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All registers are set to 0 on reset (Robert Reif)
[qemu/qemu_0_9_1_stable.git] / tests / test-i386.c
blob1cc34e3dc757249d21c58c6e4ddd0071885abec8
1 /*
2 * x86 CPU test
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #define _GNU_SOURCE
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <string.h>
24 #include <inttypes.h>
25 #include <math.h>
26 #include <signal.h>
27 #include <setjmp.h>
28 #include <errno.h>
29 #include <sys/ucontext.h>
30 #include <sys/mman.h>
31
32 #if !defined(__x86_64__)
33 #define TEST_VM86
34 #define TEST_SEGS
35 #endif
36 //#define LINUX_VM86_IOPL_FIX
37 //#define TEST_P4_FLAGS
38 #if defined(__x86_64__)
39 #define TEST_SSE
40 #define TEST_CMOV 1
41 #define TEST_FCOMI 1
42 #else
43 //#define TEST_SSE
44 #define TEST_CMOV 0
45 #define TEST_FCOMI 0
46 #endif
47
48 #if defined(__x86_64__)
49 #define FMT64X "%016lx"
50 #define FMTLX "%016lx"
51 #define X86_64_ONLY(x) x
52 #else
53 #define FMT64X "%016" PRIx64
54 #define FMTLX "%08lx"
55 #define X86_64_ONLY(x)
56 #endif
57
58 #ifdef TEST_VM86
59 #include <asm/vm86.h>
60 #endif
61
62 #define xglue(x, y) x ## y
63 #define glue(x, y) xglue(x, y)
64 #define stringify(s) tostring(s)
65 #define tostring(s) #s
66
67 #define CC_C 0x0001
68 #define CC_P 0x0004
69 #define CC_A 0x0010
70 #define CC_Z 0x0040
71 #define CC_S 0x0080
72 #define CC_O 0x0800
73
74 #define __init_call __attribute__ ((unused,__section__ ("initcall")))
75
76 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
77
78 #if defined(__x86_64__)
79 static inline long i2l(long v)
80 {
81 return v | ((v ^ 0xabcd) << 32);
82 }
83 #else
84 static inline long i2l(long v)
85 {
86 return v;
87 }
88 #endif
89
90 #define OP add
91 #include "test-i386.h"
92
93 #define OP sub
94 #include "test-i386.h"
95
96 #define OP xor
97 #include "test-i386.h"
98
99 #define OP and
100 #include "test-i386.h"
101
102 #define OP or
103 #include "test-i386.h"
104
105 #define OP cmp
106 #include "test-i386.h"
107
108 #define OP adc
109 #define OP_CC
110 #include "test-i386.h"
111
112 #define OP sbb
113 #define OP_CC
114 #include "test-i386.h"
115
116 #define OP inc
117 #define OP_CC
118 #define OP1
119 #include "test-i386.h"
120
121 #define OP dec
122 #define OP_CC
123 #define OP1
124 #include "test-i386.h"
125
126 #define OP neg
127 #define OP_CC
128 #define OP1
129 #include "test-i386.h"
130
131 #define OP not
132 #define OP_CC
133 #define OP1
134 #include "test-i386.h"
135
136 #undef CC_MASK
137 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O)
138
139 #define OP shl
140 #include "test-i386-shift.h"
141
142 #define OP shr
143 #include "test-i386-shift.h"
144
145 #define OP sar
146 #include "test-i386-shift.h"
147
148 #define OP rol
149 #include "test-i386-shift.h"
150
151 #define OP ror
152 #include "test-i386-shift.h"
153
154 #define OP rcr
155 #define OP_CC
156 #include "test-i386-shift.h"
157
158 #define OP rcl
159 #define OP_CC
160 #include "test-i386-shift.h"
161
162 #define OP shld
163 #define OP_SHIFTD
164 #define OP_NOBYTE
165 #include "test-i386-shift.h"
166
167 #define OP shrd
168 #define OP_SHIFTD
169 #define OP_NOBYTE
170 #include "test-i386-shift.h"
171
172 /* XXX: should be more precise ? */
173 #undef CC_MASK
174 #define CC_MASK (CC_C)
175
176 #define OP bt
177 #define OP_NOBYTE
178 #include "test-i386-shift.h"
179
180 #define OP bts
181 #define OP_NOBYTE
182 #include "test-i386-shift.h"
183
184 #define OP btr
185 #define OP_NOBYTE
186 #include "test-i386-shift.h"
187
188 #define OP btc
189 #define OP_NOBYTE
190 #include "test-i386-shift.h"
191
192 /* lea test (modrm support) */
193 #define TEST_LEAQ(STR)\
194 {\
195 asm("lea " STR ", %0"\
196 : "=r" (res)\
197 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
198 printf("lea %s = " FMTLX "\n", STR, res);\
199 }
200
201 #define TEST_LEA(STR)\
202 {\
203 asm("lea " STR ", %0"\
204 : "=r" (res)\
205 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
206 printf("lea %s = " FMTLX "\n", STR, res);\
207 }
208
209 #define TEST_LEA16(STR)\
210 {\
211 asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\
212 : "=wq" (res)\
213 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
214 printf("lea %s = %08lx\n", STR, res);\
215 }
216
217
218 void test_lea(void)
219 {
220 long eax, ebx, ecx, edx, esi, edi, res;
221 eax = i2l(0x0001);
222 ebx = i2l(0x0002);
223 ecx = i2l(0x0004);
224 edx = i2l(0x0008);
225 esi = i2l(0x0010);
226 edi = i2l(0x0020);
227
228 TEST_LEA("0x4000");
229
230 TEST_LEA("(%%eax)");
231 TEST_LEA("(%%ebx)");
232 TEST_LEA("(%%ecx)");
233 TEST_LEA("(%%edx)");
234 TEST_LEA("(%%esi)");
235 TEST_LEA("(%%edi)");
236
237 TEST_LEA("0x40(%%eax)");
238 TEST_LEA("0x40(%%ebx)");
239 TEST_LEA("0x40(%%ecx)");
240 TEST_LEA("0x40(%%edx)");
241 TEST_LEA("0x40(%%esi)");
242 TEST_LEA("0x40(%%edi)");
243
244 TEST_LEA("0x4000(%%eax)");
245 TEST_LEA("0x4000(%%ebx)");
246 TEST_LEA("0x4000(%%ecx)");
247 TEST_LEA("0x4000(%%edx)");
248 TEST_LEA("0x4000(%%esi)");
249 TEST_LEA("0x4000(%%edi)");
250
251 TEST_LEA("(%%eax, %%ecx)");
252 TEST_LEA("(%%ebx, %%edx)");
253 TEST_LEA("(%%ecx, %%ecx)");
254 TEST_LEA("(%%edx, %%ecx)");
255 TEST_LEA("(%%esi, %%ecx)");
256 TEST_LEA("(%%edi, %%ecx)");
257
258 TEST_LEA("0x40(%%eax, %%ecx)");
259 TEST_LEA("0x4000(%%ebx, %%edx)");
260
261 TEST_LEA("(%%ecx, %%ecx, 2)");
262 TEST_LEA("(%%edx, %%ecx, 4)");
263 TEST_LEA("(%%esi, %%ecx, 8)");
264
265 TEST_LEA("(,%%eax, 2)");
266 TEST_LEA("(,%%ebx, 4)");
267 TEST_LEA("(,%%ecx, 8)");
268
269 TEST_LEA("0x40(,%%eax, 2)");
270 TEST_LEA("0x40(,%%ebx, 4)");
271 TEST_LEA("0x40(,%%ecx, 8)");
272
273
274 TEST_LEA("-10(%%ecx, %%ecx, 2)");
275 TEST_LEA("-10(%%edx, %%ecx, 4)");
276 TEST_LEA("-10(%%esi, %%ecx, 8)");
277
278 TEST_LEA("0x4000(%%ecx, %%ecx, 2)");
279 TEST_LEA("0x4000(%%edx, %%ecx, 4)");
280 TEST_LEA("0x4000(%%esi, %%ecx, 8)");
281
282 #if defined(__x86_64__)
283 TEST_LEAQ("0x4000");
284 TEST_LEAQ("0x4000(%%rip)");
285
286 TEST_LEAQ("(%%rax)");
287 TEST_LEAQ("(%%rbx)");
288 TEST_LEAQ("(%%rcx)");
289 TEST_LEAQ("(%%rdx)");
290 TEST_LEAQ("(%%rsi)");
291 TEST_LEAQ("(%%rdi)");
292
293 TEST_LEAQ("0x40(%%rax)");
294 TEST_LEAQ("0x40(%%rbx)");
295 TEST_LEAQ("0x40(%%rcx)");
296 TEST_LEAQ("0x40(%%rdx)");
297 TEST_LEAQ("0x40(%%rsi)");
298 TEST_LEAQ("0x40(%%rdi)");
299
300 TEST_LEAQ("0x4000(%%rax)");
301 TEST_LEAQ("0x4000(%%rbx)");
302 TEST_LEAQ("0x4000(%%rcx)");
303 TEST_LEAQ("0x4000(%%rdx)");
304 TEST_LEAQ("0x4000(%%rsi)");
305 TEST_LEAQ("0x4000(%%rdi)");
306
307 TEST_LEAQ("(%%rax, %%rcx)");
308 TEST_LEAQ("(%%rbx, %%rdx)");
309 TEST_LEAQ("(%%rcx, %%rcx)");
310 TEST_LEAQ("(%%rdx, %%rcx)");
311 TEST_LEAQ("(%%rsi, %%rcx)");
312 TEST_LEAQ("(%%rdi, %%rcx)");
313
314 TEST_LEAQ("0x40(%%rax, %%rcx)");
315 TEST_LEAQ("0x4000(%%rbx, %%rdx)");
316
317 TEST_LEAQ("(%%rcx, %%rcx, 2)");
318 TEST_LEAQ("(%%rdx, %%rcx, 4)");
319 TEST_LEAQ("(%%rsi, %%rcx, 8)");
320
321 TEST_LEAQ("(,%%rax, 2)");
322 TEST_LEAQ("(,%%rbx, 4)");
323 TEST_LEAQ("(,%%rcx, 8)");
324
325 TEST_LEAQ("0x40(,%%rax, 2)");
326 TEST_LEAQ("0x40(,%%rbx, 4)");
327 TEST_LEAQ("0x40(,%%rcx, 8)");
328
329
330 TEST_LEAQ("-10(%%rcx, %%rcx, 2)");
331 TEST_LEAQ("-10(%%rdx, %%rcx, 4)");
332 TEST_LEAQ("-10(%%rsi, %%rcx, 8)");
333
334 TEST_LEAQ("0x4000(%%rcx, %%rcx, 2)");
335 TEST_LEAQ("0x4000(%%rdx, %%rcx, 4)");
336 TEST_LEAQ("0x4000(%%rsi, %%rcx, 8)");
337 #else
338 /* limited 16 bit addressing test */
339 TEST_LEA16("0x4000");
340 TEST_LEA16("(%%bx)");
341 TEST_LEA16("(%%si)");
342 TEST_LEA16("(%%di)");
343 TEST_LEA16("0x40(%%bx)");
344 TEST_LEA16("0x40(%%si)");
345 TEST_LEA16("0x40(%%di)");
346 TEST_LEA16("0x4000(%%bx)");
347 TEST_LEA16("0x4000(%%si)");
348 TEST_LEA16("(%%bx,%%si)");
349 TEST_LEA16("(%%bx,%%di)");
350 TEST_LEA16("0x40(%%bx,%%si)");
351 TEST_LEA16("0x40(%%bx,%%di)");
352 TEST_LEA16("0x4000(%%bx,%%si)");
353 TEST_LEA16("0x4000(%%bx,%%di)");
354 #endif
355 }
356
357 #define TEST_JCC(JCC, v1, v2)\
358 {\
359 int res;\
360 asm("movl $1, %0\n\t"\
361 "cmpl %2, %1\n\t"\
362 "j" JCC " 1f\n\t"\
363 "movl $0, %0\n\t"\
364 "1:\n\t"\
365 : "=r" (res)\
366 : "r" (v1), "r" (v2));\
367 printf("%-10s %d\n", "j" JCC, res);\
368 \
369 asm("movl $0, %0\n\t"\
370 "cmpl %2, %1\n\t"\
371 "set" JCC " %b0\n\t"\
372 : "=r" (res)\
373 : "r" (v1), "r" (v2));\
374 printf("%-10s %d\n", "set" JCC, res);\
375 if (TEST_CMOV) {\
376 long val = i2l(1);\
377 long res = i2l(0x12345678);\
378 X86_64_ONLY(\
379 asm("cmpl %2, %1\n\t"\
380 "cmov" JCC "q %3, %0\n\t"\
381 : "=r" (res)\
382 : "r" (v1), "r" (v2), "m" (val), "0" (res));\
383 printf("%-10s R=" FMTLX "\n", "cmov" JCC "q", res);)\
384 asm("cmpl %2, %1\n\t"\
