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