sim/mips/ChangeLog

   1 Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
   2
   3         * configure: Regenerated to track ../common/aclocal.m4 changes.
   4
   5 Mon Jan  5 20:38:54 1998  Mark Alexander  <marka@cygnus.com>
   6
   7         * interp.c (sim_monitor): Handle Densan monitor outbyte
   8         and inbyte functions.
   9
  10 1997-12-29  Felix Lee  <flee@cygnus.com>
  11
  12         * interp.c (sim_engine_run): msvc cpp barfs on #if (a==b!=c).
  13
  14 Wed Dec 17 14:48:20 1997  Jeffrey A Law  (law@cygnus.com)
  15
  16         * Makefile.in (tmp-igen): Arrange for $zero to always be
  17         reset to zero after every instruction.
  18
  19 Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  20
  21         * configure: Regenerated to track ../common/aclocal.m4 changes.
  22         * config.in: Ditto.
  23
  24 start-sanitize-vr5400
  25 Sat Dec 13 15:18:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  26
  27         * vr5400.igen (Low32Bits, High32Bits): Sign extend extracted 32
  28         bit values.
  29
  30 end-sanitize-vr5400
  31 start-sanitize-vr5400
  32 Fri Dec 12 12:26:07 1997  Jeffrey A Law  (law@cygnus.com)
  33
  34         * configure.in (sim_igen_filter): Multi-sim vr5000 - vr5000 or
  35         vr5400 with the vr5000 as the default.
  36
  37 end-sanitize-vr5400
  38 Wed Dec 10 17:10:45 1997  Jeffrey A Law  (law@cygnus.com)
  39
  40         * mips.igen (MSUB): Fix to work like MADD.
  41         * gencode.c (MSUB): Similarly.
  42
  43 start-sanitize-vr5400
  44 Tue Dec  9 12:02:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  45
  46         * configure.in (sim_igen_filter): Multi-sim vr5400 - vr5000 or
  47         vr5400.
  48
  49 end-sanitize-vr5400
  50 Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
  51
  52         * configure: Regenerated to track ../common/aclocal.m4 changes.
  53
  54 Wed Nov 26 11:00:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  55
  56         * mips.igen (LWC1): Correct assembler - lwc1 not swc1.
  57
  58 start-sanitize-vr5400
  59         * mdmx.igen (value_vr): Correct sim_io_eprintf format argument.
  60         (value_cc, store_cc): Implement.
  61
  62         * sim-main.h: Add 8*3*8 bit accumulator.
  63
  64         * vr5400.igen: Move mdmx instructins from here
  65         * mdmx.igen: To here - new file. Add/fix missing instructions.
  66         * mips.igen: Include mdmx.igen.
  67         * Makefile.in (IGEN_INCLUDE): Add mdmx.igen.
  68
  69 end-sanitize-vr5400
  70 Sun Nov 23 01:45:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  71
  72         * sim-main.h (sim-fpu.h): Include.
  73
  74         * interp.c (convert, SquareRoot, Recip, Divide, Multiply, Sub,
  75         Add, Negate, AbsoluteValue, Equal, Less, Infinity, NaN): Rewrite
  76         using host independant sim_fpu module.
  77
  78 Thu Nov 20 19:56:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  79
  80         * interp.c (signal_exception): Report internal errors with SIGABRT
  81         not SIGQUIT.
  82
  83         * sim-main.h (C0_CONFIG): New register.
  84         (signal.h): No longer include.
  85
  86         * interp.c (decode_coproc): Allow access C0_CONFIG to register.
  87
  88 Tue Nov 18 15:33:48 1997  Doug Evans  <devans@canuck.cygnus.com>
  89
  90         * Makefile.in (SIM_OBJS): Use $(SIM_NEW_COMMON_OBJS).
  91
  92 Fri Nov 14 11:56:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  93
  94         * mips.igen: Tag vr5000 instructions.
  95         (ANDI): Was missing mipsIV model, fix assembler syntax.
  96         (do_c_cond_fmt): New function.
  97         (C.cond.fmt): Handle mips I-III which do not support CC field
  98         separatly.
  99         (bc1): Handle mips IV which do not have a delaed FCC separatly.
 100         (SDR): Mask paddr when BigEndianMem, not the converse as specified
 101         in IV3.2 spec.
 102         (DMULT, DMULTU): Force use of hosts 64bit multiplication.  Handle
 103         vr5000 which saves LO in a GPR separatly.
 104
 105         * configure.in (enable-sim-igen): For vr5000, select vr5000
 106         specific instructions.
 107         * configure: Re-generate.
 108
 109 Wed Nov 12 14:42:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 110
 111         * Makefile.in (SIM_OBJS): Add sim-fpu module.
 112
 113         * interp.c (store_fpr), sim-main.h: Add separate fmt_uninterpreted_32 and
 114         fmt_uninterpreted_64 bit cases to switch.  Convert to
 115         fmt_formatted,
 116
 117         * sim-main.h (ENGINE_ISSUE_PREFIX_HOOK): Define,
 118
 119         * mips.igen (SWR): Mask paddr when BigEndianMem, not the converse
 120         as specified in IV3.2 spec.
 121         (MTC1, DMTC1): Call StoreFPR to store the GPR in the FPR.
 122
 123 Tue Nov 11 12:38:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 124
 125         * mips.igen: Delay slot branches add OFFSET to NIA not CIA.
 126         (MFC0, MTC0, SWC1, LWC1, SDC1, LDC1): Implement.
 127         (start-sanitize-r5900):
 128         (LWXC1, SWXC1): Delete from r5900 instruction set.
 129         (end-sanitize-r5900):
 130         (MTC1, MFC1, DMTC1, DMFC1, CFC1, CTC1): Implement separate non
 131         PENDING_FILL versions of instructions.  Simplify.
 132         (X): New function.
 133         (MULT, MULTU): Implement separate RD==0 and RD!=0 versions of
 134         instructions.
 135         (BEQZ, ..., SLT, SLTI, TLT, TLE, TLI, ...): Explicitly cast GPR to
 136         a signed value.
 137         (MTHI, MFHI): Disable code checking HI-LO.
 138
 139         * sim-main.h (dotrace,tracefh), interp.c: Make dotrace & tracefh
 140         global.
 141         (NULLIFY_NEXT_INSTRUCTION): Call dotrace.
 142
 143 Thu Nov  6 16:36:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 144
 145         * gencode.c (build_mips16_operands): Replace IPC with cia.