385 "cmov" JCC "l %k3, %k0\n\t"\
386 : "=r" (res)\
387 : "r" (v1), "r" (v2), "m" (val), "0" (res));\
388 printf("%-10s R=" FMTLX "\n", "cmov" JCC "l", res);\
389 asm("cmpl %2, %1\n\t"\
390 "cmov" JCC "w %w3, %w0\n\t"\
391 : "=r" (res)\
392 : "r" (v1), "r" (v2), "r" (1), "0" (res));\
393 printf("%-10s R=" FMTLX "\n", "cmov" JCC "w", res);\
394 } \
395 }
396
397 /* various jump tests */
398 void test_jcc(void)
399 {
400 TEST_JCC("ne", 1, 1);
401 TEST_JCC("ne", 1, 0);
402
403 TEST_JCC("e", 1, 1);
404 TEST_JCC("e", 1, 0);
405
406 TEST_JCC("l", 1, 1);
407 TEST_JCC("l", 1, 0);
408 TEST_JCC("l", 1, -1);
409
410 TEST_JCC("le", 1, 1);
411 TEST_JCC("le", 1, 0);
412 TEST_JCC("le", 1, -1);
413
414 TEST_JCC("ge", 1, 1);
415 TEST_JCC("ge", 1, 0);
416 TEST_JCC("ge", -1, 1);
417
418 TEST_JCC("g", 1, 1);
419 TEST_JCC("g", 1, 0);
420 TEST_JCC("g", 1, -1);
421
422 TEST_JCC("b", 1, 1);
423 TEST_JCC("b", 1, 0);
424 TEST_JCC("b", 1, -1);
425
426 TEST_JCC("be", 1, 1);
427 TEST_JCC("be", 1, 0);
428 TEST_JCC("be", 1, -1);
429
430 TEST_JCC("ae", 1, 1);
431 TEST_JCC("ae", 1, 0);
432 TEST_JCC("ae", 1, -1);
433
434 TEST_JCC("a", 1, 1);
435 TEST_JCC("a", 1, 0);
436 TEST_JCC("a", 1, -1);
437
438
439 TEST_JCC("p", 1, 1);
440 TEST_JCC("p", 1, 0);
441
442 TEST_JCC("np", 1, 1);
443 TEST_JCC("np", 1, 0);
444
445 TEST_JCC("o", 0x7fffffff, 0);
446 TEST_JCC("o", 0x7fffffff, -1);
447
448 TEST_JCC("no", 0x7fffffff, 0);
449 TEST_JCC("no", 0x7fffffff, -1);
450
451 TEST_JCC("s", 0, 1);
452 TEST_JCC("s", 0, -1);
453 TEST_JCC("s", 0, 0);
454
455 TEST_JCC("ns", 0, 1);
456 TEST_JCC("ns", 0, -1);
457 TEST_JCC("ns", 0, 0);
458 }
459
460 #undef CC_MASK
461 #ifdef TEST_P4_FLAGS
462 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
463 #else
464 #define CC_MASK (CC_O | CC_C)
465 #endif
466
467 #define OP mul
468 #include "test-i386-muldiv.h"
469
470 #define OP imul
471 #include "test-i386-muldiv.h"
472
473 void test_imulw2(long op0, long op1)
474 {
475 long res, s1, s0, flags;
476 s0 = op0;
477 s1 = op1;
478 res = s0;
479 flags = 0;
480 asm volatile ("push %4\n\t"
481 "popf\n\t"
482 "imulw %w2, %w0\n\t"
483 "pushf\n\t"
484 "pop %1\n\t"
485 : "=q" (res), "=g" (flags)
486 : "q" (s1), "0" (res), "1" (flags));
487 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
488 "imulw", s0, s1, res, flags & CC_MASK);
489 }
490
491 void test_imull2(long op0, long op1)
492 {
493 long res, s1, s0, flags;
494 s0 = op0;
495 s1 = op1;
496 res = s0;
497 flags = 0;
498 asm volatile ("push %4\n\t"
499 "popf\n\t"
500 "imull %k2, %k0\n\t"
501 "pushf\n\t"
502 "pop %1\n\t"
503 : "=q" (res), "=g" (flags)
504 : "q" (s1), "0" (res), "1" (flags));
505 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
506 "imull", s0, s1, res, flags & CC_MASK);
507 }
508
509 #if defined(__x86_64__)
510 void test_imulq2(long op0, long op1)
511 {
512 long res, s1, s0, flags;
513 s0 = op0;
514 s1 = op1;
515 res = s0;
516 flags = 0;
517 asm volatile ("push %4\n\t"
518 "popf\n\t"
519 "imulq %2, %0\n\t"
520 "pushf\n\t"
521 "pop %1\n\t"
522 : "=q" (res), "=g" (flags)
523 : "q" (s1), "0" (res), "1" (flags));
524 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
525 "imulq", s0, s1, res, flags & CC_MASK);
526 }
527 #endif
528
529 #define TEST_IMUL_IM(size, rsize, op0, op1)\
530 {\
531 long res, flags, s1;\
532 flags = 0;\
533 res = 0;\
534 s1 = op1;\
535 asm volatile ("push %3\n\t"\
536 "popf\n\t"\
537 "imul" size " $" #op0 ", %" rsize "2, %" rsize "0\n\t" \
538 "pushf\n\t"\
539 "pop %1\n\t"\
540 : "=r" (res), "=g" (flags)\
541 : "r" (s1), "1" (flags), "0" (res));\
542 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",\
543 "imul" size " im", (long)op0, (long)op1, res, flags & CC_MASK);\
544 }
545
546
547 #undef CC_MASK
548 #define CC_MASK (0)
549
550 #define OP div
551 #include "test-i386-muldiv.h"
552
553 #define OP idiv
554 #include "test-i386-muldiv.h"
555
556 void test_mul(void)
557 {
558 test_imulb(0x1234561d, 4);
559 test_imulb(3, -4);
560 test_imulb(0x80, 0x80);
561 test_imulb(0x10, 0x10);
562
563 test_imulw(0, 0x1234001d, 45);
564 test_imulw(0, 23, -45);
565 test_imulw(0, 0x8000, 0x8000);
566 test_imulw(0, 0x100, 0x100);
567
568 test_imull(0, 0x1234001d, 45);
569 test_imull(0, 23, -45);
570 test_imull(0, 0x80000000, 0x80000000);
571 test_imull(0, 0x10000, 0x10000);
572
573 test_mulb(0x1234561d, 4);
574 test_mulb(3, -4);
575 test_mulb(0x80, 0x80);
576 test_mulb(0x10, 0x10);
577
578 test_mulw(0, 0x1234001d, 45);
579 test_mulw(0, 23, -45);
580 test_mulw(0, 0x8000, 0x8000);
581 test_mulw(0, 0x100, 0x100);
582
583 test_mull(0, 0x1234001d, 45);
584 test_mull(0, 23, -45);
585 test_mull(0, 0x80000000, 0x80000000);
586 test_mull(0, 0x10000, 0x10000);
587
588 test_imulw2(0x1234001d, 45);
589 test_imulw2(23, -45);
590 test_imulw2(0x8000, 0x8000);
591 test_imulw2(0x100, 0x100);
592
593 test_imull2(0x1234001d, 45);
594 test_imull2(23, -45);
595 test_imull2(0x80000000, 0x80000000);
596 test_imull2(0x10000, 0x10000);
597
598 TEST_IMUL_IM("w", "w", 45, 0x1234);
599 TEST_IMUL_IM("w", "w", -45, 23);
600 TEST_IMUL_IM("w", "w", 0x8000, 0x80000000);
601 TEST_IMUL_IM("w", "w", 0x7fff, 0x1000);
602
603 TEST_IMUL_IM("l", "k", 45, 0x1234);
604 TEST_IMUL_IM("l", "k", -45, 23);
605 TEST_IMUL_IM("l", "k", 0x8000, 0x80000000);
606 TEST_IMUL_IM("l", "k", 0x7fff, 0x1000);
607
608 test_idivb(0x12341678, 0x127e);
609 test_idivb(0x43210123, -5);
610 test_idivb(0x12340004, -1);
611
612 test_idivw(0, 0x12345678, 12347);
613 test_idivw(0, -23223, -45);
614 test_idivw(0, 0x12348000, -1);
615 test_idivw(0x12343, 0x12345678, 0x81238567);
616
617 test_idivl(0, 0x12345678, 12347);
618 test_idivl(0, -233223, -45);
619 test_idivl(0, 0x80000000, -1);
620 test_idivl(0x12343, 0x12345678, 0x81234567);
621
622 test_divb(0x12341678, 0x127e);
623 test_divb(0x43210123, -5);
624 test_divb(0x12340004, -1);
625
626 test_divw(0, 0x12345678, 12347);
627 test_divw(0, -23223, -45);
628 test_divw(0, 0x12348000, -1);
629 test_divw(0x12343, 0x12345678, 0x81238567);
630
631 test_divl(0, 0x12345678, 12347);
632 test_divl(0, -233223, -45);
633 test_divl(0, 0x80000000, -1);
634 test_divl(0x12343, 0x12345678, 0x81234567);
635
636 #if defined(__x86_64__)
637 test_imulq(0, 0x1234001d1234001d, 45);
638 test_imulq(0, 23, -45);
639 test_imulq(0, 0x8000000000000000, 0x8000000000000000);
640 test_imulq(0, 0x100000000, 0x100000000);
641
642 test_mulq(0, 0x1234001d1234001d, 45);
643 test_mulq(0, 23, -45);
644 test_mulq(0, 0x8000000000000000, 0x8000000000000000);
645 test_mulq(0, 0x100000000, 0x100000000);
646
647 test_imulq2(0x1234001d1234001d, 45);
648 test_imulq2(23, -45);
649 test_imulq2(0x8000000000000000, 0x8000000000000000);
650 test_imulq2(0x100000000, 0x100000000);
651
652 TEST_IMUL_IM("q", "", 45, 0x12341234);
653 TEST_IMUL_IM("q", "", -45, 23);
654 TEST_IMUL_IM("q", "", 0x8000, 0x8000000000000000);
655 TEST_IMUL_IM("q", "", 0x7fff, 0x10000000);
656
657 test_idivq(0, 0x12345678abcdef, 12347);
658 test_idivq(0, -233223, -45);
659 test_idivq(0, 0x8000000000000000, -1);
660 test_idivq(0x12343, 0x12345678, 0x81234567);
661
662 test_divq(0, 0x12345678abcdef, 12347);
663 test_divq(0, -233223, -45);
664 test_divq(0, 0x8000000000000000, -1);
665 test_divq(0x12343, 0x12345678, 0x81234567);
666 #endif
667 }
668
669 #define TEST_BSX(op, size, op0)\
670 {\
671 long res, val, resz;\
672 val = op0;\
673 asm("xor %1, %1\n"\
674 "mov $0x12345678, %0\n"\
675 #op " %" size "2, %" size "0 ; setz %b1" \
676 : "=r" (res), "=q" (resz)\
677 : "g" (val));\
678 printf("%-10s A=" FMTLX " R=" FMTLX " %ld\n", #op, val, res, resz);\
679 }
680
681 void test_bsx(void)
682 {
683 TEST_BSX(bsrw, "w", 0);
684 TEST_BSX(bsrw, "w", 0x12340128);
685 TEST_BSX(bsfw, "w", 0);
686 TEST_BSX(bsfw, "w", 0x12340128);
687 TEST_BSX(bsrl, "k", 0);
688 TEST_BSX(bsrl, "k", 0x00340128);
689 TEST_BSX(bsfl, "k", 0);
690 TEST_BSX(bsfl, "k", 0x00340128);
691 #if defined(__x86_64__)
692 TEST_BSX(bsrq, "", 0);
693 TEST_BSX(bsrq, "", 0x003401281234);
694 TEST_BSX(bsfq, "", 0);
695 TEST_BSX(bsfq, "", 0x003401281234);
696 #endif
697 }
698
699 /**********************************************/
700
701 union float64u {
702 double d;
703 uint64_t l;
704 };
705
706 union float64u q_nan = { .l = 0xFFF8000000000000LL };
707 union float64u s_nan = { .l = 0xFFF0000000000000LL };
708
709 void test_fops(double a, double b)
710 {
711 printf("a=%f b=%f a+b=%f\n", a, b, a + b);
712 printf("a=%f b=%f a-b=%f\n", a, b, a - b);
713 printf("a=%f b=%f a*b=%f\n", a, b, a * b);
714 printf("a=%f b=%f a/b=%f\n", a, b, a / b);
715 printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b));
716 printf("a=%f sqrt(a)=%f\n", a, sqrt(a));
717 printf("a=%f sin(a)=%f\n", a, sin(a));
