Update to reflect change to sim/common/aclocal.m4 (allow sim/common
[deliverable/binutils-gdb.git] / sim / mips / ChangeLog
CommitLineData
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1Mon Sep 15 17:36:15 1997 Andrew Cagney <cagney@b1.cygnus.com>
2
3 * configure: Regenerated to track ../common/aclocal.m4 changes.
4
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5Fri Sep 12 12:01:39 1997 Andrew Cagney <cagney@b1.cygnus.com>
6
7 * interp.c (mips_options): Fix samples option short form, should
8 be `x'.
9
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10Thu Sep 11 09:35:29 1997 Andrew Cagney <cagney@b1.cygnus.com>
11
12 * interp.c (sim_info): Enable info code. Was just returning.
13
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14Tue Sep 9 17:30:57 1997 Andrew Cagney <cagney@b1.cygnus.com>
15
16 * interp.c (decode_coproc): Clarify warning about unsuported MTC0,
17 MFC0.
18
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19Tue Sep 9 16:28:28 1997 Andrew Cagney <cagney@b1.cygnus.com>
20
21 * gencode.c (build_instruction): Use SIGNED64 for 64 bit
22 constants.
23 (build_instruction): Ditto for LL.
24
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25start-sanitize-tx19
26Sun Sep 7 16:05:46 1997 Gavin Koch <gavin@cygnus.com>
27
28 * mips/configure.in, mips/gencode: Add tx19/r1900.
29
30end-sanitize-tx19
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31Thu Sep 4 17:21:23 1997 Doug Evans <dje@seba>
32
33 * configure: Regenerated to track ../common/aclocal.m4 changes.
34
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35start-sanitize-r5900
36Mon Sep 1 18:43:30 1997 Andrew Cagney <cagney@b1.cygnus.com>
37
38 * gencode.c (build_instruction): For "pabsw" and "pabsh", check
39 for overflow due to ABS of MININT, set result to MAXINT.
40 (build_instruction): For "psrlvw", signextend bit 31.
41
42end-sanitize-r5900
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43Wed Aug 27 18:13:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
44
45 * configure: Regenerated to track ../common/aclocal.m4 changes.
46 * config.in: Ditto.
47
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48Wed Aug 27 14:12:27 1997 Andrew Cagney <cagney@b1.cygnus.com>
49
50 * interp.c (sim_open): Add call to sim_analyze_program, update
51 call to sim_config.
52
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53Tue Aug 26 10:40:07 1997 Andrew Cagney <cagney@b1.cygnus.com>
54
55 * interp.c (sim_kill): Delete.
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56 (sim_create_inferior): Add ABFD argument. Set PC from same.
57 (sim_load): Move code initializing trap handlers from here.
58 (sim_open): To here.
59 (sim_load): Delete, use sim-hload.c.
60
61 * Makefile.in (SIM_OBJS): Add sim-hload.o module.
7230ff0f 62
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63Mon Aug 25 17:50:22 1997 Andrew Cagney <cagney@b1.cygnus.com>
64
65 * configure: Regenerated to track ../common/aclocal.m4 changes.
66 * config.in: Ditto.
67
68Mon Aug 25 15:59:48 1997 Andrew Cagney <cagney@b1.cygnus.com>
69
70 * interp.c (sim_open): Add ABFD argument.
71 (sim_load): Move call to sim_config from here.
72 (sim_open): To here. Check return status.
73
74start-sanitize-r5900
75 * gencode.c (build_instruction): Do not define x8000000000000000,
76 x7FFFFFFFFFFFFFFF, or xFFFFFFFF80000000.
77
78end-sanitize-r5900
79start-sanitize-r5900
80Mon Jul 28 19:49:29 1997 Andrew Cagney <cagney@b1.cygnus.com>
81
82 * gencode.c (build_instruction): For "pdivw", "pdivbw" and
83 "pdivuw" check for overflow due to signed divide by -1.
84
85end-sanitize-r5900
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86Fri Jul 25 15:00:45 1997 Gavin Koch <gavin@cygnus.com>
87
88 * gencode.c (build_instruction): Two arg MADD should
89 not assign result to $0.
90
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91start-sanitize-r5900
92Thu Jul 10 11:58:48 1997 Andrew Cagney <cagney@critters.cygnus.com>
93
94 * gencode.c (build_instruction): For "ppac5" use unsigned
95 arrithmetic so that the sign bit doesn't smear when right shifted.
96 (build_instruction): For "pdiv" perform sign extension when
97 storing results in HI and LO.
