sim/erc32/ChangeLog

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