1 2005-01-14 Andrew Cagney <cagney@gnu.org>
3 * configure.ac: Sinclude aclocal.m4 before common.m4. Add
4 explicit call to AC_CONFIG_HEADER.
5 * configure: Regenerate.
7 2005-01-12 Andrew Cagney <cagney@gnu.org>
9 * configure.ac: Update to use ../common/common.m4.
10 * configure: Re-generate.
12 2005-01-11 Andrew Cagney <cagney@localhost.localdomain>
14 * configure: Regenerated to track ../common/aclocal.m4 changes.
16 2005-01-07 Andrew Cagney <cagney@gnu.org>
18 * configure.ac: Rename configure.in, require autoconf 2.59.
19 * configure: Re-generate.
21 2004-12-08 Hans-Peter Nilsson <hp@axis.com>
23 * configure: Regenerate for ../common/aclocal.m4 update.
25 2004-11-11 Andreas Schwab <schwab@suse.de>
27 * interf.c: Include "libiberty.h" instead of declaring buildargv
30 2003-02-27 Andrew Cagney <cagney@redhat.com>
32 * interf.c (sim_open, sim_create_inferior): Rename _bfd to bfd.
34 2002-06-16 Andrew Cagney <ac131313@redhat.com>
36 * configure: Regenerated to track ../common/aclocal.m4 changes.
38 2002-06-08 Andrew Cagney <cagney@redhat.com>
40 * sis.h: Include "gdb/remote-sim.h" and "gdb/callback.h".
41 * interf.c: Include "gdb/remote-sim.h".
43 Tue May 23 21:39:23 2000 Andrew Cagney <cagney@b1.cygnus.com>
45 * configure: Regenerated to track ../common/aclocal.m4 changes.
47 2000-03-07 Frank Ch. Eigler <fche@redhat.com>
49 From John Dallaway <jld@redhat.co.uk>:
50 * Makefile.in (install-sis): Add $(EXEEXT) for Windows host.
52 2000-03-03 Jonathan Larmour <jlarmour@redhat.co.uk>
54 * func.c (buffer_read_memory): Change type of size to unsigned to
57 Thu Sep 2 18:15:53 1999 Andrew Cagney <cagney@b1.cygnus.com>
59 * configure: Regenerated to track ../common/aclocal.m4 changes.
61 1999-05-08 Felix Lee <flee@cygnus.com>
63 * configure: Regenerated to track ../common/aclocal.m4 changes.
65 1999-03-03 DJ Delorie <dj@cygnus.com>
67 * configure.in: add termcap and -luser32 for host=cygwin
68 * configure: regenerate
70 1999-02-11 Hugo Tyson <hmt@cygnus.co.uk>
72 * exec.c (dispatch_instruction):
73 Correct the sense of the
75 sregs->trap = TRAP_UNIMP;
78 clause that has been pasted around: it's correct in the SCAN and
79 DIVScc (divide step) cases (where it was probably originally
80 written?), but reversed in the SDIV, SDIVcc, UDIV, UDIVcc cases
81 ie. instructions only in the SPARC V8 or SPARClite 86x
82 architectures. It was also present when not required for SMUL,
83 SMULcc, UMUL, UMULcc instructions that are present in all
86 1999-01-25 Hugo Tyson <hmt@cygnus.co.uk>
88 * interf.c (run_sim): Fix a bug in the main loop's handling of
89 annulled delay slot instructions. There is precedent for this
90 change; the _other_ main loop in sis.c gets it right according to
91 my reading of the code.
93 The bug is: if an interrupt happens when the next instruction
94 (at sregs->pc) is annulled, the trap is taken (by execute_trap())
95 with the current values of PC and NPC, so when the trap returns,
96 the annulled instruction is indeed executed. Another giveaway is
97 that the annul flag is cleared in execute_trap(): the information
98 is demonstrably discarded.
100 The solution is: perform annulling before looking for traps, in
101 fact it's neater to do annulling, see if there's an interrupt and
102 if not, do the instruction, then handle traps be they generated by
103 interrupts pending or by the instruction we might just have done.
