aboutsummaryrefslogtreecommitdiff
path: root/sim/v850/ChangeLog
blob: 2ce5289c97ccb935e779937125f31227a2e356b9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* Makefile.in (SIM_WARNINGS, SIM_ALIGNMENT, SIM_ENDIAN,
 	SIM_HOSTENDIAN, SIM_RESERVED_BITS): Delete, moved to common.
	(SIM_EXTRA_CFLAGS): Update.
	
Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* configure.in: Really specify NONSTRICT_ALIGNMENT as the default.

Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure.in: Specify NONSTRICT_ALIGNMENT as the default.
	* configure: Regenerated to track ../common/aclocal.m4 changes.

Fri Sep 19 10:37:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* v850.igen (disp16): Use EXTEND16 to sign extend disp.
	(disp22): Only shift left by 1, not 2.
	("jmp"): Ensure PC is 2 byte aligned.

	* simops.c, v850.igen: Move "Bcond", "jr", "jarl" code to
 	v850.igen. Fix tracing.

	* simops.c (OP_300, OP_400, OP_500): Move "sdl.b", "sld.h",
 	"sld.w" insns to v850.igen.  Fix tracing.
start-sanitize-v850eq
	(OP_70): Ditto for "sld.hu".
end-sanitize-v850eq

	* v850.igen: Clarify tracing of "sld.b", "sld.h" et.al.

end-sanitize-v850eq
	* simops.c (condition_met): Make global.

	* sim-main.h (TRACE_ALU_INPUT3, TRACE_BRANCH0, TRACE_LD,
 	TRACE_ST): Define.
start-sanitize-v850eq
	(TRACE_LD_NAME): Define.
end-sanitize-v850eq

start-sanitize-v850e
	* simops.c: Move "cmov", "cmov imm" to v850.igen, fix.

end-sanitize-v850e
Wed Sep 17 16:21:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c: Move "mov", "reti", to v850.igen, fix tracing.
	
	* interp.c (hash): Delete.

	* v850.igen (nop): Really do nothing.

	* interp.c (do_interrupt): Mask interrupts after PSW is saved, not
 	before.
	* v850.igen (reti): Return to current PC not previous.

start-sanitize-v850e
Wed Sep 17 14:02:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c: Move "ctret", "bsw", "hsw" to v850.igen, fix tracing.
	(trace_module): Global, save component/module name across insn.

	* simops.c: Move "bsh" to v850.igen, fix.
	
	* v850.igen (callt): Load correct number of bytes. Fix tracing.
	(stsr, ldsr): Correct src, dest fields. Fix tracing.
	(ctret): Force alignment.  Fix tracing.
	
end-sanitize-v850e
Tue Sep 16 22:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (trace_output): Add result argument.
	(trace_result): New function.  Simpler version of trace_output,
 	assumes trace needed.
	(trace_output): Call trace_result.
	(trace_output): For IMM_REG_REG, trace correct register.
	(trace_input): Add case for 16bit immediates.
	(OP_600, OP_640, OP_680, OP_6C0, OP_6A0): Use.

	* sim-main.h (TRACE_ALU_INPUT, TRACE_ALU_RESULT): Define.
	(trace_values, trace_name, trace_pc, trace_num_values): Make
 	global.
	(GR, SR): Define.
	
	v850.insn (movea, stsr): Use.
start-sanitize-v850e
	(sxb, sxh, zxb, zxh): Ditto.
end-sanitize-v850e
	
Tue Sep 16 21:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c: Move "movea" from here.
	* v850.igen: To here.

	* v850.igen (simm16): Define, sign extend imm16.
	(uimm16): Define, no sign extension.
	(addi, andi, movea, movhi, mulhi, ori, satsubi, xori): Use.
	
start-sanitize-v850e
	* simops.c: Move "sxh", "switch", "sxb", "callt", "dispose",
 	"mov32" from here.
	* v850.igen: To here.
	(switch): Fix off by two error in NIA calc.
	
end-sanitize-v850e
Tue Sep 16 15:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (trace_pc, trace_name, trace_values, trace_num_values):
 	New static globals.
	(trace_input): Just save pc, name and values for trace_output.
	(trace_output): Write trace values to a buffer.  Use
 	trace_one_insn to print trace info and buffer.
	(SIZE_OPERANDS, SIZE_LOCATION): Delete.
	
Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-main.h (struct _sim_cpu): Add psw_mask so that reserved bits
 	can be masked out.

	* simops.c (OP_2007E0, OP_4007E0): Move "ldsr", "stsr"
 	instructions from here.
	* v850.igen (ldsr, stsr): To here.  Mask out reserved bits when
 	setting PSW.
	
	* interp.c (sim_open): Set psw_mask if machine known.

Tue Sep 16 10:20:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

start-sanitize-v850e
	* v850-dc: Add rule to diferentiate between breakpoint and divh.
	* v850.igen (break): New instruction, breakpoint simulator.

end-sanitize-v850e
	* v850.igen (breakpoint): Enable.  Change to a 32bit instruction.

start-sanitize-v850e
Mon Sep 15 18:44:05 1997  Jim Wilson  <wilson@cygnus.com>

	* simops.c (Multiply64): Don't store into register zero.

end-sanitize-v850e
Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* Makefile.in (semantics.o): Add dependency.

	* sim-main.h (SAVE_1, SAVE_2): Perform backward compatible save,
 	do not adjust CIA/NIA.

Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

start-sanitize-v850eq
	* simops.c (OP_300, OP_400, OP_70): Make behavour depend on PSW[US].
	
	* simops.c: Move "divun", "sld.bu", "divhn", "divhun", "divn",
 	"divun", "pushml" code from here to v850.igen.
	(divun): Make global.
	(type3_regs): Make global
	
	* v850.igen: Move simops.c code to here.

	* interp.c (sim_create_inferior): For v850eq set US bit by
 	default.

end-sanitize-v850eq
start-sanitize-v850e
	* interp.c (sim_open): Don't set arch, now set by
 	sim_analyze_program.

end-sanitize-v850e
	* configure: Regenerated to track ../common/aclocal.m4 changes.

Mon Sep 15 14:39:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (op_types): Move from here.
	sim-main.h: To here.

	* sim-main.h (trace_input, trace_output), simops.c: Make global.

	* simops.c (OP_60): Move "jmp" code from here.
	* v850.igen (jmp): To here.

start-sanitize-v850eq
	* simops.c (OP_60): Move "sld.bu" code from here.
	* v850.igen (sld.bu): To here.

end-sanitize-v850eq
Fri Sep 12 15:11:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>

start-sanitize-v850eq
	* v850.igen (prepare, ...): Add to v850eq architecture.

end-sanitize-v850eq
start-sanitize-v850e
	* interp.c (sim_open): Default to v850eq.
	
end-sanitize-v850e
start-sanitize-v850eq
	
	* interp.c (sim_open): Default to v850e.
end-sanitize-v850eq
	* sim-main.h (signal.h): Include.

	* v850.igen (illegal): Report/halt illegal instructions.

	* Makefile.in (SIM_EXTRA_CFLAGS): Add SIM_RESERVED_BITS.

	* configure.in: Add reserved bits option.
	* configure: Regenerate.

Thu Sep 11 08:40:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (sim_open): Use sim_do_commandf instead of asprintf.

	* sim-main.h (INSN_NAME): 

	* Makefile.in (INCLUDE): Add SIM_EXTRA_DEPS.
	(SIM_EXTRA_DEPS): Add itable.h
	(tmp-gencode): Does not depend on simops.h

	* sim-main.h (itable.h): Include.
	(MAX_INSNS, INSN_NAME): Define.

	* interp.c: Compute inttype from the interrupt_names index that
 	was passed in.

Wed Sep 10 10:25:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (trace_input): Use trace_printf instead of
 	sim_io_printf.
	(trace_output): Ditto.
	(trace_input): Only trace when TRACE_ALU_P.  Delete code
 	disasembling instruction.
	(trace_output): Only trace when TRACE_ALU_P.

Tue Sep  9 01:29:50 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (trace_input, trace_output): Use sim_io_printf.
	(OP_620): Pass correct argument to trace.
	(OP_E607E0): Ditto.
	(trace_input): Obtain prog_bfd, text_start et.al from simulator
 	struct.

