sim/mips/ChangeLog

   1 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * configure.in: Configure non-strict memory alignment.
   4         * configure: Regenerated to track ../common/aclocal.m4 changes.
   5
   6 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   7
   8         * configure: Regenerated to track ../common/aclocal.m4 changes.
   9
  10 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
  11
  12         * gencode.c (SDBBP,DERET): Added (3900) insns.
  13         (RFE): Turn on for 3900.
  14         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
  15         (dsstate): Made global.
  16         (SUBTARGET_R3900): Added.
  17         (CANCELDELAYSLOT): New.
  18         (SignalException): Ignore SystemCall rather than ignore and
  19         terminate.  Add DebugBreakPoint handling.
  20         (decode_coproc): New insns RFE, DERET; and new registers Debug
  21         and DEPC protected by SUBTARGET_R3900.
  22         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
  23         bits explicitly.
  24         * Makefile.in,configure.in: Add mips subtarget option.
  25         * configure: Update.
  26
  27 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
  28
  29         * gencode.c: Add r3900 (tx39).
  30
  31 start-sanitize-tx19
  32         * gencode.c: Fix some configuration problems by improving
  33         the relationship between tx19 and tx39.
  34 end-sanitize-tx19
  35
  36 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
  37
  38         * gencode.c (build_instruction): Don't need to subtract 4 for
  39         JALR, just 2.
  40
  41 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
  42
  43         * interp.c: Correct some HASFPU problems.
  44
  45 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  46
  47         * configure: Regenerated to track ../common/aclocal.m4 changes.
  48
  49 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  50
  51         * interp.c (mips_options): Fix samples option short form, should
  52         be `x'.
  53
  54 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  55
  56         * interp.c (sim_info): Enable info code.  Was just returning.
  57
  58 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  59
  60         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
  61         MFC0.
  62
  63 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  64
  65         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
  66         constants.
  67         (build_instruction): Ditto for LL.
  68
  69 start-sanitize-tx19
  70 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
  71
  72         * mips/configure.in, mips/gencode: Add tx19/r1900.
  73
  74 end-sanitize-tx19
  75 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
  76
  77         * configure: Regenerated to track ../common/aclocal.m4 changes.
  78
  79 start-sanitize-r5900
  80 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  81
  82         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
  83         for overflow due to ABS of MININT, set result to MAXINT.
  84         (build_instruction): For "psrlvw", signextend bit 31.
  85
  86 end-sanitize-r5900
  87 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  88
  89         * configure: Regenerated to track ../common/aclocal.m4 changes.
  90         * config.in: Ditto.
  91
  92 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  93
  94         * interp.c (sim_open): Add call to sim_analyze_program, update
  95         call to sim_config.
  96
  97 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  98
  99         * interp.c (sim_kill): Delete.
 100         (sim_create_inferior): Add ABFD argument. Set PC from same.
 101         (sim_load): Move code initializing trap handlers from here.
 102         (sim_open): To here.
 103         (sim_load): Delete, use sim-hload.c.
 104
 105         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 106
 107 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 108
 109         * configure: Regenerated to track ../common/aclocal.m4 changes.
 110         * config.in: Ditto.
 111
 112 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 113
 114         * interp.c (sim_open): Add ABFD argument.
 115         (sim_load): Move call to sim_config from here.
 116         (sim_open): To here.  Check return status.
 117
 118 start-sanitize-r5900
 119         * gencode.c (build_instruction): Do not define x8000000000000000,
 120         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 121
 122 end-sanitize-r5900
 123 start-sanitize-r5900
 124 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 125
 126         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 127         "pdivuw" check for overflow due to signed divide by -1.
 128
 129 end-sanitize-r5900
 130 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 131
 132         * gencode.c (build_instruction): Two arg MADD should
 133         not assign result to $0.
 134
 135 start-sanitize-r5900
 136 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 137
 138         * gencode.c (build_instruction): For "ppac5" use unsigned
 139         arrithmetic so that the sign bit doesn't smear when right shifted.
 140         (build_instruction): For "pdiv" perform sign extension when
 141         storing results in HI and LO.
 142         (build_instructions): For "pdiv" and "pdivbw" check for
 143         divide-by-zero.
 144         (build_instruction): For "pmfhl.slw" update hi part of dest
 145         register as well as low part.
