sim/erc32/ChangeLog

   1 2016-01-09  Mike Frysinger  <vapier@gentoo.org>
   2
   3         * config.in, configure: Regenerate.
   4
   5 2016-01-06  Mike Frysinger  <vapier@gentoo.org>
   6
   7         * interf.c (sim_open): Mark argv const.
   8         (sim_create_inferior): Mark argv and env const.
   9
  10 2016-01-04  Mike Frysinger  <vapier@gentoo.org>
  11
  12         * configure: Regenerate.
  13
  14 2016-01-03  Mike Frysinger  <vapier@gentoo.org>
  15
  16         * interf.c (sim_open): Replace while loop with a call to countargv.
  17
  18 2016-01-03  Mike Frysinger  <vapier@gentoo.org>
  19
  20         * configure.ac (SIM_AC_OPTION_HOSTENDIAN): Delete.
  21         * configure: Regenerate.
  22         * exec.c (fpexec): Rename CURRENT_HOST_BYTE_ORDER to
  23         HOST_BYTE_ORDER.
  24         * sis.h (WITH_HOST_BYTE_ORDER): Rename to ...
  25         (HOST_BYTE_ORDER): ... this.
  26
  27 2016-01-02  Mike Frysinger  <vapier@gentoo.org>
  28
  29         * configure: Regenerate.
  30
  31 2015-12-26  Mike Frysinger  <vapier@gentoo.org>
  32
  33         * config.in, configure: Regenerate.
  34
  35 2015-06-23  Mike Frysinger  <vapier@gentoo.org>
  36
  37         * configure: Regenerate.
  38
  39 2015-06-12  Mike Frysinger  <vapier@gentoo.org>
  40
  41         * configure: Regenerate.
  42
  43 2015-06-12  Mike Frysinger  <vapier@gentoo.org>
  44
  45         * configure: Regenerate.
  46
  47 2015-05-17  Mike Frysinger  <vapier@gentoo.org>
  48
  49         * erc32.c: Re-add file overview & author info.
  50         * exec.c, float.c, func.c, help.c, interf.c, sis.c: Likewise.
  51
  52 2015-05-08  Joel Brobecker  <brobecker@adacore.com>
  53
  54         * configure.ac: Add copyright header.
  55         * erc32.c: Change copyright holder to FSF.  Reformat.
  56         * exec.c, float.c, func.c, interf.c, sis.c, sis.h: Likewise.
  57         * help.c, startsim: Add copyright header.
  58
  59 2015-04-29  Nick Clifton  <nickc@redhat.com>
  60
  61         PR 18273
  62         * sis.c (main): Remove unreachable code.
  63
  64 2015-04-24  David Binderman  <dcb314@hotmail.com>
  65             Nick Clifton  <nickc@redhat.com>
  66
  67         PR 18273
  68         * exec.c (add32): Fix typo in check for overflow.
  69
  70 2015-04-19  Jiri Gaisler  <jiri@gaisler.se>
  71
  72         * erc32.c (current_target_byte_order): Delete.
  73         (fetch_bytes): Remove.
  74         (store_bytes): Remove byte twisting.
  75         (memory_read, memory_write): Access memory directly.
  76         (extract_short, extract_short_signed, extract_byte,
  77         extract_byte_signed): New function for for sub-word LD instructions.
  78         * exec.c (extract_short, extract_short_signed, extract_byte,
  79         extract_byte_signed): New functions.
  80         (dispatch_instruction): Update memory reads.
  81         * func.c (current_target_byte_order): Delete.
  82         (get_regi): Delete little endian handling.
  83         (disp_ctrl, dis_mem): Adjust print-out to new data endian.
  84         (bfd_load): Delete little endian handling.
  85         * interf.c (current_target_byte_order): Delete.
  86         (sim_open): Set dinfo to host endian to get correct disassembly.
  87         (sim_write, sim_read): Convert endian when gdb reads or writes
  88         memory.
  89         * sis.c (main): Set endian.
  90         * sis.h (EBT): Define.
  91
  92 2015-04-13  Mike Frysinger  <vapier@gentoo.org>
  93
  94         * configure: Regenerate.
  95
  96 2015-03-31  Mike Frysinger  <vapier@gentoo.org>
  97
  98         * config.in, configure: Regenerate.
  99
 100 2015-03-28  Jiri Gaisler  <jiri@gaisler.se>
 101
 102         * func.c (exec_cmd): Fix old style prototype.  Mark cmd const.  Save
 103         the command in a new cmdsave2 to avoid modifying.
 104         (bfd_load): Fix old style prototype.  Mark fname const.
 105         * sis.h (exec_cmd): Mark cmd const.
 106         (bfd_load): Mark fname const.
 107
 108 2015-03-28  Jiri Gaisler  <jiri@gaisler.se>
 109
 110         * erc32.c (memory_iread): New function to fetch instructions.
 111         (memory_read): Print message in verbose mode.
 112         * interf.c (run_sim): Use memory_iread.
 113         * sis.c (run_sim): As above.
 114         * sis.h (memory_iread): New prototype.
 115         (sregs): Declare.
 116
 117 2015-03-28  Mike Frysinger  <vapier@gentoo.org>
 118
 119         * erc32.c (mec_read): Delete parenthesis around return statement.
 120         (mec_write, read_uart, rtc_counter_read, gpt_counter_read, memory_read,
 121         memory_write, get_mem_ptr, sis_memory_write, sis_memory_read): Likewise.