104 That's what the sis.c one does.
106 1999-01-20 Hugo Tyson <hmt@cygnus.co.uk>
108 * sis.h: Add asr17 register for support of SparcLITE (at least the
109 Hitachi ones I find before me)
111 * exec.c (dispatch_instruction): Case WRY: Allow write of asr17 if
112 sparclite. Other ASR numbers than 17 or 0 (Y) trap out.
113 Case RDY: Allow read of asr17 if sparclite. Other ASRs ditto.
114 (execute_trap): Do single-vector-trapping if asr17 bit 0 is set.
115 (init_regs): Initialize y and asr17.
116 NB: In instruction-set space, the Y register is asr0; the
117 instructions have different names for human reasons only.
120 * interf.c: Set boolean mode variable dumbio if invoked with
121 argument "-dumbio" and mention it of verbose.
122 * erc32.c: if "dumbio" is set, do not assume that there is a
123 terminal type device attached to stdin/stdout. Do not set
124 buffering or mess with tcsetattr or do any read operations in
125 order to make UART interrupts; not input data is supported.
126 This is necessary to allow the sim to be used within the eCos
127 testing infrastructure where stdin/stdout are pipes to a TCL
128 program; the sim hangs otherwise.
130 Thu Jul 23 07:17:03 1998 Mark Alexander <marka@cygnus.com>
132 * exec.c (dispatch_instruction): Add SPARClite 'scan' instruction.
134 Tue Jul 7 21:12:41 1998 Mark Alexander <marka@cygnus.com>
136 * func.c (bfd_load): Add special handling of a.out executables.
138 Sat Jun 13 08:33:25 1998 Mark Alexander <marka@cygnus.com>
140 * func.c (bfd_load): Print correct endianness.
141 * interf.c (run_sim): Print debugging information if verbosity level
143 (sim_open): Repeated -v options now increment verbosity level.
144 (sim_store_register): Handle little-endian case.
145 (flush_window): Print debugging information if verbosity level
148 Tue Jun 2 15:20:35 1998 Mark Alexander <marka@cygnus.com>
150 * interf.c (sim_open): Use revamped memory_read, which makes
151 byte-swapping unnecessary. Add -sparclite-board option for
152 emulating RAM found on typical SPARClite boards. Print
153 error message for unrecognized option.
154 * erc32.c: Change RAM address and size from constants to variables,
155 to allow emulation of SPARClite board RAM.
156 (fetch_bytes, store_bytes): New helper functions for revamped
157 mememory_read and memory_write.
158 (memory_read, memory_write): Rewrite to store bytes in target
159 byte order instead of storing words in host byte order; this
160 greatly simplifies support of little-endian programs.
161 (get_mem_ptr): Remove unnecessary byte parameter.
162 (sis_memory_write, sis_memory_read): Store words in target
163 byte order instead of host byte order.
164 (byte_swap_words): Remove, no longer needed.
165 * sis.h ((byte_swap_words): Remove declaration, no longer needed.
166 (memory_read): Add new sz parameter.
167 * sis.c (run_sim): Use revamped memory_read, which makes
168 byte-swapping unnecessary.
169 * exec.c (dispatch_instruction): Use revamped memory_read, which
170 makes byte-swapping and double-word fetching unnecessary.
171 * func.c (sparclite_board): Declare new variable.
172 (get_regi): Handle little-endian data.
173 (bfd_load): Recognize little-endian SPARClite as having
176 Fri May 22 14:23:16 1998 Mark Alexander <marka@cygnus.com>
178 * erc32.c (port_init): Print messages only if sis_verbose is true.
179 * func.c (bfd_load): Ditto.
180 * interf.c (sim_open): Ditto.
182 Thu May 14 23:10:48 1998 Mark Alexander <marka@cygnus.com>
184 * sis.h (uint64, int64): Define.
185 * exec.c (SDIV, SDIVCC, UDIV, UDIVCC): Define new opcodes.
186 * (mul64): Simplify calculation of negative result.
187 * (div64): New helper function for 64-bit division.
188 * (dispatch_instruction): Add emulation of SDIV, SDIVCC, UDIV,
191 Wed May 13 14:59:54 1998 Mark Alexander <marka@cygnus.com>
193 * erc32.c (close_port): Don't close stdin; it kills GDB.
194 (byte_swap_words): New function.