718 printf("a=%f cos(a)=%f\n", a, cos(a));
719 printf("a=%f tan(a)=%f\n", a, tan(a));
720 printf("a=%f log(a)=%f\n", a, log(a));
721 printf("a=%f exp(a)=%f\n", a, exp(a));
722 printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b));
723 /* just to test some op combining */
724 printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a)));
725 printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a)));
726 printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a)));
727
728 }
729
730 void fpu_clear_exceptions(void)
731 {
732 struct __attribute__((packed)) {
733 uint16_t fpuc;
734 uint16_t dummy1;
735 uint16_t fpus;
736 uint16_t dummy2;
737 uint16_t fptag;
738 uint16_t dummy3;
739 uint32_t ignored[4];
740 long double fpregs[8];
741 } float_env32;
742
743 asm volatile ("fnstenv %0\n" : : "m" (float_env32));
744 float_env32.fpus &= ~0x7f;
745 asm volatile ("fldenv %0\n" : : "m" (float_env32));
746 }
747
748 /* XXX: display exception bits when supported */
749 #define FPUS_EMASK 0x0000
750 //#define FPUS_EMASK 0x007f
751
752 void test_fcmp(double a, double b)
753 {
754 long eflags, fpus;
755
756 fpu_clear_exceptions();
757 asm("fcom %2\n"
758 "fstsw %%ax\n"
759 : "=a" (fpus)
760 : "t" (a), "u" (b));
761 printf("fcom(%f %f)=%04lx \n",
762 a, b, fpus & (0x4500 | FPUS_EMASK));
763 fpu_clear_exceptions();
764 asm("fucom %2\n"
765 "fstsw %%ax\n"
766 : "=a" (fpus)
767 : "t" (a), "u" (b));
768 printf("fucom(%f %f)=%04lx\n",
769 a, b, fpus & (0x4500 | FPUS_EMASK));
770 if (TEST_FCOMI) {
771 /* test f(u)comi instruction */
772 fpu_clear_exceptions();
773 asm("fcomi %3, %2\n"
774 "fstsw %%ax\n"
775 "pushf\n"
776 "pop %0\n"
777 : "=r" (eflags), "=a" (fpus)
778 : "t" (a), "u" (b));
779 printf("fcomi(%f %f)=%04lx %02lx\n",
780 a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C));
781 fpu_clear_exceptions();
782 asm("fucomi %3, %2\n"
783 "fstsw %%ax\n"
784 "pushf\n"
785 "pop %0\n"
786 : "=r" (eflags), "=a" (fpus)
787 : "t" (a), "u" (b));
788 printf("fucomi(%f %f)=%04lx %02lx\n",
789 a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C));
790 }
791 fpu_clear_exceptions();
792 asm volatile("fxam\n"
793 "fstsw %%ax\n"
794 : "=a" (fpus)
795 : "t" (a));
796 printf("fxam(%f)=%04lx\n", a, fpus & 0x4700);
797 fpu_clear_exceptions();
798 }
799
800 void test_fcvt(double a)
801 {
802 float fa;
803 long double la;
804 int16_t fpuc;
805 int i;
806 int64_t lla;
807 int ia;
808 int16_t wa;
809 double ra;
810
811 fa = a;
812 la = a;
813 printf("(float)%f = %f\n", a, fa);
814 printf("(long double)%f = %Lf\n", a, la);
815 printf("a=" FMT64X "\n", *(uint64_t *)&a);
816 printf("la=" FMT64X " %04x\n", *(uint64_t *)&la,
817 *(unsigned short *)((char *)(&la) + 8));
818
819 /* test all roundings */
820 asm volatile ("fstcw %0" : "=m" (fpuc));
821 for(i=0;i<4;i++) {
822 uint16_t val16;
823 val16 = (fpuc & ~0x0c00) | (i << 10);
824 asm volatile ("fldcw %0" : : "m" (val16));
825 asm volatile ("fist %0" : "=m" (wa) : "t" (a));
826 asm volatile ("fistl %0" : "=m" (ia) : "t" (a));
827 asm volatile ("fistpll %0" : "=m" (lla) : "t" (a) : "st");
828 asm volatile ("frndint ; fstl %0" : "=m" (ra) : "t" (a));
829 asm volatile ("fldcw %0" : : "m" (fpuc));
830 printf("(short)a = %d\n", wa);
831 printf("(int)a = %d\n", ia);
832 printf("(int64_t)a = " FMT64X "\n", lla);
833 printf("rint(a) = %f\n", ra);
834 }
835 }
836
837 #define TEST(N) \
838 asm("fld" #N : "=t" (a)); \
839 printf("fld" #N "= %f\n", a);
840
841 void test_fconst(void)
842 {
843 double a;
844 TEST(1);
845 TEST(l2t);
846 TEST(l2e);
847 TEST(pi);
848 TEST(lg2);
849 TEST(ln2);
850 TEST(z);
851 }
852
853 void test_fbcd(double a)
854 {
855 unsigned short bcd[5];
856 double b;
857
858 asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st");
859 asm("fbld %1" : "=t" (b) : "m" (bcd[0]));
860 printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n",
861 a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
862 }
863
864 #define TEST_ENV(env, save, restore)\
865 {\
866 memset((env), 0xaa, sizeof(*(env)));\
867 for(i=0;i<5;i++)\
868 asm volatile ("fldl %0" : : "m" (dtab[i]));\
869 asm volatile (save " %0\n" : : "m" (*(env)));\
870 asm volatile (restore " %0\n": : "m" (*(env)));\
871 for(i=0;i<5;i++)\
872 asm volatile ("fstpl %0" : "=m" (rtab[i]));\
873 for(i=0;i<5;i++)\
874 printf("res[%d]=%f\n", i, rtab[i]);\
875 printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
876 (env)->fpuc,\
877 (env)->fpus & 0xff00,\
878 (env)->fptag);\
879 }
880
881 void test_fenv(void)
882 {
883 struct __attribute__((packed)) {
884 uint16_t fpuc;
885 uint16_t dummy1;
886 uint16_t fpus;
887 uint16_t dummy2;
888 uint16_t fptag;
889 uint16_t dummy3;
890 uint32_t ignored[4];
891 long double fpregs[8];
892 } float_env32;
893 struct __attribute__((packed)) {
894 uint16_t fpuc;
895 uint16_t fpus;
896 uint16_t fptag;
897 uint16_t ignored[4];
898 long double fpregs[8];
899 } float_env16;
900 double dtab[8];
901 double rtab[8];
902 int i;
903
904 for(i=0;i<8;i++)
905 dtab[i] = i + 1;
906
907 TEST_ENV(&float_env16, "data16 fnstenv", "data16 fldenv");
908 TEST_ENV(&float_env16, "data16 fnsave", "data16 frstor");
909 TEST_ENV(&float_env32, "fnstenv", "fldenv");
910 TEST_ENV(&float_env32, "fnsave", "frstor");
911
912 /* test for ffree */
913 for(i=0;i<5;i++)
914 asm volatile ("fldl %0" : : "m" (dtab[i]));
915 asm volatile("ffree %st(2)");
916 asm volatile ("fnstenv %0\n" : : "m" (float_env32));
917 asm volatile ("fninit");
918 printf("fptag=%04x\n", float_env32.fptag);
919 }
920
921
922 #define TEST_FCMOV(a, b, eflags, CC)\
923 {\
924 double res;\
925 asm("push %3\n"\
926 "popf\n"\
927 "fcmov" CC " %2, %0\n"\
928 : "=t" (res)\
929 : "0" (a), "u" (b), "g" (eflags));\
930 printf("fcmov%s eflags=0x%04lx-> %f\n", \
931 CC, (long)eflags, res);\
932 }
933
934 void test_fcmov(void)
935 {
936 double a, b;
937 long eflags, i;
938
939 a = 1.0;
940 b = 2.0;
941 for(i = 0; i < 4; i++) {
942 eflags = 0;
943 if (i & 1)
944 eflags |= CC_C;
945 if (i & 2)
946 eflags |= CC_Z;
947 TEST_FCMOV(a, b, eflags, "b");
948 TEST_FCMOV(a, b, eflags, "e");
949 TEST_FCMOV(a, b, eflags, "be");
950 TEST_FCMOV(a, b, eflags, "nb");
951 TEST_FCMOV(a, b, eflags, "ne");
952 TEST_FCMOV(a, b, eflags, "nbe");
953 }
954 TEST_FCMOV(a, b, 0, "u");
955 TEST_FCMOV(a, b, CC_P, "u");
956 TEST_FCMOV(a, b, 0, "nu");
957 TEST_FCMOV(a, b, CC_P, "nu");
958 }
959
960 void test_floats(void)
961 {
962 test_fops(2, 3);
963 test_fops(1.4, -5);
964 test_fcmp(2, -1);
965 test_fcmp(2, 2);
966 test_fcmp(2, 3);
967 test_fcmp(2, q_nan.d);
968 test_fcmp(q_nan.d, -1);
969 test_fcmp(-1.0/0.0, -1);
970 test_fcmp(1.0/0.0, -1);
971 test_fcvt(0.5);
972 test_fcvt(-0.5);
973 test_fcvt(1.0/7.0);
974 test_fcvt(-1.0/9.0);
975 test_fcvt(32768);
976 test_fcvt(-1e20);
977 test_fcvt(-1.0/0.0);
978 test_fcvt(1.0/0.0);
979 test_fcvt(q_nan.d);
980 test_fconst();
981 test_fbcd(1234567890123456.0);
982 test_fbcd(-123451234567890.0);
983 test_fenv();
984 if (TEST_CMOV) {
985 test_fcmov();
986 }
987 }
988
989 /**********************************************/
990 #if !defined(__x86_64__)
991
992 #define TEST_BCD(op, op0, cc_in, cc_mask)\
993 {\
994 int res, flags;\
995 res = op0;\
996 flags = cc_in;\
997 asm ("push %3\n\t"\
998 "popf\n\t"\
999 #op "\n\t"\
1000 "pushf\n\t"\
1001 "pop %1\n\t"\
1002 : "=a" (res), "=g" (flags)\
1003 : "0" (res), "1" (flags));\
1004 printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\
1005 #op, op0, res, cc_in, flags & cc_mask);\
1006 }
1007
1008 void test_bcd(void)
1009 {
1010 TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1011 TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1012 TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1013 TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1014 TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1015 TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1016 TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1017 TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1018 TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1019 TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1020 TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1021 TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1022 TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1023