 122         * exec.c (sub_cc, add_cc, add32, dispatch_instruction, fpexec, chk_asi,
 123         execute_trap, check_interrupts): Likewise.
 124         * float.c (get_accex): Likewise.
 125         * func.c (batch, limcalc, exec_cmd, disp_fpu, now, wait_for_irq,
 126         check_bpt, bfd_load, get_time): Likewise.
 127         * interf.c (run_sim, sim_write, sim_read): Likewise.
 128         * sis.c (run_sim): Likewise.
 129
 130 2015-03-24  Mike Frysinger  <vapier@gentoo.org>
 131
 132         * interf.c (sim_set_callbacks, sim_size, sim_trace): Delete.
 133
 134 2015-03-17  Jiri Gaisler  <jiri@gaisler.se>
 135
 136         * func.c (exec_cmd): Silence compiler warnings when calling system().
 137         (batch): Replace fgets() with getline().
 138
 139 2015-03-17  Jiri Gaisler  <jiri@gaisler.se>
 140
 141         * func.c (show_stat): Print simulation time in portable long long
 142         format.
 143         * help.c (usage): Update usage help print-out.
 144         * sis.c (run_sim): Increase debug level with -v. Also print
 145         simulation time in portable long long format.
 146         * sis.h: Use stdint.h for portable 32- and 64-bit ints.
 147
 148 2015-03-16  Mike Frysinger  <vapier@gentoo.org>
 149
 150         * config.in, configure: Regenerate.
 151
 152 2015-03-16  Jiri Gaisler  <jiri@gaisler.se>
 153
 154         * Makefile.in (end, end.h): Remove target rules.
 155         (clean): Remove end and end.h.
 156         (erc32.o, exec.o, float.o, func.o, help.o, interf.o, sis.o): Delete
 157         rules.
 158         * configure, config.in: Regenerate.
 159         * configure.ac: Use SIM_AC_OPTION_HOSTENDIAN
 160         * end.c: Delete.
 161         * erc32.c: Remove end.h include.
 162         * exec.c: Remove end.h include. Use HOST_LITTLE_ENDIAN.
 163         * func.c, sis.c: Likewise.
 164
 165 2015-03-14  Mike Frysinger  <vapier@gentoo.org>
 166
 167         * Makefile.in (SIM_RUN_OBJS): Set to sis.o.
 168
 169 2015-03-14  Mike Frysinger  <vapier@gentoo.org>
 170
 171         * configure.ac (AC_CHECK_HEADERS): Delete.
 172         * aclocal.m4, configure: Regenerate.
 173
 174 2015-02-22  Jiri Gaisler  <jiri@gaisler.se>
 175
 176         * Makefile.in: Add include path to readline.h.
 177         sis.c: Remove locally define readline types.
 178
 179 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 180
 181         * func.c (reset_stat, show_stat): Switch to double in time keeping.
 182         (get_time): New function to get system time.
 183         * interf.c (run_sim): Use get_time() for system time.
 184         * sis.c (run_sim): Likewise.
 185         * sis.h: Likewise.
 186
 187 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 188
 189         * Makefile.in: Remove unused defines
 190
 191 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 192
 193         * float.c (get_accex, clear_accex, set_fsr): Use functions from fenv.h
 194         instead of custom assembly.
 195
 196 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 197
 198         * erc32.c (mec_read): Allow simulator memory size to be read
 199         by application.
 200         (boot_init): initialize memory and timers if start address is
 201         not 0.
 202         * func.c (exe_cmd): Call boot_init if start address not 0.
 203         * interf.c (run_sim): Likewise.
 204
 205 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 206
 207         * exec.c (init_regs): erc32 has vendor ID 1 and version ID 1 in %psr.
 208
 209 2015-02-21  Jiri Gaisler  <jiri@gaisler.se>
 210
 211         * func.c (print_insn_sparc_sis): Add helper function for disassembly.
 212         (disp_ctrl): Use helper function.
 213
 214 2014-08-19  Alan Modra  <amodra@gmail.com>
 215
 216         * configure: Regenerate.
 217
 218 2014-08-15  Roland McGrath  <mcgrathr@google.com>
 219
 220         * configure: Regenerate.
 221         * config.in: Regenerate.
 222
 223 2014-03-10  Mike Frysinger  <vapier@gentoo.org>
 224
 225         * interf.c (sim_do_command): Add const to cmd.
 226
 227 2014-03-05  Mike Frysinger  <vapier@gentoo.org>
 228
 229         * interf.c (sim_load): Add const to prog.
 230
 231 2013-10-09  Sergio Durigan Junior  <sergiodj@redhat.com>
 232
 233         PR sim/16018:
 234         * float.c (set_fsr): Add missing "break" statements.  Reindent
 235         code.
 236
 237 2013-09-23  Alan Modra  <amodra@gmail.com>
 238
 239         * configure: Regenerate.
 240
 241 2013-06-03  Mike Frysinger  <vapier@gentoo.org>
 242
 243         * aclocal.m4, configure: Regenerate.
 244
 245 2013-03-14  Joel Sherrill <joel.sherrill@oarcorp.com>
 246
 247         * Makefile.in: Include build directory in search path to find
 248         config.h
 249
 250 2012-08-16  Nick Clifton  <nickc@redhat.com>
 251
 252         * end.c: Include config.h before system header files.
 253         * erc32.c: Likewise.
 254         * exec.c: Likewise.
 255         * float.c: Likewise.
 256         * func.c: Likewise.
 257         * help.c: Likewise.
 258         * interf.c: Likewise.