Mon Sep  8 21:03:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* v850.igen: New file.
	* v850-dc: New file.

Mon Sep  8 18:33:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>


	* sim-main.h (SEXT16): Delete, use EXTEND16.
	(SEXT8): Delete, use EXTEND8.
	(SEXT32): Delete, used?
	(SEXT40, SEXT44, SEXT64): Use UNSIGNED64 for constants, not ...LL.
	(WITH_TARGET_WORD_MSB): Define as 31. v850 little bit endian.
	
	* simops.c: Use EXTEND15 from sim-bits instead of SEXT16.

	* sim-main.h (DEBUG_TRACE, DEBUG_VALUES, v850_debug): Delete,
 	replace with TRACE_INSN_P and TRACE_ALU_P.

	* simops.c (trace_input, trace_output): Update.

	* interp.c (sim_engine_run): Delete.
	(lookup_hash): Delete.
	(sim_open): Do not fill hash table.
	(sim_trace): Delete.

Fri Sep  5 17:04:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (OP_FFFF): Use sim_engine_halt.
	(OP_12007E0): Ditto.
	(OP_10007E0): Ditto.

	* sim-main.h (struct sim_cpu): Delete member exception. Using
 	sim-engine et.al.

	* interp.c (sim_info): Do not do anything in sim-info.
	(sim_stop): Delete, replace with sim-stop.
	(sim_stop_reason): Delete, replace with sim-reason.

	* sim-main.h (WITH_WATCHPOINTS): Define.
	(WITH_MODULO_MEMORY): Define
	
	* Makefile.in (SIM_OBJS): Add sim-resume, sim-watch, sim-stop,
 	sim-reason.

	* interp.c (enum interrupt_cond_type): Delete.
	(struct interrupt_generator): Delete.
	(enum interrupt_type): Drop int_none.
	(sim_open): Initialize WATCHPOINT module.
	(sim_resume, sim_run): Rename sim_resume to sim_run.
	(sim_engine_run): Replace interrupt code with call to sim-events.
	(sim_set_interrupt): Delete.
	(sim_parse_number): Delete.

Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Thu Sep  4 18:11:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (fetch_argv): New function, fetch a arg vector from
 	simulator memory.

	* configure.in: Check for fork, execve, execv.
	* configure: Regenerate.

	* interp.c (sim_store_register, sim_fetch_register): Use H2T_4 and
 	T2H_4 for byte swapping.

	* sim-main.h, interp.c (get_word, get_half, get_byte, put_word,
 	put_half, put_byte): Delete.

	* Makefile.in (SIM_OBJS): Add sim-memopt.o module.

	* sim-main.h (load_mem, store_mem): Redefine as macros.
	(IMEM, IMEM_IMMED): New macros - fetch instructions.

	* simops.c (OP_10007E0): For SYS_read, SYS_write, SYS_open
 	transfer data via a buffer.
	(fetch_str): New function, fetch string from memory.

	* Makefile.in (SIM_OBJS): Add sim-hrw.o module.

	* interp.c (sim_open): Establish memory maps using sim-memopt.c
 	via sim_do_command.
	(sim_do_command): Print error if memory-map command is used. Call
 	sim_args_command.
	(map): Delete, replaced by sim-core.
	(sim_memory_init): Delete, replaced by sim-core.
	(sim_set_memory_map): Delete, replaced by sim-memopt.
	(load_mem): Delete, replaced by sim-core.
	(store_mem): Delete, replaced by sim-core.
	(sim_write): Delete, replaced by sim-hrw.
	(sim_read): Delete, replaced by sim-hrw.

	* sim-main.h (struct sim_state): Remove memory members, using
 	sim-core.c

Wed Sep  3 10:18:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-main.h: Replace SIM_HAVE_FLATMEM with mem ptr.
	* interp.c (map): Do not add to a void pointer.
	
	* Makefile.in (INCLUDE): Add sim-main.h

	* configure.in: Check for time.h
	* configure: Re-generate.

