sim/mips/ChangeLog

   1 Tue Nov 11 12:38:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * mips.igen: Delay slot branches add OFFSET to NIA not CIA.
   4         (MFC0, MTC0, SWC1, LWC1, SDC1, LDC1): Implement.
   5         (start-sanitize-r5900):
   6         (LWXC1, SWXC1): Delete from r5900 instruction set.
   7         (end-sanitize-r5900):
   8         (MTC1, MFC1, DMTC1, DMFC1, CFC1, CTC1): Implement separate non
   9         PENDING_FILL versions of instructions.  Simplify.
  10         (X): New function.
  11         (MULT, MULTU): Implement separate RD==0 and RD!=0 versions of
  12         instructions.
  13         (BEQZ, ..., SLT, SLTI, TLT, TLE, TLI, ...): Explicitly cast GPR to
  14         a signed value.
  15         (MTHI, MFHI): Disable code checking HI-LO.
  16
  17         * sim-main.h (dotrace,tracefh), interp.c: Make dotrace & tracefh
  18         global.
  19         (NULLIFY_NEXT_INSTRUCTION): Call dotrace.
  20
  21 Thu Nov  6 16:36:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  22
  23         * gencode.c (build_mips16_operands): Replace IPC with cia.
  24
  25         * interp.c (sim_monitor, signal_exception, cache_op, store_fpr,
  26         value_fpr, cop_ld, cop_lw, cop_sw, cop_sd, decode_coproc): Replace
  27         IPC to `cia'.
  28         (UndefinedResult): Replace function with macro/function
  29         combination.
  30         (sim_engine_run): Don't save PC in IPC.
  31
  32         * sim-main.h (IPC): Delete.
  33
  34         start-sanitize-vr5400
  35         * vr5400.igen (vr): Add missing cia argument to value_fpr.
  36         (do_select): Rename function select.
  37         end-sanitize-vr5400
  38
  39         * interp.c (signal_exception, store_word, load_word,
  40         address_translation, load_memory, store_memory, cache_op,
  41         prefetch, sync_operation, ifetch, value_fpr, store_fpr, convert,
  42         cop_lw, cop_ld, cop_sw, cop_sd, decode_coproc, sim_monitor): Add
  43         current instruction address - cia - argument.
  44         (sim_read, sim_write): Call address_translation directly.
  45         (sim_engine_run): Rename variable vaddr to cia.
  46         (signal_exception): Pass cia to sim_monitor
  47
  48         * sim-main.h (SignalException, LoadWord, StoreWord, CacheOp,
  49         Prefetch, SyncOperation, ValueFPR, StoreFPR, Convert, COP_LW,
  50         COP_LD, COP_SW, COP_SD, DecodeCoproc): Update.
  51
  52         * sim-main.h (SignalExceptionSimulatorFault): Delete definition.
  53         * interp.c (sim_open): Replace SignalExceptionSimulatorFault with
  54         SIM_ASSERT.
  55
  56         * interp.c (signal_exception): Pass restart address to
  57         sim_engine_restart.
  58
  59         * Makefile.in (semantics.o, engine.o, support.o, itable.o,
  60         idecode.o): Add dependency.
  61
  62         * sim-main.h (SIM_ENGINE_HALT_HOOK, SIM_ENGINE_RESUME_HOOK):
  63         Delete definitions
  64         (DELAY_SLOT): Update NIA not PC with branch address.
  65         (NULLIFY_NEXT_INSTRUCTION): Set NIA to instruction after next.
  66
  67         * mips.igen: Use CIA not PC in branch calculations.
  68         (illegal): Call SignalException.
  69         (BEQ, ADDIU): Fix assembler.
  70
  71 Wed Nov  5 12:19:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  72
  73         * m16.igen (JALX): Was missing.
  74
  75         * configure.in (enable-sim-igen): New configuration option.
  76         * configure: Re-generate.
  77
  78         * sim-main.h (MAX_INSNS, INSN_NAME): Define.
  79
  80         * interp.c (load_memory, store_memory): Delete parameter RAW.
  81         (sim_read, sim_write): Use sim_core_{read,write}_buffer directly
  82         bypassing {load,store}_memory.
  83
  84         * sim-main.h (ByteSwapMem): Delete definition.
  85
  86         * Makefile.in (SIM_OBJS): Add sim-memopt module.
  87
  88         * interp.c (sim_do_command, sim_commands): Delete mips specific
  89         commands.  Handled by module sim-options.
  90
  91         * sim-main.h (SIM_HAVE_FLATMEM): Undefine, use sim-core.o module.
  92         (WITH_MODULO_MEMORY): Define.
  93
  94         * interp.c (sim_info): Delete code printing memory size.
  95
  96         * interp.c (mips_size): Nee sim_size, delete function.
  97         (power2): Delete.
  98         (monitor, monitor_base, monitor_size): Delete global variables.
  99         (sim_open, sim_close): Delete code creating monitor and other
 100         memory regions.  Use sim-memopts module, via sim_do_commandf, to
 101         manage memory regions.
 102         (load_memory, store_memory): Use sim-core for memory model.
 103
 104         * interp.c (address_translation): Delete all memory map code
 105         except line forcing 32 bit addresses.
 106
 107 Wed Nov  5 11:21:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 108
 109         * sim-main.h (WITH_TRACE): Delete definition.  Enables common
 110         trace options.
 111
 112         * interp.c (logfh, logfile): Delete globals.
 113         (sim_open, sim_close): Delete code opening & closing log file.
 114         (mips_option_handler): Delete -l and -n options.
 115         (OPTION mips_options): Ditto.
 116
 117         * interp.c (OPTION mips_options): Rename option trace to dinero.
 118         (mips_option_handler): Update.
 119
 120 Wed Nov  5 09:35:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 121
 122         * interp.c (fetch_str): New function.
 123         (sim_monitor): Rewrite using sim_read & sim_write.
 124         (sim_open): Check magic number.
 125         (sim_open): Write monitor vectors into memory using sim_write.
 126         (MONITOR_BASE, MONITOR_SIZE, MEM_SIZE): Define.
 127         (sim_read, sim_write): Simplify - transfer data one byte at a
 128         time.
 129         (load_memory, store_memory): Clarify meaning of parameter RAW.
 130
 131         * sim-main.h (isHOST): Defete definition.
 132         (isTARGET): Mark as depreciated.
 133         (address_translation): Delete parameter HOST.
 134
 135         * interp.c (address_translation): Delete parameter HOST.
 136
 137 start-sanitize-tx49
 138 Wed Oct 29 14:21:32 1997  Gavin Koch  <gavin@cygnus.com>
 139
 140         * gencode.c: Add tx49 configury and insns.
