1 Mon Sep 22 11:46:20 1997 Andrew Cagney <cagney@b1.cygnus.com>
3 * configure: Regenerated to track ../common/aclocal.m4 changes.
5 Fri Sep 19 17:45:25 1997 Andrew Cagney <cagney@b1.cygnus.com>
7 * configure: Regenerated to track ../common/aclocal.m4 changes.
9 Sat Sep 20 14:07:28 1997 Gavin Koch <gavin@cygnus.com>
11 * gencode.c (SDBBP,DERET): Added (3900) insns.
12 (RFE): Turn on for 3900.
13 * interp.c (DebugBreakPoint,DEPC,Debug,Debug_*): Added.
14 (dsstate): Made global.
15 (SUBTARGET_R3900): Added.
16 (CANCELDELAYSLOT): New.
17 (SignalException): Ignore SystemCall rather than ignore and
18 terminate. Add DebugBreakPoint handling.
19 (decode_coproc): New insns RFE, DERET; and new registers Debug
20 and DEPC protected by SUBTARGET_R3900.
21 (sim_engine_run): Use CANCELDELAYSLOT rather than clearing
23 * Makefile.in,configure.in: Add mips subtarget option.
26 Fri Sep 19 09:33:27 1997 Gavin Koch <gavin@cygnus.com>
28 * gencode.c: Add r3900 (tx39).
31 * gencode.c: Fix some configuration problems by improving
32 the relationship between tx19 and tx39.
35 Tue Sep 16 15:52:04 1997 Gavin Koch <gavin@cygnus.com>
37 * gencode.c (build_instruction): Don't need to subtract 4 for
40 Tue Sep 16 11:32:28 1997 Gavin Koch <gavin@cygnus.com>
42 * interp.c: Correct some HASFPU problems.
44 Mon Sep 15 17:36:15 1997 Andrew Cagney <cagney@b1.cygnus.com>
46 * configure: Regenerated to track ../common/aclocal.m4 changes.
48 Fri Sep 12 12:01:39 1997 Andrew Cagney <cagney@b1.cygnus.com>
50 * interp.c (mips_options): Fix samples option short form, should
53 Thu Sep 11 09:35:29 1997 Andrew Cagney <cagney@b1.cygnus.com>
55 * interp.c (sim_info): Enable info code. Was just returning.
57 Tue Sep 9 17:30:57 1997 Andrew Cagney <cagney@b1.cygnus.com>
59 * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
62 Tue Sep 9 16:28:28 1997 Andrew Cagney <cagney@b1.cygnus.com>
64 * gencode.c (build_instruction): Use SIGNED64 for 64 bit
66 (build_instruction): Ditto for LL.
69 Sun Sep 7 16:05:46 1997 Gavin Koch <gavin@cygnus.com>
71 * mips/configure.in, mips/gencode: Add tx19/r1900.
74 Thu Sep 4 17:21:23 1997 Doug Evans <dje@seba>
76 * configure: Regenerated to track ../common/aclocal.m4 changes.
79 Mon Sep 1 18:43:30 1997 Andrew Cagney <cagney@b1.cygnus.com>
81 * gencode.c (build_instruction): For "pabsw" and "pabsh", check
82 for overflow due to ABS of MININT, set result to MAXINT.
83 (build_instruction): For "psrlvw", signextend bit 31.
86 Wed Aug 27 18:13:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
88 * configure: Regenerated to track ../common/aclocal.m4 changes.
91 Wed Aug 27 14:12:27 1997 Andrew Cagney <cagney@b1.cygnus.com>
93 * interp.c (sim_open): Add call to sim_analyze_program, update
96 Tue Aug 26 10:40:07 1997 Andrew Cagney <cagney@b1.cygnus.com>
98 * interp.c (sim_kill): Delete.
99 (sim_create_inferior): Add ABFD argument. Set PC from same.
100 (sim_load): Move code initializing trap handlers from here.
102 (sim_load): Delete, use sim-hload.c.
104 * Makefile.in (SIM_OBJS): Add sim-hload.o module.
106 Mon Aug 25 17:50:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
108 * configure: Regenerated to track ../common/aclocal.m4 changes.