98 (build_instructions): For "pdiv" and "pdivbw" check for
99 divide-by-zero.
100 (build_instruction): For "pmfhl.slw" update hi part of dest
101 register as well as low part.
102 (build_instruction): For "pmfhl" portably handle long long values.
103 (build_instruction): For "pmfhl.sh" correctly negative values.
104 Store half words 2 and three in the correct place.
105 (build_instruction): For "psllvw", sign extend value after shift.
106
107end-sanitize-r5900
108Thu Jun 26 12:13:17 1997 Angela Marie Thomas (angela@cygnus.com)
109
110 * sim/mips/configure: Change default_sim_endian to 0 (bi-endian)
111 * sim/mips/configure.in: Regenerate.
112
113Wed Jul 9 10:29:21 1997 Andrew Cagney <cagney@critters.cygnus.com>
114
115 * interp.c (SUB_REG_UW, SUB_REG_SW, SUB_REG_*): Use more explicit
116 signed8, unsigned8 et.al. types.
117
118start-sanitize-r5900
119 * gencode.c (build_instruction): For PMULTU* do not sign extend
120 registers. Make generated code easier to debug.
121
122end-sanitize-r5900
123 * interp.c (SUB_REG_FETCH): Handle both little and big endian
124 hosts when selecting subreg.
125
126start-sanitize-r5900
127Tue Jul 8 18:07:20 1997 Andrew Cagney <cagney@andros.cygnus.com>
128
129 * gencode.c (type_for_data_len): For 32bit operations concerned
130 with overflow, perform op using 64bits.
131 (build_instruction): For PADD, always compute operation using type
132 returned by type_for_data_len.
133 (build_instruction): For PSUBU, when overflow, saturate to zero as
134 actually underflow.
135
136end-sanitize-r5900
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137Wed Jul 2 11:54:10 1997 Jeffrey A Law (law@cygnus.com)
138
649625bb 139start-sanitize-r5900
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140 * gencode.c (build_instruction): Handle "pext5" according to
141 version 1.95 of the r5900 ISA.
142
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143 * gencode.c (build_instruction): Handle "ppac5" according to
144 version 1.95 of the r5900 ISA.
649625bb 145
1e851d2c 146end-sanitize-r5900
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147 * interp.c (sim_engine_run): Reset the ZERO register to zero
148 regardless of FEATURE_WARN_ZERO.
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149 * gencode.c (FEATURE_WARNINGS): Remove FEATURE_WARN_ZERO.
150
151Wed Jun 4 10:43:14 1997 Andrew Cagney <cagney@b1.cygnus.com>
152
153 * interp.c (decode_coproc): Implement MTC0 N, CAUSE.
154 (SignalException): For BreakPoints ignore any mode bits and just
155 save the PC.
156 (SignalException): Always set the CAUSE register.
157
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158Tue Jun 3 05:00:33 1997 Andrew Cagney <cagney@b1.cygnus.com>
159
160 * interp.c (SignalException): Clear the simDELAYSLOT flag when an
161 exception has been taken.
162
163 * interp.c: Implement the ERET and mt/f sr instructions.
164
ae19b07b 165start-sanitize-r5900
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166Mon Jun 2 23:28:19 1997 Andrew Cagney <cagney@b1.cygnus.com>
167
168 * gencode.c (build_instruction): For paddu, extract unsigned
169 sub-fields.
170
171 * gencode.c (build_instruction): Saturate padds instead of padd
172 instructions.
173
174end-sanitize-r5900
175Sat May 31 00:44:16 1997 Andrew Cagney <cagney@b1.cygnus.com>
176
177 * interp.c (SignalException): Don't bother restarting an
178 interrupt.
179
180Fri May 30 23:41:48 1997 Andrew Cagney <cagney@b1.cygnus.com>
181
182 * interp.c (SignalException): Really take an interrupt.
183 (interrupt_event): Only deliver interrupts when enabled.
184
185Tue May 27 20:08:06 1997 Andrew Cagney <cagney@b1.cygnus.com>
186
187 * interp.c (sim_info): Only print info when verbose.
188 (sim_info) Use sim_io_printf for output.
189
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190Tue May 27 14:22:23 1997 Andrew Cagney <cagney@b1.cygnus.com>
191
192 * interp.c (CoProcPresent): Add UNUSED attribute - not used by all
193 mips architectures.
194
195Tue May 27 14:22:23 1997 Andrew Cagney <cagney@b1.cygnus.com>
196
197 * interp.c (sim_do_command): Check for common commands if a
198 simulator specific command fails.
