sim/mips/ChangeLog

   1 Wed Nov 26 11:00:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * mips.igen (LWC1): Correct assembler - lwc1 not swc1.
   4
   5 start-sanitize-vr5400
   6         * mdmx.igen (value_vr): Correct sim_io_eprintf format argument.
   7
   8         * sim-main.h: Add 8*3*8 bit accumulator.
   9
  10         * vr5400.igen: Move mdmx instructins from here
  11         * mdmx.igen: To here - new file. Add/fix missing instructions.
  12         * mips.igen: Include mdmx.igen.
  13
  14 start-sanitize-vr5400
  15 Sun Nov 23 01:45:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  16
  17         * sim-main.h (sim-fpu.h): Include.
  18
  19         * interp.c (convert, SquareRoot, Recip, Divide, Multiply, Sub,
  20         Add, Negate, AbsoluteValue, Equal, Less, Infinity, NaN): Rewrite
  21         using host independant sim_fpu module.
  22
  23 Thu Nov 20 19:56:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  24
  25         * interp.c (signal_exception): Report internal errors with SIGABRT
  26         not SIGQUIT.
  27
  28         * sim-main.h (C0_CONFIG): New register.
  29         (signal.h): No longer include.
  30
  31         * interp.c (decode_coproc): Allow access C0_CONFIG to register.
  32
  33 Tue Nov 18 15:33:48 1997  Doug Evans  <devans@canuck.cygnus.com>
  34
  35         * Makefile.in (SIM_OBJS): Use $(SIM_NEW_COMMON_OBJS).
  36
  37 Fri Nov 14 11:56:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  38
  39         * mips.igen: Tag vr5000 instructions.
  40         (ANDI): Was missing mipsIV model, fix assembler syntax.
  41         (do_c_cond_fmt): New function.
  42         (C.cond.fmt): Handle mips I-III which do not support CC field
  43         separatly.
  44         (bc1): Handle mips IV which do not have a delaed FCC separatly.
  45         (SDR): Mask paddr when BigEndianMem, not the converse as specified
  46         in IV3.2 spec.
  47         (DMULT, DMULTU): Force use of hosts 64bit multiplication.  Handle
  48         vr5000 which saves LO in a GPR separatly.
  49
  50         * configure.in (enable-sim-igen): For vr5000, select vr5000
  51         specific instructions.
  52         * configure: Re-generate.
  53
  54 Wed Nov 12 14:42:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  55
  56         * Makefile.in (SIM_OBJS): Add sim-fpu module.
  57
  58         * interp.c (store_fpr), sim-main.h: Add separate fmt_uninterpreted_32 and
  59         fmt_uninterpreted_64 bit cases to switch.  Convert to
  60         fmt_formatted,
  61
  62         * sim-main.h (ENGINE_ISSUE_PREFIX_HOOK): Define,
  63
  64         * mips.igen (SWR): Mask paddr when BigEndianMem, not the converse
  65         as specified in IV3.2 spec.
  66         (MTC1, DMTC1): Call StoreFPR to store the GPR in the FPR.
  67
  68 Tue Nov 11 12:38:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  69
  70         * mips.igen: Delay slot branches add OFFSET to NIA not CIA.
  71         (MFC0, MTC0, SWC1, LWC1, SDC1, LDC1): Implement.
  72         (start-sanitize-r5900):
  73         (LWXC1, SWXC1): Delete from r5900 instruction set.
  74         (end-sanitize-r5900):
  75         (MTC1, MFC1, DMTC1, DMFC1, CFC1, CTC1): Implement separate non
  76         PENDING_FILL versions of instructions.  Simplify.
  77         (X): New function.
  78         (MULT, MULTU): Implement separate RD==0 and RD!=0 versions of
  79         instructions.
  80         (BEQZ, ..., SLT, SLTI, TLT, TLE, TLI, ...): Explicitly cast GPR to
  81         a signed value.
  82         (MTHI, MFHI): Disable code checking HI-LO.
  83
  84         * sim-main.h (dotrace,tracefh), interp.c: Make dotrace & tracefh
  85         global.
  86         (NULLIFY_NEXT_INSTRUCTION): Call dotrace.
  87
  88 Thu Nov  6 16:36:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  89
  90         * gencode.c (build_mips16_operands): Replace IPC with cia.
  91
  92         * interp.c (sim_monitor, signal_exception, cache_op, store_fpr,
  93         value_fpr, cop_ld, cop_lw, cop_sw, cop_sd, decode_coproc): Replace
  94         IPC to `cia'.
  95         (UndefinedResult): Replace function with macro/function
  96         combination.
  97         (sim_engine_run): Don't save PC in IPC.
  98
  99         * sim-main.h (IPC): Delete.
 100
 101         start-sanitize-vr5400
 102         * vr5400.igen (vr): Add missing cia argument to value_fpr.
 103         (do_select): Rename function select.
 104         end-sanitize-vr5400
 105
 106         * interp.c (signal_exception, store_word, load_word,
 107         address_translation, load_memory, store_memory, cache_op,
 108         prefetch, sync_operation, ifetch, value_fpr, store_fpr, convert,
 109         cop_lw, cop_ld, cop_sw, cop_sd, decode_coproc, sim_monitor): Add
 110         current instruction address - cia - argument.
 111         (sim_read, sim_write): Call address_translation directly.
 112         (sim_engine_run): Rename variable vaddr to cia.
 113         (signal_exception): Pass cia to sim_monitor
 114
 115         * sim-main.h (SignalException, LoadWord, StoreWord, CacheOp,
 116         Prefetch, SyncOperation, ValueFPR, StoreFPR, Convert, COP_LW,
 117         COP_LD, COP_SW, COP_SD, DecodeCoproc): Update.
 118
 119         * sim-main.h (SignalExceptionSimulatorFault): Delete definition.
 120         * interp.c (sim_open): Replace SignalExceptionSimulatorFault with
 121         SIM_ASSERT.
 122
 123         * interp.c (signal_exception): Pass restart address to
 124         sim_engine_restart.
 125
 126         * Makefile.in (semantics.o, engine.o, support.o, itable.o,
 127         idecode.o): Add dependency.
 128
 129         * sim-main.h (SIM_ENGINE_HALT_HOOK, SIM_ENGINE_RESUME_HOOK):
 130         Delete definitions
 131         (DELAY_SLOT): Update NIA not PC with branch address.
