sim/mips/ChangeLog

   1 Wed Nov  5 12:19:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * sim-main.h (MAX_INSNS, INSN_NAME): Define.
   4
   5         * interp.c (load_memory, store_memory): Delete parameter RAW.
   6         (sim_read, sim_write): Use sim_core_{read,write}_buffer directly
   7         bypassing {load,store}_memory.
   8
   9         * sim-main.h (ByteSwapMem): Delete definition.
  10
  11         * Makefile.in (SIM_OBJS): Add sim-memopt module.
  12
  13         * interp.c (sim_do_command, sim_commands): Delete mips specific
  14         commands.  Handled by module sim-options.
  15
  16         * sim-main.h (SIM_HAVE_FLATMEM): Undefine, use sim-core.o module.
  17         (WITH_MODULO_MEMORY): Define.
  18
  19         * interp.c (sim_info): Delete code printing memory size.
  20
  21         * interp.c (mips_size): Nee sim_size, delete function.
  22         (power2): Delete.
  23         (monitor, monitor_base, monitor_size): Delete global variables.
  24         (sim_open, sim_close): Delete code creating monitor and other
  25         memory regions.  Use sim-memopts module, via sim_do_commandf, to
  26         manage memory regions.
  27         (load_memory, store_memory): Use sim-core for memory model.
  28
  29         * interp.c (address_translation): Delete all memory map code
  30         except line forcing 32 bit addresses.
  31
  32 Wed Nov  5 11:21:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  33
  34         * sim-main.h (WITH_TRACE): Delete definition.  Enables common
  35         trace options.
  36
  37         * interp.c (logfh, logfile): Delete globals.
  38         (sim_open, sim_close): Delete code opening & closing log file.
  39         (mips_option_handler): Delete -l and -n options.
  40         (OPTION mips_options): Ditto.
  41
  42         * interp.c (OPTION mips_options): Rename option trace to dinero.
  43         (mips_option_handler): Update.
  44
  45 Wed Nov  5 09:35:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  46
  47         * interp.c (fetch_str): New function.
  48         (sim_monitor): Rewrite using sim_read & sim_write.
  49         (sim_open): Check magic number.
  50         (sim_open): Write monitor vectors into memory using sim_write.
  51         (MONITOR_BASE, MONITOR_SIZE, MEM_SIZE): Define.
  52         (sim_read, sim_write): Simplify - transfer data one byte at a
  53         time.
  54         (load_memory, store_memory): Clarify meaning of parameter RAW.
  55
  56         * sim-main.h (isHOST): Defete definition.
  57         (isTARGET): Mark as depreciated.
  58         (address_translation): Delete parameter HOST.
  59
  60         * interp.c (address_translation): Delete parameter HOST.
  61
  62 start-sanitize-tx49
  63 Wed Oct 29 14:21:32 1997  Gavin Koch  <gavin@cygnus.com>
  64
  65         * gencode.c: Add tx49 configury and insns.
  66         * configure.in: Add tx49 configury.
  67         * configure: Update.
  68
  69 end-sanitize-tx49
  70 Wed Oct 29 11:13:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  71
  72         * mips.igen:
  73
  74         * Makefile.in (IGEN_INCLUDE): Files included by mips.igen.
  75         (tmp-igen, tmp-m16): Depend on IGEN_INCLUDE.
  76
  77 Tue Oct 28 11:06:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  78
  79         * mips.igen: Add model filter field to records.
  80
  81 Mon Oct 27 17:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  82
  83         * Makefile.in (SIM_NO_CFLAGS): Define.  Define WITH_IGEN=0.
  84
  85         interp.c (sim_engine_run): Do not compile function sim_engine_run
  86         when WITH_IGEN == 1.
  87
  88         * configure.in (sim_igen_flags, sim_m16_flags): Set according to
  89         target architecture.
  90
  91         Makefile.in (tmp-igen, tmp-m16): Drop -F and -M options to
  92         igen. Replace with configuration variables sim_igen_flags /
  93         sim_m16_flags.
  94
  95         end-sanitize-v5900
  96         * r5900.igen: New file. Copy v5900 insns here.
  97         start-sanitize-r5900
  98         end-sanitize-v5400
  99         * vr5400.igen: New file.
 100         start-sanitize-vr5400
 101         * m16.igen: New file.  Copy mips16 insns here.
 102         * mips.igen: From here.
 103
 104 Mon Oct 27 13:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 105
 106         start-sanitize-vr5400
 107         * mips.igen: Tag all mipsIV instructions with vr5400 model.
 108
 109         * configure.in: Add mips64vr5400 target.
 110         * configure: Re-generate.
 111
 112         end-sanitize-vr5400
 113         * Makefile.in (SIM_NO_OBJ): Define, move SIM_M16_OBJ, SIM_IGEN_OBJ
 114         to top.
 115         (tmp-igen, tmp-m16): Pass -I srcdir to igen.
 116
 117 Sat Oct 25 16:51:40 1997  Gavin Koch  <gavin@cygnus.com>
 118
 119         * gencode.c (build_instruction): Follow sim_write's lead in using
 120         BigEndianMem instead of !ByteSwapMem.
 121
 122 Fri Oct 24 17:41:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 123
 124         * configure.in (sim_gen): Dependent on target, select type of
 125         generator.  Always select old style generator.
 126
 127         configure: Re-generate.
 128
 129         Makefile.in (tmp-igen, tmp-m16, clean-m16, clean-igen): New
 130         targets.