199
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200Thu May 22 09:32:03 1997 Gavin Koch <gavin@cygnus.com>
201
202 * interp.c (sim_engine_run): ifdef out uses of simSTOP, simSTEP
203 and simBE when DEBUG is defined.
204
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205Wed May 21 09:08:10 1997 Andrew Cagney <cagney@b1.cygnus.com>
206
207 * interp.c (interrupt_event): New function. Pass exception event
208 onto exception handler.
209
210 * configure.in: Check for stdlib.h.
211 * configure: Regenerate.
212
213 * gencode.c (build_instruction): Add UNUSED attribute to tempS
214 variable declaration.
215 (build_instruction): Initialize memval1.
216 (build_instruction): Add UNUSED attribute to byte, bigend,
217 reverse.
218 (build_operands): Ditto.
219
220 * interp.c: Fix GCC warnings.
221 (sim_get_quit_code): Delete.
222
223 * configure.in: Add INLINE, ENDIAN, HOSTENDIAN and WARNINGS.
224 * Makefile.in: Ditto.
225 * configure: Re-generate.
226
227 * Makefile.in (SIM_OBJS): Add sim-watch.o module.
228
229Tue May 20 15:08:56 1997 Andrew Cagney <cagney@b1.cygnus.com>
230
231 * interp.c (mips_option_handler): New function parse argumes using
232 sim-options.
233 (myname): Replace with STATE_MY_NAME.
234 (sim_open): Delete check for host endianness - performed by
235 sim_config.
236 (simHOSTBE, simBE): Delete, replaced by sim-endian flags.
237 (sim_open): Move much of the initialization from here.
238 (sim_load): To here. After the image has been loaded and
239 endianness set.
240 (sim_open): Move ColdReset from here.
241 (sim_create_inferior): To here.
242 (sim_open): Make FP check less dependant on host endianness.
243
244 * Makefile.in (SIM_RUN_OBJS): Set to nrun.o - use new version or
245 run.
246 * interp.c (sim_set_callbacks): Delete.
247
248 * interp.c (membank, membank_base, membank_size): Replace with
249 STATE_MEMORY, STATE_MEM_SIZE, STATE_MEM_BASE.
250 (sim_open): Remove call to callback->init. gdb/run do this.
251
252 * interp.c: Update
253
254 * sim-main.h (SIM_HAVE_FLATMEM): Define.
255
256 * interp.c (big_endian_p): Delete, replaced by
257 current_target_byte_order.
258
259Tue May 20 13:55:00 1997 Andrew Cagney <cagney@b1.cygnus.com>
260
261 * interp.c (host_read_long, host_read_word, host_swap_word,
262 host_swap_long): Delete. Using common sim-endian.
263 (sim_fetch_register, sim_store_register): Use H2T.
264 (pipeline_ticks): Delete. Handled by sim-events.
265 (sim_info): Update.
266 (sim_engine_run): Update.
267
268Tue May 20 13:42:03 1997 Andrew Cagney <cagney@b1.cygnus.com>
269
270 * interp.c (sim_stop_reason): Move code determining simEXCEPTION
271 reason from here.
272 (SignalException): To here. Signal using sim_engine_halt.
273 (sim_stop_reason): Delete, moved to common.
274
275Tue May 20 10:19:48 1997 Andrew Cagney <cagney@b2.cygnus.com>
276
277 * interp.c (sim_open): Add callback argument.
278 (sim_set_callbacks): Delete SIM_DESC argument.
279 (sim_size): Ditto.
280
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281Mon May 19 18:20:38 1997 Andrew Cagney <cagney@b1.cygnus.com>
282
283 * Makefile.in (SIM_OBJS): Add common modules.
284
285 * interp.c (sim_set_callbacks): Also set SD callback.
286 (set_endianness, xfer_*, swap_*): Delete.
287 (host_read_word, host_read_long, host_swap_word, host_swap_long):
288 Change to functions using sim-endian macros.
289 (control_c, sim_stop): Delete, use common version.
290 (simulate): Convert into.
291 (sim_engine_run): This function.
292 (sim_resume): Delete.
293
294 * interp.c (simulation): New variable - the simulator object.
295 (sim_kind): Delete global - merged into simulation.
296 (sim_load): Cleanup. Move PC assignment from here.
297 (sim_create_inferior): To here.
298
299 * sim-main.h: New file.
300 * interp.c (sim-main.h): Include.
301
302Thu Apr 24 00:39:51 1997 Doug Evans <dje@canuck.cygnus.com>
303
304 * configure: Regenerated to track ../common/aclocal.m4 changes.