 132         (NULLIFY_NEXT_INSTRUCTION): Set NIA to instruction after next.
 133
 134         * mips.igen: Use CIA not PC in branch calculations.
 135         (illegal): Call SignalException.
 136         (BEQ, ADDIU): Fix assembler.
 137
 138 Wed Nov  5 12:19:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 139
 140         * m16.igen (JALX): Was missing.
 141
 142         * configure.in (enable-sim-igen): New configuration option.
 143         * configure: Re-generate.
 144
 145         * sim-main.h (MAX_INSNS, INSN_NAME): Define.
 146
 147         * interp.c (load_memory, store_memory): Delete parameter RAW.
 148         (sim_read, sim_write): Use sim_core_{read,write}_buffer directly
 149         bypassing {load,store}_memory.
 150
 151         * sim-main.h (ByteSwapMem): Delete definition.
 152
 153         * Makefile.in (SIM_OBJS): Add sim-memopt module.
 154
 155         * interp.c (sim_do_command, sim_commands): Delete mips specific
 156         commands.  Handled by module sim-options.
 157
 158         * sim-main.h (SIM_HAVE_FLATMEM): Undefine, use sim-core.o module.
 159         (WITH_MODULO_MEMORY): Define.
 160
 161         * interp.c (sim_info): Delete code printing memory size.
 162
 163         * interp.c (mips_size): Nee sim_size, delete function.
 164         (power2): Delete.
 165         (monitor, monitor_base, monitor_size): Delete global variables.
 166         (sim_open, sim_close): Delete code creating monitor and other
 167         memory regions.  Use sim-memopts module, via sim_do_commandf, to
 168         manage memory regions.
 169         (load_memory, store_memory): Use sim-core for memory model.
 170
 171         * interp.c (address_translation): Delete all memory map code
 172         except line forcing 32 bit addresses.
 173
 174 Wed Nov  5 11:21:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 175
 176         * sim-main.h (WITH_TRACE): Delete definition.  Enables common
 177         trace options.
 178
 179         * interp.c (logfh, logfile): Delete globals.
 180         (sim_open, sim_close): Delete code opening & closing log file.
 181         (mips_option_handler): Delete -l and -n options.
 182         (OPTION mips_options): Ditto.
 183
 184         * interp.c (OPTION mips_options): Rename option trace to dinero.
 185         (mips_option_handler): Update.
 186
 187 Wed Nov  5 09:35:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 188
 189         * interp.c (fetch_str): New function.
 190         (sim_monitor): Rewrite using sim_read & sim_write.
 191         (sim_open): Check magic number.
 192         (sim_open): Write monitor vectors into memory using sim_write.
 193         (MONITOR_BASE, MONITOR_SIZE, MEM_SIZE): Define.
 194         (sim_read, sim_write): Simplify - transfer data one byte at a
 195         time.
 196         (load_memory, store_memory): Clarify meaning of parameter RAW.
 197
 198         * sim-main.h (isHOST): Defete definition.
 199         (isTARGET): Mark as depreciated.
 200         (address_translation): Delete parameter HOST.
 201
 202         * interp.c (address_translation): Delete parameter HOST.
 203
 204 start-sanitize-tx49
 205 Wed Oct 29 14:21:32 1997  Gavin Koch  <gavin@cygnus.com>
 206
 207         * gencode.c: Add tx49 configury and insns.
 208         * configure.in: Add tx49 configury.
 209         * configure: Update.
 210
 211 end-sanitize-tx49
 212 Wed Oct 29 11:13:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 213
 214         * mips.igen:
 215
 216         * Makefile.in (IGEN_INCLUDE): Files included by mips.igen.
 217         (tmp-igen, tmp-m16): Depend on IGEN_INCLUDE.
 218
 219 Tue Oct 28 11:06:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 220
 221         * mips.igen: Add model filter field to records.
 222
 223 Mon Oct 27 17:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 224
 225         * Makefile.in (SIM_NO_CFLAGS): Define.  Define WITH_IGEN=0.
 226
 227         interp.c (sim_engine_run): Do not compile function sim_engine_run
 228         when WITH_IGEN == 1.
 229
 230         * configure.in (sim_igen_flags, sim_m16_flags): Set according to
 231         target architecture.
 232
 233         Makefile.in (tmp-igen, tmp-m16): Drop -F and -M options to
 234         igen. Replace with configuration variables sim_igen_flags /
 235         sim_m16_flags.
 236
 237         start-sanitize-r5900
 238         * r5900.igen: New file. Copy r5900 insns here.
 239         end-sanitize-r5900
 240         start-sanitize-vr5400
 241         * vr5400.igen: New file.
 242         end-sanitize-v5400
 243         * m16.igen: New file.  Copy mips16 insns here.
 244         * mips.igen: From here.
 245
 246 Mon Oct 27 13:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 247
 248         start-sanitize-vr5400
 249         * mips.igen: Tag all mipsIV instructions with vr5400 model.
 250
 251         * configure.in: Add mips64vr5400 target.
 252         * configure: Re-generate.
 253
 254         end-sanitize-vr5400
 255         * Makefile.in (SIM_NO_OBJ): Define, move SIM_M16_OBJ, SIM_IGEN_OBJ
 256         to top.
 257         (tmp-igen, tmp-m16): Pass -I srcdir to igen.
 258
 259 Sat Oct 25 16:51:40 1997  Gavin Koch  <gavin@cygnus.com>
 260
 261         * gencode.c (build_instruction): Follow sim_write's lead in using
 262         BigEndianMem instead of !ByteSwapMem.
 263
 264 Fri Oct 24 17:41:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 265
 266         * configure.in (sim_gen): Dependent on target, select type of
 267         generator.  Always select old style generator.
 268
 269         configure: Re-generate.
 270
 271         Makefile.in (tmp-igen, tmp-m16, clean-m16, clean-igen): New
 272         targets.