195 * sis.h: (byte_swap_words): Declare.
196 * interf.c (run_sim): Always fetch instructions as big-endian.
197 * sis.c (run_sim): Ditto.
199 Tue Apr 28 18:33:31 1998 Geoffrey Noer <noer@cygnus.com>
201 * configure: Regenerated to track ../common/aclocal.m4 changes.
203 Sun Apr 26 15:31:55 1998 Tom Tromey <tromey@creche>
205 * configure: Regenerated to track ../common/aclocal.m4 changes.
208 Sun Apr 26 15:20:17 1998 Tom Tromey <tromey@cygnus.com>
210 * acconfig.h: New file.
211 * configure.in: Reverted change of Apr 24; use sinclude again.
213 Fri Apr 24 14:16:40 1998 Tom Tromey <tromey@creche>
215 * configure: Regenerated to track ../common/aclocal.m4 changes.
218 Fri Apr 24 11:19:52 1998 Tom Tromey <tromey@cygnus.com>
220 * configure.in: Don't call sinclude.
222 Sat Apr 18 12:00:16 1998 Mark Alexander <marka@cygnus.com>
224 * func.c (disp_fpu): Fix build problem on big-endian hosts.
226 Wed Apr 8 19:33:34 1998 Mark Alexander <marka@cygnus.com>
228 * erc32.c (sim_stop): Handle SIGINT gracefully.
229 * interf.c (sim_open): Don't catch SIGINT; GDB will do that for us.
231 Wed Apr 8 18:29:40 1998 Mark Alexander <marka@cygnus.com>
233 * exec.c (dispatch_instruction): Change how carry out is calculated
234 in DIVSCC. Add emulation of SMULCC, UMUL, and UMULCC.
236 Sat Apr 4 20:36:25 1998 Andrew Cagney <cagney@b1.cygnus.com>
238 * configure: Regenerated to track ../common/aclocal.m4 changes.
240 Wed Apr 1 21:19:18 1998 Mark Alexander <marka@cygnus.com>
242 * end.c: Update to version 2.7.5, fix compiler warnings and bugs.
252 Fri Mar 27 16:15:52 1998 Andrew Cagney <cagney@b1.cygnus.com>
254 * configure: Regenerated to track ../common/aclocal.m4 changes.
256 Wed Mar 25 12:35:29 1998 Andrew Cagney <cagney@b1.cygnus.com>
258 * configure: Regenerated to track ../common/aclocal.m4 changes.
260 Wed Mar 18 12:38:12 1998 Andrew Cagney <cagney@b1.cygnus.com>
262 * configure: Regenerated to track ../common/aclocal.m4 changes.
264 Tue Feb 17 12:41:11 1998 Andrew Cagney <cagney@b1.cygnus.com>
266 * interf.c (sim_store_register, sim_fetch_register): Pass in
267 length parameter. Return -1.
269 Sun Feb 1 16:47:51 1998 Andrew Cagney <cagney@b1.cygnus.com>
271 * configure: Regenerated to track ../common/aclocal.m4 changes.
273 Sat Jan 31 18:15:41 1998 Andrew Cagney <cagney@b1.cygnus.com>
275 * configure: Regenerated to track ../common/aclocal.m4 changes.
277 Mon Jan 19 22:26:29 1998 Doug Evans <devans@seba>
279 * configure: Regenerated to track ../common/aclocal.m4 changes.
281 Mon Dec 15 23:17:11 1997 Andrew Cagney <cagney@b1.cygnus.com>
283 * configure: Regenerated to track ../common/aclocal.m4 changes.
286 Thu Dec 4 09:21:05 1997 Doug Evans <devans@canuck.cygnus.com>
288 * configure: Regenerated to track ../common/aclocal.m4 changes.
290 Fri Oct 3 09:28:00 1997 Andrew Cagney <cagney@b1.cygnus.com>
292 * configure: Regenerated to track ../common/aclocal.m4 changes.
294 Wed Sep 24 17:38:57 1997 Andrew Cagney <cagney@b1.cygnus.com>
296 * configure: Regenerated to track ../common/aclocal.m4 changes.
298 Tue Sep 23 11:04:38 1997 Andrew Cagney <cagney@b1.cygnus.com>
300 * configure: Regenerated to track ../common/aclocal.m4 changes.