 146
 147         * interp.c (sim_monitor, signal_exception, cache_op, store_fpr,
 148         value_fpr, cop_ld, cop_lw, cop_sw, cop_sd, decode_coproc): Replace
 149         IPC to `cia'.
 150         (UndefinedResult): Replace function with macro/function
 151         combination.
 152         (sim_engine_run): Don't save PC in IPC.
 153
 154         * sim-main.h (IPC): Delete.
 155
 156         start-sanitize-vr5400
 157         * vr5400.igen (vr): Add missing cia argument to value_fpr.
 158         (do_select): Rename function select.
 159         end-sanitize-vr5400
 160
 161         * interp.c (signal_exception, store_word, load_word,
 162         address_translation, load_memory, store_memory, cache_op,
 163         prefetch, sync_operation, ifetch, value_fpr, store_fpr, convert,
 164         cop_lw, cop_ld, cop_sw, cop_sd, decode_coproc, sim_monitor): Add
 165         current instruction address - cia - argument.
 166         (sim_read, sim_write): Call address_translation directly.
 167         (sim_engine_run): Rename variable vaddr to cia.
 168         (signal_exception): Pass cia to sim_monitor
 169
 170         * sim-main.h (SignalException, LoadWord, StoreWord, CacheOp,
 171         Prefetch, SyncOperation, ValueFPR, StoreFPR, Convert, COP_LW,
 172         COP_LD, COP_SW, COP_SD, DecodeCoproc): Update.
 173
 174         * sim-main.h (SignalExceptionSimulatorFault): Delete definition.
 175         * interp.c (sim_open): Replace SignalExceptionSimulatorFault with
 176         SIM_ASSERT.
 177
 178         * interp.c (signal_exception): Pass restart address to
 179         sim_engine_restart.
 180
 181         * Makefile.in (semantics.o, engine.o, support.o, itable.o,
 182         idecode.o): Add dependency.
 183
 184         * sim-main.h (SIM_ENGINE_HALT_HOOK, SIM_ENGINE_RESUME_HOOK):
 185         Delete definitions
 186         (DELAY_SLOT): Update NIA not PC with branch address.
 187         (NULLIFY_NEXT_INSTRUCTION): Set NIA to instruction after next.
 188
 189         * mips.igen: Use CIA not PC in branch calculations.
 190         (illegal): Call SignalException.
 191         (BEQ, ADDIU): Fix assembler.
 192
 193 Wed Nov  5 12:19:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 194
 195         * m16.igen (JALX): Was missing.
 196
 197         * configure.in (enable-sim-igen): New configuration option.
 198         * configure: Re-generate.
 199
 200         * sim-main.h (MAX_INSNS, INSN_NAME): Define.
 201
 202         * interp.c (load_memory, store_memory): Delete parameter RAW.
 203         (sim_read, sim_write): Use sim_core_{read,write}_buffer directly
 204         bypassing {load,store}_memory.
 205
 206         * sim-main.h (ByteSwapMem): Delete definition.
 207
 208         * Makefile.in (SIM_OBJS): Add sim-memopt module.
 209
 210         * interp.c (sim_do_command, sim_commands): Delete mips specific
 211         commands.  Handled by module sim-options.
 212
 213         * sim-main.h (SIM_HAVE_FLATMEM): Undefine, use sim-core.o module.
 214         (WITH_MODULO_MEMORY): Define.
 215
 216         * interp.c (sim_info): Delete code printing memory size.
 217
 218         * interp.c (mips_size): Nee sim_size, delete function.
 219         (power2): Delete.
 220         (monitor, monitor_base, monitor_size): Delete global variables.
 221         (sim_open, sim_close): Delete code creating monitor and other
 222         memory regions.  Use sim-memopts module, via sim_do_commandf, to
 223         manage memory regions.
 224         (load_memory, store_memory): Use sim-core for memory model.
 225
 226         * interp.c (address_translation): Delete all memory map code
 227         except line forcing 32 bit addresses.
 228
 229 Wed Nov  5 11:21:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 230
 231         * sim-main.h (WITH_TRACE): Delete definition.  Enables common
 232         trace options.
 233
 234         * interp.c (logfh, logfile): Delete globals.
 235         (sim_open, sim_close): Delete code opening & closing log file.
 236         (mips_option_handler): Delete -l and -n options.
 237         (OPTION mips_options): Ditto.
 238
 239         * interp.c (OPTION mips_options): Rename option trace to dinero.
 240         (mips_option_handler): Update.
 241
 242 Wed Nov  5 09:35:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 243
 244         * interp.c (fetch_str): New function.
 245         (sim_monitor): Rewrite using sim_read & sim_write.
 246         (sim_open): Check magic number.
 247         (sim_open): Write monitor vectors into memory using sim_write.
 248         (MONITOR_BASE, MONITOR_SIZE, MEM_SIZE): Define.
 249         (sim_read, sim_write): Simplify - transfer data one byte at a
 250         time.
 251         (load_memory, store_memory): Clarify meaning of parameter RAW.
 252
 253         * sim-main.h (isHOST): Defete definition.
 254         (isTARGET): Mark as depreciated.
 255         (address_translation): Delete parameter HOST.
 256
 257         * interp.c (address_translation): Delete parameter HOST.
 258
 259 start-sanitize-tx49
 260 Wed Oct 29 14:21:32 1997  Gavin Koch  <gavin@cygnus.com>
 261
 262         * gencode.c: Add tx49 configury and insns.
 263         * configure.in: Add tx49 configury.
 264         * configure: Update.
 265
 266 end-sanitize-tx49
 267 Wed Oct 29 11:13:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 268
 269         * mips.igen:
 270
 271         * Makefile.in (IGEN_INCLUDE): Files included by mips.igen.
 272         (tmp-igen, tmp-m16): Depend on IGEN_INCLUDE.
 273
 274 Tue Oct 28 11:06:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 275
 276         * mips.igen: Add model filter field to records.
 277
 278 Mon Oct 27 17:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 279
 280         * Makefile.in (SIM_NO_CFLAGS): Define.  Define WITH_IGEN=0.
 281
 282         interp.c (sim_engine_run): Do not compile function sim_engine_run
 283         when WITH_IGEN == 1.
 284
 285         * configure.in (sim_igen_flags, sim_m16_flags): Set according to
 286         target architecture.
 287
 288         Makefile.in (tmp-igen, tmp-m16): Drop -F and -M options to
 289         igen. Replace with configuration variables sim_igen_flags /
 290         sim_m16_flags.
 291
 292         start-sanitize-r5900
 293         * r5900.igen: New file. Copy r5900 insns here.
 294         end-sanitize-r5900
 295         start-sanitize-vr5400
 296         * vr5400.igen: New file.