 141         * configure.in: Add tx49 configury.
 142         * configure: Update.
 143
 144 end-sanitize-tx49
 145 Wed Oct 29 11:13:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 146
 147         * mips.igen:
 148
 149         * Makefile.in (IGEN_INCLUDE): Files included by mips.igen.
 150         (tmp-igen, tmp-m16): Depend on IGEN_INCLUDE.
 151
 152 Tue Oct 28 11:06:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 153
 154         * mips.igen: Add model filter field to records.
 155
 156 Mon Oct 27 17:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 157
 158         * Makefile.in (SIM_NO_CFLAGS): Define.  Define WITH_IGEN=0.
 159
 160         interp.c (sim_engine_run): Do not compile function sim_engine_run
 161         when WITH_IGEN == 1.
 162
 163         * configure.in (sim_igen_flags, sim_m16_flags): Set according to
 164         target architecture.
 165
 166         Makefile.in (tmp-igen, tmp-m16): Drop -F and -M options to
 167         igen. Replace with configuration variables sim_igen_flags /
 168         sim_m16_flags.
 169
 170         end-sanitize-v5900
 171         * r5900.igen: New file. Copy v5900 insns here.
 172         start-sanitize-r5900
 173         end-sanitize-v5400
 174         * vr5400.igen: New file.
 175         start-sanitize-vr5400
 176         * m16.igen: New file.  Copy mips16 insns here.
 177         * mips.igen: From here.
 178
 179 Mon Oct 27 13:53:59 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 180
 181         start-sanitize-vr5400
 182         * mips.igen: Tag all mipsIV instructions with vr5400 model.
 183
 184         * configure.in: Add mips64vr5400 target.
 185         * configure: Re-generate.
 186
 187         end-sanitize-vr5400
 188         * Makefile.in (SIM_NO_OBJ): Define, move SIM_M16_OBJ, SIM_IGEN_OBJ
 189         to top.
 190         (tmp-igen, tmp-m16): Pass -I srcdir to igen.
 191
 192 Sat Oct 25 16:51:40 1997  Gavin Koch  <gavin@cygnus.com>
 193
 194         * gencode.c (build_instruction): Follow sim_write's lead in using
 195         BigEndianMem instead of !ByteSwapMem.
 196
 197 Fri Oct 24 17:41:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 198
 199         * configure.in (sim_gen): Dependent on target, select type of
 200         generator.  Always select old style generator.
 201
 202         configure: Re-generate.
 203
 204         Makefile.in (tmp-igen, tmp-m16, clean-m16, clean-igen): New
 205         targets.
 206         (SIM_M16_CFLAGS, SIM_M16_ALL, SIM_M16_OBJ, BUILT_SRC_FROM_M16,
 207         SIM_IGEN_CFLAGS, SIM_IGEN_ALL, SIM_IGEN_OBJ, BUILT_SRC_FROM_IGEN,
 208         IGEN_TRACE, IGEN_INSN, IGEN_DC): Define
 209         (SIM_EXTRA_CFLAGS, SIM_EXTRA_ALL, SIM_OBJS): Add member
 210         SIM_@sim_gen@_*, set by autoconf.
 211
 212 Wed Oct 22 12:52:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 213
 214         * sim-main.h (NULLIFY_NEXT_INSTRUCTION, DELAY_SLOT): Define.
 215
 216         * interp.c (ColdReset): Remove #ifdef HASFPU, check
 217         CURRENT_FLOATING_POINT instead.
 218
 219         * interp.c (ifetch32): New function. Fetch 32 bit instruction.
 220         (address_translation): Raise exception InstructionFetch when
 221         translation fails and isINSTRUCTION.
 222
 223         * interp.c (sim_open, sim_write, sim_monitor, store_word,
 224         sim_engine_run): Change type of of vaddr and paddr to
 225         address_word.
 226         (address_translation, prefetch, load_memory, store_memory,
 227         cache_op): Change type of vAddr and pAddr to address_word.
 228
 229         * gencode.c (build_instruction): Change type of vaddr and paddr to
 230         address_word.
 231
 232 Mon Oct 20 15:29:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 233
 234         * sim-main.h (ALU64_END, ALU32_END): Use ALU*_OVERFLOW_RESULT
 235         macro to obtain result of ALU op.
 236
 237 Tue Oct 21 17:39:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 238
 239         * interp.c (sim_info): Call profile_print.
 240
 241 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 242
 243         * Makefile.in (SIM_OBJS): Add sim-profile.o module.
 244
 245         * sim-main.h (WITH_PROFILE): Do not define, defined in
 246         common/sim-config.h.  Use sim-profile module.
 247         (simPROFILE): Delete defintion.
 248
 249         * interp.c (PROFILE): Delete definition.
 250         (mips_option_handler): Delete 'p', 'y' and 'x' profile options.
 251         (sim_close): Delete code writing profile histogram.
 252         (mips_set_profile, mips_set_profile_size, writeout16, writeout32):
 253         Delete.
 254         (sim_engine_run): Delete code profiling the PC.
 255
 256 Mon Oct 20 13:31:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 257
 258         * sim-main.h (SIGNEXTEND): Force type of result to unsigned_word.
 259
 260         * interp.c (sim_monitor): Make register pointers of type
 261         unsigned_word*.
 262
 263         * sim-main.h: Make registers of type unsigned_word not
 264         signed_word.
 265
 266 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 267
 268 start-sanitize-r5900
 269         * sim-main.h (BYTES_IN_MMI_REGS, ..., SUB_REG_FETCH, ..., GPR_SB,
 270         ...): Move to sim-main.h
 271
 272 end-sanitize-r5900
 273         * interp.c (sync_operation): Rename from SyncOperation, make
 274         global, add SD argument.
 275         (prefetch): Rename from Prefetch, make global, add SD argument.
 276         (decode_coproc): Make global.
 277
 278         * sim-main.h (SyncOperation, DecodeCoproc, Pefetch): Define.
 279
 280         * gencode.c (build_instruction): Generate DecodeCoproc not
 281         decode_coproc calls.
 282
 283         * interp.c (SETFCC, GETFCC, PREVCOC1): Move to sim-main.h
 284         (SizeFGR): Move to sim-main.h
 285         (simHALTEX, simHALTIN, simTRACE, simPROFILE, simDELAYSLOT,
 286         simSIGINT, simJALDELAYSLOT): Move to sim-main.h
 287         (FP_FLAGS, FP_ENABLE, FP_CAUSE, IR, UF, OF, DZ, IO, UO): Move to
 288         sim-main.h.
