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[qemu-kvm/fedora.git] / tests / test-i386.c
blobe0dfa6c8ba6fa29c27564a6d89cab880c0011c53
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., 51 Franklin Street - Fifth Floor, Boston,
19 * MA 02110-1301, USA.
20 */
21 #define _GNU_SOURCE
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <string.h>
25 #include <inttypes.h>
26 #include <math.h>
27 #include <signal.h>
28 #include <setjmp.h>
29 #include <errno.h>
30 #include <sys/ucontext.h>
31 #include <sys/mman.h>
32
33 #if !defined(__x86_64__)
34 //#define TEST_VM86
35 #define TEST_SEGS
36 #endif
37 //#define LINUX_VM86_IOPL_FIX
38 //#define TEST_P4_FLAGS
39 #ifdef __SSE__
40 #define TEST_SSE
41 #define TEST_CMOV 1
42 #define TEST_FCOMI 1
43 #else
44 #undef TEST_SSE
45 #define TEST_CMOV 1
46 #define TEST_FCOMI 1
47 #endif
48
49 #if defined(__x86_64__)
50 #define FMT64X "%016lx"
51 #define FMTLX "%016lx"
52 #define X86_64_ONLY(x) x
53 #else
54 #define FMT64X "%016" PRIx64
55 #define FMTLX "%08lx"
56 #define X86_64_ONLY(x)
57 #endif
58
59 #ifdef TEST_VM86
60 #include <asm/vm86.h>
61 #endif
62
63 #define xglue(x, y) x ## y
64 #define glue(x, y) xglue(x, y)
65 #define stringify(s) tostring(s)
66 #define tostring(s) #s
67
68 #define CC_C 0x0001
69 #define CC_P 0x0004
70 #define CC_A 0x0010
71 #define CC_Z 0x0040
72 #define CC_S 0x0080
73 #define CC_O 0x0800
74
75 #define __init_call __attribute__ ((unused,__section__ ("initcall")))
76
77 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
78
79 #if defined(__x86_64__)
80 static inline long i2l(long v)
81 {
82 return v | ((v ^ 0xabcd) << 32);
83 }
84 #else
85 static inline long i2l(long v)
86 {
87 return v;
88 }
89 #endif
90
91 #define OP add
92 #include "test-i386.h"
93
94 #define OP sub
95 #include "test-i386.h"
96
97 #define OP xor
98 #include "test-i386.h"
99
100 #define OP and
101 #include "test-i386.h"
102
103 #define OP or
104 #include "test-i386.h"
105
106 #define OP cmp
107 #include "test-i386.h"
108
109 #define OP adc
110 #define OP_CC
111 #include "test-i386.h"
112
113 #define OP sbb
114 #define OP_CC
115 #include "test-i386.h"
116
117 #define OP inc
118 #define OP_CC
119 #define OP1
120 #include "test-i386.h"
121
122 #define OP dec
123 #define OP_CC
124 #define OP1
125 #include "test-i386.h"
126
127 #define OP neg
128 #define OP_CC
129 #define OP1
130 #include "test-i386.h"
131
132 #define OP not
133 #define OP_CC
134 #define OP1
135 #include "test-i386.h"
136
137 #undef CC_MASK
138 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O)
139
140 #define OP shl
141 #include "test-i386-shift.h"
142
143 #define OP shr
144 #include "test-i386-shift.h"
145
146 #define OP sar
147 #include "test-i386-shift.h"
148
149 #define OP rol
150 #include "test-i386-shift.h"
151
152 #define OP ror
153 #include "test-i386-shift.h"
154
155 #define OP rcr
156 #define OP_CC
157 #include "test-i386-shift.h"
158
159 #define OP rcl
160 #define OP_CC
161 #include "test-i386-shift.h"
162
163 #define OP shld
164 #define OP_SHIFTD
165 #define OP_NOBYTE
166 #include "test-i386-shift.h"
167
168 #define OP shrd
169 #define OP_SHIFTD
170 #define OP_NOBYTE
171 #include "test-i386-shift.h"
172
173 /* XXX: should be more precise ? */
174 #undef CC_MASK
175 #define CC_MASK (CC_C)
176
177 #define OP bt
178 #define OP_NOBYTE
179 #include "test-i386-shift.h"
180
181 #define OP bts
182 #define OP_NOBYTE
183 #include "test-i386-shift.h"
184
185 #define OP btr
186 #define OP_NOBYTE
187 #include "test-i386-shift.h"
188
189 #define OP btc
190 #define OP_NOBYTE
191 #include "test-i386-shift.h"
192
193 /* lea test (modrm support) */
194 #define TEST_LEAQ(STR)\
195 {\
196 asm("lea " STR ", %0"\
197 : "=r" (res)\
198 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
199 printf("lea %s = " FMTLX "\n", STR, res);\
200 }
201
202 #define TEST_LEA(STR)\
203 {\
204 asm("lea " STR ", %0"\
205 : "=r" (res)\
206 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
207 printf("lea %s = " FMTLX "\n", STR, res);\
208 }
209
210 #define TEST_LEA16(STR)\
211 {\
212 asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\
213 : "=wq" (res)\
214 : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\
215 printf("lea %s = %08lx\n", STR, res);\
216 }
217
218
219 void test_lea(void)
220 {
221 long eax, ebx, ecx, edx, esi, edi, res;
222 eax = i2l(0x0001);
223 ebx = i2l(0x0002);
224 ecx = i2l(0x0004);
225 edx = i2l(0x0008);
226 esi = i2l(0x0010);
227 edi = i2l(0x0020);
228
229 TEST_LEA("0x4000");
230
231 TEST_LEA("(%%eax)");
232 TEST_LEA("(%%ebx)");
233 TEST_LEA("(%%ecx)");
234 TEST_LEA("(%%edx)");
235 TEST_LEA("(%%esi)");
236 TEST_LEA("(%%edi)");
237
238 TEST_LEA("0x40(%%eax)");
239 TEST_LEA("0x40(%%ebx)");
240 TEST_LEA("0x40(%%ecx)");
241 TEST_LEA("0x40(%%edx)");
242 TEST_LEA("0x40(%%esi)");
243 TEST_LEA("0x40(%%edi)");
244
245 TEST_LEA("0x4000(%%eax)");
246 TEST_LEA("0x4000(%%ebx)");
247 TEST_LEA("0x4000(%%ecx)");
248 TEST_LEA("0x4000(%%edx)");
249 TEST_LEA("0x4000(%%esi)");
250 TEST_LEA("0x4000(%%edi)");
251
252 TEST_LEA("(%%eax, %%ecx)");
253 TEST_LEA("(%%ebx, %%edx)");
254 TEST_LEA("(%%ecx, %%ecx)");
255 TEST_LEA("(%%edx, %%ecx)");
256 TEST_LEA("(%%esi, %%ecx)");
257 TEST_LEA("(%%edi, %%ecx)");
258
259 TEST_LEA("0x40(%%eax, %%ecx)");
260 TEST_LEA("0x4000(%%ebx, %%edx)");
261
262 TEST_LEA("(%%ecx, %%ecx, 2)");
263 TEST_LEA("(%%edx, %%ecx, 4)");
264 TEST_LEA("(%%esi, %%ecx, 8)");
265
266 TEST_LEA("(,%%eax, 2)");
267 TEST_LEA("(,%%ebx, 4)");
268 TEST_LEA("(,%%ecx, 8)");
269
270 TEST_LEA("0x40(,%%eax, 2)");
271 TEST_LEA("0x40(,%%ebx, 4)");
272 TEST_LEA("0x40(,%%ecx, 8)");
273
274
275 TEST_LEA("-10(%%ecx, %%ecx, 2)");
276 TEST_LEA("-10(%%edx, %%ecx, 4)");
277 TEST_LEA("-10(%%esi, %%ecx, 8)");
278
279 TEST_LEA("0x4000(%%ecx, %%ecx, 2)");
280 TEST_LEA("0x4000(%%edx, %%ecx, 4)");
281 TEST_LEA("0x4000(%%esi, %%ecx, 8)");
282
283 #if defined(__x86_64__)
284 TEST_LEAQ("0x4000");
285 TEST_LEAQ("0x4000(%%rip)");
286
287 TEST_LEAQ("(%%rax)");
288 TEST_LEAQ("(%%rbx)");
289 TEST_LEAQ("(%%rcx)");
290 TEST_LEAQ("(%%rdx)");
291 TEST_LEAQ("(%%rsi)");
292 TEST_LEAQ("(%%rdi)");
293
294 TEST_LEAQ("0x40(%%rax)");
295 TEST_LEAQ("0x40(%%rbx)");
296 TEST_LEAQ("0x40(%%rcx)");
297 TEST_LEAQ("0x40(%%rdx)");
298 TEST_LEAQ("0x40(%%rsi)");
299 TEST_LEAQ("0x40(%%rdi)");
300
301 TEST_LEAQ("0x4000(%%rax)");
302 TEST_LEAQ("0x4000(%%rbx)");
303 TEST_LEAQ("0x4000(%%rcx)");
304 TEST_LEAQ("0x4000(%%rdx)");
305 TEST_LEAQ("0x4000(%%rsi)");
306 TEST_LEAQ("0x4000(%%rdi)");
307
308 TEST_LEAQ("(%%rax, %%rcx)");
309 TEST_LEAQ("(%%rbx, %%rdx)");
310 TEST_LEAQ("(%%rcx, %%rcx)");
311 TEST_LEAQ("(%%rdx, %%rcx)");
312 TEST_LEAQ("(%%rsi, %%rcx)");
313 TEST_LEAQ("(%%rdi, %%rcx)");
314
315 TEST_LEAQ("0x40(%%rax, %%rcx)");
316 TEST_LEAQ("0x4000(%%rbx, %%rdx)");
317
318 TEST_LEAQ("(%%rcx, %%rcx, 2)");
319 TEST_LEAQ("(%%rdx, %%rcx, 4)");
320 TEST_LEAQ("(%%rsi, %%rcx, 8)");
321
322 TEST_LEAQ("(,%%rax, 2)");
323 TEST_LEAQ("(,%%rbx, 4)");
324 TEST_LEAQ("(,%%rcx, 8)");
325
326 TEST_LEAQ("0x40(,%%rax, 2)");
327 TEST_LEAQ("0x40(,%%rbx, 4)");
328 TEST_LEAQ("0x40(,%%rcx, 8)");
329
330
331 TEST_LEAQ("-10(%%rcx, %%rcx, 2)");
332 TEST_LEAQ("-10(%%rdx, %%rcx, 4)");
333 TEST_LEAQ("-10(%%rsi, %%rcx, 8)");
334
335 TEST_LEAQ("0x4000(%%rcx, %%rcx, 2)");
336 TEST_LEAQ("0x4000(%%rdx, %%rcx, 4)");
337 TEST_LEAQ("0x4000(%%rsi, %%rcx, 8)");
338 #else
339 /* limited 16 bit addressing test */
340 TEST_LEA16("0x4000");
341 TEST_LEA16("(%%bx)");
342 TEST_LEA16("(%%si)");
343 TEST_LEA16("(%%di)");
344 TEST_LEA16("0x40(%%bx)");
345 TEST_LEA16("0x40(%%si)");
346 TEST_LEA16("0x40(%%di)");
347 TEST_LEA16("0x4000(%%bx)");
348 TEST_LEA16("0x4000(%%si)");
349 TEST_LEA16("(%%bx,%%si)");
350 TEST_LEA16("(%%bx,%%di)");
351 TEST_LEA16("0x40(%%bx,%%si)");
352 TEST_LEA16("0x40(%%bx,%%di)");
353 TEST_LEA16("0x4000(%%bx,%%si)");
354 TEST_LEA16("0x4000(%%bx,%%di)");
355 #endif
356 }
357
358 #define TEST_JCC(JCC, v1, v2)\
359 {\
360 int res;\
361 asm("movl $1, %0\n\t"\
362 "cmpl %2, %1\n\t"\
363 "j" JCC " 1f\n\t"\
364 "movl $0, %0\n\t"\
365 "1:\n\t"\
366 : "=r" (res)\
367 : "r" (v1), "r" (v2));\
368 printf("%-10s %d\n", "j" JCC, res);\
369 \
370 asm("movl $0, %0\n\t"\
371 "cmpl %2, %1\n\t"\
372 "set" JCC " %b0\n\t"\
373 : "=r" (res)\
374 : "r" (v1), "r" (v2));\
375 printf("%-10s %d\n", "set" JCC, res);\
376 if (TEST_CMOV) {\
377 long val = i2l(1);\
378 long res = i2l(0x12345678);\
379 X86_64_ONLY(\
380 asm("cmpl %2, %1\n\t"\
381 "cmov" JCC "q %3, %0\n\t"\
382 : "=r" (res)\
383 : "r" (v1), "r" (v2), "m" (val), "0" (res));\
384 printf("%-10s R=" FMTLX "\n", "cmov" JCC "q", res);)\
385 asm("cmpl %2, %1\n\t"\
386 "cmov" JCC "l %k3, %k0\n\t"\
387 : "=r" (res)\
388 : "r" (v1), "r" (v2), "m" (val), "0" (res));\
389 printf("%-10s R=" FMTLX "\n", "cmov" JCC "l", res);\
390 asm("cmpl %2, %1\n\t"\
391 "cmov" JCC "w %w3, %w0\n\t"\
392 : "=r" (res)\
393 : "r" (v1), "r" (v2), "r" (1), "0" (res));\
