sim/mips/ChangeLog

   1 Thu Oct 16 10:31:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * gencode.c (build_instruction): Use FPR_STATE not fpr_state.
   4
   5 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   6
   7         * gencode.c (build_instruction): For "FPSQRT", output correct
   8         number of arguments to Recip.
   9
  10 Tue Oct 14 17:38:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  11
  12         * Makefile.in (interp.o): Depends on sim-main.h
  13
  14         * interp.c (mips16_entry, ColdReset,dotrace): Add SD argument. Use GPR not registers.
  15
  16         * sim-main.h (sim_cpu): Add registers, register_widths, fpr_state,
  17         ipc, dspc, pending_*, hiaccess, loaccess, state, dsstate fields.
  18         (REGISTERS, REGISTER_WIDTHS, FPR_STATE, IPC, DSPC, PENDING_*,
  19         STATE, DSSTATE): Define
  20         (GPR, FGRIDX, ..): Define.
  21
  22         * interp.c (registers, register_widths, fpr_state, ipc, dspc,
  23         pending_*, hiaccess, loaccess, state, dsstate): Delete globals.
  24         (GPR, FGRIDX, ...): Delete macros.
  25
  26         * interp.c: Update names to match defines from sim-main.h
  27
  28 Tue Oct 14 15:11:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  29
  30         * interp.c (sim_monitor): Add SD argument.
  31         (sim_warning): Delete.  Replace calls with calls to
  32         sim_io_eprintf.
  33         (sim_error): Delete. Replace calls with sim_io_error.
  34         (open_trace, writeout32, writeout16, getnum): Add SD argument.
  35         (mips_set_profile): Rename from sim_set_profile. Add SD argument.
  36         (mips_set_profile_size): Rename from sim_set_profile_size. Add SD
  37         argument.
  38         (mips_size): Rename from sim_size. Add SD argument.
  39
  40         * interp.c (simulator): Delete global variable.
  41         (callback): Delete global variable.
  42         (mips_option_handler, sim_open, sim_write, sim_read,
  43         sim_store_register, sim_fetch_register, sim_info, sim_do_command,
  44         sim_size,sim_monitor): Use sim_io_* not callback->*.
  45         (sim_open): ZALLOC simulator struct.
  46         (PROFILE): Do not define.
  47
  48 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  49
  50         * interp.c (sim_open), support.h: Replace CHECKSIM macro found in
  51         support.h with corresponding code.
  52
  53         * sim-main.h (word64, uword64), support.h: Move definition to
  54         sim-main.h.
  55         (WORD64LO, WORD64HI, SET64LO, SET64HI, WORD64, UWORD64): Ditto.
  56
  57         * support.h: Delete
  58         * Makefile.in: Update dependencies
  59         * interp.c: Do not include.
  60
  61 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  62
  63         * interp.c (address_translation, load_memory, store_memory,
  64         cache_op): Rename to from AddressTranslation et.al., make global,
  65         add SD argument
  66
  67         * sim-main.h (AddressTranslation, LoadMemory, StoreMemory,
  68         CacheOp): Define.
  69
  70         * interp.c (SignalException): Rename to signal_exception, make
  71         global.
  72
  73         * interp.c (Interrupt, ...): Move definitions to sim-main.h.
  74
  75         * sim-main.h (SignalException, SignalExceptionInterrupt,
  76         SignalExceptionInstructionFetch, SignalExceptionAddressStore,
  77         SignalExceptionAddressLoad, SignalExceptionSimulatorFault,
  78         SignalExceptionIntegerOverflow, SignalExceptionCoProcessorUnusable):
  79         Define.
  80
  81         * interp.c, support.h: Use.
  82
  83 Tue Oct 14 13:19:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  84
  85         * interp.c (ValueFPR, StoreFPR), sim-main.h: Make global, rename
  86         to value_fpr / store_fpr. Add SD argument.
  87         (NaN, Infinity, Less, Equal, AbsoluteValue, Negate, Add, Sub,
  88         Multiply, Divide, Recip, SquareRoot, Convert): Make global.
  89
  90         * sim-main.h (ValueFPR, StoreFPR): Define.
