 351         * gencode.c (build_instruction): DIV instructions: check
 352         for division by zero and integer overflow before using
 353         host's division operation.
 354
 355 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 356
 357         * Makefile.in (SIM_OBJS): Add sim-load.o.
 358         * interp.c: #include bfd.h.
 359         (target_byte_order): Delete.
 360         (sim_kind, myname, big_endian_p): New static locals.
 361         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 362         after argument parsing.  Recognize -E arg, set endianness accordingly.
 363         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 364         load file into simulator.  Set PC from bfd.
 365         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 366         (set_endianness): Use big_endian_p instead of target_byte_order.
 367
 368 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 369
 370         * interp.c (sim_size): Delete prototype - conflicts with
 371         definition in remote-sim.h.  Correct definition.
 372
 373 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 374
 375         * configure: Regenerated to track ../common/aclocal.m4 changes.
 376         * config.in: Ditto.
 377
 378 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 379
 380         * interp.c (sim_open): New arg `kind'.
 381
 382         * configure: Regenerated to track ../common/aclocal.m4 changes.
 383
 384 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 385
 386         * configure: Regenerated to track ../common/aclocal.m4 changes.
 387
 388 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 389
 390         * interp.c (sim_open): Set optind to 0 before calling getopt.
 391
 392 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 393
 394         * configure: Regenerated to track ../common/aclocal.m4 changes.
 395
 396 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 397
 398         * interp.c : Replace uses of pr_addr with pr_uword64
 399         where the bit length is always 64 independent of SIM_ADDR.
 400         (pr_uword64) : added.
 401
 402 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 403
 404         * configure: Re-generate.
 405
 406 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 407
 408         * configure: Regenerate to track ../common/aclocal.m4 changes.
 409
 410 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 411
 412         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 413         in argv form.
 414         (other sim_*): New SIM_DESC argument.
 415
 416 start-sanitize-r5900
 417 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 418
 419         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 420         Change values to avoid overloading DOUBLEWORD which is tested
 421         for all insns.
 422         * gencode.c: reinstate "offending code".
 423
 424 end-sanitize-r5900
 425 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 426
 427         * interp.c: Fix printing of addresses for non-64-bit targets.
 428         (pr_addr): Add function to print address based on size.
 429 start-sanitize-r5900
 430         * gencode.c: #ifdef out offending code until a permanent fix
 431         can be added.  Code is causing build errors for non-5900 mips targets.
 432 end-sanitize-r5900
 433
 434 start-sanitize-r5900
 435 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 436
 437         * gencode.c (process_instructions): Correct test for ISA dependent
 438         architecture bits in isa field of MIPS_DECODE.
 439
 440 end-sanitize-r5900
 441 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 442
 443         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 444
 445 start-sanitize-r5900
 446 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 447
 448         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 449         PMADDUW.
 450
 451 end-sanitize-r5900
 452 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 453
 454         * gencode.c (build_mips16_operands): Correct computation of base
 455         address for extended PC relative instruction.
 456
 457 start-sanitize-r5900
 458 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 459
 460         * Makefile.in, configure, configure.in, gencode.c,
 461         interp.c, support.h: add r5900.
 462
 463 end-sanitize-r5900
 464 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 465
 466         * interp.c (mips16_entry): Add support for floating point cases.
 467         (SignalException): Pass floating point cases to mips16_entry.
 468         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 469         registers.
 470         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 471         or fmt_word.
 472         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 473         and then set the state to fmt_uninterpreted.
 474         (COP_SW): Temporarily set the state to fmt_word while calling
 475         ValueFPR.
 476
 477 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 478
 479         * gencode.c (build_instruction): The high order may be set in the
 480         comparison flags at any ISA level, not just ISA 4.
 481
 482 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 483
 484         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 485         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 486         * configure.in: sinclude ../common/aclocal.m4.
 487         * configure: Regenerated.
 488
 489 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 490
 491         * configure: Rebuild after change to aclocal.m4.
 492
 493 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 494
 495         * configure configure.in Makefile.in:  Update to new configure
 496         scheme which is more compatible with WinGDB builds.
 497         * configure.in:  Improve comment on how to run autoconf.
 498         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 499         * Makefile.in:  Use autoconf substitution to install common
 500         makefile fragment.
 501
 502 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 503
 504         * gencode.c (build_instruction): Use BigEndianCPU instead of
 505         ByteSwapMem.
 506
 507 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 508
 509         * interp.c (sim_monitor): Make output to stdout visible in
 510         wingdb's I/O log window.
 511
 512 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 513
 514         * support.h: Undo previous change to SIGTRAP
 515         and SIGQUIT values.
 516
 517 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 518
 519         * interp.c (store_word, load_word): New static functions.
 520         (mips16_entry): New static function.
 521         (SignalException): Look for mips16 entry and exit instructions.
 522         (simulate): Use the correct index when setting fpr_state after
 523         doing a pending move.
 524
 525 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 526
 527         * interp.c: Fix byte-swapping code throughout to work on
 528         both little- and big-endian hosts.