394 printf("%-10s R=" FMTLX "\n", "cmov" JCC "w", res);\
395 } \
396 }
397
398 /* various jump tests */
399 void test_jcc(void)
400 {
401 TEST_JCC("ne", 1, 1);
402 TEST_JCC("ne", 1, 0);
403
404 TEST_JCC("e", 1, 1);
405 TEST_JCC("e", 1, 0);
406
407 TEST_JCC("l", 1, 1);
408 TEST_JCC("l", 1, 0);
409 TEST_JCC("l", 1, -1);
410
411 TEST_JCC("le", 1, 1);
412 TEST_JCC("le", 1, 0);
413 TEST_JCC("le", 1, -1);
414
415 TEST_JCC("ge", 1, 1);
416 TEST_JCC("ge", 1, 0);
417 TEST_JCC("ge", -1, 1);
418
419 TEST_JCC("g", 1, 1);
420 TEST_JCC("g", 1, 0);
421 TEST_JCC("g", 1, -1);
422
423 TEST_JCC("b", 1, 1);
424 TEST_JCC("b", 1, 0);
425 TEST_JCC("b", 1, -1);
426
427 TEST_JCC("be", 1, 1);
428 TEST_JCC("be", 1, 0);
429 TEST_JCC("be", 1, -1);
430
431 TEST_JCC("ae", 1, 1);
432 TEST_JCC("ae", 1, 0);
433 TEST_JCC("ae", 1, -1);
434
435 TEST_JCC("a", 1, 1);
436 TEST_JCC("a", 1, 0);
437 TEST_JCC("a", 1, -1);
438
439
440 TEST_JCC("p", 1, 1);
441 TEST_JCC("p", 1, 0);
442
443 TEST_JCC("np", 1, 1);
444 TEST_JCC("np", 1, 0);
445
446 TEST_JCC("o", 0x7fffffff, 0);
447 TEST_JCC("o", 0x7fffffff, -1);
448
449 TEST_JCC("no", 0x7fffffff, 0);
450 TEST_JCC("no", 0x7fffffff, -1);
451
452 TEST_JCC("s", 0, 1);
453 TEST_JCC("s", 0, -1);
454 TEST_JCC("s", 0, 0);
455
456 TEST_JCC("ns", 0, 1);
457 TEST_JCC("ns", 0, -1);
458 TEST_JCC("ns", 0, 0);
459 }
460
461 #define TEST_LOOP(insn) \
462 {\
463 for(i = 0; i < sizeof(ecx_vals) / sizeof(long); i++) {\
464 ecx = ecx_vals[i];\
465 for(zf = 0; zf < 2; zf++) {\
466 asm("test %2, %2\n\t"\
467 "movl $1, %0\n\t"\
468 insn " 1f\n\t" \
469 "movl $0, %0\n\t"\
470 "1:\n\t"\
471 : "=a" (res)\
472 : "c" (ecx), "b" (!zf)); \
473 printf("%-10s ECX=" FMTLX " ZF=%ld r=%d\n", insn, ecx, zf, res); \
474 }\
475 }\
476 }
477
478 void test_loop(void)
479 {
480 long ecx, zf;
481 const long ecx_vals[] = {
482 0,
483 1,
484 0x10000,
485 0x10001,
486 #if defined(__x86_64__)
487 0x100000000L,
488 0x100000001L,
489 #endif
490 };
491 int i, res;
492
493 #if !defined(__x86_64__)
494 TEST_LOOP("jcxz");
495 TEST_LOOP("loopw");
496 TEST_LOOP("loopzw");
497 TEST_LOOP("loopnzw");
498 #endif
499
500 TEST_LOOP("jecxz");
501 TEST_LOOP("loopl");
502 TEST_LOOP("loopzl");
503 TEST_LOOP("loopnzl");
504 }
505
506 #undef CC_MASK
507 #ifdef TEST_P4_FLAGS
508 #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)
509 #else
510 #define CC_MASK (CC_O | CC_C)
511 #endif
512
513 #define OP mul
514 #include "test-i386-muldiv.h"
515
516 #define OP imul
517 #include "test-i386-muldiv.h"
518
519 void test_imulw2(long op0, long op1)
520 {
521 long res, s1, s0, flags;
522 s0 = op0;
523 s1 = op1;
524 res = s0;
525 flags = 0;
526 asm volatile ("push %4\n\t"
527 "popf\n\t"
528 "imulw %w2, %w0\n\t"
529 "pushf\n\t"
530 "pop %1\n\t"
531 : "=q" (res), "=g" (flags)
532 : "q" (s1), "0" (res), "1" (flags));
533 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
534 "imulw", s0, s1, res, flags & CC_MASK);
535 }
536
537 void test_imull2(long op0, long op1)
538 {
539 long res, s1, s0, flags;
540 s0 = op0;
541 s1 = op1;
542 res = s0;
543 flags = 0;
544 asm volatile ("push %4\n\t"
545 "popf\n\t"
546 "imull %k2, %k0\n\t"
547 "pushf\n\t"
548 "pop %1\n\t"
549 : "=q" (res), "=g" (flags)
550 : "q" (s1), "0" (res), "1" (flags));
551 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
552 "imull", s0, s1, res, flags & CC_MASK);
553 }
554
555 #if defined(__x86_64__)
556 void test_imulq2(long op0, long op1)
557 {
558 long res, s1, s0, flags;
559 s0 = op0;
560 s1 = op1;
561 res = s0;
562 flags = 0;
563 asm volatile ("push %4\n\t"
564 "popf\n\t"
565 "imulq %2, %0\n\t"
566 "pushf\n\t"
567 "pop %1\n\t"
568 : "=q" (res), "=g" (flags)
569 : "q" (s1), "0" (res), "1" (flags));
570 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",
571 "imulq", s0, s1, res, flags & CC_MASK);
572 }
573 #endif
574
575 #define TEST_IMUL_IM(size, rsize, op0, op1)\
576 {\
577 long res, flags, s1;\
578 flags = 0;\
579 res = 0;\
580 s1 = op1;\
581 asm volatile ("push %3\n\t"\
582 "popf\n\t"\
583 "imul" size " $" #op0 ", %" rsize "2, %" rsize "0\n\t" \
584 "pushf\n\t"\
585 "pop %1\n\t"\
586 : "=r" (res), "=g" (flags)\
587 : "r" (s1), "1" (flags), "0" (res));\
588 printf("%-10s A=" FMTLX " B=" FMTLX " R=" FMTLX " CC=%04lx\n",\
589 "imul" size " im", (long)op0, (long)op1, res, flags & CC_MASK);\
590 }
591
592
593 #undef CC_MASK
594 #define CC_MASK (0)
595
596 #define OP div
597 #include "test-i386-muldiv.h"
598
599 #define OP idiv
600 #include "test-i386-muldiv.h"
601
602 void test_mul(void)
603 {
604 test_imulb(0x1234561d, 4);
605 test_imulb(3, -4);
606 test_imulb(0x80, 0x80);
607 test_imulb(0x10, 0x10);
608
609 test_imulw(0, 0x1234001d, 45);
610 test_imulw(0, 23, -45);
611 test_imulw(0, 0x8000, 0x8000);
612 test_imulw(0, 0x100, 0x100);
613
614 test_imull(0, 0x1234001d, 45);
615 test_imull(0, 23, -45);
616 test_imull(0, 0x80000000, 0x80000000);
617 test_imull(0, 0x10000, 0x10000);
618
619 test_mulb(0x1234561d, 4);
620 test_mulb(3, -4);
621 test_mulb(0x80, 0x80);
622 test_mulb(0x10, 0x10);
623
624 test_mulw(0, 0x1234001d, 45);
625 test_mulw(0, 23, -45);
626 test_mulw(0, 0x8000, 0x8000);
627 test_mulw(0, 0x100, 0x100);
628
629 test_mull(0, 0x1234001d, 45);
630 test_mull(0, 23, -45);
631 test_mull(0, 0x80000000, 0x80000000);
632 test_mull(0, 0x10000, 0x10000);
633
634 test_imulw2(0x1234001d, 45);
635 test_imulw2(23, -45);
636 test_imulw2(0x8000, 0x8000);
637 test_imulw2(0x100, 0x100);
638
639 test_imull2(0x1234001d, 45);
640 test_imull2(23, -45);
641 test_imull2(0x80000000, 0x80000000);
642 test_imull2(0x10000, 0x10000);
643
644 TEST_IMUL_IM("w", "w", 45, 0x1234);
645 TEST_IMUL_IM("w", "w", -45, 23);
646 TEST_IMUL_IM("w", "w", 0x8000, 0x80000000);
647 TEST_IMUL_IM("w", "w", 0x7fff, 0x1000);
648
649 TEST_IMUL_IM("l", "k", 45, 0x1234);
650 TEST_IMUL_IM("l", "k", -45, 23);
651 TEST_IMUL_IM("l", "k", 0x8000, 0x80000000);
652 TEST_IMUL_IM("l", "k", 0x7fff, 0x1000);
653
654 test_idivb(0x12341678, 0x127e);
655 test_idivb(0x43210123, -5);
656 test_idivb(0x12340004, -1);
657
658 test_idivw(0, 0x12345678, 12347);
659 test_idivw(0, -23223, -45);
660 test_idivw(0, 0x12348000, -1);
661 test_idivw(0x12343, 0x12345678, 0x81238567);
662
663 test_idivl(0, 0x12345678, 12347);
664 test_idivl(0, -233223, -45);
665 test_idivl(0, 0x80000000, -1);
666 test_idivl(0x12343, 0x12345678, 0x81234567);
667
668 test_divb(0x12341678, 0x127e);
669 test_divb(0x43210123, -5);
670 test_divb(0x12340004, -1);
671
672 test_divw(0, 0x12345678, 12347);
673 test_divw(0, -23223, -45);
674 test_divw(0, 0x12348000, -1);
675 test_divw(0x12343, 0x12345678, 0x81238567);
676
677 test_divl(0, 0x12345678, 12347);
678 test_divl(0, -233223, -45);
679 test_divl(0, 0x80000000, -1);
680 test_divl(0x12343, 0x12345678, 0x81234567);
681
682 #if defined(__x86_64__)
683 test_imulq(0, 0x1234001d1234001d, 45);
684 test_imulq(0, 23, -45);
685 test_imulq(0, 0x8000000000000000, 0x8000000000000000);
686 test_imulq(0, 0x100000000, 0x100000000);
687
688 test_mulq(0, 0x1234001d1234001d, 45);
689 test_mulq(0, 23, -45);
690 test_mulq(0, 0x8000000000000000, 0x8000000000000000);
691 test_mulq(0, 0x100000000, 0x100000000);
692
693 test_imulq2(0x1234001d1234001d, 45);
694 test_imulq2(23, -45);
695 test_imulq2(0x8000000000000000, 0x8000000000000000);
696 test_imulq2(0x100000000, 0x100000000);
697
698 TEST_IMUL_IM("q", "", 45, 0x12341234);
699 TEST_IMUL_IM("q", "", -45, 23);
700 TEST_IMUL_IM("q", "", 0x8000, 0x8000000000000000);
701 TEST_IMUL_IM("q", "", 0x7fff, 0x10000000);
702
703 test_idivq(0, 0x12345678abcdef, 12347);
704 test_idivq(0, -233223, -45);
705 test_idivq(0, 0x8000000000000000, -1);
706 test_idivq(0x12343, 0x12345678, 0x81234567);
707
708 test_divq(0, 0x12345678abcdef, 12347);
709 test_divq(0, -233223, -45);
710 test_divq(0, 0x8000000000000000, -1);
711 test_divq(0x12343, 0x12345678, 0x81234567);
712 #endif
713 }
714
715 #define TEST_BSX(op, size, op0)\
716 {\
717 long res, val, resz;\
718 val = op0;\
719 asm("xor %1, %1\n"\
720 "mov $0x12345678, %0\n"\
721 #op " %" size "2, %" size "0 ; setz %b1" \
722 : "=&r" (res), "=&q" (resz)\
723 : "r" (val));\
724 printf("%-10s A=" FMTLX " R=" FMTLX " %ld\n", #op, val, res, resz);\
725 }
726
727 void test_bsx(void)
728 {
729 TEST_BSX(bsrw, "w", 0);
730 TEST_BSX(bsrw, "w", 0x12340128);
731 TEST_BSX(bsfw, "w", 0);
732 TEST_BSX(bsfw, "w", 0x12340128);
733 TEST_BSX(bsrl, "k", 0);
734 TEST_BSX(bsrl, "k", 0x00340128);
735 TEST_BSX(bsfl, "k", 0);
736 TEST_BSX(bsfl, "k", 0x00340128);
737 #if defined(__x86_64__)
738 TEST_BSX(bsrq, "", 0);
739 TEST_BSX(bsrq, "", 0x003401281234);
740 TEST_BSX(bsfq, "", 0);
741 TEST_BSX(bsfq, "", 0x003401281234);
742 #endif
743 }
744
745 /**********************************************/
746
747 union float64u {
748 double d;
749 uint64_t l;
750 };
751
752 union float64u q_nan = { .l = 0xFFF8000000000000LL };
753 union float64u s_nan = { .l = 0xFFF0000000000000LL };
754
755 void test_fops(double a, double b)
756 {