 259
 260 2012-06-15  Joel Brobecker  <brobecker@adacore.com>
 261
 262         * sys.h: Include "config.h".
 263
 264 2012-06-15  Joel Brobecker  <brobecker@adacore.com>
 265
 266         * config.in, configure: Regenerate.
 267
 268 2012-05-24  Pedro Alves  <palves@redhat.com>
 269
 270         PR gdb/7205
 271
 272         Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout.
 273
 274 2012-03-24  Mike Frysinger  <vapier@gentoo.org>
 275
 276         * aclocal.m4, config.in, configure: Regenerate.
 277
 278 2011-12-31  Mike Frysinger  <vapier@gentoo.org>
 279
 280         PR sim/9971:
 281         * configure.ac: Change AC_CHECK_LIB to AC_SEARCH_LIBS to match
 282         the code in gdb's configure.ac with $TERMCAP.
 283         * configure: Regenerated.
 284
 285 2011-12-03  Mike Frysinger  <vapier@gentoo.org>
 286
 287         * aclocal.m4: New file.
 288         * configure: Regenerate.
 289
 290 2011-10-17  Mike Frysinger  <vapier@gentoo.org>
 291
 292         * configure.ac: Change include to common/acinclude.m4.
 293
 294 2011-10-17  Mike Frysinger  <vapier@gentoo.org>
 295
 296         * configure.ac: Change AC_PREREQ to 2.64.  Delete AC_CONFIG_HEADER
 297         call.  Replace common.m4 include with SIM_AC_COMMON.
 298         * configure: Regenerate.
 299
 300 2011-06-09  Mike Frysinger  <vapier@gentoo.org>
 301
 302         * interf.c (sim_open): Accept and ignore `--sysroot=...'.
 303
 304 2011-06-01  Joel Brobecker  <brobecker@adacore.com>
 305
 306         * interf.c (sim_complete_command): New stub function.
 307
 308 2011-01-11  Andrew Burgess  <aburgess@broadcom.com>
 309
 310         * interf.c (sim_store_register): Update return value to
 311         match new API.
 312
 313 2010-05-20  Joel Brobecker  <brobecker@adacore.com>
 314
 315         * sis.h: Remove #include <stdint.h>.
 316         (uint64, int64): Redefine without using stdint.h.
 317         (UINT64_MAX): Define.
 318
 319 2010-04-20  Tiemen Schut    <T.Schut@sron.nl>
 320
 321         * erc32.c (sis_memory_write): Change prototype to const unsigned char *.
 322         * func.c (exec_cmd, event, advance_time, wait_for_irq): Use uint64
 323         for counts.
 324         * interf.c (run_sim): Change icount to uint64_t. Use strtol directly.
 325         (sim_resume): Specify maximum run time as uint64.
 326         * sis.c (run_sim): Change icount to uint64_t.
 327         * sis.h: Define uint64 as uint64_t. Change various fields and
 328         prototypes to uint64 to support longer simulations.
 329
 330 2010-04-14  Mike Frysinger  <vapier@gentoo.org>
 331
 332         * interp.c (sim_write): Add const to buf arg.
 333
 334 2010-01-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 335
 336         * configure: Regenerate.
 337
 338 2009-08-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 339
 340         * config.in: Regenerate.
 341         * configure: Likewise.
 342
 343         * configure: Regenerate.
 344
 345 2008-11-10  Joel Sherrill <joel.sherrill@oarcorp.com>
 346
 347         * erc32.c, exec.c: Fix warnings.
 348
 349 2008-07-11  Hans-Peter Nilsson  <hp@axis.com>
 350
 351         * configure: Regenerate to track ../common/common.m4 changes.
 352         * config.in: Ditto.
 353
 354 2008-06-09  Joel Sherrill <joel.sherrill@oarcorp.com>
 355
 356         * sis.c: Correct spelling error.
 357
 358 2008-06-06  Vladimir Prus  <vladimir@codesourcery.com>
 359             Daniel Jacobowitz  <dan@codesourcery.com>
 360             Joseph Myers  <joseph@codesourcery.com>
 361
 362         * configure: Regenerate.
 363
 364 2006-12-21  Hans-Peter Nilsson  <hp@axis.com>
 365
 366         * acconfig.h: Remove.
 367         * config.in: Regenerate.
 368
 369 2006-12-20  Hans-Peter Nilsson  <hp@axis.com>
 370
 371         * configure.ac: Add test for readline, substitute READLINE.
 372         * Makefile.in (READLINE_LIB): New substituted-contents variable.
 373         (SIM_EXTRA_LIBDEPS): Don't set.
 374         (SIM_EXTRA_LIBS): Use $(READLINE_LIB) instead of
 375         ../../readline/libreadline.a.
 376         * configure: Regenerate.
 377
 378 2006-08-08  Daniel Jacobowitz  <dan@codesourcery.com>
 379
 380         * Makefile.in (func.o, help.o): Correct dependencies.
 381
 382 2006-08-08  Joel Sherrill <joel.sherrill@oarcorp.com>
 383
 384         * Makefile.in (install-sis): Honor DESTDIR.
 385
 386 2006-06-13  Richard Earnshaw  <rearnsha@arm.com>
 387
 388         * configure: Regenerated.
 389
 390 2006-06-05  Daniel Jacobowitz  <dan@codesourcery.com>
 391
 392         * configure: Regenerated.
 393
 394 2006-05-31  Daniel Jacobowitz  <dan@codesourcery.com>
 395
 396         * configure: Regenerated.