  91
  92 Tue Oct 14 13:06:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  93
  94         * interp.c (sim_engine_run): Check consistency between configure
  95         WITH_TARGET_WORD_BITSIZE and WITH_FLOATING_POINT and gensim GPRLEN
  96         and HASFPU.
  97
  98         * configure.in (mips_bitsize): Configure WITH_TARGET_WORD_BITSIZE.
  99         (mips_fpu): Configure WITH_FLOATING_POINT.
 100         (mips_endian): Configure WITH_TARGET_ENDIAN.
 101         * configure: Update.
 102
 103 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 104
 105         * configure: Regenerated to track ../common/aclocal.m4 changes.
 106
 107 start-sanitize-r5900
 108 Mon Aug 25 19:11:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 109
 110         * interp.c (MAX_REG): Allow up-to 128 registers.
 111         (LO1, HI1): Define value that matches REGISTER_NAMES in gdb.
 112         (REGISTER_SA): Ditto.
 113         (sim_open): Initialize register_widths for r5900 specific
 114         registers.
 115         (sim_fetch_register, sim_store_register): Check for request of
 116         r5900 specific SA register.  Check for request for hi 64 bits of
 117         r5900 specific registers.
 118
 119 end-sanitize-r5900
 120 Mon Sep 29 14:45:00 1997  Bob Manson  <manson@charmed.cygnus.com>
 121
 122         * configure: Regenerated.
 123
 124 Fri Sep 26 12:48:18 1997  Mark Alexander  <marka@cygnus.com>
 125
 126         * interp.c: Allow Debug, DEPC, and EPC registers to be examined in GDB.
 127
 128 Thu Sep 25 11:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 129
 130         * gencode.c (print_igen_insn_models): Assume certain architectures
 131         include all mips* instructions.
 132         (print_igen_insn_format): Use data_size==-1 as marker for MIPS16
 133         instruction.
 134
 135         * Makefile.in (tmp.igen): Add target. Generate igen input from
 136         gencode file.
 137
 138         * gencode.c (FEATURE_IGEN): Define.
 139         (main): Add --igen option.  Generate output in igen format.
 140         (process_instructions): Format output according to igen option.
 141         (print_igen_insn_format): New function.
 142         (print_igen_insn_models): New function.
 143         (process_instructions): Only issue warnings and ignore
 144         instructions when no FEATURE_IGEN.
 145
 146 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 147
 148         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
 149         MIPS targets.
 150
 151 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 152
 153         * configure: Regenerated to track ../common/aclocal.m4 changes.
 154
 155 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 156
 157         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
 158         SIM_RESERVED_BITS): Delete, moved to common.
 159         (SIM_EXTRA_CFLAGS): Update.
 160
 161 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 162
 163         * configure.in: Configure non-strict memory alignment.
 164         * configure: Regenerated to track ../common/aclocal.m4 changes.
 165
 166 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 167
 168         * configure: Regenerated to track ../common/aclocal.m4 changes.
 169
 170 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
 171
 172         * gencode.c (SDBBP,DERET): Added (3900) insns.
 173         (RFE): Turn on for 3900.
 174         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
 175         (dsstate): Made global.
 176         (SUBTARGET_R3900): Added.
 177         (CANCELDELAYSLOT): New.
 178         (SignalException): Ignore SystemCall rather than ignore and
 179         terminate.  Add DebugBreakPoint handling.
 180         (decode_coproc): New insns RFE, DERET; and new registers Debug
 181         and DEPC protected by SUBTARGET_R3900.
 182         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
 183         bits explicitly.
 184         * Makefile.in,configure.in: Add mips subtarget option.
 185         * configure: Update.
 186
 187 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
 188
 189         * gencode.c: Add r3900 (tx39).
 190
 191 start-sanitize-tx19
 192         * gencode.c: Fix some configuration problems by improving
 193         the relationship between tx19 and tx39.