757 printf("a=%f b=%f a+b=%f\n", a, b, a + b);
758 printf("a=%f b=%f a-b=%f\n", a, b, a - b);
759 printf("a=%f b=%f a*b=%f\n", a, b, a * b);
760 printf("a=%f b=%f a/b=%f\n", a, b, a / b);
761 printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b));
762 printf("a=%f sqrt(a)=%f\n", a, sqrt(a));
763 printf("a=%f sin(a)=%f\n", a, sin(a));
764 printf("a=%f cos(a)=%f\n", a, cos(a));
765 printf("a=%f tan(a)=%f\n", a, tan(a));
766 printf("a=%f log(a)=%f\n", a, log(a));
767 printf("a=%f exp(a)=%f\n", a, exp(a));
768 printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b));
769 /* just to test some op combining */
770 printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a)));
771 printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a)));
772 printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a)));
773
774 }
775
776 void fpu_clear_exceptions(void)
777 {
778 struct __attribute__((packed)) {
779 uint16_t fpuc;
780 uint16_t dummy1;
781 uint16_t fpus;
782 uint16_t dummy2;
783 uint16_t fptag;
784 uint16_t dummy3;
785 uint32_t ignored[4];
786 long double fpregs[8];
787 } float_env32;
788
789 asm volatile ("fnstenv %0\n" : : "m" (float_env32));
790 float_env32.fpus &= ~0x7f;
791 asm volatile ("fldenv %0\n" : : "m" (float_env32));
792 }
793
794 /* XXX: display exception bits when supported */
795 #define FPUS_EMASK 0x0000
796 //#define FPUS_EMASK 0x007f
797
798 void test_fcmp(double a, double b)
799 {
800 long eflags, fpus;
801
802 fpu_clear_exceptions();
803 asm("fcom %2\n"
804 "fstsw %%ax\n"
805 : "=a" (fpus)
806 : "t" (a), "u" (b));
807 printf("fcom(%f %f)=%04lx \n",
808 a, b, fpus & (0x4500 | FPUS_EMASK));
809 fpu_clear_exceptions();
810 asm("fucom %2\n"
811 "fstsw %%ax\n"
812 : "=a" (fpus)
813 : "t" (a), "u" (b));
814 printf("fucom(%f %f)=%04lx\n",
815 a, b, fpus & (0x4500 | FPUS_EMASK));
816 if (TEST_FCOMI) {
817 /* test f(u)comi instruction */
818 fpu_clear_exceptions();
819 asm("fcomi %3, %2\n"
820 "fstsw %%ax\n"
821 "pushf\n"
822 "pop %0\n"
823 : "=r" (eflags), "=a" (fpus)
824 : "t" (a), "u" (b));
825 printf("fcomi(%f %f)=%04lx %02lx\n",
826 a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C));
827 fpu_clear_exceptions();
828 asm("fucomi %3, %2\n"
829 "fstsw %%ax\n"
830 "pushf\n"
831 "pop %0\n"
832 : "=r" (eflags), "=a" (fpus)
833 : "t" (a), "u" (b));
834 printf("fucomi(%f %f)=%04lx %02lx\n",
835 a, b, fpus & FPUS_EMASK, eflags & (CC_Z | CC_P | CC_C));
836 }
837 fpu_clear_exceptions();
838 asm volatile("fxam\n"
839 "fstsw %%ax\n"
840 : "=a" (fpus)
841 : "t" (a));
842 printf("fxam(%f)=%04lx\n", a, fpus & 0x4700);
843 fpu_clear_exceptions();
844 }
845
846 void test_fcvt(double a)
847 {
848 float fa;
849 long double la;
850 int16_t fpuc;
851 int i;
852 int64_t lla;
853 int ia;
854 int16_t wa;
855 double ra;
856
857 fa = a;
858 la = a;
859 printf("(float)%f = %f\n", a, fa);
860 printf("(long double)%f = %Lf\n", a, la);
861 printf("a=" FMT64X "\n", *(uint64_t *)&a);
862 printf("la=" FMT64X " %04x\n", *(uint64_t *)&la,
863 *(unsigned short *)((char *)(&la) + 8));
864
865 /* test all roundings */
866 asm volatile ("fstcw %0" : "=m" (fpuc));
867 for(i=0;i<4;i++) {
868 uint16_t val16;
869 val16 = (fpuc & ~0x0c00) | (i << 10);
870 asm volatile ("fldcw %0" : : "m" (val16));
871 asm volatile ("fist %0" : "=m" (wa) : "t" (a));
872 asm volatile ("fistl %0" : "=m" (ia) : "t" (a));
873 asm volatile ("fistpll %0" : "=m" (lla) : "t" (a) : "st");
874 asm volatile ("frndint ; fstl %0" : "=m" (ra) : "t" (a));
875 asm volatile ("fldcw %0" : : "m" (fpuc));
876 printf("(short)a = %d\n", wa);
877 printf("(int)a = %d\n", ia);
878 printf("(int64_t)a = " FMT64X "\n", lla);
879 printf("rint(a) = %f\n", ra);
880 }
881 }
882
883 #define TEST(N) \
884 asm("fld" #N : "=t" (a)); \
885 printf("fld" #N "= %f\n", a);
886
887 void test_fconst(void)
888 {
889 double a;
890 TEST(1);
891 TEST(l2t);
892 TEST(l2e);
893 TEST(pi);
894 TEST(lg2);
895 TEST(ln2);
896 TEST(z);
897 }
898
899 void test_fbcd(double a)
900 {
901 unsigned short bcd[5];
902 double b;
903
904 asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st");
905 asm("fbld %1" : "=t" (b) : "m" (bcd[0]));
906 printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n",
907 a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b);
908 }
909
910 #define TEST_ENV(env, save, restore)\
911 {\
912 memset((env), 0xaa, sizeof(*(env)));\
913 for(i=0;i<5;i++)\
914 asm volatile ("fldl %0" : : "m" (dtab[i]));\
915 asm volatile (save " %0\n" : : "m" (*(env)));\
916 asm volatile (restore " %0\n": : "m" (*(env)));\
917 for(i=0;i<5;i++)\
918 asm volatile ("fstpl %0" : "=m" (rtab[i]));\
919 for(i=0;i<5;i++)\
920 printf("res[%d]=%f\n", i, rtab[i]);\
921 printf("fpuc=%04x fpus=%04x fptag=%04x\n",\
922 (env)->fpuc,\
923 (env)->fpus & 0xff00,\
924 (env)->fptag);\
925 }
926
927 void test_fenv(void)
928 {
929 struct __attribute__((packed)) {
930 uint16_t fpuc;
931 uint16_t dummy1;
932 uint16_t fpus;
933 uint16_t dummy2;
934 uint16_t fptag;
935 uint16_t dummy3;
936 uint32_t ignored[4];
937 long double fpregs[8];
938 } float_env32;
939 struct __attribute__((packed)) {
940 uint16_t fpuc;
941 uint16_t fpus;
942 uint16_t fptag;
943 uint16_t ignored[4];
944 long double fpregs[8];
945 } float_env16;
946 double dtab[8];
947 double rtab[8];
948 int i;
949
950 for(i=0;i<8;i++)
951 dtab[i] = i + 1;
952
953 TEST_ENV(&float_env16, "data16 fnstenv", "data16 fldenv");
954 TEST_ENV(&float_env16, "data16 fnsave", "data16 frstor");
955 TEST_ENV(&float_env32, "fnstenv", "fldenv");
956 TEST_ENV(&float_env32, "fnsave", "frstor");
957
958 /* test for ffree */
959 for(i=0;i<5;i++)
960 asm volatile ("fldl %0" : : "m" (dtab[i]));
961 asm volatile("ffree %st(2)");
962 asm volatile ("fnstenv %0\n" : : "m" (float_env32));
963 asm volatile ("fninit");
964 printf("fptag=%04x\n", float_env32.fptag);
965 }
966
967
968 #define TEST_FCMOV(a, b, eflags, CC)\
969 {\
970 double res;\
971 asm("push %3\n"\
972 "popf\n"\
973 "fcmov" CC " %2, %0\n"\
974 : "=t" (res)\
975 : "0" (a), "u" (b), "g" (eflags));\
976 printf("fcmov%s eflags=0x%04lx-> %f\n", \
977 CC, (long)eflags, res);\
978 }
979
980 void test_fcmov(void)
981 {
982 double a, b;
983 long eflags, i;
984
985 a = 1.0;
986 b = 2.0;
987 for(i = 0; i < 4; i++) {
988 eflags = 0;
989 if (i & 1)
990 eflags |= CC_C;
991 if (i & 2)
992 eflags |= CC_Z;
993 TEST_FCMOV(a, b, eflags, "b");
994 TEST_FCMOV(a, b, eflags, "e");
995 TEST_FCMOV(a, b, eflags, "be");
996 TEST_FCMOV(a, b, eflags, "nb");
997 TEST_FCMOV(a, b, eflags, "ne");
998 TEST_FCMOV(a, b, eflags, "nbe");
999 }
1000 TEST_FCMOV(a, b, 0, "u");
1001 TEST_FCMOV(a, b, CC_P, "u");
1002 TEST_FCMOV(a, b, 0, "nu");
1003 TEST_FCMOV(a, b, CC_P, "nu");
1004 }
1005
1006 void test_floats(void)
1007 {
1008 test_fops(2, 3);
1009 test_fops(1.4, -5);
1010 test_fcmp(2, -1);
1011 test_fcmp(2, 2);
1012 test_fcmp(2, 3);
1013 test_fcmp(2, q_nan.d);
1014 test_fcmp(q_nan.d, -1);
1015 test_fcmp(-1.0/0.0, -1);
1016 test_fcmp(1.0/0.0, -1);
1017 test_fcvt(0.5);
1018 test_fcvt(-0.5);
1019 test_fcvt(1.0/7.0);
1020 test_fcvt(-1.0/9.0);
1021 test_fcvt(32768);
1022 test_fcvt(-1e20);
1023 test_fcvt(-1.0/0.0);
1024 test_fcvt(1.0/0.0);
1025 test_fcvt(q_nan.d);
1026 test_fconst();
1027 test_fbcd(1234567890123456.0);
1028 test_fbcd(-123451234567890.0);
1029 test_fenv();
1030 if (TEST_CMOV) {
1031 test_fcmov();
1032 }
1033 }
1034
1035 /**********************************************/
1036 #if !defined(__x86_64__)
1037
1038 #define TEST_BCD(op, op0, cc_in, cc_mask)\
1039 {\
1040 int res, flags;\
1041 res = op0;\
1042 flags = cc_in;\
1043 asm ("push %3\n\t"\
1044 "popf\n\t"\
1045 #op "\n\t"\
1046 "pushf\n\t"\
1047 "pop %1\n\t"\
1048 : "=a" (res), "=g" (flags)\
1049 : "0" (res), "1" (flags));\
1050 printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\
1051 #op, op0, res, cc_in, flags & cc_mask);\
1052 }
1053
1054 void test_bcd(void)
1055 {
1056 TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1057 TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1058 TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1059 TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1060 TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1061 TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1062 TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1063 TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1064 TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1065 TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1066 TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1067 TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1068 TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1069
