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Commit | Line | Data |
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3a27ad0b | 1 | #define _GNU_SOURCE |
4d1135e4 FB |
2 | #include <stdlib.h> |
3 | #include <stdio.h> | |
6dbad63e | 4 | #include <inttypes.h> |
4d1135e4 | 5 | #include <math.h> |
3a27ad0b FB |
6 | #include <signal.h> |
7 | #include <setjmp.h> | |
8 | #include <sys/ucontext.h> | |
9 | #include <sys/mman.h> | |
10 | #include <asm/vm86.h> | |
4d1135e4 | 11 | |
03bfca94 FB |
12 | #define TEST_CMOV 0 |
13 | #define TEST_FCOMI 0 | |
5dd9488c | 14 | |
4d1135e4 FB |
15 | #define xglue(x, y) x ## y |
16 | #define glue(x, y) xglue(x, y) | |
17 | #define stringify(s) tostring(s) | |
18 | #define tostring(s) #s | |
19 | ||
20 | #define CC_C 0x0001 | |
21 | #define CC_P 0x0004 | |
22 | #define CC_A 0x0010 | |
23 | #define CC_Z 0x0040 | |
24 | #define CC_S 0x0080 | |
25 | #define CC_O 0x0800 | |
26 | ||
4d1135e4 FB |
27 | #define __init_call __attribute__ ((unused,__section__ (".initcall.init"))) |
28 | ||
29 | static void *call_start __init_call = NULL; | |
30 | ||
4b74fe1f FB |
31 | #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A) |
32 | ||
4d1135e4 FB |
33 | #define OP add |
34 | #include "test-i386.h" | |
35 | ||
36 | #define OP sub | |
37 | #include "test-i386.h" | |
38 | ||
39 | #define OP xor | |
40 | #include "test-i386.h" | |
41 | ||
42 | #define OP and | |
43 | #include "test-i386.h" | |
44 | ||
45 | #define OP or | |
46 | #include "test-i386.h" | |
47 | ||
48 | #define OP cmp | |
49 | #include "test-i386.h" | |
50 | ||
51 | #define OP adc | |
52 | #define OP_CC | |
53 | #include "test-i386.h" | |
54 | ||
55 | #define OP sbb | |
56 | #define OP_CC | |
57 | #include "test-i386.h" | |
58 | ||
59 | #define OP inc | |
60 | #define OP_CC | |
61 | #define OP1 | |
62 | #include "test-i386.h" | |
63 | ||
64 | #define OP dec | |
65 | #define OP_CC | |
66 | #define OP1 | |
67 | #include "test-i386.h" | |
68 | ||
69 | #define OP neg | |
70 | #define OP_CC | |
71 | #define OP1 | |
72 | #include "test-i386.h" | |
73 | ||
74 | #define OP not | |
75 | #define OP_CC | |
76 | #define OP1 | |
77 | #include "test-i386.h" | |
78 | ||
4b74fe1f FB |
79 | #undef CC_MASK |
80 | #define CC_MASK (CC_C | CC_P | CC_Z | CC_S | CC_O) | |
81 | ||
379ca80d FB |
82 | #define OP shl |
83 | #include "test-i386-shift.h" | |
84 | ||
85 | #define OP shr | |
86 | #include "test-i386-shift.h" | |
87 | ||
88 | #define OP sar | |
89 | #include "test-i386-shift.h" | |
90 | ||
91 | #define OP rol | |
