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