 397
 398 2005-11-28  Mark Mitchell  <mark@codesourcery.com>
 399
 400         * interf.c: (gdb/signals.h): Include it.
 401         (sim_stop_reason): Use TARGET_SIGNAL_*.
 402
 403 2005-07-08  Ben Elliston  <bje@au.ibm.com>
 404
 405         * func.c: Remove ANSI_PROTOTYPES conditional code.
 406
 407 2005-03-23  Mark Kettenis  <kettenis@gnu.org>
 408
 409         * configure: Regenerate.
 410
 411 2005-03-07  Jerome Guitton  <guitton@gnat.com>
 412
 413         * sim/erc32/float.c (set_fsr): Do not use deprecated multi-line
 414         strings.
 415         (clear_accex): Ditto.
 416         * sim/erc32/interf.c: Remove the redeclaration of fprintf.
 417         * sim/erc32/sis.c: Ditto.
 418         * sim/erc32/exec.c: Add missing semicolon.
 419         * sim/erc32/func.c: Remove definitions of generic_print_address,
 420         generic_symbol_at_address, buffer_read_memory and perror_memory, as
 421         they are already defined in opcodes/dis-buf.c.
 422
 423 2005-01-14  Andrew Cagney  <cagney@gnu.org>
 424
 425         * configure.ac: Sinclude aclocal.m4 before common.m4.  Add
 426         explicit call to AC_CONFIG_HEADER.
 427         * configure: Regenerate.
 428
 429 2005-01-12  Andrew Cagney  <cagney@gnu.org>
 430
 431         * configure.ac: Update to use ../common/common.m4.
 432         * configure: Re-generate.
 433
 434 2005-01-11  Andrew Cagney  <cagney@localhost.localdomain>
 435
 436         * configure: Regenerated to track ../common/aclocal.m4 changes.
 437
 438 2005-01-07  Andrew Cagney  <cagney@gnu.org>
 439
 440         * configure.ac: Rename configure.in, require autoconf 2.59.
 441         * configure: Re-generate.
 442
 443 2004-12-08  Hans-Peter Nilsson  <hp@axis.com>
 444
 445         * configure: Regenerate for ../common/aclocal.m4 update.
 446
 447 2004-11-11  Andreas Schwab  <schwab@suse.de>
 448
 449         * interf.c: Include "libiberty.h" instead of declaring buildargv
 450         ourselves.
 451
 452 2003-02-27  Andrew Cagney  <cagney@redhat.com>
 453
 454         * interf.c (sim_open, sim_create_inferior): Rename _bfd to bfd.
 455
 456 2002-06-16  Andrew Cagney  <ac131313@redhat.com>
 457
 458         * configure: Regenerated to track ../common/aclocal.m4 changes.
 459
 460 2002-06-08  Andrew Cagney  <cagney@redhat.com>
 461
 462         * sis.h: Include "gdb/remote-sim.h" and "gdb/callback.h".
 463         * interf.c: Include "gdb/remote-sim.h".
 464
 465 Tue May 23 21:39:23 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 466
 467         * configure: Regenerated to track ../common/aclocal.m4 changes.
 468
 469 2000-03-07  Frank Ch. Eigler  <fche@redhat.com>
 470
 471         From John Dallaway  <jld@redhat.co.uk>:
 472         * Makefile.in (install-sis): Add $(EXEEXT) for Windows host.
 473
 474 2000-03-03  Jonathan Larmour  <jlarmour@redhat.co.uk>
 475
 476         * func.c (buffer_read_memory): Change type of size to unsigned to
 477         match prototype
 478
 479 Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 480
 481         * configure: Regenerated to track ../common/aclocal.m4 changes.
 482
 483 1999-05-08  Felix Lee  <flee@cygnus.com>
 484
 485         * configure: Regenerated to track ../common/aclocal.m4 changes.
 486
 487 1999-03-03  DJ Delorie  <dj@cygnus.com>
 488
 489         * configure.in: add termcap and -luser32 for host=cygwin
 490         * configure: regenerate
 491
 492 1999-02-11  Hugo Tyson  <hmt@cygnus.co.uk>
 493
 494         * exec.c (dispatch_instruction):
 495         Correct the sense of the
 496                   if (!sparclite) {
 497                      sregs->trap = TRAP_UNIMP;
 498                      break;
 499                   }
 500         clause that has been pasted around: it's correct in the SCAN and
 501         DIVScc (divide step) cases (where it was probably originally
 502         written?), but reversed in the SDIV, SDIVcc, UDIV, UDIVcc cases
 503         ie. instructions only in the SPARC V8 or SPARClite 86x
 504         architectures.  It was also present when not required for SMUL,
 505         SMULcc, UMUL, UMULcc instructions that are present in all
 506         architectures.
 507
 508 1999-01-25  Hugo Tyson  <hmt@cygnus.co.uk>
 509
 510         * interf.c (run_sim): Fix a bug in the main loop's handling of
 511         annulled delay slot instructions.  There is precedent for this
 512         change; the _other_ main loop in sis.c gets it right according to
 513         my reading of the code.
 514
 515         The bug is: if an interrupt happens when the next instruction
 516         (at sregs->pc) is annulled, the trap is taken (by execute_trap())
 517         with the current values of PC and NPC, so when the trap returns,
 518         the annulled instruction is indeed executed.  Another giveaway is
 519         that the annul flag is cleared in execute_trap(): the information
 520         is demonstrably discarded.
 521
 522         The solution is: perform annulling before looking for traps, in
 523         fact it's neater to do annulling, see if there's an interrupt and
 524         if not, do the instruction, then handle traps be they generated by
 525         interrupts pending or by the instruction we might just have done.