1024 TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1025 TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1026 TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1027 TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1028 TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1029 TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1030 TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1031 TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1032 TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1033 TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1034 TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1035 TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1036 TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1037
1038 TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A));
1039 TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A));
1040 TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A));
1041 TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A));
1042 TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A));
1043 TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A));
1044 TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A));
1045 TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A));
1046
1047 TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A));
1048 TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A));
1049 TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A));
1050 TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A));
1051 TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A));
1052 TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A));
1053 TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A));
1054 TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A));
1055
1056 TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
1057 TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
1058 }
1059 #endif
1060
1061 #define TEST_XCHG(op, size, opconst)\
1062 {\
1063 long op0, op1;\
1064 op0 = i2l(0x12345678);\
1065 op1 = i2l(0xfbca7654);\
1066 asm(#op " %" size "0, %" size "1" \
1067 : "=q" (op0), opconst (op1) \
1068 : "0" (op0), "1" (op1));\
1069 printf("%-10s A=" FMTLX " B=" FMTLX "\n",\
1070 #op, op0, op1);\
1071 }
1072
1073 #define TEST_CMPXCHG(op, size, opconst, eax)\
1074 {\
1075 long op0, op1, op2;\
1076 op0 = i2l(0x12345678);\
1077 op1 = i2l(0xfbca7654);\
1078 op2 = i2l(eax);\
1079 asm(#op " %" size "0, %" size "1" \
1080 : "=q" (op0), opconst (op1) \
1081 : "0" (op0), "1" (op1), "a" (op2));\
1082 printf("%-10s EAX=" FMTLX " A=" FMTLX " C=" FMTLX "\n",\
1083 #op, op2, op0, op1);\
1084 }
1085
1086 void test_xchg(void)
1087 {
1088 #if defined(__x86_64__)
1089 TEST_XCHG(xchgq, "", "=q");
1090 #endif
1091 TEST_XCHG(xchgl, "k", "=q");
1092 TEST_XCHG(xchgw, "w", "=q");
1093 TEST_XCHG(xchgb, "b", "=q");
1094
1095 #if defined(__x86_64__)
1096 TEST_XCHG(xchgq, "", "=m");
1097 #endif
1098 TEST_XCHG(xchgl, "k", "=m");
1099 TEST_XCHG(xchgw, "w", "=m");
1100 TEST_XCHG(xchgb, "b", "=m");
1101
1102 #if defined(__x86_64__)
1103 TEST_XCHG(xaddq, "", "=q");
1104 #endif
1105 TEST_XCHG(xaddl, "k", "=q");
1106 TEST_XCHG(xaddw, "w", "=q");
1107 TEST_XCHG(xaddb, "b", "=q");
1108
1109 {
1110 int res;
1111 res = 0x12345678;
1112 asm("xaddl %1, %0" : "=r" (res) : "0" (res));
1113 printf("xaddl same res=%08x\n", res);
1114 }
1115
1116 #if defined(__x86_64__)
1117 TEST_XCHG(xaddq, "", "=m");
1118 #endif
1119 TEST_XCHG(xaddl, "k", "=m");
1120 TEST_XCHG(xaddw, "w", "=m");
1121 TEST_XCHG(xaddb, "b", "=m");
1122
1123 #if defined(__x86_64__)
1124 TEST_CMPXCHG(cmpxchgq, "", "=q", 0xfbca7654);
1125 #endif
1126 TEST_CMPXCHG(cmpxchgl, "k", "=q", 0xfbca7654);
1127 TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654);
1128 TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654);
1129
1130 #if defined(__x86_64__)
1131 TEST_CMPXCHG(cmpxchgq, "", "=q", 0xfffefdfc);
1132 #endif
1133 TEST_CMPXCHG(cmpxchgl, "k", "=q", 0xfffefdfc);
1134 TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc);
1135 TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc);
1136
1137 #if defined(__x86_64__)
1138 TEST_CMPXCHG(cmpxchgq, "", "=m", 0xfbca7654);
1139 #endif
1140 TEST_CMPXCHG(cmpxchgl, "k", "=m", 0xfbca7654);
1141 TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654);
1142 TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654);
1143
1144 #if defined(__x86_64__)
1145 TEST_CMPXCHG(cmpxchgq, "", "=m", 0xfffefdfc);
1146 #endif
1147 TEST_CMPXCHG(cmpxchgl, "k", "=m", 0xfffefdfc);
1148 TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc);
1149 TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc);
1150
1151 {
1152 uint64_t op0, op1, op2;
1153 long i, eflags;
1154
1155 for(i = 0; i < 2; i++) {
1156 op0 = 0x123456789abcdLL;
1157 if (i == 0)
1158 op1 = 0xfbca765423456LL;
1159 else
1160 op1 = op0;
1161 op2 = 0x6532432432434LL;
1162 asm("cmpxchg8b %1\n"
1163 "pushf\n"
1164 "pop %2\n"
1165 : "=A" (op0), "=m" (op1), "=g" (eflags)
1166 : "0" (op0), "m" (op1), "b" ((int)op2), "c" ((int)(op2 >> 32)));
1167 printf("cmpxchg8b: op0=" FMT64X " op1=" FMT64X " CC=%02lx\n",
1168 op0, op1, eflags & CC_Z);
1169 }
1170 }
1171 }
1172
1173 #ifdef TEST_SEGS
1174 /**********************************************/
1175 /* segmentation tests */
1176
1177 #include <sys/syscall.h>
1178 #include <unistd.h>
1179 #include <asm/ldt.h>
1180 #include <linux/version.h>
1181
1182 static inline int modify_ldt(int func, void * ptr, unsigned long bytecount)
1183 {
1184 return syscall(__NR_modify_ldt, func, ptr, bytecount);
1185 }
1186
1187 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 66)
1188 #define modify_ldt_ldt_s user_desc
1189 #endif
1190
1191 #define MK_SEL(n) (((n) << 3) | 7)
1192
1193 uint8_t seg_data1[4096];
1194 uint8_t seg_data2[4096];
1195
1196 #define TEST_LR(op, size, seg, mask)\
1197 {\
1198 int res, res2;\
1199 res = 0x12345678;\
1200 asm (op " %" size "2, %" size "0\n" \
1201 "movl $0, %1\n"\
1202 "jnz 1f\n"\
1203 "movl $1, %1\n"\
1204 "1:\n"\
1205 : "=r" (res), "=r" (res2) : "m" (seg), "0" (res));\
1206 printf(op ": Z=%d %08x\n", res2, res & ~(mask));\
1207 }
1208
1209 /* NOTE: we use Linux modify_ldt syscall */
1210 void test_segs(void)
1211 {
1212 struct modify_ldt_ldt_s ldt;
1213 long long ldt_table[3];
1214 int res, res2;
1215 char tmp;
1216 struct {
1217 uint32_t offset;
1218 uint16_t seg;
1219 } __attribute__((packed)) segoff;
1220
1221 ldt.entry_number = 1;
1222 ldt.base_addr = (unsigned long)&seg_data1;
1223 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
1224 ldt.seg_32bit = 1;
1225 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1226 ldt.read_exec_only = 0;
1227 ldt.limit_in_pages = 1;
1228 ldt.seg_not_present = 0;
1229 ldt.useable = 1;
1230 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1231
1232 ldt.entry_number = 2;
1233 ldt.base_addr = (unsigned long)&seg_data2;
1234 ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12;
1235 ldt.seg_32bit = 1;
1236 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1237 ldt.read_exec_only = 0;
1238 ldt.limit_in_pages = 1;
1239 ldt.seg_not_present = 0;
1240 ldt.useable = 1;
1241 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1242
1243 modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */
1244 #if 0
1245 {
1246 int i;
1247 for(i=0;i<3;i++)
1248 printf("%d: %016Lx\n", i, ldt_table[i]);
1249 }
1250 #endif
1251 /* do some tests with fs or gs */
1252 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
1253
1254 seg_data1[1] = 0xaa;
1255 seg_data2[1] = 0x55;
1256
1257 asm volatile ("fs movzbl 0x1, %0" : "=r" (res));
1258 printf("FS[1] = %02x\n", res);
1259
1260 asm volatile ("pushl %%gs\n"
1261 "movl %1, %%gs\n"
1262 "gs movzbl 0x1, %0\n"
1263 "popl %%gs\n"
1264 : "=r" (res)
1265 : "r" (MK_SEL(2)));
1266 printf("GS[1] = %02x\n", res);
1267
1268 /* tests with ds/ss (implicit segment case) */
1269 tmp = 0xa5;
1270 asm volatile ("pushl %%ebp\n\t"
1271 "pushl %%ds\n\t"
1272 "movl %2, %%ds\n\t"
1273 "movl %3, %%ebp\n\t"
1274 "movzbl 0x1, %0\n\t"
1275 "movzbl (%%ebp), %1\n\t"
1276 "popl %%ds\n\t"
1277 "popl %%ebp\n\t"
1278 : "=r" (res), "=r" (res2)
1279 : "r" (MK_SEL(1)), "r" (&tmp));
1280 printf("DS[1] = %02x\n", res);
1281 printf("SS[tmp] = %02x\n", res2);
1282
1283 segoff.seg = MK_SEL(2);
1284 segoff.offset = 0xabcdef12;
1285 asm volatile("lfs %2, %0\n\t"
1286 "movl %%fs, %1\n\t"
1287 : "=r" (res), "=g" (res2)
1288 : "m" (segoff));
1289 printf("FS:reg = %04x:%08x\n", res2, res);
1290
1291 TEST_LR("larw", "w", MK_SEL(2), 0x0100);
1292 TEST_LR("larl", "", MK_SEL(2), 0x0100);
1293 TEST_LR("lslw", "w", MK_SEL(2), 0);
1294 TEST_LR("lsll", "", MK_SEL(2), 0);
1295
1296 TEST_LR("larw", "w", 0xfff8, 0);
1297 TEST_LR("larl", "", 0xfff8, 0);
1298 TEST_LR("lslw", "w", 0xfff8, 0);
1299 TEST_LR("lsll", "", 0xfff8, 0);
1300 }
1301
1302 /* 16 bit code test */
1303 extern char code16_start, code16_end;
1304 extern char code16_func1;
1305 extern char code16_func2;
