sim/erc32/ChangeLog

   1 2000-03-03  Jonathan Larmour  <jlarmour@redhat.co.uk>
   2
   3         * func.c (buffer_read_memory): Change type of size to unsigned to
   4         match prototype
   5
   6 Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
   7
   8         * configure: Regenerated to track ../common/aclocal.m4 changes.
   9
  10 1999-05-08  Felix Lee  <flee@cygnus.com>
  11
  12         * configure: Regenerated to track ../common/aclocal.m4 changes.
  13
  14 1999-03-03  DJ Delorie  <dj@cygnus.com>
  15
  16         * configure.in: add termcap and -luser32 for host=cygwin
  17         * configure: regenerate
  18
  19 1999-02-11  Hugo Tyson  <hmt@cygnus.co.uk>
  20
  21         * exec.c (dispatch_instruction):
  22         Correct the sense of the
  23                   if (!sparclite) {
  24                      sregs->trap = TRAP_UNIMP;
  25                      break;
  26                   }
  27         clause that has been pasted around: it's correct in the SCAN and
  28         DIVScc (divide step) cases (where it was probably originally
  29         written?), but reversed in the SDIV, SDIVcc, UDIV, UDIVcc cases
  30         ie. instructions only in the SPARC V8 or SPARClite 86x
  31         architectures.  It was also present when not required for SMUL,
  32         SMULcc, UMUL, UMULcc instructions that are present in all
  33         architectures.
  34
  35 1999-01-25  Hugo Tyson  <hmt@cygnus.co.uk>
  36
  37         * interf.c (run_sim): Fix a bug in the main loop's handling of
  38         annulled delay slot instructions.  There is precedent for this
  39         change; the _other_ main loop in sis.c gets it right according to
  40         my reading of the code.
  41
  42         The bug is: if an interrupt happens when the next instruction
  43         (at sregs->pc) is annulled, the trap is taken (by execute_trap())
  44         with the current values of PC and NPC, so when the trap returns,
  45         the annulled instruction is indeed executed.  Another giveaway is
  46         that the annul flag is cleared in execute_trap(): the information
  47         is demonstrably discarded.
  48
  49         The solution is: perform annulling before looking for traps, in
  50         fact it's neater to do annulling, see if there's an interrupt and
  51         if not, do the instruction, then handle traps be they generated by
  52         interrupts pending or by the instruction we might just have done.
  53         That's what the sis.c one does.
  54
  55 1999-01-20  Hugo Tyson  <hmt@cygnus.co.uk>
  56
  57         * sis.h: Add asr17 register for support of SparcLITE (at least the
  58         Hitachi ones I find before me)
  59
  60         * exec.c (dispatch_instruction): Case WRY: Allow write of asr17 if
  61         sparclite.  Other ASR numbers than 17 or 0 (Y) trap out.
  62         Case RDY: Allow read of asr17 if sparclite.  Other ASRs ditto.
  63         (execute_trap): Do single-vector-trapping if asr17 bit 0 is set.
  64         (init_regs): Initialize y and asr17.
  65         NB: In instruction-set space, the Y register is asr0; the
  66         instructions have different names for human reasons only.
  67
  68         * sis.c:
  69         * interf.c: Set boolean mode variable dumbio if invoked with
  70         argument "-dumbio" and mention it of verbose.
  71         * erc32.c: if "dumbio" is set, do not assume that there is a
  72         terminal type device attached to stdin/stdout.  Do not set
  73         buffering or mess with tcsetattr or do any read operations in
  74         order to make UART interrupts; not input data is supported.
  75         This is necessary to allow the sim to be used within the eCos
  76         testing infrastructure where stdin/stdout are pipes to a TCL
  77         program; the sim hangs otherwise.
  78
  79 Thu Jul 23 07:17:03 1998  Mark Alexander  <marka@cygnus.com>
  80
  81         * exec.c (dispatch_instruction): Add SPARClite 'scan' instruction.
  82
  83 Tue Jul  7 21:12:41 1998  Mark Alexander  <marka@cygnus.com>
  84
  85         * func.c (bfd_load): Add special handling of a.out executables.