305
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306Wed Apr 23 17:32:19 1997 Doug Evans <dje@canuck.cygnus.com>
307
308 * tconfig.in (SIM_HAVE_BIENDIAN): Define.
309
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310Mon Apr 21 17:16:13 1997 Gavin Koch <gavin@cygnus.com>
311
312 * gencode.c (build_instruction): DIV instructions: check
313 for division by zero and integer overflow before using
314 host's division operation.
315
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316Thu Apr 17 03:18:14 1997 Doug Evans <dje@canuck.cygnus.com>
317
318 * Makefile.in (SIM_OBJS): Add sim-load.o.
319 * interp.c: #include bfd.h.
320 (target_byte_order): Delete.
321 (sim_kind, myname, big_endian_p): New static locals.
322 (sim_open): Set sim_kind, myname. Move call to set_endianness to
323 after argument parsing. Recognize -E arg, set endianness accordingly.
324 (sim_load): Return SIM_RC. New arg abfd. Call sim_load_file to
325 load file into simulator. Set PC from bfd.
326 (sim_create_inferior): Return SIM_RC. Delete arg start_address.
327 (set_endianness): Use big_endian_p instead of target_byte_order.
328
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329Wed Apr 16 17:55:37 1997 Andrew Cagney <cagney@b1.cygnus.com>
330
331 * interp.c (sim_size): Delete prototype - conflicts with
332 definition in remote-sim.h. Correct definition.
333
334Mon Apr 7 15:45:02 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
335
336 * configure: Regenerated to track ../common/aclocal.m4 changes.
337 * config.in: Ditto.
338
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339Wed Apr 2 15:06:28 1997 Doug Evans <dje@canuck.cygnus.com>
340
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341 * interp.c (sim_open): New arg `kind'.
342
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343 * configure: Regenerated to track ../common/aclocal.m4 changes.
344
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345Wed Apr 2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
346
347 * configure: Regenerated to track ../common/aclocal.m4 changes.
348
349Tue Mar 25 11:38:22 1997 Doug Evans <dje@canuck.cygnus.com>
350
351 * interp.c (sim_open): Set optind to 0 before calling getopt.
352
353Wed Mar 19 01:14:00 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
354
355 * configure: Regenerated to track ../common/aclocal.m4 changes.
356
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357Mon Mar 17 10:52:59 1997 Gavin Koch <gavin@cetus.cygnus.com>
358
359 * interp.c : Replace uses of pr_addr with pr_uword64
360 where the bit length is always 64 independent of SIM_ADDR.
361 (pr_uword64) : added.
362
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363Mon Mar 17 15:10:07 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
364
365 * configure: Re-generate.
366
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367Fri Mar 14 10:34:11 1997 Michael Meissner <meissner@cygnus.com>
368
369 * configure: Regenerate to track ../common/aclocal.m4 changes.
370
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371Thu Mar 13 12:51:36 1997 Doug Evans <dje@canuck.cygnus.com>
372
373 * interp.c (sim_open): New SIM_DESC result. Argument is now
374 in argv form.
375 (other sim_*): New SIM_DESC argument.
376
377start-sanitize-r5900
378Wed Feb 26 18:32:21 1997 Gavin Koch <gavin@cygnus.com>
379
380 * gencode.c (POP_AND,POP_OR,POP_NOR,POP_XOR):
381 Change values to avoid overloading DOUBLEWORD which is tested
382 for all insns.
383 * gencode.c: reinstate "offending code".
53b9417e 384
56e7c849 385end-sanitize-r5900
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386Mon Feb 24 22:47:14 1997 Dawn Perchik <dawn@cygnus.com>
387
388 * interp.c: Fix printing of addresses for non-64-bit targets.
389 (pr_addr): Add function to print address based on size.
390start-sanitize-r5900
391 * gencode.c: #ifdef out offending code until a permanent fix
392 can be added. Code is causing build errors for non-5900 mips targets.
393end-sanitize-r5900
394
395start-sanitize-r5900
396Thu Feb 20 10:40:24 1997 Gavin Koch <gavin@cetus.cygnus.com>
397
398 * gencode.c (process_instructions): Correct test for ISA dependent
399 architecture bits in isa field of MIPS_DECODE.
400
401end-sanitize-r5900
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402Wed Feb 19 14:42:09 1997 Mark Alexander <marka@cygnus.com>
403
404 * interp.c (simopen): Add support for LSI MiniRISC PMON vectors.