 289         (FP_FS, FP_MASK_RM, FP_SH_RM, FP_RM_NEAREST, FP_RM_TOPINF,
 290         FP_RM_TOMINF, GETRM): Move to sim-main.h.
 291         (Uncached, CachedNoncoherent, CachedCoherent, Cached,
 292         isINSTRUCTION, ..., AccessLength_BYTE, ...): Move to sim-main.h.
 293         (UserMode, BigEndianMem, ByteSwapMem, ReverseEndian,
 294         BigEndianCPU, status_KSU_mask, ...). Moved to sim-main.h
 295
 296         * sim-main.h (ALU32_END, ALU64_END): Define. When overflow raise
 297         exception.
 298         (sim-alu.h): Include.
 299         (NULLIFY_NIA, NULL_CIA, CPU_CIA): Define.
 300         (sim_cia): Typedef to instruction_address.
 301
 302 Thu Oct 16 10:31:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 303
 304         * Makefile.in (interp.o): Rename generated file engine.c to
 305         oengine.c.
 306
 307         * interp.c: Update.
 308
 309 Thu Oct 16 10:31:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 310
 311         * gencode.c (build_instruction): Use FPR_STATE not fpr_state.
 312
 313 Thu Oct 16 10:31:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 314
 315         * gencode.c (build_instruction): For "FPSQRT", output correct
 316         number of arguments to Recip.
 317
 318 Tue Oct 14 17:38:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 319
 320         * Makefile.in (interp.o): Depends on sim-main.h
 321
 322         * interp.c (mips16_entry, ColdReset,dotrace): Add SD argument. Use GPR not registers.
 323
 324         * sim-main.h (sim_cpu): Add registers, register_widths, fpr_state,
 325         ipc, dspc, pending_*, hiaccess, loaccess, state, dsstate fields.
 326         (REGISTERS, REGISTER_WIDTHS, FPR_STATE, IPC, DSPC, PENDING_*,
 327         STATE, DSSTATE): Define
 328         (GPR, FGRIDX, ..): Define.
 329
 330         * interp.c (registers, register_widths, fpr_state, ipc, dspc,
 331         pending_*, hiaccess, loaccess, state, dsstate): Delete globals.
 332         (GPR, FGRIDX, ...): Delete macros.
 333
 334         * interp.c: Update names to match defines from sim-main.h
 335
 336 Tue Oct 14 15:11:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 337
 338         * interp.c (sim_monitor): Add SD argument.
 339         (sim_warning): Delete.  Replace calls with calls to
 340         sim_io_eprintf.
 341         (sim_error): Delete. Replace calls with sim_io_error.
 342         (open_trace, writeout32, writeout16, getnum): Add SD argument.
 343         (mips_set_profile): Rename from sim_set_profile. Add SD argument.
 344         (mips_set_profile_size): Rename from sim_set_profile_size. Add SD
 345         argument.
 346         (mips_size): Rename from sim_size. Add SD argument.
 347
 348         * interp.c (simulator): Delete global variable.
 349         (callback): Delete global variable.
 350         (mips_option_handler, sim_open, sim_write, sim_read,
 351         sim_store_register, sim_fetch_register, sim_info, sim_do_command,
 352         sim_size,sim_monitor): Use sim_io_* not callback->*.
 353         (sim_open): ZALLOC simulator struct.
 354         (PROFILE): Do not define.
 355
 356 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 357
 358         * interp.c (sim_open), support.h: Replace CHECKSIM macro found in
 359         support.h with corresponding code.
 360
 361         * sim-main.h (word64, uword64), support.h: Move definition to
 362         sim-main.h.
 363         (WORD64LO, WORD64HI, SET64LO, SET64HI, WORD64, UWORD64): Ditto.
 364
 365         * support.h: Delete
 366         * Makefile.in: Update dependencies
 367         * interp.c: Do not include.
 368
 369 Tue Oct 14 13:35:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 370
 371         * interp.c (address_translation, load_memory, store_memory,
 372         cache_op): Rename to from AddressTranslation et.al., make global,
 373         add SD argument
 374
 375         * sim-main.h (AddressTranslation, LoadMemory, StoreMemory,
 376         CacheOp): Define.
 377
 378         * interp.c (SignalException): Rename to signal_exception, make
 379         global.
 380
 381         * interp.c (Interrupt, ...): Move definitions to sim-main.h.
 382
 383         * sim-main.h (SignalException, SignalExceptionInterrupt,
 384         SignalExceptionInstructionFetch, SignalExceptionAddressStore,
 385         SignalExceptionAddressLoad, SignalExceptionSimulatorFault,
 386         SignalExceptionIntegerOverflow, SignalExceptionCoProcessorUnusable):
 387         Define.
 388
 389         * interp.c, support.h: Use.
 390
 391 Tue Oct 14 13:19:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 392
 393         * interp.c (ValueFPR, StoreFPR), sim-main.h: Make global, rename
 394         to value_fpr / store_fpr. Add SD argument.
 395         (NaN, Infinity, Less, Equal, AbsoluteValue, Negate, Add, Sub,
 396         Multiply, Divide, Recip, SquareRoot, Convert): Make global.
 397
 398         * sim-main.h (ValueFPR, StoreFPR): Define.
 399
 400 Tue Oct 14 13:06:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 401
 402         * interp.c (sim_engine_run): Check consistency between configure
 403         WITH_TARGET_WORD_BITSIZE and WITH_FLOATING_POINT and gensim GPRLEN
 404         and HASFPU.
 405
 406         * configure.in (mips_bitsize): Configure WITH_TARGET_WORD_BITSIZE.
 407         (mips_fpu): Configure WITH_FLOATING_POINT.
 408         (mips_endian): Configure WITH_TARGET_ENDIAN.
 409         * configure: Update.
 410
 411 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 412
 413         * configure: Regenerated to track ../common/aclocal.m4 changes.
 414
 415 start-sanitize-r5900
 416 Mon Aug 25 19:11:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 417
 418         * interp.c (MAX_REG): Allow up-to 128 registers.
 419         (LO1, HI1): Define value that matches REGISTER_NAMES in gdb.
 420         (REGISTER_SA): Ditto.
 421         (sim_open): Initialize register_widths for r5900 specific
 422         registers.
 423         (sim_fetch_register, sim_store_register): Check for request of
 424         r5900 specific SA register.  Check for request for hi 64 bits of
 425         r5900 specific registers.
 426
 427 end-sanitize-r5900
 428 Mon Sep 29 14:45:00 1997  Bob Manson  <manson@charmed.cygnus.com>
 429
 430         * configure: Regenerated.
