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
|
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.
|