 131         (SIM_M16_CFLAGS, SIM_M16_ALL, SIM_M16_OBJ, BUILT_SRC_FROM_M16,
 132         SIM_IGEN_CFLAGS, SIM_IGEN_ALL, SIM_IGEN_OBJ, BUILT_SRC_FROM_IGEN,
 133         IGEN_TRACE, IGEN_INSN, IGEN_DC): Define
 134         (SIM_EXTRA_CFLAGS, SIM_EXTRA_ALL, SIM_OBJS): Add member
 135         SIM_@sim_gen@_*, set by autoconf.
 136
 137 Wed Oct 22 12:52:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 138
 139         * sim-main.h (NULLIFY_NEXT_INSTRUCTION, DELAY_SLOT): Define.
 140
 141         * interp.c (ColdReset): Remove #ifdef HASFPU, check
 142         CURRENT_FLOATING_POINT instead.
 143
 144         * interp.c (ifetch32): New function. Fetch 32 bit instruction.
 145         (address_translation): Raise exception InstructionFetch when
 146         translation fails and isINSTRUCTION.
 147
 148         * interp.c (sim_open, sim_write, sim_monitor, store_word,
 149         sim_engine_run): Change type of of vaddr and paddr to
 150         address_word.
 151         (address_translation, prefetch, load_memory, store_memory,
 152         cache_op): Change type of vAddr and pAddr to address_word.
 153
 154         * gencode.c (build_instruction): Change type of vaddr and paddr to
 155         address_word.
 156
 157 Mon Oct 20 15:29:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 158
 159         * sim-main.h (ALU64_END, ALU32_END): Use ALU*_OVERFLOW_RESULT
 160         macro to obtain result of ALU op.
 161
 162 Tue Oct 21 17:39:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 163
 164         * interp.c (sim_info): Call profile_print.
 165
 166 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 167
 168         * Makefile.in (SIM_OBJS): Add sim-profile.o module.
 169
 170         * sim-main.h (WITH_PROFILE): Do not define, defined in
 171         common/sim-config.h.  Use sim-profile module.
 172         (simPROFILE): Delete defintion.
 173
 174         * interp.c (PROFILE): Delete definition.
 175         (mips_option_handler): Delete 'p', 'y' and 'x' profile options.
 176         (sim_close): Delete code writing profile histogram.
 177         (mips_set_profile, mips_set_profile_size, writeout16, writeout32):
 178         Delete.
 179         (sim_engine_run): Delete code profiling the PC.
 180
 181 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 182
 183         * sim-main.h (SIGNEXTEND): Force type of result to unsigned_word.
 184
 185         * interp.c (sim_monitor): Make register pointers of type
 186         unsigned_word*.
 187
 188         * sim-main.h: Make registers of type unsigned_word not
 189         signed_word.
 190
 191 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 192
 193 start-sanitize-r5900
 194         * sim-main.h (BYTES_IN_MMI_REGS, ..., SUB_REG_FETCH, ..., GPR_SB,
 195         ...): Move to sim-main.h
 196
 197 end-sanitize-r5900
 198         * interp.c (sync_operation): Rename from SyncOperation, make
 199         global, add SD argument.
 200         (prefetch): Rename from Prefetch, make global, add SD argument.
 201         (decode_coproc): Make global.
 202
 203         * sim-main.h (SyncOperation, DecodeCoproc, Pefetch): Define.
 204
 205         * gencode.c (build_instruction): Generate DecodeCoproc not
 206         decode_coproc calls.
 207
 208         * interp.c (SETFCC, GETFCC, PREVCOC1): Move to sim-main.h
 209         (SizeFGR): Move to sim-main.h
 210         (simHALTEX, simHALTIN, simTRACE, simPROFILE, simDELAYSLOT,
 211         simSIGINT, simJALDELAYSLOT): Move to sim-main.h
 212         (FP_FLAGS, FP_ENABLE, FP_CAUSE, IR, UF, OF, DZ, IO, UO): Move to
 213         sim-main.h.
 214         (FP_FS, FP_MASK_RM, FP_SH_RM, FP_RM_NEAREST, FP_RM_TOPINF,
 215         FP_RM_TOMINF, GETRM): Move to sim-main.h.
 216         (Uncached, CachedNoncoherent, CachedCoherent, Cached,
 217         isINSTRUCTION, ..., AccessLength_BYTE, ...): Move to sim-main.h.
 218         (UserMode, BigEndianMem, ByteSwapMem, ReverseEndian,
 219         BigEndianCPU, status_KSU_mask, ...). Moved to sim-main.h
 220
 221         * sim-main.h (ALU32_END, ALU64_END): Define. When overflow raise
 222         exception.
 223         (sim-alu.h): Include.
 224         (NULLIFY_NIA, NULL_CIA, CPU_CIA): Define.
 225         (sim_cia): Typedef to instruction_address.
 226
 227 Thu Oct 16 10:31:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 228
 229         * Makefile.in (interp.o): Rename generated file engine.c to
 230         oengine.c.
 231
 232         * interp.c: Update.
 233
 234 Thu Oct 16 10:31:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 235
 236         * gencode.c (build_instruction): Use FPR_STATE not fpr_state.
 237
 238 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 239
 240         * gencode.c (build_instruction): For "FPSQRT", output correct
 241         number of arguments to Recip.