 526         That's what the sis.c one does.
 527
 528 1999-01-20  Hugo Tyson  <hmt@cygnus.co.uk>
 529
 530         * sis.h: Add asr17 register for support of SparcLITE (at least the
 531         Hitachi ones I find before me)
 532
 533         * exec.c (dispatch_instruction): Case WRY: Allow write of asr17 if
 534         sparclite.  Other ASR numbers than 17 or 0 (Y) trap out.
 535         Case RDY: Allow read of asr17 if sparclite.  Other ASRs ditto.
 536         (execute_trap): Do single-vector-trapping if asr17 bit 0 is set.
 537         (init_regs): Initialize y and asr17.
 538         NB: In instruction-set space, the Y register is asr0; the
 539         instructions have different names for human reasons only.
 540
 541         * sis.c:
 542         * interf.c: Set boolean mode variable dumbio if invoked with
 543         argument "-dumbio" and mention it of verbose.
 544         * erc32.c: if "dumbio" is set, do not assume that there is a
 545         terminal type device attached to stdin/stdout.  Do not set
 546         buffering or mess with tcsetattr or do any read operations in
 547         order to make UART interrupts; not input data is supported.
 548         This is necessary to allow the sim to be used within the eCos
 549         testing infrastructure where stdin/stdout are pipes to a TCL
 550         program; the sim hangs otherwise.
 551
 552 Thu Jul 23 07:17:03 1998  Mark Alexander  <marka@cygnus.com>
 553
 554         * exec.c (dispatch_instruction): Add SPARClite 'scan' instruction.
 555
 556 Tue Jul  7 21:12:41 1998  Mark Alexander  <marka@cygnus.com>
 557
 558         * func.c (bfd_load): Add special handling of a.out executables.
 559
 560 Sat Jun 13 08:33:25 1998  Mark Alexander  <marka@cygnus.com>
 561
 562         * func.c (bfd_load): Print correct endianness.
 563         * interf.c (run_sim): Print debugging information if verbosity level
 564         is greater than 2.
 565         (sim_open): Repeated -v options now increment verbosity level.
 566         (sim_store_register): Handle little-endian case.
 567         (flush_window): Print debugging information if verbosity level
 568         is greater then 2.
 569
 570 Tue Jun  2 15:20:35 1998  Mark Alexander  <marka@cygnus.com>
 571
 572         * interf.c (sim_open): Use revamped memory_read, which makes
 573         byte-swapping unnecessary.  Add -sparclite-board option for
 574         emulating RAM found on typical SPARClite boards.  Print
 575         error message for unrecognized option.
 576         * erc32.c: Change RAM address and size from constants to variables,
 577         to allow emulation of SPARClite board RAM.
 578         (fetch_bytes, store_bytes): New helper functions for revamped
 579         mememory_read and memory_write.
 580         (memory_read, memory_write): Rewrite to store bytes in target
 581         byte order instead of storing words in host byte order; this
 582         greatly simplifies support of little-endian programs.
 583         (get_mem_ptr): Remove unnecessary byte parameter.
 584         (sis_memory_write, sis_memory_read): Store words in target
 585         byte order instead of host byte order.
 586         (byte_swap_words): Remove, no longer needed.
 587         * sis.h ((byte_swap_words): Remove declaration, no longer needed.
 588         (memory_read): Add new sz parameter.
 589         * sis.c (run_sim): Use revamped memory_read, which makes
 590         byte-swapping unnecessary.
 591         * exec.c (dispatch_instruction): Use revamped memory_read, which
 592         makes byte-swapping and double-word fetching unnecessary.
 593         * func.c (sparclite_board): Declare new variable.
 594         (get_regi): Handle little-endian data.
 595         (bfd_load): Recognize little-endian SPARClite as having
 596         little-endian data.
 597
 598 Fri May 22 14:23:16 1998  Mark Alexander  <marka@cygnus.com>
 599
 600         * erc32.c (port_init): Print messages only if sis_verbose is true.
 601         * func.c (bfd_load): Ditto.
 602         * interf.c (sim_open): Ditto.
 603
 604 Thu May 14 23:10:48 1998  Mark Alexander  <marka@cygnus.com>
 605
 606         * sis.h (uint64, int64): Define.
 607         * exec.c (SDIV, SDIVCC, UDIV, UDIVCC): Define new opcodes.
 608         * (mul64): Simplify calculation of negative result.
 609         * (div64): New helper function for 64-bit division.
 610         * (dispatch_instruction): Add emulation of SDIV, SDIVCC, UDIV,
 611         and UDIVCC.
 612
 613 Wed May 13 14:59:54 1998  Mark Alexander  <marka@cygnus.com>
 614
 615         * erc32.c (close_port): Don't close stdin; it kills GDB.
 616         (byte_swap_words): New function.
 617         * sis.h: (byte_swap_words): Declare.
 618         * interf.c (run_sim): Always fetch instructions as big-endian.
 619         * sis.c (run_sim): Ditto.
 620
 621 Tue Apr 28 18:33:31 1998  Geoffrey Noer  <noer@cygnus.com>
 622
 623         * configure: Regenerated to track ../common/aclocal.m4 changes.
 624
 625 Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>
 626
 627         * configure: Regenerated to track ../common/aclocal.m4 changes.
 628         * config.in: Ditto.
 629
 630 Sun Apr 26 15:20:17 1998  Tom Tromey  <tromey@cygnus.com>
 631
 632         * acconfig.h: New file.