 273         (SIM_M16_CFLAGS, SIM_M16_ALL, SIM_M16_OBJ, BUILT_SRC_FROM_M16,
 274         SIM_IGEN_CFLAGS, SIM_IGEN_ALL, SIM_IGEN_OBJ, BUILT_SRC_FROM_IGEN,
 275         IGEN_TRACE, IGEN_INSN, IGEN_DC): Define
 276         (SIM_EXTRA_CFLAGS, SIM_EXTRA_ALL, SIM_OBJS): Add member
 277         SIM_@sim_gen@_*, set by autoconf.
 278
 279 Wed Oct 22 12:52:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 280
 281         * sim-main.h (NULLIFY_NEXT_INSTRUCTION, DELAY_SLOT): Define.
 282
 283         * interp.c (ColdReset): Remove #ifdef HASFPU, check
 284         CURRENT_FLOATING_POINT instead.
 285
 286         * interp.c (ifetch32): New function. Fetch 32 bit instruction.
 287         (address_translation): Raise exception InstructionFetch when
 288         translation fails and isINSTRUCTION.
 289
 290         * interp.c (sim_open, sim_write, sim_monitor, store_word,
 291         sim_engine_run): Change type of of vaddr and paddr to
 292         address_word.
 293         (address_translation, prefetch, load_memory, store_memory,
 294         cache_op): Change type of vAddr and pAddr to address_word.
 295
 296         * gencode.c (build_instruction): Change type of vaddr and paddr to
 297         address_word.
 298
 299 Mon Oct 20 15:29:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 300
 301         * sim-main.h (ALU64_END, ALU32_END): Use ALU*_OVERFLOW_RESULT
 302         macro to obtain result of ALU op.
 303
 304 Tue Oct 21 17:39:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 305
 306         * interp.c (sim_info): Call profile_print.
 307
 308 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 309
 310         * Makefile.in (SIM_OBJS): Add sim-profile.o module.
 311
 312         * sim-main.h (WITH_PROFILE): Do not define, defined in
 313         common/sim-config.h.  Use sim-profile module.
 314         (simPROFILE): Delete defintion.
 315
 316         * interp.c (PROFILE): Delete definition.
 317         (mips_option_handler): Delete 'p', 'y' and 'x' profile options.
 318         (sim_close): Delete code writing profile histogram.
 319         (mips_set_profile, mips_set_profile_size, writeout16, writeout32):
 320         Delete.
 321         (sim_engine_run): Delete code profiling the PC.
 322
 323 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 324
 325         * sim-main.h (SIGNEXTEND): Force type of result to unsigned_word.
 326
 327         * interp.c (sim_monitor): Make register pointers of type
 328         unsigned_word*.
 329
 330         * sim-main.h: Make registers of type unsigned_word not
 331         signed_word.
 332
 333 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 334
 335 start-sanitize-r5900
 336         * sim-main.h (BYTES_IN_MMI_REGS, ..., SUB_REG_FETCH, ..., GPR_SB,
 337         ...): Move to sim-main.h
 338
 339 end-sanitize-r5900
 340         * interp.c (sync_operation): Rename from SyncOperation, make
 341         global, add SD argument.
 342         (prefetch): Rename from Prefetch, make global, add SD argument.
 343         (decode_coproc): Make global.
 344
 345         * sim-main.h (SyncOperation, DecodeCoproc, Pefetch): Define.
 346
 347         * gencode.c (build_instruction): Generate DecodeCoproc not
 348         decode_coproc calls.
 349
 350         * interp.c (SETFCC, GETFCC, PREVCOC1): Move to sim-main.h
 351         (SizeFGR): Move to sim-main.h
 352         (simHALTEX, simHALTIN, simTRACE, simPROFILE, simDELAYSLOT,
 353         simSIGINT, simJALDELAYSLOT): Move to sim-main.h
 354         (FP_FLAGS, FP_ENABLE, FP_CAUSE, IR, UF, OF, DZ, IO, UO): Move to
 355         sim-main.h.
 356         (FP_FS, FP_MASK_RM, FP_SH_RM, FP_RM_NEAREST, FP_RM_TOPINF,
 357         FP_RM_TOMINF, GETRM): Move to sim-main.h.
 358         (Uncached, CachedNoncoherent, CachedCoherent, Cached,
 359         isINSTRUCTION, ..., AccessLength_BYTE, ...): Move to sim-main.h.
 360         (UserMode, BigEndianMem, ByteSwapMem, ReverseEndian,
 361         BigEndianCPU, status_KSU_mask, ...). Moved to sim-main.h
 362
 363         * sim-main.h (ALU32_END, ALU64_END): Define. When overflow raise
 364         exception.
 365         (sim-alu.h): Include.
 366         (NULLIFY_NIA, NULL_CIA, CPU_CIA): Define.
 367         (sim_cia): Typedef to instruction_address.
 368
 369 Thu Oct 16 10:31:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 370
 371         * Makefile.in (interp.o): Rename generated file engine.c to
 372         oengine.c.
 373
 374         * interp.c: Update.
 375
 376 Thu Oct 16 10:31:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 377
 378         * gencode.c (build_instruction): Use FPR_STATE not fpr_state.
 379
 380 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 381
 382         * gencode.c (build_instruction): For "FPSQRT", output correct
 383         number of arguments to Recip.
 384
 385 Tue Oct 14 17:38:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 386
 387         * Makefile.in (interp.o): Depends on sim-main.h
 388
 389         * interp.c (mips16_entry, ColdReset,dotrace): Add SD argument. Use GPR not registers.
 390
 391         * sim-main.h (sim_cpu): Add registers, register_widths, fpr_state,
 392         ipc, dspc, pending_*, hiaccess, loaccess, state, dsstate fields.
 393         (REGISTERS, REGISTER_WIDTHS, FPR_STATE, IPC, DSPC, PENDING_*,
 394         STATE, DSSTATE): Define
 395         (GPR, FGRIDX, ..): Define.
 396
 397         * interp.c (registers, register_widths, fpr_state, ipc, dspc,
 398         pending_*, hiaccess, loaccess, state, dsstate): Delete globals.
 399         (GPR, FGRIDX, ...): Delete macros.
 400
 401         * interp.c: Update names to match defines from sim-main.h
 402
 403 Tue Oct 14 15:11:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 404
 405         * interp.c (sim_monitor): Add SD argument.
 406         (sim_warning): Delete.  Replace calls with calls to
 407         sim_io_eprintf.
 408         (sim_error): Delete. Replace calls with sim_io_error.
 409         (open_trace, writeout32, writeout16, getnum): Add SD argument.
 410         (mips_set_profile): Rename from sim_set_profile. Add SD argument.