 146         (build_instruction): For "pmfhl" portably handle long long values.
 147         (build_instruction): For "pmfhl.sh" correctly negative values.
 148         Store half words 2 and three in the correct place.
 149         (build_instruction): For "psllvw", sign extend value after shift.
 150
 151 end-sanitize-r5900
 152 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 153
 154         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 155         * sim/mips/configure.in: Regenerate.
 156
 157 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 158
 159         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 160         signed8, unsigned8 et.al. types.
 161
 162 start-sanitize-r5900
 163         * gencode.c (build_instruction): For PMULTU* do not sign extend
 164         registers.  Make generated code easier to debug.
 165
 166 end-sanitize-r5900
 167         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 168         hosts when selecting subreg.
 169
 170 start-sanitize-r5900
 171 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 172
 173         * gencode.c (type_for_data_len): For 32bit operations concerned
 174         with overflow, perform op using 64bits.
 175         (build_instruction): For PADD, always compute operation using type
 176         returned by type_for_data_len.
 177         (build_instruction): For PSUBU, when overflow, saturate to zero as
 178         actually underflow.
 179
 180 end-sanitize-r5900
 181 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 182
 183 start-sanitize-r5900
 184         * gencode.c (build_instruction): Handle "pext5" according to
 185         version 1.95 of the r5900 ISA.
 186
 187         * gencode.c (build_instruction): Handle "ppac5" according to
 188         version 1.95 of the r5900 ISA.
 189
 190 end-sanitize-r5900
 191         * interp.c (sim_engine_run): Reset the ZERO register to zero
 192         regardless of FEATURE_WARN_ZERO.
 193         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 194
 195 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 196
 197         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 198         (SignalException): For BreakPoints ignore any mode bits and just
 199         save the PC.
 200         (SignalException): Always set the CAUSE register.
 201
 202 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 203
 204         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 205         exception has been taken.
 206
 207         * interp.c: Implement the ERET and mt/f sr instructions.
 208
 209 start-sanitize-r5900
 210 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 211
 212         * gencode.c (build_instruction): For paddu, extract unsigned
 213         sub-fields.
 214
 215         * gencode.c (build_instruction): Saturate padds instead of padd
 216         instructions.
 217
 218 end-sanitize-r5900
 219 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 220
 221         * interp.c (SignalException): Don't bother restarting an
 222         interrupt.
 223
 224 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 225
 226         * interp.c (SignalException): Really take an interrupt.
 227         (interrupt_event): Only deliver interrupts when enabled.
 228
 229 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 230
 231         * interp.c (sim_info): Only print info when verbose.
 232         (sim_info) Use sim_io_printf for output.
 233
 234 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 235
 236         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 237         mips architectures.
 238
 239 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 240
 241         * interp.c (sim_do_command): Check for common commands if a
 242         simulator specific command fails.
 243
 244 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 245
 246         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 247         and simBE when DEBUG is defined.
 248
 249 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 250
 251         * interp.c (interrupt_event): New function.  Pass exception event
 252         onto exception handler.
 253
 254         * configure.in: Check for stdlib.h.
 255         * configure: Regenerate.
 256
 257         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 258         variable declaration.
 259         (build_instruction): Initialize memval1.
 260         (build_instruction): Add UNUSED attribute to byte, bigend,
 261         reverse.
 262         (build_operands): Ditto.
 263
 264         * interp.c: Fix GCC warnings.
 265         (sim_get_quit_code): Delete.
 266
 267         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 268         * Makefile.in: Ditto.
 269         * configure: Re-generate.
 270
 271         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 272
 273 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 274
 275         * interp.c (mips_option_handler): New function parse argumes using
 276         sim-options.
 277         (myname): Replace with STATE_MY_NAME.
 278         (sim_open): Delete check for host endianness - performed by
 279         sim_config.
 280         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 281         (sim_open): Move much of the initialization from here.
 282         (sim_load): To here.  After the image has been loaded and
 283         endianness set.
 284         (sim_open): Move ColdReset from here.
 285         (sim_create_inferior): To here.
 286         (sim_open): Make FP check less dependant on host endianness.
 287
 288         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 289         run.
 290         * interp.c (sim_set_callbacks): Delete.