	* interp.c (struct interrupt_generator): Make time unsigned long,
 	address SIM_ADDR.
	(sim_resume): Make oldpc SIM_ADDR.
	(struct hash_entry): Make mask/opcode unsigned.

	* v850_sim.h (struct simops ): Make opcode and mask unsigned.

	* simops.c (utime.h): Include if available.
	(OP_10007E0): Check for UTIME function.
	(divun): Put parentheses around shift argument.
	(OP_640): Put parentheses around shift argument, was wrong.
	(OP_107F0): Return something.

	* interp.c (sim_parse_number): Use strtoul not strtol.
	(sim_resume): Use sim_elapsed_time_get to keep track of the time.

	* configure.in (SIM_AC_OPTION_WARNINGS): Add.
 	(SIM_AC_OPTION_ENDIAN): Set to hardwired big.
	(SIM_AC_OPTION_HOST_ENDIAN): Add.
	(AC_CHECK_FUNCS): Add utime.
	(AC_CHECK_HEADERS): Add stdlib.h, string.h, strings.h, utime.h
	configure: Regenerate.
	

	* Makefile.in (SIM_RUN_OBJS): Use nrun.o.
	(SIM_OBJS): Add sim-io.o, sim-hload.o, sim-utils.o, sim-options.o,
 	sim-config.o, sim-module.o, sim-events.o, sim-core.o,
 	sim-endian.o, sim-engine.o, sim-trace.o, sim-profile.o
	(SIM_ENDIAN, SIM_WARNGINS): Define.

	* simops.c (OP_10007E0): Use sim_io_* for transfers.

	* interp.c (sim_resume): Pass sd around.

	* simops.c (sim-main.h): Include.

	* gencode.c (write_template): Generate #include sim-main.h.
	(write_opcodes): Ditto.
	
	* interp.c (prog_bfd, prog_bfd_was_opened_p): Delete.
	(v850_callback): Ditto.
	(sim_kind, myname): Ditto.
	(lookup_hash): Pass SD. Use sim_io_error.
	(sim_set_memory_map): Pass in SD, use.
	(init_system): Pass in SD, use.
	(sim_open): Update.
	(sim_set_profile): Delete.
	(sim_set_profile_size): Delete.
	(do_interrupt): Pass in SD, use.
	(sim_info): Use sim_io_printf.
	(sim_create_inferior): Reset registers.  Set PC from prog_bfd
 	argument.
	(sim_load): Delete, use common/sim-hload.c
	(sim_size): Rename to sim_memory_init.
	(sim_write): Remove call to init_system.
	(init_system): Delete.
	(sim_set_callbacks): Delete.
	(sim_set_interrupt): Pass in SD, use.
	(start_time): Delete.
	
	* v850_sim.h: Remove everything except `struct simops' from here.
 	* sim-main.h: Move most to here.
	* gencode.c: Move #includes to here.

	* sim-main.h(struct _sim_cpu): Rename struct _state.
	(#define PC, et.al.): Update
	(v850_callback): Delete.  Replaced with SIM_DESC arg.
	(int8, uint8, int16, uint16, int32, uint32): Define types using
 	unsigned8 et.al from common/sim-types.h.
	* sim-main.h (State): Define as STATE_CPU.

Mon Sep  1 12:07:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure.in: Check for time, chmod.
	* configure: Regenerate.
	* simops.c (SYS_time, SYS_chmod): Use HAVE_TIME, HAVE_CHMOD.
	
	* simops.c (../../libgloss/v850/sys/syscall.h): Include instead of
 	sys/syscall.h.
	(OP_10007E0): Check the existance each SYS_* macro independantly.

	* v850_sim.h (SIGQUIT, SIGTRAP): Only define if missing.

Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Tue Aug 26 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (sim_kill): Delete.
	(sim_create_inferior): Add ABFD argument.
	(sim_load): Move setting of PC from here.
	(sim_create_inferior): To here.

Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Mon Aug 25 11:31:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (sim_open): Add ABFD argument.

start-sanitize-v850e
Fri Aug 22 10:39:28 1997  Nick Clifton  <nickc@cygnus.com>

	* simops.c (bsh): Only set CY flag if either of the bottom
	bytes is zero.
	