 411         (mips_set_profile_size): Rename from sim_set_profile_size. Add SD
 412         argument.
 413         (mips_size): Rename from sim_size. Add SD argument.
 414
 415         * interp.c (simulator): Delete global variable.
 416         (callback): Delete global variable.
 417         (mips_option_handler, sim_open, sim_write, sim_read,
 418         sim_store_register, sim_fetch_register, sim_info, sim_do_command,
 419         sim_size,sim_monitor): Use sim_io_* not callback->*.
 420         (sim_open): ZALLOC simulator struct.
 421         (PROFILE): Do not define.
 422
 423 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 424
 425         * interp.c (sim_open), support.h: Replace CHECKSIM macro found in
 426         support.h with corresponding code.
 427
 428         * sim-main.h (word64, uword64), support.h: Move definition to
 429         sim-main.h.
 430         (WORD64LO, WORD64HI, SET64LO, SET64HI, WORD64, UWORD64): Ditto.
 431
 432         * support.h: Delete
 433         * Makefile.in: Update dependencies
 434         * interp.c: Do not include.
 435
 436 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 437
 438         * interp.c (address_translation, load_memory, store_memory,
 439         cache_op): Rename to from AddressTranslation et.al., make global,
 440         add SD argument
 441
 442         * sim-main.h (AddressTranslation, LoadMemory, StoreMemory,
 443         CacheOp): Define.
 444
 445         * interp.c (SignalException): Rename to signal_exception, make
 446         global.
 447
 448         * interp.c (Interrupt, ...): Move definitions to sim-main.h.
 449
 450         * sim-main.h (SignalException, SignalExceptionInterrupt,
 451         SignalExceptionInstructionFetch, SignalExceptionAddressStore,
 452         SignalExceptionAddressLoad, SignalExceptionSimulatorFault,
 453         SignalExceptionIntegerOverflow, SignalExceptionCoProcessorUnusable):
 454         Define.
 455
 456         * interp.c, support.h: Use.
 457
 458 Tue Oct 14 13:19:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 459
 460         * interp.c (ValueFPR, StoreFPR), sim-main.h: Make global, rename
 461         to value_fpr / store_fpr. Add SD argument.
 462         (NaN, Infinity, Less, Equal, AbsoluteValue, Negate, Add, Sub,
 463         Multiply, Divide, Recip, SquareRoot, Convert): Make global.
 464
 465         * sim-main.h (ValueFPR, StoreFPR): Define.
 466
 467 Tue Oct 14 13:06:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 468
 469         * interp.c (sim_engine_run): Check consistency between configure
 470         WITH_TARGET_WORD_BITSIZE and WITH_FLOATING_POINT and gensim GPRLEN
 471         and HASFPU.
 472
 473         * configure.in (mips_bitsize): Configure WITH_TARGET_WORD_BITSIZE.
 474         (mips_fpu): Configure WITH_FLOATING_POINT.
 475         (mips_endian): Configure WITH_TARGET_ENDIAN.
 476         * configure: Update.
 477
 478 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 479
 480         * configure: Regenerated to track ../common/aclocal.m4 changes.
 481
 482 start-sanitize-r5900
 483 Mon Aug 25 19:11:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 484
 485         * interp.c (MAX_REG): Allow up-to 128 registers.
 486         (LO1, HI1): Define value that matches REGISTER_NAMES in gdb.
 487         (REGISTER_SA): Ditto.
 488         (sim_open): Initialize register_widths for r5900 specific
 489         registers.
 490         (sim_fetch_register, sim_store_register): Check for request of
 491         r5900 specific SA register.  Check for request for hi 64 bits of
 492         r5900 specific registers.
 493
 494 end-sanitize-r5900
 495 Mon Sep 29 14:45:00 1997  Bob Manson  <manson@charmed.cygnus.com>
 496
 497         * configure: Regenerated.
 498
 499 Fri Sep 26 12:48:18 1997  Mark Alexander  <marka@cygnus.com>
 500
 501         * interp.c: Allow Debug, DEPC, and EPC registers to be examined in GDB.
 502
 503 Thu Sep 25 11:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 504
 505         * gencode.c (print_igen_insn_models): Assume certain architectures
 506         include all mips* instructions.
 507         (print_igen_insn_format): Use data_size==-1 as marker for MIPS16
 508         instruction.
 509
 510         * Makefile.in (tmp.igen): Add target. Generate igen input from
 511         gencode file.
 512
 513         * gencode.c (FEATURE_IGEN): Define.
 514         (main): Add --igen option.  Generate output in igen format.
 515         (process_instructions): Format output according to igen option.
 516         (print_igen_insn_format): New function.
 517         (print_igen_insn_models): New function.
 518         (process_instructions): Only issue warnings and ignore
 519         instructions when no FEATURE_IGEN.
 520
 521 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 522
 523         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
 524         MIPS targets.
 525
 526 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 527
 528         * configure: Regenerated to track ../common/aclocal.m4 changes.
 529
 530 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 531
 532         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
 533         SIM_RESERVED_BITS): Delete, moved to common.
 534         (SIM_EXTRA_CFLAGS): Update.
 535
 536 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 537
 538         * configure.in: Configure non-strict memory alignment.
 539         * configure: Regenerated to track ../common/aclocal.m4 changes.
 540
 541 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 542
 543         * configure: Regenerated to track ../common/aclocal.m4 changes.
 544
 545 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
 546
 547         * gencode.c (SDBBP,DERET): Added (3900) insns.
 548         (RFE): Turn on for 3900.
 549         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
 550         (dsstate): Made global.
 551         (SUBTARGET_R3900): Added.
 552         (CANCELDELAYSLOT): New.
 553         (SignalException): Ignore SystemCall rather than ignore and
 554         terminate.  Add DebugBreakPoint handling.
 555         (decode_coproc): New insns RFE, DERET; and new registers Debug
 556         and DEPC protected by SUBTARGET_R3900.
 557         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
 558         bits explicitly.
 559         * Makefile.in,configure.in: Add mips subtarget option.
 560         * configure: Update.
 561
 562 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
 563
 564         * gencode.c: Add r3900 (tx39).
 565
 566 start-sanitize-tx19
 567         * gencode.c: Fix some configuration problems by improving
 568         the relationship between tx19 and tx39.