 242
 243 Tue Oct 14 17:38:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 244
 245         * Makefile.in (interp.o): Depends on sim-main.h
 246
 247         * interp.c (mips16_entry, ColdReset,dotrace): Add SD argument. Use GPR not registers.
 248
 249         * sim-main.h (sim_cpu): Add registers, register_widths, fpr_state,
 250         ipc, dspc, pending_*, hiaccess, loaccess, state, dsstate fields.
 251         (REGISTERS, REGISTER_WIDTHS, FPR_STATE, IPC, DSPC, PENDING_*,
 252         STATE, DSSTATE): Define
 253         (GPR, FGRIDX, ..): Define.
 254
 255         * interp.c (registers, register_widths, fpr_state, ipc, dspc,
 256         pending_*, hiaccess, loaccess, state, dsstate): Delete globals.
 257         (GPR, FGRIDX, ...): Delete macros.
 258
 259         * interp.c: Update names to match defines from sim-main.h
 260
 261 Tue Oct 14 15:11:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 262
 263         * interp.c (sim_monitor): Add SD argument.
 264         (sim_warning): Delete.  Replace calls with calls to
 265         sim_io_eprintf.
 266         (sim_error): Delete. Replace calls with sim_io_error.
 267         (open_trace, writeout32, writeout16, getnum): Add SD argument.
 268         (mips_set_profile): Rename from sim_set_profile. Add SD argument.
 269         (mips_set_profile_size): Rename from sim_set_profile_size. Add SD
 270         argument.
 271         (mips_size): Rename from sim_size. Add SD argument.
 272
 273         * interp.c (simulator): Delete global variable.
 274         (callback): Delete global variable.
 275         (mips_option_handler, sim_open, sim_write, sim_read,
 276         sim_store_register, sim_fetch_register, sim_info, sim_do_command,
 277         sim_size,sim_monitor): Use sim_io_* not callback->*.
 278         (sim_open): ZALLOC simulator struct.
 279         (PROFILE): Do not define.
 280
 281 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 282
 283         * interp.c (sim_open), support.h: Replace CHECKSIM macro found in
 284         support.h with corresponding code.
 285
 286         * sim-main.h (word64, uword64), support.h: Move definition to
 287         sim-main.h.
 288         (WORD64LO, WORD64HI, SET64LO, SET64HI, WORD64, UWORD64): Ditto.
 289
 290         * support.h: Delete
 291         * Makefile.in: Update dependencies
 292         * interp.c: Do not include.
 293
 294 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 295
 296         * interp.c (address_translation, load_memory, store_memory,
 297         cache_op): Rename to from AddressTranslation et.al., make global,
 298         add SD argument
 299
 300         * sim-main.h (AddressTranslation, LoadMemory, StoreMemory,
 301         CacheOp): Define.
 302
 303         * interp.c (SignalException): Rename to signal_exception, make
 304         global.
 305
 306         * interp.c (Interrupt, ...): Move definitions to sim-main.h.
 307
 308         * sim-main.h (SignalException, SignalExceptionInterrupt,
 309         SignalExceptionInstructionFetch, SignalExceptionAddressStore,
 310         SignalExceptionAddressLoad, SignalExceptionSimulatorFault,
 311         SignalExceptionIntegerOverflow, SignalExceptionCoProcessorUnusable):
 312         Define.
 313
 314         * interp.c, support.h: Use.
 315
 316 Tue Oct 14 13:19:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 317
 318         * interp.c (ValueFPR, StoreFPR), sim-main.h: Make global, rename
 319         to value_fpr / store_fpr. Add SD argument.
 320         (NaN, Infinity, Less, Equal, AbsoluteValue, Negate, Add, Sub,
 321         Multiply, Divide, Recip, SquareRoot, Convert): Make global.
 322
 323         * sim-main.h (ValueFPR, StoreFPR): Define.
 324
 325 Tue Oct 14 13:06:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 326
 327         * interp.c (sim_engine_run): Check consistency between configure
 328         WITH_TARGET_WORD_BITSIZE and WITH_FLOATING_POINT and gensim GPRLEN
 329         and HASFPU.
 330
 331         * configure.in (mips_bitsize): Configure WITH_TARGET_WORD_BITSIZE.
 332         (mips_fpu): Configure WITH_FLOATING_POINT.
 333         (mips_endian): Configure WITH_TARGET_ENDIAN.
 334         * configure: Update.
 335
 336 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 337
 338         * configure: Regenerated to track ../common/aclocal.m4 changes.
 339
 340 start-sanitize-r5900
 341 Mon Aug 25 19:11:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 342
 343         * interp.c (MAX_REG): Allow up-to 128 registers.
 344         (LO1, HI1): Define value that matches REGISTER_NAMES in gdb.
 345         (REGISTER_SA): Ditto.
 346         (sim_open): Initialize register_widths for r5900 specific
 347         registers.
 348         (sim_fetch_register, sim_store_register): Check for request of
 349         r5900 specific SA register.  Check for request for hi 64 bits of
 350         r5900 specific registers.
 351
 352 end-sanitize-r5900
 353 Mon Sep 29 14:45:00 1997  Bob Manson  <manson@charmed.cygnus.com>
 354
 355         * configure: Regenerated.
 356
 357 Fri Sep 26 12:48:18 1997  Mark Alexander  <marka@cygnus.com>
 358
 359         * interp.c: Allow Debug, DEPC, and EPC registers to be examined in GDB.
 360
 361 Thu Sep 25 11:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 362
 363         * gencode.c (print_igen_insn_models): Assume certain architectures
 364         include all mips* instructions.