 194 end-sanitize-tx19
 195
 196 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
 197
 198         * gencode.c (build_instruction): Don't need to subtract 4 for
 199         JALR, just 2.
 200
 201 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
 202
 203         * interp.c: Correct some HASFPU problems.
 204
 205 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 206
 207         * configure: Regenerated to track ../common/aclocal.m4 changes.
 208
 209 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 210
 211         * interp.c (mips_options): Fix samples option short form, should
 212         be `x'.
 213
 214 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 215
 216         * interp.c (sim_info): Enable info code.  Was just returning.
 217
 218 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 219
 220         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
 221         MFC0.
 222
 223 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 224
 225         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
 226         constants.
 227         (build_instruction): Ditto for LL.
 228
 229 start-sanitize-tx19
 230 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
 231
 232         * mips/configure.in, mips/gencode: Add tx19/r1900.
 233
 234 end-sanitize-tx19
 235 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 236
 237         * configure: Regenerated to track ../common/aclocal.m4 changes.
 238
 239 start-sanitize-r5900
 240 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 241
 242         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
 243         for overflow due to ABS of MININT, set result to MAXINT.
 244         (build_instruction): For "psrlvw", signextend bit 31.
 245
 246 end-sanitize-r5900
 247 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 248
 249         * configure: Regenerated to track ../common/aclocal.m4 changes.
 250         * config.in: Ditto.
 251
 252 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 253
 254         * interp.c (sim_open): Add call to sim_analyze_program, update
 255         call to sim_config.
 256
 257 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 258
 259         * interp.c (sim_kill): Delete.
 260         (sim_create_inferior): Add ABFD argument. Set PC from same.
 261         (sim_load): Move code initializing trap handlers from here.
 262         (sim_open): To here.
 263         (sim_load): Delete, use sim-hload.c.
 264
 265         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 266
 267 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 268
 269         * configure: Regenerated to track ../common/aclocal.m4 changes.
 270         * config.in: Ditto.
 271
 272 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 273
 274         * interp.c (sim_open): Add ABFD argument.
 275         (sim_load): Move call to sim_config from here.
 276         (sim_open): To here.  Check return status.
 277
 278 start-sanitize-r5900
 279         * gencode.c (build_instruction): Do not define x8000000000000000,
 280         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 281
 282 end-sanitize-r5900
 283 start-sanitize-r5900
 284 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 285
 286         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 287         "pdivuw" check for overflow due to signed divide by -1.
 288
 289 end-sanitize-r5900
 290 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 291
 292         * gencode.c (build_instruction): Two arg MADD should
 293         not assign result to $0.
 294
 295 start-sanitize-r5900
 296 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 297
 298         * gencode.c (build_instruction): For "ppac5" use unsigned
 299         arrithmetic so that the sign bit doesn't smear when right shifted.
 300         (build_instruction): For "pdiv" perform sign extension when
 301         storing results in HI and LO.
 302         (build_instructions): For "pdiv" and "pdivbw" check for
 303         divide-by-zero.
 304         (build_instruction): For "pmfhl.slw" update hi part of dest
 305         register as well as low part.
 306         (build_instruction): For "pmfhl" portably handle long long values.
 307         (build_instruction): For "pmfhl.sh" correctly negative values.
 308         Store half words 2 and three in the correct place.
 309         (build_instruction): For "psllvw", sign extend value after shift.
 310
 311 end-sanitize-r5900
 312 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 313
 314         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 315         * sim/mips/configure.in: Regenerate.
 316
 317 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 318
 319         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 320         signed8, unsigned8 et.al. types.
 321
 322 start-sanitize-r5900
 323         * gencode.c (build_instruction): For PMULTU* do not sign extend
 324         registers.  Make generated code easier to debug.
 325
 326 end-sanitize-r5900
 327         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 328         hosts when selecting subreg.
 329
 330 start-sanitize-r5900
 331 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 332
 333         * gencode.c (type_for_data_len): For 32bit operations concerned
 334         with overflow, perform op using 64bits.
 335         (build_instruction): For PADD, always compute operation using type
 336         returned by type_for_data_len.
 337         (build_instruction): For PSUBU, when overflow, saturate to zero as
 338         actually underflow.
