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
|
2021-04-02 Mike Frysinger <vapier@gentoo.org>
* aclocal.m4, configure: Regenerate.
2021-02-28 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2021-02-21 Mike Frysinger <vapier@gentoo.org>
* configure.ac (AC_CONFIG_MACRO_DIRS): Replace common with m4.
* aclocal.m4, configure: Regenerate.
2021-02-13 Mike Frysinger <vapier@gentoo.org>
* configure.ac: Replace sinclude with AC_CONFIG_MACRO_DIRS.
* aclocal.m4, configure: Regenerate.
2021-02-06 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2021-01-11 Mike Frysinger <vapier@gentoo.org>
* config.in, configure: Regenerate.
2021-01-09 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2021-01-08 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2021-01-04 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2020-02-06 Carlo Bramini <carlo_bramini@users.sourceforge.net>
PR sim/25318
* simulator.c (blr): Read destination register before calling
aarch64_save_LR.
2019-03-28 Andrew Burgess <andrew.burgess@embecosm.com>
* cpustate.c: Add 'libiberty.h' include.
* interp.c: Add 'sim-assert.h' include.
2017-09-06 John Baldwin <jhb@FreeBSD.org>
* configure: Regenerate.
2017-04-22 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (vec_load): Add M argument. Rewrite to iterate over
registers based on structure size.
(LD4, LD3, LD2, LD1_2, LD1_3, LD1_4): Pass new arg to vec_load.
(LD1_1): Replace with call to vec_load.
(vec_store): Add new M argument. Rewrite to iterate over registers
based on structure size.
(ST4, ST3, ST2, ST1_2, ST1_3, ST1_4): Pass new arg to vec_store.
(ST1_1): Replace with call to vec_store.
2017-04-08 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_FCVTL): New.
(do_vec_op1): Call do_vec_FCVTL.
* simulator.c (do_scalar_FCMGE_zero, do_scalar_FCMLE_zero,
do_scalar_FCMGT_zero, do_scalar_FCMEQ_zero, do_scalar_FCMLT_zero): New.
(do_scalar_vec): Add calls to new functions.
2017-03-25 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (set_flags_for_add32): Cast result to uint32_t in carry
flag check.
2017-03-03 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (mul64hi): Shift carry left by 32.
(smulh): Change signum to negate. If negate, invert result, and add
carry bit if low part of multiply result is zero.
2017-02-25 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_SMOV_into_scalar): New.
(do_vec_UMOV_into_scalar): Renamed from do_vec_MOV_into_scalar.
Rewritten.
(do_vec_UMOV): Merged into do_vec_UMOV_into_scalar and deleted.
(do_vec_op1): Move do_vec_TRN call and do_vec_UZP call. Add
do_vec_SMOV_into_scalar call. Delete do_vec_MOV_into_scalar and
do_vec_UMOV calls. Add do_vec_UMOV_into_scalar call.
* simulator.c (popcount): New.
(do_vec_CNT): New.
(do_vec_op1): Add do_vec_CNT call.
2017-02-19 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_ADDV): Mov val declaration inside each case,
with type set to input type size.
(do_vec_xtl): Change bias from 3 to 4 for byte case.
2017-02-14 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_MLA): Rewrite switch body.
* simulator.c (do_vec_bit): Change loop limits from 16 and 8 to 4 and
2. Move test_false if inside loop. Fix logic for computing result
stored to vd.
* simulator.c: (LDn_STn_SINGLE_LANE_AND_SIZE): New.
(do_vec_LDn_single, do_vec_STn_single): New.
(do_vec_LDnR): Add and set new nregs var. Replace switch on nregs with
loop over nregs using new var n. Add n times size to address in loop.
Add n to vd in loop.
(do_vec_load_store): Add comment for instruction bit 24. New var
single to hold instruction bit 24. Add new code to use single. Move
ldnr support inside single if statements. Fix ldnr register counts
inside post if statement. Change HALT_NYI calls to HALT_UNALLOC.
2017-01-23 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_compare): Add case 0x23 for CMTST.
2017-01-17 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_ADDV): Call aarch64_set_vec_u64 instead of
aarch64_set_reg_u64. In case 2, call HALT_UNALLOC if not full. In
case 3, call HALT_UNALLOC unconditionally.
(do_vec_XTN): Delete shifts. In case 2, change index from i + 4 to
i + 2. Delete if on bias, change index to i + bias * X.
2017-01-09 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (do_vec_UZP): Rewrite.
2017-01-04 Jim Wilson <jim.wilson@linaro.org>
* cpustate.c: Include math.h.
(aarch64_set_FP_float): Use signbit to check for signed zero.
(aarch64_set_FP_double): Likewise.
* simulator.c (do_vec_MOV_immediate, case 0x8): Add missing break.