405
2d18fbc6 406start-sanitize-r5900
53b9417e 407Tue Feb 18 17:03:47 1997 Gavin Koch <gavin@cygnus.com>
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408
409 * gencode.c (MIPS_DECODE): Correct instruction feature flags for
410 PMADDUW.
411
412end-sanitize-r5900
413Thu Feb 13 14:08:30 1997 Ian Lance Taylor <ian@cygnus.com>
414
415 * gencode.c (build_mips16_operands): Correct computation of base
416 address for extended PC relative instruction.
417
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418start-sanitize-r5900
419Fri Feb 7 11:12:44 1997 Gavin Koch <gavin@cygnus.com>
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420
421 * Makefile.in, configure, configure.in, gencode.c,
422 interp.c, support.h: add r5900.
423
276c2d7d 424end-sanitize-r5900
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425Thu Feb 6 17:16:15 1997 Ian Lance Taylor <ian@cygnus.com>
426
427 * interp.c (mips16_entry): Add support for floating point cases.
428 (SignalException): Pass floating point cases to mips16_entry.
429 (ValueFPR): Don't restrict fmt_single and fmt_word to even
430 registers.
431 (StoreFPR): Likewise. Also, don't clobber fpr + 1 for fmt_single
432 or fmt_word.
433 (COP_LW): Pass fmt_word rather than fmt_uninterpreted to StoreFPR,
434 and then set the state to fmt_uninterpreted.
435 (COP_SW): Temporarily set the state to fmt_word while calling
436 ValueFPR.
437
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438Tue Feb 4 16:48:25 1997 Ian Lance Taylor <ian@cygnus.com>
439
440 * gencode.c (build_instruction): The high order may be set in the
441 comparison flags at any ISA level, not just ISA 4.
442
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443Tue Feb 4 13:33:30 1997 Doug Evans <dje@canuck.cygnus.com>
444
445 * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
446 COMMON_{PRE,POST}_CONFIG_FRAG instead.
447 * configure.in: sinclude ../common/aclocal.m4.
448 * configure: Regenerated.
449
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450Fri Jan 31 11:11:45 1997 Ian Lance Taylor <ian@cygnus.com>
451
452 * configure: Rebuild after change to aclocal.m4.
453
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454Thu Jan 23 11:46:23 1997 Stu Grossman (grossman@critters.cygnus.com)
455
456 * configure configure.in Makefile.in: Update to new configure
457 scheme which is more compatible with WinGDB builds.
458 * configure.in: Improve comment on how to run autoconf.
459 * configure: Re-run autoconf to get new ../common/aclocal.m4.
460 * Makefile.in: Use autoconf substitution to install common
461 makefile fragment.
462
463Wed Jan 8 12:39:03 1997 Jim Wilson <wilson@cygnus.com>
464
465 * gencode.c (build_instruction): Use BigEndianCPU instead of
466 ByteSwapMem.
467
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468Thu Jan 02 22:23:04 1997 Mark Alexander <marka@cygnus.com>
469
470 * interp.c (sim_monitor): Make output to stdout visible in
471 wingdb's I/O log window.
472
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473Tue Dec 31 07:04:00 1996 Mark Alexander <marka@cygnus.com>
474
475 * support.h: Undo previous change to SIGTRAP
476 and SIGQUIT values.
477
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478Mon Dec 30 17:36:06 1996 Ian Lance Taylor <ian@cygnus.com>
479
480 * interp.c (store_word, load_word): New static functions.
481 (mips16_entry): New static function.
482 (SignalException): Look for mips16 entry and exit instructions.
483 (simulate): Use the correct index when setting fpr_state after
484 doing a pending move.
485
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486Sun Dec 29 09:37:18 1996 Mark Alexander <marka@cygnus.com>
487
488 * interp.c: Fix byte-swapping code throughout to work on
489 both little- and big-endian hosts.
490
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491Sun Dec 29 09:18:32 1996 Mark Alexander <marka@cygnus.com>
492
493 * support.h: Make definitions of SIGTRAP and SIGQUIT consistent
494 with gdb/config/i386/xm-windows.h.
495
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496Fri Dec 27 22:48:51 1996 Mark Alexander <marka@cygnus.com>
497
498 * gencode.c (build_instruction): Work around MSVC++ code gen bug
499 that messes up arithmetic shifts.
500
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501Fri Dec 20 11:04:05 1996 Stu Grossman (grossman@critters.cygnus.com)
502
503 * support.h: Use _WIN32 instead of __WIN32__. Also add defs for
504 SIGTRAP and SIGQUIT for _WIN32.
505
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506Thu Dec 19 14:07:27 1996 Ian Lance Taylor <ian@cygnus.com>
507
508 * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
509 force a 64 bit multiplication.