 339
 340 end-sanitize-r5900
 341 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 342
 343 start-sanitize-r5900
 344         * gencode.c (build_instruction): Handle "pext5" according to
 345         version 1.95 of the r5900 ISA.
 346
 347         * gencode.c (build_instruction): Handle "ppac5" according to
 348         version 1.95 of the r5900 ISA.
 349
 350 end-sanitize-r5900
 351         * interp.c (sim_engine_run): Reset the ZERO register to zero
 352         regardless of FEATURE_WARN_ZERO.
 353         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 354
 355 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 356
 357         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 358         (SignalException): For BreakPoints ignore any mode bits and just
 359         save the PC.
 360         (SignalException): Always set the CAUSE register.
 361
 362 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 363
 364         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 365         exception has been taken.
 366
 367         * interp.c: Implement the ERET and mt/f sr instructions.
 368
 369 start-sanitize-r5900
 370 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 371
 372         * gencode.c (build_instruction): For paddu, extract unsigned
 373         sub-fields.
 374
 375         * gencode.c (build_instruction): Saturate padds instead of padd
 376         instructions.
 377
 378 end-sanitize-r5900
 379 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 380
 381         * interp.c (SignalException): Don't bother restarting an
 382         interrupt.
 383
 384 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 385
 386         * interp.c (SignalException): Really take an interrupt.
 387         (interrupt_event): Only deliver interrupts when enabled.
 388
 389 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 390
 391         * interp.c (sim_info): Only print info when verbose.
 392         (sim_info) Use sim_io_printf for output.
 393
 394 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 395
 396         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 397         mips architectures.
 398
 399 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 400
 401         * interp.c (sim_do_command): Check for common commands if a
 402         simulator specific command fails.
 403
 404 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 405
 406         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 407         and simBE when DEBUG is defined.
 408
 409 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 410
 411         * interp.c (interrupt_event): New function.  Pass exception event
 412         onto exception handler.
 413
 414         * configure.in: Check for stdlib.h.
 415         * configure: Regenerate.
 416
 417         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 418         variable declaration.
 419         (build_instruction): Initialize memval1.
 420         (build_instruction): Add UNUSED attribute to byte, bigend,
 421         reverse.
 422         (build_operands): Ditto.
 423
 424         * interp.c: Fix GCC warnings.
 425         (sim_get_quit_code): Delete.
 426
 427         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 428         * Makefile.in: Ditto.
 429         * configure: Re-generate.
 430
 431         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 432
 433 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 434
 435         * interp.c (mips_option_handler): New function parse argumes using
 436         sim-options.
 437         (myname): Replace with STATE_MY_NAME.
 438         (sim_open): Delete check for host endianness - performed by
 439         sim_config.
 440         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 441         (sim_open): Move much of the initialization from here.
 442         (sim_load): To here.  After the image has been loaded and
 443         endianness set.
 444         (sim_open): Move ColdReset from here.
 445         (sim_create_inferior): To here.
 446         (sim_open): Make FP check less dependant on host endianness.
 447
 448         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 449         run.
 450         * interp.c (sim_set_callbacks): Delete.
 451
 452         * interp.c (membank, membank_base, membank_size): Replace with
 453         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 454         (sim_open): Remove call to callback->init. gdb/run do this.
 455
 456         * interp.c: Update
 457
 458         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 459
 460         * interp.c (big_endian_p): Delete, replaced by
 461         current_target_byte_order.
 462
 463 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 464
 465         * interp.c (host_read_long, host_read_word, host_swap_word,
 466         host_swap_long): Delete. Using common sim-endian.
 467         (sim_fetch_register, sim_store_register): Use H2T.
 468         (pipeline_ticks): Delete.  Handled by sim-events.
 469         (sim_info): Update.
 470         (sim_engine_run): Update.
 471
 472 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 473
 474         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 475         reason from here.
 476         (SignalException): To here. Signal using sim_engine_halt.
 477         (sim_stop_reason): Delete, moved to common.
 478
 479 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 480
 481         * interp.c (sim_open): Add callback argument.