302 Mon Sep 22 11:46:20 1997 Andrew Cagney <cagney@b1.cygnus.com>
304 * configure: Regenerated to track ../common/aclocal.m4 changes.
306 Fri Sep 19 17:45:25 1997 Andrew Cagney <cagney@b1.cygnus.com>
308 * configure: Regenerated to track ../common/aclocal.m4 changes.
310 Mon Sep 15 17:36:15 1997 Andrew Cagney <cagney@b1.cygnus.com>
312 * configure: Regenerated to track ../common/aclocal.m4 changes.
314 Wed Aug 27 18:13:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
316 * configure: Regenerated to track ../common/aclocal.m4 changes.
319 Tue Aug 26 10:38:20 1997 Andrew Cagney <cagney@b1.cygnus.com>
321 * float.c (__setfpucw): Compile on any i386 target. Not just NT.
323 * interf.c (sim_kill): Delete.
324 (sim_create_inferior): Add ABFD argument. Initialize PC from ABFD
326 (sim_load): Don't save start address.
327 (start_address): Delete variable.
329 Mon Aug 25 17:50:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
331 * configure: Regenerated to track ../common/aclocal.m4 changes.
334 Mon Aug 25 16:19:49 1997 Andrew Cagney <cagney@b1.cygnus.com>
336 * interf.c (sim_open): Add ABFD argument. Change ARGV to PARGV.
338 Mon Jun 30 11:45:25 1997 Doug Evans <dje@canuck.cygnus.com>
340 * Makefile.in (install-sis): Change $(srcdir)/sis to sis.
342 Wed May 28 09:46:13 1997 Andrew Cagney <cagney@b1.cygnus.com>
344 * interf.c (sim_set_callbacks): Drop SD argument - not applicable.
345 (sim_open): Add callback arg, save it.
347 Thu Apr 24 00:39:51 1997 Doug Evans <dje@canuck.cygnus.com>
349 * configure: Regenerated to track ../common/aclocal.m4 changes.
351 Tue Apr 22 11:05:01 1997 Doug Evans <dje@canuck.cygnus.com>
353 * interf.c (sim_open): Undo patch to add -E support.
355 Thu Apr 17 03:03:56 1997 Doug Evans <dje@canuck.cygnus.com>
357 * interf.c (sim_open): Ignore -E arg.
358 (start_address): New static local.
359 (sim_load): Return SIM_RC. New arg abfd. Set start_address from bfd.
360 (sim_create_inferior): Return SIM_RC. Delete arg start_address.
362 Tue Apr 15 15:16:11 1997 Ian Lance Taylor <ian@cygnus.com>
364 * Makefile.in (install-sis): Depend upon installdirs. Use
365 $(program_transform_name) directly, rather than using
368 Mon Apr 7 15:45:02 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
370 * configure: Regenerated to track ../common/aclocal.m4 changes.
373 Wed Apr 2 15:06:28 1997 Doug Evans <dje@canuck.cygnus.com>
375 * interf.c (sim_open): New arg `kind'.
377 * configure: Regenerated to track ../common/aclocal.m4 changes.
379 Wed Apr 2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
381 * configure: Regenerated to track ../common/aclocal.m4 changes.
383 Mon Mar 17 15:10:07 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
385 * configure: Re-generate.
387 Thu Mar 13 12:46:04 1997 Doug Evans <dje@canuck.cygnus.com>
389 * interf.c (sim_open): New SIM_DESC result. Argument is now in
391 (other sim_*): New SIM_DESC argument.
393 Tue Feb 4 13:35:20 1997 Doug Evans <dje@canuck.cygnus.com>
395 * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
396 COMMON_{PRE,POST}_CONFIG_FRAG instead.
397 * configure.in: sinclude ../common/aclocal.m4.
398 * configure: Regenerated.
400 Thu Jan 23 11:46:23 1997 Stu Grossman (grossman@critters.cygnus.com)
402 * configure configure.in Makefile.in: Update to new configure
403 scheme which is more compatible with WinGDB builds.
404 * configure.in: Improve comment on how to run autoconf.
405 * configure: Re-run autoconf to get new ../common/aclocal.m4.
