sim/mips/ChangeLog

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