 482         (sim_set_callbacks): Delete SIM_DESC argument.
 483         (sim_size): Ditto.
 484
 485 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 486
 487         * Makefile.in (SIM_OBJS): Add common modules.
 488
 489         * interp.c (sim_set_callbacks): Also set SD callback.
 490         (set_endianness, xfer_*, swap_*): Delete.
 491         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 492         Change to functions using sim-endian macros.
 493         (control_c, sim_stop): Delete, use common version.
 494         (simulate): Convert into.
 495         (sim_engine_run): This function.
 496         (sim_resume): Delete.
 497
 498         * interp.c (simulation): New variable - the simulator object.
 499         (sim_kind): Delete global - merged into simulation.
 500         (sim_load): Cleanup.  Move PC assignment from here.
 501         (sim_create_inferior): To here.
 502
 503         * sim-main.h: New file.
 504         * interp.c (sim-main.h): Include.
 505
 506 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 507
 508         * configure: Regenerated to track ../common/aclocal.m4 changes.
 509
 510 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 511
 512         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 513
 514 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 515
 516         * gencode.c (build_instruction): DIV instructions: check
 517         for division by zero and integer overflow before using
 518         host's division operation.
 519
 520 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 521
 522         * Makefile.in (SIM_OBJS): Add sim-load.o.
 523         * interp.c: #include bfd.h.
 524         (target_byte_order): Delete.
 525         (sim_kind, myname, big_endian_p): New static locals.
 526         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 527         after argument parsing.  Recognize -E arg, set endianness accordingly.
 528         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 529         load file into simulator.  Set PC from bfd.
 530         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 531         (set_endianness): Use big_endian_p instead of target_byte_order.
 532
 533 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 534
 535         * interp.c (sim_size): Delete prototype - conflicts with
 536         definition in remote-sim.h.  Correct definition.
 537
 538 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 539
 540         * configure: Regenerated to track ../common/aclocal.m4 changes.
 541         * config.in: Ditto.
 542
 543 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 544
 545         * interp.c (sim_open): New arg `kind'.
 546
 547         * configure: Regenerated to track ../common/aclocal.m4 changes.
 548
 549 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 550
 551         * configure: Regenerated to track ../common/aclocal.m4 changes.
 552
 553 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 554
 555         * interp.c (sim_open): Set optind to 0 before calling getopt.
 556
 557 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 558
 559         * configure: Regenerated to track ../common/aclocal.m4 changes.
 560
 561 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 562
 563         * interp.c : Replace uses of pr_addr with pr_uword64
 564         where the bit length is always 64 independent of SIM_ADDR.
 565         (pr_uword64) : added.
 566
 567 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 568
 569         * configure: Re-generate.
 570
 571 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 572
 573         * configure: Regenerate to track ../common/aclocal.m4 changes.
 574
 575 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 576
 577         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 578         in argv form.
 579         (other sim_*): New SIM_DESC argument.
 580
 581 start-sanitize-r5900
 582 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 583
 584         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 585         Change values to avoid overloading DOUBLEWORD which is tested
 586         for all insns.
 587         * gencode.c: reinstate "offending code".
 588
 589 end-sanitize-r5900
 590 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 591
 592         * interp.c: Fix printing of addresses for non-64-bit targets.
 593         (pr_addr): Add function to print address based on size.
 594 start-sanitize-r5900
 595         * gencode.c: #ifdef out offending code until a permanent fix
 596         can be added.  Code is causing build errors for non-5900 mips targets.
 597 end-sanitize-r5900
 598
 599 start-sanitize-r5900
 600 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 601
 602         * gencode.c (process_instructions): Correct test for ISA dependent
 603         architecture bits in isa field of MIPS_DECODE.
 604
 605 end-sanitize-r5900
 606 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 607
 608         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 609
 610 start-sanitize-r5900
 611 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 612
 613         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 614         PMADDUW.
 615
 616 end-sanitize-r5900
 617 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 618
 619         * gencode.c (build_mips16_operands): Correct computation of base
 620         address for extended PC relative instruction.
