sim/mips/ChangeLog

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