111 Mon Aug 25 15:59:48 1997 Andrew Cagney <cagney@b1.cygnus.com>
113 * interp.c (sim_open): Add ABFD argument.
114 (sim_load): Move call to sim_config from here.
115 (sim_open): To here. Check return status.
118 * gencode.c (build_instruction): Do not define x8000000000000000,
119 x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
123 Mon Jul 28 19:49:29 1997 Andrew Cagney <cagney@b1.cygnus.com>
125 * gencode.c (build_instruction): For "pdivw", "pdivbw" and
126 "pdivuw" check for overflow due to signed divide by -1.
129 Fri Jul 25 15:00:45 1997 Gavin Koch <gavin@cygnus.com>
131 * gencode.c (build_instruction): Two arg MADD should
132 not assign result to $0.
135 Thu Jul 10 11:58:48 1997 Andrew Cagney <cagney@critters.cygnus.com>
137 * gencode.c (build_instruction): For "ppac5" use unsigned
138 arrithmetic so that the sign bit doesn't smear when right shifted.
139 (build_instruction): For "pdiv" perform sign extension when
140 storing results in HI and LO.
141 (build_instructions): For "pdiv" and "pdivbw" check for
143 (build_instruction): For "pmfhl.slw" update hi part of dest
144 register as well as low part.
145 (build_instruction): For "pmfhl" portably handle long long values.
146 (build_instruction): For "pmfhl.sh" correctly negative values.
147 Store half words 2 and three in the correct place.
148 (build_instruction): For "psllvw", sign extend value after shift.
151 Thu Jun 26 12:13:17 1997 Angela Marie Thomas (angela@cygnus.com)
153 * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
154 * sim/mips/configure.in: Regenerate.
156 Wed Jul 9 10:29:21 1997 Andrew Cagney <cagney@critters.cygnus.com>
158 * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
159 signed8, unsigned8 et.al. types.
162 * gencode.c (build_instruction): For PMULTU* do not sign extend
163 registers. Make generated code easier to debug.
166 * interp.c (SUB_REG_FETCH): Handle both little and big endian
167 hosts when selecting subreg.
170 Tue Jul 8 18:07:20 1997 Andrew Cagney <cagney@andros.cygnus.com>
172 * gencode.c (type_for_data_len): For 32bit operations concerned
173 with overflow, perform op using 64bits.
174 (build_instruction): For PADD, always compute operation using type
175 returned by type_for_data_len.
176 (build_instruction): For PSUBU, when overflow, saturate to zero as
180 Wed Jul 2 11:54:10 1997 Jeffrey A Law (law@cygnus.com)
183 * gencode.c (build_instruction): Handle "pext5" according to
184 version 1.95 of the r5900 ISA.
186 * gencode.c (build_instruction): Handle "ppac5" according to
187 version 1.95 of the r5900 ISA.
190 * interp.c (sim_engine_run): Reset the ZERO register to zero
191 regardless of FEATURE_WARN_ZERO.
192 * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
194 Wed Jun 4 10:43:14 1997 Andrew Cagney <cagney@b1.cygnus.com>
196 * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
197 (SignalException): For BreakPoints ignore any mode bits and just
199 (SignalException): Always set the CAUSE register.
201 Tue Jun 3 05:00:33 1997 Andrew Cagney <cagney@b1.cygnus.com>
203 * interp.c (SignalException): Clear the simDELAYSLOT flag when an
204 exception has been taken.
206 * interp.c: Implement the ERET and mt/f sr instructions.
209 Mon Jun 2 23:28:19 1997 Andrew Cagney <cagney@b1.cygnus.com>
211 * gencode.c (build_instruction): For paddu, extract unsigned
214 * gencode.c (build_instruction): Saturate padds instead of padd
218 Sat May 31 00:44:16 1997 Andrew Cagney <cagney@b1.cygnus.com>
220 * interp.c (SignalException): Don't bother restarting an
223 Fri May 30 23:41:48 1997 Andrew Cagney <cagney@b1.cygnus.com>
225 * interp.c (SignalException): Really take an interrupt.
226 (interrupt_event): Only deliver interrupts when enabled.