(do_vec_mul): In all DO_VEC_WIDENING_MUL calls, make second and fourth
args same size as third arg.
(fmaxnm): Use isnan instead of fpclassify.
(fminnm, dmaxnm, dminnm): Likewise.
(do_vec_MLS): Reverse order of subtraction operands.
(dexSimpleFPCondSelect): Call aarch64_get_FP_double or
aarch64_get_FP_float to get source register contents.
(UINT_MIN, ULONG_MIN, FLOAT_UINT_MAX, FLOAT_UINT_MIN,
DOUBLE_UINT_MAX, DOUBLE_UINT_MIN, FLOAT_ULONG_MAX, FLOAT_ULONG_MIN,
DOUBLE_ULONG_MAX, DOUBLE_ULONG_MIN): New.
(do_fcvtzu): Use ULONG instead of LONG, and UINT instead of INT in
raise_exception calls.
2016-12-21 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (set_flags_for_float_compare): Add code to handle Inf.
Add comment to document NaN issue.
(set_flags_for_double_compare): Likewise.
2016-12-13 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (NEG, POS): Move before set_flags_for_add64.
(set_flags_for_add64): Replace with a modified copy of
set_flags_for_sub64.
2016-12-03 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (tbnz, tbz): Cast 1 to uint64_t before shifting.
(dexTestBranchImmediate): Shift high bit of pos by 5 not 4.
2016-12-01 Jim Wilson <jim.wilson@linaro.org>
* simulator.c (fsturs): Switch use of rn and st variables.
(fsturd, fsturq): Likewise
2016-08-15 Mike Frysinger <vapier@gentoo.org>
* interp.c: Include bfd.h.
(symcount, symtab, aarch64_get_sym_value): Delete.
(remove_useless_symbols): Change count type to long.
(aarch64_get_func): Add SIM_DESC to arg list. Add symcount
and symtab local variables.
(sim_create_inferior): Delete storage. Replace symbol code
with a call to trace_load_symbols.
* memory.c: Delete bfd.h, elf/internal.h, and elf/common.h
includes.
(aarch64_get_heap_start): Change aarch64_get_sym_value to
trace_sym_value.
* memory.h: Delete bfd.h include.
(mem_add_blk): Delete unused prototype.
* simulator.c (bl, blr): Pass SIM_DESC to aarch64_get_func.
* simulator.c (aarch64_get_func): Add SIM_DESC to arg list.
(aarch64_get_sym_value): Delete.
2016-08-12 Nick Clifton <nickc@redhat.com>
* simulator.c (aarch64_step): Revert pervious delta.
(aarch64_run): Call sim_events_tick after each
instruction is simulated, and if necessary call
sim_events_process.
* simulator.h: Revert previous delta.
2016-08-11 Nick Clifton <nickc@redhat.com>
* interp.c (sim_create_inferior): Allow for being called with a
NULL abfd parameter. If a bfd is provided, initialise the sim
with that start address.
* simulator.c (HALT_NYI): Just print out the numeric value of the
instruction when not tracing.
(aarch64_step): Change from static to global.
* simulator.h: Add a prototype for aarch64_step().
2016-07-27 Alan Modra <amodra@gmail.com>
* memory.c: Don't include libbfd.h.
2016-07-21 Nick Clifton <nickc@redhat.com>
* simulator.c (fsqrts): Use sqrtf rather than sqrt.
2016-06-30 Jim Wilson <jim.wilson@linaro.org>
* cpustate.h: Include config.h.
(union GRegisterValue): Add WORDS_BIGENDIAN check. For big endian code
use anonymous structs to align members.
* simulator.c (aarch64_step): Use sim_core_read_buffer and
endian_le2h_4 to read instruction from pc.
2016-05-06 Nick Clifton <nickc@redhat.com>
* simulator.c (do_FMLA_by_element): New function.
(do_vec_op2): Call it.
2016-04-27 Nick Clifton <nickc@redhat.com>
* simulator.c: Add TRACE_DECODE statements to all emulation
functions.
2016-03-30 Nick Clifton <nickc@redhat.com>
* cpustate.c (aarch64_set_reg_s32): New function.
(aarch64_set_reg_u32): New function.
(aarch64_get_FP_half): Place half precision value into the correct
slot of the union.
(aarch64_set_FP_half): Likewise.
* cpustate.h: Add prototypes for aarch64_set_reg_s32 and
aarch64_set_reg_u32.
* memory.c (FETCH_FUNC): Cast the read value to the access type
before converting it to the return type. Rename to FETCH_FUNC64.
(FETCH_FUNC32): New macro. Duplicates FETCH_FUNC64 but for 32-bit
accesses. Use for 32-bit memory access functions.
* simulator.c (ldrsb_wb): Use sign extension not zero extension.