	* simops.c (prepare, dispose): Lower numbered
	registers go to higher numbered address.

	* simops.c (unsigned divide instructions): S bit set if result has
	top bit set.
	
start-sanitize-v850eq
	* simops.c (pushml, pushmh, popml, popmh): Lower numbered
	registers go to higher numbered address.
end-sanitize-v850eq
end-sanitize-v850e
	
Wed Aug 20 13:56:35 1997  Nick Clifton  <nickc@cygnus.com>

	* simops.c (OP_107E0, OP_107F0, OP_307E0, OP_307F0): Use correct
	interpretation of SR bit in list18 structure.
start-sanitize-v850eq
	(divn, divun): New functions to perform N step divide functions.
end-sanitize-v850eq

start-sanitize-v850eq
Mon Aug 18 10:59:02 1997  Nick Clifton  <nickc@cygnus.com>

	* simops.c (OP_300, OP_400, OP_60, OP_70): Support variant opcodes
	with US bit set in the PSW.
end-sanitize-v850eq

Wed Aug 13 19:06:55 1997  Nick Clifton  <nickc@cygnus.com>

	* interp.c (sim_resume): Opcode functions return amount to be
	added to PC and all opcodes take a standard format in the OP[]
	array.
	
	(do_format_*): Functions removed.

	* v850_sim.h (SP, EP): New register mnemonics.
	
	* gencode.c (write_header): Functions prototypes return an
	integer.

	* simops.c: Opcode functions return amount to be added to PC.
	
start-sanitize-v850e
	* v850_sim.h (CTPC, CTPSW, CTBP): New register mnemonics.
	
	* simops.c: Add support for v850e instructions.
	
end-sanitize-v850e

start-sanitize-v850eq
	* simops.c: Add support for v850eq instructions.
end-sanitize-v850eq
	
Tue May 20 10:24:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (sim_open): Add callback argument.
	(sim_set_callbacks): Delete SIM_DESC argument.

Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Wed Apr 23 17:20:16 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interp.c (prog_bfd_was_opened_p): New static local.
	(prog_bfd): New global variable.
	(sim_open): Undo patch to add -E support.
	(sim_close): Close prog_bfd if sim_load opened it.
	(sim_load): Record bfd of loaded file in prog_bfd.
	* simops.c (prog_bfd): Renamed from exec_bfd.

Fri Apr 18 14:17:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (sim_stop): Stub function.

Thu Apr 17 03:53:18 1997  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in (SIM_OBJS): Add sim-load.o.
	* interp.c (sim_kind, myname): New static locals.
	(sim_open): Set sim_kind, myname.  Ignore -E arg.
	(sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
	load file into simulator.  Set start address from bfd.
	(sim_create_inferior): Return SIM_RC.  Delete arg start_address.

Wed Apr 16 19:53:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* simops.c (OP_10007E0): Only provide system calls SYS_execv,
 	SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.

Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interp.c (sim_open): New arg `kind'.

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

	* configure: Re-generate.

Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>

	* configure: Regenerate to track ../common/aclocal.m4 changes.

Thu Mar 13 13:00:54 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interp.c (sim_open): New SIM_DESC result.  Argument is now
	in argv form.
	(other sim_*): New SIM_DESC argument.

Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in (@COMMON_MAKEFILE_FRAG): Use
	COMMON_{PRE,POST}_CONFIG_FRAG instead.
	* configure.in: sinclude ../common/aclocal.m4.
	* configure: Regenerated.

Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* configure configure.in Makefile.in:  Update to new configure
	scheme which is more compatible with WinGDB builds.
	* configure.in:  Improve comment on how to run autoconf.
	* configure:  Re-run autoconf to get new ../common/aclocal.m4.
	* Makefile.in:  Use autoconf substitution to install common
	makefile fragment.

Mon Jan 20 16:05:34 1997  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_{E0,2E0,6E0}): The multiply operations sign extend,
	not zero extend.

Tue Jan 14 17:06:03 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* simops.c:  Put ifdefs around things to make MSVC happy.  Get rid
	of unistd.h.  Disable SYS_stat, SYS_chown, SYS_time, SYS_times,
	SYS_gettimeofday and SYS_utime from MSVC.