 621
 622 start-sanitize-r5900
 623 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 624
 625         * Makefile.in, configure, configure.in, gencode.c,
 626         interp.c, support.h: add r5900.
 627
 628 end-sanitize-r5900
 629 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 630
 631         * interp.c (mips16_entry): Add support for floating point cases.
 632         (SignalException): Pass floating point cases to mips16_entry.
 633         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 634         registers.
 635         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 636         or fmt_word.
 637         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 638         and then set the state to fmt_uninterpreted.
 639         (COP_SW): Temporarily set the state to fmt_word while calling
 640         ValueFPR.
 641
 642 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 643
 644         * gencode.c (build_instruction): The high order may be set in the
 645         comparison flags at any ISA level, not just ISA 4.
 646
 647 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 648
 649         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 650         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 651         * configure.in: sinclude ../common/aclocal.m4.
 652         * configure: Regenerated.
 653
 654 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 655
 656         * configure: Rebuild after change to aclocal.m4.
 657
 658 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 659
 660         * configure configure.in Makefile.in:  Update to new configure
 661         scheme which is more compatible with WinGDB builds.
 662         * configure.in:  Improve comment on how to run autoconf.
 663         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 664         * Makefile.in:  Use autoconf substitution to install common
 665         makefile fragment.
 666
 667 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 668
 669         * gencode.c (build_instruction): Use BigEndianCPU instead of
 670         ByteSwapMem.
 671
 672 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 673
 674         * interp.c (sim_monitor): Make output to stdout visible in
 675         wingdb's I/O log window.
 676
 677 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 678
 679         * support.h: Undo previous change to SIGTRAP
 680         and SIGQUIT values.
 681
 682 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 683
 684         * interp.c (store_word, load_word): New static functions.
 685         (mips16_entry): New static function.
 686         (SignalException): Look for mips16 entry and exit instructions.
 687         (simulate): Use the correct index when setting fpr_state after
 688         doing a pending move.
 689
 690 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 691
 692         * interp.c: Fix byte-swapping code throughout to work on
 693         both little- and big-endian hosts.
 694
 695 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 696
 697         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 698         with gdb/config/i386/xm-windows.h.
 699
 700 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 701
 702         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 703         that messes up arithmetic shifts.
 704
 705 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 706
 707         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 708         SIGTRAP and SIGQUIT for _WIN32.
 709
 710 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 711
 712         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 713         force a 64 bit multiplication.
 714         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 715         destination register is 0, since that is the default mips16 nop
 716         instruction.
 717
 718 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 719
 720         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 721         (build_endian_shift): Don't check proc64.
 722         (build_instruction): Always set memval to uword64.  Cast op2 to
 723         uword64 when shifting it left in memory instructions.  Always use
 724         the same code for stores--don't special case proc64.
 725
 726         * gencode.c (build_mips16_operands): Fix base PC value for PC
 727         relative operands.
 728         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 729         jal instruction.
 730         * interp.c (simJALDELAYSLOT): Define.
 731         (JALDELAYSLOT): Define.
 732         (INDELAYSLOT, INJALDELAYSLOT): Define.
 733         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 734
 735 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 736
 737         * interp.c (sim_open): add flush_cache as a PMON routine
 738         (sim_monitor): handle flush_cache by ignoring it
 739
 740 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 741
 742         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 743         BigEndianMem.
 744         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 745         (BigEndianMem): Rename to ByteSwapMem and change sense.
 746         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 747         BigEndianMem references to !ByteSwapMem.
 748         (set_endianness): New function, with prototype.
 749         (sim_open): Call set_endianness.
 750         (sim_info): Use simBE instead of BigEndianMem.
 751         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 752         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 753         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 754         ifdefs, keeping the prototype declaration.
 755         (swap_word): Rewrite correctly.
 756         (ColdReset): Delete references to CONFIG.  Delete endianness related
 757         code; moved to set_endianness.
 758
 759 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 760
 761         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 762         * interp.c (CHECKHILO): Define away.
 763         (simSIGINT): New macro.
 764         (membank_size): Increase from 1MB to 2MB.