 431
 432 Fri Sep 26 12:48:18 1997  Mark Alexander  <marka@cygnus.com>
 433
 434         * interp.c: Allow Debug, DEPC, and EPC registers to be examined in GDB.
 435
 436 Thu Sep 25 11:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 437
 438         * gencode.c (print_igen_insn_models): Assume certain architectures
 439         include all mips* instructions.
 440         (print_igen_insn_format): Use data_size==-1 as marker for MIPS16
 441         instruction.
 442
 443         * Makefile.in (tmp.igen): Add target. Generate igen input from
 444         gencode file.
 445
 446         * gencode.c (FEATURE_IGEN): Define.
 447         (main): Add --igen option.  Generate output in igen format.
 448         (process_instructions): Format output according to igen option.
 449         (print_igen_insn_format): New function.
 450         (print_igen_insn_models): New function.
 451         (process_instructions): Only issue warnings and ignore
 452         instructions when no FEATURE_IGEN.
 453
 454 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 455
 456         * interp.c (COP_SD, COP_LD): Add UNUSED to pacify GCC for some
 457         MIPS targets.
 458
 459 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 460
 461         * configure: Regenerated to track ../common/aclocal.m4 changes.
 462
 463 Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 464
 465         * Makefile.in (SIM_ALIGNMENT, SIM_ENDIAN, SIM_HOSTENDIAN,
 466         SIM_RESERVED_BITS): Delete, moved to common.
 467         (SIM_EXTRA_CFLAGS): Update.
 468
 469 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 470
 471         * configure.in: Configure non-strict memory alignment.
 472         * configure: Regenerated to track ../common/aclocal.m4 changes.
 473
 474 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 475
 476         * configure: Regenerated to track ../common/aclocal.m4 changes.
 477
 478 Sat Sep 20 14:07:28 1997  Gavin Koch  <gavin@cygnus.com>
 479
 480         * gencode.c (SDBBP,DERET): Added (3900) insns.
 481         (RFE): Turn on for 3900.
 482         * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
 483         (dsstate): Made global.
 484         (SUBTARGET_R3900): Added.
 485         (CANCELDELAYSLOT): New.
 486         (SignalException): Ignore SystemCall rather than ignore and
 487         terminate.  Add DebugBreakPoint handling.
 488         (decode_coproc): New insns RFE, DERET; and new registers Debug
 489         and DEPC protected by SUBTARGET_R3900.
 490         (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
 491         bits explicitly.
 492         * Makefile.in,configure.in: Add mips subtarget option.
 493         * configure: Update.
 494
 495 Fri Sep 19 09:33:27 1997  Gavin Koch  <gavin@cygnus.com>
 496
 497         * gencode.c: Add r3900 (tx39).
 498
 499 start-sanitize-tx19
 500         * gencode.c: Fix some configuration problems by improving
 501         the relationship between tx19 and tx39.
 502 end-sanitize-tx19
 503
 504 Tue Sep 16 15:52:04 1997  Gavin Koch  <gavin@cygnus.com>
 505
 506         * gencode.c (build_instruction): Don't need to subtract 4 for
 507         JALR, just 2.
 508
 509 Tue Sep 16 11:32:28 1997  Gavin Koch  <gavin@cygnus.com>
 510
 511         * interp.c: Correct some HASFPU problems.
 512
 513 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 514
 515         * configure: Regenerated to track ../common/aclocal.m4 changes.
 516
 517 Fri Sep 12 12:01:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 518
 519         * interp.c (mips_options): Fix samples option short form, should
 520         be `x'.
 521
 522 Thu Sep 11 09:35:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 523
 524         * interp.c (sim_info): Enable info code.  Was just returning.
 525
 526 Tue Sep  9 17:30:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 527
 528         * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
 529         MFC0.
 530
 531 Tue Sep  9 16:28:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 532
 533         * gencode.c (build_instruction): Use SIGNED64 for 64 bit
 534         constants.
 535         (build_instruction): Ditto for LL.
 536
 537 start-sanitize-tx19
 538 Sun Sep  7 16:05:46 1997  Gavin Koch  <gavin@cygnus.com>
 539
 540         * mips/configure.in, mips/gencode: Add tx19/r1900.
 541
 542 end-sanitize-tx19
 543 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 544
 545         * configure: Regenerated to track ../common/aclocal.m4 changes.
 546
 547 start-sanitize-r5900
 548 Mon Sep  1 18:43:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 549
 550         * gencode.c (build_instruction): For "pabsw" and "pabsh", check
 551         for overflow due to ABS of MININT, set result to MAXINT.
 552         (build_instruction): For "psrlvw", signextend bit 31.
 553
 554 end-sanitize-r5900
 555 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 556
 557         * configure: Regenerated to track ../common/aclocal.m4 changes.
 558         * config.in: Ditto.
 559
 560 Wed Aug 27 14:12:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 561
 562         * interp.c (sim_open): Add call to sim_analyze_program, update
 563         call to sim_config.
 564
 565 Tue Aug 26 10:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 566
 567         * interp.c (sim_kill): Delete.
 568         (sim_create_inferior): Add ABFD argument. Set PC from same.
 569         (sim_load): Move code initializing trap handlers from here.
 570         (sim_open): To here.
 571         (sim_load): Delete, use sim-hload.c.
 572
 573         * Makefile.in (SIM_OBJS): Add sim-hload.o module.
 574
 575 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 576
 577         * configure: Regenerated to track ../common/aclocal.m4 changes.
 578         * config.in: Ditto.
 579
 580 Mon Aug 25 15:59:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 581
 582         * interp.c (sim_open): Add ABFD argument.
 583         (sim_load): Move call to sim_config from here.
 584         (sim_open): To here.  Check return status.
 585
 586 start-sanitize-r5900
 587         * gencode.c (build_instruction): Do not define x8000000000000000,
 588         x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
 589
 590 end-sanitize-r5900
 591 start-sanitize-r5900
 592 Mon Jul 28 19:49:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 593
 594         * gencode.c (build_instruction): For "pdivw", "pdivbw" and
 595         "pdivuw" check for overflow due to signed divide by -1.
 596
 597 end-sanitize-r5900
 598 Fri Jul 25 15:00:45 1997  Gavin Koch  <gavin@cygnus.com>
 599
 600         * gencode.c (build_instruction): Two arg MADD should
 601         not assign result to $0.
 602
 603 start-sanitize-r5900
 604 Thu Jul 10 11:58:48 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 605
 606         * gencode.c (build_instruction): For "ppac5" use unsigned
 607         arrithmetic so that the sign bit doesn't smear when right shifted.