406 * Makefile.in: Use autoconf substitution to install common
409 Wed Dec 4 18:25:04 1996 Rob Savoye <rob@chinadoll.cygnus.com>
411 * interf.c (run_sim): Stop the simulator and reset the stdio after
414 Tue Dec 3 11:54:37 1996 Rob Savoye <rob@chinadoll.cygnus.com>
416 * configure.in: Look for libtermcap.a.
417 * Makefile.in: Only link in -ltermcap if it exists.
418 * erc32.c: Update to version 2.6a. Fix uart handling.
419 * exec.c: Update to version 2.6a. Add sparclite support.
420 * float.c: Update to version 2.6a. Convert comments to
421 preprocessor warnings. Add __setfpucw() for i385 hosts so floating
422 point exceptions work on win32.
423 * func.c: Update to version 2.6a. Fix uart handling, add support
424 for user error traps.
425 * help.c: Update to version 2.6a. Add help note on user error
427 * interf.c: Update to version 2.6a. Fix uart handling, and add
429 * examples/gccx: Use sparclite cross compiler, not native gcc.
430 * examples/srt0.S: Use "mov" rather than "wr" for manipulating
433 Mon Nov 25 08:28:10 1996 Fred Fish <fnf@cygnus.com>
435 * Makefile.in (run.o): Remove this rule, it hides the one in
436 ../common/Make-common.in that correctly references the source
437 in the sibling ../common directory.
439 Wed Nov 20 01:30:12 1996 Doug Evans <dje@canuck.cygnus.com>
441 * Makefile.in: Delete stuff moved to ../common/Make-common.in.
442 (SIM_{OBJS,EXTRA_LIBS,EXTRA_LIBDEPS,EXTRA_ALL,EXTRA_INSTALL}): Define.
443 (SIM_{EXTRA_CLEAN,EXTRA_CFLAGS}): Define.
444 * configure.in: Simplify using macros in ../common/aclocal.m4.
445 Call AC_CHECK_HEADERS(stdlib.h).
446 * configure: Regenerated.
447 * config.in: New file.
448 * func.c (sim_set_callbacks): Delete, moved to
449 * interf.c (sim_set_callbacks): here.
450 (sim_callback): New global.
451 Rewrite all calls to printf_filtered to go through callback.
452 (sim_size,sim_trace): New functions.
453 (sim_{insert,remove}_breakpoint): #if 0 out.
454 * sis.c: #include "config.h". #include <stdlib.h> if present.
455 (main): Coerce fprintf arg to INIT_DISASSEMBLE_INFO to fprintf_ftype.
456 * sis.h: #include "callback.h".
457 * run.c: Deleted, using one in ../common now.
459 Thu Oct 3 16:12:03 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
461 * Makefile.in (clean): Move config.log to distclean.
463 Wed Oct 2 16:57:57 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
465 * Makefile.in (clean): Also remove config.log.
467 Sat Sep 14 00:00:46 1996 Ian Lance Taylor <ian@cygnus.com>
469 * Makefile.in (CC_FOR_BUILD): New variable.
470 (AR, AR_FLAGS, BISON, MAKEINFO): Remove duplicate variables.
471 (RANLIB, CC): Likewise.
472 (end): Use $(CC_FOR_BUILD), not $(CC).
473 * configure.in: Set CC_FOR_BUILD.
474 * configure: Rebuild.
476 Sun Sep 8 14:04:37 1996 Stu Grossman (grossman@critters.cygnus.com)
478 * erc32.c (port_init): Disable this for __GO32__ (got no pty's
481 Mon Aug 12 17:04:58 1996 Stu Grossman (grossman@critters.cygnus.com)
483 * erc32.c: Don't include sys/ioctl.h or sys/file.h. They aren't
485 * (port_init): Don't even *try* to open pty's under _WIN32.
486 * Use SIM_ADDR, not caddr_t for declaring vars that hold addresses.
487 * float.c: Get rid of #warning. Makes Microsoft C barf.
488 * interf.c (sim_open): Cast fprintf to (fprintf_ftype) to fix
490 * (sim_load sim_create_inferior sim_read): Use prototypes only in
492 * Get rid of enum sim_stop. It's defined in remote-sim.h.