 365         (print_igen_insn_format): Use data_size==-1 as marker for MIPS16
 366         instruction.
 367
 368         * Makefile.in (tmp.igen): Add target. Generate igen input from
 369         gencode file.
 370
 371         * gencode.c (FEATURE_IGEN): Define.
 372         (main): Add --igen option.  Generate output in igen format.
 373         (process_instructions): Format output according to igen option.
 374         (print_igen_insn_format): New function.
 375         (print_igen_insn_models): New function.
 376         (process_instructions): Only issue warnings and ignore
 377         instructions when no FEATURE_IGEN.
 378
 379 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 380
 381         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
 382         MIPS targets.
 383
 384 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 385
 386         * configure: Regenerated to track ../common/aclocal.m4 changes.
 387
 388 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 389
 390         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
 391         SIM_RESERVED_BITS): Delete, moved to common.
 392         (SIM_EXTRA_CFLAGS): Update.
 393
 394 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 395
 396         * configure.in: Configure non-strict memory alignment.
 397         * configure: Regenerated to track ../common/aclocal.m4 changes.
 398
 399 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 400
 401         * configure: Regenerated to track ../common/aclocal.m4 changes.
 402
 403 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
 404
 405         * gencode.c (SDBBP,DERET): Added (3900) insns.
 406         (RFE): Turn on for 3900.
 407         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
 408         (dsstate): Made global.
 409         (SUBTARGET_R3900): Added.
 410         (CANCELDELAYSLOT): New.
 411         (SignalException): Ignore SystemCall rather than ignore and
 412         terminate.  Add DebugBreakPoint handling.
 413         (decode_coproc): New insns RFE, DERET; and new registers Debug
 414         and DEPC protected by SUBTARGET_R3900.
 415         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
 416         bits explicitly.
 417         * Makefile.in,configure.in: Add mips subtarget option.
 418         * configure: Update.
 419
 420 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
 421
 422         * gencode.c: Add r3900 (tx39).
 423
 424 start-sanitize-tx19
 425         * gencode.c: Fix some configuration problems by improving
 426         the relationship between tx19 and tx39.
 427 end-sanitize-tx19
 428
 429 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
 430
 431         * gencode.c (build_instruction): Don't need to subtract 4 for
 432         JALR, just 2.
 433
 434 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
 435
 436         * interp.c: Correct some HASFPU problems.
 437
 438 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 439
 440         * configure: Regenerated to track ../common/aclocal.m4 changes.
 441
 442 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 443
 444         * interp.c (mips_options): Fix samples option short form, should
 445         be `x'.
 446
 447 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 448
 449         * interp.c (sim_info): Enable info code.  Was just returning.
 450
 451 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 452
 453         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
 454         MFC0.
 455
 456 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 457
 458         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
 459         constants.
 460         (build_instruction): Ditto for LL.
 461
 462 start-sanitize-tx19
 463 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
 464
 465         * mips/configure.in, mips/gencode: Add tx19/r1900.
 466
 467 end-sanitize-tx19
 468 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 469
 470         * configure: Regenerated to track ../common/aclocal.m4 changes.
 471
 472 start-sanitize-r5900
 473 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 474
 475         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
 476         for overflow due to ABS of MININT, set result to MAXINT.
 477         (build_instruction): For "psrlvw", signextend bit 31.
 478
 479 end-sanitize-r5900
 480 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 481
 482         * configure: Regenerated to track ../common/aclocal.m4 changes.
 483         * config.in: Ditto.
 484
 485 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 486
 487         * interp.c (sim_open): Add call to sim_analyze_program, update
 488         call to sim_config.
 489
 490 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 491
 492         * interp.c (sim_kill): Delete.
 493         (sim_create_inferior): Add ABFD argument. Set PC from same.
 494         (sim_load): Move code initializing trap handlers from here.
 495         (sim_open): To here.
 496         (sim_load): Delete, use sim-hload.c.
 497
 498         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 499
 500 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 501
 502         * configure: Regenerated to track ../common/aclocal.m4 changes.
 503         * config.in: Ditto.
 504
 505 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 506
 507         * interp.c (sim_open): Add ABFD argument.
 508         (sim_load): Move call to sim_config from here.
 509         (sim_open): To here.  Check return status.
 510
 511 start-sanitize-r5900
 512         * gencode.c (build_instruction): Do not define x8000000000000000,
 513         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 514
 515 end-sanitize-r5900
 516 start-sanitize-r5900
 517 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 518
 519         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 520         "pdivuw" check for overflow due to signed divide by -1.
 521
 522 end-sanitize-r5900
 523 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 524
 525         * gencode.c (build_instruction): Two arg MADD should
 526         not assign result to $0.
 527
 528 start-sanitize-r5900
 529 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 530
 531         * gencode.c (build_instruction): For "ppac5" use unsigned
 532         arrithmetic so that the sign bit doesn't smear when right shifted.
 533         (build_instruction): For "pdiv" perform sign extension when
 534         storing results in HI and LO.
 535         (build_instructions): For "pdiv" and "pdivbw" check for
 536         divide-by-zero.
 537         (build_instruction): For "pmfhl.slw" update hi part of dest
 538         register as well as low part.
 539         (build_instruction): For "pmfhl" portably handle long long values.
 540         (build_instruction): For "pmfhl.sh" correctly negative values.
 541         Store half words 2 and three in the correct place.
 542         (build_instruction): For "psllvw", sign extend value after shift.