 608         (build_instruction): For "pdiv" perform sign extension when
 609         storing results in HI and LO.
 610         (build_instructions): For "pdiv" and "pdivbw" check for
 611         divide-by-zero.
 612         (build_instruction): For "pmfhl.slw" update hi part of dest
 613         register as well as low part.
 614         (build_instruction): For "pmfhl" portably handle long long values.
 615         (build_instruction): For "pmfhl.sh" correctly negative values.
 616         Store half words 2 and three in the correct place.
 617         (build_instruction): For "psllvw", sign extend value after shift.
 618
 619 end-sanitize-r5900
 620 Thu Jun 26 12:13:17 1997  Angela Marie Thomas (angela@cygnus.com)
 621
 622         * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
 623         * sim/mips/configure.in: Regenerate.
 624
 625 Wed Jul  9 10:29:21 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 626
 627         * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
 628         signed8, unsigned8 et.al. types.
 629
 630 start-sanitize-r5900
 631         * gencode.c (build_instruction): For PMULTU* do not sign extend
 632         registers.  Make generated code easier to debug.
 633
 634 end-sanitize-r5900
 635         * interp.c (SUB_REG_FETCH): Handle both little and big endian
 636         hosts when selecting subreg.
 637
 638 start-sanitize-r5900
 639 Tue Jul  8 18:07:20 1997  Andrew Cagney  <cagney@andros.cygnus.com>
 640
 641         * gencode.c (type_for_data_len): For 32bit operations concerned
 642         with overflow, perform op using 64bits.
 643         (build_instruction): For PADD, always compute operation using type
 644         returned by type_for_data_len.
 645         (build_instruction): For PSUBU, when overflow, saturate to zero as
 646         actually underflow.
 647
 648 end-sanitize-r5900
 649 Wed Jul  2 11:54:10 1997  Jeffrey A Law  (law@cygnus.com)
 650
 651 start-sanitize-r5900
 652         * gencode.c (build_instruction): Handle "pext5" according to
 653         version 1.95 of the r5900 ISA.
 654
 655         * gencode.c (build_instruction): Handle "ppac5" according to
 656         version 1.95 of the r5900 ISA.
 657
 658 end-sanitize-r5900
 659         * interp.c (sim_engine_run): Reset the ZERO register to zero
 660         regardless of FEATURE_WARN_ZERO.
 661         * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
 662
 663 Wed Jun  4 10:43:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 664
 665         * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
 666         (SignalException): For BreakPoints ignore any mode bits and just
 667         save the PC.
 668         (SignalException): Always set the CAUSE register.
 669
 670 Tue Jun  3 05:00:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 671
 672         * interp.c (SignalException): Clear the simDELAYSLOT flag when an
 673         exception has been taken.
 674
 675         * interp.c: Implement the ERET and mt/f sr instructions.
 676
 677 start-sanitize-r5900
 678 Mon Jun  2 23:28:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 679
 680         * gencode.c (build_instruction): For paddu, extract unsigned
 681         sub-fields.
 682
 683         * gencode.c (build_instruction): Saturate padds instead of padd
 684         instructions.
 685
 686 end-sanitize-r5900
 687 Sat May 31 00:44:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 688
 689         * interp.c (SignalException): Don't bother restarting an
 690         interrupt.
 691
 692 Fri May 30 23:41:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 693
 694         * interp.c (SignalException): Really take an interrupt.
 695         (interrupt_event): Only deliver interrupts when enabled.
 696
 697 Tue May 27 20:08:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 698
 699         * interp.c (sim_info): Only print info when verbose.
 700         (sim_info) Use sim_io_printf for output.
 701
 702 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 703
 704         * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
 705         mips architectures.
 706
 707 Tue May 27 14:22:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 708
 709         * interp.c (sim_do_command): Check for common commands if a
 710         simulator specific command fails.
 711
 712 Thu May 22 09:32:03 1997  Gavin Koch  <gavin@cygnus.com>
 713
 714         * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
 715         and simBE when DEBUG is defined.
 716
 717 Wed May 21 09:08:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 718
 719         * interp.c (interrupt_event): New function.  Pass exception event
 720         onto exception handler.
 721
 722         * configure.in: Check for stdlib.h.
 723         * configure: Regenerate.
 724
 725         * gencode.c (build_instruction): Add UNUSED attribute to tempS
 726         variable declaration.
 727         (build_instruction): Initialize memval1.
 728         (build_instruction): Add UNUSED attribute to byte, bigend,
 729         reverse.
 730         (build_operands): Ditto.
 731
 732         * interp.c: Fix GCC warnings.
 733         (sim_get_quit_code): Delete.
 734
 735         * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
 736         * Makefile.in: Ditto.
 737         * configure: Re-generate.
 738
 739         * Makefile.in (SIM_OBJS): Add sim-watch.o module.
 740
 741 Tue May 20 15:08:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 742
 743         * interp.c (mips_option_handler): New function parse argumes using
 744         sim-options.
 745         (myname): Replace with STATE_MY_NAME.
 746         (sim_open): Delete check for host endianness - performed by
 747         sim_config.
 748         (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
 749         (sim_open): Move much of the initialization from here.
 750         (sim_load): To here.  After the image has been loaded and
 751         endianness set.
 752         (sim_open): Move ColdReset from here.
 753         (sim_create_inferior): To here.
 754         (sim_open): Make FP check less dependant on host endianness.
 755
 756         * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
 757         run.
 758         * interp.c (sim_set_callbacks): Delete.
 759
 760         * interp.c (membank, membank_base, membank_size): Replace with
 761         STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
 762         (sim_open): Remove call to callback->init. gdb/run do this.
 763
 764         * interp.c: Update
 765
 766         * sim-main.h (SIM_HAVE_FLATMEM): Define.
 767
 768         * interp.c (big_endian_p): Delete, replaced by
 769         current_target_byte_order.
 770
 771 Tue May 20 13:55:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 772
 773         * interp.c (host_read_long, host_read_word, host_swap_word,
 774         host_swap_long): Delete. Using common sim-endian.
 775         (sim_fetch_register, sim_store_register): Use H2T.
 776         (pipeline_ticks): Delete.  Handled by sim-events.
 777         (sim_info): Update.
 778         (sim_engine_run): Update.
 779
 780 Tue May 20 13:42:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 781
 782         * interp.c (sim_stop_reason): Move code determining simEXCEPTION
 783         reason from here.
 784         (SignalException): To here. Signal using sim_engine_halt.
 785         (sim_stop_reason): Delete, moved to common.
 786
 787 Tue May 20 10:19:48 1997  Andrew Cagney  <cagney@b2.cygnus.com>
 788
 789         * interp.c (sim_open): Add callback argument.