  86
  87 Sat Jun 13 08:33:25 1998  Mark Alexander  <marka@cygnus.com>
  88
  89         * func.c (bfd_load): Print correct endianness.
  90         * interf.c (run_sim): Print debugging information if verbosity level
  91         is greater than 2.
  92         (sim_open): Repeated -v options now increment verbosity level.
  93         (sim_store_register): Handle little-endian case.
  94         (flush_window): Print debugging information if verbosity level
  95         is greater then 2.
  96
  97 Tue Jun  2 15:20:35 1998  Mark Alexander  <marka@cygnus.com>
  98
  99         * interf.c (sim_open): Use revamped memory_read, which makes
 100         byte-swapping unnecessary.  Add -sparclite-board option for
 101         emulating RAM found on typical SPARClite boards.  Print
 102         error message for unrecognized option.
 103         * erc32.c: Change RAM address and size from constants to variables,
 104         to allow emulation of SPARClite board RAM.
 105         (fetch_bytes, store_bytes): New helper functions for revamped
 106         mememory_read and memory_write.
 107         (memory_read, memory_write): Rewrite to store bytes in target
 108         byte order instead of storing words in host byte order; this
 109         greatly simplifies support of little-endian programs.
 110         (get_mem_ptr): Remove unnecessary byte parameter.
 111         (sis_memory_write, sis_memory_read): Store words in target
 112         byte order instead of host byte order.
 113         (byte_swap_words): Remove, no longer needed.
 114         * sis.h ((byte_swap_words): Remove declaration, no longer needed.
 115         (memory_read): Add new sz parameter.
 116         * sis.c (run_sim): Use revamped memory_read, which makes
 117         byte-swapping unnecessary.
 118         * exec.c (dispatch_instruction): Use revamped memory_read, which
 119         makes byte-swapping and double-word fetching unnecessary.
 120         * func.c (sparclite_board): Declare new variable.
 121         (get_regi): Handle little-endian data.
 122         (bfd_load): Recognize little-endian SPARClite as having
 123         little-endian data.
 124
 125 Fri May 22 14:23:16 1998  Mark Alexander  <marka@cygnus.com>
 126
 127         * erc32.c (port_init): Print messages only if sis_verbose is true.
 128         * func.c (bfd_load): Ditto.
 129         * interf.c (sim_open): Ditto.
 130
 131 Thu May 14 23:10:48 1998  Mark Alexander  <marka@cygnus.com>
 132
 133         * sis.h (uint64, int64): Define.
 134         * exec.c (SDIV, SDIVCC, UDIV, UDIVCC): Define new opcodes.
 135         * (mul64): Simplify calculation of negative result.
 136         * (div64): New helper function for 64-bit division.
 137         * (dispatch_instruction): Add emulation of SDIV, SDIVCC, UDIV,
 138         and UDIVCC.
 139
 140 Wed May 13 14:59:54 1998  Mark Alexander  <marka@cygnus.com>
 141
 142         * erc32.c (close_port): Don't close stdin; it kills GDB.
 143         (byte_swap_words): New function.
 144         * sis.h: (byte_swap_words): Declare.
 145         * interf.c (run_sim): Always fetch instructions as big-endian.
 146         * sis.c (run_sim): Ditto.
 147
 148 Tue Apr 28 18:33:31 1998  Geoffrey Noer  <noer@cygnus.com>
 149
 150         * configure: Regenerated to track ../common/aclocal.m4 changes.
 151
 152 Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>
 153
 154         * configure: Regenerated to track ../common/aclocal.m4 changes.
 155         * config.in: Ditto.
 156
 157 Sun Apr 26 15:20:17 1998  Tom Tromey  <tromey@cygnus.com>
 158
 159         * acconfig.h: New file.
 160         * configure.in: Reverted change of Apr 24; use sinclude again.
 161
 162 Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>
 163
 164         * configure: Regenerated to track ../common/aclocal.m4 changes.
 165         * config.in: Ditto.
 166
 167 Fri Apr 24 11:19:52 1998  Tom Tromey  <tromey@cygnus.com>
 168
 169         * configure.in: Don't call sinclude.