 569 end-sanitize-tx19
 570
 571 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
 572
 573         * gencode.c (build_instruction): Don't need to subtract 4 for
 574         JALR, just 2.
 575
 576 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
 577
 578         * interp.c: Correct some HASFPU problems.
 579
 580 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 581
 582         * configure: Regenerated to track ../common/aclocal.m4 changes.
 583
 584 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 585
 586         * interp.c (mips_options): Fix samples option short form, should
 587         be `x'.
 588
 589 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 590
 591         * interp.c (sim_info): Enable info code.  Was just returning.
 592
 593 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 594
 595         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
 596         MFC0.
 597
 598 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 599
 600         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
 601         constants.
 602         (build_instruction): Ditto for LL.
 603
 604 start-sanitize-tx19
 605 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
 606
 607         * mips/configure.in, mips/gencode: Add tx19/r1900.
 608
 609 end-sanitize-tx19
 610 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 611
 612         * configure: Regenerated to track ../common/aclocal.m4 changes.
 613
 614 start-sanitize-r5900
 615 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 616
 617         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
 618         for overflow due to ABS of MININT, set result to MAXINT.
 619         (build_instruction): For "psrlvw", signextend bit 31.
 620
 621 end-sanitize-r5900
 622 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 623
 624         * configure: Regenerated to track ../common/aclocal.m4 changes.
 625         * config.in: Ditto.
 626
 627 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 628
 629         * interp.c (sim_open): Add call to sim_analyze_program, update
 630         call to sim_config.
 631
 632 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 633
 634         * interp.c (sim_kill): Delete.
 635         (sim_create_inferior): Add ABFD argument. Set PC from same.
 636         (sim_load): Move code initializing trap handlers from here.
 637         (sim_open): To here.
 638         (sim_load): Delete, use sim-hload.c.
 639
 640         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 641
 642 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 643
 644         * configure: Regenerated to track ../common/aclocal.m4 changes.
 645         * config.in: Ditto.
 646
 647 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 648
 649         * interp.c (sim_open): Add ABFD argument.
 650         (sim_load): Move call to sim_config from here.
 651         (sim_open): To here.  Check return status.
 652
 653 start-sanitize-r5900
 654         * gencode.c (build_instruction): Do not define x8000000000000000,
 655         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 656
 657 end-sanitize-r5900
 658 start-sanitize-r5900
 659 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 660
 661         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 662         "pdivuw" check for overflow due to signed divide by -1.
 663
 664 end-sanitize-r5900
 665 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 666
 667         * gencode.c (build_instruction): Two arg MADD should
 668         not assign result to $0.
 669
 670 start-sanitize-r5900
 671 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 672
 673         * gencode.c (build_instruction): For "ppac5" use unsigned
 674         arrithmetic so that the sign bit doesn't smear when right shifted.
 675         (build_instruction): For "pdiv" perform sign extension when
 676         storing results in HI and LO.
 677         (build_instructions): For "pdiv" and "pdivbw" check for
 678         divide-by-zero.
 679         (build_instruction): For "pmfhl.slw" update hi part of dest
 680         register as well as low part.
 681         (build_instruction): For "pmfhl" portably handle long long values.
 682         (build_instruction): For "pmfhl.sh" correctly negative values.
 683         Store half words 2 and three in the correct place.
 684         (build_instruction): For "psllvw", sign extend value after shift.
 685
 686 end-sanitize-r5900
 687 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 688
 689         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 690         * sim/mips/configure.in: Regenerate.
 691
 692 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 693
 694         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 695         signed8, unsigned8 et.al. types.
 696
 697 start-sanitize-r5900
 698         * gencode.c (build_instruction): For PMULTU* do not sign extend
 699         registers.  Make generated code easier to debug.
 700
 701 end-sanitize-r5900
 702         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 703         hosts when selecting subreg.
 704
 705 start-sanitize-r5900
 706 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 707
 708         * gencode.c (type_for_data_len): For 32bit operations concerned
 709         with overflow, perform op using 64bits.
 710         (build_instruction): For PADD, always compute operation using type
 711         returned by type_for_data_len.
 712         (build_instruction): For PSUBU, when overflow, saturate to zero as
 713         actually underflow.
 714
 715 end-sanitize-r5900
 716 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 717
 718 start-sanitize-r5900
 719         * gencode.c (build_instruction): Handle "pext5" according to
 720         version 1.95 of the r5900 ISA.
 721
 722         * gencode.c (build_instruction): Handle "ppac5" according to
 723         version 1.95 of the r5900 ISA.
 724
 725 end-sanitize-r5900
 726         * interp.c (sim_engine_run): Reset the ZERO register to zero
 727         regardless of FEATURE_WARN_ZERO.
 728         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 729
 730 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 731
 732         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 733         (SignalException): For BreakPoints ignore any mode bits and just
 734         save the PC.
 735         (SignalException): Always set the CAUSE register.
 736
 737 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 738
 739         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 740         exception has been taken.
 741
 742         * interp.c: Implement the ERET and mt/f sr instructions.
 743
 744 start-sanitize-r5900
 745 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 746
 747         * gencode.c (build_instruction): For paddu, extract unsigned
 748         sub-fields.
 749
 750         * gencode.c (build_instruction): Saturate padds instead of padd
 751         instructions.
 752
 753 end-sanitize-r5900
 754 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 755
 756         * interp.c (SignalException): Don't bother restarting an
 757         interrupt.
 758
 759 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 760
 761         * interp.c (SignalException): Really take an interrupt.
 762         (interrupt_event): Only deliver interrupts when enabled.
 763
 764 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 765
 766         * interp.c (sim_info): Only print info when verbose.
 767         (sim_info) Use sim_io_printf for output.
 768
 769 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 770
 771         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 772         mips architectures.
 773
 774 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 775
 776         * interp.c (sim_do_command): Check for common commands if a
 777         simulator specific command fails.
 778
 779 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 780
 781         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 782         and simBE when DEBUG is defined.
 783
 784 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 785
 786         * interp.c (interrupt_event): New function.  Pass exception event
 787         onto exception handler.
 788
 789         * configure.in: Check for stdlib.h.
 790         * configure: Regenerate.
 791
 792         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 793         variable declaration.
 794         (build_instruction): Initialize memval1.