 790         (sim_set_callbacks): Delete SIM_DESC argument.
 791         (sim_size): Ditto.
 792
 793 Mon May 19 18:20:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 794
 795         * Makefile.in (SIM_OBJS): Add common modules.
 796
 797         * interp.c (sim_set_callbacks): Also set SD callback.
 798         (set_endianness, xfer_*, swap_*): Delete.
 799         (host_read_word, host_read_long, host_swap_word, host_swap_long):
 800         Change to functions using sim-endian macros.
 801         (control_c, sim_stop): Delete, use common version.
 802         (simulate): Convert into.
 803         (sim_engine_run): This function.
 804         (sim_resume): Delete.
 805
 806         * interp.c (simulation): New variable - the simulator object.
 807         (sim_kind): Delete global - merged into simulation.
 808         (sim_load): Cleanup.  Move PC assignment from here.
 809         (sim_create_inferior): To here.
 810
 811         * sim-main.h: New file.
 812         * interp.c (sim-main.h): Include.
 813
 814 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 815
 816         * configure: Regenerated to track ../common/aclocal.m4 changes.
 817
 818 Wed Apr 23 17:32:19 1997  Doug Evans  <dje@canuck.cygnus.com>
 819
 820         * tconfig.in (SIM_HAVE_BIENDIAN): Define.
 821
 822 Mon Apr 21 17:16:13 1997  Gavin Koch  <gavin@cygnus.com>
 823
 824         * gencode.c (build_instruction): DIV instructions: check
 825         for division by zero and integer overflow before using
 826         host's division operation.
 827
 828 Thu Apr 17 03:18:14 1997  Doug Evans  <dje@canuck.cygnus.com>
 829
 830         * Makefile.in (SIM_OBJS): Add sim-load.o.
 831         * interp.c: #include bfd.h.
 832         (target_byte_order): Delete.
 833         (sim_kind, myname, big_endian_p): New static locals.
 834         (sim_open): Set sim_kind, myname.  Move call to set_endianness to
 835         after argument parsing.  Recognize -E arg, set endianness accordingly.
 836         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 837         load file into simulator.  Set PC from bfd.
 838         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 839         (set_endianness): Use big_endian_p instead of target_byte_order.
 840
 841 Wed Apr 16 17:55:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 842
 843         * interp.c (sim_size): Delete prototype - conflicts with
 844         definition in remote-sim.h.  Correct definition.
 845
 846 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 847
 848         * configure: Regenerated to track ../common/aclocal.m4 changes.
 849         * config.in: Ditto.
 850
 851 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 852
 853         * interp.c (sim_open): New arg `kind'.
 854
 855         * configure: Regenerated to track ../common/aclocal.m4 changes.
 856
 857 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 858
 859         * configure: Regenerated to track ../common/aclocal.m4 changes.
 860
 861 Tue Mar 25 11:38:22 1997  Doug Evans  <dje@canuck.cygnus.com>
 862
 863         * interp.c (sim_open): Set optind to 0 before calling getopt.
 864
 865 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 866
 867         * configure: Regenerated to track ../common/aclocal.m4 changes.
 868
 869 Mon Mar 17 10:52:59 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 870
 871         * interp.c : Replace uses of pr_addr with pr_uword64
 872         where the bit length is always 64 independent of SIM_ADDR.
 873         (pr_uword64) : added.
 874
 875 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 876
 877         * configure: Re-generate.
 878
 879 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 880
 881         * configure: Regenerate to track ../common/aclocal.m4 changes.
 882
 883 Thu Mar 13 12:51:36 1997  Doug Evans  <dje@canuck.cygnus.com>
 884
 885         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 886         in argv form.
 887         (other sim_*): New SIM_DESC argument.
 888
 889 start-sanitize-r5900
 890 Wed Feb 26 18:32:21 1997  Gavin Koch  <gavin@cygnus.com>
 891
 892         * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
 893         Change values to avoid overloading DOUBLEWORD which is tested
 894         for all insns.
 895         * gencode.c: reinstate "offending code".
 896
 897 end-sanitize-r5900
 898 Mon Feb 24 22:47:14 1997  Dawn Perchik  <dawn@cygnus.com>
 899
 900         * interp.c: Fix printing of addresses for non-64-bit targets.
 901         (pr_addr): Add function to print address based on size.
 902 start-sanitize-r5900
 903         * gencode.c: #ifdef out offending code until a permanent fix
 904         can be added.  Code is causing build errors for non-5900 mips targets.
 905 end-sanitize-r5900
 906
 907 start-sanitize-r5900
 908 Thu Feb 20 10:40:24 1997  Gavin Koch  <gavin@cetus.cygnus.com>
 909
 910         * gencode.c (process_instructions): Correct test for ISA dependent
 911         architecture bits in isa field of MIPS_DECODE.
 912
 913 end-sanitize-r5900
 914 Wed Feb 19 14:42:09 1997  Mark Alexander  <marka@cygnus.com>
 915
 916         * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
 917
 918 start-sanitize-r5900
 919 Tue Feb 18 17:03:47 1997  Gavin Koch  <gavin@cygnus.com>
 920
 921         * gencode.c (MIPS_DECODE): Correct instruction feature flags for
 922         PMADDUW.
 923
 924 end-sanitize-r5900
 925 Thu Feb 13 14:08:30 1997  Ian Lance Taylor  <ian@cygnus.com>
 926
 927         * gencode.c (build_mips16_operands): Correct computation of base
 928         address for extended PC relative instruction.
 929
 930 start-sanitize-r5900
 931 Fri Feb  7 11:12:44 1997  Gavin Koch  <gavin@cygnus.com>
 932
 933         * Makefile.in, configure, configure.in, gencode.c,
 934         interp.c, support.h: add r5900.
 935
 936 end-sanitize-r5900
 937 Thu Feb  6 17:16:15 1997  Ian Lance Taylor  <ian@cygnus.com>
 938
 939         * interp.c (mips16_entry): Add support for floating point cases.
 940         (SignalException): Pass floating point cases to mips16_entry.
 941         (ValueFPR): Don't restrict fmt_single and fmt_word to even
 942         registers.
 943         (StoreFPR): Likewise.  Also, don't clobber fpr + 1 for fmt_single
 944         or fmt_word.
 945         (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
 946         and then set the state to fmt_uninterpreted.
 947         (COP_SW): Temporarily set the state to fmt_word while calling
 948         ValueFPR.
 949
 950 Tue Feb  4 16:48:25 1997  Ian Lance Taylor  <ian@cygnus.com>
 951
 952         * gencode.c (build_instruction): The high order may be set in the
 953         comparison flags at any ISA level, not just ISA 4.