 543
 544 end-sanitize-r5900
 545 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 546
 547         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 548         * sim/mips/configure.in: Regenerate.
 549
 550 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 551
 552         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 553         signed8, unsigned8 et.al. types.
 554
 555 start-sanitize-r5900
 556         * gencode.c (build_instruction): For PMULTU* do not sign extend
 557         registers.  Make generated code easier to debug.
 558
 559 end-sanitize-r5900
 560         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 561         hosts when selecting subreg.
 562
 563 start-sanitize-r5900
 564 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 565
 566         * gencode.c (type_for_data_len): For 32bit operations concerned
 567         with overflow, perform op using 64bits.
 568         (build_instruction): For PADD, always compute operation using type
 569         returned by type_for_data_len.
 570         (build_instruction): For PSUBU, when overflow, saturate to zero as
 571         actually underflow.
 572
 573 end-sanitize-r5900
 574 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 575
 576 start-sanitize-r5900
 577         * gencode.c (build_instruction): Handle "pext5" according to
 578         version 1.95 of the r5900 ISA.
 579
 580         * gencode.c (build_instruction): Handle "ppac5" according to
 581         version 1.95 of the r5900 ISA.
 582
 583 end-sanitize-r5900
 584         * interp.c (sim_engine_run): Reset the ZERO register to zero
 585         regardless of FEATURE_WARN_ZERO.
 586         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 587
 588 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 589
 590         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 591         (SignalException): For BreakPoints ignore any mode bits and just
 592         save the PC.
 593         (SignalException): Always set the CAUSE register.
 594
 595 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 596
 597         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 598         exception has been taken.
 599
 600         * interp.c: Implement the ERET and mt/f sr instructions.
 601
 602 start-sanitize-r5900
 603 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 604
 605         * gencode.c (build_instruction): For paddu, extract unsigned
 606         sub-fields.
 607
 608         * gencode.c (build_instruction): Saturate padds instead of padd
 609         instructions.
 610
 611 end-sanitize-r5900
 612 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 613
 614         * interp.c (SignalException): Don't bother restarting an
 615         interrupt.
 616
 617 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 618
 619         * interp.c (SignalException): Really take an interrupt.
 620         (interrupt_event): Only deliver interrupts when enabled.
 621
 622 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 623
 624         * interp.c (sim_info): Only print info when verbose.
 625         (sim_info) Use sim_io_printf for output.
 626
 627 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 628
 629         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 630         mips architectures.
 631
 632 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 633
 634         * interp.c (sim_do_command): Check for common commands if a
 635         simulator specific command fails.
 636
 637 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 638
 639         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 640         and simBE when DEBUG is defined.
 641
 642 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 643
 644         * interp.c (interrupt_event): New function.  Pass exception event
 645         onto exception handler.
 646
 647         * configure.in: Check for stdlib.h.
 648         * configure: Regenerate.
 649
 650         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 651         variable declaration.
 652         (build_instruction): Initialize memval1.
 653         (build_instruction): Add UNUSED attribute to byte, bigend,
 654         reverse.
 655         (build_operands): Ditto.
 656
 657         * interp.c: Fix GCC warnings.
 658         (sim_get_quit_code): Delete.
 659
 660         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 661         * Makefile.in: Ditto.
 662         * configure: Re-generate.
 663
 664         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 665
 666 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 667
 668         * interp.c (mips_option_handler): New function parse argumes using
 669         sim-options.
 670         (myname): Replace with STATE_MY_NAME.
 671         (sim_open): Delete check for host endianness - performed by
 672         sim_config.
 673         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 674         (sim_open): Move much of the initialization from here.
 675         (sim_load): To here.  After the image has been loaded and
 676         endianness set.
 677         (sim_open): Move ColdReset from here.
 678         (sim_create_inferior): To here.
 679         (sim_open): Make FP check less dependant on host endianness.
 680
 681         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 682         run.
 683         * interp.c (sim_set_callbacks): Delete.
 684
 685         * interp.c (membank, membank_base, membank_size): Replace with
 686         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 687         (sim_open): Remove call to callback->init. gdb/run do this.
 688
 689         * interp.c: Update
 690
 691         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 692
 693         * interp.c (big_endian_p): Delete, replaced by
 694         current_target_byte_order.
 695
 696 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 697
 698         * interp.c (host_read_long, host_read_word, host_swap_word,
 699         host_swap_long): Delete. Using common sim-endian.
 700         (sim_fetch_register, sim_store_register): Use H2T.
 701         (pipeline_ticks): Delete.  Handled by sim-events.
 702         (sim_info): Update.
 703         (sim_engine_run): Update.
 704
 705 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 706
 707         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 708         reason from here.
 709         (SignalException): To here. Signal using sim_engine_halt.
 710         (sim_stop_reason): Delete, moved to common.
 711
 712 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 713
 714         * interp.c (sim_open): Add callback argument.
 715         (sim_set_callbacks): Delete SIM_DESC argument.
 716         (sim_size): Ditto.
 717
 718 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 719
 720         * Makefile.in (SIM_OBJS): Add common modules.
 721
 722         * interp.c (sim_set_callbacks): Also set SD callback.
 723         (set_endianness, xfer_*, swap_*): Delete.
 724         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 725         Change to functions using sim-endian macros.
 726         (control_c, sim_stop): Delete, use common version.
 727         (simulate): Convert into.
 728         (sim_engine_run): This function.
 729         (sim_resume): Delete.