1306 extern char code16_func3;
1307
1308 void test_code16(void)
1309 {
1310 struct modify_ldt_ldt_s ldt;
1311 int res, res2;
1312
1313 /* build a code segment */
1314 ldt.entry_number = 1;
1315 ldt.base_addr = (unsigned long)&code16_start;
1316 ldt.limit = &code16_end - &code16_start;
1317 ldt.seg_32bit = 0;
1318 ldt.contents = MODIFY_LDT_CONTENTS_CODE;
1319 ldt.read_exec_only = 0;
1320 ldt.limit_in_pages = 0;
1321 ldt.seg_not_present = 0;
1322 ldt.useable = 1;
1323 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1324
1325 /* call the first function */
1326 asm volatile ("lcall %1, %2"
1327 : "=a" (res)
1328 : "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc");
1329 printf("func1() = 0x%08x\n", res);
1330 asm volatile ("lcall %2, %3"
1331 : "=a" (res), "=c" (res2)
1332 : "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc");
1333 printf("func2() = 0x%08x spdec=%d\n", res, res2);
1334 asm volatile ("lcall %1, %2"
1335 : "=a" (res)
1336 : "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc");
1337 printf("func3() = 0x%08x\n", res);
1338 }
1339 #endif
1340
1341 #if defined(__x86_64__)
1342 asm(".globl func_lret\n"
1343 "func_lret:\n"
1344 "movl $0x87654641, %eax\n"
1345 "lretq\n");
1346 #else
1347 asm(".globl func_lret\n"
1348 "func_lret:\n"
1349 "movl $0x87654321, %eax\n"
1350 "lret\n"
1351
1352 ".globl func_iret\n"
1353 "func_iret:\n"
1354 "movl $0xabcd4321, %eax\n"
1355 "iret\n");
1356 #endif
1357
1358 extern char func_lret;
1359 extern char func_iret;
1360
1361 void test_misc(void)
1362 {
1363 char table[256];
1364 long res, i;
1365
1366 for(i=0;i<256;i++) table[i] = 256 - i;
1367 res = 0x12345678;
1368 asm ("xlat" : "=a" (res) : "b" (table), "0" (res));
1369 printf("xlat: EAX=" FMTLX "\n", res);
1370
1371 #if defined(__x86_64__)
1372 {
1373 static struct __attribute__((packed)) {
1374 uint32_t offset;
1375 uint16_t seg;
1376 } desc;
1377 long cs_sel;
1378
1379 asm volatile ("mov %%cs, %0" : "=r" (cs_sel));
1380
1381 asm volatile ("push %1\n"
1382 "call func_lret\n"
1383 : "=a" (res)
1384 : "r" (cs_sel) : "memory", "cc");
1385 printf("func_lret=" FMTLX "\n", res);
1386
1387 /* NOTE: we assume that &func_lret < 4GB */
1388 desc.offset = (long)&func_lret;
1389 desc.seg = cs_sel;
1390
1391 asm volatile ("xor %%rax, %%rax\n"
1392 "rex64 lcall %1\n"
1393 : "=a" (res)
1394 : "m" (desc)
1395 : "memory", "cc");
1396 printf("func_lret2=" FMTLX "\n", res);
1397
1398 asm volatile ("push %2\n"
1399 "mov $ 1f, %%rax\n"
1400 "push %%rax\n"
1401 "ljmp %1\n"
1402 "1:\n"
1403 : "=a" (res)
1404 : "m" (desc), "b" (cs_sel)
1405 : "memory", "cc");
1406 printf("func_lret3=" FMTLX "\n", res);
1407 }
1408 #else
1409 asm volatile ("push %%cs ; call %1"
1410 : "=a" (res)
1411 : "m" (func_lret): "memory", "cc");
1412 printf("func_lret=" FMTLX "\n", res);
1413
1414 asm volatile ("pushf ; push %%cs ; call %1"
1415 : "=a" (res)
1416 : "m" (func_iret): "memory", "cc");
1417 printf("func_iret=" FMTLX "\n", res);
1418 #endif
1419
1420 #if defined(__x86_64__)
1421 /* specific popl test */
1422 asm volatile ("push $12345432 ; push $0x9abcdef ; pop (%%rsp) ; pop %0"
1423 : "=g" (res));
1424 printf("popl esp=" FMTLX "\n", res);
1425 #else
1426 /* specific popl test */
1427 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popl (%%esp) ; popl %0"
1428 : "=g" (res));
1429 printf("popl esp=" FMTLX "\n", res);
1430
1431 /* specific popw test */
1432 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popw (%%esp) ; addl $2, %%esp ; popl %0"
1433 : "=g" (res));
1434 printf("popw esp=" FMTLX "\n", res);
1435 #endif
1436 }
1437
1438 uint8_t str_buffer[4096];
1439
1440 #define TEST_STRING1(OP, size, DF, REP)\
1441 {\
1442 long esi, edi, eax, ecx, eflags;\
1443 \
1444 esi = (long)(str_buffer + sizeof(str_buffer) / 2);\
1445 edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\
1446 eax = i2l(0x12345678);\
1447 ecx = 17;\
1448 \
1449 asm volatile ("push $0\n\t"\
1450 "popf\n\t"\
1451 DF "\n\t"\
1452 REP #OP size "\n\t"\
1453 "cld\n\t"\
1454 "pushf\n\t"\
1455 "pop %4\n\t"\
1456 : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\
1457 : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\
1458 printf("%-10s ESI=" FMTLX " EDI=" FMTLX " EAX=" FMTLX " ECX=" FMTLX " EFL=%04x\n",\
1459 REP #OP size, esi, edi, eax, ecx,\
1460 (int)(eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)));\
1461 }
1462
1463 #define TEST_STRING(OP, REP)\
1464 TEST_STRING1(OP, "b", "", REP);\
1465 TEST_STRING1(OP, "w", "", REP);\
1466 TEST_STRING1(OP, "l", "", REP);\
1467 X86_64_ONLY(TEST_STRING1(OP, "q", "", REP));\
1468 TEST_STRING1(OP, "b", "std", REP);\
1469 TEST_STRING1(OP, "w", "std", REP);\
1470 TEST_STRING1(OP, "l", "std", REP);\
1471 X86_64_ONLY(TEST_STRING1(OP, "q", "std", REP))
1472
1473 void test_string(void)
1474 {
1475 int i;
1476 for(i = 0;i < sizeof(str_buffer); i++)
1477 str_buffer[i] = i + 0x56;
1478 TEST_STRING(stos, "");
1479 TEST_STRING(stos, "rep ");
1480 TEST_STRING(lods, ""); /* to verify stos */
1481 TEST_STRING(lods, "rep ");
1482 TEST_STRING(movs, "");
1483 TEST_STRING(movs, "rep ");
1484 TEST_STRING(lods, ""); /* to verify stos */
1485
1486 /* XXX: better tests */
1487 TEST_STRING(scas, "");
1488 TEST_STRING(scas, "repz ");
1489 TEST_STRING(scas, "repnz ");
1490 TEST_STRING(cmps, "");
1491 TEST_STRING(cmps, "repz ");
1492 TEST_STRING(cmps, "repnz ");
1493 }
1494
1495 #ifdef TEST_VM86
1496 /* VM86 test */
1497
1498 static inline void set_bit(uint8_t *a, unsigned int bit)
1499 {
1500 a[bit / 8] |= (1 << (bit % 8));
1501 }
1502
1503 static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg)
1504 {
1505 return (uint8_t *)((seg << 4) + (reg & 0xffff));
1506 }
1507
1508 static inline void pushw(struct vm86_regs *r, int val)
1509 {
1510 r->esp = (r->esp & ~0xffff) | ((r->esp - 2) & 0xffff);
1511 *(uint16_t *)seg_to_linear(r->ss, r->esp) = val;
1512 }
1513
1514 static inline int vm86(int func, struct vm86plus_struct *v86)
1515 {
1516 return syscall(__NR_vm86, func, v86);
1517 }
1518
1519 extern char vm86_code_start;
1520 extern char vm86_code_end;
1521
1522 #define VM86_CODE_CS 0x100
1523 #define VM86_CODE_IP 0x100
1524
1525 void test_vm86(void)
1526 {
1527 struct vm86plus_struct ctx;
1528 struct vm86_regs *r;
1529 uint8_t *vm86_mem;
1530 int seg, ret;
1531
1532 vm86_mem = mmap((void *)0x00000000, 0x110000,
1533 PROT_WRITE | PROT_READ | PROT_EXEC,
1534 MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
1535 if (vm86_mem == MAP_FAILED) {
1536 printf("ERROR: could not map vm86 memory");
1537 return;
1538 }
1539 memset(&ctx, 0, sizeof(ctx));
1540
1541 /* init basic registers */
1542 r = &ctx.regs;
1543 r->eip = VM86_CODE_IP;
1544 r->esp = 0xfffe;
1545 seg = VM86_CODE_CS;
1546 r->cs = seg;
1547 r->ss = seg;
1548 r->ds = seg;
1549 r->es = seg;
1550 r->fs = seg;
1551 r->gs = seg;
1552 r->eflags = VIF_MASK;
1553
1554 /* move code to proper address. We use the same layout as a .com
1555 dos program. */
1556 memcpy(vm86_mem + (VM86_CODE_CS << 4) + VM86_CODE_IP,
1557 &vm86_code_start, &vm86_code_end - &vm86_code_start);
1558
1559 /* mark int 0x21 as being emulated */
1560 set_bit((uint8_t *)&ctx.int_revectored, 0x21);
1561
1562 for(;;) {
1563 ret = vm86(VM86_ENTER, &ctx);
1564 switch(VM86_TYPE(ret)) {
1565 case VM86_INTx:
1566 {
1567 int int_num, ah, v;
1568
1569 int_num = VM86_ARG(ret);
1570 if (int_num != 0x21)
1571 goto unknown_int;
1572 ah = (r->eax >> 8) & 0xff;
1573 switch(ah) {
1574 case 0x00: /* exit */
1575 goto the_end;
1576 case 0x02: /* write char */
1577 {
1578 uint8_t c = r->edx;
1579 putchar(c);
1580 }
1581 break;
1582 case 0x09: /* write string */
1583 {
1584 uint8_t c, *ptr;
1585 ptr = seg_to_linear(r->ds, r->edx);
1586 for(;;) {
1587 c = *ptr++;
1588 if (c == '$')
1589 break;
1590 putchar(c);
1591 }
1592 r->eax = (r->eax & ~0xff) | '$';
1593 }
1594 break;
1595 case 0xff: /* extension: write eflags number in edx */
1596 v = (int)r->edx;
1597 #ifndef LINUX_VM86_IOPL_FIX
1598 v &= ~0x3000;
1599 #endif
1600 printf("%08x\n", v);
1601 break;
1602 default:
1603 unknown_int:
1604 printf("unsupported int 0x%02x\n", int_num);
1605 goto the_end;
1606 }
1607 }
1608 break;
1609 case VM86_SIGNAL:
1610 /* a signal came, we just ignore that */
1611 break;
1612 case VM86_STI:
1613 break;
1614 default:
1615 printf("ERROR: unhandled vm86 return code (0x%x)\n", ret);
1616 goto the_end;
1617 }
1618 }
1619 the_end:
1620 printf("VM86 end\n");
1621 munmap(vm86_mem, 0x110000);
1622 }
1623 #endif
1624
1625 /* exception tests */
1626 #if defined(__i386__) && !defined(REG_EAX)
1627 #define REG_EAX EAX
1628 #define REG_EBX EBX
1629 #define REG_ECX ECX
