sim/mips/ChangeLog

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