Tue Dec 31 18:11:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (OP_10007E0): Know that kill encodes the signal number
	via: 0xdead0000 | signal and turn it back into a signal.

Fri Dec 27 14:44:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* v850_sim.h (SIG_V850_EXIT): Define as -1.

	* interp.c (sim_open): Cast calloc function.
	(sim_stop_reason): If signal is SIG_V850_EXIT, inform gdb the
	program exited with the appropriate exit code.
	(sim_set_interrupt): Declare buildargv.

	* simops.c (OP_10007E0): Make exit signal normal exit.  Make time
	type correct and work on big endian systems.

Wed Nov 20 02:18:44 1996  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in: Delete stuff moved to ../common/Make-common.in.
	(SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
	* configure.in: Simplify using macros in ../common/aclocal.m4.
	Call AC_CHECK_HEADERS(unistd.h).
	* configure: Regenerated.
	* config.in: New file.
	* simops.c: #include "config.h".  #include <unistd.h> if present.

Sun Nov  3 23:02:54 1996  Stan Shebs  <shebs@andros.cygnus.com>

	* v850_sim.h (State): New slots dummy_mem, pending_nmi.
	(EIPC, etc): New macros for system registers.
	* simops.c, interp.c: Use everywhere.

	* interp.c: Add support for interrupts issued by interrupt
	generators, either PC- or time-based.  Controlled by simulator
	command "sim interrupt".

	* interp.c: Add support for variable-size allocation of memory,
	via simulator command "sim memory-map".
	(map): Issue SIGSEGV for references to invalid memory regions.
	
Thu Oct 31 14:44:10 1996  Gavin Koch  <gavin@cygnus.com>
        
        * simops.c: Include <sys/time.h> for struct timeval and 
        struct timezone.
        
Wed Oct 30 08:49:10 1996  Jeffrey A Law  (law@cygnus.com)

	* simops.c (OP_10007E0): Handle SYS_times and SYS_gettimeofday.

	* simops.c (OP_10007E0): Handle SYS_time.

Tue Oct 29 14:22:55 1996  Jeffrey A Law  (law@cygnus.com)

	* simops.c: Include <sys/stat.h>.
	(OP_10007E0): Handle SYS_stat.

Thu Oct 24 12:26:35 1996  Jeffrey A Law  (law@cygnus.com)

	* simops.c (OP_10007E0): Don't declare errno.

	* simops.c (OP_500): Mask off low bit in displacement
	for sld.w.
	(OP_501): Similarly.

	* simops.c (OP_500): Fix displacement handling for sld.w.
	(OP_501): Similarly for sst.w.

	* simops.c (trace_input): Remove all references to SEXT7.
	(OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
	is zero extended for sst/sld instructions.
	* v850_sim.h (SEX7): Delete.  It's no longer needed (and it
	was incorrect anyway).

Thu Oct 24 10:33:33 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* Makefile.in:  Get rid of srcroot.  Set all INSTALL macros via
	autoconf.
	* gencode.c (write_opcodes):  Pad operands field to account for
	MSVC braindamage.
	* simops.c:  Include errno.h.  Exclude SYS_chown, since MSVC
	doesn't support it.  (Why is this here in the first place?!?)
	* v850_sim.h:  Get rid of 64 bit defs.  Also, get rid of #elif's.
	Change number of operands in struct simops from 9 to 6.  Define
	SIGTRAP and SIGQUIT for MSVC.

Tue Oct 15 16:19:51 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* interp.c (MEM_SIZE):  It's now bytes, not a power of 2.
	* (map):  Add support for external mem in the 1->2 meg range.
	Also, abort() when memory access is way out of bounds.  (Better to
	die than to give wrong result.  (This will be fixed later.))
	* (sim_size):  MEM_SIZE is now bytes, not shift factor.

Tue Oct  1 15:53:24 1996  Gavin Koch <gavin@cygnus.com>
        
        * simops.c (trace_input): Swapped order of operands for output
        output of OP_IMM_REG.  Changed the fetching of the operands for
        OP_LOAD32, and OP_STORE32 to work like op-function.
        
