sim/mips/ChangeLog

   1 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
   4         MIPS targets.
   5
   6 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   7
   8         * configure: Regenerated to track ../common/aclocal.m4 changes.
   9
  10 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  11
  12         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
  13         SIM_RESERVED_BITS): Delete, moved to common.
  14         (SIM_EXTRA_CFLAGS): Update.
  15
  16 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  17
  18         * configure.in: Configure non-strict memory alignment.
  19         * configure: Regenerated to track ../common/aclocal.m4 changes.
  20
  21 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  22
  23         * configure: Regenerated to track ../common/aclocal.m4 changes.
  24
  25 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
  26
  27         * gencode.c (SDBBP,DERET): Added (3900) insns.
  28         (RFE): Turn on for 3900.
  29         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
  30         (dsstate): Made global.
  31         (SUBTARGET_R3900): Added.
  32         (CANCELDELAYSLOT): New.
  33         (SignalException): Ignore SystemCall rather than ignore and
  34         terminate.  Add DebugBreakPoint handling.
  35         (decode_coproc): New insns RFE, DERET; and new registers Debug
  36         and DEPC protected by SUBTARGET_R3900.
  37         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
  38         bits explicitly.
  39         * Makefile.in,configure.in: Add mips subtarget option.
  40         * configure: Update.
  41
  42 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
  43
  44         * gencode.c: Add r3900 (tx39).
  45
  46 start-sanitize-tx19
  47         * gencode.c: Fix some configuration problems by improving
  48         the relationship between tx19 and tx39.
  49 end-sanitize-tx19
  50
  51 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
  52
  53         * gencode.c (build_instruction): Don't need to subtract 4 for
  54         JALR, just 2.
  55
  56 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
  57
  58         * interp.c: Correct some HASFPU problems.
  59
  60 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  61
  62         * configure: Regenerated to track ../common/aclocal.m4 changes.
  63
  64 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  65
  66         * interp.c (mips_options): Fix samples option short form, should
  67         be `x'.
  68
  69 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  70
  71         * interp.c (sim_info): Enable info code.  Was just returning.
  72
  73 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  74
  75         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
  76         MFC0.
  77
  78 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  79
  80         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
  81         constants.
  82         (build_instruction): Ditto for LL.
  83
  84 start-sanitize-tx19
  85 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
  86
  87         * mips/configure.in, mips/gencode: Add tx19/r1900.
  88
  89 end-sanitize-tx19
  90 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
  91
  92         * configure: Regenerated to track ../common/aclocal.m4 changes.
  93
  94 start-sanitize-r5900
  95 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  96
  97         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
  98         for overflow due to ABS of MININT, set result to MAXINT.
  99         (build_instruction): For "psrlvw", signextend bit 31.
 100
 101 end-sanitize-r5900
 102 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 103
 104         * configure: Regenerated to track ../common/aclocal.m4 changes.
 105         * config.in: Ditto.
 106
 107 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 108
 109         * interp.c (sim_open): Add call to sim_analyze_program, update
 110         call to sim_config.
 111
 112 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 113
 114         * interp.c (sim_kill): Delete.
 115         (sim_create_inferior): Add ABFD argument. Set PC from same.
 116         (sim_load): Move code initializing trap handlers from here.
 117         (sim_open): To here.
 118         (sim_load): Delete, use sim-hload.c.
 119
 120         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 121
 122 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 123
 124         * configure: Regenerated to track ../common/aclocal.m4 changes.
 125         * config.in: Ditto.
 126
 127 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 128
 129         * interp.c (sim_open): Add ABFD argument.
 130         (sim_load): Move call to sim_config from here.
 131         (sim_open): To here.  Check return status.
 132
 133 start-sanitize-r5900
 134         * gencode.c (build_instruction): Do not define x8000000000000000,
 135         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 136
 137 end-sanitize-r5900
 138 start-sanitize-r5900
 139 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 140
 141         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 142         "pdivuw" check for overflow due to signed divide by -1.
 143
 144 end-sanitize-r5900
 145 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 146
 147         * gencode.c (build_instruction): Two arg MADD should
 148         not assign result to $0.
 149
 150 start-sanitize-r5900
 151 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 152
 153         * gencode.c (build_instruction): For "ppac5" use unsigned
 154         arrithmetic so that the sign bit doesn't smear when right shifted.