 170
 171 Sat Apr 18 12:00:16 1998  Mark Alexander  <marka@cygnus.com>
 172
 173         * func.c (disp_fpu): Fix build problem on big-endian hosts.
 174
 175 Wed Apr  8 19:33:34 1998  Mark Alexander  <marka@cygnus.com>
 176
 177         * erc32.c (sim_stop): Handle SIGINT gracefully.
 178         * interf.c (sim_open): Don't catch SIGINT; GDB will do that for us.
 179
 180 Wed Apr  8 18:29:40 1998  Mark Alexander  <marka@cygnus.com>
 181
 182         * exec.c (dispatch_instruction): Change how carry out is calculated
 183         in DIVSCC.  Add emulation of SMULCC, UMUL, and UMULCC.
 184
 185 Sat Apr  4 20:36:25 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 186
 187         * configure: Regenerated to track ../common/aclocal.m4 changes.
 188
 189 Wed Apr  1 21:19:18 1998  Mark Alexander  <marka@cygnus.com>
 190
 191         * end.c: Update to version 2.7.5, fix compiler warnings and bugs.
 192         * erc32.c: Ditto.
 193         * exec.c: Ditto.
 194         * float.c: Ditto.
 195         * func.c: Ditto.
 196         * help.c: Ditto.
 197         * interf.c: Ditto.
 198         * sis.c: Ditto.
 199         * sis.h: Ditto.
 200
 201 Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 202
 203         * configure: Regenerated to track ../common/aclocal.m4 changes.
 204
 205 Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 206
 207         * configure: Regenerated to track ../common/aclocal.m4 changes.
 208
 209 Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 210
 211         * configure: Regenerated to track ../common/aclocal.m4 changes.
 212
 213 Tue Feb 17 12:41:11 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 214
 215         * interf.c (sim_store_register, sim_fetch_register): Pass in
 216         length parameter.  Return -1.
 217
 218 Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 219
 220         * configure: Regenerated to track ../common/aclocal.m4 changes.
 221
 222 Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 223
 224         * configure: Regenerated to track ../common/aclocal.m4 changes.
 225
 226 Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
 227
 228         * configure: Regenerated to track ../common/aclocal.m4 changes.
 229
 230 Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 231
 232         * configure: Regenerated to track ../common/aclocal.m4 changes.
 233         * config.in: Ditto.
 234
 235 Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
 236
 237         * configure: Regenerated to track ../common/aclocal.m4 changes.
 238
 239 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 240
 241         * configure: Regenerated to track ../common/aclocal.m4 changes.
 242
 243 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 244
 245         * configure: Regenerated to track ../common/aclocal.m4 changes.
 246
 247 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 248
 249         * configure: Regenerated to track ../common/aclocal.m4 changes.
 250
 251 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 252
 253         * configure: Regenerated to track ../common/aclocal.m4 changes.
 254
 255 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 256
 257         * configure: Regenerated to track ../common/aclocal.m4 changes.
 258
 259 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 260
 261         * configure: Regenerated to track ../common/aclocal.m4 changes.
 262
 263 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 264
 265         * configure: Regenerated to track ../common/aclocal.m4 changes.
 266         * config.in: Ditto.
 267
 268 Tue Aug 26 10:38:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 269
 270         * float.c (__setfpucw): Compile on any i386 target.  Not just NT.
 271
 272         * interf.c (sim_kill): Delete.
 273         (sim_create_inferior): Add ABFD argument.  Initialize PC from ABFD
 274         argument.
 275         (sim_load): Don't save start address.
 276         (start_address): Delete variable.
 277
 278 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 279
 280         * configure: Regenerated to track ../common/aclocal.m4 changes.
 281         * config.in: Ditto.
 282
 283 Mon Aug 25 16:19:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 284
 285         * interf.c (sim_open): Add ABFD argument. Change ARGV to PARGV.
 286
 287 Mon Jun 30 11:45:25 1997  Doug Evans  <dje@canuck.cygnus.com>
 288
 289         * Makefile.in (install-sis): Change $(srcdir)/sis to sis.