92 | #include "test-i386-shift.h" | |
93 | ||
94 | #define OP ror | |
95 | #include "test-i386-shift.h" | |
96 | ||
97 | #define OP rcr | |
98 | #define OP_CC | |
99 | #include "test-i386-shift.h" | |
100 | ||
101 | #define OP rcl | |
102 | #define OP_CC | |
103 | #include "test-i386-shift.h" | |
104 | ||
d57c4e01 FB |
105 | #define OP shld |
106 | #define OP_SHIFTD | |
107 | #define OP_NOBYTE | |
108 | #include "test-i386-shift.h" | |
109 | ||
110 | #define OP shrd | |
111 | #define OP_SHIFTD | |
112 | #define OP_NOBYTE | |
113 | #include "test-i386-shift.h" | |
114 | ||
115 | /* XXX: should be more precise ? */ | |
116 | #undef CC_MASK | |
117 | #define CC_MASK (CC_C) | |
118 | ||
119 | #define OP bt | |
120 | #define OP_NOBYTE | |
121 | #include "test-i386-shift.h" | |
122 | ||
123 | #define OP bts | |
124 | #define OP_NOBYTE | |
125 | #include "test-i386-shift.h" | |
126 | ||
127 | #define OP btr | |
128 | #define OP_NOBYTE | |
129 | #include "test-i386-shift.h" | |
130 | ||
131 | #define OP btc | |
132 | #define OP_NOBYTE | |
133 | #include "test-i386-shift.h" | |
379ca80d | 134 | |
4d1135e4 FB |
135 | /* lea test (modrm support) */ |
136 | #define TEST_LEA(STR)\ | |
137 | {\ | |
138 | asm("leal " STR ", %0"\ | |
139 | : "=r" (res)\ | |
140 | : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\ | |
141 | printf("lea %s = %08x\n", STR, res);\ | |
142 | } | |
143 | ||
144 | #define TEST_LEA16(STR)\ | |
145 | {\ | |
146 | asm(".code16 ; .byte 0x67 ; leal " STR ", %0 ; .code32"\ | |
147 | : "=wq" (res)\ | |
148 | : "a" (eax), "b" (ebx), "c" (ecx), "d" (edx), "S" (esi), "D" (edi));\ | |
149 | printf("lea %s = %08x\n", STR, res);\ | |
150 | } | |
151 | ||
152 | ||
153 | void test_lea(void) | |
154 | { | |
155 | int eax, ebx, ecx, edx, esi, edi, res; | |
156 | eax = 0x0001; | |
157 | ebx = 0x0002; | |
158 | ecx = 0x0004; | |
159 | edx = 0x0008; | |
160 | esi = 0x0010; | |
161 | edi = 0x0020; | |
162 | ||
163 | TEST_LEA("0x4000"); | |
164 | ||
165 | TEST_LEA("(%%eax)"); | |
166 | TEST_LEA("(%%ebx)"); | |
167 | TEST_LEA("(%%ecx)"); | |
168 | TEST_LEA("(%%edx)"); | |
169 | TEST_LEA("(%%esi)"); | |
170 | TEST_LEA("(%%edi)"); | |
171 | ||
172 | TEST_LEA("0x40(%%eax)"); | |
173 | TEST_LEA("0x40(%%ebx)"); | |
174 | TEST_LEA("0x40(%%ecx)"); | |
175 | TEST_LEA("0x40(%%edx)"); | |
176 | TEST_LEA("0x40(%%esi)"); | |
177 | TEST_LEA("0x40(%%edi)"); | |
178 | ||
179 | TEST_LEA("0x4000(%%eax)"); | |
180 | TEST_LEA("0x4000(%%ebx)"); | |
181 | TEST_LEA("0x4000(%%ecx)"); | |
182 | TEST_LEA("0x4000(%%edx)"); | |