 297         end-sanitize-vr5400
 298         * m16.igen: New file.  Copy mips16 insns here.
 299         * mips.igen: From here.
 300
 301 Mon Oct 27 13:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 302
 303         start-sanitize-vr5400
 304         * mips.igen: Tag all mipsIV instructions with vr5400 model.
 305
 306         * configure.in: Add mips64vr5400 target.
 307         * configure: Re-generate.
 308
 309         end-sanitize-vr5400
 310         * Makefile.in (SIM_NO_OBJ): Define, move SIM_M16_OBJ, SIM_IGEN_OBJ
 311         to top.
 312         (tmp-igen, tmp-m16): Pass -I srcdir to igen.
 313
 314 Sat Oct 25 16:51:40 1997  Gavin Koch  <gavin@cygnus.com>
 315
 316         * gencode.c (build_instruction): Follow sim_write's lead in using
 317         BigEndianMem instead of !ByteSwapMem.
 318
 319 Fri Oct 24 17:41:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 320
 321         * configure.in (sim_gen): Dependent on target, select type of
 322         generator.  Always select old style generator.
 323
 324         configure: Re-generate.
 325
 326         Makefile.in (tmp-igen, tmp-m16, clean-m16, clean-igen): New
 327         targets.
 328         (SIM_M16_CFLAGS, SIM_M16_ALL, SIM_M16_OBJ, BUILT_SRC_FROM_M16,
 329         SIM_IGEN_CFLAGS, SIM_IGEN_ALL, SIM_IGEN_OBJ, BUILT_SRC_FROM_IGEN,
 330         IGEN_TRACE, IGEN_INSN, IGEN_DC): Define
 331         (SIM_EXTRA_CFLAGS, SIM_EXTRA_ALL, SIM_OBJS): Add member
 332         SIM_@sim_gen@_*, set by autoconf.
 333
 334 Wed Oct 22 12:52:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 335
 336         * sim-main.h (NULLIFY_NEXT_INSTRUCTION, DELAY_SLOT): Define.
 337
 338         * interp.c (ColdReset): Remove #ifdef HASFPU, check
 339         CURRENT_FLOATING_POINT instead.
 340
 341         * interp.c (ifetch32): New function. Fetch 32 bit instruction.
 342         (address_translation): Raise exception InstructionFetch when
 343         translation fails and isINSTRUCTION.
 344
 345         * interp.c (sim_open, sim_write, sim_monitor, store_word,
 346         sim_engine_run): Change type of of vaddr and paddr to
 347         address_word.
 348         (address_translation, prefetch, load_memory, store_memory,
 349         cache_op): Change type of vAddr and pAddr to address_word.
 350
 351         * gencode.c (build_instruction): Change type of vaddr and paddr to
 352         address_word.
 353
 354 Mon Oct 20 15:29:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 355
 356         * sim-main.h (ALU64_END, ALU32_END): Use ALU*_OVERFLOW_RESULT
 357         macro to obtain result of ALU op.
 358
 359 Tue Oct 21 17:39:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 360
 361         * interp.c (sim_info): Call profile_print.
 362
 363 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 364
 365         * Makefile.in (SIM_OBJS): Add sim-profile.o module.
 366
 367         * sim-main.h (WITH_PROFILE): Do not define, defined in
 368         common/sim-config.h.  Use sim-profile module.
 369         (simPROFILE): Delete defintion.
 370
 371         * interp.c (PROFILE): Delete definition.
 372         (mips_option_handler): Delete 'p', 'y' and 'x' profile options.
 373         (sim_close): Delete code writing profile histogram.
 374         (mips_set_profile, mips_set_profile_size, writeout16, writeout32):
 375         Delete.
 376         (sim_engine_run): Delete code profiling the PC.
 377
 378 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 379
 380         * sim-main.h (SIGNEXTEND): Force type of result to unsigned_word.
 381
 382         * interp.c (sim_monitor): Make register pointers of type
 383         unsigned_word*.
 384
 385         * sim-main.h: Make registers of type unsigned_word not
 386         signed_word.
 387
 388 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 389
 390 start-sanitize-r5900
 391         * sim-main.h (BYTES_IN_MMI_REGS, ..., SUB_REG_FETCH, ..., GPR_SB,
 392         ...): Move to sim-main.h
 393
 394 end-sanitize-r5900
 395         * interp.c (sync_operation): Rename from SyncOperation, make
 396         global, add SD argument.
 397         (prefetch): Rename from Prefetch, make global, add SD argument.
 398         (decode_coproc): Make global.
 399
 400         * sim-main.h (SyncOperation, DecodeCoproc, Pefetch): Define.
 401
 402         * gencode.c (build_instruction): Generate DecodeCoproc not
 403         decode_coproc calls.
 404
 405         * interp.c (SETFCC, GETFCC, PREVCOC1): Move to sim-main.h
 406         (SizeFGR): Move to sim-main.h
 407         (simHALTEX, simHALTIN, simTRACE, simPROFILE, simDELAYSLOT,
 408         simSIGINT, simJALDELAYSLOT): Move to sim-main.h
 409         (FP_FLAGS, FP_ENABLE, FP_CAUSE, IR, UF, OF, DZ, IO, UO): Move to
 410         sim-main.h.
 411         (FP_FS, FP_MASK_RM, FP_SH_RM, FP_RM_NEAREST, FP_RM_TOPINF,
 412         FP_RM_TOMINF, GETRM): Move to sim-main.h.
 413         (Uncached, CachedNoncoherent, CachedCoherent, Cached,
 414         isINSTRUCTION, ..., AccessLength_BYTE, ...): Move to sim-main.h.
 415         (UserMode, BigEndianMem, ByteSwapMem, ReverseEndian,
 416         BigEndianCPU, status_KSU_mask, ...). Moved to sim-main.h
 417
 418         * sim-main.h (ALU32_END, ALU64_END): Define. When overflow raise
 419         exception.
 420         (sim-alu.h): Include.
 421         (NULLIFY_NIA, NULL_CIA, CPU_CIA): Define.
 422         (sim_cia): Typedef to instruction_address.
 423
 424 Thu Oct 16 10:31:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 425
 426         * Makefile.in (interp.o): Rename generated file engine.c to
 427         oengine.c.
 428
 429         * interp.c: Update.
 430
 431 Thu Oct 16 10:31:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 432
 433         * gencode.c (build_instruction): Use FPR_STATE not fpr_state.
 434
 435 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 436
 437         * gencode.c (build_instruction): For "FPSQRT", output correct
 438         number of arguments to Recip.