1070 TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1071 TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1072 TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1073 TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1074 TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1075 TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1076 TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1077 TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1078 TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1079 TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1080 TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1081 TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1082 TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A));
1083
1084 TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A));
1085 TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A));
1086 TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A));
1087 TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A));
1088 TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A));
1089 TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A));
1090 TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A));
1091 TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A));
1092
1093 TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A));
1094 TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A));
1095 TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A));
1096 TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A));
1097 TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A));
1098 TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A));
1099 TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A));
1100 TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A));
1101
1102 TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
1103 TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));
1104 }
1105 #endif
1106
1107 #define TEST_XCHG(op, size, opconst)\
1108 {\
1109 long op0, op1;\
1110 op0 = i2l(0x12345678);\
1111 op1 = i2l(0xfbca7654);\
1112 asm(#op " %" size "0, %" size "1" \
1113 : "=q" (op0), opconst (op1) \
1114 : "0" (op0));\
1115 printf("%-10s A=" FMTLX " B=" FMTLX "\n",\
1116 #op, op0, op1);\
1117 }
1118
1119 #define TEST_CMPXCHG(op, size, opconst, eax)\
1120 {\
1121 long op0, op1, op2;\
1122 op0 = i2l(0x12345678);\
1123 op1 = i2l(0xfbca7654);\
1124 op2 = i2l(eax);\
1125 asm(#op " %" size "0, %" size "1" \
1126 : "=q" (op0), opconst (op1) \
1127 : "0" (op0), "a" (op2));\
1128 printf("%-10s EAX=" FMTLX " A=" FMTLX " C=" FMTLX "\n",\
1129 #op, op2, op0, op1);\
1130 }
1131
1132 void test_xchg(void)
1133 {
1134 #if defined(__x86_64__)
1135 TEST_XCHG(xchgq, "", "+q");
1136 #endif
1137 TEST_XCHG(xchgl, "k", "+q");
1138 TEST_XCHG(xchgw, "w", "+q");
1139 TEST_XCHG(xchgb, "b", "+q");
1140
1141 #if defined(__x86_64__)
1142 TEST_XCHG(xchgq, "", "=m");
1143 #endif
1144 TEST_XCHG(xchgl, "k", "+m");
1145 TEST_XCHG(xchgw, "w", "+m");
1146 TEST_XCHG(xchgb, "b", "+m");
1147
1148 #if defined(__x86_64__)
1149 TEST_XCHG(xaddq, "", "+q");
1150 #endif
1151 TEST_XCHG(xaddl, "k", "+q");
1152 TEST_XCHG(xaddw, "w", "+q");
1153 TEST_XCHG(xaddb, "b", "+q");
1154
1155 {
1156 int res;
1157 res = 0x12345678;
1158 asm("xaddl %1, %0" : "=r" (res) : "0" (res));
1159 printf("xaddl same res=%08x\n", res);
1160 }
1161
1162 #if defined(__x86_64__)
1163 TEST_XCHG(xaddq, "", "+m");
1164 #endif
1165 TEST_XCHG(xaddl, "k", "+m");
1166 TEST_XCHG(xaddw, "w", "+m");
1167 TEST_XCHG(xaddb, "b", "+m");
1168
1169 #if defined(__x86_64__)
1170 TEST_CMPXCHG(cmpxchgq, "", "+q", 0xfbca7654);
1171 #endif
1172 TEST_CMPXCHG(cmpxchgl, "k", "+q", 0xfbca7654);
1173 TEST_CMPXCHG(cmpxchgw, "w", "+q", 0xfbca7654);
1174 TEST_CMPXCHG(cmpxchgb, "b", "+q", 0xfbca7654);
1175
1176 #if defined(__x86_64__)
1177 TEST_CMPXCHG(cmpxchgq, "", "+q", 0xfffefdfc);
1178 #endif
1179 TEST_CMPXCHG(cmpxchgl, "k", "+q", 0xfffefdfc);
1180 TEST_CMPXCHG(cmpxchgw, "w", "+q", 0xfffefdfc);
1181 TEST_CMPXCHG(cmpxchgb, "b", "+q", 0xfffefdfc);
1182
1183 #if defined(__x86_64__)
1184 TEST_CMPXCHG(cmpxchgq, "", "+m", 0xfbca7654);
1185 #endif
1186 TEST_CMPXCHG(cmpxchgl, "k", "+m", 0xfbca7654);
1187 TEST_CMPXCHG(cmpxchgw, "w", "+m", 0xfbca7654);
1188 TEST_CMPXCHG(cmpxchgb, "b", "+m", 0xfbca7654);
1189
1190 #if defined(__x86_64__)
1191 TEST_CMPXCHG(cmpxchgq, "", "+m", 0xfffefdfc);
1192 #endif
1193 TEST_CMPXCHG(cmpxchgl, "k", "+m", 0xfffefdfc);
1194 TEST_CMPXCHG(cmpxchgw, "w", "+m", 0xfffefdfc);
1195 TEST_CMPXCHG(cmpxchgb, "b", "+m", 0xfffefdfc);
1196
1197 {
1198 uint64_t op0, op1, op2;
1199 long eax, edx;
1200 long i, eflags;
1201
1202 for(i = 0; i < 2; i++) {
1203 op0 = 0x123456789abcdLL;
1204 eax = i2l(op0 & 0xffffffff);
1205 edx = i2l(op0 >> 32);
1206 if (i == 0)
1207 op1 = 0xfbca765423456LL;
1208 else
1209 op1 = op0;
1210 op2 = 0x6532432432434LL;
1211 asm("cmpxchg8b %2\n"
1212 "pushf\n"
1213 "pop %3\n"
1214 : "=a" (eax), "=d" (edx), "=m" (op1), "=g" (eflags)
1215 : "0" (eax), "1" (edx), "m" (op1), "b" ((int)op2), "c" ((int)(op2 >> 32)));
1216 printf("cmpxchg8b: eax=" FMTLX " edx=" FMTLX " op1=" FMT64X " CC=%02lx\n",
1217 eax, edx, op1, eflags & CC_Z);
1218 }
1219 }
1220 }
1221
1222 #ifdef TEST_SEGS
1223 /**********************************************/
1224 /* segmentation tests */
1225
1226 #include <sys/syscall.h>
1227 #include <unistd.h>
1228 #include <asm/ldt.h>
1229 #include <linux/version.h>
1230
1231 static inline int modify_ldt(int func, void * ptr, unsigned long bytecount)
1232 {
1233 return syscall(__NR_modify_ldt, func, ptr, bytecount);
1234 }
1235
1236 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 66)
1237 #define modify_ldt_ldt_s user_desc
1238 #endif
1239
1240 #define MK_SEL(n) (((n) << 3) | 7)
1241
1242 uint8_t seg_data1[4096];
1243 uint8_t seg_data2[4096];
1244
1245 #define TEST_LR(op, size, seg, mask)\
1246 {\
1247 int res, res2;\
1248 uint16_t mseg = seg;\
1249 res = 0x12345678;\
1250 asm (op " %" size "2, %" size "0\n" \
1251 "movl $0, %1\n"\
1252 "jnz 1f\n"\
1253 "movl $1, %1\n"\
1254 "1:\n"\
1255 : "=r" (res), "=r" (res2) : "m" (mseg), "0" (res));\
1256 printf(op ": Z=%d %08x\n", res2, res & ~(mask));\
1257 }
1258
1259 #define TEST_ARPL(op, size, op1, op2)\
1260 {\
1261 long a, b, c; \
1262 a = (op1); \
1263 b = (op2); \
1264 asm volatile(op " %" size "3, %" size "0\n"\
1265 "movl $0,%1\n"\
1266 "jnz 1f\n"\
1267 "movl $1,%1\n"\
1268 "1:\n"\
1269 : "=r" (a), "=r" (c) : "0" (a), "r" (b)); \
1270 printf(op size " A=" FMTLX " B=" FMTLX " R=" FMTLX " z=%ld\n",\
1271 (long)(op1), (long)(op2), a, c);\
1272 }
1273
1274 /* NOTE: we use Linux modify_ldt syscall */
1275 void test_segs(void)
1276 {
1277 struct modify_ldt_ldt_s ldt;
1278 long long ldt_table[3];
1279 int res, res2;
1280 char tmp;
1281 struct {
1282 uint32_t offset;
1283 uint16_t seg;
1284 } __attribute__((packed)) segoff;
1285
1286 ldt.entry_number = 1;
1287 ldt.base_addr = (unsigned long)&seg_data1;
1288 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
1289 ldt.seg_32bit = 1;
1290 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1291 ldt.read_exec_only = 0;
1292 ldt.limit_in_pages = 1;
1293 ldt.seg_not_present = 0;
1294 ldt.useable = 1;
1295 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1296
1297 ldt.entry_number = 2;
1298 ldt.base_addr = (unsigned long)&seg_data2;
1299 ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12;
1300 ldt.seg_32bit = 1;
1301 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1302 ldt.read_exec_only = 0;
1303 ldt.limit_in_pages = 1;
1304 ldt.seg_not_present = 0;
1305 ldt.useable = 1;
1306 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1307
1308 modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */
1309 #if 0
1310 {
1311 int i;
1312 for(i=0;i<3;i++)
1313 printf("%d: %016Lx\n", i, ldt_table[i]);
1314 }
1315 #endif
1316 /* do some tests with fs or gs */
1317 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
1318
1319 seg_data1[1] = 0xaa;
1320 seg_data2[1] = 0x55;
1321
1322 asm volatile ("fs movzbl 0x1, %0" : "=r" (res));
1323 printf("FS[1] = %02x\n", res);
1324
1325 asm volatile ("pushl %%gs\n"
1326 "movl %1, %%gs\n"
1327 "gs movzbl 0x1, %0\n"
1328 "popl %%gs\n"
1329 : "=r" (res)
1330 : "r" (MK_SEL(2)));
1331 printf("GS[1] = %02x\n", res);
1332
1333 /* tests with ds/ss (implicit segment case) */
1334 tmp = 0xa5;
1335 asm volatile ("pushl %%ebp\n\t"
1336 "pushl %%ds\n\t"
1337 "movl %2, %%ds\n\t"
1338 "movl %3, %%ebp\n\t"
1339 "movzbl 0x1, %0\n\t"
1340 "movzbl (%%ebp), %1\n\t"
1341 "popl %%ds\n\t"
1342 "popl %%ebp\n\t"
1343 : "=r" (res), "=r" (res2)
1344 : "r" (MK_SEL(1)), "r" (&tmp));
1345 printf("DS[1] = %02x\n", res);
1346 printf("SS[tmp] = %02x\n", res2);
1347
1348 segoff.seg = MK_SEL(2);
1349 segoff.offset = 0xabcdef12;
1350 asm volatile("lfs %2, %0\n\t"
1351 "movl %%fs, %1\n\t"
1352 : "=r" (res), "=g" (res2)
1353 : "m" (segoff));
1354 printf("FS:reg = %04x:%08x\n", res2, res);
1355
1356 TEST_LR("larw", "w", MK_SEL(2), 0x0100);
1357 TEST_LR("larl", "", MK_SEL(2), 0x0100);
1358 TEST_LR("lslw", "w", MK_SEL(2), 0);
1359 TEST_LR("lsll", "", MK_SEL(2), 0);
1360
1361 TEST_LR("larw", "w", 0xfff8, 0);
1362 TEST_LR("larl", "", 0xfff8, 0);