 290
 291 Wed May 28 09:46:13 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 292
 293         * interf.c (sim_set_callbacks): Drop SD argument - not applicable.
 294         (sim_open): Add callback arg, save it.
 295
 296 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 297
 298         * configure: Regenerated to track ../common/aclocal.m4 changes.
 299
 300 Tue Apr 22 11:05:01 1997  Doug Evans  <dje@canuck.cygnus.com>
 301
 302         * interf.c (sim_open): Undo patch to add -E support.
 303
 304 Thu Apr 17 03:03:56 1997  Doug Evans  <dje@canuck.cygnus.com>
 305
 306         * interf.c (sim_open): Ignore -E arg.
 307         (start_address): New static local.
 308         (sim_load): Return SIM_RC.  New arg abfd.  Set start_address from bfd.
 309         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 310
 311 Tue Apr 15 15:16:11 1997  Ian Lance Taylor  <ian@cygnus.com>
 312
 313         * Makefile.in (install-sis): Depend upon installdirs.  Use
 314         $(program_transform_name) directly, rather than using
 315         $(INSTALL_XFORM).
 316
 317 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 318
 319         * configure: Regenerated to track ../common/aclocal.m4 changes.
 320         * config.in: Ditto.
 321
 322 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 323
 324         * interf.c (sim_open): New arg `kind'.
 325
 326         * configure: Regenerated to track ../common/aclocal.m4 changes.
 327
 328 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 329
 330         * configure: Regenerated to track ../common/aclocal.m4 changes.
 331
 332 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 333
 334         * configure: Re-generate.
 335
 336 Thu Mar 13 12:46:04 1997  Doug Evans  <dje@canuck.cygnus.com>
 337
 338         * interf.c (sim_open): New SIM_DESC result.  Argument is now in
 339         argv form.
 340         (other sim_*): New SIM_DESC argument.
 341
 342 Tue Feb  4 13:35:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 343
 344         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 345         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 346         * configure.in: sinclude ../common/aclocal.m4.
 347         * configure: Regenerated.
 348
 349 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 350
 351         * configure configure.in Makefile.in:  Update to new configure
 352         scheme which is more compatible with WinGDB builds.
 353         * configure.in:  Improve comment on how to run autoconf.
 354         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 355         * Makefile.in:  Use autoconf substitution to install common
 356         makefile fragment.
 357
 358 Wed Dec  4 18:25:04 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 359
 360         * interf.c (run_sim): Stop the simulator and reset the stdio after
 361         breakpoints.
 362
 363 Tue Dec  3 11:54:37 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 364
 365         * configure.in: Look for libtermcap.a.
 366         * Makefile.in: Only link in -ltermcap if it exists.
 367         * erc32.c: Update to version 2.6a. Fix uart handling.
 368         * exec.c: Update to version 2.6a. Add sparclite support.
 369         * float.c: Update to version 2.6a. Convert comments to
 370         preprocessor warnings. Add __setfpucw() for i385 hosts so floating
 371         point exceptions work on win32.
 372         * func.c: Update to version 2.6a. Fix uart handling, add support
 373         for user error traps.
 374         * help.c: Update to version 2.6a. Add help note on user error
 375         traps.
 376         * interf.c: Update to version 2.6a. Fix uart handling, and add
 377         sparclite support.
 378         * examples/gccx: Use sparclite cross compiler, not native gcc.
 379         * examples/srt0.S: Use "mov" rather than "wr" for manipulating
 380         the psr register.
 381
 382 Mon Nov 25 08:28:10 1996  Fred Fish  <fnf@cygnus.com>
 383
 384         * Makefile.in (run.o): Remove this rule, it hides the one in
 385         ../common/Make-common.in that correctly references the source
 386         in the sibling ../common directory.
 387
 388 Wed Nov 20 01:30:12 1996  Doug Evans  <dje@canuck.cygnus.com>
 389
 390         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 391         (SIM_{OBJS,EXTRA_LIBS,EXTRA_LIBDEPS,EXTRA_ALL,EXTRA_INSTALL}): Define.