 439
 440 Tue Oct 14 17:38:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 441
 442         * Makefile.in (interp.o): Depends on sim-main.h
 443
 444         * interp.c (mips16_entry, ColdReset,dotrace): Add SD argument. Use GPR not registers.
 445
 446         * sim-main.h (sim_cpu): Add registers, register_widths, fpr_state,
 447         ipc, dspc, pending_*, hiaccess, loaccess, state, dsstate fields.
 448         (REGISTERS, REGISTER_WIDTHS, FPR_STATE, IPC, DSPC, PENDING_*,
 449         STATE, DSSTATE): Define
 450         (GPR, FGRIDX, ..): Define.
 451
 452         * interp.c (registers, register_widths, fpr_state, ipc, dspc,
 453         pending_*, hiaccess, loaccess, state, dsstate): Delete globals.
 454         (GPR, FGRIDX, ...): Delete macros.
 455
 456         * interp.c: Update names to match defines from sim-main.h
 457
 458 Tue Oct 14 15:11:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 459
 460         * interp.c (sim_monitor): Add SD argument.
 461         (sim_warning): Delete.  Replace calls with calls to
 462         sim_io_eprintf.
 463         (sim_error): Delete. Replace calls with sim_io_error.
 464         (open_trace, writeout32, writeout16, getnum): Add SD argument.
 465         (mips_set_profile): Rename from sim_set_profile. Add SD argument.
 466         (mips_set_profile_size): Rename from sim_set_profile_size. Add SD
 467         argument.
 468         (mips_size): Rename from sim_size. Add SD argument.
 469
 470         * interp.c (simulator): Delete global variable.
 471         (callback): Delete global variable.
 472         (mips_option_handler, sim_open, sim_write, sim_read,
 473         sim_store_register, sim_fetch_register, sim_info, sim_do_command,
 474         sim_size,sim_monitor): Use sim_io_* not callback->*.
 475         (sim_open): ZALLOC simulator struct.
 476         (PROFILE): Do not define.
 477
 478 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 479
 480         * interp.c (sim_open), support.h: Replace CHECKSIM macro found in
 481         support.h with corresponding code.
 482
 483         * sim-main.h (word64, uword64), support.h: Move definition to
 484         sim-main.h.
 485         (WORD64LO, WORD64HI, SET64LO, SET64HI, WORD64, UWORD64): Ditto.
 486
 487         * support.h: Delete
 488         * Makefile.in: Update dependencies
 489         * interp.c: Do not include.
 490
 491 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 492
 493         * interp.c (address_translation, load_memory, store_memory,
 494         cache_op): Rename to from AddressTranslation et.al., make global,
 495         add SD argument
 496
 497         * sim-main.h (AddressTranslation, LoadMemory, StoreMemory,
 498         CacheOp): Define.
 499
 500         * interp.c (SignalException): Rename to signal_exception, make
 501         global.
 502
 503         * interp.c (Interrupt, ...): Move definitions to sim-main.h.
 504
 505         * sim-main.h (SignalException, SignalExceptionInterrupt,
 506         SignalExceptionInstructionFetch, SignalExceptionAddressStore,
 507         SignalExceptionAddressLoad, SignalExceptionSimulatorFault,
 508         SignalExceptionIntegerOverflow, SignalExceptionCoProcessorUnusable):
 509         Define.
 510
 511         * interp.c, support.h: Use.
 512
 513 Tue Oct 14 13:19:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 514
 515         * interp.c (ValueFPR, StoreFPR), sim-main.h: Make global, rename
 516         to value_fpr / store_fpr. Add SD argument.
 517         (NaN, Infinity, Less, Equal, AbsoluteValue, Negate, Add, Sub,
 518         Multiply, Divide, Recip, SquareRoot, Convert): Make global.
 519
 520         * sim-main.h (ValueFPR, StoreFPR): Define.
 521
 522 Tue Oct 14 13:06:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 523
 524         * interp.c (sim_engine_run): Check consistency between configure
 525         WITH_TARGET_WORD_BITSIZE and WITH_FLOATING_POINT and gensim GPRLEN
 526         and HASFPU.
 527
 528         * configure.in (mips_bitsize): Configure WITH_TARGET_WORD_BITSIZE.
 529         (mips_fpu): Configure WITH_FLOATING_POINT.
 530         (mips_endian): Configure WITH_TARGET_ENDIAN.
 531         * configure: Update.
 532
 533 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 534
 535         * configure: Regenerated to track ../common/aclocal.m4 changes.
 536
 537 start-sanitize-r5900
 538 Mon Aug 25 19:11:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 539
 540         * interp.c (MAX_REG): Allow up-to 128 registers.
 541         (LO1, HI1): Define value that matches REGISTER_NAMES in gdb.
 542         (REGISTER_SA): Ditto.
 543         (sim_open): Initialize register_widths for r5900 specific
 544         registers.
 545         (sim_fetch_register, sim_store_register): Check for request of
 546         r5900 specific SA register.  Check for request for hi 64 bits of
 547         r5900 specific registers.
 548
 549 end-sanitize-r5900
 550 Mon Sep 29 14:45:00 1997  Bob Manson  <manson@charmed.cygnus.com>
 551
 552         * configure: Regenerated.
 553
 554 Fri Sep 26 12:48:18 1997  Mark Alexander  <marka@cygnus.com>
 555
 556         * interp.c: Allow Debug, DEPC, and EPC registers to be examined in GDB.
 557
 558 Thu Sep 25 11:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 559
 560         * gencode.c (print_igen_insn_models): Assume certain architectures
 561         include all mips* instructions.
 562         (print_igen_insn_format): Use data_size==-1 as marker for MIPS16
 563         instruction.
 564
 565         * Makefile.in (tmp.igen): Add target. Generate igen input from
 566         gencode file.
 567
 568         * gencode.c (FEATURE_IGEN): Define.
 569         (main): Add --igen option.  Generate output in igen format.
 570         (process_instructions): Format output according to igen option.
 571         (print_igen_insn_format): New function.
 572         (print_igen_insn_models): New function.
 573         (process_instructions): Only issue warnings and ignore
 574         instructions when no FEATURE_IGEN.
 575
 576 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 577
 578         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
 579         MIPS targets.
 580
 581 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 582
 583         * configure: Regenerated to track ../common/aclocal.m4 changes.
 584
 585 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 586
 587         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
 588         SIM_RESERVED_BITS): Delete, moved to common.
 589         (SIM_EXTRA_CFLAGS): Update.
 590
 591 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 592
 593         * configure.in: Configure non-strict memory alignment.
 594         * configure: Regenerated to track ../common/aclocal.m4 changes.