510 (build_instruction) [OR]: In mips16 mode, don't do anything if the
511 destination register is 0, since that is the default mips16 nop
512 instruction.
513
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514Mon Dec 16 14:59:38 1996 Ian Lance Taylor <ian@cygnus.com>
515
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516 * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
517 (build_endian_shift): Don't check proc64.
518 (build_instruction): Always set memval to uword64. Cast op2 to
519 uword64 when shifting it left in memory instructions. Always use
520 the same code for stores--don't special case proc64.
521
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522 * gencode.c (build_mips16_operands): Fix base PC value for PC
523 relative operands.
524 (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
525 jal instruction.
526 * interp.c (simJALDELAYSLOT): Define.
527 (JALDELAYSLOT): Define.
528 (INDELAYSLOT, INJALDELAYSLOT): Define.
529 (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
530
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531Tue Dec 24 22:11:20 1996 Angela Marie Thomas (angela@cygnus.com)
532
533 * interp.c (sim_open): add flush_cache as a PMON routine
534 (sim_monitor): handle flush_cache by ignoring it
535
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536Wed Dec 11 13:53:51 1996 Jim Wilson <wilson@cygnus.com>
537
538 * gencode.c (build_instruction): Use !ByteSwapMem instead of
539 BigEndianMem.
540 * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
541 (BigEndianMem): Rename to ByteSwapMem and change sense.
542 (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
543 BigEndianMem references to !ByteSwapMem.
544 (set_endianness): New function, with prototype.
545 (sim_open): Call set_endianness.
546 (sim_info): Use simBE instead of BigEndianMem.
547 (xfer_direct_word, xfer_direct_long, swap_direct_word,
548 swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
549 xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
550 ifdefs, keeping the prototype declaration.
551 (swap_word): Rewrite correctly.
552 (ColdReset): Delete references to CONFIG. Delete endianness related
553 code; moved to set_endianness.
554
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555Tue Dec 10 11:32:04 1996 Jim Wilson <wilson@cygnus.com>
556
557 * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
558 * interp.c (CHECKHILO): Define away.
559 (simSIGINT): New macro.
560 (membank_size): Increase from 1MB to 2MB.
561 (control_c): New function.
562 (sim_resume): Rename parameter signal to signal_number. Add local
563 variable prev. Call signal before and after simulate.
564 (sim_stop_reason): Add simSIGINT support.
565 (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
566 functions always.
567 (sim_warning): Delete call to SignalException. Do call printf_filtered
568 if logfh is NULL.
569 (AddressTranslation): Add #ifdef DEBUG around debugging message and
570 a call to sim_warning.
571
572Wed Nov 27 11:53:50 1996 Ian Lance Taylor <ian@cygnus.com>
573
574 * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
575 16 bit instructions.
576
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577Tue Nov 26 11:53:12 1996 Ian Lance Taylor <ian@cygnus.com>
578
579 Add support for mips16 (16 bit MIPS implementation):
580 * gencode.c (inst_type): Add mips16 instruction encoding types.
581 (GETDATASIZEINSN): Define.
582 (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv. Add
583 jalx. Add LEFT flag to mfhi and mflo. Add RIGHT flag to mthi and
584 mtlo.
585 (MIPS16_DECODE): New table, for mips16 instructions.
586 (bitmap_val): New static function.
587 (struct mips16_op): Define.
588 (mips16_op_table): New table, for mips16 operands.
589 (build_mips16_operands): New static function.
590 (process_instructions): If PC is odd, decode a mips16
591 instruction. Break out instruction handling into new
592 build_instruction function.
593 (build_instruction): New static function, broken out of
594 process_instructions. Check modifiers rather than flags for SHIFT
595 bit count and m[ft]{hi,lo} direction.
596 (usage): Pass program name to fprintf.
597 (main): Remove unused variable this_option_optind. Change
598 ``*loptarg++'' to ``loptarg++''.
599 (my_strtoul): Parenthesize && within ||.
350d33b8 600 * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
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601 (simulate): If PC is odd, fetch a 16 bit instruction, and
602 increment PC by 2 rather than 4.
603 * configure.in: Add case for mips16*-*-*.
604 * configure: Rebuild.
605
606Fri Nov 22 08:49:36 1996 Mark Alexander <marka@cygnus.com>
607
608 * interp.c: Allow -t to enable tracing in standalone simulator.