228 Tue May 27 20:08:06 1997 Andrew Cagney <cagney@b1.cygnus.com>
230 * interp.c (sim_info): Only print info when verbose.
231 (sim_info) Use sim_io_printf for output.
233 Tue May 27 14:22:23 1997 Andrew Cagney <cagney@b1.cygnus.com>
235 * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
238 Tue May 27 14:22:23 1997 Andrew Cagney <cagney@b1.cygnus.com>
240 * interp.c (sim_do_command): Check for common commands if a
241 simulator specific command fails.
243 Thu May 22 09:32:03 1997 Gavin Koch <gavin@cygnus.com>
245 * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
246 and simBE when DEBUG is defined.
248 Wed May 21 09:08:10 1997 Andrew Cagney <cagney@b1.cygnus.com>
250 * interp.c (interrupt_event): New function. Pass exception event
251 onto exception handler.
253 * configure.in: Check for stdlib.h.
254 * configure: Regenerate.
256 * gencode.c (build_instruction): Add UNUSED attribute to tempS
257 variable declaration.
258 (build_instruction): Initialize memval1.
259 (build_instruction): Add UNUSED attribute to byte, bigend,
261 (build_operands): Ditto.
263 * interp.c: Fix GCC warnings.
264 (sim_get_quit_code): Delete.
266 * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
267 * Makefile.in: Ditto.
268 * configure: Re-generate.
270 * Makefile.in (SIM_OBJS): Add sim-watch.o module.
272 Tue May 20 15:08:56 1997 Andrew Cagney <cagney@b1.cygnus.com>
274 * interp.c (mips_option_handler): New function parse argumes using
276 (myname): Replace with STATE_MY_NAME.
277 (sim_open): Delete check for host endianness - performed by
279 (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
280 (sim_open): Move much of the initialization from here.
281 (sim_load): To here. After the image has been loaded and
283 (sim_open): Move ColdReset from here.
284 (sim_create_inferior): To here.
285 (sim_open): Make FP check less dependant on host endianness.
287 * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
289 * interp.c (sim_set_callbacks): Delete.
291 * interp.c (membank, membank_base, membank_size): Replace with
292 STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
293 (sim_open): Remove call to callback->init. gdb/run do this.
297 * sim-main.h (SIM_HAVE_FLATMEM): Define.
299 * interp.c (big_endian_p): Delete, replaced by
300 current_target_byte_order.
302 Tue May 20 13:55:00 1997 Andrew Cagney <cagney@b1.cygnus.com>
304 * interp.c (host_read_long, host_read_word, host_swap_word,
305 host_swap_long): Delete. Using common sim-endian.
306 (sim_fetch_register, sim_store_register): Use H2T.
307 (pipeline_ticks): Delete. Handled by sim-events.
309 (sim_engine_run): Update.
311 Tue May 20 13:42:03 1997 Andrew Cagney <cagney@b1.cygnus.com>
313 * interp.c (sim_stop_reason): Move code determining simEXCEPTION
315 (SignalException): To here. Signal using sim_engine_halt.
316 (sim_stop_reason): Delete, moved to common.
318 Tue May 20 10:19:48 1997 Andrew Cagney <cagney@b2.cygnus.com>
320 * interp.c (sim_open): Add callback argument.
321 (sim_set_callbacks): Delete SIM_DESC argument.
324 Mon May 19 18:20:38 1997 Andrew Cagney <cagney@b1.cygnus.com>
326 * Makefile.in (SIM_OBJS): Add common modules.
328 * interp.c (sim_set_callbacks): Also set SD callback.
329 (set_endianness, xfer_*, swap_*): Delete.
330 (host_read_word, host_read_long, host_swap_word, host_swap_long):
331 Change to functions using sim-endian macros.
332 (control_c, sim_stop): Delete, use common version.
333 (simulate): Convert into.
334 (sim_engine_run): This function.
335 (sim_resume): Delete.
337 * interp.c (simulation): New variable - the simulator object.
338 (sim_kind): Delete global - merged into simulation.
339 (sim_load): Cleanup. Move PC assignment from here.
340 (sim_create_inferior): To here.