 155         (build_instruction): For "pdiv" perform sign extension when
 156         storing results in HI and LO.
 157         (build_instructions): For "pdiv" and "pdivbw" check for
 158         divide-by-zero.
 159         (build_instruction): For "pmfhl.slw" update hi part of dest
 160         register as well as low part.
 161         (build_instruction): For "pmfhl" portably handle long long values.
 162         (build_instruction): For "pmfhl.sh" correctly negative values.
 163         Store half words 2 and three in the correct place.
 164         (build_instruction): For "psllvw", sign extend value after shift.
 165
 166 end-sanitize-r5900
 167 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 168
 169         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 170         * sim/mips/configure.in: Regenerate.
 171
 172 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 173
 174         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 175         signed8, unsigned8 et.al. types.
 176
 177 start-sanitize-r5900
 178         * gencode.c (build_instruction): For PMULTU* do not sign extend
 179         registers.  Make generated code easier to debug.
 180
 181 end-sanitize-r5900
 182         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 183         hosts when selecting subreg.
 184
 185 start-sanitize-r5900
 186 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 187
 188         * gencode.c (type_for_data_len): For 32bit operations concerned
 189         with overflow, perform op using 64bits.
 190         (build_instruction): For PADD, always compute operation using type
 191         returned by type_for_data_len.
 192         (build_instruction): For PSUBU, when overflow, saturate to zero as
 193         actually underflow.
 194
 195 end-sanitize-r5900
 196 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 197
 198 start-sanitize-r5900
 199         * gencode.c (build_instruction): Handle "pext5" according to
 200         version 1.95 of the r5900 ISA.
 201
 202         * gencode.c (build_instruction): Handle "ppac5" according to
 203         version 1.95 of the r5900 ISA.
 204
 205 end-sanitize-r5900
 206         * interp.c (sim_engine_run): Reset the ZERO register to zero
 207         regardless of FEATURE_WARN_ZERO.
 208         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 209
 210 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 211
 212         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 213         (SignalException): For BreakPoints ignore any mode bits and just
 214         save the PC.
 215         (SignalException): Always set the CAUSE register.
 216
 217 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 218
 219         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 220         exception has been taken.
 221
 222         * interp.c: Implement the ERET and mt/f sr instructions.
 223
 224 start-sanitize-r5900
 225 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 226
 227         * gencode.c (build_instruction): For paddu, extract unsigned
 228         sub-fields.
 229
 230         * gencode.c (build_instruction): Saturate padds instead of padd
 231         instructions.
 232
 233 end-sanitize-r5900
 234 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 235
 236         * interp.c (SignalException): Don't bother restarting an
 237         interrupt.
 238
 239 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 240
 241         * interp.c (SignalException): Really take an interrupt.
 242         (interrupt_event): Only deliver interrupts when enabled.
 243
 244 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 245
 246         * interp.c (sim_info): Only print info when verbose.
 247         (sim_info) Use sim_io_printf for output.
 248
 249 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 250
 251         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 252         mips architectures.
 253
 254 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 255
 256         * interp.c (sim_do_command): Check for common commands if a
 257         simulator specific command fails.
 258
 259 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 260
 261         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 262         and simBE when DEBUG is defined.
 263
 264 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 265
 266         * interp.c (interrupt_event): New function.  Pass exception event
 267         onto exception handler.
 268
 269         * configure.in: Check for stdlib.h.
 270         * configure: Regenerate.
 271
 272         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 273         variable declaration.
 274         (build_instruction): Initialize memval1.
 275         (build_instruction): Add UNUSED attribute to byte, bigend,
 276         reverse.
 277         (build_operands): Ditto.
 278
 279         * interp.c: Fix GCC warnings.
 280         (sim_get_quit_code): Delete.
 281
 282         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 283         * Makefile.in: Ditto.
 284         * configure: Re-generate.
 285
 286         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 287
 288 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 289
 290         * interp.c (mips_option_handler): New function parse argumes using
 291         sim-options.
 292         (myname): Replace with STATE_MY_NAME.
 293         (sim_open): Delete check for host endianness - performed by
 294         sim_config.
 295         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 296         (sim_open): Move much of the initialization from here.
 297         (sim_load): To here.  After the image has been loaded and
 298         endianness set.
 299         (sim_open): Move ColdReset from here.