 595
 596 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 597
 598         * configure: Regenerated to track ../common/aclocal.m4 changes.
 599
 600 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
 601
 602         * gencode.c (SDBBP,DERET): Added (3900) insns.
 603         (RFE): Turn on for 3900.
 604         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
 605         (dsstate): Made global.
 606         (SUBTARGET_R3900): Added.
 607         (CANCELDELAYSLOT): New.
 608         (SignalException): Ignore SystemCall rather than ignore and
 609         terminate.  Add DebugBreakPoint handling.
 610         (decode_coproc): New insns RFE, DERET; and new registers Debug
 611         and DEPC protected by SUBTARGET_R3900.
 612         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
 613         bits explicitly.
 614         * Makefile.in,configure.in: Add mips subtarget option.
 615         * configure: Update.
 616
 617 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
 618
 619         * gencode.c: Add r3900 (tx39).
 620
 621 start-sanitize-tx19
 622         * gencode.c: Fix some configuration problems by improving
 623         the relationship between tx19 and tx39.
 624 end-sanitize-tx19
 625
 626 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
 627
 628         * gencode.c (build_instruction): Don't need to subtract 4 for
 629         JALR, just 2.
 630
 631 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
 632
 633         * interp.c: Correct some HASFPU problems.
 634
 635 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 636
 637         * configure: Regenerated to track ../common/aclocal.m4 changes.
 638
 639 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 640
 641         * interp.c (mips_options): Fix samples option short form, should
 642         be `x'.
 643
 644 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 645
 646         * interp.c (sim_info): Enable info code.  Was just returning.
 647
 648 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 649
 650         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
 651         MFC0.
 652
 653 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 654
 655         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
 656         constants.
 657         (build_instruction): Ditto for LL.
 658
 659 start-sanitize-tx19
 660 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
 661
 662         * mips/configure.in, mips/gencode: Add tx19/r1900.
 663
 664 end-sanitize-tx19
 665 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 666
 667         * configure: Regenerated to track ../common/aclocal.m4 changes.
 668
 669 start-sanitize-r5900
 670 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 671
 672         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
 673         for overflow due to ABS of MININT, set result to MAXINT.
 674         (build_instruction): For "psrlvw", signextend bit 31.
 675
 676 end-sanitize-r5900
 677 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 678
 679         * configure: Regenerated to track ../common/aclocal.m4 changes.
 680         * config.in: Ditto.
 681
 682 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 683
 684         * interp.c (sim_open): Add call to sim_analyze_program, update
 685         call to sim_config.
 686
 687 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 688
 689         * interp.c (sim_kill): Delete.
 690         (sim_create_inferior): Add ABFD argument. Set PC from same.
 691         (sim_load): Move code initializing trap handlers from here.
 692         (sim_open): To here.
 693         (sim_load): Delete, use sim-hload.c.
 694
 695         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 696
 697 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 698
 699         * configure: Regenerated to track ../common/aclocal.m4 changes.
 700         * config.in: Ditto.
 701
 702 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 703
 704         * interp.c (sim_open): Add ABFD argument.
 705         (sim_load): Move call to sim_config from here.
 706         (sim_open): To here.  Check return status.
 707
 708 start-sanitize-r5900
 709         * gencode.c (build_instruction): Do not define x8000000000000000,
 710         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 711
 712 end-sanitize-r5900
 713 start-sanitize-r5900
 714 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 715
 716         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 717         "pdivuw" check for overflow due to signed divide by -1.
 718
 719 end-sanitize-r5900
 720 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 721
 722         * gencode.c (build_instruction): Two arg MADD should
 723         not assign result to $0.
 724
 725 start-sanitize-r5900
 726 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 727
 728         * gencode.c (build_instruction): For "ppac5" use unsigned
 729         arrithmetic so that the sign bit doesn't smear when right shifted.
 730         (build_instruction): For "pdiv" perform sign extension when
 731         storing results in HI and LO.
 732         (build_instructions): For "pdiv" and "pdivbw" check for
 733         divide-by-zero.
 734         (build_instruction): For "pmfhl.slw" update hi part of dest
 735         register as well as low part.
 736         (build_instruction): For "pmfhl" portably handle long long values.
 737         (build_instruction): For "pmfhl.sh" correctly negative values.
 738         Store half words 2 and three in the correct place.
 739         (build_instruction): For "psllvw", sign extend value after shift.
 740
 741 end-sanitize-r5900
 742 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 743
 744         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 745         * sim/mips/configure.in: Regenerate.
 746
 747 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 748
 749         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 750         signed8, unsigned8 et.al. types.
 751
 752 start-sanitize-r5900
 753         * gencode.c (build_instruction): For PMULTU* do not sign extend
 754         registers.  Make generated code easier to debug.
 755
 756 end-sanitize-r5900
 757         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 758         hosts when selecting subreg.
 759
 760 start-sanitize-r5900
 761 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 762
 763         * gencode.c (type_for_data_len): For 32bit operations concerned
 764         with overflow, perform op using 64bits.
 765         (build_instruction): For PADD, always compute operation using type
 766         returned by type_for_data_len.
 767         (build_instruction): For PSUBU, when overflow, saturate to zero as
 768         actually underflow.
 769
 770 end-sanitize-r5900
 771 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 772
 773 start-sanitize-r5900
 774         * gencode.c (build_instruction): Handle "pext5" according to
 775         version 1.95 of the r5900 ISA.
 776
 777         * gencode.c (build_instruction): Handle "ppac5" according to
 778         version 1.95 of the r5900 ISA.
 779
 780 end-sanitize-r5900
 781         * interp.c (sim_engine_run): Reset the ZERO register to zero
 782         regardless of FEATURE_WARN_ZERO.
 783         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 784
 785 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 786
 787         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 788         (SignalException): For BreakPoints ignore any mode bits and just
 789         save the PC.
 790         (SignalException): Always set the CAUSE register.
 791
 792 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 793
 794         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 795         exception has been taken.
 796
 797         * interp.c: Implement the ERET and mt/f sr instructions.
 798
 799 start-sanitize-r5900
 800 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 801
 802         * gencode.c (build_instruction): For paddu, extract unsigned
 803         sub-fields.
 804
 805         * gencode.c (build_instruction): Saturate padds instead of padd
 806         instructions.
 807
 808 end-sanitize-r5900
 809 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 810
 811         * interp.c (SignalException): Don't bother restarting an
 812         interrupt.
 813
 814 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 815
 816         * interp.c (SignalException): Really take an interrupt.
 817         (interrupt_event): Only deliver interrupts when enabled.