 795         (build_instruction): Add UNUSED attribute to byte, bigend,
 796         reverse.
 797         (build_operands): Ditto.
 798
 799         * interp.c: Fix GCC warnings.
 800         (sim_get_quit_code): Delete.
 801
 802         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 803         * Makefile.in: Ditto.
 804         * configure: Re-generate.
 805
 806         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 807
 808 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 809
 810         * interp.c (mips_option_handler): New function parse argumes using
 811         sim-options.
 812         (myname): Replace with STATE_MY_NAME.
 813         (sim_open): Delete check for host endianness - performed by
 814         sim_config.
 815         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 816         (sim_open): Move much of the initialization from here.
 817         (sim_load): To here.  After the image has been loaded and
 818         endianness set.
 819         (sim_open): Move ColdReset from here.
 820         (sim_create_inferior): To here.
 821         (sim_open): Make FP check less dependant on host endianness.
 822
 823         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 824         run.
 825         * interp.c (sim_set_callbacks): Delete.
 826
 827         * interp.c (membank, membank_base, membank_size): Replace with
 828         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 829         (sim_open): Remove call to callback->init. gdb/run do this.
 830
 831         * interp.c: Update
 832
 833         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 834
 835         * interp.c (big_endian_p): Delete, replaced by
 836         current_target_byte_order.
 837
 838 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 839
 840         * interp.c (host_read_long, host_read_word, host_swap_word,
 841         host_swap_long): Delete. Using common sim-endian.
 842         (sim_fetch_register, sim_store_register): Use H2T.
 843         (pipeline_ticks): Delete.  Handled by sim-events.
 844         (sim_info): Update.
 845         (sim_engine_run): Update.
 846
 847 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 848
 849         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 850         reason from here.
 851         (SignalException): To here. Signal using sim_engine_halt.
 852         (sim_stop_reason): Delete, moved to common.
 853
 854 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 855
 856         * interp.c (sim_open): Add callback argument.
 857         (sim_set_callbacks): Delete SIM_DESC argument.
 858         (sim_size): Ditto.
 859
 860 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 861
 862         * Makefile.in (SIM_OBJS): Add common modules.
 863
 864         * interp.c (sim_set_callbacks): Also set SD callback.
 865         (set_endianness, xfer_*, swap_*): Delete.
 866         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 867         Change to functions using sim-endian macros.
 868         (control_c, sim_stop): Delete, use common version.
 869         (simulate): Convert into.
 870         (sim_engine_run): This function.
 871         (sim_resume): Delete.
 872
 873         * interp.c (simulation): New variable - the simulator object.
 874         (sim_kind): Delete global - merged into simulation.
 875         (sim_load): Cleanup.  Move PC assignment from here.
 876         (sim_create_inferior): To here.
 877
 878         * sim-main.h: New file.
 879         * interp.c (sim-main.h): Include.
 880
 881 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 882
 883         * configure: Regenerated to track ../common/aclocal.m4 changes.
 884
 885 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 886
 887         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 888
 889 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 890
 891         * gencode.c (build_instruction): DIV instructions: check
 892         for division by zero and integer overflow before using
 893         host's division operation.
 894
 895 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 896
 897         * Makefile.in (SIM_OBJS): Add sim-load.o.
 898         * interp.c: #include bfd.h.
 899         (target_byte_order): Delete.
 900         (sim_kind, myname, big_endian_p): New static locals.
 901         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 902         after argument parsing.  Recognize -E arg, set endianness accordingly.
 903         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 904         load file into simulator.  Set PC from bfd.
 905         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 906         (set_endianness): Use big_endian_p instead of target_byte_order.
 907
 908 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 909
 910         * interp.c (sim_size): Delete prototype - conflicts with
 911         definition in remote-sim.h.  Correct definition.
 912
 913 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 914
 915         * configure: Regenerated to track ../common/aclocal.m4 changes.
 916         * config.in: Ditto.
 917
 918 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 919
 920         * interp.c (sim_open): New arg `kind'.
 921
 922         * configure: Regenerated to track ../common/aclocal.m4 changes.
 923
 924 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 925
 926         * configure: Regenerated to track ../common/aclocal.m4 changes.
 927
 928 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 929
 930         * interp.c (sim_open): Set optind to 0 before calling getopt.
 931
 932 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 933
 934         * configure: Regenerated to track ../common/aclocal.m4 changes.
 935
 936 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 937
 938         * interp.c : Replace uses of pr_addr with pr_uword64
 939         where the bit length is always 64 independent of SIM_ADDR.
 940         (pr_uword64) : added.
 941
 942 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 943
 944         * configure: Re-generate.
 945
 946 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 947
 948         * configure: Regenerate to track ../common/aclocal.m4 changes.
 949
 950 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 951
 952         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 953         in argv form.
 954         (other sim_*): New SIM_DESC argument.
 955
 956 start-sanitize-r5900
 957 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 958
 959         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 960         Change values to avoid overloading DOUBLEWORD which is tested
 961         for all insns.
 962         * gencode.c: reinstate "offending code".
 963
 964 end-sanitize-r5900
 965 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 966
 967         * interp.c: Fix printing of addresses for non-64-bit targets.
 968         (pr_addr): Add function to print address based on size.
 969 start-sanitize-r5900
 970         * gencode.c: #ifdef out offending code until a permanent fix
 971         can be added.  Code is causing build errors for non-5900 mips targets.
 972 end-sanitize-r5900
 973
 974 start-sanitize-r5900
 975 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 976
 977         * gencode.c (process_instructions): Correct test for ISA dependent
 978         architecture bits in isa field of MIPS_DECODE.
 979
 980 end-sanitize-r5900
 981 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 982
 983         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 984
 985 start-sanitize-r5900
 986 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 987
 988         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 989         PMADDUW.
 990
 991 end-sanitize-r5900
 992 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 993
 994         * gencode.c (build_mips16_operands): Correct computation of base
 995         address for extended PC relative instruction.
 996
 997 start-sanitize-r5900
 998 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 999
1000         * Makefile.in, configure, configure.in, gencode.c,
1001         interp.c, support.h: add r5900.
1002
1003 end-sanitize-r5900
1004 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
1005
1006         * interp.c (mips16_entry): Add support for floating point cases.
1007         (SignalException): Pass floating point cases to mips16_entry.