342 * sim-main.h: New file.
343 * interp.c (sim-main.h): Include.
345 Thu Apr 24 00:39:51 1997 Doug Evans <dje@canuck.cygnus.com>
347 * configure: Regenerated to track ../common/aclocal.m4 changes.
349 Wed Apr 23 17:32:19 1997 Doug Evans <dje@canuck.cygnus.com>
351 * tconfig.in (SIM_HAVE_BIENDIAN): Define.
353 Mon Apr 21 17:16:13 1997 Gavin Koch <gavin@cygnus.com>
355 * gencode.c (build_instruction): DIV instructions: check
356 for division by zero and integer overflow before using
357 host's division operation.
359 Thu Apr 17 03:18:14 1997 Doug Evans <dje@canuck.cygnus.com>
361 * Makefile.in (SIM_OBJS): Add sim-load.o.
362 * interp.c: #include bfd.h.
363 (target_byte_order): Delete.
364 (sim_kind, myname, big_endian_p): New static locals.
365 (sim_open): Set sim_kind, myname. Move call to set_endianness to
366 after argument parsing. Recognize -E arg, set endianness accordingly.
367 (sim_load): Return SIM_RC. New arg abfd. Call sim_load_file to
368 load file into simulator. Set PC from bfd.
369 (sim_create_inferior): Return SIM_RC. Delete arg start_address.
370 (set_endianness): Use big_endian_p instead of target_byte_order.
372 Wed Apr 16 17:55:37 1997 Andrew Cagney <cagney@b1.cygnus.com>
374 * interp.c (sim_size): Delete prototype - conflicts with
375 definition in remote-sim.h. Correct definition.
377 Mon Apr 7 15:45:02 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
379 * configure: Regenerated to track ../common/aclocal.m4 changes.
382 Wed Apr 2 15:06:28 1997 Doug Evans <dje@canuck.cygnus.com>
384 * interp.c (sim_open): New arg `kind'.
386 * configure: Regenerated to track ../common/aclocal.m4 changes.
388 Wed Apr 2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
390 * configure: Regenerated to track ../common/aclocal.m4 changes.
392 Tue Mar 25 11:38:22 1997 Doug Evans <dje@canuck.cygnus.com>
394 * interp.c (sim_open): Set optind to 0 before calling getopt.
396 Wed Mar 19 01:14:00 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
398 * configure: Regenerated to track ../common/aclocal.m4 changes.
400 Mon Mar 17 10:52:59 1997 Gavin Koch <gavin@cetus.cygnus.com>
402 * interp.c : Replace uses of pr_addr with pr_uword64
403 where the bit length is always 64 independent of SIM_ADDR.
404 (pr_uword64) : added.
406 Mon Mar 17 15:10:07 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
408 * configure: Re-generate.
410 Fri Mar 14 10:34:11 1997 Michael Meissner <meissner@cygnus.com>
412 * configure: Regenerate to track ../common/aclocal.m4 changes.
414 Thu Mar 13 12:51:36 1997 Doug Evans <dje@canuck.cygnus.com>
416 * interp.c (sim_open): New SIM_DESC result. Argument is now
418 (other sim_*): New SIM_DESC argument.
421 Wed Feb 26 18:32:21 1997 Gavin Koch <gavin@cygnus.com>
423 * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
424 Change values to avoid overloading DOUBLEWORD which is tested
426 * gencode.c: reinstate "offending code".
429 Mon Feb 24 22:47:14 1997 Dawn Perchik <dawn@cygnus.com>
431 * interp.c: Fix printing of addresses for non-64-bit targets.
432 (pr_addr): Add function to print address based on size.
434 * gencode.c: #ifdef out offending code until a permanent fix
435 can be added. Code is causing build errors for non-5900 mips targets.
439 Thu Feb 20 10:40:24 1997 Gavin Koch <gavin@cetus.cygnus.com>
441 * gencode.c (process_instructions): Correct test for ISA dependent
442 architecture bits in isa field of MIPS_DECODE.