 954
 955 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 956
 957         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 958         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 959         * configure.in: sinclude ../common/aclocal.m4.
 960         * configure: Regenerated.
 961
 962 Fri Jan 31 11:11:45 1997  Ian Lance Taylor  <ian@cygnus.com>
 963
 964         * configure: Rebuild after change to aclocal.m4.
 965
 966 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 967
 968         * configure configure.in Makefile.in:  Update to new configure
 969         scheme which is more compatible with WinGDB builds.
 970         * configure.in:  Improve comment on how to run autoconf.
 971         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 972         * Makefile.in:  Use autoconf substitution to install common
 973         makefile fragment.
 974
 975 Wed Jan  8 12:39:03 1997  Jim Wilson  <wilson@cygnus.com>
 976
 977         * gencode.c (build_instruction): Use BigEndianCPU instead of
 978         ByteSwapMem.
 979
 980 Thu Jan 02 22:23:04 1997  Mark Alexander  <marka@cygnus.com>
 981
 982         * interp.c (sim_monitor): Make output to stdout visible in
 983         wingdb's I/O log window.
 984
 985 Tue Dec 31 07:04:00 1996  Mark Alexander  <marka@cygnus.com>
 986
 987         * support.h: Undo previous change to SIGTRAP
 988         and SIGQUIT values.
 989
 990 Mon Dec 30 17:36:06 1996  Ian Lance Taylor  <ian@cygnus.com>
 991
 992         * interp.c (store_word, load_word): New static functions.
 993         (mips16_entry): New static function.
 994         (SignalException): Look for mips16 entry and exit instructions.
 995         (simulate): Use the correct index when setting fpr_state after
 996         doing a pending move.
 997
 998 Sun Dec 29 09:37:18 1996  Mark Alexander  <marka@cygnus.com>
 999
1000         * interp.c: Fix byte-swapping code throughout to work on
1001         both little- and big-endian hosts.
1002
1003 Sun Dec 29 09:18:32 1996  Mark Alexander  <marka@cygnus.com>
1004
1005         * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
1006         with gdb/config/i386/xm-windows.h.
1007
1008 Fri Dec 27 22:48:51 1996  Mark Alexander  <marka@cygnus.com>
1009
1010         * gencode.c (build_instruction): Work around MSVC++ code gen bug
1011         that messes up arithmetic shifts.
1012
1013 Fri Dec 20 11:04:05 1996  Stu Grossman  (grossman@critters.cygnus.com)
1014
1015         * support.h:  Use _WIN32 instead of __WIN32__.  Also add defs for
1016         SIGTRAP and SIGQUIT for _WIN32.
1017
1018 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
1019
1020         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
1021         force a 64 bit multiplication.
1022         (build_instruction) [OR]: In mips16 mode, don't do anything if the
1023         destination register is 0, since that is the default mips16 nop
1024         instruction.
1025
1026 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
1027
1028         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
1029         (build_endian_shift): Don't check proc64.
1030         (build_instruction): Always set memval to uword64.  Cast op2 to
1031         uword64 when shifting it left in memory instructions.  Always use
1032         the same code for stores--don't special case proc64.
1033
1034         * gencode.c (build_mips16_operands): Fix base PC value for PC
1035         relative operands.
1036         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
1037         jal instruction.
1038         * interp.c (simJALDELAYSLOT): Define.
1039         (JALDELAYSLOT): Define.
1040         (INDELAYSLOT, INJALDELAYSLOT): Define.
1041         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
1042
1043 Tue Dec 24 22:11:20 1996  Angela Marie Thomas (angela@cygnus.com)
1044
1045         * interp.c (sim_open): add flush_cache as a PMON routine
1046         (sim_monitor): handle flush_cache by ignoring it
1047
1048 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
1049
1050         * gencode.c (build_instruction): Use !ByteSwapMem instead of
1051         BigEndianMem.
1052         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
1053         (BigEndianMem): Rename to ByteSwapMem and change sense.
1054         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
1055         BigEndianMem references to !ByteSwapMem.
1056         (set_endianness): New function, with prototype.
1057         (sim_open): Call set_endianness.
1058         (sim_info): Use simBE instead of BigEndianMem.
1059         (xfer_direct_word, xfer_direct_long, swap_direct_word,
1060         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
1061         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
1062         ifdefs, keeping the prototype declaration.
1063         (swap_word): Rewrite correctly.
1064         (ColdReset): Delete references to CONFIG.  Delete endianness related
1065         code; moved to set_endianness.
1066
1067 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
1068
1069         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
1070         * interp.c (CHECKHILO): Define away.
1071         (simSIGINT): New macro.
1072         (membank_size): Increase from 1MB to 2MB.
1073         (control_c): New function.
1074         (sim_resume): Rename parameter signal to signal_number.  Add local
1075         variable prev.  Call signal before and after simulate.
1076         (sim_stop_reason): Add simSIGINT support.
1077         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
1078         functions always.
1079         (sim_warning): Delete call to SignalException.  Do call printf_filtered
1080         if logfh is NULL.
1081         (AddressTranslation): Add #ifdef DEBUG around debugging message and
1082         a call to sim_warning.
1083
1084 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
1085
1086         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
1087         16 bit instructions.
1088
1089 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1090
1091         Add support for mips16 (16 bit MIPS implementation):
1092         * gencode.c (inst_type): Add mips16 instruction encoding types.
1093         (GETDATASIZEINSN): Define.
1094         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
1095         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
1096         mtlo.
1097         (MIPS16_DECODE): New table, for mips16 instructions.
1098         (bitmap_val): New static function.
1099         (struct mips16_op): Define.
1100         (mips16_op_table): New table, for mips16 operands.
1101         (build_mips16_operands): New static function.
1102         (process_instructions): If PC is odd, decode a mips16
1103         instruction.  Break out instruction handling into new
1104         build_instruction function.
1105         (build_instruction): New static function, broken out of
1106         process_instructions.  Check modifiers rather than flags for SHIFT
1107         bit count and m[ft]{hi,lo} direction.
1108         (usage): Pass program name to fprintf.
1109         (main): Remove unused variable this_option_optind.  Change
1110         ``*loptarg++'' to ``loptarg++''.
1111         (my_strtoul): Parenthesize && within ||.
1112         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
1113         (simulate): If PC is odd, fetch a 16 bit instruction, and
1114         increment PC by 2 rather than 4.
1115         * configure.in: Add case for mips16*-*-*.
1116         * configure: Rebuild.