1363 TEST_LR("lslw", "w", 0xfff8, 0);
1364 TEST_LR("lsll", "", 0xfff8, 0);
1365
1366 TEST_ARPL("arpl", "w", 0x12345678 | 3, 0x762123c | 1);
1367 TEST_ARPL("arpl", "w", 0x12345678 | 1, 0x762123c | 3);
1368 TEST_ARPL("arpl", "w", 0x12345678 | 1, 0x762123c | 1);
1369 }
1370
1371 /* 16 bit code test */
1372 extern char code16_start, code16_end;
1373 extern char code16_func1;
1374 extern char code16_func2;
1375 extern char code16_func3;
1376
1377 void test_code16(void)
1378 {
1379 struct modify_ldt_ldt_s ldt;
1380 int res, res2;
1381
1382 /* build a code segment */
1383 ldt.entry_number = 1;
1384 ldt.base_addr = (unsigned long)&code16_start;
1385 ldt.limit = &code16_end - &code16_start;
1386 ldt.seg_32bit = 0;
1387 ldt.contents = MODIFY_LDT_CONTENTS_CODE;
1388 ldt.read_exec_only = 0;
1389 ldt.limit_in_pages = 0;
1390 ldt.seg_not_present = 0;
1391 ldt.useable = 1;
1392 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1393
1394 /* call the first function */
1395 asm volatile ("lcall %1, %2"
1396 : "=a" (res)
1397 : "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc");
1398 printf("func1() = 0x%08x\n", res);
1399 asm volatile ("lcall %2, %3"
1400 : "=a" (res), "=c" (res2)
1401 : "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc");
1402 printf("func2() = 0x%08x spdec=%d\n", res, res2);
1403 asm volatile ("lcall %1, %2"
1404 : "=a" (res)
1405 : "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc");
1406 printf("func3() = 0x%08x\n", res);
1407 }
1408 #endif
1409
1410 #if defined(__x86_64__)
1411 asm(".globl func_lret\n"
1412 "func_lret:\n"
1413 "movl $0x87654641, %eax\n"
1414 "lretq\n");
1415 #else
1416 asm(".globl func_lret\n"
1417 "func_lret:\n"
1418 "movl $0x87654321, %eax\n"
1419 "lret\n"
1420
1421 ".globl func_iret\n"
1422 "func_iret:\n"
1423 "movl $0xabcd4321, %eax\n"
1424 "iret\n");
1425 #endif
1426
1427 extern char func_lret;
1428 extern char func_iret;
1429
1430 void test_misc(void)
1431 {
1432 char table[256];
1433 long res, i;
1434
1435 for(i=0;i<256;i++) table[i] = 256 - i;
1436 res = 0x12345678;
1437 asm ("xlat" : "=a" (res) : "b" (table), "0" (res));
1438 printf("xlat: EAX=" FMTLX "\n", res);
1439
1440 #if defined(__x86_64__)
1441 #if 0
1442 {
1443 /* XXX: see if Intel Core2 and AMD64 behavior really
1444 differ. Here we implemented the Intel way which is not
1445 compatible yet with QEMU. */
1446 static struct __attribute__((packed)) {
1447 uint64_t offset;
1448 uint16_t seg;
1449 } desc;
1450 long cs_sel;
1451
1452 asm volatile ("mov %%cs, %0" : "=r" (cs_sel));
1453
1454 asm volatile ("push %1\n"
1455 "call func_lret\n"
1456 : "=a" (res)
1457 : "r" (cs_sel) : "memory", "cc");
1458 printf("func_lret=" FMTLX "\n", res);
1459
1460 desc.offset = (long)&func_lret;
1461 desc.seg = cs_sel;
1462
1463 asm volatile ("xor %%rax, %%rax\n"
1464 "rex64 lcall *(%%rcx)\n"
1465 : "=a" (res)
1466 : "c" (&desc)
1467 : "memory", "cc");
1468 printf("func_lret2=" FMTLX "\n", res);
1469
1470 asm volatile ("push %2\n"
1471 "mov $ 1f, %%rax\n"
1472 "push %%rax\n"
1473 "rex64 ljmp *(%%rcx)\n"
1474 "1:\n"
1475 : "=a" (res)
1476 : "c" (&desc), "b" (cs_sel)
1477 : "memory", "cc");
1478 printf("func_lret3=" FMTLX "\n", res);
1479 }
1480 #endif
1481 #else
1482 asm volatile ("push %%cs ; call %1"
1483 : "=a" (res)
1484 : "m" (func_lret): "memory", "cc");
1485 printf("func_lret=" FMTLX "\n", res);
1486
1487 asm volatile ("pushf ; push %%cs ; call %1"
1488 : "=a" (res)
1489 : "m" (func_iret): "memory", "cc");
1490 printf("func_iret=" FMTLX "\n", res);
1491 #endif
1492
1493 #if defined(__x86_64__)
1494 /* specific popl test */
1495 asm volatile ("push $12345432 ; push $0x9abcdef ; pop (%%rsp) ; pop %0"
1496 : "=g" (res));
1497 printf("popl esp=" FMTLX "\n", res);
1498 #else
1499 /* specific popl test */
1500 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popl (%%esp) ; popl %0"
1501 : "=g" (res));
1502 printf("popl esp=" FMTLX "\n", res);
1503
1504 /* specific popw test */
1505 asm volatile ("pushl $12345432 ; pushl $0x9abcdef ; popw (%%esp) ; addl $2, %%esp ; popl %0"
1506 : "=g" (res));
1507 printf("popw esp=" FMTLX "\n", res);
1508 #endif
1509 }
1510
1511 uint8_t str_buffer[4096];
1512
1513 #define TEST_STRING1(OP, size, DF, REP)\
1514 {\
1515 long esi, edi, eax, ecx, eflags;\
1516 \
1517 esi = (long)(str_buffer + sizeof(str_buffer) / 2);\
1518 edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\
1519 eax = i2l(0x12345678);\
1520 ecx = 17;\
1521 \
1522 asm volatile ("push $0\n\t"\
1523 "popf\n\t"\
1524 DF "\n\t"\
1525 REP #OP size "\n\t"\
1526 "cld\n\t"\
1527 "pushf\n\t"\
1528 "pop %4\n\t"\
1529 : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\
1530 : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\
1531 printf("%-10s ESI=" FMTLX " EDI=" FMTLX " EAX=" FMTLX " ECX=" FMTLX " EFL=%04x\n",\
1532 REP #OP size, esi, edi, eax, ecx,\
1533 (int)(eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)));\
1534 }
1535
1536 #define TEST_STRING(OP, REP)\
1537 TEST_STRING1(OP, "b", "", REP);\
1538 TEST_STRING1(OP, "w", "", REP);\
1539 TEST_STRING1(OP, "l", "", REP);\
1540 X86_64_ONLY(TEST_STRING1(OP, "q", "", REP));\
1541 TEST_STRING1(OP, "b", "std", REP);\
1542 TEST_STRING1(OP, "w", "std", REP);\
1543 TEST_STRING1(OP, "l", "std", REP);\
1544 X86_64_ONLY(TEST_STRING1(OP, "q", "std", REP))
1545
1546 void test_string(void)
1547 {
1548 int i;
1549 for(i = 0;i < sizeof(str_buffer); i++)
1550 str_buffer[i] = i + 0x56;
1551 TEST_STRING(stos, "");
1552 TEST_STRING(stos, "rep ");
1553 TEST_STRING(lods, ""); /* to verify stos */
1554 TEST_STRING(lods, "rep ");
1555 TEST_STRING(movs, "");
1556 TEST_STRING(movs, "rep ");
1557 TEST_STRING(lods, ""); /* to verify stos */
1558
1559 /* XXX: better tests */
1560 TEST_STRING(scas, "");
1561 TEST_STRING(scas, "repz ");
1562 TEST_STRING(scas, "repnz ");
1563 TEST_STRING(cmps, "");
1564 TEST_STRING(cmps, "repz ");
1565 TEST_STRING(cmps, "repnz ");
1566 }
1567
1568 #ifdef TEST_VM86
1569 /* VM86 test */
1570
1571 static inline void set_bit(uint8_t *a, unsigned int bit)
1572 {
1573 a[bit / 8] |= (1 << (bit % 8));
1574 }
1575
1576 static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg)
1577 {
1578 return (uint8_t *)((seg << 4) + (reg & 0xffff));
1579 }
1580
1581 static inline void pushw(struct vm86_regs *r, int val)
1582 {
1583 r->esp = (r->esp & ~0xffff) | ((r->esp - 2) & 0xffff);
1584 *(uint16_t *)seg_to_linear(r->ss, r->esp) = val;
1585 }
1586
1587 static inline int vm86(int func, struct vm86plus_struct *v86)
1588 {
1589 return syscall(__NR_vm86, func, v86);
1590 }
1591
1592 extern char vm86_code_start;
1593 extern char vm86_code_end;
1594
1595 #define VM86_CODE_CS 0x100
1596 #define VM86_CODE_IP 0x100
1597
1598 void test_vm86(void)
1599 {
1600 struct vm86plus_struct ctx;
1601 struct vm86_regs *r;
1602 uint8_t *vm86_mem;
1603 int seg, ret;
1604
1605 vm86_mem = mmap((void *)0x00000000, 0x110000,
1606 PROT_WRITE | PROT_READ | PROT_EXEC,
1607 MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
1608 if (vm86_mem == MAP_FAILED) {
1609 printf("ERROR: could not map vm86 memory");
1610 return;
1611 }
1612 memset(&ctx, 0, sizeof(ctx));
1613
1614 /* init basic registers */
1615 r = &ctx.regs;
1616 r->eip = VM86_CODE_IP;
1617 r->esp = 0xfffe;
1618 seg = VM86_CODE_CS;
1619 r->cs = seg;
1620 r->ss = seg;
1621 r->ds = seg;
1622 r->es = seg;
1623 r->fs = seg;
1624 r->gs = seg;
1625 r->eflags = VIF_MASK;
1626
1627 /* move code to proper address. We use the same layout as a .com
1628 dos program. */
1629 memcpy(vm86_mem + (VM86_CODE_CS << 4) + VM86_CODE_IP,
1630 &vm86_code_start, &vm86_code_end - &vm86_code_start);
1631
1632 /* mark int 0x21 as being emulated */
1633 set_bit((uint8_t *)&ctx.int_revectored, 0x21);
1634
1635 for(;;) {
1636 ret = vm86(VM86_ENTER, &ctx);
1637 switch(VM86_TYPE(ret)) {
1638 case VM86_INTx:
1639 {
1640 int int_num, ah, v;
1641
1642 int_num = VM86_ARG(ret);
1643 if (int_num != 0x21)
1644 goto unknown_int;
1645 ah = (r->eax >> 8) & 0xff;
1646 switch(ah) {
1647 case 0x00: /* exit */
1648 goto the_end;
1649 case 0x02: /* write char */
1650 {
1651 uint8_t c = r->edx;
1652 putchar(c);
1653 }
1654 break;
1655 case 0x09: /* write string */
1656 {
1657 uint8_t c, *ptr;
1658 ptr = seg_to_linear(r->ds, r->edx);
1659 for(;;) {
1660 c = *ptr++;
1661 if (c == '$')
1662 break;
1663 putchar(c);
1664 }
1665 r->eax = (r->eax & ~0xff) | '$';
1666 }
1667 break;
1668 case 0xff: /* extension: write eflags number in edx */
1669 v = (int)r->edx;
1670 #ifndef LINUX_VM86_IOPL_FIX
1671 v &= ~0x3000;
1672 #endif
1673 printf("%08x\n", v);
1674 break;
1675 default:
1676 unknown_int:
1677 printf("unsupported int 0x%02x\n", int_num);
1678 goto the_end;
1679 }
1680 }
1681 break;
1682 case VM86_SIGNAL:
1683 /* a signal came, we just ignore that */
1684 break;
1685 case VM86_STI:
1686 break;
1687 default:
1688 printf("ERROR: unhandled vm86 return code (0x%x)\n", ret);
1689 goto the_end;