445 Wed Feb 19 14:42:09 1997 Mark Alexander <marka@cygnus.com>
447 * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
450 Tue Feb 18 17:03:47 1997 Gavin Koch <gavin@cygnus.com>
452 * gencode.c (MIPS_DECODE): Correct instruction feature flags for
456 Thu Feb 13 14:08:30 1997 Ian Lance Taylor <ian@cygnus.com>
458 * gencode.c (build_mips16_operands): Correct computation of base
459 address for extended PC relative instruction.
462 Fri Feb 7 11:12:44 1997 Gavin Koch <gavin@cygnus.com>
464 * Makefile.in, configure, configure.in, gencode.c,
465 interp.c, support.h: add r5900.
468 Thu Feb 6 17:16:15 1997 Ian Lance Taylor <ian@cygnus.com>
470 * interp.c (mips16_entry): Add support for floating point cases.
471 (SignalException): Pass floating point cases to mips16_entry.
472 (ValueFPR): Don't restrict fmt_single and fmt_word to even
474 (StoreFPR): Likewise. Also, don't clobber fpr + 1 for fmt_single
476 (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
477 and then set the state to fmt_uninterpreted.
478 (COP_SW): Temporarily set the state to fmt_word while calling
481 Tue Feb 4 16:48:25 1997 Ian Lance Taylor <ian@cygnus.com>
483 * gencode.c (build_instruction): The high order may be set in the
484 comparison flags at any ISA level, not just ISA 4.
486 Tue Feb 4 13:33:30 1997 Doug Evans <dje@canuck.cygnus.com>
488 * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
489 COMMON_{PRE,POST}_CONFIG_FRAG instead.
490 * configure.in: sinclude ../common/aclocal.m4.
491 * configure: Regenerated.
493 Fri Jan 31 11:11:45 1997 Ian Lance Taylor <ian@cygnus.com>
495 * configure: Rebuild after change to aclocal.m4.
497 Thu Jan 23 11:46:23 1997 Stu Grossman (grossman@critters.cygnus.com)
499 * configure configure.in Makefile.in: Update to new configure
500 scheme which is more compatible with WinGDB builds.
501 * configure.in: Improve comment on how to run autoconf.
502 * configure: Re-run autoconf to get new ../common/aclocal.m4.
503 * Makefile.in: Use autoconf substitution to install common
506 Wed Jan 8 12:39:03 1997 Jim Wilson <wilson@cygnus.com>
508 * gencode.c (build_instruction): Use BigEndianCPU instead of
511 Thu Jan 02 22:23:04 1997 Mark Alexander <marka@cygnus.com>
513 * interp.c (sim_monitor): Make output to stdout visible in
514 wingdb's I/O log window.
516 Tue Dec 31 07:04:00 1996 Mark Alexander <marka@cygnus.com>
518 * support.h: Undo previous change to SIGTRAP
521 Mon Dec 30 17:36:06 1996 Ian Lance Taylor <ian@cygnus.com>
523 * interp.c (store_word, load_word): New static functions.
524 (mips16_entry): New static function.
525 (SignalException): Look for mips16 entry and exit instructions.
526 (simulate): Use the correct index when setting fpr_state after
527 doing a pending move.
529 Sun Dec 29 09:37:18 1996 Mark Alexander <marka@cygnus.com>
531 * interp.c: Fix byte-swapping code throughout to work on
532 both little- and big-endian hosts.
534 Sun Dec 29 09:18:32 1996 Mark Alexander <marka@cygnus.com>
536 * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
537 with gdb/config/i386/xm-windows.h.
539 Fri Dec 27 22:48:51 1996 Mark Alexander <marka@cygnus.com>
541 * gencode.c (build_instruction): Work around MSVC++ code gen bug
542 that messes up arithmetic shifts.
544 Fri Dec 20 11:04:05 1996 Stu Grossman (grossman@critters.cygnus.com)
546 * support.h: Use _WIN32 instead of __WIN32__. Also add defs for
547 SIGTRAP and SIGQUIT for _WIN32.
549 Thu Dec 19 14:07:27 1996 Ian Lance Taylor <ian@cygnus.com>
551 * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
552 force a 64 bit multiplication.