183 | TEST_LEA("0x4000(%%esi)"); | |
184 | TEST_LEA("0x4000(%%edi)"); | |
185 | ||
186 | TEST_LEA("(%%eax, %%ecx)"); | |
187 | TEST_LEA("(%%ebx, %%edx)"); | |
188 | TEST_LEA("(%%ecx, %%ecx)"); | |
189 | TEST_LEA("(%%edx, %%ecx)"); | |
190 | TEST_LEA("(%%esi, %%ecx)"); | |
191 | TEST_LEA("(%%edi, %%ecx)"); | |
192 | ||
193 | TEST_LEA("0x40(%%eax, %%ecx)"); | |
194 | TEST_LEA("0x4000(%%ebx, %%edx)"); | |
195 | ||
196 | TEST_LEA("(%%ecx, %%ecx, 2)"); | |
197 | TEST_LEA("(%%edx, %%ecx, 4)"); | |
198 | TEST_LEA("(%%esi, %%ecx, 8)"); | |
199 | ||
200 | TEST_LEA("(,%%eax, 2)"); | |
201 | TEST_LEA("(,%%ebx, 4)"); | |
202 | TEST_LEA("(,%%ecx, 8)"); | |
203 | ||
204 | TEST_LEA("0x40(,%%eax, 2)"); | |
205 | TEST_LEA("0x40(,%%ebx, 4)"); | |
206 | TEST_LEA("0x40(,%%ecx, 8)"); | |
207 | ||
208 | ||
209 | TEST_LEA("-10(%%ecx, %%ecx, 2)"); | |
210 | TEST_LEA("-10(%%edx, %%ecx, 4)"); | |
211 | TEST_LEA("-10(%%esi, %%ecx, 8)"); | |
212 | ||
213 | TEST_LEA("0x4000(%%ecx, %%ecx, 2)"); | |
214 | TEST_LEA("0x4000(%%edx, %%ecx, 4)"); | |
215 | TEST_LEA("0x4000(%%esi, %%ecx, 8)"); | |
216 | ||
217 | /* limited 16 bit addressing test */ | |
218 | TEST_LEA16("0x4000"); | |
219 | TEST_LEA16("(%%bx)"); | |
220 | TEST_LEA16("(%%si)"); | |
221 | TEST_LEA16("(%%di)"); | |
222 | TEST_LEA16("0x40(%%bx)"); | |
223 | TEST_LEA16("0x40(%%si)"); | |
224 | TEST_LEA16("0x40(%%di)"); | |
225 | TEST_LEA16("0x4000(%%bx)"); | |
226 | TEST_LEA16("0x4000(%%si)"); | |
227 | TEST_LEA16("(%%bx,%%si)"); | |
228 | TEST_LEA16("(%%bx,%%di)"); | |
229 | TEST_LEA16("0x40(%%bx,%%si)"); | |
230 | TEST_LEA16("0x40(%%bx,%%di)"); | |
231 | TEST_LEA16("0x4000(%%bx,%%si)"); | |
232 | TEST_LEA16("0x4000(%%bx,%%di)"); | |
233 | } | |
234 | ||
235 | #define TEST_JCC(JCC, v1, v2)\ | |
236 | {\ | |
5dd9488c | 237 | int res;\ |
4d1135e4 FB |
238 | asm("movl $1, %0\n\t"\ |
239 | "cmpl %2, %1\n\t"\ | |
5dd9488c | 240 | "j" JCC " 1f\n\t"\ |
4d1135e4 FB |
241 | "movl $0, %0\n\t"\ |
242 | "1:\n\t"\ | |
243 | : "=r" (res)\ | |
244 | : "r" (v1), "r" (v2));\ | |
5dd9488c FB |
245 | printf("%-10s %d\n", "j" JCC, res);\ |
246 | \ | |
247 | asm("movl $0, %0\n\t"\ | |
248 | "cmpl %2, %1\n\t"\ | |
249 | "set" JCC " %b0\n\t"\ | |
250 | : "=r" (res)\ | |
251 | : "r" (v1), "r" (v2));\ | |
252 | printf("%-10s %d\n", "set" JCC, res);\ | |
253 | if (TEST_CMOV) {\ | |
254 | asm("movl $0x12345678, %0\n\t"\ | |
255 | "cmpl %2, %1\n\t"\ | |
256 | "cmov" JCC "l %3, %0\n\t"\ | |
257 | : "=r" (res)\ | |
258 | : "r" (v1), "r" (v2), "m" (1));\ | |