1690 }
1691 }
1692 the_end:
1693 printf("VM86 end\n");
1694 munmap(vm86_mem, 0x110000);
1695 }
1696 #endif
1697
1698 /* exception tests */
1699 #if defined(__i386__) && !defined(REG_EAX)
1700 #define REG_EAX EAX
1701 #define REG_EBX EBX
1702 #define REG_ECX ECX
1703 #define REG_EDX EDX
1704 #define REG_ESI ESI
1705 #define REG_EDI EDI
1706 #define REG_EBP EBP
1707 #define REG_ESP ESP
1708 #define REG_EIP EIP
1709 #define REG_EFL EFL
1710 #define REG_TRAPNO TRAPNO
1711 #define REG_ERR ERR
1712 #endif
1713
1714 #if defined(__x86_64__)
1715 #define REG_EIP REG_RIP
1716 #endif
1717
1718 jmp_buf jmp_env;
1719 int v1;
1720 int tab[2];
1721
1722 void sig_handler(int sig, siginfo_t *info, void *puc)
1723 {
1724 struct ucontext *uc = puc;
1725
1726 printf("si_signo=%d si_errno=%d si_code=%d",
1727 info->si_signo, info->si_errno, info->si_code);
1728 printf(" si_addr=0x%08lx",
1729 (unsigned long)info->si_addr);
1730 printf("\n");
1731
1732 printf("trapno=" FMTLX " err=" FMTLX,
1733 (long)uc->uc_mcontext.gregs[REG_TRAPNO],
1734 (long)uc->uc_mcontext.gregs[REG_ERR]);
1735 printf(" EIP=" FMTLX, (long)uc->uc_mcontext.gregs[REG_EIP]);
1736 printf("\n");
1737 longjmp(jmp_env, 1);
1738 }
1739
1740 void test_exceptions(void)
1741 {
1742 struct sigaction act;
1743 volatile int val;
1744
1745 act.sa_sigaction = sig_handler;
1746 sigemptyset(&act.sa_mask);
1747 act.sa_flags = SA_SIGINFO | SA_NODEFER;
1748 sigaction(SIGFPE, &act, NULL);
1749 sigaction(SIGILL, &act, NULL);
1750 sigaction(SIGSEGV, &act, NULL);
1751 sigaction(SIGBUS, &act, NULL);
1752 sigaction(SIGTRAP, &act, NULL);
1753
1754 /* test division by zero reporting */
1755 printf("DIVZ exception:\n");
1756 if (setjmp(jmp_env) == 0) {
1757 /* now divide by zero */
1758 v1 = 0;
1759 v1 = 2 / v1;
1760 }
1761
1762 #if !defined(__x86_64__)
1763 printf("BOUND exception:\n");
1764 if (setjmp(jmp_env) == 0) {
1765 /* bound exception */
1766 tab[0] = 1;
1767 tab[1] = 10;
1768 asm volatile ("bound %0, %1" : : "r" (11), "m" (tab[0]));
1769 }
1770 #endif
1771
1772 #ifdef TEST_SEGS
1773 printf("segment exceptions:\n");
1774 if (setjmp(jmp_env) == 0) {
1775 /* load an invalid segment */
1776 asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1));
1777 }
1778 if (setjmp(jmp_env) == 0) {
1779 /* null data segment is valid */
1780 asm volatile ("movl %0, %%fs" : : "r" (3));
1781 /* null stack segment */
1782 asm volatile ("movl %0, %%ss" : : "r" (3));
1783 }
1784
1785 {
1786 struct modify_ldt_ldt_s ldt;
1787 ldt.entry_number = 1;
1788 ldt.base_addr = (unsigned long)&seg_data1;
1789 ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
1790 ldt.seg_32bit = 1;
1791 ldt.contents = MODIFY_LDT_CONTENTS_DATA;
1792 ldt.read_exec_only = 0;
1793 ldt.limit_in_pages = 1;
1794 ldt.seg_not_present = 1;
1795 ldt.useable = 1;
1796 modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
1797
1798 if (setjmp(jmp_env) == 0) {
1799 /* segment not present */
1800 asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
1801 }
1802 }
1803 #endif
1804
1805 /* test SEGV reporting */
1806 printf("PF exception:\n");
1807 if (setjmp(jmp_env) == 0) {
1808 val = 1;
1809 /* we add a nop to test a weird PC retrieval case */
1810 asm volatile ("nop");
1811 /* now store in an invalid address */
1812 *(char *)0x1234 = 1;
1813 }
1814
1815 /* test SEGV reporting */
1816 printf("PF exception:\n");
1817 if (setjmp(jmp_env) == 0) {
1818 val = 1;
1819 /* read from an invalid address */
1820 v1 = *(char *)0x1234;
1821 }
1822
1823 /* test illegal instruction reporting */
1824 printf("UD2 exception:\n");
1825 if (setjmp(jmp_env) == 0) {
1826 /* now execute an invalid instruction */
1827 asm volatile("ud2");
1828 }
1829 printf("lock nop exception:\n");
1830 if (setjmp(jmp_env) == 0) {
1831 /* now execute an invalid instruction */
1832 asm volatile("lock nop");
1833 }
1834
1835 printf("INT exception:\n");
1836 if (setjmp(jmp_env) == 0) {
1837 asm volatile ("int $0xfd");
1838 }
1839 if (setjmp(jmp_env) == 0) {
1840 asm volatile ("int $0x01");
1841 }
1842 if (setjmp(jmp_env) == 0) {
1843 asm volatile (".byte 0xcd, 0x03");
1844 }
1845 if (setjmp(jmp_env) == 0) {
1846 asm volatile ("int $0x04");
1847 }
1848 if (setjmp(jmp_env) == 0) {
1849 asm volatile ("int $0x05");
1850 }
1851
1852 printf("INT3 exception:\n");
1853 if (setjmp(jmp_env) == 0) {
1854 asm volatile ("int3");
1855 }
1856
1857 printf("CLI exception:\n");
1858 if (setjmp(jmp_env) == 0) {
1859 asm volatile ("cli");
1860 }
1861
1862 printf("STI exception:\n");
1863 if (setjmp(jmp_env) == 0) {
1864 asm volatile ("cli");
1865 }
1866
1867 #if !defined(__x86_64__)
1868 printf("INTO exception:\n");
1869 if (setjmp(jmp_env) == 0) {
1870 /* overflow exception */
1871 asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff));
1872 }
1873 #endif
1874
1875 printf("OUTB exception:\n");
1876 if (setjmp(jmp_env) == 0) {
1877 asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0));
1878 }
1879
1880 printf("INB exception:\n");
1881 if (setjmp(jmp_env) == 0) {
1882 asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321));
1883 }
1884
1885 printf("REP OUTSB exception:\n");
1886 if (setjmp(jmp_env) == 0) {
1887 asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1));
1888 }
1889
1890 printf("REP INSB exception:\n");
1891 if (setjmp(jmp_env) == 0) {
1892 asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1));
1893 }
1894
1895 printf("HLT exception:\n");
1896 if (setjmp(jmp_env) == 0) {
1897 asm volatile ("hlt");
1898 }
1899
1900 printf("single step exception:\n");
1901 val = 0;
1902 if (setjmp(jmp_env) == 0) {
1903 asm volatile ("pushf\n"
1904 "orl $0x00100, (%%esp)\n"
1905 "popf\n"
1906 "movl $0xabcd, %0\n"
1907 "movl $0x0, %0\n" : "=m" (val) : : "cc", "memory");
1908 }
1909 printf("val=0x%x\n", val);
1910 }
1911
1912 #if !defined(__x86_64__)
1913 /* specific precise single step test */
1914 void sig_trap_handler(int sig, siginfo_t *info, void *puc)
1915 {
1916 struct ucontext *uc = puc;
1917 printf("EIP=" FMTLX "\n", (long)uc->uc_mcontext.gregs[REG_EIP]);
1918 }
1919
1920 const uint8_t sstep_buf1[4] = { 1, 2, 3, 4};
1921 uint8_t sstep_buf2[4];
1922
1923 void test_single_step(void)
1924 {
1925 struct sigaction act;
1926 volatile int val;
1927 int i;
1928
1929 val = 0;
1930 act.sa_sigaction = sig_trap_handler;
1931 sigemptyset(&act.sa_mask);
1932 act.sa_flags = SA_SIGINFO;
1933 sigaction(SIGTRAP, &act, NULL);
1934 asm volatile ("pushf\n"
1935 "orl $0x00100, (%%esp)\n"
1936 "popf\n"
1937 "movl $0xabcd, %0\n"
1938
1939 /* jmp test */
1940 "movl $3, %%ecx\n"
1941 "1:\n"
1942 "addl $1, %0\n"
1943 "decl %%ecx\n"
1944 "jnz 1b\n"
1945
1946 /* movsb: the single step should stop at each movsb iteration */
1947 "movl $sstep_buf1, %%esi\n"
1948 "movl $sstep_buf2, %%edi\n"
1949 "movl $0, %%ecx\n"
1950 "rep movsb\n"
1951 "movl $3, %%ecx\n"
1952 "rep movsb\n"
1953 "movl $1, %%ecx\n"
1954 "rep movsb\n"
1955
1956 /* cmpsb: the single step should stop at each cmpsb iteration */
1957 "movl $sstep_buf1, %%esi\n"
1958 "movl $sstep_buf2, %%edi\n"
1959 "movl $0, %%ecx\n"
1960 "rep cmpsb\n"
1961 "movl $4, %%ecx\n"
1962 "rep cmpsb\n"
1963
1964 /* getpid() syscall: single step should skip one
1965 instruction */
1966 "movl $20, %%eax\n"
1967 "int $0x80\n"
1968 "movl $0, %%eax\n"
1969
1970 /* when modifying SS, trace is not done on the next
1971 instruction */
1972 "movl %%ss, %%ecx\n"
1973 "movl %%ecx, %%ss\n"
1974 "addl $1, %0\n"
1975 "movl $1, %%eax\n"
1976 "movl %%ecx, %%ss\n"
1977 "jmp 1f\n"
1978 "addl $1, %0\n"
1979 "1:\n"
1980 "movl $1, %%eax\n"
1981 "pushl %%ecx\n"
1982 "popl %%ss\n"
1983 "addl $1, %0\n"
1984 "movl $1, %%eax\n"
1985
1986 "pushf\n"
1987 "andl $~0x00100, (%%esp)\n"
1988 "popf\n"
1989 : "=m" (val)
1990 :
1991 : "cc", "memory", "eax", "ecx", "esi", "edi");
1992 printf("val=%d\n", val);
1993 for(i = 0; i < 4; i++)
1994 printf("sstep_buf2[%d] = %d\n", i, sstep_buf2[i]);
1995 }
1996
1997 /* self modifying code test */
1998 uint8_t code[] = {
1999 0xb8, 0x1, 0x00, 0x00, 0x00, /* movl $1, %eax */
2000 0xc3, /* ret */
2001 };
2002
2003 asm(".section \".data\"\n"
2004 "smc_code2:\n"
2005 "movl 4(%esp), %eax\n"
2006 "movl %eax, smc_patch_addr2 + 1\n"
2007 "nop\n"
2008 "nop\n"
2009 "nop\n"
2010 "nop\n"
2011 "nop\n"
2012 "nop\n"
2013 "nop\n"
2014 "nop\n"
2015 "smc_patch_addr2:\n"
2016 "movl $1, %eax\n"
2017 "ret\n"
2018 ".previous\n"
2019 );
2020
2021 typedef int FuncType(void);
2022 extern int smc_code2(int);
2023 void test_self_modifying_code(void)
2024 {
2025 int i;
2026 printf("self modifying code:\n");
2027 printf("func1 = 0x%x\n", ((FuncType *)code)());
2028 for(i = 2; i <= 4; i++) {
2029 code[1] = i;
2030 printf("func%d = 0x%x\n", i, ((FuncType *)code)());
2031 }
2032
2033 /* more difficult test : the modified code is just after the
2034 modifying instruction. It is forbidden in Intel specs, but it
2035 is used by old DOS programs */
2036 for(i = 2; i <= 4; i++) {
