sim/mips/ChangeLog

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