 291
 292         * interp.c (membank, membank_base, membank_size): Replace with
 293         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 294         (sim_open): Remove call to callback->init. gdb/run do this.
 295
 296         * interp.c: Update
 297
 298         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 299
 300         * interp.c (big_endian_p): Delete, replaced by
 301         current_target_byte_order.
 302
 303 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 304
 305         * interp.c (host_read_long, host_read_word, host_swap_word,
 306         host_swap_long): Delete. Using common sim-endian.
 307         (sim_fetch_register, sim_store_register): Use H2T.
 308         (pipeline_ticks): Delete.  Handled by sim-events.
 309         (sim_info): Update.
 310         (sim_engine_run): Update.
 311
 312 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 313
 314         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 315         reason from here.
 316         (SignalException): To here. Signal using sim_engine_halt.
 317         (sim_stop_reason): Delete, moved to common.
 318
 319 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 320
 321         * interp.c (sim_open): Add callback argument.
 322         (sim_set_callbacks): Delete SIM_DESC argument.
 323         (sim_size): Ditto.
 324
 325 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 326
 327         * Makefile.in (SIM_OBJS): Add common modules.
 328
 329         * interp.c (sim_set_callbacks): Also set SD callback.
 330         (set_endianness, xfer_*, swap_*): Delete.
 331         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 332         Change to functions using sim-endian macros.
 333         (control_c, sim_stop): Delete, use common version.
 334         (simulate): Convert into.
 335         (sim_engine_run): This function.
 336         (sim_resume): Delete.
 337
 338         * interp.c (simulation): New variable - the simulator object.
 339         (sim_kind): Delete global - merged into simulation.
 340         (sim_load): Cleanup.  Move PC assignment from here.
 341         (sim_create_inferior): To here.
 342
 343         * sim-main.h: New file.
 344         * interp.c (sim-main.h): Include.
 345
 346 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 347
 348         * configure: Regenerated to track ../common/aclocal.m4 changes.
 349
 350 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 351
 352         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 353
 354 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 355
 356         * gencode.c (build_instruction): DIV instructions: check
 357         for division by zero and integer overflow before using
 358         host's division operation.
 359
 360 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 361
 362         * Makefile.in (SIM_OBJS): Add sim-load.o.
 363         * interp.c: #include bfd.h.
 364         (target_byte_order): Delete.
 365         (sim_kind, myname, big_endian_p): New static locals.
 366         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 367         after argument parsing.  Recognize -E arg, set endianness accordingly.
 368         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 369         load file into simulator.  Set PC from bfd.
 370         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 371         (set_endianness): Use big_endian_p instead of target_byte_order.
 372
 373 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 374
 375         * interp.c (sim_size): Delete prototype - conflicts with
 376         definition in remote-sim.h.  Correct definition.
 377
 378 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 379
 380         * configure: Regenerated to track ../common/aclocal.m4 changes.
 381         * config.in: Ditto.
 382
 383 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 384
 385         * interp.c (sim_open): New arg `kind'.
 386
 387         * configure: Regenerated to track ../common/aclocal.m4 changes.
 388
 389 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 390
 391         * configure: Regenerated to track ../common/aclocal.m4 changes.
 392
 393 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 394
 395         * interp.c (sim_open): Set optind to 0 before calling getopt.
 396
 397 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 398
 399         * configure: Regenerated to track ../common/aclocal.m4 changes.
 400
 401 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 402
 403         * interp.c : Replace uses of pr_addr with pr_uword64
 404         where the bit length is always 64 independent of SIM_ADDR.
 405         (pr_uword64) : added.
 406
 407 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 408
 409         * configure: Re-generate.
 410
 411 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 412
 413         * configure: Regenerate to track ../common/aclocal.m4 changes.
 414
 415 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 416
 417         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 418         in argv form.
 419         (other sim_*): New SIM_DESC argument.
 420
 421 start-sanitize-r5900
 422 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 423
 424         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 425         Change values to avoid overloading DOUBLEWORD which is tested
 426         for all insns.
 427         * gencode.c: reinstate "offending code".
 428
 429 end-sanitize-r5900
 430 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 431
 432         * interp.c: Fix printing of addresses for non-64-bit targets.
 433         (pr_addr): Add function to print address based on size.