1630 #define REG_EDX EDX
1631 #define REG_ESI ESI
1632 #define REG_EDI EDI
1633 #define REG_EBP EBP
1634 #define REG_ESP ESP
1635 #define REG_EIP EIP
1636 #define REG_EFL EFL
1637 #define REG_TRAPNO TRAPNO
1638 #define REG_ERR ERR
1639 #endif
1640
1641 #if defined(__x86_64__)
1642 #define REG_EIP REG_RIP
1643 #endif
1644
1645 jmp_buf jmp_env;
1646 int v1;
1647 int tab[2];
1648
1649 void sig_handler(int sig, siginfo_t *info, void *puc)
1650 {
1651 struct ucontext *uc = puc;
1652
1653 printf("si_signo=%d si_errno=%d si_code=%d",
1654 info->si_signo, info->si_errno, info->si_code);
1655 printf(" si_addr=0x%08lx",
1656 (unsigned long)info->si_addr);
1657 printf("\n");
1658
1659 printf("trapno=" FMTLX " err=" FMTLX,
1660 (long)uc->uc_mcontext.gregs[REG_TRAPNO],
1661 (long)uc->uc_mcontext.gregs[REG_ERR]);
1662 printf(" EIP=" FMTLX, (long)uc->uc_mcontext.gregs[REG_EIP]);
1663 printf("\n");
1664 longjmp(jmp_env, 1);
1665 }
1666
1667 void test_exceptions(void)
1668 {
1669 struct sigaction act;
1670 volatile int val;
1671
1672 act.sa_sigaction = sig_handler;
1673 sigemptyset(&act.sa_mask);
1674 act.sa_flags = SA_SIGINFO | SA_NODEFER;
1675 sigaction(SIGFPE, &act, NULL);
1676 sigaction(SIGILL, &act, NULL);
1677 sigaction(SIGSEGV, &act, NULL);
1678 sigaction(SIGBUS, &act, NULL);
1679 sigaction(SIGTRAP, &act, NULL);
1680
1681 /* test division by zero reporting */
1682 printf("DIVZ exception:\n");
1683 if (setjmp(jmp_env) == 0) {
1684 /* now divide by zero */
1685 v1 = 0;
1686 v1 = 2 / v1;
1687 }
1688
1689 #if !defined(__x86_64__)
1690 printf("BOUND exception:\n");
1691 if (setjmp(jmp_env) == 0) {
1692 /* bound exception */
1693 tab[0] = 1;
1694 tab[1] = 10;
1695 asm volatile ("bound %0, %1" : : "r" (11), "m" (tab[0]));
1696 }
1697 #endif
1698
1699 #ifdef TEST_SEGS
1700 printf("segment exceptions:\n");
1701 if (setjmp(jmp_env) == 0) {
1702 /* load an invalid segment */
1703 asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1));
1704 }
1705 if (setjmp(jmp_env) == 0) {
1706 /* null data segment is valid */
1707 asm volatile ("movl %0, %%fs" : : "r" (3));
1708 /* null stack segment */
1709 asm volatile ("movl %0, %%ss" : : "r" (3));
1710 }
1711
1712 {
1713 struct modify_ldt_ldt_s ldt;
1714 ldt.entry_number = 1;
1715 ldt.base_addr = (unsigned long)&seg_data1;
1716 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
1717 ldt.seg_32bit = 1;
1718 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1719 ldt.read_exec_only = 0;
1720 ldt.limit_in_pages = 1;
1721 ldt.seg_not_present = 1;
1722 ldt.useable = 1;
1723 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1724
1725 if (setjmp(jmp_env) == 0) {
1726 /* segment not present */
1727 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
1728 }
1729 }
1730 #endif
1731
1732 /* test SEGV reporting */
1733 printf("PF exception:\n");
1734 if (setjmp(jmp_env) == 0) {
1735 val = 1;
1736 /* we add a nop to test a weird PC retrieval case */
1737 asm volatile ("nop");
1738 /* now store in an invalid address */
1739 *(char *)0x1234 = 1;
1740 }
1741
1742 /* test SEGV reporting */
1743 printf("PF exception:\n");
1744 if (setjmp(jmp_env) == 0) {
1745 val = 1;
1746 /* read from an invalid address */
1747 v1 = *(char *)0x1234;
1748 }
1749
1750 /* test illegal instruction reporting */
1751 printf("UD2 exception:\n");
1752 if (setjmp(jmp_env) == 0) {
1753 /* now execute an invalid instruction */
1754 asm volatile("ud2");
1755 }
1756 printf("lock nop exception:\n");
1757 if (setjmp(jmp_env) == 0) {
1758 /* now execute an invalid instruction */
1759 asm volatile("lock nop");
1760 }
1761
1762 printf("INT exception:\n");
1763 if (setjmp(jmp_env) == 0) {
1764 asm volatile ("int $0xfd");
1765 }
1766 if (setjmp(jmp_env) == 0) {
1767 asm volatile ("int $0x01");
1768 }
1769 if (setjmp(jmp_env) == 0) {
1770 asm volatile (".byte 0xcd, 0x03");
1771 }
1772 if (setjmp(jmp_env) == 0) {
1773 asm volatile ("int $0x04");
1774 }
1775 if (setjmp(jmp_env) == 0) {
1776 asm volatile ("int $0x05");
1777 }
1778
1779 printf("INT3 exception:\n");
1780 if (setjmp(jmp_env) == 0) {
1781 asm volatile ("int3");
1782 }
1783
1784 printf("CLI exception:\n");
1785 if (setjmp(jmp_env) == 0) {
1786 asm volatile ("cli");
1787 }
1788
1789 printf("STI exception:\n");
1790 if (setjmp(jmp_env) == 0) {
1791 asm volatile ("cli");
1792 }
1793
1794 #if !defined(__x86_64__)
1795 printf("INTO exception:\n");
1796 if (setjmp(jmp_env) == 0) {
1797 /* overflow exception */
1798 asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff));
1799 }
1800 #endif
1801
1802 printf("OUTB exception:\n");
1803 if (setjmp(jmp_env) == 0) {
1804 asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0));
1805 }
1806
1807 printf("INB exception:\n");
1808 if (setjmp(jmp_env) == 0) {
1809 asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321));
1810 }
1811
1812 printf("REP OUTSB exception:\n");
1813 if (setjmp(jmp_env) == 0) {
1814 asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1));
1815 }
1816
1817 printf("REP INSB exception:\n");
1818 if (setjmp(jmp_env) == 0) {
1819 asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1));
1820 }
1821
1822 printf("HLT exception:\n");
1823 if (setjmp(jmp_env) == 0) {
1824 asm volatile ("hlt");
1825 }
1826
1827 printf("single step exception:\n");
1828 val = 0;
1829 if (setjmp(jmp_env) == 0) {
1830 asm volatile ("pushf\n"
1831 "orl $0x00100, (%%esp)\n"
1832 "popf\n"
1833 "movl $0xabcd, %0\n"
1834 "movl $0x0, %0\n" : "=m" (val) : : "cc", "memory");
1835 }
1836 printf("val=0x%x\n", val);
1837 }
1838
1839 #if !defined(__x86_64__)
1840 /* specific precise single step test */
1841 void sig_trap_handler(int sig, siginfo_t *info, void *puc)
1842 {
1843 struct ucontext *uc = puc;
1844 printf("EIP=" FMTLX "\n", (long)uc->uc_mcontext.gregs[REG_EIP]);
1845 }
1846
1847 const uint8_t sstep_buf1[4] = { 1, 2, 3, 4};
1848 uint8_t sstep_buf2[4];
1849
1850 void test_single_step(void)
1851 {
1852 struct sigaction act;
1853 volatile int val;
1854 int i;
1855
1856 val = 0;
1857 act.sa_sigaction = sig_trap_handler;
1858 sigemptyset(&act.sa_mask);
1859 act.sa_flags = SA_SIGINFO;
1860 sigaction(SIGTRAP, &act, NULL);
1861 asm volatile ("pushf\n"
1862 "orl $0x00100, (%%esp)\n"
1863 "popf\n"
1864 "movl $0xabcd, %0\n"
1865
1866 /* jmp test */
1867 "movl $3, %%ecx\n"
1868 "1:\n"
1869 "addl $1, %0\n"
1870 "decl %%ecx\n"
1871 "jnz 1b\n"
1872
1873 /* movsb: the single step should stop at each movsb iteration */
1874 "movl $sstep_buf1, %%esi\n"
1875 "movl $sstep_buf2, %%edi\n"
1876 "movl $0, %%ecx\n"
1877 "rep movsb\n"
1878 "movl $3, %%ecx\n"
1879 "rep movsb\n"
1880 "movl $1, %%ecx\n"
1881 "rep movsb\n"
1882
1883 /* cmpsb: the single step should stop at each cmpsb iteration */
1884 "movl $sstep_buf1, %%esi\n"
1885 "movl $sstep_buf2, %%edi\n"
1886 "movl $0, %%ecx\n"
1887 "rep cmpsb\n"
1888 "movl $4, %%ecx\n"
1889 "rep cmpsb\n"
1890
1891 /* getpid() syscall: single step should skip one
1892 instruction */
1893 "movl $20, %%eax\n"
1894 "int $0x80\n"
1895 "movl $0, %%eax\n"
1896
1897 /* when modifying SS, trace is not done on the next
1898 instruction */
1899 "movl %%ss, %%ecx\n"
1900 "movl %%ecx, %%ss\n"
1901 "addl $1, %0\n"
1902 "movl $1, %%eax\n"
1903 "movl %%ecx, %%ss\n"
1904 "jmp 1f\n"
1905 "addl $1, %0\n"
1906 "1:\n"
1907 "movl $1, %%eax\n"
1908 "pushl %%ecx\n"
1909 "popl %%ss\n"
1910 "addl $1, %0\n"
1911 "movl $1, %%eax\n"
1912
1913 "pushf\n"
1914 "andl $~0x00100, (%%esp)\n"
1915 "popf\n"
1916 : "=m" (val)
1917 :
1918 : "cc", "memory", "eax", "ecx", "esi", "edi");
1919 printf("val=%d\n", val);
1920 for(i = 0; i < 4; i++)
1921 printf("sstep_buf2[%d] = %d\n", i, sstep_buf2[i]);
1922 }
1923
1924 /* self modifying code test */
1925 uint8_t code[] = {
1926 0xb8, 0x1, 0x00, 0x00, 0x00, /* movl $1, %eax */
1927 0xc3, /* ret */
1928 };
1929
1930 asm("smc_code2:\n"
1931 "movl 4(%esp), %eax\n"
1932 "movl %eax, smc_patch_addr2 + 1\n"
1933 "nop\n"
1934 "nop\n"
1935 "nop\n"
1936 "nop\n"
1937 "nop\n"
1938 "nop\n"
1939 "nop\n"
1940 "nop\n"
1941 "smc_patch_addr2:\n"
1942 "movl $1, %eax\n"
1943 "ret\n");
1944
1945 typedef int FuncType(void);
1946 extern int smc_code2(int);
1947 void test_self_modifying_code(void)
1948 {
1949 int i;
1950
1951 printf("self modifying code:\n");
1952 printf("func1 = 0x%x\n", ((FuncType *)code)());
1953 for(i = 2; i <= 4; i++) {
1954 code[1] = i;
1955 printf("func%d = 0x%x\n", i, ((FuncType *)code)());
1956 }
1957
1958 /* more difficult test : the modified code is just after the
1959 modifying instruction. It is forbidden in Intel specs, but it
1960 is used by old DOS programs */
1961 for(i = 2; i <= 4; i++) {
1962 printf("smc_code2(%d) = %d\n", i, smc_code2(i));
