sim/mips/ChangeLog

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