259 | printf("%-10s R=0x%08x\n", "cmov" JCC "l", res);\ | |
260 | asm("movl $0x12345678, %0\n\t"\ | |
261 | "cmpl %2, %1\n\t"\ | |
262 | "cmov" JCC "w %w3, %w0\n\t"\ | |
263 | : "=r" (res)\ | |
264 | : "r" (v1), "r" (v2), "r" (1));\ | |
265 | printf("%-10s R=0x%08x\n", "cmov" JCC "w", res);\ | |
266 | } \ | |
4d1135e4 FB |
267 | } |
268 | ||
269 | /* various jump tests */ | |
270 | void test_jcc(void) | |
271 | { | |
5dd9488c FB |
272 | TEST_JCC("ne", 1, 1); |
273 | TEST_JCC("ne", 1, 0); | |
4d1135e4 | 274 | |
5dd9488c FB |
275 | TEST_JCC("e", 1, 1); |
276 | TEST_JCC("e", 1, 0); | |
4d1135e4 | 277 | |
5dd9488c FB |
278 | TEST_JCC("l", 1, 1); |
279 | TEST_JCC("l", 1, 0); | |
280 | TEST_JCC("l", 1, -1); | |
4d1135e4 | 281 | |
5dd9488c FB |
282 | TEST_JCC("le", 1, 1); |
283 | TEST_JCC("le", 1, 0); | |
284 | TEST_JCC("le", 1, -1); | |
4d1135e4 | 285 | |
5dd9488c FB |
286 | TEST_JCC("ge", 1, 1); |
287 | TEST_JCC("ge", 1, 0); | |
288 | TEST_JCC("ge", -1, 1); | |
4d1135e4 | 289 | |
5dd9488c FB |
290 | TEST_JCC("g", 1, 1); |
291 | TEST_JCC("g", 1, 0); | |
292 | TEST_JCC("g", 1, -1); | |
4d1135e4 | 293 | |
5dd9488c FB |
294 | TEST_JCC("b", 1, 1); |
295 | TEST_JCC("b", 1, 0); | |
296 | TEST_JCC("b", 1, -1); | |
4d1135e4 | 297 | |
5dd9488c FB |
298 | TEST_JCC("be", 1, 1); |
299 | TEST_JCC("be", 1, 0); | |
300 | TEST_JCC("be", 1, -1); | |
4d1135e4 | 301 | |
5dd9488c FB |
302 | TEST_JCC("ae", 1, 1); |
303 | TEST_JCC("ae", 1, 0); | |
304 | TEST_JCC("ae", 1, -1); | |
4d1135e4 | 305 | |
5dd9488c FB |
306 | TEST_JCC("a", 1, 1); |
307 | TEST_JCC("a", 1, 0); | |
308 | TEST_JCC("a", 1, -1); | |
4d1135e4 FB |
309 | |
310 | ||
5dd9488c FB |
311 | TEST_JCC("p", 1, 1); |
312 | TEST_JCC("p", 1, 0); | |
4d1135e4 | 313 | |
5dd9488c FB |
314 | TEST_JCC("np", 1, 1); |
315 | TEST_JCC("np", 1, 0); | |
4d1135e4 | 316 | |
5dd9488c FB |
317 | TEST_JCC("o", 0x7fffffff, 0); |
318 | TEST_JCC("o", 0x7fffffff, -1); | |
4d1135e4 | 319 | |
5dd9488c FB |
320 | TEST_JCC("no", 0x7fffffff, 0); |
321 | TEST_JCC("no", 0x7fffffff, -1); | |
4d1135e4 | 322 | |
5dd9488c FB |
323 | TEST_JCC("s", 0, 1); |
324 | TEST_JCC("s", 0, -1); | |
325 | TEST_JCC("s", 0, 0); | |
4d1135e4 | 326 | |
5dd9488c FB |
327 | TEST_JCC("ns", 0, 1); |
328 | TEST_JCC("ns", 0, -1); | |
329 | TEST_JCC("ns", 0, 0); | |
4d1135e4 FB |
330 | } |
331 | ||
4b74fe1f FB |
332 | #undef CC_MASK |
333 | #define CC_MASK (CC_O | CC_C) | |
334 | ||
335 | #define OP mul | |
336 | #include "test-i386-muldiv.h" | |
337 | ||
338 | #define OP imul | |
339 | #include "test-i386-muldiv.h" | |