 633         * configure.in: Reverted change of Apr 24; use sinclude again.
 634
 635 Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>
 636
 637         * configure: Regenerated to track ../common/aclocal.m4 changes.
 638         * config.in: Ditto.
 639
 640 Fri Apr 24 11:19:52 1998  Tom Tromey  <tromey@cygnus.com>
 641
 642         * configure.in: Don't call sinclude.
 643
 644 Sat Apr 18 12:00:16 1998  Mark Alexander  <marka@cygnus.com>
 645
 646         * func.c (disp_fpu): Fix build problem on big-endian hosts.
 647
 648 Wed Apr  8 19:33:34 1998  Mark Alexander  <marka@cygnus.com>
 649
 650         * erc32.c (sim_stop): Handle SIGINT gracefully.
 651         * interf.c (sim_open): Don't catch SIGINT; GDB will do that for us.
 652
 653 Wed Apr  8 18:29:40 1998  Mark Alexander  <marka@cygnus.com>
 654
 655         * exec.c (dispatch_instruction): Change how carry out is calculated
 656         in DIVSCC.  Add emulation of SMULCC, UMUL, and UMULCC.
 657
 658 Sat Apr  4 20:36:25 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 659
 660         * configure: Regenerated to track ../common/aclocal.m4 changes.
 661
 662 Wed Apr  1 21:19:18 1998  Mark Alexander  <marka@cygnus.com>
 663
 664         * end.c: Update to version 2.7.5, fix compiler warnings and bugs.
 665         * erc32.c: Ditto.
 666         * exec.c: Ditto.
 667         * float.c: Ditto.
 668         * func.c: Ditto.
 669         * help.c: Ditto.
 670         * interf.c: Ditto.
 671         * sis.c: Ditto.
 672         * sis.h: Ditto.
 673
 674 Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 675
 676         * configure: Regenerated to track ../common/aclocal.m4 changes.
 677
 678 Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 679
 680         * configure: Regenerated to track ../common/aclocal.m4 changes.
 681
 682 Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 683
 684         * configure: Regenerated to track ../common/aclocal.m4 changes.
 685
 686 Tue Feb 17 12:41:11 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 687
 688         * interf.c (sim_store_register, sim_fetch_register): Pass in
 689         length parameter.  Return -1.
 690
 691 Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 692
 693         * configure: Regenerated to track ../common/aclocal.m4 changes.
 694
 695 Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 696
 697         * configure: Regenerated to track ../common/aclocal.m4 changes.
 698
 699 Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
 700
 701         * configure: Regenerated to track ../common/aclocal.m4 changes.
 702
 703 Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 704
 705         * configure: Regenerated to track ../common/aclocal.m4 changes.
 706         * config.in: Ditto.
 707
 708 Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
 709
 710         * configure: Regenerated to track ../common/aclocal.m4 changes.
 711
 712 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 713
 714         * configure: Regenerated to track ../common/aclocal.m4 changes.
 715
 716 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 717
 718         * configure: Regenerated to track ../common/aclocal.m4 changes.
 719
 720 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 721
 722         * configure: Regenerated to track ../common/aclocal.m4 changes.
 723
 724 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 725
 726         * configure: Regenerated to track ../common/aclocal.m4 changes.
 727
 728 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 729
 730         * configure: Regenerated to track ../common/aclocal.m4 changes.
 731
 732 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 733
 734         * configure: Regenerated to track ../common/aclocal.m4 changes.
 735
 736 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 737
 738         * configure: Regenerated to track ../common/aclocal.m4 changes.
 739         * config.in: Ditto.
 740
 741 Tue Aug 26 10:38:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 742
 743         * float.c (__setfpucw): Compile on any i386 target.  Not just NT.
 744
 745         * interf.c (sim_kill): Delete.
 746         (sim_create_inferior): Add ABFD argument.  Initialize PC from ABFD
 747         argument.
 748         (sim_load): Don't save start address.
 749         (start_address): Delete variable.
 750
 751 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 752
 753         * configure: Regenerated to track ../common/aclocal.m4 changes.
 754         * config.in: Ditto.
 755
 756 Mon Aug 25 16:19:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 757
 758         * interf.c (sim_open): Add ABFD argument. Change ARGV to PARGV.
 759
 760 Mon Jun 30 11:45:25 1997  Doug Evans  <dje@canuck.cygnus.com>
 761
 762         * Makefile.in (install-sis): Change $(srcdir)/sis to sis.
 763
 764 Wed May 28 09:46:13 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 765
 766         * interf.c (sim_set_callbacks): Drop SD argument - not applicable.
 767         (sim_open): Add callback arg, save it.
 768
 769 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 770
 771         * configure: Regenerated to track ../common/aclocal.m4 changes.
 772
 773 Tue Apr 22 11:05:01 1997  Doug Evans  <dje@canuck.cygnus.com>
 774
 775         * interf.c (sim_open): Undo patch to add -E support.
 776
 777 Thu Apr 17 03:03:56 1997  Doug Evans  <dje@canuck.cygnus.com>
 778
 779         * interf.c (sim_open): Ignore -E arg.
 780         (start_address): New static local.
 781         (sim_load): Return SIM_RC.  New arg abfd.  Set start_address from bfd.
 782         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 783
 784 Tue Apr 15 15:16:11 1997  Ian Lance Taylor  <ian@cygnus.com>
 785
 786         * Makefile.in (install-sis): Depend upon installdirs.  Use
 787         $(program_transform_name) directly, rather than using
 788         $(INSTALL_XFORM).