1008         (ValueFPR): Don't restrict fmt_single and fmt_word to even
1009         registers.
1010         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
1011         or fmt_word.
1012         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
1013         and then set the state to fmt_uninterpreted.
1014         (COP_SW): Temporarily set the state to fmt_word while calling
1015         ValueFPR.
1016
1017 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
1018
1019         * gencode.c (build_instruction): The high order may be set in the
1020         comparison flags at any ISA level, not just ISA 4.
1021
1022 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
1023
1024         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
1025         COMMON_{PRE,POST}_CONFIG_FRAG instead.
1026         * configure.in: sinclude ../common/aclocal.m4.
1027         * configure: Regenerated.
1028
1029 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
1030
1031         * configure: Rebuild after change to aclocal.m4.
1032
1033 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
1034
1035         * configure configure.in Makefile.in:  Update to new configure
1036         scheme which is more compatible with WinGDB builds.
1037         * configure.in:  Improve comment on how to run autoconf.
1038         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
1039         * Makefile.in:  Use autoconf substitution to install common
1040         makefile fragment.
1041
1042 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
1043
1044         * gencode.c (build_instruction): Use BigEndianCPU instead of
1045         ByteSwapMem.
1046
1047 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
1048
1049         * interp.c (sim_monitor): Make output to stdout visible in
1050         wingdb's I/O log window.
1051
1052 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
1053
1054         * support.h: Undo previous change to SIGTRAP
1055         and SIGQUIT values.
1056
1057 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
1058
1059         * interp.c (store_word, load_word): New static functions.
1060         (mips16_entry): New static function.
1061         (SignalException): Look for mips16 entry and exit instructions.
1062         (simulate): Use the correct index when setting fpr_state after
1063         doing a pending move.
1064
1065 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
1066
1067         * interp.c: Fix byte-swapping code throughout to work on
1068         both little- and big-endian hosts.
1069
1070 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
1071
1072         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
1073         with gdb/config/i386/xm-windows.h.
1074
1075 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
1076
1077         * gencode.c (build_instruction): Work around MSVC++ code gen bug
1078         that messes up arithmetic shifts.
1079
1080 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
1081
1082         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
1083         SIGTRAP and SIGQUIT for _WIN32.
1084
1085 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
1086
1087         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
1088         force a 64 bit multiplication.
1089         (build_instruction) [OR]: In mips16 mode, don't do anything if the
1090         destination register is 0, since that is the default mips16 nop
1091         instruction.
1092
1093 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
1094
1095         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
1096         (build_endian_shift): Don't check proc64.
1097         (build_instruction): Always set memval to uword64.  Cast op2 to
1098         uword64 when shifting it left in memory instructions.  Always use
1099         the same code for stores--don't special case proc64.
1100
1101         * gencode.c (build_mips16_operands): Fix base PC value for PC
1102         relative operands.
1103         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
1104         jal instruction.
1105         * interp.c (simJALDELAYSLOT): Define.
1106         (JALDELAYSLOT): Define.
1107         (INDELAYSLOT, INJALDELAYSLOT): Define.
1108         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
1109
1110 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
1111
1112         * interp.c (sim_open): add flush_cache as a PMON routine
1113         (sim_monitor): handle flush_cache by ignoring it
1114
1115 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
1116
1117         * gencode.c (build_instruction): Use !ByteSwapMem instead of
1118         BigEndianMem.
1119         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
1120         (BigEndianMem): Rename to ByteSwapMem and change sense.
1121         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
1122         BigEndianMem references to !ByteSwapMem.
1123         (set_endianness): New function, with prototype.
1124         (sim_open): Call set_endianness.
1125         (sim_info): Use simBE instead of BigEndianMem.
1126         (xfer_direct_word, xfer_direct_long, swap_direct_word,
1127         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
1128         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
1129         ifdefs, keeping the prototype declaration.
1130         (swap_word): Rewrite correctly.
1131         (ColdReset): Delete references to CONFIG.  Delete endianness related
1132         code; moved to set_endianness.
1133
1134 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
1135
1136         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
1137         * interp.c (CHECKHILO): Define away.
1138         (simSIGINT): New macro.
1139         (membank_size): Increase from 1MB to 2MB.
1140         (control_c): New function.
1141         (sim_resume): Rename parameter signal to signal_number.  Add local
1142         variable prev.  Call signal before and after simulate.
1143         (sim_stop_reason): Add simSIGINT support.
1144         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
1145         functions always.
1146         (sim_warning): Delete call to SignalException.  Do call printf_filtered
1147         if logfh is NULL.
1148         (AddressTranslation): Add #ifdef DEBUG around debugging message and
1149         a call to sim_warning.
1150
1151 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
1152
1153         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
1154         16 bit instructions.
1155
1156 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1157
1158         Add support for mips16 (16 bit MIPS implementation):
1159         * gencode.c (inst_type): Add mips16 instruction encoding types.
1160         (GETDATASIZEINSN): Define.
1161         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
1162         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
1163         mtlo.
1164         (MIPS16_DECODE): New table, for mips16 instructions.
1165         (bitmap_val): New static function.
1166         (struct mips16_op): Define.
1167         (mips16_op_table): New table, for mips16 operands.
1168         (build_mips16_operands): New static function.
1169         (process_instructions): If PC is odd, decode a mips16
1170         instruction.  Break out instruction handling into new
1171         build_instruction function.
1172         (build_instruction): New static function, broken out of
1173         process_instructions.  Check modifiers rather than flags for SHIFT
1174         bit count and m[ft]{hi,lo} direction.
1175         (usage): Pass program name to fprintf.
1176         (main): Remove unused variable this_option_optind.  Change
1177         ``*loptarg++'' to ``loptarg++''.
1178         (my_strtoul): Parenthesize && within ||.
1179         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
1180         (simulate): If PC is odd, fetch a 16 bit instruction, and
1181         increment PC by 2 rather than 4.
1182         * configure.in: Add case for mips16*-*-*.
1183         * configure: Rebuild.
1184
1185 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
1186
1187         * interp.c: Allow -t to enable tracing in standalone simulator.
1188         Fix garbage output in trace file and error messages.
1189
1190 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
1191
1192         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
1193         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
1194         * configure.in: Simplify using macros in ../common/aclocal.m4.
1195         * configure: Regenerated.
1196         * tconfig.in: New file.