340 | ||
341 | #undef CC_MASK | |
342 | #define CC_MASK (0) | |
343 | ||
344 | #define OP div | |
345 | #include "test-i386-muldiv.h" | |
346 | ||
347 | #define OP idiv | |
348 | #include "test-i386-muldiv.h" | |
349 | ||
350 | void test_imulw2(int op0, int op1) | |
351 | { | |
352 | int res, s1, s0, flags; | |
353 | s0 = op0; | |
354 | s1 = op1; | |
355 | res = s0; | |
356 | flags = 0; | |
357 | asm ("push %4\n\t" | |
358 | "popf\n\t" | |
359 | "imulw %w2, %w0\n\t" | |
360 | "pushf\n\t" | |
361 | "popl %1\n\t" | |
362 | : "=q" (res), "=g" (flags) | |
363 | : "q" (s1), "0" (res), "1" (flags)); | |
364 | printf("%-10s A=%08x B=%08x R=%08x CC=%04x\n", | |
365 | "imulw", s0, s1, res, flags & CC_MASK); | |
366 | } | |
367 | ||
368 | void test_imull2(int op0, int op1) | |
369 | { | |
370 | int res, s1, s0, flags; | |
371 | s0 = op0; | |
372 | s1 = op1; | |
373 | res = s0; | |
374 | flags = 0; | |
375 | asm ("push %4\n\t" | |
376 | "popf\n\t" | |
377 | "imull %2, %0\n\t" | |
378 | "pushf\n\t" | |
379 | "popl %1\n\t" | |
380 | : "=q" (res), "=g" (flags) | |
381 | : "q" (s1), "0" (res), "1" (flags)); | |
382 | printf("%-10s A=%08x B=%08x R=%08x CC=%04x\n", | |
383 | "imull", s0, s1, res, flags & CC_MASK); | |
384 | } | |
385 | ||
386 | void test_mul(void) | |
387 | { | |
388 | test_imulb(0x1234561d, 4); | |
389 | test_imulb(3, -4); | |
390 | test_imulb(0x80, 0x80); | |
391 | test_imulb(0x10, 0x10); | |
392 | ||
393 | test_imulw(0, 0x1234001d, 45); | |
394 | test_imulw(0, 23, -45); | |
395 | test_imulw(0, 0x8000, 0x8000); | |
396 | test_imulw(0, 0x100, 0x100); | |
397 | ||
398 | test_imull(0, 0x1234001d, 45); | |
399 | test_imull(0, 23, -45); | |
400 | test_imull(0, 0x80000000, 0x80000000); | |
401 | test_imull(0, 0x10000, 0x10000); | |
402 | ||
403 | test_mulb(0x1234561d, 4); | |
404 | test_mulb(3, -4); | |
405 | test_mulb(0x80, 0x80); | |
406 | test_mulb(0x10, 0x10); | |
407 | ||
408 | test_mulw(0, 0x1234001d, 45); | |
409 | test_mulw(0, 23, -45); | |
410 | test_mulw(0, 0x8000, 0x8000); | |
411 | test_mulw(0, 0x100, 0x100); | |
412 | ||
413 | test_mull(0, 0x1234001d, 45); | |
414 | test_mull(0, 23, -45); | |
415 | test_mull(0, 0x80000000, 0x80000000); | |
416 | test_mull(0, 0x10000, 0x10000); | |
417 | ||
418 | test_imulw2(0x1234001d, 45); | |
419 | test_imulw2(23, -45); | |
420 | test_imulw2(0x8000, 0x8000); | |
421 | test_imulw2(0x100, 0x100); | |
422 | ||
423 | test_imull2(0x1234001d, 45); | |
424 | test_imull2(23, -45); | |
425 | test_imull2(0x80000000, 0x80000000); | |
426 | test_imull2(0x10000, 0x10000); | |