 529
 530 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 531
 532         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 533         with gdb/config/i386/xm-windows.h.
 534
 535 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 536
 537         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 538         that messes up arithmetic shifts.
 539
 540 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 541
 542         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 543         SIGTRAP and SIGQUIT for _WIN32.
 544
 545 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 546
 547         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 548         force a 64 bit multiplication.
 549         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 550         destination register is 0, since that is the default mips16 nop
 551         instruction.
 552
 553 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 554
 555         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 556         (build_endian_shift): Don't check proc64.
 557         (build_instruction): Always set memval to uword64.  Cast op2 to
 558         uword64 when shifting it left in memory instructions.  Always use
 559         the same code for stores--don't special case proc64.
 560
 561         * gencode.c (build_mips16_operands): Fix base PC value for PC
 562         relative operands.
 563         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 564         jal instruction.
 565         * interp.c (simJALDELAYSLOT): Define.
 566         (JALDELAYSLOT): Define.
 567         (INDELAYSLOT, INJALDELAYSLOT): Define.
 568         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 569
 570 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 571
 572         * interp.c (sim_open): add flush_cache as a PMON routine
 573         (sim_monitor): handle flush_cache by ignoring it
 574
 575 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 576
 577         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 578         BigEndianMem.
 579         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 580         (BigEndianMem): Rename to ByteSwapMem and change sense.
 581         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 582         BigEndianMem references to !ByteSwapMem.
 583         (set_endianness): New function, with prototype.
 584         (sim_open): Call set_endianness.
 585         (sim_info): Use simBE instead of BigEndianMem.
 586         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 587         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 588         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 589         ifdefs, keeping the prototype declaration.
 590         (swap_word): Rewrite correctly.
 591         (ColdReset): Delete references to CONFIG.  Delete endianness related
 592         code; moved to set_endianness.
 593
 594 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 595
 596         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 597         * interp.c (CHECKHILO): Define away.
 598         (simSIGINT): New macro.
 599         (membank_size): Increase from 1MB to 2MB.
 600         (control_c): New function.
 601         (sim_resume): Rename parameter signal to signal_number.  Add local
 602         variable prev.  Call signal before and after simulate.
 603         (sim_stop_reason): Add simSIGINT support.
 604         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 605         functions always.
 606         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 607         if logfh is NULL.
 608         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 609         a call to sim_warning.
 610
 611 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 612
 613         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 614         16 bit instructions.
 615
 616 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 617
 618         Add support for mips16 (16 bit MIPS implementation):
 619         * gencode.c (inst_type): Add mips16 instruction encoding types.
 620         (GETDATASIZEINSN): Define.
 621         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 622         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 623         mtlo.
 624         (MIPS16_DECODE): New table, for mips16 instructions.
 625         (bitmap_val): New static function.
 626         (struct mips16_op): Define.
 627         (mips16_op_table): New table, for mips16 operands.
 628         (build_mips16_operands): New static function.
 629         (process_instructions): If PC is odd, decode a mips16
 630         instruction.  Break out instruction handling into new
 631         build_instruction function.
 632         (build_instruction): New static function, broken out of
 633         process_instructions.  Check modifiers rather than flags for SHIFT
 634         bit count and m[ft]{hi,lo} direction.
 635         (usage): Pass program name to fprintf.
 636         (main): Remove unused variable this_option_optind.  Change
 637         ``*loptarg++'' to ``loptarg++''.
 638         (my_strtoul): Parenthesize && within ||.
 639         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 640         (simulate): If PC is odd, fetch a 16 bit instruction, and
 641         increment PC by 2 rather than 4.
 642         * configure.in: Add case for mips16*-*-*.
 643         * configure: Rebuild.
 644
 645 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 646
 647         * interp.c: Allow -t to enable tracing in standalone simulator.
 648         Fix garbage output in trace file and error messages.
 649
 650 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 651
 652         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 653         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 654         * configure.in: Simplify using macros in ../common/aclocal.m4.
 655         * configure: Regenerated.
 656         * tconfig.in: New file.
 657
 658 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 659
 660         * interp.c: Fix bugs in 64-bit port.
 661         Use ansi function declarations for msvc compiler.
 662         Initialize and test file pointer in trace code.
 663         Prevent duplicate definition of LAST_EMED_REGNUM.
 664
 665 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 666
 667         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 668
 669 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 670
 671         * interp.c (SignalException): Check for explicit terminating
 672         breakpoint value.
 673         * gencode.c: Pass instruction value through SignalException()
 674         calls for Trap, Breakpoint and Syscall.
 675
 676 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 677
 678         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 679         only used on those hosts that provide it.
 680         * configure.in: Add sqrt() to list of functions to be checked for.
 681         * config.in: Re-generated.
 682         * configure: Re-generated.
 683
 684 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 685
 686         * gencode.c (process_instructions): Call build_endian_shift when
 687         expanding STORE RIGHT, to fix swr.
 688         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 689         clear the high bits.