553 (build_instruction) [OR]: In mips16 mode, don't do anything if the
554 destination register is 0, since that is the default mips16 nop
557 Mon Dec 16 14:59:38 1996 Ian Lance Taylor <ian@cygnus.com>
559 * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
560 (build_endian_shift): Don't check proc64.
561 (build_instruction): Always set memval to uword64. Cast op2 to
562 uword64 when shifting it left in memory instructions. Always use
563 the same code for stores--don't special case proc64.
565 * gencode.c (build_mips16_operands): Fix base PC value for PC
567 (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
569 * interp.c (simJALDELAYSLOT): Define.
570 (JALDELAYSLOT): Define.
571 (INDELAYSLOT, INJALDELAYSLOT): Define.
572 (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
574 Tue Dec 24 22:11:20 1996 Angela Marie Thomas (angela@cygnus.com)
576 * interp.c (sim_open): add flush_cache as a PMON routine
577 (sim_monitor): handle flush_cache by ignoring it
579 Wed Dec 11 13:53:51 1996 Jim Wilson <wilson@cygnus.com>
581 * gencode.c (build_instruction): Use !ByteSwapMem instead of
583 * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
584 (BigEndianMem): Rename to ByteSwapMem and change sense.
585 (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
586 BigEndianMem references to !ByteSwapMem.
587 (set_endianness): New function, with prototype.
588 (sim_open): Call set_endianness.
589 (sim_info): Use simBE instead of BigEndianMem.
590 (xfer_direct_word, xfer_direct_long, swap_direct_word,
591 swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
592 xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
593 ifdefs, keeping the prototype declaration.
594 (swap_word): Rewrite correctly.
595 (ColdReset): Delete references to CONFIG. Delete endianness related
596 code; moved to set_endianness.
598 Tue Dec 10 11:32:04 1996 Jim Wilson <wilson@cygnus.com>
600 * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
601 * interp.c (CHECKHILO): Define away.
602 (simSIGINT): New macro.
603 (membank_size): Increase from 1MB to 2MB.
604 (control_c): New function.
605 (sim_resume): Rename parameter signal to signal_number. Add local
606 variable prev. Call signal before and after simulate.
607 (sim_stop_reason): Add simSIGINT support.
608 (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
610 (sim_warning): Delete call to SignalException. Do call printf_filtered
612 (AddressTranslation): Add #ifdef DEBUG around debugging message and
613 a call to sim_warning.
615 Wed Nov 27 11:53:50 1996 Ian Lance Taylor <ian@cygnus.com>
617 * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
620 Tue Nov 26 11:53:12 1996 Ian Lance Taylor <ian@cygnus.com>
622 Add support for mips16 (16 bit MIPS implementation):
623 * gencode.c (inst_type): Add mips16 instruction encoding types.
624 (GETDATASIZEINSN): Define.
625 (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv. Add
626 jalx. Add LEFT flag to mfhi and mflo. Add RIGHT flag to mthi and
628 (MIPS16_DECODE): New table, for mips16 instructions.
629 (bitmap_val): New static function.
630 (struct mips16_op): Define.
631 (mips16_op_table): New table, for mips16 operands.
632 (build_mips16_operands): New static function.
633 (process_instructions): If PC is odd, decode a mips16
634 instruction. Break out instruction handling into new
635 build_instruction function.
636 (build_instruction): New static function, broken out of
637 process_instructions. Check modifiers rather than flags for SHIFT
638 bit count and m[ft]{hi,lo} direction.
639 (usage): Pass program name to fprintf.
640 (main): Remove unused variable this_option_optind. Change
641 ``*loptarg++'' to ``loptarg++''.
642 (my_strtoul): Parenthesize && within ||.
643 * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
644 (simulate): If PC is odd, fetch a 16 bit instruction, and
645 increment PC by 2 rather than 4.
646 * configure.in: Add case for mips16*-*-*.
647 * configure: Rebuild.
649 Fri Nov 22 08:49:36 1996 Mark Alexander <marka@cygnus.com>
651 * interp.c: Allow -t to enable tracing in standalone simulator.
652 Fix garbage output in trace file and error messages.
654 Wed Nov 20 01:54:37 1996 Doug Evans <dje@canuck.cygnus.com>
656 * Makefile.in: Delete stuff moved to ../common/Make-common.in.