427 | ||
428 | test_idivb(0x12341678, 0x127e); | |
429 | test_idivb(0x43210123, -5); | |
430 | test_idivb(0x12340004, -1); | |
431 | ||
432 | test_idivw(0, 0x12345678, 12347); | |
433 | test_idivw(0, -23223, -45); | |
434 | test_idivw(0, 0x12348000, -1); | |
435 | test_idivw(0x12343, 0x12345678, 0x81238567); | |
436 | ||
437 | test_idivl(0, 0x12345678, 12347); | |
438 | test_idivl(0, -233223, -45); | |
439 | test_idivl(0, 0x80000000, -1); | |
440 | test_idivl(0x12343, 0x12345678, 0x81234567); | |
441 | ||
442 | test_divb(0x12341678, 0x127e); | |
443 | test_divb(0x43210123, -5); | |
444 | test_divb(0x12340004, -1); | |
445 | ||
446 | test_divw(0, 0x12345678, 12347); | |
447 | test_divw(0, -23223, -45); | |
448 | test_divw(0, 0x12348000, -1); | |
449 | test_divw(0x12343, 0x12345678, 0x81238567); | |
450 | ||
451 | test_divl(0, 0x12345678, 12347); | |
452 | test_divl(0, -233223, -45); | |
453 | test_divl(0, 0x80000000, -1); | |
454 | test_divl(0x12343, 0x12345678, 0x81234567); | |
455 | } | |
456 | ||
9d8e9c09 FB |
457 | #define TEST_BSX(op, size, op0)\ |
458 | {\ | |
459 | int res, val, resz;\ | |
460 | val = op0;\ | |
461 | asm("xorl %1, %1 ; " #op " %" size "2, %" size "0 ; setz %b1" \ | |
462 | : "=r" (res), "=q" (resz)\ | |
463 | : "g" (val));\ | |
464 | printf("%-10s A=%08x R=%08x %d\n", #op, val, resz ? 0 : res, resz);\ | |
465 | } | |
466 | ||
467 | void test_bsx(void) | |
468 | { | |
469 | TEST_BSX(bsrw, "w", 0); | |
470 | TEST_BSX(bsrw, "w", 0x12340128); | |
471 | TEST_BSX(bsrl, "", 0); | |
472 | TEST_BSX(bsrl, "", 0x00340128); | |
473 | TEST_BSX(bsfw, "w", 0); | |
474 | TEST_BSX(bsfw, "w", 0x12340128); | |
475 | TEST_BSX(bsfl, "", 0); | |
476 | TEST_BSX(bsfl, "", 0x00340128); | |
477 | } | |
478 | ||
55480af8 FB |
479 | /**********************************************/ |
480 | ||
9d8e9c09 FB |
481 | void test_fops(double a, double b) |
482 | { | |
483 | printf("a=%f b=%f a+b=%f\n", a, b, a + b); | |
484 | printf("a=%f b=%f a-b=%f\n", a, b, a - b); | |
485 | printf("a=%f b=%f a*b=%f\n", a, b, a * b); | |
486 | printf("a=%f b=%f a/b=%f\n", a, b, a / b); | |
487 | printf("a=%f b=%f fmod(a, b)=%f\n", a, b, fmod(a, b)); | |
488 | printf("a=%f sqrt(a)=%f\n", a, sqrt(a)); | |
489 | printf("a=%f sin(a)=%f\n", a, sin(a)); | |
490 | printf("a=%f cos(a)=%f\n", a, cos(a)); | |
491 | printf("a=%f tan(a)=%f\n", a, tan(a)); | |
492 | printf("a=%f log(a)=%f\n", a, log(a)); | |
493 | printf("a=%f exp(a)=%f\n", a, exp(a)); | |
494 | printf("a=%f b=%f atan2(a, b)=%f\n", a, b, atan2(a, b)); | |