609 Fix garbage output in trace file and error messages.
610
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611Wed Nov 20 01:54:37 1996 Doug Evans <dje@canuck.cygnus.com>
612
613 * Makefile.in: Delete stuff moved to ../common/Make-common.in.
614 (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
615 * configure.in: Simplify using macros in ../common/aclocal.m4.
616 * configure: Regenerated.
617 * tconfig.in: New file.
618
619Tue Nov 12 13:34:00 1996 Dawn Perchik <dawn@cygnus.com>
620
621 * interp.c: Fix bugs in 64-bit port.
622 Use ansi function declarations for msvc compiler.
623 Initialize and test file pointer in trace code.
624 Prevent duplicate definition of LAST_EMED_REGNUM.
625
626Tue Oct 15 11:07:06 1996 Mark Alexander <marka@cygnus.com>
627
628 * interp.c (xfer_big_long): Prevent unwanted sign extension.
629
630Thu Sep 26 17:35:00 1996 James G. Smith <jsmith@cygnus.co.uk>
631
632 * interp.c (SignalException): Check for explicit terminating
633 breakpoint value.
634 * gencode.c: Pass instruction value through SignalException()
635 calls for Trap, Breakpoint and Syscall.
636
637Thu Sep 26 11:35:17 1996 James G. Smith <jsmith@cygnus.co.uk>
638
639 * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
640 only used on those hosts that provide it.
641 * configure.in: Add sqrt() to list of functions to be checked for.
642 * config.in: Re-generated.
643 * configure: Re-generated.
644
645Fri Sep 20 15:47:12 1996 Ian Lance Taylor <ian@cygnus.com>
646
647 * gencode.c (process_instructions): Call build_endian_shift when
648 expanding STORE RIGHT, to fix swr.
649 * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
650 clear the high bits.
651 * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
652 Fix float to int conversions to produce signed values.
653
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654Thu Sep 19 15:34:17 1996 Ian Lance Taylor <ian@cygnus.com>
655
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656 * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
657 (process_instructions): Correct handling of nor instruction.
658 Correct shift count for 32 bit shift instructions. Correct sign
659 extension for arithmetic shifts to not shift the number of bits in
660 the type. Fix 64 bit multiply high word calculation. Fix 32 bit
661 unsigned multiply. Fix ldxc1 and friends to use coprocessor 1.
662 Fix madd.
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663 * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
664 It's OK to have a mult follow a mult. What's not OK is to have a
665 mult follow an mfhi.
458e1f58 666 (Convert): Comment out incorrect rounding code.
cc5201d7 667
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668Mon Sep 16 11:38:16 1996 James G. Smith <jsmith@cygnus.co.uk>
669
670 * interp.c (sim_monitor): Improved monitor printf
671 simulation. Tidied up simulator warnings, and added "--log" option
672 for directing warning message output.
673 * gencode.c: Use sim_warning() rather than WARNING macro.
674
675Thu Aug 22 15:03:12 1996 Ian Lance Taylor <ian@cygnus.com>
676
677 * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
678 getopt1.o, rather than on gencode.c. Link objects together.
679 Don't link against -liberty.
680 (gencode.o, getopt.o, getopt1.o): New targets.
681 * gencode.c: Include <ctype.h> and "ansidecl.h".
682 (AND): Undefine after including "ansidecl.h".
683 (ULONG_MAX): Define if not defined.
684 (OP_*): Don't define macros; now defined in opcode/mips.h.
685 (main): Call my_strtoul rather than strtoul.
686 (my_strtoul): New static function.
687
688Wed Jul 17 18:12:38 1996 Stu Grossman (grossman@critters.cygnus.com)
689
690 * gencode.c (process_instructions): Generate word64 and uword64
691 instead of `long long' and `unsigned long long' data types.
692 * interp.c: #include sysdep.h to get signals, and define default
693 for SIGBUS.
694 * (Convert): Work around for Visual-C++ compiler bug with type
695 conversion.
696 * support.h: Make things compile under Visual-C++ by using
697 __int64 instead of `long long'. Change many refs to long long
698 into word64/uword64 typedefs.
699
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700Wed Jun 26 12:24:55 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
701
702 * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
703 INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
704 (docdir): Removed.
705 * configure.in (AC_PREREQ): autoconf 2.5 or higher.
706 (AC_PROG_INSTALL): Added.
707 (AC_PROG_CC): Moved to before configure.host call.
708 * configure: Rebuilt.