657 (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
658 * configure.in: Simplify using macros in ../common/aclocal.m4.
659 * configure: Regenerated.
660 * tconfig.in: New file.
662 Tue Nov 12 13:34:00 1996 Dawn Perchik <dawn@cygnus.com>
664 * interp.c: Fix bugs in 64-bit port.
665 Use ansi function declarations for msvc compiler.
666 Initialize and test file pointer in trace code.
667 Prevent duplicate definition of LAST_EMED_REGNUM.
669 Tue Oct 15 11:07:06 1996 Mark Alexander <marka@cygnus.com>
671 * interp.c (xfer_big_long): Prevent unwanted sign extension.
673 Thu Sep 26 17:35:00 1996 James G. Smith <jsmith@cygnus.co.uk>
675 * interp.c (SignalException): Check for explicit terminating
677 * gencode.c: Pass instruction value through SignalException()
678 calls for Trap, Breakpoint and Syscall.
680 Thu Sep 26 11:35:17 1996 James G. Smith <jsmith@cygnus.co.uk>
682 * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
683 only used on those hosts that provide it.
684 * configure.in: Add sqrt() to list of functions to be checked for.
685 * config.in: Re-generated.
686 * configure: Re-generated.
688 Fri Sep 20 15:47:12 1996 Ian Lance Taylor <ian@cygnus.com>
690 * gencode.c (process_instructions): Call build_endian_shift when
691 expanding STORE RIGHT, to fix swr.
692 * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
694 * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
695 Fix float to int conversions to produce signed values.
697 Thu Sep 19 15:34:17 1996 Ian Lance Taylor <ian@cygnus.com>
699 * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
700 (process_instructions): Correct handling of nor instruction.
701 Correct shift count for 32 bit shift instructions. Correct sign
702 extension for arithmetic shifts to not shift the number of bits in
703 the type. Fix 64 bit multiply high word calculation. Fix 32 bit
704 unsigned multiply. Fix ldxc1 and friends to use coprocessor 1.
706 * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
707 It's OK to have a mult follow a mult. What's not OK is to have a
709 (Convert): Comment out incorrect rounding code.
711 Mon Sep 16 11:38:16 1996 James G. Smith <jsmith@cygnus.co.uk>
713 * interp.c (sim_monitor): Improved monitor printf
714 simulation. Tidied up simulator warnings, and added "--log" option
715 for directing warning message output.
716 * gencode.c: Use sim_warning() rather than WARNING macro.
718 Thu Aug 22 15:03:12 1996 Ian Lance Taylor <ian@cygnus.com>
720 * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
721 getopt1.o, rather than on gencode.c. Link objects together.
722 Don't link against -liberty.
723 (gencode.o, getopt.o, getopt1.o): New targets.
724 * gencode.c: Include <ctype.h> and "ansidecl.h".
725 (AND): Undefine after including "ansidecl.h".
726 (ULONG_MAX): Define if not defined.
727 (OP_*): Don't define macros; now defined in opcode/mips.h.
728 (main): Call my_strtoul rather than strtoul.
729 (my_strtoul): New static function.
731 Wed Jul 17 18:12:38 1996 Stu Grossman (grossman@critters.cygnus.com)
733 * gencode.c (process_instructions): Generate word64 and uword64
734 instead of `long long' and `unsigned long long' data types.
735 * interp.c: #include sysdep.h to get signals, and define default
737 * (Convert): Work around for Visual-C++ compiler bug with type
739 * support.h: Make things compile under Visual-C++ by using
740 __int64 instead of `long long'. Change many refs to long long
741 into word64/uword64 typedefs.
743 Wed Jun 26 12:24:55 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
745 * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
746 INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
748 * configure.in (AC_PREREQ): autoconf 2.5 or higher.
749 (AC_PROG_INSTALL): Added.
750 (AC_PROG_CC): Moved to before configure.host call.
751 * configure: Rebuilt.
753 Wed Jun 5 08:28:13 1996 James G. Smith <jsmith@cygnus.co.uk>
755 * configure.in: Define @SIMCONF@ depending on mips target.