 818
 819 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 820
 821         * interp.c (sim_info): Only print info when verbose.
 822         (sim_info) Use sim_io_printf for output.
 823
 824 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 825
 826         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 827         mips architectures.
 828
 829 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 830
 831         * interp.c (sim_do_command): Check for common commands if a
 832         simulator specific command fails.
 833
 834 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 835
 836         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 837         and simBE when DEBUG is defined.
 838
 839 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 840
 841         * interp.c (interrupt_event): New function.  Pass exception event
 842         onto exception handler.
 843
 844         * configure.in: Check for stdlib.h.
 845         * configure: Regenerate.
 846
 847         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 848         variable declaration.
 849         (build_instruction): Initialize memval1.
 850         (build_instruction): Add UNUSED attribute to byte, bigend,
 851         reverse.
 852         (build_operands): Ditto.
 853
 854         * interp.c: Fix GCC warnings.
 855         (sim_get_quit_code): Delete.
 856
 857         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 858         * Makefile.in: Ditto.
 859         * configure: Re-generate.
 860
 861         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 862
 863 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 864
 865         * interp.c (mips_option_handler): New function parse argumes using
 866         sim-options.
 867         (myname): Replace with STATE_MY_NAME.
 868         (sim_open): Delete check for host endianness - performed by
 869         sim_config.
 870         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 871         (sim_open): Move much of the initialization from here.
 872         (sim_load): To here.  After the image has been loaded and
 873         endianness set.
 874         (sim_open): Move ColdReset from here.
 875         (sim_create_inferior): To here.
 876         (sim_open): Make FP check less dependant on host endianness.
 877
 878         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 879         run.
 880         * interp.c (sim_set_callbacks): Delete.
 881
 882         * interp.c (membank, membank_base, membank_size): Replace with
 883         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 884         (sim_open): Remove call to callback->init. gdb/run do this.
 885
 886         * interp.c: Update
 887
 888         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 889
 890         * interp.c (big_endian_p): Delete, replaced by
 891         current_target_byte_order.
 892
 893 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 894
 895         * interp.c (host_read_long, host_read_word, host_swap_word,
 896         host_swap_long): Delete. Using common sim-endian.
 897         (sim_fetch_register, sim_store_register): Use H2T.
 898         (pipeline_ticks): Delete.  Handled by sim-events.
 899         (sim_info): Update.
 900         (sim_engine_run): Update.
 901
 902 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 903
 904         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 905         reason from here.
 906         (SignalException): To here. Signal using sim_engine_halt.
 907         (sim_stop_reason): Delete, moved to common.
 908
 909 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 910
 911         * interp.c (sim_open): Add callback argument.
 912         (sim_set_callbacks): Delete SIM_DESC argument.
 913         (sim_size): Ditto.
 914
 915 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 916
 917         * Makefile.in (SIM_OBJS): Add common modules.
 918
 919         * interp.c (sim_set_callbacks): Also set SD callback.
 920         (set_endianness, xfer_*, swap_*): Delete.
 921         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 922         Change to functions using sim-endian macros.
 923         (control_c, sim_stop): Delete, use common version.
 924         (simulate): Convert into.
 925         (sim_engine_run): This function.
 926         (sim_resume): Delete.
 927
 928         * interp.c (simulation): New variable - the simulator object.
 929         (sim_kind): Delete global - merged into simulation.
 930         (sim_load): Cleanup.  Move PC assignment from here.
 931         (sim_create_inferior): To here.
 932
 933         * sim-main.h: New file.
 934         * interp.c (sim-main.h): Include.
 935
 936 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 937
 938         * configure: Regenerated to track ../common/aclocal.m4 changes.
 939
 940 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 941
 942         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 943
 944 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 945
 946         * gencode.c (build_instruction): DIV instructions: check
 947         for division by zero and integer overflow before using
 948         host's division operation.
 949
 950 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 951
 952         * Makefile.in (SIM_OBJS): Add sim-load.o.
 953         * interp.c: #include bfd.h.
 954         (target_byte_order): Delete.
 955         (sim_kind, myname, big_endian_p): New static locals.
 956         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 957         after argument parsing.  Recognize -E arg, set endianness accordingly.
 958         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 959         load file into simulator.  Set PC from bfd.
 960         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 961         (set_endianness): Use big_endian_p instead of target_byte_order.
 962
 963 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 964
 965         * interp.c (sim_size): Delete prototype - conflicts with
 966         definition in remote-sim.h.  Correct definition.
 967
 968 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 969
 970         * configure: Regenerated to track ../common/aclocal.m4 changes.
 971         * config.in: Ditto.
 972
 973 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 974
 975         * interp.c (sim_open): New arg `kind'.
 976
 977         * configure: Regenerated to track ../common/aclocal.m4 changes.
 978
 979 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 980
 981         * configure: Regenerated to track ../common/aclocal.m4 changes.
 982
 983 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 984
 985         * interp.c (sim_open): Set optind to 0 before calling getopt.
 986
 987 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 988
 989         * configure: Regenerated to track ../common/aclocal.m4 changes.
 990
 991 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 992
 993         * interp.c : Replace uses of pr_addr with pr_uword64
 994         where the bit length is always 64 independent of SIM_ADDR.
 995         (pr_uword64) : added.
 996
 997 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 998
 999         * configure: Re-generate.
1000
1001 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
1002
1003         * configure: Regenerate to track ../common/aclocal.m4 changes.
1004
1005 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
1006
1007         * interp.c (sim_open): New SIM_DESC result.  Argument is now
1008         in argv form.
1009         (other sim_*): New SIM_DESC argument.
1010
1011 start-sanitize-r5900
1012 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
1013
1014         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
1015         Change values to avoid overloading DOUBLEWORD which is tested
1016         for all insns.
1017         * gencode.c: reinstate "offending code".
1018
1019 end-sanitize-r5900
1020 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
1021
1022         * interp.c: Fix printing of addresses for non-64-bit targets.
1023         (pr_addr): Add function to print address based on size.
1024 start-sanitize-r5900
1025         * gencode.c: #ifdef out offending code until a permanent fix
1026         can be added.  Code is causing build errors for non-5900 mips targets.
1027 end-sanitize-r5900
1028
1029 start-sanitize-r5900
1030 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
1031
1032         * gencode.c (process_instructions): Correct test for ISA dependent
1033         architecture bits in isa field of MIPS_DECODE.
1034
1035 end-sanitize-r5900
1036 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
1037
1038         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
1039
1040 start-sanitize-r5900
1041 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
1042
1043         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
1044         PMADDUW.
1045
1046 end-sanitize-r5900
1047 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
1048
1049         * gencode.c (build_mips16_operands): Correct computation of base
1050         address for extended PC relative instruction.