709
710Wed Jun 5 08:28:13 1996 James G. Smith <jsmith@cygnus.co.uk>
711
712 * configure.in: Define @SIMCONF@ depending on mips target.
713 * configure: Rebuild.
714 * Makefile.in (run): Add @SIMCONF@ to control simulator
715 construction.
716 * gencode.c: Change LOADDRMASK to 64bit memory model only.
717 * interp.c: Remove some debugging, provide more detailed error
718 messages, update memory accesses to use LOADDRMASK.
719
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720Mon Jun 3 11:55:03 1996 Ian Lance Taylor <ian@cygnus.com>
721
722 * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
723 AC_CHECK_LIB, and AC_CHECK_FUNCS. Change AC_OUTPUT to set
724 stamp-h.
725 * configure: Rebuild.
726 * config.in: New file, generated by autoheader.
727 * interp.c: Include "config.h". Include <stdlib.h>, <string.h>,
728 and <strings.h> if they exist. Replace #ifdef sun with #ifdef
729 HAVE_ANINT and HAVE_AINT, as appropriate.
730 * Makefile.in (run): Use @LIBS@ rather than -lm.
731 (interp.o): Depend upon config.h.
732 (Makefile): Just rebuild Makefile.
733 (clean): Remove stamp-h.
734 (mostlyclean): Make the same as clean, not as distclean.
735 (config.h, stamp-h): New targets.
736
737Fri May 10 00:41:17 1996 James G. Smith <jsmith@cygnus.co.uk>
738
739 * interp.c (ColdReset): Fix boolean test. Make all simulator
740 globals static.
741
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742Wed May 8 15:12:58 1996 James G. Smith <jsmith@cygnus.co.uk>
743
744 * interp.c (xfer_direct_word, xfer_direct_long,
745 swap_direct_word, swap_direct_long, xfer_big_word,
746 xfer_big_long, xfer_little_word, xfer_little_long,
747 swap_word,swap_long): Added.
748 * interp.c (ColdReset): Provide function indirection to
749 host<->simulated_target transfer routines.
750 * interp.c (sim_store_register, sim_fetch_register): Updated to
751 make use of indirected transfer routines.
752
753Fri Apr 19 15:48:24 1996 James G. Smith <jsmith@cygnus.co.uk>
754
755 * gencode.c (process_instructions): Ensure FP ABS instruction
756 recognised.
757 * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
758 system call support.
759
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760Wed Apr 10 09:51:38 1996 James G. Smith <jsmith@cygnus.co.uk>
761
762 * interp.c (sim_do_command): Complain if callback structure not
763 initialised.
764
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765Thu Mar 28 13:50:51 1996 James G. Smith <jsmith@cygnus.co.uk>
766
767 * interp.c (Convert): Provide round-to-nearest and round-to-zero
768 support for Sun hosts.
769 * Makefile.in (gencode): Ensure the host compiler and libraries
770 used for cross-hosted build.
771
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772Wed Mar 27 14:42:12 1996 James G. Smith <jsmith@cygnus.co.uk>
773
774 * interp.c, gencode.c: Some more (TODO) tidying.
775
776Thu Mar 7 11:19:33 1996 James G. Smith <jsmith@cygnus.co.uk>
777
778 * gencode.c, interp.c: Replaced explicit long long references with
779 WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
780 * support.h (SET64LO, SET64HI): Macros added.
781
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782Wed Feb 21 12:16:21 1996 Ian Lance Taylor <ian@cygnus.com>
783
784 * configure: Regenerate with autoconf 2.7.
785
786Tue Jan 30 08:48:18 1996 Fred Fish <fnf@cygnus.com>
787
788 * interp.c (LoadMemory): Enclose text following #endif in /* */.
789 * support.h: Remove superfluous "1" from #if.
790 * support.h (CHECKSIM): Remove stray 'a' at end of line.
791
792Mon Dec 4 11:44:40 1995 Jamie Smith <jsmith@cygnus.com>
793
794 * interp.c (StoreFPR): Control UndefinedResult() call on
795 WARN_RESULT manifest.
796
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797Fri Dec 1 16:37:19 1995 James G. Smith <jsmith@cygnus.co.uk>
798
799 * gencode.c: Tidied instruction decoding, and added FP instruction
800 support.
801
802 * interp.c: Added dineroIII, and BSD profiling support. Also
803 run-time FP handling.
804
805Sun Oct 22 00:57:18 1995 James G. Smith <jsmith@pasanda.cygnus.co.uk>
806
807 * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
808 gencode.c, interp.c, support.h: created.
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