2037 printf("smc_code2(%d) = %d\n", i, smc_code2(i));
2038 }
2039 }
2040 #endif
2041
2042 long enter_stack[4096];
2043
2044 #if defined(__x86_64__)
2045 #define RSP "%%rsp"
2046 #define RBP "%%rbp"
2047 #else
2048 #define RSP "%%esp"
2049 #define RBP "%%ebp"
2050 #endif
2051
2052 #define TEST_ENTER(size, stack_type, level)\
2053 {\
2054 long esp_save, esp_val, ebp_val, ebp_save, i;\
2055 stack_type *ptr, *stack_end, *stack_ptr;\
2056 memset(enter_stack, 0, sizeof(enter_stack));\
2057 stack_end = stack_ptr = (stack_type *)(enter_stack + 4096);\
2058 ebp_val = (long)stack_ptr;\
2059 for(i=1;i<=32;i++)\
2060 *--stack_ptr = i;\
2061 esp_val = (long)stack_ptr;\
2062 asm("mov " RSP ", %[esp_save]\n"\
2063 "mov " RBP ", %[ebp_save]\n"\
2064 "mov %[esp_val], " RSP "\n"\
2065 "mov %[ebp_val], " RBP "\n"\
2066 "enter" size " $8, $" #level "\n"\
2067 "mov " RSP ", %[esp_val]\n"\
2068 "mov " RBP ", %[ebp_val]\n"\
2069 "mov %[esp_save], " RSP "\n"\
2070 "mov %[ebp_save], " RBP "\n"\
2071 : [esp_save] "=r" (esp_save),\
2072 [ebp_save] "=r" (ebp_save),\
2073 [esp_val] "=r" (esp_val),\
2074 [ebp_val] "=r" (ebp_val)\
2075 : "[esp_val]" (esp_val),\
2076 "[ebp_val]" (ebp_val));\
2077 printf("level=%d:\n", level);\
2078 printf("esp_val=" FMTLX "\n", esp_val - (long)stack_end);\
2079 printf("ebp_val=" FMTLX "\n", ebp_val - (long)stack_end);\
2080 for(ptr = (stack_type *)esp_val; ptr < stack_end; ptr++)\
2081 printf(FMTLX "\n", (long)ptr[0]);\
2082 }
2083
2084 static void test_enter(void)
2085 {
2086 #if defined(__x86_64__)
2087 TEST_ENTER("q", uint64_t, 0);
2088 TEST_ENTER("q", uint64_t, 1);
2089 TEST_ENTER("q", uint64_t, 2);
2090 TEST_ENTER("q", uint64_t, 31);
2091 #else
2092 TEST_ENTER("l", uint32_t, 0);
2093 TEST_ENTER("l", uint32_t, 1);
2094 TEST_ENTER("l", uint32_t, 2);
2095 TEST_ENTER("l", uint32_t, 31);
2096 #endif
2097
2098 TEST_ENTER("w", uint16_t, 0);
2099 TEST_ENTER("w", uint16_t, 1);
2100 TEST_ENTER("w", uint16_t, 2);
2101 TEST_ENTER("w", uint16_t, 31);
2102 }
2103
2104 #ifdef TEST_SSE
2105
2106 typedef int __m64 __attribute__ ((__mode__ (__V2SI__)));
2107 typedef float __m128 __attribute__ ((__mode__(__V4SF__)));
2108
2109 typedef union {
2110 double d[2];
2111 float s[4];
2112 uint32_t l[4];
2113 uint64_t q[2];
2114 __m128 dq;
2115 } XMMReg;
2116
2117 static uint64_t __attribute__((aligned(16))) test_values[4][2] = {
2118 { 0x456723c698694873, 0xdc515cff944a58ec },
2119 { 0x1f297ccd58bad7ab, 0x41f21efba9e3e146 },
2120 { 0x007c62c2085427f8, 0x231be9e8cde7438d },
2121 { 0x0f76255a085427f8, 0xc233e9e8c4c9439a },
2122 };
2123
2124 #define SSE_OP(op)\
2125 {\
2126 asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2127 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2128 #op,\
2129 a.q[1], a.q[0],\
2130 b.q[1], b.q[0],\
2131 r.q[1], r.q[0]);\
2132 }
2133
2134 #define SSE_OP2(op)\
2135 {\
2136 int i;\
2137 for(i=0;i<2;i++) {\
2138 a.q[0] = test_values[2*i][0];\
2139 a.q[1] = test_values[2*i][1];\
2140 b.q[0] = test_values[2*i+1][0];\
2141 b.q[1] = test_values[2*i+1][1];\
2142 SSE_OP(op);\
2143 }\
2144 }
2145
2146 #define MMX_OP2(op)\
2147 {\
2148 int i;\
2149 for(i=0;i<2;i++) {\
2150 a.q[0] = test_values[2*i][0];\
2151 b.q[0] = test_values[2*i+1][0];\
2152 asm volatile (#op " %2, %0" : "=y" (r.q[0]) : "0" (a.q[0]), "y" (b.q[0]));\
2153 printf("%-9s: a=" FMT64X " b=" FMT64X " r=" FMT64X "\n",\
2154 #op,\
2155 a.q[0],\
2156 b.q[0],\
2157 r.q[0]);\
2158 }\
2159 SSE_OP2(op);\
2160 }
2161
2162 #define SHUF_OP(op, ib)\
2163 {\
2164 a.q[0] = test_values[0][0];\
2165 a.q[1] = test_values[0][1];\
2166 b.q[0] = test_values[1][0];\
2167 b.q[1] = test_values[1][1];\
2168 asm volatile (#op " $" #ib ", %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2169 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2170 #op,\
2171 a.q[1], a.q[0],\
2172 b.q[1], b.q[0],\
2173 ib,\
2174 r.q[1], r.q[0]);\
2175 }
2176
2177 #define PSHUF_OP(op, ib)\
2178 {\
2179 int i;\
2180 for(i=0;i<2;i++) {\
2181 a.q[0] = test_values[2*i][0];\
2182 a.q[1] = test_values[2*i][1];\
2183 asm volatile (#op " $" #ib ", %1, %0" : "=x" (r.dq) : "x" (a.dq));\
2184 printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2185 #op,\
2186 a.q[1], a.q[0],\
2187 ib,\
2188 r.q[1], r.q[0]);\
2189 }\
2190 }
2191
2192 #define SHIFT_IM(op, ib)\
2193 {\
2194 int i;\
2195 for(i=0;i<2;i++) {\
2196 a.q[0] = test_values[2*i][0];\
2197 a.q[1] = test_values[2*i][1];\
2198 asm volatile (#op " $" #ib ", %0" : "=x" (r.dq) : "0" (a.dq));\
2199 printf("%-9s: a=" FMT64X "" FMT64X " ib=%02x r=" FMT64X "" FMT64X "\n",\
2200 #op,\
2201 a.q[1], a.q[0],\
2202 ib,\
2203 r.q[1], r.q[0]);\
2204 }\
2205 }
2206
2207 #define SHIFT_OP(op, ib)\
2208 {\
2209 int i;\
2210 SHIFT_IM(op, ib);\
2211 for(i=0;i<2;i++) {\
2212 a.q[0] = test_values[2*i][0];\
2213 a.q[1] = test_values[2*i][1];\
2214 b.q[0] = ib;\
2215 b.q[1] = 0;\
2216 asm volatile (#op " %2, %0" : "=x" (r.dq) : "0" (a.dq), "x" (b.dq));\
2217 printf("%-9s: a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2218 #op,\
2219 a.q[1], a.q[0],\
2220 b.q[1], b.q[0],\
2221 r.q[1], r.q[0]);\
2222 }\
2223 }
2224
2225 #define MOVMSK(op)\
2226 {\
2227 int i, reg;\
2228 for(i=0;i<2;i++) {\
2229 a.q[0] = test_values[2*i][0];\
2230 a.q[1] = test_values[2*i][1];\
2231 asm volatile (#op " %1, %0" : "=r" (reg) : "x" (a.dq));\
2232 printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\
2233 #op,\
2234 a.q[1], a.q[0],\
2235 reg);\
2236 }\
2237 }
2238
2239 #define SSE_OPS(a) \
2240 SSE_OP(a ## ps);\
2241 SSE_OP(a ## ss);
2242
2243 #define SSE_OPD(a) \
2244 SSE_OP(a ## pd);\
2245 SSE_OP(a ## sd);
2246
2247 #define SSE_COMI(op, field)\
2248 {\
2249 unsigned int eflags;\
2250 XMMReg a, b;\
2251 a.field[0] = a1;\
2252 b.field[0] = b1;\
2253 asm volatile (#op " %2, %1\n"\
2254 "pushf\n"\
2255 "pop %0\n"\
2256 : "=m" (eflags)\
2257 : "x" (a.dq), "x" (b.dq));\
2258 printf("%-9s: a=%f b=%f cc=%04x\n",\
2259 #op, a1, b1,\
2260 eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\
2261 }
2262
2263 void test_sse_comi(double a1, double b1)
2264 {
2265 SSE_COMI(ucomiss, s);
2266 SSE_COMI(ucomisd, d);
2267 SSE_COMI(comiss, s);
2268 SSE_COMI(comisd, d);
2269 }
2270
2271 #define CVT_OP_XMM(op)\
2272 {\
2273 asm volatile (#op " %1, %0" : "=x" (r.dq) : "x" (a.dq));\
2274 printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "" FMT64X "\n",\
2275 #op,\
2276 a.q[1], a.q[0],\
2277 r.q[1], r.q[0]);\
2278 }
2279
2280 /* Force %xmm0 usage to avoid the case where both register index are 0
2281 to test intruction decoding more extensively */
2282 #define CVT_OP_XMM2MMX(op)\
2283 {\
2284 asm volatile (#op " %1, %0" : "=y" (r.q[0]) : "x" (a.dq) \
2285 : "%xmm0"); \
2286 asm volatile("emms\n"); \
2287 printf("%-9s: a=" FMT64X "" FMT64X " r=" FMT64X "\n",\
2288 #op,\
2289 a.q[1], a.q[0],\
2290 r.q[0]);\
2291 }
2292
2293 #define CVT_OP_MMX2XMM(op)\
2294 {\
2295 asm volatile (#op " %1, %0" : "=x" (r.dq) : "y" (a.q[0]));\
2296 asm volatile("emms\n"); \
2297 printf("%-9s: a=" FMT64X " r=" FMT64X "" FMT64X "\n",\
2298 #op,\
2299 a.q[0],\
2300 r.q[1], r.q[0]);\
2301 }
2302
2303 #define CVT_OP_REG2XMM(op)\
2304 {\
2305 asm volatile (#op " %1, %0" : "=x" (r.dq) : "r" (a.l[0]));\
2306 printf("%-9s: a=%08x r=" FMT64X "" FMT64X "\n",\
2307 #op,\
2308 a.l[0],\
2309 r.q[1], r.q[0]);\
2310 }
2311
2312 #define CVT_OP_XMM2REG(op)\
2313 {\
2314 asm volatile (#op " %1, %0" : "=r" (r.l[0]) : "x" (a.dq));\
2315 printf("%-9s: a=" FMT64X "" FMT64X " r=%08x\n",\
2316 #op,\
2317 a.q[1], a.q[0],\
2318 r.l[0]);\
2319 }
2320
2321 struct fpxstate {
2322 uint16_t fpuc;
2323 uint16_t fpus;
2324 uint16_t fptag;
2325 uint16_t fop;
2326 uint32_t fpuip;
2327 uint16_t cs_sel;
2328 uint16_t dummy0;
2329 uint32_t fpudp;
2330 uint16_t ds_sel;
2331 uint16_t dummy1;
2332 uint32_t mxcsr;
2333 uint32_t mxcsr_mask;
2334 uint8_t fpregs1[8 * 16];
2335 uint8_t xmm_regs[8 * 16];
2336 uint8_t dummy2[224];
2337 };
2338
2339 static struct fpxstate fpx_state __attribute__((aligned(16)));
2340 static struct fpxstate fpx_state2 __attribute__((aligned(16)));
2341
2342 void test_fxsave(void)
2343 {
2344 struct fpxstate *fp = &fpx_state;
2345 struct fpxstate *fp2 = &fpx_state2;
2346 int i, nb_xmm;
2347 XMMReg a, b;
2348 a.q[0] = test_values[0][0];
2349 a.q[1] = test_values[0][1];
2350 b.q[0] = test_values[1][0];
2351 b.q[1] = test_values[1][1];
2352
2353 asm("movdqa %2, %%xmm0\n"
2354 "movdqa %3, %%xmm7\n"
2355 #if defined(__x86_64__)
2356 "movdqa %2, %%xmm15\n"
2357 #endif
2358 " fld1\n"
2359 " fldpi\n"
2360 " fldln2\n"
2361 " fxsave %0\n"
2362 " fxrstor %0\n"
2363 " fxsave %1\n"
2364 " fninit\n"
2365 : "=m" (*(uint32_t *)fp2), "=m" (*(uint32_t *)fp)
2366 : "m" (a), "m" (b));
2367 printf("fpuc=%04x\n", fp->fpuc);
2368 printf("fpus=%04x\n", fp->fpus);
2369 printf("fptag=%04x\n", fp->fptag);
2370 for(i = 0; i < 3; i++) {
2371 printf("ST%d: " FMT64X " %04x\n",
2372 i,
2373 *(uint64_t *)&fp->fpregs1[i * 16],
2374 *(uint16_t *)&fp->fpregs1[i * 16 + 8]);