(ldrb_scale_ext, ldrsh32_abs, ldrsh32_wb): Likewise.
(ldrsh32_scale_ext, ldrsh_abs, ldrsh64_wb): Likewise.
(ldrsh_scale_ext, ldrsw_abs): Likewise.
(ldrh32_abs): Store 32 bit value not 64-bits.
(ldrh32_wb, ldrh32_scale_ext): Likewise.
(do_vec_MOV_immediate): Fix computation of val.
(do_vec_MVNI): Likewise.
(DO_VEC_WIDENING_MUL): New macro.
(do_vec_mull): Use new macro.
(do_vec_mul): Use new macro.
(do_vec_MLA): Read values before writing.
(do_vec_xtl): Likewise.
(do_vec_SSHL): Select correct shift value.
(do_vec_USHL): Likewise.
(do_scalar_UCVTF): New function.
(do_scalar_vec): Call new function.
(store_pair_u64): Treat reads of SP as reads of XZR.
2016-03-29 Nick Clifton <nickc@redhat.com>
* cpustate.c: Remove space after asterisk in function parameters.
* decode.h (greg): Delete unused function.
(vreg, shift, extension, scaling, writeback, condcode): Likewise.
* simulator.c: Use INSTR macro in more places.
(HALT_NYI): Use sim_io_eprintf in place of fprintf.
Remove extraneous whitespace.
2016-03-23 Nick Clifton <nickc@redhat.com>
* cpustate.c (aarch64_get_FP_half): New function. Read a vector
register as a half precision floating point number.
(aarch64_set_FP_half): New function. Similar, but for setting
a half precision register.
(aarch64_get_thread_id): New function. Returns the value of the
CPU's TPIDR register.
(aarch64_get_FPCR): New function. Returns the value of the CPU's
floating point control register.
(aarch64_set_FPCR): New function. Set the value of the CPU's FPCR
register.
* cpustate.h: Add prototypes for new functions.
* sim-main.h (struct _sim_cpu): Add FPCR and tpidr fields.
* memory.c: Use unaligned core access functions for all memory
reads and writes.
* simulator.c (HALT_NYI): Generate an error message if tracing
will not tell the user why the simulator is halting.
(HALT_UNREACHABLE): Delete. Delete (unneeded) uses of the macro.
(INSTR): New time-saver macro.
(fldrb_abs): New function. Loads an 8-bit value using a scaled
offset.
(fldrh_abs): New function. Likewise for 16-bit values.
(do_vec_SSHL): Allow for negative shift values.
(do_vec_USHL): Likewise.
(do_vec_SHL): Correct computation of shift amount.
(do_vec_SSHR_USHR): Correct decision of signed vs unsigned
shifts and computation of shift value.
(clz): New function. Counts leading zero bits.
(do_vec_CLZ): New function. Implements CLZ (vector).
(do_vec_MOV_element): Call do_vec_CLZ.
(dexSimpleFPCondCompare): Implement.
(do_FCVT_half_to_single): New function. Implements one of the
FCVT operations.
(do_FCVT_half_to_double): New function. Likewise.
(do_FCVT_single_to_half): New function. Likewise.
(do_FCVT_double_to_half): New function. Likewise.
(dexSimpleFPDataProc1Source): Call new FCVT functions.
(do_scalar_SHL): Handle negative shifts.
(do_scalar_shift): Handle SSHR.
(do_scalar_USHL): New function.
(do_double_add): Simplify to just performing a double precision
add operation. Move remaining code into...
(do_scalar_vec): ... New function.
(dexLoadUnsignedImmediate): Call new fldrb_abs and fldrh_abs
functions.
(system_get): Add support for TPIDR, CTR, FPCR, FPSR and CPSR
registers.
(system_set): New function.
(do_MSR_immediate): New function. Stub for now.
(do_MSR_reg): New function. Likewise. Partially implements MSR
instruction.
(do_SYS): New function. Stub for now,
(dexSystem): Call new functions.
2016-03-18 Nick Clifton <nickc@redhat.com>
* cpustate.c: Remove spurious spaces from TRACE strings.
Print hex equivalents of floats and doubles.
Check element number against array size when accessing vector
registers.
(GET_VEC_ELEMENT): Fix off by one error checking for an invalid
element index.
(SET_VEC_ELEMENT): Likewise.
(GET_VEC_ELEMENT): And fix thinko using macro arguments.
* memory.c: Trace memory reads when --trace-memory is enabled.
Remove float and double load and store functions.
* memory.h (aarch64_get_mem_float): Delete prototype.
(aarch64_get_mem_double): Likewise.
(aarch64_set_mem_float): Likewise.
(aarch64_set_mem_double): Likewise.
* simulator (IS_SET): Always return either 0 or 1.