 300         (sim_create_inferior): To here.
 301         (sim_open): Make FP check less dependant on host endianness.
 302
 303         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 304         run.
 305         * interp.c (sim_set_callbacks): Delete.
 306
 307         * interp.c (membank, membank_base, membank_size): Replace with
 308         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 309         (sim_open): Remove call to callback->init. gdb/run do this.
 310
 311         * interp.c: Update
 312
 313         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 314
 315         * interp.c (big_endian_p): Delete, replaced by
 316         current_target_byte_order.
 317
 318 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 319
 320         * interp.c (host_read_long, host_read_word, host_swap_word,
 321         host_swap_long): Delete. Using common sim-endian.
 322         (sim_fetch_register, sim_store_register): Use H2T.
 323         (pipeline_ticks): Delete.  Handled by sim-events.
 324         (sim_info): Update.
 325         (sim_engine_run): Update.
 326
 327 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 328
 329         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 330         reason from here.
 331         (SignalException): To here. Signal using sim_engine_halt.
 332         (sim_stop_reason): Delete, moved to common.
 333
 334 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 335
 336         * interp.c (sim_open): Add callback argument.
 337         (sim_set_callbacks): Delete SIM_DESC argument.
 338         (sim_size): Ditto.
 339
 340 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 341
 342         * Makefile.in (SIM_OBJS): Add common modules.
 343
 344         * interp.c (sim_set_callbacks): Also set SD callback.
 345         (set_endianness, xfer_*, swap_*): Delete.
 346         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 347         Change to functions using sim-endian macros.
 348         (control_c, sim_stop): Delete, use common version.
 349         (simulate): Convert into.
 350         (sim_engine_run): This function.
 351         (sim_resume): Delete.
 352
 353         * interp.c (simulation): New variable - the simulator object.
 354         (sim_kind): Delete global - merged into simulation.
 355         (sim_load): Cleanup.  Move PC assignment from here.
 356         (sim_create_inferior): To here.
 357
 358         * sim-main.h: New file.
 359         * interp.c (sim-main.h): Include.
 360
 361 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 362
 363         * configure: Regenerated to track ../common/aclocal.m4 changes.
 364
 365 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 366
 367         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 368
 369 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 370
 371         * gencode.c (build_instruction): DIV instructions: check
 372         for division by zero and integer overflow before using
 373         host's division operation.
 374
 375 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 376
 377         * Makefile.in (SIM_OBJS): Add sim-load.o.
 378         * interp.c: #include bfd.h.
 379         (target_byte_order): Delete.
 380         (sim_kind, myname, big_endian_p): New static locals.
 381         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 382         after argument parsing.  Recognize -E arg, set endianness accordingly.
 383         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 384         load file into simulator.  Set PC from bfd.
 385         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 386         (set_endianness): Use big_endian_p instead of target_byte_order.
 387
 388 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 389
 390         * interp.c (sim_size): Delete prototype - conflicts with
 391         definition in remote-sim.h.  Correct definition.
 392
 393 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 394
 395         * configure: Regenerated to track ../common/aclocal.m4 changes.
 396         * config.in: Ditto.
 397
 398 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 399
 400         * interp.c (sim_open): New arg `kind'.
 401
 402         * configure: Regenerated to track ../common/aclocal.m4 changes.
 403
 404 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 405
 406         * configure: Regenerated to track ../common/aclocal.m4 changes.
 407
 408 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 409
 410         * interp.c (sim_open): Set optind to 0 before calling getopt.
 411
 412 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 413
 414         * configure: Regenerated to track ../common/aclocal.m4 changes.
 415
 416 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 417
 418         * interp.c : Replace uses of pr_addr with pr_uword64
 419         where the bit length is always 64 independent of SIM_ADDR.
 420         (pr_uword64) : added.
 421
 422 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 423
 424         * configure: Re-generate.
 425
 426 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 427
 428         * configure: Regenerate to track ../common/aclocal.m4 changes.
 429
 430 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 431
 432         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 433         in argv form.
 434         (other sim_*): New SIM_DESC argument.
 435
 436 start-sanitize-r5900
 437 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 438
 439         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 440         Change values to avoid overloading DOUBLEWORD which is tested
 441         for all insns.
 442         * gencode.c: reinstate "offending code".