495 | /* just to test some op combining */ | |
496 | printf("a=%f asin(sin(a))=%f\n", a, asin(sin(a))); | |
497 | printf("a=%f acos(cos(a))=%f\n", a, acos(cos(a))); | |
498 | printf("a=%f atan(tan(a))=%f\n", a, atan(tan(a))); | |
499 | ||
500 | } | |
501 | ||
502 | void test_fcmp(double a, double b) | |
503 | { | |
504 | printf("(%f<%f)=%d\n", | |
505 | a, b, a < b); | |
506 | printf("(%f<=%f)=%d\n", | |
507 | a, b, a <= b); | |
508 | printf("(%f==%f)=%d\n", | |
509 | a, b, a == b); | |
510 | printf("(%f>%f)=%d\n", | |
511 | a, b, a > b); | |
512 | printf("(%f<=%f)=%d\n", | |
513 | a, b, a >= b); | |
03bfca94 FB |
514 | if (TEST_FCOMI) { |
515 | unsigned int eflags; | |
516 | /* test f(u)comi instruction */ | |
517 | asm("fcomi %2, %1\n" | |
518 | "pushf\n" | |
519 | "pop %0\n" | |
520 | : "=r" (eflags) | |
521 | : "t" (a), "u" (b)); | |
522 | printf("fcomi(%f %f)=%08x\n", a, b, eflags & (CC_Z | CC_P | CC_C)); | |
523 | } | |
9d8e9c09 FB |
524 | } |
525 | ||
526 | void test_fcvt(double a) | |
527 | { | |
528 | float fa; | |
529 | long double la; | |
530 | ||
531 | fa = a; | |
532 | la = a; | |
533 | printf("(float)%f = %f\n", a, fa); | |
534 | printf("(long double)%f = %Lf\n", a, la); | |
c5e9815d FB |
535 | printf("a=%016Lx\n", *(long long *)&a); |
536 | printf("la=%016Lx %04x\n", *(long long *)&la, | |
537 | *(unsigned short *)((char *)(&la) + 8)); | |
9d8e9c09 FB |
538 | printf("a=%f floor(a)=%f\n", a, floor(a)); |
539 | printf("a=%f ceil(a)=%f\n", a, ceil(a)); | |
540 | printf("a=%f rint(a)=%f\n", a, rint(a)); | |
541 | } | |
542 | ||
543 | #define TEST(N) \ | |
544 | asm("fld" #N : "=t" (a)); \ | |
545 | printf("fld" #N "= %f\n", a); | |
546 | ||
547 | void test_fconst(void) | |
548 | { | |
549 | double a; | |
550 | TEST(1); | |
551 | TEST(l2t); | |
552 | TEST(l2e); | |
553 | TEST(pi); | |
554 | TEST(lg2); | |
555 | TEST(ln2); | |
556 | TEST(z); | |
557 | } | |
558 | ||
c5e9815d FB |
559 | void test_fbcd(double a) |
560 | { | |
561 | unsigned short bcd[5]; | |
562 | double b; | |
563 | ||
564 | asm("fbstp %0" : "=m" (bcd[0]) : "t" (a) : "st"); | |
565 | asm("fbld %1" : "=t" (b) : "m" (bcd[0])); | |
566 | printf("a=%f bcd=%04x%04x%04x%04x%04x b=%f\n", | |
567 | a, bcd[4], bcd[3], bcd[2], bcd[1], bcd[0], b); | |
568 | } | |
569 | ||
03bfca94 FB |
570 | #define TEST_ENV(env, prefix)\ |
571 | {\ | |
572 | memset((env), 0xaa, sizeof(*(env)));\ | |
573 | asm("fld1\n"\ | |
574 | prefix "fnstenv %1\n"\ | |
575 | prefix "fldenv %1\n"\ | |
576 | : "=t" (res) : "m" (*(env)) : "st");\ | |