(IS_CLEAR): Likewise.
(fldrs_pcrel): Load and store floats using 32-bit memory accesses
and doubles using 64-bit memory accesses.
(fldrd_pcrel, fldrs_wb, fldrs_abs, fldrs_scale_ext): Likewise.
(fldrd_wb, fldrd_abs, fsturs, fsturd, fldurs, fldurd): Likewise.
(fstrs_abs, fstrs_wb, fstrs_scale_ext, fstrd_abs): Likewise.
(fstrd_wb, fstrd_scale_ext, store_pair_float): Likewise.
(store_pair_double, load_pair_float, load_pair_double): Likewise.
(do_vec_MUL_by_element): New function.
(do_vec_op2): Call do_vec_MUL_by_element.
(do_scalar_NEG): New function.
(do_double_add): Call do_scalar_NEG.
2016-03-03 Nick Clifton <nickc@redhat.com>
* simulator.c (set_flags_for_sub32): Correct type of signbit.
(CondCompare): Swap interpretation of bit 30.
(DO_ADDP): Delete macro.
(do_vec_ADDP): Copy source registers before starting to update
destination register.
(do_vec_FADDP): Likewise.
(do_vec_load_store): Fix computation of sizeof_operation.
(rbit64): Fix type of constant.
(aarch64_step): When displaying insn value, display all 32 bits.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* config.in, configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure.ac (SIM_AC_OPTION_ENVIRONMENT): Delete call.
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure.ac (SIM_AC_OPTION_INLINE): Delete call.
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-10 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-09 Mike Frysinger <vapier@gentoo.org>
* config.in, configure: Regenerate.
2016-01-06 Mike Frysinger <vapier@gentoo.org>
* interp.c (sim_create_inferior): Mark argv and env const.
(sim_open): Mark argv const.
2016-01-05 Mike Frysinger <vapier@gentoo.org>
* interp.c: Delete dis-asm.h include.
(info, opbuf, op_printf, aarch64_print_insn, sim_dis_read): Delete.
(sim_create_inferior): Delete disassemble init logic.
(OPTION_DISAS, aarch64_option_handler, aarch64_options): Delete.
(sim_open): Delete sim_add_option_table call.
* memory.c (mem_error): Delete disas check.
* simulator.c: Delete dis-asm.h include.
(disas): Delete.
(HALT_UNALLOC): Replace disassembly logic with TRACE_DISASM.
(HALT_NYI): Likewise.
(handle_halt): Delete disas call.
(aarch64_step): Replace disas logic with TRACE_DISASM.
* simulator.h: Delete dis-asm.h include.
(aarch64_print_insn): Delete.
2016-01-04 Mike Frysinger <vapier@gentoo.org>
* simulator.c (MAX, MIN): Delete.
(do_vec_maxv): Change MAX to max and MIN to min.
(do_vec_fminmaxV): Likewise.
2016-01-04 Tristan Gingold <gingold@adacore.com>
* simulator.c: Remove syscall.h include.
2016-01-04 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2016-01-03 Mike Frysinger <vapier@gentoo.org>
* configure.ac (SIM_AC_OPTION_HOSTENDIAN): Delete.
* configure: Regenerate.
2016-01-02 Mike Frysinger <vapier@gentoo.org>
* configure: Regenerate.
2015-12-27 Mike Frysinger <vapier@gentoo.org>
* interp.c (sim_dis_read): Change private_data to application_data.
(sim_create_inferior): Likewise.
2015-12-27 Mike Frysinger <vapier@gentoo.org>
* Makefile.in (SIM_OBJS): Delete sim-hload.o.
2015-12-26 Mike Frysinger <vapier@gentoo.org>
* config.in, configure: Regenerate.
2015-12-26 Mike Frysinger <vapier@gentoo.org>
* interp.c (sim_create_inferior): Update comment and argv check.
2015-12-14 Nick Clifton <nickc@redhat.com>
* simulator.c (system_get): New function. Provides read
access to the dczid system register.
(do_mrs): New function - implements the MRS instruction.
(dexSystem): Call do_mrs for the MRS instruction. Halt on
unimplemented system instructions.
2015-11-24 Nick Clifton <nickc@redhat.com>
* configure.ac: New configure template.
* aclocal.m4: Generate.
* config.in: Generate.
* configure: Generate.
* cpustate.c: New file - functions for accessing AArch64 registers.
* cpustate.h: New header.
* decode.h: New header.
* interp.c: New file - interface between GDB and simulator.
* Makefile.in: New makefile template.
* memory.c: New file - functions for simulating aarch64 memory
accesses.
* memory.h: New header.
* sim-main.h: New header.
* simulator.c: New file - aarch64 simulator functions.
* simulator.h: New header.
|