493 * (sim_stop_reason): Define SIGTRAP if _WIN32.
494 * sis.h: Include ansidecl.h and remote-sim.h.
496 Wed Jul 3 16:05:23 1996 Stu Grossman (grossman@critters.cygnus.com)
498 * erc32.c (mec_reset mec_read mec_write memory_read memory_write),
499 sis.h: Get rid of all uses of long long's.
500 * (close_port read_uart write_uart uarta_tx): Don't seg fault
501 when can't open pty's.
502 * exec.c: Add two new instructions: smul, and divscc.
503 * interf.c (flush_windows): New routine to flush the register
504 windows out to the stack just before returning to GDB. Makes
505 backtraces work much better.
507 Wed Jun 26 12:19:11 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
509 * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
510 INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
511 (docdir, oldincludedir): Removed.
512 * configure.in (AC_PREREQ): autoconf 2.5 or higher.
513 (AC_PROG_INSTALL): Added.
514 * configure: Rebuilt.
516 Mon Jun 24 14:19:07 1996 Ian Lance Taylor <ian@cygnus.com>
518 * configure.in: Call AC_PROG_CC before running configure.host.
519 * configure: Rebuild with autoconf 2.10.
521 Tue Jun 4 10:37:12 1996 Tom Tromey <tromey@csk3.cygnus.com>
523 * Makefile.in (install): Don't check to see if tooldir exists.
524 Make $(tooldir) and $(tooldir)/bin.
526 Mon Jun 3 12:33:38 1996 Ian Lance Taylor <ian@cygnus.com>
528 * Makefile.in (end.h): Use explicit ./ when running end.
530 Sun May 19 21:05:31 1996 Rob Savoye <rob@chinadoll.cygnus.com>
532 * func.c(bfd_load): Don't try to print the filename if the pfbd is
534 * interf.c(sim_load): Pass the whole string, not just the first
540 * Fixed bug in "go" command.
545 * Fixed bug in interrupt force register (erc32.c).
547 * Change file load function to use bfd_openr.
549 * SIS should now be endian independent.
554 * Fixed FPU timing - some sequences of FPU instructions did not calculate
555 the resource dependencies right.
557 * Corrected STDFQ when qne = 0 (again!). The ftt is set to sequence_error
558 but no FPU trap is generated.
560 version 1.7.1 31-10-95
563 * Corrected STDFQ when qne = 0. Now, a trap is immidiately generated but
564 the FPU stays in execute mode.
566 * Corrected JMPL and RETT timing (these instructions takes two cycles).
572 * Interrupt during annuled instruction corrupted return address - fixed.
575 version 1.6.2 25-10-95
578 * Added -DFAST_UART to Makefile
581 version 1.6.1 24-10-95
584 * Fixed bug in STDFQ which caused bus error
590 * Modified srt0.s to include code that initiates registers in IU and FPU
591 and initializes the data segment. The simulator 'load' command does not
592 longer initialize the data segment!
594 * Corrected MEC timer operation; scalers now divide the frequency by
597 * MEC breakpoints are not checked during store operation
603 * Fixed some bugs in the cycle counting for IU & FPU instructions.
605 * Fixed bug that allowed an annuled instruction to cause memory exception.
607 * The *ws parameter in mem.c should now contain the number of waitstates
608 required by the memory access (was total number of cycles).
610 * The supplied srt0.s now clears the BSS (thanks Joel).
615 * Added a '-g' switch to enable/disable the GNU readline(), which cause
616 some problems on solaris 2.x machines.
618 * Enabled MEC watchpoint and breakpoint function to mem.c. Performance
621 NOTE: The UARTs are now connected to /dev/ttypc and /dev/ttypd.
626 * Fixed bug in mulscc instruction (how could that ever have worked?)
628 * Fixed bug in UART B (flushed characters on UART A), thanks Paul.
633 * Fixed bug in interrupt handling (wrong interrupt selected when more that
634 one interrupt pending)
636 * Fixed updating of condition codes during logical instructions (carry and
637 overflow were not reset)
639 * Fixed bug in WRTBR (tt field was wrongly over-written)
644 * Fixed several bugs in the interrupt handler and callback routines.
645 (reported by Paul Warren, Alsys)