 765         (control_c): New function.
 766         (sim_resume): Rename parameter signal to signal_number.  Add local
 767         variable prev.  Call signal before and after simulate.
 768         (sim_stop_reason): Add simSIGINT support.
 769         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
 770         functions always.
 771         (sim_warning): Delete call to SignalException.  Do call printf_filtered
 772         if logfh is NULL.
 773         (AddressTranslation): Add #ifdef DEBUG around debugging message and
 774         a call to sim_warning.
 775
 776 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
 777
 778         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
 779         16 bit instructions.
 780
 781 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 782
 783         Add support for mips16 (16 bit MIPS implementation):
 784         * gencode.c (inst_type): Add mips16 instruction encoding types.
 785         (GETDATASIZEINSN): Define.
 786         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
 787         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
 788         mtlo.
 789         (MIPS16_DECODE): New table, for mips16 instructions.
 790         (bitmap_val): New static function.
 791         (struct mips16_op): Define.
 792         (mips16_op_table): New table, for mips16 operands.
 793         (build_mips16_operands): New static function.
 794         (process_instructions): If PC is odd, decode a mips16
 795         instruction.  Break out instruction handling into new
 796         build_instruction function.
 797         (build_instruction): New static function, broken out of
 798         process_instructions.  Check modifiers rather than flags for SHIFT
 799         bit count and m[ft]{hi,lo} direction.
 800         (usage): Pass program name to fprintf.
 801         (main): Remove unused variable this_option_optind.  Change
 802         ``*loptarg++'' to ``loptarg++''.
 803         (my_strtoul): Parenthesize && within ||.
 804         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
 805         (simulate): If PC is odd, fetch a 16 bit instruction, and
 806         increment PC by 2 rather than 4.
 807         * configure.in: Add case for mips16*-*-*.
 808         * configure: Rebuild.
 809
 810 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
 811
 812         * interp.c: Allow -t to enable tracing in standalone simulator.
 813         Fix garbage output in trace file and error messages.
 814
 815 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 816
 817         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 818         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 819         * configure.in: Simplify using macros in ../common/aclocal.m4.
 820         * configure: Regenerated.
 821         * tconfig.in: New file.
 822
 823 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 824
 825         * interp.c: Fix bugs in 64-bit port.
 826         Use ansi function declarations for msvc compiler.
 827         Initialize and test file pointer in trace code.
 828         Prevent duplicate definition of LAST_EMED_REGNUM.
 829
 830 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 831
 832         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 833
 834 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 835
 836         * interp.c (SignalException): Check for explicit terminating
 837         breakpoint value.
 838         * gencode.c: Pass instruction value through SignalException()
 839         calls for Trap, Breakpoint and Syscall.
 840
 841 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 842
 843         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 844         only used on those hosts that provide it.
 845         * configure.in: Add sqrt() to list of functions to be checked for.
 846         * config.in: Re-generated.
 847         * configure: Re-generated.
 848
 849 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 850
 851         * gencode.c (process_instructions): Call build_endian_shift when
 852         expanding STORE RIGHT, to fix swr.
 853         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 854         clear the high bits.
 855         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 856         Fix float to int conversions to produce signed values.
 857
 858 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 859
 860         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 861         (process_instructions): Correct handling of nor instruction.
 862         Correct shift count for 32 bit shift instructions. Correct sign
 863         extension for arithmetic shifts to not shift the number of bits in
 864         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 865         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 866         Fix madd.
 867         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 868         It's OK to have a mult follow a mult.  What's not OK is to have a
 869         mult follow an mfhi.
 870         (Convert): Comment out incorrect rounding code.
 871
 872 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 873
 874         * interp.c (sim_monitor): Improved monitor printf
 875         simulation. Tidied up simulator warnings, and added "--log" option
 876         for directing warning message output.
 877         * gencode.c: Use sim_warning() rather than WARNING macro.
 878
 879 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 880
 881         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 882         getopt1.o, rather than on gencode.c.  Link objects together.
 883         Don't link against -liberty.
 884         (gencode.o, getopt.o, getopt1.o): New targets.