1197
1198 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
1199
1200         * interp.c: Fix bugs in 64-bit port.
1201         Use ansi function declarations for msvc compiler.
1202         Initialize and test file pointer in trace code.
1203         Prevent duplicate definition of LAST_EMED_REGNUM.
1204
1205 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
1206
1207         * interp.c (xfer_big_long): Prevent unwanted sign extension.
1208
1209 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
1210
1211         * interp.c (SignalException): Check for explicit terminating
1212         breakpoint value.
1213         * gencode.c: Pass instruction value through SignalException()
1214         calls for Trap, Breakpoint and Syscall.
1215
1216 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1217
1218         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
1219         only used on those hosts that provide it.
1220         * configure.in: Add sqrt() to list of functions to be checked for.
1221         * config.in: Re-generated.
1222         * configure: Re-generated.
1223
1224 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1225
1226         * gencode.c (process_instructions): Call build_endian_shift when
1227         expanding STORE RIGHT, to fix swr.
1228         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
1229         clear the high bits.
1230         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
1231         Fix float to int conversions to produce signed values.
1232
1233 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
1234
1235         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
1236         (process_instructions): Correct handling of nor instruction.
1237         Correct shift count for 32 bit shift instructions. Correct sign
1238         extension for arithmetic shifts to not shift the number of bits in
1239         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
1240         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
1241         Fix madd.
1242         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
1243         It's OK to have a mult follow a mult.  What's not OK is to have a
1244         mult follow an mfhi.
1245         (Convert): Comment out incorrect rounding code.
1246
1247 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
1248
1249         * interp.c (sim_monitor): Improved monitor printf
1250         simulation. Tidied up simulator warnings, and added "--log" option
1251         for directing warning message output.
1252         * gencode.c: Use sim_warning() rather than WARNING macro.
1253
1254 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1255
1256         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
1257         getopt1.o, rather than on gencode.c.  Link objects together.
1258         Don't link against -liberty.
1259         (gencode.o, getopt.o, getopt1.o): New targets.
1260         * gencode.c: Include <ctype.h> and "ansidecl.h".
1261         (AND): Undefine after including "ansidecl.h".
1262         (ULONG_MAX): Define if not defined.
1263         (OP_*): Don't define macros; now defined in opcode/mips.h.
1264         (main): Call my_strtoul rather than strtoul.
1265         (my_strtoul): New static function.
1266
1267 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
1268
1269         * gencode.c (process_instructions):  Generate word64 and uword64
1270         instead of `long long' and `unsigned long long' data types.
1271         * interp.c:  #include sysdep.h to get signals, and define default
1272         for SIGBUS.
1273         * (Convert):  Work around for Visual-C++ compiler bug with type
1274         conversion.
1275         * support.h:  Make things compile under Visual-C++ by using
1276         __int64 instead of `long long'.  Change many refs to long long
1277         into word64/uword64 typedefs.
1278
1279 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
1280
1281         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
1282         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
1283         (docdir): Removed.
1284         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
1285         (AC_PROG_INSTALL): Added.
1286         (AC_PROG_CC): Moved to before configure.host call.
1287         * configure: Rebuilt.
1288
1289 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
1290
1291         * configure.in: Define @SIMCONF@ depending on mips target.
1292         * configure: Rebuild.
1293         * Makefile.in (run): Add @SIMCONF@ to control simulator
1294         construction.
1295         * gencode.c: Change LOADDRMASK to 64bit memory model only.
1296         * interp.c: Remove some debugging, provide more detailed error
1297         messages, update memory accesses to use LOADDRMASK.
1298
1299 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
1300
1301         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
1302         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
1303         stamp-h.
1304         * configure: Rebuild.
1305         * config.in: New file, generated by autoheader.
1306         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
1307         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
1308         HAVE_ANINT and HAVE_AINT, as appropriate.
1309         * Makefile.in (run): Use @LIBS@ rather than -lm.
1310         (interp.o): Depend upon config.h.
1311         (Makefile): Just rebuild Makefile.
1312         (clean): Remove stamp-h.
1313         (mostlyclean): Make the same as clean, not as distclean.
1314         (config.h, stamp-h): New targets.
1315
1316 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1317
1318         * interp.c (ColdReset): Fix boolean test. Make all simulator
1319         globals static.
1320
1321 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
1322
1323         * interp.c (xfer_direct_word, xfer_direct_long,
1324         swap_direct_word, swap_direct_long, xfer_big_word,
1325         xfer_big_long, xfer_little_word, xfer_little_long,
1326         swap_word,swap_long): Added.
1327         * interp.c (ColdReset): Provide function indirection to
1328         host<->simulated_target transfer routines.
1329         * interp.c (sim_store_register, sim_fetch_register): Updated to
1330         make use of indirected transfer routines.
1331
1332 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
1333
1334         * gencode.c (process_instructions): Ensure FP ABS instruction
1335         recognised.
1336         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
1337         system call support.
1338
1339 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
1340
1341         * interp.c (sim_do_command): Complain if callback structure not
1342         initialised.
1343
1344 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
1345
1346         * interp.c (Convert): Provide round-to-nearest and round-to-zero
1347         support for Sun hosts.
1348         * Makefile.in (gencode): Ensure the host compiler and libraries
1349         used for cross-hosted build.
1350
1351 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
1352
1353         * interp.c, gencode.c: Some more (TODO) tidying.
1354
1355 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
1356
1357         * gencode.c, interp.c: Replaced explicit long long references with
1358         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
1359         * support.h (SET64LO, SET64HI): Macros added.
1360
1361 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
1362
1363         * configure: Regenerate with autoconf 2.7.
1364
1365 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
1366
1367         * interp.c (LoadMemory): Enclose text following #endif in /* */.
1368         * support.h: Remove superfluous "1" from #if.
1369         * support.h (CHECKSIM): Remove stray 'a' at end of line.
1370
1371 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
1372
1373         * interp.c (StoreFPR): Control UndefinedResult() call on
1374         WARN_RESULT manifest.
1375
1376 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
1377
1378         * gencode.c: Tidied instruction decoding, and added FP instruction
1379         support.
1380
1381         * interp.c: Added dineroIII, and BSD profiling support. Also
1382         run-time FP handling.
1383
1384 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
1385
1386         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
1387         gencode.c, interp.c, support.h: created.