2375 }
2376 printf("mxcsr=%08x\n", fp->mxcsr & 0x1f80);
2377 #if defined(__x86_64__)
2378 nb_xmm = 16;
2379 #else
2380 nb_xmm = 8;
2381 #endif
2382 for(i = 0; i < nb_xmm; i++) {
2383 printf("xmm%d: " FMT64X "" FMT64X "\n",
2384 i,
2385 *(uint64_t *)&fp->xmm_regs[i * 16],
2386 *(uint64_t *)&fp->xmm_regs[i * 16 + 8]);
2387 }
2388 }
2389
2390 void test_sse(void)
2391 {
2392 XMMReg r, a, b;
2393 int i;
2394
2395 MMX_OP2(punpcklbw);
2396 MMX_OP2(punpcklwd);
2397 MMX_OP2(punpckldq);
2398 MMX_OP2(packsswb);
2399 MMX_OP2(pcmpgtb);
2400 MMX_OP2(pcmpgtw);
2401 MMX_OP2(pcmpgtd);
2402 MMX_OP2(packuswb);
2403 MMX_OP2(punpckhbw);
2404 MMX_OP2(punpckhwd);
2405 MMX_OP2(punpckhdq);
2406 MMX_OP2(packssdw);
2407 MMX_OP2(pcmpeqb);
2408 MMX_OP2(pcmpeqw);
2409 MMX_OP2(pcmpeqd);
2410
2411 MMX_OP2(paddq);
2412 MMX_OP2(pmullw);
2413 MMX_OP2(psubusb);
2414 MMX_OP2(psubusw);
2415 MMX_OP2(pminub);
2416 MMX_OP2(pand);
2417 MMX_OP2(paddusb);
2418 MMX_OP2(paddusw);
2419 MMX_OP2(pmaxub);
2420 MMX_OP2(pandn);
2421
2422 MMX_OP2(pmulhuw);
2423 MMX_OP2(pmulhw);
2424
2425 MMX_OP2(psubsb);
2426 MMX_OP2(psubsw);
2427 MMX_OP2(pminsw);
2428 MMX_OP2(por);
2429 MMX_OP2(paddsb);
2430 MMX_OP2(paddsw);
2431 MMX_OP2(pmaxsw);
2432 MMX_OP2(pxor);
2433 MMX_OP2(pmuludq);
2434 MMX_OP2(pmaddwd);
2435 MMX_OP2(psadbw);
2436 MMX_OP2(psubb);
2437 MMX_OP2(psubw);
2438 MMX_OP2(psubd);
2439 MMX_OP2(psubq);
2440 MMX_OP2(paddb);
2441 MMX_OP2(paddw);
2442 MMX_OP2(paddd);
2443
2444 MMX_OP2(pavgb);
2445 MMX_OP2(pavgw);
2446
2447 asm volatile ("pinsrw $1, %1, %0" : "=y" (r.q[0]) : "r" (0x12345678));
2448 printf("%-9s: r=" FMT64X "\n", "pinsrw", r.q[0]);
2449
2450 asm volatile ("pinsrw $5, %1, %0" : "=x" (r.dq) : "r" (0x12345678));
2451 printf("%-9s: r=" FMT64X "" FMT64X "\n", "pinsrw", r.q[1], r.q[0]);
2452
2453 a.q[0] = test_values[0][0];
2454 a.q[1] = test_values[0][1];
2455 asm volatile ("pextrw $1, %1, %0" : "=r" (r.l[0]) : "y" (a.q[0]));
2456 printf("%-9s: r=%08x\n", "pextrw", r.l[0]);
2457
2458 asm volatile ("pextrw $5, %1, %0" : "=r" (r.l[0]) : "x" (a.dq));
2459 printf("%-9s: r=%08x\n", "pextrw", r.l[0]);
2460
2461 asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "y" (a.q[0]));
2462 printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]);
2463
2464 asm volatile ("pmovmskb %1, %0" : "=r" (r.l[0]) : "x" (a.dq));
2465 printf("%-9s: r=%08x\n", "pmovmskb", r.l[0]);
2466
2467 {
2468 r.q[0] = -1;
2469 r.q[1] = -1;
2470
2471 a.q[0] = test_values[0][0];
2472 a.q[1] = test_values[0][1];
2473 b.q[0] = test_values[1][0];
2474 b.q[1] = test_values[1][1];
2475 asm volatile("maskmovq %1, %0" :
2476 : "y" (a.q[0]), "y" (b.q[0]), "D" (&r)
2477 : "memory");
2478 printf("%-9s: r=" FMT64X " a=" FMT64X " b=" FMT64X "\n",
2479 "maskmov",
2480 r.q[0],
2481 a.q[0],
2482 b.q[0]);
2483 asm volatile("maskmovdqu %1, %0" :
2484 : "x" (a.dq), "x" (b.dq), "D" (&r)
2485 : "memory");
2486 printf("%-9s: r=" FMT64X "" FMT64X " a=" FMT64X "" FMT64X " b=" FMT64X "" FMT64X "\n",
2487 "maskmov",
2488 r.q[1], r.q[0],
2489 a.q[1], a.q[0],
2490 b.q[1], b.q[0]);
2491 }
2492
2493 asm volatile ("emms");
2494
2495 SSE_OP2(punpcklqdq);
2496 SSE_OP2(punpckhqdq);
2497 SSE_OP2(andps);
2498 SSE_OP2(andpd);
2499 SSE_OP2(andnps);
2500 SSE_OP2(andnpd);
2501 SSE_OP2(orps);
2502 SSE_OP2(orpd);
2503 SSE_OP2(xorps);
2504 SSE_OP2(xorpd);
2505
2506 SSE_OP2(unpcklps);
2507 SSE_OP2(unpcklpd);
2508 SSE_OP2(unpckhps);
2509 SSE_OP2(unpckhpd);
2510
2511 SHUF_OP(shufps, 0x78);
2512 SHUF_OP(shufpd, 0x02);
2513
2514 PSHUF_OP(pshufd, 0x78);
2515 PSHUF_OP(pshuflw, 0x78);
2516 PSHUF_OP(pshufhw, 0x78);
2517
2518 SHIFT_OP(psrlw, 7);
2519 SHIFT_OP(psrlw, 16);
2520 SHIFT_OP(psraw, 7);
2521 SHIFT_OP(psraw, 16);
2522 SHIFT_OP(psllw, 7);
2523 SHIFT_OP(psllw, 16);
2524
2525 SHIFT_OP(psrld, 7);
2526 SHIFT_OP(psrld, 32);
2527 SHIFT_OP(psrad, 7);
2528 SHIFT_OP(psrad, 32);
2529 SHIFT_OP(pslld, 7);
2530 SHIFT_OP(pslld, 32);
2531
2532 SHIFT_OP(psrlq, 7);
2533 SHIFT_OP(psrlq, 32);
2534 SHIFT_OP(psllq, 7);
2535 SHIFT_OP(psllq, 32);
2536
2537 SHIFT_IM(psrldq, 16);
2538 SHIFT_IM(psrldq, 7);
2539 SHIFT_IM(pslldq, 16);
2540 SHIFT_IM(pslldq, 7);
2541
2542 MOVMSK(movmskps);
2543 MOVMSK(movmskpd);
2544
2545 /* FPU specific ops */
2546
2547 {
2548 uint32_t mxcsr;
2549 asm volatile("stmxcsr %0" : "=m" (mxcsr));
2550 printf("mxcsr=%08x\n", mxcsr & 0x1f80);
2551 asm volatile("ldmxcsr %0" : : "m" (mxcsr));
2552 }
2553
2554 test_sse_comi(2, -1);
2555 test_sse_comi(2, 2);
2556 test_sse_comi(2, 3);
2557 test_sse_comi(2, q_nan.d);
2558 test_sse_comi(q_nan.d, -1);
2559
2560 for(i = 0; i < 2; i++) {
2561 a.s[0] = 2.7;
2562 a.s[1] = 3.4;
2563 a.s[2] = 4;
2564 a.s[3] = -6.3;
2565 b.s[0] = 45.7;
2566 b.s[1] = 353.4;
2567 b.s[2] = 4;
2568 b.s[3] = 56.3;
2569 if (i == 1) {
2570 a.s[0] = q_nan.d;
2571 b.s[3] = q_nan.d;
2572 }
2573
2574 SSE_OPS(add);
2575 SSE_OPS(mul);
2576 SSE_OPS(sub);
2577 SSE_OPS(min);
2578 SSE_OPS(div);
2579 SSE_OPS(max);
2580 SSE_OPS(sqrt);
2581 SSE_OPS(cmpeq);
2582 SSE_OPS(cmplt);
2583 SSE_OPS(cmple);
2584 SSE_OPS(cmpunord);
2585 SSE_OPS(cmpneq);
2586 SSE_OPS(cmpnlt);
2587 SSE_OPS(cmpnle);
2588 SSE_OPS(cmpord);
2589
2590
2591 a.d[0] = 2.7;
2592 a.d[1] = -3.4;
2593 b.d[0] = 45.7;
2594 b.d[1] = -53.4;
2595 if (i == 1) {
2596 a.d[0] = q_nan.d;
2597 b.d[1] = q_nan.d;
2598 }
2599 SSE_OPD(add);
2600 SSE_OPD(mul);
2601 SSE_OPD(sub);
2602 SSE_OPD(min);
2603 SSE_OPD(div);
2604 SSE_OPD(max);
2605 SSE_OPD(sqrt);
2606 SSE_OPD(cmpeq);
2607 SSE_OPD(cmplt);
2608 SSE_OPD(cmple);
2609 SSE_OPD(cmpunord);
2610 SSE_OPD(cmpneq);
2611 SSE_OPD(cmpnlt);
2612 SSE_OPD(cmpnle);
2613 SSE_OPD(cmpord);
2614 }
2615
2616 /* float to float/int */
2617 a.s[0] = 2.7;
2618 a.s[1] = 3.4;
2619 a.s[2] = 4;
2620 a.s[3] = -6.3;
2621 CVT_OP_XMM(cvtps2pd);
2622 CVT_OP_XMM(cvtss2sd);
2623 CVT_OP_XMM2MMX(cvtps2pi);
2624 CVT_OP_XMM2MMX(cvttps2pi);
2625 CVT_OP_XMM2REG(cvtss2si);
2626 CVT_OP_XMM2REG(cvttss2si);
2627 CVT_OP_XMM(cvtps2dq);
2628 CVT_OP_XMM(cvttps2dq);
2629
2630 a.d[0] = 2.6;
2631 a.d[1] = -3.4;
2632 CVT_OP_XMM(cvtpd2ps);
2633 CVT_OP_XMM(cvtsd2ss);
2634 CVT_OP_XMM2MMX(cvtpd2pi);
2635 CVT_OP_XMM2MMX(cvttpd2pi);
2636 CVT_OP_XMM2REG(cvtsd2si);
2637 CVT_OP_XMM2REG(cvttsd2si);
2638 CVT_OP_XMM(cvtpd2dq);
2639 CVT_OP_XMM(cvttpd2dq);
2640
2641 /* sse/mmx moves */
2642 CVT_OP_XMM2MMX(movdq2q);
2643 CVT_OP_MMX2XMM(movq2dq);
2644
2645 /* int to float */
2646 a.l[0] = -6;
2647 a.l[1] = 2;
2648 a.l[2] = 100;
2649 a.l[3] = -60000;
2650 CVT_OP_MMX2XMM(cvtpi2ps);
2651 CVT_OP_MMX2XMM(cvtpi2pd);
2652 CVT_OP_REG2XMM(cvtsi2ss);
2653 CVT_OP_REG2XMM(cvtsi2sd);
2654 CVT_OP_XMM(cvtdq2ps);
2655 CVT_OP_XMM(cvtdq2pd);
2656
2657 /* XXX: test PNI insns */
2658 #if 0
2659 SSE_OP2(movshdup);
2660 #endif
2661 asm volatile ("emms");
2662 }
2663
2664 #endif
2665
2666 #define TEST_CONV_RAX(op)\
2667 {\
2668 unsigned long a, r;\
2669 a = i2l(0x8234a6f8);\
2670 r = a;\
2671 asm volatile(#op : "=a" (r) : "0" (r));\
2672 printf("%-10s A=" FMTLX " R=" FMTLX "\n", #op, a, r);\
2673 }
2674
2675 #define TEST_CONV_RAX_RDX(op)\
2676 {\
2677 unsigned long a, d, r, rh; \
2678 a = i2l(0x8234a6f8);\
2679 d = i2l(0x8345a1f2);\
2680 r = a;\
2681 rh = d;\
2682 asm volatile(#op : "=a" (r), "=d" (rh) : "0" (r), "1" (rh)); \
2683 printf("%-10s A=" FMTLX " R=" FMTLX ":" FMTLX "\n", #op, a, r, rh); \
2684 }
2685
2686 void test_conv(void)
2687 {
2688 TEST_CONV_RAX(cbw);
2689 TEST_CONV_RAX(cwde);
2690 #if defined(__x86_64__)
2691 TEST_CONV_RAX(cdqe);
2692 #endif
2693
2694 TEST_CONV_RAX_RDX(cwd);
2695 TEST_CONV_RAX_RDX(cdq);
2696 #if defined(__x86_64__)
2697 TEST_CONV_RAX_RDX(cqo);
2698 #endif
2699
2700 {
2701 unsigned long a, r;
2702 a = i2l(0x12345678);
2703 asm volatile("bswapl %k0" : "=r" (r) : "0" (a));
2704 printf("%-10s: A=" FMTLX " R=" FMTLX "\n", "bswapl", a, r);
2705 }
2706 #if defined(__x86_64__)
2707 {
2708 unsigned long a, r;
2709 a = i2l(0x12345678);
2710 asm volatile("bswapq %0" : "=r" (r) : "0" (a));
2711 printf("%-10s: A=" FMTLX " R=" FMTLX "\n", "bswapq", a, r);
2712 }
2713 #endif
2714 }
2715
2716 extern void *__start_initcall;
2717 extern void *__stop_initcall;
2718
2719
2720 int main(int argc, char **argv)
2721 {
2722 void **ptr;
2723 void (*func)(void);
2724
2725 ptr = &__start_initcall;
2726 while (ptr != &__stop_initcall) {
2727 func = *ptr++;
2728 func();
2729 }
2730 test_bsx();
2731 test_mul();
2732 test_jcc();
2733 test_loop();
2734 test_floats();
2735 #if !defined(__x86_64__)
2736 test_bcd();
2737 #endif
2738 test_xchg();
2739 test_string();
2740 test_misc();
2741 test_lea();
2742 #ifdef TEST_SEGS
2743 test_segs();
2744 test_code16();
2745 #endif
2746 #ifdef TEST_VM86
2747 test_vm86();
2748 #endif
2749 #if !defined(__x86_64__)
2750 test_exceptions();
2751 test_self_modifying_code();
2752 test_single_step();
2753 #endif
2754 test_enter();
2755 test_conv();
2756 #ifdef TEST_SSE
2757 test_sse();
2758 test_fxsave();
2759 #endif
2760 return 0;
2761 }
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