 443
 444 end-sanitize-r5900
 445 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 446
 447         * interp.c: Fix printing of addresses for non-64-bit targets.
 448         (pr_addr): Add function to print address based on size.
 449 start-sanitize-r5900
 450         * gencode.c: #ifdef out offending code until a permanent fix
 451         can be added.  Code is causing build errors for non-5900 mips targets.
 452 end-sanitize-r5900
 453
 454 start-sanitize-r5900
 455 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 456
 457         * gencode.c (process_instructions): Correct test for ISA dependent
 458         architecture bits in isa field of MIPS_DECODE.
 459
 460 end-sanitize-r5900
 461 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 462
 463         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 464
 465 start-sanitize-r5900
 466 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 467
 468         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 469         PMADDUW.
 470
 471 end-sanitize-r5900
 472 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 473
 474         * gencode.c (build_mips16_operands): Correct computation of base
 475         address for extended PC relative instruction.
 476
 477 start-sanitize-r5900
 478 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 479
 480         * Makefile.in, configure, configure.in, gencode.c,
 481         interp.c, support.h: add r5900.
 482
 483 end-sanitize-r5900
 484 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 485
 486         * interp.c (mips16_entry): Add support for floating point cases.
 487         (SignalException): Pass floating point cases to mips16_entry.
 488         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 489         registers.
 490         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 491         or fmt_word.
 492         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 493         and then set the state to fmt_uninterpreted.
 494         (COP_SW): Temporarily set the state to fmt_word while calling
 495         ValueFPR.
 496
 497 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 498
 499         * gencode.c (build_instruction): The high order may be set in the
 500         comparison flags at any ISA level, not just ISA 4.
 501
 502 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 503
 504         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 505         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 506         * configure.in: sinclude ../common/aclocal.m4.
 507         * configure: Regenerated.
 508
 509 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 510
 511         * configure: Rebuild after change to aclocal.m4.
 512
 513 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 514
 515         * configure configure.in Makefile.in:  Update to new configure
 516         scheme which is more compatible with WinGDB builds.
 517         * configure.in:  Improve comment on how to run autoconf.
 518         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 519         * Makefile.in:  Use autoconf substitution to install common
 520         makefile fragment.
 521
 522 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 523
 524         * gencode.c (build_instruction): Use BigEndianCPU instead of
 525         ByteSwapMem.
 526
 527 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 528
 529         * interp.c (sim_monitor): Make output to stdout visible in
 530         wingdb's I/O log window.
 531
 532 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 533
 534         * support.h: Undo previous change to SIGTRAP
 535         and SIGQUIT values.
 536
 537 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 538
 539         * interp.c (store_word, load_word): New static functions.
 540         (mips16_entry): New static function.
 541         (SignalException): Look for mips16 entry and exit instructions.
 542         (simulate): Use the correct index when setting fpr_state after
 543         doing a pending move.
 544
 545 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 546
 547         * interp.c: Fix byte-swapping code throughout to work on
 548         both little- and big-endian hosts.
 549
 550 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 551
 552         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 553         with gdb/config/i386/xm-windows.h.
 554
 555 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 556
 557         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 558         that messes up arithmetic shifts.
 559
 560 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 561
 562         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 563         SIGTRAP and SIGQUIT for _WIN32.
 564
 565 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 566
 567         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 568         force a 64 bit multiplication.
 569         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 570         destination register is 0, since that is the default mips16 nop
 571         instruction.
 572
 573 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 574
 575         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 576         (build_endian_shift): Don't check proc64.
 577         (build_instruction): Always set memval to uword64.  Cast op2 to
 578         uword64 when shifting it left in memory instructions.  Always use
 579         the same code for stores--don't special case proc64.
 580
 581         * gencode.c (build_mips16_operands): Fix base PC value for PC
 582         relative operands.
 583         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 584         jal instruction.
 585         * interp.c (simJALDELAYSLOT): Define.
 586         (JALDELAYSLOT): Define.
 587         (INDELAYSLOT, INJALDELAYSLOT): Define.
 588         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 589
 590 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 591
 592         * interp.c (sim_open): add flush_cache as a PMON routine
 593         (sim_monitor): handle flush_cache by ignoring it
 594
 595 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 596
 597         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 598         BigEndianMem.
 599         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 600         (BigEndianMem): Rename to ByteSwapMem and change sense.