Mon Sep 30 15:46:33 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* interp.c:  Move includes of remote-sim.h and callback.h to
	v850-sim.h.
	* (lookup_hash): Add PC to report of hash failure.
	* (map load_mem store_mem):  New memory subsystem.  Models V851
	memory system.
	* (sim_write sim_read):  Use new memory subsystem.
	* (sim_resume):  Don't load and save PC into EIPC anymore.  Needed
	to make user-defined traps work right.
	* simops.c (OP_*):  Use new memory subsystem.
	* (OP_14007E0 (reti)):  Implement reti.
	* (OP_14996E0 (trap)):  Implement user-defined traps.  Move I/O to
	trap 31.  Use new memory subsystem.
	* v850_sim.h:  Prototypes for load_mem, store_mem and map.  Use
	load_mem in RLW macro.

Fri Sep 27 18:34:09 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* gencode.c (write_opcodes):  Output hex values for opcode mask
	and patterns.
	* interp.c (sim_resume):  Save and restore PC from the appropriate
	register.
	* (sim_fetch_register sim_store_register):  Fix byte-order problem
	with reading and writing registers.
	* simops.c (OP_FFFF):  Implement pseudo-breakpoint insn.

Fri Sep 27 17:42:37 1996  Jeffrey A Law  (law@cygnus.com)

	* simops.c (trace_input): Fix thinko. 

Wed Sep 18 09:54:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (exec_bfd): Rename from sim_bfd.
	(trace_input): Ditto.

Thu Sep 12 12:03:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c (trace_input): Use find_nearest_line to print line
	number, function name or file name of PC.

Wed Sep 11 16:44:37 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* simops.c: Add tracing support.  Use SEXTxx macros instead of
	doing hardwired shifts.

	* configure.in (--enable-sim-cflags): Add switch to add additional
	flags to simulator buld.  If --enable-sim-cflags=trace, turn on
	tracing.
	* configure: Regenerate.

	* Makefile.in: Don't require a VPATH capable make if configuring
	in the same directory.  Don't use CFLAGS for configuration flags.
	Add flags from --enable-sim-cflags.  Support canadian cross
	builds.  Rebuild whole simulator if include files change.

	* interp.c (v850_debug): New global for debugging.
	(lookup_hash,sim_size,sim_set_profile): Use
	printf_filtered callback, instead of calling printf directly.
	(sim_{open,trace}): Enable tracing if -t and compiled for tracing.

	* v850_sim.h: Use limits.h to set the various sized types.
	(SEXT{5,7,16,22}): New macros.

Mon Sep  9 20:50:46 1996  Jeffrey A Law  (law@cygnus.com)

	* interp.c (hash): Make this an inline function
	when compiling with GCC.  Simplify.
	* simpos.c: Explicitly include "sys/syscall.h".  Remove
	some #if 0'd code.  Enable more emulated syscalls.

Wed Sep  4 01:48:55 1996  Jeffrey A Law  (law@cygnus.com)

	* interp.c: Fix sign bit handling for add and sub instructions.

Tue Sep  3 10:20:30 1996  Jeffrey A Law  (law@cygnus.com)

	* gencode.c: Fix various indention & style problems.
	Remove test code.  Remove #if 0 code.
	* interp.c: Provide prototypes for all static functions.
	Fix minor indention problems.
	(sim_open, sim_resume): Remove unused variables.
	(sim_read): Return type is "int".
	* simops.c: Remove unused variables.
	(divh): Make result of divide-by-zero zero.
	(setf): Initialize result to keep compiler quiet.
	(sar instructions): These just clear the overflow bit.
	* v850_sim.h: Provide prototypes for put_byte, put_half
	and put_word.

	* interp.c: OP should be an array of 32bit operands!
	(v850_callback): Declare.
	(do_format_5): Fix extraction of OP[0].
	(sim_size): Remove debugging printf.
	(sim_set_callbacks): Do something useful.
	(sim_stop_reason): Gross hacks to get c-torture running.
	* simops.c: Simplify code for computing targets of bCC
	insns.   Invert 's' bit if 'ov' bit is set for some
	instructions.  Fix 'cy' bit handling for numerous
	instructions.  Make the simulator stop when a halt
	instruction is encountered.  Very crude support for
	emulated syscalls (trap 0).
	* v850_sim.h: Include "callback.h" and declare
	v850_callback.  Items in the operand array are 32bits.