 434 start-sanitize-r5900
 435         * gencode.c: #ifdef out offending code until a permanent fix
 436         can be added.  Code is causing build errors for non-5900 mips targets.
 437 end-sanitize-r5900
 438
 439 start-sanitize-r5900
 440 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 441
 442         * gencode.c (process_instructions): Correct test for ISA dependent
 443         architecture bits in isa field of MIPS_DECODE.
 444
 445 end-sanitize-r5900
 446 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 447
 448         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 449
 450 start-sanitize-r5900
 451 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 452
 453         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 454         PMADDUW.
 455
 456 end-sanitize-r5900
 457 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 458
 459         * gencode.c (build_mips16_operands): Correct computation of base
 460         address for extended PC relative instruction.
 461
 462 start-sanitize-r5900
 463 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 464
 465         * Makefile.in, configure, configure.in, gencode.c,
 466         interp.c, support.h: add r5900.
 467
 468 end-sanitize-r5900
 469 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 470
 471         * interp.c (mips16_entry): Add support for floating point cases.
 472         (SignalException): Pass floating point cases to mips16_entry.
 473         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 474         registers.
 475         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 476         or fmt_word.
 477         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 478         and then set the state to fmt_uninterpreted.
 479         (COP_SW): Temporarily set the state to fmt_word while calling
 480         ValueFPR.
 481
 482 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 483
 484         * gencode.c (build_instruction): The high order may be set in the
 485         comparison flags at any ISA level, not just ISA 4.
 486
 487 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 488
 489         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 490         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 491         * configure.in: sinclude ../common/aclocal.m4.
 492         * configure: Regenerated.
 493
 494 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 495
 496         * configure: Rebuild after change to aclocal.m4.
 497
 498 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 499
 500         * configure configure.in Makefile.in:  Update to new configure
 501         scheme which is more compatible with WinGDB builds.
 502         * configure.in:  Improve comment on how to run autoconf.
 503         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 504         * Makefile.in:  Use autoconf substitution to install common
 505         makefile fragment.
 506
 507 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 508
 509         * gencode.c (build_instruction): Use BigEndianCPU instead of
 510         ByteSwapMem.
 511
 512 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 513
 514         * interp.c (sim_monitor): Make output to stdout visible in
 515         wingdb's I/O log window.
 516
 517 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 518
 519         * support.h: Undo previous change to SIGTRAP
 520         and SIGQUIT values.
 521
 522 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 523
 524         * interp.c (store_word, load_word): New static functions.
 525         (mips16_entry): New static function.
 526         (SignalException): Look for mips16 entry and exit instructions.
 527         (simulate): Use the correct index when setting fpr_state after
 528         doing a pending move.
 529
 530 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 531
 532         * interp.c: Fix byte-swapping code throughout to work on
 533         both little- and big-endian hosts.
 534
 535 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 536
 537         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 538         with gdb/config/i386/xm-windows.h.
 539
 540 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 541
 542         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 543         that messes up arithmetic shifts.
 544
 545 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 546
 547         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 548         SIGTRAP and SIGQUIT for _WIN32.
 549
 550 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 551
 552         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 553         force a 64 bit multiplication.
 554         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 555         destination register is 0, since that is the default mips16 nop
 556         instruction.
 557
 558 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 559
 560         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 561         (build_endian_shift): Don't check proc64.
 562         (build_instruction): Always set memval to uword64.  Cast op2 to
 563         uword64 when shifting it left in memory instructions.  Always use
 564         the same code for stores--don't special case proc64.
 565
 566         * gencode.c (build_mips16_operands): Fix base PC value for PC
 567         relative operands.
 568         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 569         jal instruction.
 570         * interp.c (simJALDELAYSLOT): Define.
 571         (JALDELAYSLOT): Define.
 572         (INDELAYSLOT, INJALDELAYSLOT): Define.
 573         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 574
 575 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 576
 577         * interp.c (sim_open): add flush_cache as a PMON routine
 578         (sim_monitor): handle flush_cache by ignoring it
 579
 580 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 581
 582         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 583         BigEndianMem.
 584         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 585         (BigEndianMem): Rename to ByteSwapMem and change sense.
 586         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 587         BigEndianMem references to !ByteSwapMem.
 588         (set_endianness): New function, with prototype.