1963 }
1964 }
1965 #endif
1966
1967 long enter_stack[4096];
1968
1969 #if defined(__x86_64__)
1970 #define RSP "%%rsp"
1971 #define RBP "%%rbp"
1972 #else
1973 #define RSP "%%esp"
1974 #define RBP "%%ebp"
1975 #endif
1976
1977 #define TEST_ENTER(size, stack_type, level)\
1978 {\
1979 long esp_save, esp_val, ebp_val, ebp_save, i;\
1980 stack_type *ptr, *stack_end, *stack_ptr;\
1981 memset(enter_stack, 0, sizeof(enter_stack));\
1982 stack_end = stack_ptr = (stack_type *)(enter_stack + 4096);\
1983 ebp_val = (long)stack_ptr;\
1984 for(i=1;i<=32;i++)\
1985 *--stack_ptr = i;\
1986 esp_val = (long)stack_ptr;\
1987 asm("mov " RSP ", %[esp_save]\n"\
1988 "mov " RBP ", %[ebp_save]\n"\
1989 "mov %[esp_val], " RSP "\n"\
1990 "mov %[ebp_val], " RBP "\n"\
1991 "enter" size " $8, $" #level "\n"\
1992 "mov " RSP ", %[esp_val]\n"\
1993 "mov " RBP ", %[ebp_val]\n"\
1994 "mov %[esp_save], " RSP "\n"\
1995 "mov %[ebp_save], " RBP "\n"\
1996 : [esp_save] "=r" (esp_save),\
1997 [ebp_save] "=r" (ebp_save),\
1998 [esp_val] "=r" (esp_val),\
1999 [ebp_val] "=r" (ebp_val)\
2000 : "[esp_val]" (esp_val),\
2001 "[ebp_val]" (ebp_val));\
2002 printf("level=%d:\n", level);\
2003 printf("esp_val=" FMTLX "\n", esp_val - (long)stack_end);\
2004 printf("ebp_val=" FMTLX "\n", ebp_val - (long)stack_end);\
2005 for(ptr = (stack_type *)esp_val; ptr < stack_end; ptr++)\
2006 printf(FMTLX "\n", (long)ptr[0]);\
2007 }
2008
2009 static void test_enter(void)
2010 {
2011 #if defined(__x86_64__)
2012 TEST_ENTER("q", uint64_t, 0);
2013 TEST_ENTER("q", uint64_t, 1);
2014 TEST_ENTER("q", uint64_t, 2);
2015 TEST_ENTER("q", uint64_t, 31);
2016 #else
2017 TEST_ENTER("l", uint32_t, 0);
2018 TEST_ENTER("l", uint32_t, 1);
2019 TEST_ENTER("l", uint32_t, 2);
2020 TEST_ENTER("l", uint32_t, 31);
2021 #endif
2022
2023 TEST_ENTER("w", uint16_t, 0);
2024 TEST_ENTER("w", uint16_t, 1);
2025 TEST_ENTER("w", uint16_t, 2);
2026 TEST_ENTER("w", uint16_t, 31);
2027 }
2028
2029 #ifdef TEST_SSE
2030
2031 typedef int __m64 __attribute__ ((__mode__ (__V2SI__)));
2032 typedef int __m128 __attribute__ ((__mode__(__V4SF__)));
2033
2034 typedef union {
2035 double d[2];
2036 float s[4];
2037 uint32_t l[4];
2038 uint64_t q[2];
2039 __m128 dq;
2040 } XMMReg;
2041
2042 static uint64_t __attribute__((aligned(16))) test_values[4][2] = {
2043 { 0x456723c698694873, 0xdc515cff944a58ec },
2044 { 0x1f297ccd58bad7ab, 0x41f21efba9e3e146 },
2045 { 0x007c62c2085427f8, 0x231be9e8cde7438d },
2046 { 0x0f76255a085427f8, 0xc233e9e8c4c9439a },
2047 };
2048
2049 #define SSE_OP(op)\
2050 {\
2051 asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2052 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2053 #op,\
2054 a.q[1], a.q[0],\
2055 b.q[1], b.q[0],\
2056 r.q[1], r.q[0]);\
2057 }
2058
2059 #define SSE_OP2(op)\
2060 {\
2061 int i;\
2062 for(i=0;i<2;i++) {\
2063 a.q[0] = test_values[2*i][0];\
2064 a.q[1] = test_values[2*i][1];\
2065 b.q[0] = test_values[2*i+1][0];\
2066 b.q[1] = test_values[2*i+1][1];\
2067 SSE_OP(op);\
2068 }\
2069 }
2070
2071 #define MMX_OP2(op)\
2072 {\
2073 int i;\
2074 for(i=0;i<2;i++) {\
2075 a.q[0] = test_values[2*i][0];\
2076 b.q[0] = test_values[2*i+1][0];\
2077 asm volatile (#op " %2, %0" : "=y" (r.q[0]) : "0" (a.q[0]), "y" (b.q[0]));\
2078 printf("%-9s: a=" FMT64X " b=" FMT64X " r=" FMT64X "\n",\
2079 #op,\
2080 a.q[0],\
2081 b.q[0],\
2082 r.q[0]);\
2083 }\
2084 SSE_OP2(op);\
2085 }
2086
2087 #define SHUF_OP(op, ib)\
2088 {\
2089 a.q[0] = test_values[0][0];\
2090 a.q[1] = test_values[0][1];\
2091 b.q[0] = test_values[1][0];\
2092 b.q[1] = test_values[1][1];\
2093 asm volatile (#op " $" #ib ", %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2094 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2095 #op,\
2096 a.q[1], a.q[0],\
2097 b.q[1], b.q[0],\
2098 ib,\
2099 r.q[1], r.q[0]);\
2100 }
2101
2102 #define PSHUF_OP(op, ib)\
2103 {\
2104 int i;\
2105 for(i=0;i<2;i++) {\
2106 a.q[0] = test_values[2*i][0];\
2107 a.q[1] = test_values[2*i][1];\
2108 asm volatile (#op " $" #ib ", %1, %0" : "=x" (r.dq) : "x" (a.dq));\
2109 printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2110 #op,\
2111 a.q[1], a.q[0],\
2112 ib,\
2113 r.q[1], r.q[0]);\
2114 }\
2115 }
2116
2117 #define SHIFT_IM(op, ib)\
2118 {\
2119 int i;\
2120 for(i=0;i<2;i++) {\
2121 a.q[0] = test_values[2*i][0];\
2122 a.q[1] = test_values[2*i][1];\
2123 asm volatile (#op " $" #ib ", %0" : "=x" (r.dq) : "0" (a.dq));\
2124 printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2125 #op,\
2126 a.q[1], a.q[0],\
2127 ib,\
2128 r.q[1], r.q[0]);\
2129 }\
2130 }
2131
2132 #define SHIFT_OP(op, ib)\
2133 {\
2134 int i;\
2135 SHIFT_IM(op, ib);\
2136 for(i=0;i<2;i++) {\
2137 a.q[0] = test_values[2*i][0];\
2138 a.q[1] = test_values[2*i][1];\
2139 b.q[0] = ib;\
2140 b.q[1] = 0;\
2141 asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2142 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2143 #op,\
2144 a.q[1], a.q[0],\
2145 b.q[1], b.q[0],\
2146 r.q[1], r.q[0]);\
2147 }\
2148 }
2149
2150 #define MOVMSK(op)\
2151 {\
2152 int i, reg;\
2153 for(i=0;i<2;i++) {\
2154 a.q[0] = test_values[2*i][0];\
2155 a.q[1] = test_values[2*i][1];\
2156 asm volatile (#op " %1, %0" : "=r" (reg) : "x" (a.dq));\
2157 printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\
2158 #op,\
2159 a.q[1], a.q[0],\
2160 reg);\
2161 }\
2162 }
2163
2164 #define SSE_OPS(a) \
2165 SSE_OP(a ## ps);\
2166 SSE_OP(a ## ss);
2167
2168 #define SSE_OPD(a) \
2169 SSE_OP(a ## pd);\
2170 SSE_OP(a ## sd);
2171
2172 #define SSE_COMI(op, field)\
2173 {\
2174 unsigned int eflags;\
2175 XMMReg a, b;\
2176 a.field[0] = a1;\
2177 b.field[0] = b1;\
2178 asm volatile (#op " %2, %1\n"\
2179 "pushf\n"\
2180 "pop %0\n"\
2181 : "=m" (eflags)\
2182 : "x" (a.dq), "x" (b.dq));\
2183 printf("%-9s: a=%f b=%f cc=%04x\n",\
2184 #op, a1, b1,\
2185 eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\
2186 }
2187
2188 void test_sse_comi(double a1, double b1)
2189 {
2190 SSE_COMI(ucomiss, s);
2191 SSE_COMI(ucomisd, d);
2192 SSE_COMI(comiss, s);
2193 SSE_COMI(comisd, d);
2194 }
2195
2196 #define CVT_OP_XMM(op)\
2197 {\
2198 asm volatile (#op " %1, %0" : "=x" (r.dq) : "x" (a.dq));\
2199 printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2200 #op,\
2201 a.q[1], a.q[0],\
2202 r.q[1], r.q[0]);\
2203 }
2204
2205 /* Force %xmm0 usage to avoid the case where both register index are 0
2206 to test intruction decoding more extensively */
2207 #define CVT_OP_XMM2MMX(op)\
2208 {\
2209 asm volatile (#op " %1, %0" : "=y" (r.q[0]) : "x" (a.dq) \
2210 : "%xmm0");\
2211 printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "\n",\
2212 #op,\
2213 a.q[1], a.q[0],\
2214 r.q[0]);\
2215 }
2216
2217 #define CVT_OP_MMX2XMM(op)\
2218 {\
2219 asm volatile (#op " %1, %0" : "=x" (r.dq) : "y" (a.q[0]));\
2220 printf("%-9s: a=" FMT64X " r=" FMT64X "" FMT64X "\n",\
2221 #op,\
2222 a.q[0],\
2223 r.q[1], r.q[0]);\
2224 }
2225
2226 #define CVT_OP_REG2XMM(op)\
2227 {\
2228 asm volatile (#op " %1, %0" : "=x" (r.dq) : "r" (a.l[0]));\
2229 printf("%-9s: a=%08x r=" FMT64X "" FMT64X "\n",\
2230 #op,\
2231 a.l[0],\
2232 r.q[1], r.q[0]);\
2233 }
2234
2235 #define CVT_OP_XMM2REG(op)\
2236 {\
2237 asm volatile (#op " %1, %0" : "=r" (r.l[0]) : "x" (a.dq));\
2238 printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\
2239 #op,\
2240 a.q[1], a.q[0],\
2241 r.l[0]);\
2242 }
2243
2244 struct fpxstate {
2245 uint16_t fpuc;
2246 uint16_t fpus;
2247 uint16_t fptag;
2248 uint16_t fop;
2249 uint32_t fpuip;
2250 uint16_t cs_sel;
2251 uint16_t dummy0;
2252 uint32_t fpudp;
2253 uint16_t ds_sel;
2254 uint16_t dummy1;
2255 uint32_t mxcsr;
2256 uint32_t mxcsr_mask;
2257 uint8_t fpregs1[8 * 16];
2258 uint8_t xmm_regs[8 * 16];
2259 uint8_t dummy2[224];
2260 };
2261
2262 static struct fpxstate fpx_state __attribute__((aligned(16)));
2263 static struct fpxstate fpx_state2 __attribute__((aligned(16)));
2264
2265 void test_fxsave(void)
2266 {
2267 struct fpxstate *fp = &fpx_state;
2268 struct fpxstate *fp2 = &fpx_state2;
2269 int i, nb_xmm;
2270 XMMReg a, b;
2271 a.q[0] = test_values[0][0];
2272 a.q[1] = test_values[0][1];
2273 b.q[0] = test_values[1][0];
2274 b.q[1] = test_values[1][1];
2275
2276 asm("movdqa %2, %%xmm0\n"
2277 "movdqa %3, %%xmm7\n"
2278 #if defined(__x86_64__)
2279 "movdqa %2, %%xmm15\n"
2280 #endif
2281 " fld1\n"
2282 " fldpi\n"
2283 " fldln2\n"
2284 " fxsave %0\n"
2285 " fxrstor %0\n"
2286 " fxsave %1\n"
2287 " fninit\n"
2288 : "=m" (*(uint32_t *)fp2), "=m" (*(uint32_t *)fp)
2289 : "m" (a), "m" (b));
2290 printf("fpuc=%04x\n", fp->fpuc);
2291 printf("fpus=%04x\n", fp->fpus);
2292 printf("fptag=%04x\n", fp->fptag);