 730
 731         * interp.c (simulation): New variable - the simulator object.
 732         (sim_kind): Delete global - merged into simulation.
 733         (sim_load): Cleanup.  Move PC assignment from here.
 734         (sim_create_inferior): To here.
 735
 736         * sim-main.h: New file.
 737         * interp.c (sim-main.h): Include.
 738
 739 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 740
 741         * configure: Regenerated to track ../common/aclocal.m4 changes.
 742
 743 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 744
 745         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 746
 747 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 748
 749         * gencode.c (build_instruction): DIV instructions: check
 750         for division by zero and integer overflow before using
 751         host's division operation.
 752
 753 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 754
 755         * Makefile.in (SIM_OBJS): Add sim-load.o.
 756         * interp.c: #include bfd.h.
 757         (target_byte_order): Delete.
 758         (sim_kind, myname, big_endian_p): New static locals.
 759         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 760         after argument parsing.  Recognize -E arg, set endianness accordingly.
 761         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 762         load file into simulator.  Set PC from bfd.
 763         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 764         (set_endianness): Use big_endian_p instead of target_byte_order.
 765
 766 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 767
 768         * interp.c (sim_size): Delete prototype - conflicts with
 769         definition in remote-sim.h.  Correct definition.
 770
 771 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 772
 773         * configure: Regenerated to track ../common/aclocal.m4 changes.
 774         * config.in: Ditto.
 775
 776 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 777
 778         * interp.c (sim_open): New arg `kind'.
 779
 780         * configure: Regenerated to track ../common/aclocal.m4 changes.
 781
 782 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 783
 784         * configure: Regenerated to track ../common/aclocal.m4 changes.
 785
 786 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 787
 788         * interp.c (sim_open): Set optind to 0 before calling getopt.
 789
 790 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 791
 792         * configure: Regenerated to track ../common/aclocal.m4 changes.
 793
 794 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 795
 796         * interp.c : Replace uses of pr_addr with pr_uword64
 797         where the bit length is always 64 independent of SIM_ADDR.
 798         (pr_uword64) : added.
 799
 800 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 801
 802         * configure: Re-generate.
 803
 804 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 805
 806         * configure: Regenerate to track ../common/aclocal.m4 changes.
 807
 808 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 809
 810         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 811         in argv form.
 812         (other sim_*): New SIM_DESC argument.
 813
 814 start-sanitize-r5900
 815 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 816
 817         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 818         Change values to avoid overloading DOUBLEWORD which is tested
 819         for all insns.
 820         * gencode.c: reinstate "offending code".
 821
 822 end-sanitize-r5900
 823 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 824
 825         * interp.c: Fix printing of addresses for non-64-bit targets.
 826         (pr_addr): Add function to print address based on size.
 827 start-sanitize-r5900
 828         * gencode.c: #ifdef out offending code until a permanent fix
 829         can be added.  Code is causing build errors for non-5900 mips targets.
 830 end-sanitize-r5900
 831
 832 start-sanitize-r5900
 833 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 834
 835         * gencode.c (process_instructions): Correct test for ISA dependent
 836         architecture bits in isa field of MIPS_DECODE.
 837
 838 end-sanitize-r5900
 839 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 840
 841         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 842
 843 start-sanitize-r5900
 844 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 845
 846         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 847         PMADDUW.
 848
 849 end-sanitize-r5900
 850 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 851
 852         * gencode.c (build_mips16_operands): Correct computation of base
 853         address for extended PC relative instruction.
 854
 855 start-sanitize-r5900
 856 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 857
 858         * Makefile.in, configure, configure.in, gencode.c,
 859         interp.c, support.h: add r5900.
 860
 861 end-sanitize-r5900
 862 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 863
 864         * interp.c (mips16_entry): Add support for floating point cases.
 865         (SignalException): Pass floating point cases to mips16_entry.
 866         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 867         registers.
 868         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 869         or fmt_word.
 870         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 871         and then set the state to fmt_uninterpreted.
 872         (COP_SW): Temporarily set the state to fmt_word while calling
 873         ValueFPR.
 874
 875 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 876
 877         * gencode.c (build_instruction): The high order may be set in the
 878         comparison flags at any ISA level, not just ISA 4.
 879
 880 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 881
 882         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 883         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 884         * configure.in: sinclude ../common/aclocal.m4.
 885         * configure: Regenerated.
 886
 887 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 888
 889         * configure: Rebuild after change to aclocal.m4.
 890
 891 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 892
 893         * configure configure.in Makefile.in:  Update to new configure
 894         scheme which is more compatible with WinGDB builds.
 895         * configure.in:  Improve comment on how to run autoconf.
 896         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 897         * Makefile.in:  Use autoconf substitution to install common
 898         makefile fragment.
 899
 900 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 901
 902         * gencode.c (build_instruction): Use BigEndianCPU instead of
 903         ByteSwapMem.
 904
 905 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 906
 907         * interp.c (sim_monitor): Make output to stdout visible in
 908         wingdb's I/O log window.
 909
 910 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 911
 912         * support.h: Undo previous change to SIGTRAP
 913         and SIGQUIT values.
 914
 915 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 916
 917         * interp.c (store_word, load_word): New static functions.
 918         (mips16_entry): New static function.
 919         (SignalException): Look for mips16 entry and exit instructions.
 920         (simulate): Use the correct index when setting fpr_state after
 921         doing a pending move.