 789
 790 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 791
 792         * configure: Regenerated to track ../common/aclocal.m4 changes.
 793         * config.in: Ditto.
 794
 795 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 796
 797         * interf.c (sim_open): New arg `kind'.
 798
 799         * configure: Regenerated to track ../common/aclocal.m4 changes.
 800
 801 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 802
 803         * configure: Regenerated to track ../common/aclocal.m4 changes.
 804
 805 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 806
 807         * configure: Re-generate.
 808
 809 Thu Mar 13 12:46:04 1997  Doug Evans  <dje@canuck.cygnus.com>
 810
 811         * interf.c (sim_open): New SIM_DESC result.  Argument is now in
 812         argv form.
 813         (other sim_*): New SIM_DESC argument.
 814
 815 Tue Feb  4 13:35:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 816
 817         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 818         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 819         * configure.in: sinclude ../common/aclocal.m4.
 820         * configure: Regenerated.
 821
 822 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 823
 824         * configure configure.in Makefile.in:  Update to new configure
 825         scheme which is more compatible with WinGDB builds.
 826         * configure.in:  Improve comment on how to run autoconf.
 827         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 828         * Makefile.in:  Use autoconf substitution to install common
 829         makefile fragment.
 830
 831 Wed Dec  4 18:25:04 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 832
 833         * interf.c (run_sim): Stop the simulator and reset the stdio after
 834         breakpoints.
 835
 836 Tue Dec  3 11:54:37 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 837
 838         * configure.in: Look for libtermcap.a.
 839         * Makefile.in: Only link in -ltermcap if it exists.
 840         * erc32.c: Update to version 2.6a. Fix uart handling.
 841         * exec.c: Update to version 2.6a. Add sparclite support.
 842         * float.c: Update to version 2.6a. Convert comments to
 843         preprocessor warnings. Add __setfpucw() for i385 hosts so floating
 844         point exceptions work on win32.
 845         * func.c: Update to version 2.6a. Fix uart handling, add support
 846         for user error traps.
 847         * help.c: Update to version 2.6a. Add help note on user error
 848         traps.
 849         * interf.c: Update to version 2.6a. Fix uart handling, and add
 850         sparclite support.
 851         * examples/gccx: Use sparclite cross compiler, not native gcc.
 852         * examples/srt0.S: Use "mov" rather than "wr" for manipulating
 853         the psr register.
 854
 855 Mon Nov 25 08:28:10 1996  Fred Fish  <fnf@cygnus.com>
 856
 857         * Makefile.in (run.o): Remove this rule, it hides the one in
 858         ../common/Make-common.in that correctly references the source
 859         in the sibling ../common directory.
 860
 861 Wed Nov 20 01:30:12 1996  Doug Evans  <dje@canuck.cygnus.com>
 862
 863         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 864         (SIM_{OBJS,EXTRA_LIBS,EXTRA_LIBDEPS,EXTRA_ALL,EXTRA_INSTALL}): Define.
 865         (SIM_{EXTRA_CLEAN,EXTRA_CFLAGS}): Define.
 866         * configure.in: Simplify using macros in ../common/aclocal.m4.
 867         Call AC_CHECK_HEADERS(stdlib.h).
 868         * configure: Regenerated.
 869         * config.in: New file.
 870         * func.c (sim_set_callbacks): Delete, moved to
 871         * interf.c (sim_set_callbacks): here.
 872         (sim_callback): New global.
 873         Rewrite all calls to printf_filtered to go through callback.
 874         (sim_size,sim_trace): New functions.
 875         (sim_{insert,remove}_breakpoint): #if 0 out.
 876         * sis.c: #include "config.h".  #include <stdlib.h> if present.
 877         (main): Coerce fprintf arg to INIT_DISASSEMBLE_INFO to fprintf_ftype.
 878         * sis.h: #include "callback.h".
 879         * run.c: Deleted, using one in ../common now.
 880
 881 Thu Oct  3 16:12:03 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 882
 883         * Makefile.in (clean): Move config.log to distclean.
 884
 885 Wed Oct  2 16:57:57 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 886
 887         * Makefile.in (clean): Also remove config.log.
 888
 889 Sat Sep 14 00:00:46 1996  Ian Lance Taylor  <ian@cygnus.com>
 890
 891         * Makefile.in (CC_FOR_BUILD): New variable.
 892         (AR, AR_FLAGS, BISON, MAKEINFO): Remove duplicate variables.
 893         (RANLIB, CC): Likewise.
 894         (end): Use $(CC_FOR_BUILD), not $(CC).
 895         * configure.in: Set CC_FOR_BUILD.
 896         * configure: Rebuild.
 897
 898 Sun Sep  8 14:04:37 1996  Stu Grossman  (grossman@critters.cygnus.com)
 899
 900         * erc32.c (port_init):  Disable this for __GO32__ (got no pty's
 901         there either...).
 902
 903 Mon Aug 12 17:04:58 1996  Stu Grossman  (grossman@critters.cygnus.com)
 904
 905         * erc32.c:  Don't include sys/ioctl.h or sys/file.h.  They aren't
 906         necessary.
 907         * (port_init):  Don't even *try* to open pty's under _WIN32.
 908         * Use SIM_ADDR, not caddr_t for declaring vars that hold addresses.
 909         * float.c:  Get rid of #warning.  Makes Microsoft C barf.
 910         * interf.c (sim_open):  Cast fprintf to (fprintf_ftype) to fix
 911         compiler warning.