 392         (SIM_{EXTRA_CLEAN,EXTRA_CFLAGS}): Define.
 393         * configure.in: Simplify using macros in ../common/aclocal.m4.
 394         Call AC_CHECK_HEADERS(stdlib.h).
 395         * configure: Regenerated.
 396         * config.in: New file.
 397         * func.c (sim_set_callbacks): Delete, moved to
 398         * interf.c (sim_set_callbacks): here.
 399         (sim_callback): New global.
 400         Rewrite all calls to printf_filtered to go through callback.
 401         (sim_size,sim_trace): New functions.
 402         (sim_{insert,remove}_breakpoint): #if 0 out.
 403         * sis.c: #include "config.h".  #include <stdlib.h> if present.
 404         (main): Coerce fprintf arg to INIT_DISASSEMBLE_INFO to fprintf_ftype.
 405         * sis.h: #include "callback.h".
 406         * run.c: Deleted, using one in ../common now.
 407
 408 Thu Oct  3 16:12:03 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 409
 410         * Makefile.in (clean): Move config.log to distclean.
 411
 412 Wed Oct  2 16:57:57 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 413
 414         * Makefile.in (clean): Also remove config.log.
 415
 416 Sat Sep 14 00:00:46 1996  Ian Lance Taylor  <ian@cygnus.com>
 417
 418         * Makefile.in (CC_FOR_BUILD): New variable.
 419         (AR, AR_FLAGS, BISON, MAKEINFO): Remove duplicate variables.
 420         (RANLIB, CC): Likewise.
 421         (end): Use $(CC_FOR_BUILD), not $(CC).
 422         * configure.in: Set CC_FOR_BUILD.
 423         * configure: Rebuild.
 424
 425 Sun Sep  8 14:04:37 1996  Stu Grossman  (grossman@critters.cygnus.com)
 426
 427         * erc32.c (port_init):  Disable this for __GO32__ (got no pty's
 428         there either...).
 429
 430 Mon Aug 12 17:04:58 1996  Stu Grossman  (grossman@critters.cygnus.com)
 431
 432         * erc32.c:  Don't include sys/ioctl.h or sys/file.h.  They aren't
 433         necessary.
 434         * (port_init):  Don't even *try* to open pty's under _WIN32.
 435         * Use SIM_ADDR, not caddr_t for declaring vars that hold addresses.
 436         * float.c:  Get rid of #warning.  Makes Microsoft C barf.
 437         * interf.c (sim_open):  Cast fprintf to (fprintf_ftype) to fix
 438         compiler warning.
 439         * (sim_load sim_create_inferior sim_read):  Use prototypes only in
 440         decls, not defs.
 441         * Get rid of enum sim_stop.  It's defined in remote-sim.h.
 442         * (sim_stop_reason):  Define SIGTRAP if _WIN32.
 443         * sis.h:  Include ansidecl.h and remote-sim.h.
 444
 445 Wed Jul  3 16:05:23 1996  Stu Grossman  (grossman@critters.cygnus.com)
 446
 447         * erc32.c (mec_reset mec_read mec_write memory_read memory_write),
 448         sis.h:  Get rid of all uses of long long's.
 449         * (close_port read_uart write_uart uarta_tx):  Don't seg fault
 450         when can't open pty's.
 451         * exec.c:  Add two new instructions: smul, and divscc.
 452         * interf.c (flush_windows):  New routine to flush the register
 453         windows out to the stack just before returning to GDB.  Makes
 454         backtraces work much better.
 455
 456 Wed Jun 26 12:19:11 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 457
 458         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 459         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 460         (docdir, oldincludedir): Removed.
 461         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 462         (AC_PROG_INSTALL): Added.
 463         * configure: Rebuilt.
 464
 465 Mon Jun 24 14:19:07 1996  Ian Lance Taylor  <ian@cygnus.com>
 466
 467         * configure.in: Call AC_PROG_CC before running configure.host.
 468         * configure: Rebuild with autoconf 2.10.
 469
 470 Tue Jun  4 10:37:12 1996  Tom Tromey  <tromey@csk3.cygnus.com>
 471
 472         * Makefile.in (install): Don't check to see if tooldir exists.