1051
1052 start-sanitize-r5900
1053 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
1054
1055         * Makefile.in, configure, configure.in, gencode.c,
1056         interp.c, support.h: add r5900.
1057
1058 end-sanitize-r5900
1059 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
1060
1061         * interp.c (mips16_entry): Add support for floating point cases.
1062         (SignalException): Pass floating point cases to mips16_entry.
1063         (ValueFPR): Don't restrict fmt_single and fmt_word to even
1064         registers.
1065         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
1066         or fmt_word.
1067         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
1068         and then set the state to fmt_uninterpreted.
1069         (COP_SW): Temporarily set the state to fmt_word while calling
1070         ValueFPR.
1071
1072 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
1073
1074         * gencode.c (build_instruction): The high order may be set in the
1075         comparison flags at any ISA level, not just ISA 4.
1076
1077 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
1078
1079         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
1080         COMMON_{PRE,POST}_CONFIG_FRAG instead.
1081         * configure.in: sinclude ../common/aclocal.m4.
1082         * configure: Regenerated.
1083
1084 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
1085
1086         * configure: Rebuild after change to aclocal.m4.
1087
1088 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
1089
1090         * configure configure.in Makefile.in:  Update to new configure
1091         scheme which is more compatible with WinGDB builds.
1092         * configure.in:  Improve comment on how to run autoconf.
1093         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
1094         * Makefile.in:  Use autoconf substitution to install common
1095         makefile fragment.
1096
1097 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
1098
1099         * gencode.c (build_instruction): Use BigEndianCPU instead of
1100         ByteSwapMem.
1101
1102 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
1103
1104         * interp.c (sim_monitor): Make output to stdout visible in
1105         wingdb's I/O log window.
1106
1107 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
1108
1109         * support.h: Undo previous change to SIGTRAP
1110         and SIGQUIT values.
1111
1112 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
1113
1114         * interp.c (store_word, load_word): New static functions.
1115         (mips16_entry): New static function.
1116         (SignalException): Look for mips16 entry and exit instructions.
1117         (simulate): Use the correct index when setting fpr_state after
1118         doing a pending move.
1119
1120 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
1121
1122         * interp.c: Fix byte-swapping code throughout to work on
1123         both little- and big-endian hosts.
1124
1125 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
1126
1127         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
1128         with gdb/config/i386/xm-windows.h.
1129
1130 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
1131
1132         * gencode.c (build_instruction): Work around MSVC++ code gen bug
1133         that messes up arithmetic shifts.
1134
1135 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
1136
1137         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
1138         SIGTRAP and SIGQUIT for _WIN32.
1139
1140 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
1141
1142         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
1143         force a 64 bit multiplication.
1144         (build_instruction) [OR]: In mips16 mode, don't do anything if the
1145         destination register is 0, since that is the default mips16 nop
1146         instruction.
1147
1148 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
1149
1150         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
1151         (build_endian_shift): Don't check proc64.
1152         (build_instruction): Always set memval to uword64.  Cast op2 to
1153         uword64 when shifting it left in memory instructions.  Always use
1154         the same code for stores--don't special case proc64.
1155
1156         * gencode.c (build_mips16_operands): Fix base PC value for PC
1157         relative operands.
1158         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
1159         jal instruction.
1160         * interp.c (simJALDELAYSLOT): Define.
1161         (JALDELAYSLOT): Define.
1162         (INDELAYSLOT, INJALDELAYSLOT): Define.
1163         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
1164
1165 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
1166
1167         * interp.c (sim_open): add flush_cache as a PMON routine
1168         (sim_monitor): handle flush_cache by ignoring it
1169
1170 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
1171
1172         * gencode.c (build_instruction): Use !ByteSwapMem instead of
1173         BigEndianMem.
1174         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
1175         (BigEndianMem): Rename to ByteSwapMem and change sense.
1176         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
1177         BigEndianMem references to !ByteSwapMem.
1178         (set_endianness): New function, with prototype.
1179         (sim_open): Call set_endianness.
1180         (sim_info): Use simBE instead of BigEndianMem.
1181         (xfer_direct_word, xfer_direct_long, swap_direct_word,
1182         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
1183         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
1184         ifdefs, keeping the prototype declaration.
1185         (swap_word): Rewrite correctly.
1186         (ColdReset): Delete references to CONFIG.  Delete endianness related
1187         code; moved to set_endianness.
1188
1189 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
1190
1191         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
1192         * interp.c (CHECKHILO): Define away.
1193         (simSIGINT): New macro.
1194         (membank_size): Increase from 1MB to 2MB.
1195         (control_c): New function.
1196         (sim_resume): Rename parameter signal to signal_number.  Add local
1197         variable prev.  Call signal before and after simulate.
1198         (sim_stop_reason): Add simSIGINT support.
1199         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
1200         functions always.
1201         (sim_warning): Delete call to SignalException.  Do call printf_filtered
1202         if logfh is NULL.
1203         (AddressTranslation): Add #ifdef DEBUG around debugging message and
1204         a call to sim_warning.
1205
1206 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
1207
1208         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
1209         16 bit instructions.
1210
1211 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1212
1213         Add support for mips16 (16 bit MIPS implementation):
1214         * gencode.c (inst_type): Add mips16 instruction encoding types.
1215         (GETDATASIZEINSN): Define.
1216         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
1217         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
1218         mtlo.
1219         (MIPS16_DECODE): New table, for mips16 instructions.
1220         (bitmap_val): New static function.
1221         (struct mips16_op): Define.
1222         (mips16_op_table): New table, for mips16 operands.
1223         (build_mips16_operands): New static function.
1224         (process_instructions): If PC is odd, decode a mips16
1225         instruction.  Break out instruction handling into new
1226         build_instruction function.
1227         (build_instruction): New static function, broken out of
1228         process_instructions.  Check modifiers rather than flags for SHIFT
1229         bit count and m[ft]{hi,lo} direction.
1230         (usage): Pass program name to fprintf.
1231         (main): Remove unused variable this_option_optind.  Change
1232         ``*loptarg++'' to ``loptarg++''.
1233         (my_strtoul): Parenthesize && within ||.
1234         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
1235         (simulate): If PC is odd, fetch a 16 bit instruction, and
1236         increment PC by 2 rather than 4.
1237         * configure.in: Add case for mips16*-*-*.
1238         * configure: Rebuild.
1239
1240 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
1241
1242         * interp.c: Allow -t to enable tracing in standalone simulator.