 912         * (sim_load sim_create_inferior sim_read):  Use prototypes only in
 913         decls, not defs.
 914         * Get rid of enum sim_stop.  It's defined in remote-sim.h.
 915         * (sim_stop_reason):  Define SIGTRAP if _WIN32.
 916         * sis.h:  Include ansidecl.h and remote-sim.h.
 917
 918 Wed Jul  3 16:05:23 1996  Stu Grossman  (grossman@critters.cygnus.com)
 919
 920         * erc32.c (mec_reset mec_read mec_write memory_read memory_write),
 921         sis.h:  Get rid of all uses of long long's.
 922         * (close_port read_uart write_uart uarta_tx):  Don't seg fault
 923         when can't open pty's.
 924         * exec.c:  Add two new instructions: smul, and divscc.
 925         * interf.c (flush_windows):  New routine to flush the register
 926         windows out to the stack just before returning to GDB.  Makes
 927         backtraces work much better.
 928
 929 Wed Jun 26 12:19:11 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 930
 931         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 932         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 933         (docdir, oldincludedir): Removed.
 934         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 935         (AC_PROG_INSTALL): Added.
 936         * configure: Rebuilt.
 937
 938 Mon Jun 24 14:19:07 1996  Ian Lance Taylor  <ian@cygnus.com>
 939
 940         * configure.in: Call AC_PROG_CC before running configure.host.
 941         * configure: Rebuild with autoconf 2.10.
 942
 943 Tue Jun  4 10:37:12 1996  Tom Tromey  <tromey@csk3.cygnus.com>
 944
 945         * Makefile.in (install): Don't check to see if tooldir exists.
 946         Make $(tooldir) and $(tooldir)/bin.
 947
 948 Mon Jun  3 12:33:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 949
 950         * Makefile.in (end.h): Use explicit ./ when running end.
 951
 952 Sun May 19 21:05:31 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 953
 954         * func.c(bfd_load): Don't try to print the filename if the pfbd is
 955         NULL.
 956         * interf.c(sim_load): Pass the whole string, not just the first
 957         byte.
 958
 959 Version 2.1 26-02-96
 960 --------------------
 961
 962 * Fixed bug in "go" command.
 963
 964 version 2.0 05-02-96
 965 --------------------
 966
 967 * Fixed bug in interrupt force register (erc32.c).
 968
 969 * Change file load function to use bfd_openr.
 970
 971 * SIS should now be endian independent.
 972
 973 version 1.8 24-11-95
 974 --------------------
 975
 976 * Fixed FPU timing - some sequences of FPU instructions did not calculate
 977   the resource dependencies right.
 978
 979 * Corrected STDFQ when qne = 0 (again!). The ftt is set to sequence_error
 980   but no FPU trap is generated.
 981
 982 version 1.7.1 31-10-95
 983 --------------------
 984
 985 * Corrected STDFQ when qne = 0. Now, a trap is immidiately generated but
 986   the FPU stays in execute mode.
 987
 988 * Corrected JMPL and RETT timing (these instructions takes two cycles).
 989
 990
 991 version 1.7 25-10-95
 992 --------------------
 993
 994 * Interrupt during annuled instruction corrupted return address - fixed.
 995
 996
 997 version 1.6.2 25-10-95
 998 --------------------
 999
1000 * Added -DFAST_UART to Makefile
1001
1002
1003 version 1.6.1 24-10-95
1004 --------------------
1005
1006 * Fixed bug in STDFQ which caused bus error
1007
1008
1009 version 1.6 02-10-95
1010 --------------------
1011
1012 * Modified srt0.s to include code that initiates registers in IU and FPU
1013   and initializes the data segment. The simulator 'load' command does not
1014   longer initialize the data segment!
1015
1016 * Corrected MEC timer operation; scalers now divide the frequency by
1017   (scaler_value + 1).
1018
1019 * MEC breakpoints are not checked during store operation
1020
1021
1022 version 1.5 14-09-95
1023 --------------------
1024
1025 * Fixed some bugs in the cycle counting for IU & FPU instructions.
1026
1027 * Fixed bug that allowed an annuled instruction to cause memory exception.
1028
1029 * The *ws parameter in mem.c should now contain the number of waitstates
1030   required by the memory access (was total number of cycles).
1031
1032 * The supplied srt0.s now clears the BSS (thanks Joel).
1033
1034 version 1.4 22-08-95
1035 --------------------
1036
1037 * Added a '-g' switch to enable/disable the GNU readline(), which cause
1038 some problems on solaris 2.x machines.
1039
1040 * Enabled MEC watchpoint and breakpoint function to mem.c. Performance
1041 may suffer a bit ...
1042
1043 NOTE: The UARTs are now connected to /dev/ttypc and /dev/ttypd.
1044
1045 version 1.3 26-07-95
1046 --------------------
1047
1048 * Fixed bug in mulscc instruction (how could that ever have worked?)
1049
1050 * Fixed bug in UART B (flushed characters on UART A), thanks Paul.
1051
1052 version 1.2 13-07-95
1053 --------------------
1054
1055 * Fixed bug in interrupt handling (wrong interrupt selected when more that
1056 one interrupt pending)
1057
1058 * Fixed updating of condition codes during logical instructions (carry and
1059 overflow were not reset)
1060
1061 * Fixed bug in WRTBR (tt field was wrongly over-written)
1062
1063 version 1.1 07-07-95
1064 --------------------
1065
1066 * Fixed several bugs in the interrupt handler and callback routines.
1067 (reported by Paul Warren, Alsys)