 589         (sim_open): Call set_endianness.
 590         (sim_info): Use simBE instead of BigEndianMem.
 591         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 592         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 593         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 594         ifdefs, keeping the prototype declaration.
 595         (swap_word): Rewrite correctly.
 596         (ColdReset): Delete references to CONFIG.  Delete endianness related
 597         code; moved to set_endianness.
 598
 599 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 600
 601         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 602         * interp.c (CHECKHILO): Define away.
 603         (simSIGINT): New macro.
 604         (membank_size): Increase from 1MB to 2MB.
 605         (control_c): New function.
 606         (sim_resume): Rename parameter signal to signal_number.  Add local
 607         variable prev.  Call signal before and after simulate.
 608         (sim_stop_reason): Add simSIGINT support.
 609         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 610         functions always.
 611         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 612         if logfh is NULL.
 613         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 614         a call to sim_warning.
 615
 616 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 617
 618         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 619         16 bit instructions.
 620
 621 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 622
 623         Add support for mips16 (16 bit MIPS implementation):
 624         * gencode.c (inst_type): Add mips16 instruction encoding types.
 625         (GETDATASIZEINSN): Define.
 626         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 627         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 628         mtlo.
 629         (MIPS16_DECODE): New table, for mips16 instructions.
 630         (bitmap_val): New static function.
 631         (struct mips16_op): Define.
 632         (mips16_op_table): New table, for mips16 operands.
 633         (build_mips16_operands): New static function.
 634         (process_instructions): If PC is odd, decode a mips16
 635         instruction.  Break out instruction handling into new
 636         build_instruction function.
 637         (build_instruction): New static function, broken out of
 638         process_instructions.  Check modifiers rather than flags for SHIFT
 639         bit count and m[ft]{hi,lo} direction.
 640         (usage): Pass program name to fprintf.
 641         (main): Remove unused variable this_option_optind.  Change
 642         ``*loptarg++'' to ``loptarg++''.
 643         (my_strtoul): Parenthesize && within ||.
 644         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 645         (simulate): If PC is odd, fetch a 16 bit instruction, and
 646         increment PC by 2 rather than 4.
 647         * configure.in: Add case for mips16*-*-*.
 648         * configure: Rebuild.
 649
 650 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 651
 652         * interp.c: Allow -t to enable tracing in standalone simulator.
 653         Fix garbage output in trace file and error messages.
 654
 655 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 656
 657         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 658         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 659         * configure.in: Simplify using macros in ../common/aclocal.m4.
 660         * configure: Regenerated.
 661         * tconfig.in: New file.
 662
 663 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 664
 665         * interp.c: Fix bugs in 64-bit port.
 666         Use ansi function declarations for msvc compiler.
 667         Initialize and test file pointer in trace code.
 668         Prevent duplicate definition of LAST_EMED_REGNUM.
 669
 670 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 671
 672         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 673
 674 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 675
 676         * interp.c (SignalException): Check for explicit terminating
 677         breakpoint value.
 678         * gencode.c: Pass instruction value through SignalException()
 679         calls for Trap, Breakpoint and Syscall.
 680
 681 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 682
 683         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 684         only used on those hosts that provide it.
 685         * configure.in: Add sqrt() to list of functions to be checked for.
 686         * config.in: Re-generated.
 687         * configure: Re-generated.
 688
 689 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 690
 691         * gencode.c (process_instructions): Call build_endian_shift when
 692         expanding STORE RIGHT, to fix swr.
 693         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 694         clear the high bits.
 695         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 696         Fix float to int conversions to produce signed values.
 697
 698 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 699
 700         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 701         (process_instructions): Correct handling of nor instruction.
 702         Correct shift count for 32 bit shift instructions. Correct sign
 703         extension for arithmetic shifts to not shift the number of bits in
 704         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 705         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 706         Fix madd.
 707         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 708         It's OK to have a mult follow a mult.  What's not OK is to have a
 709         mult follow an mfhi.
 710         (Convert): Comment out incorrect rounding code.
 711
 712 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 713
 714         * interp.c (sim_monitor): Improved monitor printf
 715         simulation. Tidied up simulator warnings, and added "--log" option
 716         for directing warning message output.
 717         * gencode.c: Use sim_warning() rather than WARNING macro.