 922
 923 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 924
 925         * interp.c: Fix byte-swapping code throughout to work on
 926         both little- and big-endian hosts.
 927
 928 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
 929
 930         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
 931         with gdb/config/i386/xm-windows.h.
 932
 933 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
 934
 935         * gencode.c (build_instruction): Work around MSVC++ code gen bug
 936         that messes up arithmetic shifts.
 937
 938 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
 939
 940         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
 941         SIGTRAP and SIGQUIT for _WIN32.
 942
 943 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
 944
 945         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
 946         force a 64 bit multiplication.
 947         (build_instruction) [OR]: In mips16 mode, don't do anything if the
 948         destination register is 0, since that is the default mips16 nop
 949         instruction.
 950
 951 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 952
 953         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
 954         (build_endian_shift): Don't check proc64.
 955         (build_instruction): Always set memval to uword64.  Cast op2 to
 956         uword64 when shifting it left in memory instructions.  Always use
 957         the same code for stores--don't special case proc64.
 958
 959         * gencode.c (build_mips16_operands): Fix base PC value for PC
 960         relative operands.
 961         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
 962         jal instruction.
 963         * interp.c (simJALDELAYSLOT): Define.
 964         (JALDELAYSLOT): Define.
 965         (INDELAYSLOT, INJALDELAYSLOT): Define.
 966         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
 967
 968 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
 969
 970         * interp.c (sim_open): add flush_cache as a PMON routine
 971         (sim_monitor): handle flush_cache by ignoring it
 972
 973 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
 974
 975         * gencode.c (build_instruction): Use !ByteSwapMem instead of
 976         BigEndianMem.
 977         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
 978         (BigEndianMem): Rename to ByteSwapMem and change sense.
 979         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
 980         BigEndianMem references to !ByteSwapMem.
 981         (set_endianness): New function, with prototype.
 982         (sim_open): Call set_endianness.
 983         (sim_info): Use simBE instead of BigEndianMem.
 984         (xfer_direct_word, xfer_direct_long, swap_direct_word,
 985         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
 986         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
 987         ifdefs, keeping the prototype declaration.
 988         (swap_word): Rewrite correctly.
 989         (ColdReset): Delete references to CONFIG.  Delete endianness related
 990         code; moved to set_endianness.
 991
 992 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
 993
 994         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
 995         * interp.c (CHECKHILO): Define away.
 996         (simSIGINT): New macro.
 997         (membank_size): Increase from 1MB to 2MB.
 998         (control_c): New function.
 999         (sim_resume): Rename parameter signal to signal_number.  Add local
1000         variable prev.  Call signal before and after simulate.
1001         (sim_stop_reason): Add simSIGINT support.
1002         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
1003         functions always.
1004         (sim_warning): Delete call to SignalException.  Do call printf_filtered
1005         if logfh is NULL.
1006         (AddressTranslation): Add #ifdef DEBUG around debugging message and
1007         a call to sim_warning.
1008
1009 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
1010
1011         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
1012         16 bit instructions.
1013
1014 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1015
1016         Add support for mips16 (16 bit MIPS implementation):
1017         * gencode.c (inst_type): Add mips16 instruction encoding types.
1018         (GETDATASIZEINSN): Define.
1019         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
1020         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
1021         mtlo.
1022         (MIPS16_DECODE): New table, for mips16 instructions.
1023         (bitmap_val): New static function.
1024         (struct mips16_op): Define.
1025         (mips16_op_table): New table, for mips16 operands.
1026         (build_mips16_operands): New static function.
1027         (process_instructions): If PC is odd, decode a mips16
1028         instruction.  Break out instruction handling into new
1029         build_instruction function.
1030         (build_instruction): New static function, broken out of
1031         process_instructions.  Check modifiers rather than flags for SHIFT
1032         bit count and m[ft]{hi,lo} direction.
1033         (usage): Pass program name to fprintf.
1034         (main): Remove unused variable this_option_optind.  Change
1035         ``*loptarg++'' to ``loptarg++''.
1036         (my_strtoul): Parenthesize && within ||.
1037         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
1038         (simulate): If PC is odd, fetch a 16 bit instruction, and
1039         increment PC by 2 rather than 4.
1040         * configure.in: Add case for mips16*-*-*.
1041         * configure: Rebuild.
1042
1043 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
1044
1045         * interp.c: Allow -t to enable tracing in standalone simulator.
1046         Fix garbage output in trace file and error messages.
1047
1048 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
1049
1050         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
1051         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
1052         * configure.in: Simplify using macros in ../common/aclocal.m4.
1053         * configure: Regenerated.
1054         * tconfig.in: New file.
1055
1056 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
1057
1058         * interp.c: Fix bugs in 64-bit port.
1059         Use ansi function declarations for msvc compiler.
1060         Initialize and test file pointer in trace code.
1061         Prevent duplicate definition of LAST_EMED_REGNUM.
1062
1063 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
1064
1065         * interp.c (xfer_big_long): Prevent unwanted sign extension.
1066
1067 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
1068
1069         * interp.c (SignalException): Check for explicit terminating
1070         breakpoint value.
1071         * gencode.c: Pass instruction value through SignalException()
1072         calls for Trap, Breakpoint and Syscall.
1073
1074 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1075
1076         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
1077         only used on those hosts that provide it.
1078         * configure.in: Add sqrt() to list of functions to be checked for.
1079         * config.in: Re-generated.
1080         * configure: Re-generated.