1117
1118 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
1119
1120         * interp.c: Allow -t to enable tracing in standalone simulator.
1121         Fix garbage output in trace file and error messages.
1122
1123 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
1124
1125         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
1126         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
1127         * configure.in: Simplify using macros in ../common/aclocal.m4.
1128         * configure: Regenerated.
1129         * tconfig.in: New file.
1130
1131 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
1132
1133         * interp.c: Fix bugs in 64-bit port.
1134         Use ansi function declarations for msvc compiler.
1135         Initialize and test file pointer in trace code.
1136         Prevent duplicate definition of LAST_EMED_REGNUM.
1137
1138 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
1139
1140         * interp.c (xfer_big_long): Prevent unwanted sign extension.
1141
1142 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
1143
1144         * interp.c (SignalException): Check for explicit terminating
1145         breakpoint value.
1146         * gencode.c: Pass instruction value through SignalException()
1147         calls for Trap, Breakpoint and Syscall.
1148
1149 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1150
1151         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
1152         only used on those hosts that provide it.
1153         * configure.in: Add sqrt() to list of functions to be checked for.
1154         * config.in: Re-generated.
1155         * configure: Re-generated.
1156
1157 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1158
1159         * gencode.c (process_instructions): Call build_endian_shift when
1160         expanding STORE RIGHT, to fix swr.
1161         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
1162         clear the high bits.
1163         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
1164         Fix float to int conversions to produce signed values.
1165
1166 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
1167
1168         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
1169         (process_instructions): Correct handling of nor instruction.
1170         Correct shift count for 32 bit shift instructions. Correct sign
1171         extension for arithmetic shifts to not shift the number of bits in
1172         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
1173         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
1174         Fix madd.
1175         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
1176         It's OK to have a mult follow a mult.  What's not OK is to have a
1177         mult follow an mfhi.
1178         (Convert): Comment out incorrect rounding code.
1179
1180 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
1181
1182         * interp.c (sim_monitor): Improved monitor printf
1183         simulation. Tidied up simulator warnings, and added "--log" option
1184         for directing warning message output.
1185         * gencode.c: Use sim_warning() rather than WARNING macro.
1186
1187 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
1188
1189         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
1190         getopt1.o, rather than on gencode.c.  Link objects together.
1191         Don't link against -liberty.
1192         (gencode.o, getopt.o, getopt1.o): New targets.
1193         * gencode.c: Include <ctype.h> and "ansidecl.h".
1194         (AND): Undefine after including "ansidecl.h".
1195         (ULONG_MAX): Define if not defined.
1196         (OP_*): Don't define macros; now defined in opcode/mips.h.
1197         (main): Call my_strtoul rather than strtoul.
1198         (my_strtoul): New static function.
1199
1200 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
1201
1202         * gencode.c (process_instructions):  Generate word64 and uword64
1203         instead of `long long' and `unsigned long long' data types.
1204         * interp.c:  #include sysdep.h to get signals, and define default
1205         for SIGBUS.
1206         * (Convert):  Work around for Visual-C++ compiler bug with type
1207         conversion.
1208         * support.h:  Make things compile under Visual-C++ by using
1209         __int64 instead of `long long'.  Change many refs to long long
1210         into word64/uword64 typedefs.
1211
1212 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
1213
1214         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
1215         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
1216         (docdir): Removed.
1217         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
1218         (AC_PROG_INSTALL): Added.
1219         (AC_PROG_CC): Moved to before configure.host call.
1220         * configure: Rebuilt.
1221
1222 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
1223
1224         * configure.in: Define @SIMCONF@ depending on mips target.
1225         * configure: Rebuild.
1226         * Makefile.in (run): Add @SIMCONF@ to control simulator
1227         construction.
1228         * gencode.c: Change LOADDRMASK to 64bit memory model only.
1229         * interp.c: Remove some debugging, provide more detailed error
1230         messages, update memory accesses to use LOADDRMASK.
1231
1232 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
1233
1234         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
1235         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
1236         stamp-h.
1237         * configure: Rebuild.
1238         * config.in: New file, generated by autoheader.
1239         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
1240         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
1241         HAVE_ANINT and HAVE_AINT, as appropriate.
1242         * Makefile.in (run): Use @LIBS@ rather than -lm.
1243         (interp.o): Depend upon config.h.
1244         (Makefile): Just rebuild Makefile.
1245         (clean): Remove stamp-h.
1246         (mostlyclean): Make the same as clean, not as distclean.
1247         (config.h, stamp-h): New targets.
1248
1249 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
1250
1251         * interp.c (ColdReset): Fix boolean test. Make all simulator
1252         globals static.
1253
1254 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
1255
1256         * interp.c (xfer_direct_word, xfer_direct_long,
1257         swap_direct_word, swap_direct_long, xfer_big_word,
1258         xfer_big_long, xfer_little_word, xfer_little_long,
1259         swap_word,swap_long): Added.
1260         * interp.c (ColdReset): Provide function indirection to
1261         host<->simulated_target transfer routines.
1262         * interp.c (sim_store_register, sim_fetch_register): Updated to
1263         make use of indirected transfer routines.
1264
1265 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
1266
1267         * gencode.c (process_instructions): Ensure FP ABS instruction
1268         recognised.
1269         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
1270         system call support.
1271
1272 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
1273
1274         * interp.c (sim_do_command): Complain if callback structure not
1275         initialised.
1276
1277 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
1278
1279         * interp.c (Convert): Provide round-to-nearest and round-to-zero
1280         support for Sun hosts.
1281         * Makefile.in (gencode): Ensure the host compiler and libraries
1282         used for cross-hosted build.
1283
1284 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
1285
1286         * interp.c, gencode.c: Some more (TODO) tidying.
1287
1288 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
1289
1290         * gencode.c, interp.c: Replaced explicit long long references with
1291         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
1292         * support.h (SET64LO, SET64HI): Macros added.
1293
1294 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
1295
1296         * configure: Regenerate with autoconf 2.7.
1297
1298 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
1299
1300         * interp.c (LoadMemory): Enclose text following #endif in /* */.
1301         * support.h: Remove superfluous "1" from #if.
1302         * support.h (CHECKSIM): Remove stray 'a' at end of line.
1303
1304 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
1305
1306         * interp.c (StoreFPR): Control UndefinedResult() call on
1307         WARN_RESULT manifest.
1308
1309 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
1310
1311         * gencode.c: Tidied instruction decoding, and added FP instruction
1312         support.
1313
1314         * interp.c: Added dineroIII, and BSD profiling support. Also
1315         run-time FP handling.
1316
1317 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
1318
1319         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
1320         gencode.c, interp.c, support.h: created.