 718
 719 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 720
 721         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 722         getopt1.o, rather than on gencode.c.  Link objects together.
 723         Don't link against -liberty.
 724         (gencode.o, getopt.o, getopt1.o): New targets.
 725         * gencode.c: Include <ctype.h> and "ansidecl.h".
 726         (AND): Undefine after including "ansidecl.h".
 727         (ULONG_MAX): Define if not defined.
 728         (OP_*): Don't define macros; now defined in opcode/mips.h.
 729         (main): Call my_strtoul rather than strtoul.
 730         (my_strtoul): New static function.
 731
 732 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 733
 734         * gencode.c (process_instructions):  Generate word64 and uword64
 735         instead of `long long' and `unsigned long long' data types.
 736         * interp.c:  #include sysdep.h to get signals, and define default
 737         for SIGBUS.
 738         * (Convert):  Work around for Visual-C++ compiler bug with type
 739         conversion.
 740         * support.h:  Make things compile under Visual-C++ by using
 741         __int64 instead of `long long'.  Change many refs to long long
 742         into word64/uword64 typedefs.
 743
 744 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 745
 746         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 747         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 748         (docdir): Removed.
 749         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 750         (AC_PROG_INSTALL): Added.
 751         (AC_PROG_CC): Moved to before configure.host call.
 752         * configure: Rebuilt.
 753
 754 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 755
 756         * configure.in: Define @SIMCONF@ depending on mips target.
 757         * configure: Rebuild.
 758         * Makefile.in (run): Add @SIMCONF@ to control simulator
 759         construction.
 760         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 761         * interp.c: Remove some debugging, provide more detailed error
 762         messages, update memory accesses to use LOADDRMASK.
 763
 764 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 765
 766         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 767         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 768         stamp-h.
 769         * configure: Rebuild.
 770         * config.in: New file, generated by autoheader.
 771         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 772         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 773         HAVE_ANINT and HAVE_AINT, as appropriate.
 774         * Makefile.in (run): Use @LIBS@ rather than -lm.
 775         (interp.o): Depend upon config.h.
 776         (Makefile): Just rebuild Makefile.
 777         (clean): Remove stamp-h.
 778         (mostlyclean): Make the same as clean, not as distclean.
 779         (config.h, stamp-h): New targets.
 780
 781 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 782
 783         * interp.c (ColdReset): Fix boolean test. Make all simulator
 784         globals static.
 785
 786 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 787
 788         * interp.c (xfer_direct_word, xfer_direct_long,
 789         swap_direct_word, swap_direct_long, xfer_big_word,
 790         xfer_big_long, xfer_little_word, xfer_little_long,
 791         swap_word,swap_long): Added.
 792         * interp.c (ColdReset): Provide function indirection to
 793         host<->simulated_target transfer routines.
 794         * interp.c (sim_store_register, sim_fetch_register): Updated to
 795         make use of indirected transfer routines.
 796
 797 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 798
 799         * gencode.c (process_instructions): Ensure FP ABS instruction
 800         recognised.
 801         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 802         system call support.
 803
 804 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 805
 806         * interp.c (sim_do_command): Complain if callback structure not
 807         initialised.
 808
 809 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 810
 811         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 812         support for Sun hosts.
 813         * Makefile.in (gencode): Ensure the host compiler and libraries
 814         used for cross-hosted build.
 815
 816 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 817
 818         * interp.c, gencode.c: Some more (TODO) tidying.
 819
 820 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 821
 822         * gencode.c, interp.c: Replaced explicit long long references with
 823         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 824         * support.h (SET64LO, SET64HI): Macros added.
 825
 826 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 827
 828         * configure: Regenerate with autoconf 2.7.
 829
 830 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 831
 832         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 833         * support.h: Remove superfluous "1" from #if.
 834         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 835
 836 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 837
 838         * interp.c (StoreFPR): Control UndefinedResult() call on
 839         WARN_RESULT manifest.
 840
 841 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 842
 843         * gencode.c: Tidied instruction decoding, and added FP instruction
 844         support.
 845
 846         * interp.c: Added dineroIII, and BSD profiling support. Also
 847         run-time FP handling.
 848
 849 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 850
 851         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 852         gencode.c, interp.c, support.h: created.