1081
1082 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1083
1084         * gencode.c (process_instructions): Call build_endian_shift when
1085         expanding STORE RIGHT, to fix swr.
1086         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
1087         clear the high bits.
1088         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
1089         Fix float to int conversions to produce signed values.
1090
1091 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
1092
1093         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
1094         (process_instructions): Correct handling of nor instruction.
1095         Correct shift count for 32 bit shift instructions. Correct sign
1096         extension for arithmetic shifts to not shift the number of bits in
1097         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
1098         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
1099         Fix madd.
1100         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
1101         It's OK to have a mult follow a mult.  What's not OK is to have a
1102         mult follow an mfhi.
1103         (Convert): Comment out incorrect rounding code.
1104
1105 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
1106
1107         * interp.c (sim_monitor): Improved monitor printf
1108         simulation. Tidied up simulator warnings, and added "--log" option
1109         for directing warning message output.
1110         * gencode.c: Use sim_warning() rather than WARNING macro.
1111
1112 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1113
1114         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
1115         getopt1.o, rather than on gencode.c.  Link objects together.
1116         Don't link against -liberty.
1117         (gencode.o, getopt.o, getopt1.o): New targets.
1118         * gencode.c: Include <ctype.h> and "ansidecl.h".
1119         (AND): Undefine after including "ansidecl.h".
1120         (ULONG_MAX): Define if not defined.
1121         (OP_*): Don't define macros; now defined in opcode/mips.h.
1122         (main): Call my_strtoul rather than strtoul.
1123         (my_strtoul): New static function.
1124
1125 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
1126
1127         * gencode.c (process_instructions):  Generate word64 and uword64
1128         instead of `long long' and `unsigned long long' data types.
1129         * interp.c:  #include sysdep.h to get signals, and define default
1130         for SIGBUS.
1131         * (Convert):  Work around for Visual-C++ compiler bug with type
1132         conversion.
1133         * support.h:  Make things compile under Visual-C++ by using
1134         __int64 instead of `long long'.  Change many refs to long long
1135         into word64/uword64 typedefs.
1136
1137 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
1138
1139         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
1140         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
1141         (docdir): Removed.
1142         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
1143         (AC_PROG_INSTALL): Added.
1144         (AC_PROG_CC): Moved to before configure.host call.
1145         * configure: Rebuilt.
1146
1147 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
1148
1149         * configure.in: Define @SIMCONF@ depending on mips target.
1150         * configure: Rebuild.
1151         * Makefile.in (run): Add @SIMCONF@ to control simulator
1152         construction.
1153         * gencode.c: Change LOADDRMASK to 64bit memory model only.
1154         * interp.c: Remove some debugging, provide more detailed error
1155         messages, update memory accesses to use LOADDRMASK.
1156
1157 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
1158
1159         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
1160         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
1161         stamp-h.
1162         * configure: Rebuild.
1163         * config.in: New file, generated by autoheader.
1164         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
1165         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
1166         HAVE_ANINT and HAVE_AINT, as appropriate.
1167         * Makefile.in (run): Use @LIBS@ rather than -lm.
1168         (interp.o): Depend upon config.h.
1169         (Makefile): Just rebuild Makefile.
1170         (clean): Remove stamp-h.
1171         (mostlyclean): Make the same as clean, not as distclean.
1172         (config.h, stamp-h): New targets.
1173
1174 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1175
1176         * interp.c (ColdReset): Fix boolean test. Make all simulator
1177         globals static.
1178
1179 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
1180
1181         * interp.c (xfer_direct_word, xfer_direct_long,
1182         swap_direct_word, swap_direct_long, xfer_big_word,
1183         xfer_big_long, xfer_little_word, xfer_little_long,
1184         swap_word,swap_long): Added.
1185         * interp.c (ColdReset): Provide function indirection to
1186         host<->simulated_target transfer routines.
1187         * interp.c (sim_store_register, sim_fetch_register): Updated to
1188         make use of indirected transfer routines.
1189
1190 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
1191
1192         * gencode.c (process_instructions): Ensure FP ABS instruction
1193         recognised.
1194         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
1195         system call support.
1196
1197 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
1198
1199         * interp.c (sim_do_command): Complain if callback structure not
1200         initialised.
1201
1202 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
1203
1204         * interp.c (Convert): Provide round-to-nearest and round-to-zero
1205         support for Sun hosts.
1206         * Makefile.in (gencode): Ensure the host compiler and libraries
1207         used for cross-hosted build.
1208
1209 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
1210
1211         * interp.c, gencode.c: Some more (TODO) tidying.
1212
1213 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
1214
1215         * gencode.c, interp.c: Replaced explicit long long references with
1216         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
1217         * support.h (SET64LO, SET64HI): Macros added.
1218
1219 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
1220
1221         * configure: Regenerate with autoconf 2.7.
1222
1223 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
1224
1225         * interp.c (LoadMemory): Enclose text following #endif in /* */.
1226         * support.h: Remove superfluous "1" from #if.
1227         * support.h (CHECKSIM): Remove stray 'a' at end of line.
1228
1229 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
1230
1231         * interp.c (StoreFPR): Control UndefinedResult() call on
1232         WARN_RESULT manifest.
1233
1234 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
1235
1236         * gencode.c: Tidied instruction decoding, and added FP instruction
1237         support.
1238
1239         * interp.c: Added dineroIII, and BSD profiling support. Also
1240         run-time FP handling.
1241
1242 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
1243
1244         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
1245         gencode.c, interp.c, support.h: created.