 885         * gencode.c: Include <ctype.h> and "ansidecl.h".
 886         (AND): Undefine after including "ansidecl.h".
 887         (ULONG_MAX): Define if not defined.
 888         (OP_*): Don't define macros; now defined in opcode/mips.h.
 889         (main): Call my_strtoul rather than strtoul.
 890         (my_strtoul): New static function.
 891
 892 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 893
 894         * gencode.c (process_instructions):  Generate word64 and uword64
 895         instead of `long long' and `unsigned long long' data types.
 896         * interp.c:  #include sysdep.h to get signals, and define default
 897         for SIGBUS.
 898         * (Convert):  Work around for Visual-C++ compiler bug with type
 899         conversion.
 900         * support.h:  Make things compile under Visual-C++ by using
 901         __int64 instead of `long long'.  Change many refs to long long
 902         into word64/uword64 typedefs.
 903
 904 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 905
 906         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 907         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 908         (docdir): Removed.
 909         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 910         (AC_PROG_INSTALL): Added.
 911         (AC_PROG_CC): Moved to before configure.host call.
 912         * configure: Rebuilt.
 913
 914 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 915
 916         * configure.in: Define @SIMCONF@ depending on mips target.
 917         * configure: Rebuild.
 918         * Makefile.in (run): Add @SIMCONF@ to control simulator
 919         construction.
 920         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 921         * interp.c: Remove some debugging, provide more detailed error
 922         messages, update memory accesses to use LOADDRMASK.
 923
 924 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 925
 926         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 927         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 928         stamp-h.
 929         * configure: Rebuild.
 930         * config.in: New file, generated by autoheader.
 931         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 932         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 933         HAVE_ANINT and HAVE_AINT, as appropriate.
 934         * Makefile.in (run): Use @LIBS@ rather than -lm.
 935         (interp.o): Depend upon config.h.
 936         (Makefile): Just rebuild Makefile.
 937         (clean): Remove stamp-h.
 938         (mostlyclean): Make the same as clean, not as distclean.
 939         (config.h, stamp-h): New targets.
 940
 941 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 942
 943         * interp.c (ColdReset): Fix boolean test. Make all simulator
 944         globals static.
 945
 946 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 947
 948         * interp.c (xfer_direct_word, xfer_direct_long,
 949         swap_direct_word, swap_direct_long, xfer_big_word,
 950         xfer_big_long, xfer_little_word, xfer_little_long,
 951         swap_word,swap_long): Added.
 952         * interp.c (ColdReset): Provide function indirection to
 953         host<->simulated_target transfer routines.
 954         * interp.c (sim_store_register, sim_fetch_register): Updated to
 955         make use of indirected transfer routines.
 956
 957 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 958
 959         * gencode.c (process_instructions): Ensure FP ABS instruction
 960         recognised.
 961         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 962         system call support.
 963
 964 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 965
 966         * interp.c (sim_do_command): Complain if callback structure not
 967         initialised.
 968
 969 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 970
 971         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 972         support for Sun hosts.
 973         * Makefile.in (gencode): Ensure the host compiler and libraries
 974         used for cross-hosted build.
 975
 976 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 977
 978         * interp.c, gencode.c: Some more (TODO) tidying.
 979
 980 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 981
 982         * gencode.c, interp.c: Replaced explicit long long references with
 983         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 984         * support.h (SET64LO, SET64HI): Macros added.
 985
 986 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 987
 988         * configure: Regenerate with autoconf 2.7.
 989
 990 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 991
 992         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 993         * support.h: Remove superfluous "1" from #if.
 994         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 995
 996 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 997
 998         * interp.c (StoreFPR): Control UndefinedResult() call on
 999         WARN_RESULT manifest.
1000
1001 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
1002
1003         * gencode.c: Tidied instruction decoding, and added FP instruction
1004         support.
1005
1006         * interp.c: Added dineroIII, and BSD profiling support. Also
1007         run-time FP handling.
1008
1009 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
1010
1011         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
1012         gencode.c, interp.c, support.h: created.