2293 for(i = 0; i < 3; i++) {
2294 printf("ST%d: " FMT64X " %04x\n",
2295 i,
2296 *(uint64_t *)&fp->fpregs1[i * 16],
2297 *(uint16_t *)&fp->fpregs1[i * 16 + 8]);
2298 }
2299 printf("mxcsr=%08x\n", fp->mxcsr & 0x1f80);
2300 #if defined(__x86_64__)
2301 nb_xmm = 16;
2302 #else
2303 nb_xmm = 8;
2304 #endif
2305 for(i = 0; i < nb_xmm; i++) {
2306 printf("xmm%d: " FMT64X "" FMT64X "\n",
2307 i,
2308 *(uint64_t *)&fp->xmm_regs[i * 16],
2309 *(uint64_t *)&fp->xmm_regs[i * 16 + 8]);
2310 }
2311 }
2312
2313 void test_sse(void)
2314 {
2315 XMMReg r, a, b;
2316 int i;
2317
2318 MMX_OP2(punpcklbw);
2319 MMX_OP2(punpcklwd);
2320 MMX_OP2(punpckldq);
2321 MMX_OP2(packsswb);
2322 MMX_OP2(pcmpgtb);
2323 MMX_OP2(pcmpgtw);
2324 MMX_OP2(pcmpgtd);
2325 MMX_OP2(packuswb);
2326 MMX_OP2(punpckhbw);
2327 MMX_OP2(punpckhwd);
2328 MMX_OP2(punpckhdq);
2329 MMX_OP2(packssdw);
2330 MMX_OP2(pcmpeqb);
2331 MMX_OP2(pcmpeqw);
2332 MMX_OP2(pcmpeqd);
2333
2334 MMX_OP2(paddq);
2335 MMX_OP2(pmullw);
2336 MMX_OP2(psubusb);
2337 MMX_OP2(psubusw);
2338 MMX_OP2(pminub);
2339 MMX_OP2(pand);
2340 MMX_OP2(paddusb);
2341 MMX_OP2(paddusw);
2342 MMX_OP2(pmaxub);
2343 MMX_OP2(pandn);
2344
2345 MMX_OP2(pmulhuw);
2346 MMX_OP2(pmulhw);
2347
2348 MMX_OP2(psubsb);
2349 MMX_OP2(psubsw);
2350 MMX_OP2(pminsw);
2351 MMX_OP2(por);
2352 MMX_OP2(paddsb);
2353 MMX_OP2(paddsw);
2354 MMX_OP2(pmaxsw);
2355 MMX_OP2(pxor);
2356 MMX_OP2(pmuludq);
2357 MMX_OP2(pmaddwd);
2358 MMX_OP2(psadbw);
2359 MMX_OP2(psubb);
2360 MMX_OP2(psubw);
2361 MMX_OP2(psubd);
2362 MMX_OP2(psubq);
2363 MMX_OP2(paddb);
2364 MMX_OP2(paddw);
2365 MMX_OP2(paddd);
2366
2367 MMX_OP2(pavgb);
2368 MMX_OP2(pavgw);
2369
2370 asm volatile ("pinsrw $1, %1, %0" : "=y" (r.q[0]) : "r" (0x12345678));
2371 printf("%-9s: r=" FMT64X "\n", "pinsrw", r.q[0]);
2372
2373 asm volatile ("pinsrw $5, %1, %0" : "=x" (r.dq) : "r" (0x12345678));
2374 printf("%-9s: r=" FMT64X "" FMT64X "\n", "pinsrw", r.q[1], r.q[0]);
2375
2376 a.q[0] = test_values[0][0];
2377 a.q[1] = test_values[0][1];
2378 asm volatile ("pextrw $1, %1, %0" : "=r" (r.l[0]) : "y" (a.q[0]));
2379 printf("%-9s: r=%08x\n", "pextrw", r.l[0]);
2380
2381 asm volatile ("pextrw $5, %1, %0" : "=r" (r.l[0]) : "x" (a.dq));
2382 printf("%-9s: r=%08x\n", "pextrw", r.l[0]);
2383
2384 asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "y" (a.q[0]));
2385 printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]);
2386
2387 asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "x" (a.dq));
2388 printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]);
2389
2390 {
2391 r.q[0] = -1;
2392 r.q[1] = -1;
2393
2394 a.q[0] = test_values[0][0];
2395 a.q[1] = test_values[0][1];
2396 b.q[0] = test_values[1][0];
2397 b.q[1] = test_values[1][1];
2398 asm volatile("maskmovq %1, %0" :
2399 : "y" (a.q[0]), "y" (b.q[0]), "D" (&r)
2400 : "memory");
2401 printf("%-9s: r=" FMT64X " a=" FMT64X " b=" FMT64X "\n",
2402 "maskmov",
2403 r.q[0],
2404 a.q[0],
2405 b.q[0]);
2406 asm volatile("maskmovdqu %1, %0" :
2407 : "x" (a.dq), "x" (b.dq), "D" (&r)
2408 : "memory");
2409 printf("%-9s: r=" FMT64X "" FMT64X " a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X "\n",
2410 "maskmov",
2411 r.q[1], r.q[0],
2412 a.q[1], a.q[0],
2413 b.q[1], b.q[0]);
2414 }
2415
2416 asm volatile ("emms");
2417
2418 SSE_OP2(punpcklqdq);
2419 SSE_OP2(punpckhqdq);
2420 SSE_OP2(andps);
2421 SSE_OP2(andpd);
2422 SSE_OP2(andnps);
2423 SSE_OP2(andnpd);
2424 SSE_OP2(orps);
2425 SSE_OP2(orpd);
2426 SSE_OP2(xorps);
2427 SSE_OP2(xorpd);
2428
2429 SSE_OP2(unpcklps);
2430 SSE_OP2(unpcklpd);
2431 SSE_OP2(unpckhps);
2432 SSE_OP2(unpckhpd);
2433
2434 SHUF_OP(shufps, 0x78);
2435 SHUF_OP(shufpd, 0x02);
2436
2437 PSHUF_OP(pshufd, 0x78);
2438 PSHUF_OP(pshuflw, 0x78);
2439 PSHUF_OP(pshufhw, 0x78);
2440
2441 SHIFT_OP(psrlw, 7);
2442 SHIFT_OP(psrlw, 16);
2443 SHIFT_OP(psraw, 7);
2444 SHIFT_OP(psraw, 16);
2445 SHIFT_OP(psllw, 7);
2446 SHIFT_OP(psllw, 16);
2447
2448 SHIFT_OP(psrld, 7);
2449 SHIFT_OP(psrld, 32);
2450 SHIFT_OP(psrad, 7);
2451 SHIFT_OP(psrad, 32);
2452 SHIFT_OP(pslld, 7);
2453 SHIFT_OP(pslld, 32);
2454
2455 SHIFT_OP(psrlq, 7);
2456 SHIFT_OP(psrlq, 32);
2457 SHIFT_OP(psllq, 7);
2458 SHIFT_OP(psllq, 32);
2459
2460 SHIFT_IM(psrldq, 16);
2461 SHIFT_IM(psrldq, 7);
2462 SHIFT_IM(pslldq, 16);
2463 SHIFT_IM(pslldq, 7);
2464
2465 MOVMSK(movmskps);
2466 MOVMSK(movmskpd);
2467
2468 /* FPU specific ops */
2469
2470 {
2471 uint32_t mxcsr;
2472 asm volatile("stmxcsr %0" : "=m" (mxcsr));
2473 printf("mxcsr=%08x\n", mxcsr & 0x1f80);
2474 asm volatile("ldmxcsr %0" : : "m" (mxcsr));
2475 }
2476
2477 test_sse_comi(2, -1);
2478 test_sse_comi(2, 2);
2479 test_sse_comi(2, 3);
2480 test_sse_comi(2, q_nan.d);
2481 test_sse_comi(q_nan.d, -1);
2482
2483 for(i = 0; i < 2; i++) {
2484 a.s[0] = 2.7;
2485 a.s[1] = 3.4;
2486 a.s[2] = 4;
2487 a.s[3] = -6.3;
2488 b.s[0] = 45.7;
2489 b.s[1] = 353.4;
2490 b.s[2] = 4;
2491 b.s[3] = 56.3;
2492 if (i == 1) {
2493 a.s[0] = q_nan.d;
2494 b.s[3] = q_nan.d;
2495 }
2496
2497 SSE_OPS(add);
2498 SSE_OPS(mul);
2499 SSE_OPS(sub);
2500 SSE_OPS(min);
2501 SSE_OPS(div);
2502 SSE_OPS(max);
2503 SSE_OPS(sqrt);
2504 SSE_OPS(cmpeq);
2505 SSE_OPS(cmplt);
2506 SSE_OPS(cmple);
2507 SSE_OPS(cmpunord);
2508 SSE_OPS(cmpneq);
2509 SSE_OPS(cmpnlt);
2510 SSE_OPS(cmpnle);
2511 SSE_OPS(cmpord);
2512
2513
2514 a.d[0] = 2.7;
2515 a.d[1] = -3.4;
2516 b.d[0] = 45.7;
2517 b.d[1] = -53.4;
2518 if (i == 1) {
2519 a.d[0] = q_nan.d;
2520 b.d[1] = q_nan.d;
2521 }
2522 SSE_OPD(add);
2523 SSE_OPD(mul);
2524 SSE_OPD(sub);
2525 SSE_OPD(min);
2526 SSE_OPD(div);
2527 SSE_OPD(max);
2528 SSE_OPD(sqrt);
2529 SSE_OPD(cmpeq);
2530 SSE_OPD(cmplt);
2531 SSE_OPD(cmple);
2532 SSE_OPD(cmpunord);
2533 SSE_OPD(cmpneq);
2534 SSE_OPD(cmpnlt);
2535 SSE_OPD(cmpnle);
2536 SSE_OPD(cmpord);
2537 }
2538
2539 /* float to float/int */
2540 a.s[0] = 2.7;
2541 a.s[1] = 3.4;
2542 a.s[2] = 4;
2543 a.s[3] = -6.3;
2544 CVT_OP_XMM(cvtps2pd);
2545 CVT_OP_XMM(cvtss2sd);
2546 CVT_OP_XMM2MMX(cvtps2pi);
2547 CVT_OP_XMM2MMX(cvttps2pi);
2548 CVT_OP_XMM2REG(cvtss2si);
2549 CVT_OP_XMM2REG(cvttss2si);
2550 CVT_OP_XMM(cvtps2dq);
2551 CVT_OP_XMM(cvttps2dq);
2552
2553 a.d[0] = 2.6;
2554 a.d[1] = -3.4;
2555 CVT_OP_XMM(cvtpd2ps);
2556 CVT_OP_XMM(cvtsd2ss);
2557 CVT_OP_XMM2MMX(cvtpd2pi);
2558 CVT_OP_XMM2MMX(cvttpd2pi);
2559 CVT_OP_XMM2REG(cvtsd2si);
2560 CVT_OP_XMM2REG(cvttsd2si);
2561 CVT_OP_XMM(cvtpd2dq);
2562 CVT_OP_XMM(cvttpd2dq);
2563
2564 /* sse/mmx moves */
2565 CVT_OP_XMM2MMX(movdq2q);
2566 CVT_OP_MMX2XMM(movq2dq);
2567
2568 /* int to float */
2569 a.l[0] = -6;
2570 a.l[1] = 2;
2571 a.l[2] = 100;
2572 a.l[3] = -60000;
2573 CVT_OP_MMX2XMM(cvtpi2ps);
2574 CVT_OP_MMX2XMM(cvtpi2pd);
2575 CVT_OP_REG2XMM(cvtsi2ss);
2576 CVT_OP_REG2XMM(cvtsi2sd);
2577 CVT_OP_XMM(cvtdq2ps);
2578 CVT_OP_XMM(cvtdq2pd);
2579
2580 /* XXX: test PNI insns */
2581 #if 0
2582 SSE_OP2(movshdup);
2583 #endif
2584 asm volatile ("emms");
2585 }
2586
2587 #endif
2588
2589 #define TEST_CONV_RAX(op)\
2590 {\
2591 unsigned long a, r;\
2592 a = i2l(0x8234a6f8);\
2593 r = a;\
2594 asm volatile(#op : "=a" (r) : "0" (r));\
2595 printf("%-10s A=" FMTLX " R=" FMTLX "\n", #op, a, r);\
2596 }
2597
2598 #define TEST_CONV_RAX_RDX(op)\
2599 {\
2600 unsigned long a, d, r, rh; \
2601 a = i2l(0x8234a6f8);\
2602 d = i2l(0x8345a1f2);\
2603 r = a;\
2604 rh = d;\
2605 asm volatile(#op : "=a" (r), "=d" (rh) : "0" (r), "1" (rh)); \
2606 printf("%-10s A=" FMTLX " R=" FMTLX ":" FMTLX "\n", #op, a, r, rh); \
2607 }
2608
2609 void test_conv(void)
2610 {
2611 TEST_CONV_RAX(cbw);
2612 TEST_CONV_RAX(cwde);
2613 #if defined(__x86_64__)
2614 TEST_CONV_RAX(cdqe);
2615 #endif
2616
2617 TEST_CONV_RAX_RDX(cwd);
2618 TEST_CONV_RAX_RDX(cdq);
2619 #if defined(__x86_64__)
2620 TEST_CONV_RAX_RDX(cqo);
2621 #endif
2622 }
2623
2624 extern void *__start_initcall;
2625 extern void *__stop_initcall;
2626
2627
2628 int main(int argc, char **argv)
2629 {
2630 void **ptr;
2631 void (*func)(void);
2632
2633 ptr = &__start_initcall;
2634 while (ptr != &__stop_initcall) {
2635 func = *ptr++;
2636 func();
2637 }
2638 test_bsx();
2639 test_mul();
2640 test_jcc();
2641 test_floats();
2642 #if !defined(__x86_64__)
2643 test_bcd();
2644 #endif
2645 test_xchg();
2646 test_string();
2647 test_misc();
2648 test_lea();
2649 #ifdef TEST_SEGS
2650 test_segs();
2651 test_code16();
2652 #endif
2653 #ifdef TEST_VM86
2654 test_vm86();
2655 #endif
2656 test_exceptions();
2657 #if !defined(__x86_64__)
2658 test_self_modifying_code();
2659 test_single_step();
2660 #endif
2661 test_enter();
2662 test_conv();
2663 #ifdef TEST_SSE
2664 test_sse();
2665 test_fxsave();
2666 #endif
2667 return 0;
2668 }
Stable branch of Qemu 0.9.1