 601         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 602         BigEndianMem references to !ByteSwapMem.
 603         (set_endianness): New function, with prototype.
 604         (sim_open): Call set_endianness.
 605         (sim_info): Use simBE instead of BigEndianMem.
 606         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 607         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 608         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 609         ifdefs, keeping the prototype declaration.
 610         (swap_word): Rewrite correctly.
 611         (ColdReset): Delete references to CONFIG.  Delete endianness related
 612         code; moved to set_endianness.
 613
 614 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 615
 616         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 617         * interp.c (CHECKHILO): Define away.
 618         (simSIGINT): New macro.
 619         (membank_size): Increase from 1MB to 2MB.
 620         (control_c): New function.
 621         (sim_resume): Rename parameter signal to signal_number.  Add local
 622         variable prev.  Call signal before and after simulate.
 623         (sim_stop_reason): Add simSIGINT support.
 624         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 625         functions always.
 626         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 627         if logfh is NULL.
 628         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 629         a call to sim_warning.
 630
 631 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 632
 633         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 634         16 bit instructions.
 635
 636 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 637
 638         Add support for mips16 (16 bit MIPS implementation):
 639         * gencode.c (inst_type): Add mips16 instruction encoding types.
 640         (GETDATASIZEINSN): Define.
 641         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 642         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 643         mtlo.
 644         (MIPS16_DECODE): New table, for mips16 instructions.
 645         (bitmap_val): New static function.
 646         (struct mips16_op): Define.
 647         (mips16_op_table): New table, for mips16 operands.
 648         (build_mips16_operands): New static function.
 649         (process_instructions): If PC is odd, decode a mips16
 650         instruction.  Break out instruction handling into new
 651         build_instruction function.
 652         (build_instruction): New static function, broken out of
 653         process_instructions.  Check modifiers rather than flags for SHIFT
 654         bit count and m[ft]{hi,lo} direction.
 655         (usage): Pass program name to fprintf.
 656         (main): Remove unused variable this_option_optind.  Change
 657         ``*loptarg++'' to ``loptarg++''.
 658         (my_strtoul): Parenthesize && within ||.
 659         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 660         (simulate): If PC is odd, fetch a 16 bit instruction, and
 661         increment PC by 2 rather than 4.
 662         * configure.in: Add case for mips16*-*-*.
 663         * configure: Rebuild.
 664
 665 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 666
 667         * interp.c: Allow -t to enable tracing in standalone simulator.
 668         Fix garbage output in trace file and error messages.
 669
 670 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 671
 672         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 673         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 674         * configure.in: Simplify using macros in ../common/aclocal.m4.
 675         * configure: Regenerated.
 676         * tconfig.in: New file.
 677
 678 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 679
 680         * interp.c: Fix bugs in 64-bit port.
 681         Use ansi function declarations for msvc compiler.
 682         Initialize and test file pointer in trace code.
 683         Prevent duplicate definition of LAST_EMED_REGNUM.
 684
 685 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 686
 687         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 688
 689 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 690
 691         * interp.c (SignalException): Check for explicit terminating
 692         breakpoint value.
 693         * gencode.c: Pass instruction value through SignalException()
 694         calls for Trap, Breakpoint and Syscall.
 695
 696 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 697
 698         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 699         only used on those hosts that provide it.
 700         * configure.in: Add sqrt() to list of functions to be checked for.
 701         * config.in: Re-generated.
 702         * configure: Re-generated.
 703
 704 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 705
 706         * gencode.c (process_instructions): Call build_endian_shift when
 707         expanding STORE RIGHT, to fix swr.
 708         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 709         clear the high bits.
 710         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 711         Fix float to int conversions to produce signed values.
 712
 713 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 714
 715         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 716         (process_instructions): Correct handling of nor instruction.
 717         Correct shift count for 32 bit shift instructions. Correct sign
 718         extension for arithmetic shifts to not shift the number of bits in
 719         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 720         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 721         Fix madd.
 722         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 723         It's OK to have a mult follow a mult.  What's not OK is to have a
 724         mult follow an mfhi.
 725         (Convert): Comment out incorrect rounding code.
 726
 727 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 728
 729         * interp.c (sim_monitor): Improved monitor printf
 730         simulation. Tidied up simulator warnings, and added "--log" option
 731         for directing warning message output.