 473         Make $(tooldir) and $(tooldir)/bin.
 474
 475 Mon Jun  3 12:33:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 476
 477         * Makefile.in (end.h): Use explicit ./ when running end.
 478
 479 Sun May 19 21:05:31 1996  Rob Savoye  <rob@chinadoll.cygnus.com>
 480
 481         * func.c(bfd_load): Don't try to print the filename if the pfbd is
 482         NULL.
 483         * interf.c(sim_load): Pass the whole string, not just the first
 484         byte.
 485
 486 Version 2.1 26-02-96
 487 --------------------
 488
 489 * Fixed bug in "go" command.
 490
 491 version 2.0 05-02-96
 492 --------------------
 493
 494 * Fixed bug in interrupt force register (erc32.c).
 495
 496 * Change file load function to use bfd_openr.
 497
 498 * SIS should now be endian independent.
 499
 500 version 1.8 24-11-95
 501 --------------------
 502
 503 * Fixed FPU timing - some sequences of FPU instructions did not calculate
 504   the resource dependencies right.
 505
 506 * Corrected STDFQ when qne = 0 (again!). The ftt is set to sequence_error
 507   but no FPU trap is generated.
 508
 509 version 1.7.1 31-10-95
 510 --------------------
 511
 512 * Corrected STDFQ when qne = 0. Now, a trap is immidiately generated but
 513   the FPU stays in execute mode.
 514
 515 * Corrected JMPL and RETT timing (these instructions takes two cycles).
 516
 517
 518 version 1.7 25-10-95
 519 --------------------
 520
 521 * Interrupt during annuled instruction corrupted return address - fixed.
 522
 523
 524 version 1.6.2 25-10-95
 525 --------------------
 526
 527 * Added -DFAST_UART to Makefile
 528
 529
 530 version 1.6.1 24-10-95
 531 --------------------
 532
 533 * Fixed bug in STDFQ which caused bus error
 534
 535
 536 version 1.6 02-10-95
 537 --------------------
 538
 539 * Modified srt0.s to include code that initiates registers in IU and FPU
 540   and initializes the data segment. The simulator 'load' command does not
 541   longer initialize the data segment!
 542
 543 * Corrected MEC timer operation; scalers now divide the frequency by
 544   (scaler_value + 1).
 545
 546 * MEC breakpoints are not checked during store operation
 547
 548
 549 version 1.5 14-09-95
 550 --------------------
 551
 552 * Fixed some bugs in the cycle counting for IU & FPU instructions.
 553
 554 * Fixed bug that allowed an annuled instruction to cause memory exception.
 555
 556 * The *ws parameter in mem.c should now contain the number of waitstates
 557   required by the memory access (was total number of cycles).
 558
 559 * The supplied srt0.s now clears the BSS (thanks Joel).
 560
 561 version 1.4 22-08-95
 562 --------------------
 563
 564 * Added a '-g' switch to enable/disable the GNU readline(), which cause
 565 some problems on solaris 2.x machines.
 566
 567 * Enabled MEC watchpoint and breakpoint function to mem.c. Performance
 568 may suffer a bit ...
 569
 570 NOTE: The UARTs are now connected to /dev/ttypc and /dev/ttypd.
 571
 572 version 1.3 26-07-95
 573 --------------------
 574
 575 * Fixed bug in mulscc instruction (how could that ever have worked?)
 576
 577 * Fixed bug in UART B (flushed characters on UART A), thanks Paul.
 578
 579 version 1.2 13-07-95
 580 --------------------
 581
 582 * Fixed bug in interrupt handling (wrong interrupt selected when more that
 583 one interrupt pending)
 584
 585 * Fixed updating of condition codes during logical instructions (carry and
 586 overflow were not reset)
 587
 588 * Fixed bug in WRTBR (tt field was wrongly over-written)
 589
 590 version 1.1 07-07-95
 591 --------------------
 592
 593 * Fixed several bugs in the interrupt handler and callback routines.
 594 (reported by Paul Warren, Alsys)