Sun Sep  1 22:35:35 1996  Jeffrey A Law  (law@cygnus.com)

	* interp.c (sim_resume): Fix code to check for a format 3
	opcode.
	* simops.c: bCC insns only argument is a constant, not a
	register value (duh...)

Fri Aug 30 10:33:49 1996  Jeffrey A Law  (law@cygnus.com)

	* simops.c: Fix "not1" and "set1".

	* simops.c: Don't forget to initialize temp for
	"ld.h" and "ld.w"

	* interp.c: Remove various debugging printfs.

	* simops.c: Fix satadd, satsub boundary case handling.

	* interp.c (hash): Fix.
	* interp.c (do_format_8): Get operands correctly and
	call the target function.
	* simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".

Thu Aug 29 13:53:29 1996  Jeffrey A Law  (law@cygnus.com)

	* interp.c (do_format_4): Get operands correctly and
	call the target function.
	* simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
	"sst.h", and "sst.w".

	* v850_sim.h: The V850 doesn't have split I&D spaces.  Change
	accordingly.  Remove many unused definitions.
	* interp.c: The V850 doesn't have split I&D spaces.  Change
	accordingly.
	(get_longlong, get_longword, get_word): Deleted.
	(write_longlong, write_longword, write_word): Deleted.
	(get_operands): Deleted.
	(get_byte, get_half, get_word): New functions.
	(put_byte, put_half, put_word): New functions.
	* simops.c: Remove unused functions.  Rough cut at
	"ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.

	* v850_sim.h (struct _state): Remove "psw" field.  Add
	"sregs" field.
	(PSW): Remove bogus definition.
	* simops.c: Change condition code handling to use the psw
	register within the sregs array.  Handle "ldsr" and "stsr".

	* simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".

	* interp.c (do_format_5): Get operands correctly and
	call the target function.
	(sim_resume): Don't do a PC update for format 5 instructions.
	* simops.c: Handle "jarl" and "jmp" instructions.

	* simops.c: Fix minor typos.  Handle "cmp", "setf", "tst"
	"di", and "ei" instructions correctly.

	* interp.c (do_format_3): Get operands correctly and call
	the target function.
	* simops.c: Handle bCC instructions.

	* simops.c: Add condition code handling to shift insns.
	Fix minor typos in condition code handling for other insns.

	* Makefile.in: Fix typo.
	* simops.c: Add condition code handling to "sub" "subr" and
	"divh" instructions.

	* interp.c (hash): Update to be more accurate.
	(lookup_hash): Call hash rather than computing the hash
	code here.
	(do_format_1_2): Handle format 1 and format 2 instructions.
	Get operands correctly and call the target function.
	(do_format_6): Get operands correctly and call the target
	function.
	(do_formats_9_10): Rough cut so shift ops will work.
	(sim_resume): Tweak to deal with format 1 and format 2
	handling in a single funtion.  Don't update the PC
	for format 3 insns.  Fix typos.
	* simops.c: Slightly reorganize.  Add condition code handling
	to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
	and "not" instructions.
	* v850_sim.h (reg_t): Registers are 32bits.
	(_state): The V850 has 32 general registers.  Add a 32bit
	psw and pc register too.  Add accessor macros

	* Makefile.in, interp.c, v850_sim.h: Bring over endianness
	changes from the d10v simulator.

	* simops.c: Add shift support.

	* simops.c: Add multiply & divide support.  Abort for system
	instructions.

	* simops.c: Add logicals, mov, movhi, movea, add, addi, sub
	and subr.  No condition codes yet.

Wed Aug 28 13:53:22 1996  Jeffrey A Law  (law@cygnus.com)

	* ChangeLog, Makefile.in, configure, configure.in, v850_sim.h, 
	gencode.c, interp.c, simops.c: Created.