 732         * gencode.c: Use sim_warning() rather than WARNING macro.
 733
 734 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 735
 736         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 737         getopt1.o, rather than on gencode.c.  Link objects together.
 738         Don't link against -liberty.
 739         (gencode.o, getopt.o, getopt1.o): New targets.
 740         * gencode.c: Include <ctype.h> and "ansidecl.h".
 741         (AND): Undefine after including "ansidecl.h".
 742         (ULONG_MAX): Define if not defined.
 743         (OP_*): Don't define macros; now defined in opcode/mips.h.
 744         (main): Call my_strtoul rather than strtoul.
 745         (my_strtoul): New static function.
 746
 747 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 748
 749         * gencode.c (process_instructions):  Generate word64 and uword64
 750         instead of `long long' and `unsigned long long' data types.
 751         * interp.c:  #include sysdep.h to get signals, and define default
 752         for SIGBUS.
 753         * (Convert):  Work around for Visual-C++ compiler bug with type
 754         conversion.
 755         * support.h:  Make things compile under Visual-C++ by using
 756         __int64 instead of `long long'.  Change many refs to long long
 757         into word64/uword64 typedefs.
 758
 759 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 760
 761         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 762         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 763         (docdir): Removed.
 764         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 765         (AC_PROG_INSTALL): Added.
 766         (AC_PROG_CC): Moved to before configure.host call.
 767         * configure: Rebuilt.
 768
 769 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 770
 771         * configure.in: Define @SIMCONF@ depending on mips target.
 772         * configure: Rebuild.
 773         * Makefile.in (run): Add @SIMCONF@ to control simulator
 774         construction.
 775         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 776         * interp.c: Remove some debugging, provide more detailed error
 777         messages, update memory accesses to use LOADDRMASK.
 778
 779 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 780
 781         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 782         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 783         stamp-h.
 784         * configure: Rebuild.
 785         * config.in: New file, generated by autoheader.
 786         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 787         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 788         HAVE_ANINT and HAVE_AINT, as appropriate.
 789         * Makefile.in (run): Use @LIBS@ rather than -lm.
 790         (interp.o): Depend upon config.h.
 791         (Makefile): Just rebuild Makefile.
 792         (clean): Remove stamp-h.
 793         (mostlyclean): Make the same as clean, not as distclean.
 794         (config.h, stamp-h): New targets.
 795
 796 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 797
 798         * interp.c (ColdReset): Fix boolean test. Make all simulator
 799         globals static.
 800
 801 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 802
 803         * interp.c (xfer_direct_word, xfer_direct_long,
 804         swap_direct_word, swap_direct_long, xfer_big_word,
 805         xfer_big_long, xfer_little_word, xfer_little_long,
 806         swap_word,swap_long): Added.
 807         * interp.c (ColdReset): Provide function indirection to
 808         host<->simulated_target transfer routines.
 809         * interp.c (sim_store_register, sim_fetch_register): Updated to
 810         make use of indirected transfer routines.
 811
 812 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 813
 814         * gencode.c (process_instructions): Ensure FP ABS instruction
 815         recognised.
 816         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 817         system call support.
 818
 819 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 820
 821         * interp.c (sim_do_command): Complain if callback structure not
 822         initialised.
 823
 824 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 825
 826         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 827         support for Sun hosts.
 828         * Makefile.in (gencode): Ensure the host compiler and libraries
 829         used for cross-hosted build.
 830
 831 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 832
 833         * interp.c, gencode.c: Some more (TODO) tidying.
 834
 835 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 836
 837         * gencode.c, interp.c: Replaced explicit long long references with
 838         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 839         * support.h (SET64LO, SET64HI): Macros added.
 840
 841 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 842
 843         * configure: Regenerate with autoconf 2.7.
 844
 845 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 846
 847         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 848         * support.h: Remove superfluous "1" from #if.
 849         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 850
 851 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 852
 853         * interp.c (StoreFPR): Control UndefinedResult() call on
 854         WARN_RESULT manifest.
 855
 856 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 857
 858         * gencode.c: Tidied instruction decoding, and added FP instruction
 859         support.
 860
 861         * interp.c: Added dineroIII, and BSD profiling support. Also
 862         run-time FP handling.
 863
 864 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 865
 866         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 867         gencode.c, interp.c, support.h: created.