1243         Fix garbage output in trace file and error messages.
1244
1245 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
1246
1247         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
1248         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
1249         * configure.in: Simplify using macros in ../common/aclocal.m4.
1250         * configure: Regenerated.
1251         * tconfig.in: New file.
1252
1253 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
1254
1255         * interp.c: Fix bugs in 64-bit port.
1256         Use ansi function declarations for msvc compiler.
1257         Initialize and test file pointer in trace code.
1258         Prevent duplicate definition of LAST_EMED_REGNUM.
1259
1260 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
1261
1262         * interp.c (xfer_big_long): Prevent unwanted sign extension.
1263
1264 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
1265
1266         * interp.c (SignalException): Check for explicit terminating
1267         breakpoint value.
1268         * gencode.c: Pass instruction value through SignalException()
1269         calls for Trap, Breakpoint and Syscall.
1270
1271 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1272
1273         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
1274         only used on those hosts that provide it.
1275         * configure.in: Add sqrt() to list of functions to be checked for.
1276         * config.in: Re-generated.
1277         * configure: Re-generated.
1278
1279 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1280
1281         * gencode.c (process_instructions): Call build_endian_shift when
1282         expanding STORE RIGHT, to fix swr.
1283         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
1284         clear the high bits.
1285         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
1286         Fix float to int conversions to produce signed values.
1287
1288 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
1289
1290         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
1291         (process_instructions): Correct handling of nor instruction.
1292         Correct shift count for 32 bit shift instructions. Correct sign
1293         extension for arithmetic shifts to not shift the number of bits in
1294         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
1295         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
1296         Fix madd.
1297         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
1298         It's OK to have a mult follow a mult.  What's not OK is to have a
1299         mult follow an mfhi.
1300         (Convert): Comment out incorrect rounding code.
1301
1302 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
1303
1304         * interp.c (sim_monitor): Improved monitor printf
1305         simulation. Tidied up simulator warnings, and added "--log" option
1306         for directing warning message output.
1307         * gencode.c: Use sim_warning() rather than WARNING macro.
1308
1309 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1310
1311         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
1312         getopt1.o, rather than on gencode.c.  Link objects together.
1313         Don't link against -liberty.
1314         (gencode.o, getopt.o, getopt1.o): New targets.
1315         * gencode.c: Include <ctype.h> and "ansidecl.h".
1316         (AND): Undefine after including "ansidecl.h".
1317         (ULONG_MAX): Define if not defined.
1318         (OP_*): Don't define macros; now defined in opcode/mips.h.
1319         (main): Call my_strtoul rather than strtoul.
1320         (my_strtoul): New static function.
1321
1322 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
1323
1324         * gencode.c (process_instructions):  Generate word64 and uword64
1325         instead of `long long' and `unsigned long long' data types.
1326         * interp.c:  #include sysdep.h to get signals, and define default
1327         for SIGBUS.
1328         * (Convert):  Work around for Visual-C++ compiler bug with type
1329         conversion.
1330         * support.h:  Make things compile under Visual-C++ by using
1331         __int64 instead of `long long'.  Change many refs to long long
1332         into word64/uword64 typedefs.
1333
1334 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
1335
1336         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
1337         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
1338         (docdir): Removed.
1339         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
1340         (AC_PROG_INSTALL): Added.
1341         (AC_PROG_CC): Moved to before configure.host call.
1342         * configure: Rebuilt.
1343
1344 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
1345
1346         * configure.in: Define @SIMCONF@ depending on mips target.
1347         * configure: Rebuild.
1348         * Makefile.in (run): Add @SIMCONF@ to control simulator
1349         construction.
1350         * gencode.c: Change LOADDRMASK to 64bit memory model only.
1351         * interp.c: Remove some debugging, provide more detailed error
1352         messages, update memory accesses to use LOADDRMASK.
1353
1354 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
1355
1356         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
1357         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
1358         stamp-h.
1359         * configure: Rebuild.
1360         * config.in: New file, generated by autoheader.
1361         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
1362         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
1363         HAVE_ANINT and HAVE_AINT, as appropriate.
1364         * Makefile.in (run): Use @LIBS@ rather than -lm.
1365         (interp.o): Depend upon config.h.
1366         (Makefile): Just rebuild Makefile.
1367         (clean): Remove stamp-h.
1368         (mostlyclean): Make the same as clean, not as distclean.
1369         (config.h, stamp-h): New targets.
1370
1371 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1372
1373         * interp.c (ColdReset): Fix boolean test. Make all simulator
1374         globals static.
1375
1376 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
1377
1378         * interp.c (xfer_direct_word, xfer_direct_long,
1379         swap_direct_word, swap_direct_long, xfer_big_word,
1380         xfer_big_long, xfer_little_word, xfer_little_long,
1381         swap_word,swap_long): Added.
1382         * interp.c (ColdReset): Provide function indirection to
1383         host<->simulated_target transfer routines.
1384         * interp.c (sim_store_register, sim_fetch_register): Updated to
1385         make use of indirected transfer routines.
1386
1387 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
1388
1389         * gencode.c (process_instructions): Ensure FP ABS instruction
1390         recognised.
1391         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
1392         system call support.
1393
1394 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
1395
1396         * interp.c (sim_do_command): Complain if callback structure not
1397         initialised.
1398
1399 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
1400
1401         * interp.c (Convert): Provide round-to-nearest and round-to-zero
1402         support for Sun hosts.
1403         * Makefile.in (gencode): Ensure the host compiler and libraries
1404         used for cross-hosted build.
1405
1406 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
1407
1408         * interp.c, gencode.c: Some more (TODO) tidying.
1409
1410 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
1411
1412         * gencode.c, interp.c: Replaced explicit long long references with
1413         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
1414         * support.h (SET64LO, SET64HI): Macros added.
1415
1416 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
1417
1418         * configure: Regenerate with autoconf 2.7.
1419
1420 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
1421
1422         * interp.c (LoadMemory): Enclose text following #endif in /* */.
1423         * support.h: Remove superfluous "1" from #if.
1424         * support.h (CHECKSIM): Remove stray 'a' at end of line.
1425
1426 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
1427
1428         * interp.c (StoreFPR): Control UndefinedResult() call on
1429         WARN_RESULT manifest.
1430
1431 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
1432
1433         * gencode.c: Tidied instruction decoding, and added FP instruction
1434         support.
1435
1436         * interp.c: Added dineroIII, and BSD profiling support. Also
1437         run-time FP handling.
1438
1439 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
1440
1441         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
1442         gencode.c, interp.c, support.h: created.