 690         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 691         Fix float to int conversions to produce signed values.
 692
 693 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 694
 695         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 696         (process_instructions): Correct handling of nor instruction.
 697         Correct shift count for 32 bit shift instructions. Correct sign
 698         extension for arithmetic shifts to not shift the number of bits in
 699         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 700         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 701         Fix madd.
 702         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 703         It's OK to have a mult follow a mult.  What's not OK is to have a
 704         mult follow an mfhi.
 705         (Convert): Comment out incorrect rounding code.
 706
 707 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 708
 709         * interp.c (sim_monitor): Improved monitor printf
 710         simulation. Tidied up simulator warnings, and added "--log" option
 711         for directing warning message output.
 712         * gencode.c: Use sim_warning() rather than WARNING macro.
 713
 714 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 715
 716         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 717         getopt1.o, rather than on gencode.c.  Link objects together.
 718         Don't link against -liberty.
 719         (gencode.o, getopt.o, getopt1.o): New targets.
 720         * gencode.c: Include <ctype.h> and "ansidecl.h".
 721         (AND): Undefine after including "ansidecl.h".
 722         (ULONG_MAX): Define if not defined.
 723         (OP_*): Don't define macros; now defined in opcode/mips.h.
 724         (main): Call my_strtoul rather than strtoul.
 725         (my_strtoul): New static function.
 726
 727 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 728
 729         * gencode.c (process_instructions):  Generate word64 and uword64
 730         instead of `long long' and `unsigned long long' data types.
 731         * interp.c:  #include sysdep.h to get signals, and define default
 732         for SIGBUS.
 733         * (Convert):  Work around for Visual-C++ compiler bug with type
 734         conversion.
 735         * support.h:  Make things compile under Visual-C++ by using
 736         __int64 instead of `long long'.  Change many refs to long long
 737         into word64/uword64 typedefs.
 738
 739 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 740
 741         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 742         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 743         (docdir): Removed.
 744         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 745         (AC_PROG_INSTALL): Added.
 746         (AC_PROG_CC): Moved to before configure.host call.
 747         * configure: Rebuilt.
 748
 749 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 750
 751         * configure.in: Define @SIMCONF@ depending on mips target.
 752         * configure: Rebuild.
 753         * Makefile.in (run): Add @SIMCONF@ to control simulator
 754         construction.
 755         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 756         * interp.c: Remove some debugging, provide more detailed error
 757         messages, update memory accesses to use LOADDRMASK.
 758
 759 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 760
 761         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 762         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 763         stamp-h.
 764         * configure: Rebuild.
 765         * config.in: New file, generated by autoheader.
 766         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 767         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 768         HAVE_ANINT and HAVE_AINT, as appropriate.
 769         * Makefile.in (run): Use @LIBS@ rather than -lm.
 770         (interp.o): Depend upon config.h.
 771         (Makefile): Just rebuild Makefile.
 772         (clean): Remove stamp-h.
 773         (mostlyclean): Make the same as clean, not as distclean.
 774         (config.h, stamp-h): New targets.
 775
 776 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 777
 778         * interp.c (ColdReset): Fix boolean test. Make all simulator
 779         globals static.
 780
 781 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 782
 783         * interp.c (xfer_direct_word, xfer_direct_long,
 784         swap_direct_word, swap_direct_long, xfer_big_word,
 785         xfer_big_long, xfer_little_word, xfer_little_long,
 786         swap_word,swap_long): Added.
 787         * interp.c (ColdReset): Provide function indirection to
 788         host<->simulated_target transfer routines.
 789         * interp.c (sim_store_register, sim_fetch_register): Updated to
 790         make use of indirected transfer routines.
 791
 792 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 793
 794         * gencode.c (process_instructions): Ensure FP ABS instruction
 795         recognised.
 796         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 797         system call support.
 798
 799 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 800
 801         * interp.c (sim_do_command): Complain if callback structure not
 802         initialised.
 803
 804 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 805
 806         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 807         support for Sun hosts.
 808         * Makefile.in (gencode): Ensure the host compiler and libraries
 809         used for cross-hosted build.
 810
 811 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 812
 813         * interp.c, gencode.c: Some more (TODO) tidying.
 814
 815 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 816
 817         * gencode.c, interp.c: Replaced explicit long long references with
 818         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 819         * support.h (SET64LO, SET64HI): Macros added.
 820
 821 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 822
 823         * configure: Regenerate with autoconf 2.7.
 824
 825 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 826
 827         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 828         * support.h: Remove superfluous "1" from #if.
 829         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 830
 831 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 832
 833         * interp.c (StoreFPR): Control UndefinedResult() call on
 834         WARN_RESULT manifest.
 835
 836 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 837
 838         * gencode.c: Tidied instruction decoding, and added FP instruction
 839         support.
 840
 841         * interp.c: Added dineroIII, and BSD profiling support. Also
 842         run-time FP handling.
 843
 844 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 845
 846         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 847         gencode.c, interp.c, support.h: created.