756 * configure: Rebuild.
757 * Makefile.in (run): Add @SIMCONF@ to control simulator
759 * gencode.c: Change LOADDRMASK to 64bit memory model only.
760 * interp.c: Remove some debugging, provide more detailed error
761 messages, update memory accesses to use LOADDRMASK.
763 Mon Jun 3 11:55:03 1996 Ian Lance Taylor <ian@cygnus.com>
765 * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
766 AC_CHECK_LIB, and AC_CHECK_FUNCS. Change AC_OUTPUT to set
768 * configure: Rebuild.
769 * config.in: New file, generated by autoheader.
770 * interp.c: Include "config.h". Include <stdlib.h>, <string.h>,
771 and <strings.h> if they exist. Replace #ifdef sun with #ifdef
772 HAVE_ANINT and HAVE_AINT, as appropriate.
773 * Makefile.in (run): Use @LIBS@ rather than -lm.
774 (interp.o): Depend upon config.h.
775 (Makefile): Just rebuild Makefile.
776 (clean): Remove stamp-h.
777 (mostlyclean): Make the same as clean, not as distclean.
778 (config.h, stamp-h): New targets.
780 Fri May 10 00:41:17 1996 James G. Smith <jsmith@cygnus.co.uk>
782 * interp.c (ColdReset): Fix boolean test. Make all simulator
785 Wed May 8 15:12:58 1996 James G. Smith <jsmith@cygnus.co.uk>
787 * interp.c (xfer_direct_word, xfer_direct_long,
788 swap_direct_word, swap_direct_long, xfer_big_word,
789 xfer_big_long, xfer_little_word, xfer_little_long,
790 swap_word,swap_long): Added.
791 * interp.c (ColdReset): Provide function indirection to
792 host<->simulated_target transfer routines.
793 * interp.c (sim_store_register, sim_fetch_register): Updated to
794 make use of indirected transfer routines.
796 Fri Apr 19 15:48:24 1996 James G. Smith <jsmith@cygnus.co.uk>
798 * gencode.c (process_instructions): Ensure FP ABS instruction
800 * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
803 Wed Apr 10 09:51:38 1996 James G. Smith <jsmith@cygnus.co.uk>
805 * interp.c (sim_do_command): Complain if callback structure not
808 Thu Mar 28 13:50:51 1996 James G. Smith <jsmith@cygnus.co.uk>
810 * interp.c (Convert): Provide round-to-nearest and round-to-zero
811 support for Sun hosts.
812 * Makefile.in (gencode): Ensure the host compiler and libraries
813 used for cross-hosted build.
815 Wed Mar 27 14:42:12 1996 James G. Smith <jsmith@cygnus.co.uk>
817 * interp.c, gencode.c: Some more (TODO) tidying.
819 Thu Mar 7 11:19:33 1996 James G. Smith <jsmith@cygnus.co.uk>
821 * gencode.c, interp.c: Replaced explicit long long references with
822 WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
823 * support.h (SET64LO, SET64HI): Macros added.
825 Wed Feb 21 12:16:21 1996 Ian Lance Taylor <ian@cygnus.com>
827 * configure: Regenerate with autoconf 2.7.
829 Tue Jan 30 08:48:18 1996 Fred Fish <fnf@cygnus.com>
831 * interp.c (LoadMemory): Enclose text following #endif in /* */.
832 * support.h: Remove superfluous "1" from #if.
833 * support.h (CHECKSIM): Remove stray 'a' at end of line.
835 Mon Dec 4 11:44:40 1995 Jamie Smith <jsmith@cygnus.com>
837 * interp.c (StoreFPR): Control UndefinedResult() call on
838 WARN_RESULT manifest.
840 Fri Dec 1 16:37:19 1995 James G. Smith <jsmith@cygnus.co.uk>
842 * gencode.c: Tidied instruction decoding, and added FP instruction
845 * interp.c: Added dineroIII, and BSD profiling support. Also
846 run-time FP handling.
848 Sun Oct 22 00:57:18 1995 James G. Smith <jsmith@pasanda.cygnus.co.uk>
850 * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
851 gencode.c, interp.c, support.h: created.