577 | printf("res=%f\n", res);\ | |
578 | printf("fpuc=%04x fpus=%04x fptag=%04x\n",\ | |
579 | (env)->fpuc,\ | |
580 | (env)->fpus & 0xff00,\ | |
581 | (env)->fptag);\ | |
582 | memset((env), 0xaa, sizeof(*(env)));\ | |
583 | asm("fld1\n"\ | |
584 | prefix "fnsave %1\n"\ | |
585 | prefix "frstor %1\n"\ | |
586 | : "=t" (res) : "m" (*(env)) : "st");\ | |
587 | printf("res=%f\n", res);\ | |
588 | printf("fpuc=%04x fpus=%04x fptag=%04x\n",\ | |
589 | (env)->fpuc,\ | |
590 | (env)->fpus & 0xff00,\ | |
591 | (env)->fptag);\ | |
592 | printf("ST(0) = %Lf\n",\ | |
593 | (env)->fpregs[0]);\ | |
594 | } | |
595 | ||
596 | void test_fenv(void) | |
597 | { | |
598 | struct __attribute__((packed)) { | |
599 | uint16_t fpuc; | |
600 | uint16_t dummy1; | |
601 | uint16_t fpus; | |
602 | uint16_t dummy2; | |
603 | uint16_t fptag; | |
604 | uint16_t dummy3; | |
605 | uint32_t ignored[4]; | |
606 | long double fpregs[8]; | |
607 | } float_env32; | |
608 | struct __attribute__((packed)) { | |
609 | uint16_t fpuc; | |
610 | uint16_t fpus; | |
611 | uint16_t fptag; | |
612 | uint16_t ignored[4]; | |
613 | long double fpregs[8]; | |
614 | } float_env16; | |
615 | double res; | |
616 | ||
617 | TEST_ENV(&float_env16, "data16 "); | |
618 | TEST_ENV(&float_env32, ""); | |
619 | } | |
620 | ||
9d8e9c09 FB |
621 | void test_floats(void) |
622 | { | |
623 | test_fops(2, 3); | |
624 | test_fops(1.4, -5); | |
625 | test_fcmp(2, -1); | |
626 | test_fcmp(2, 2); | |
627 | test_fcmp(2, 3); | |
628 | test_fcvt(1.0/7.0); | |
629 | test_fcvt(-1.0/9.0); | |
630 | test_fcvt(1e30); | |
631 | test_fconst(); | |
c5e9815d FB |
632 | test_fbcd(1234567890123456); |
633 | test_fbcd(-123451234567890); | |
03bfca94 | 634 | test_fenv(); |
9d8e9c09 | 635 | } |
4b74fe1f | 636 | |
55480af8 FB |
637 | /**********************************************/ |
638 | ||
639 | #define TEST_BCD(op, op0, cc_in, cc_mask)\ | |
640 | {\ | |
641 | int res, flags;\ | |
642 | res = op0;\ | |
643 | flags = cc_in;\ | |
644 | asm ("push %3\n\t"\ | |
645 | "popf\n\t"\ | |
646 | #op "\n\t"\ | |
647 | "pushf\n\t"\ | |
648 | "popl %1\n\t"\ | |
649 | : "=a" (res), "=g" (flags)\ | |
650 | : "0" (res), "1" (flags));\ | |
651 | printf("%-10s A=%08x R=%08x CCIN=%04x CC=%04x\n",\ | |
652 | #op, op0, res, cc_in, flags & cc_mask);\ | |
653 | } | |
654 | ||
655 | void test_bcd(void) | |
656 | { | |
657 | TEST_BCD(daa, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
658 | TEST_BCD(daa, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
659 | TEST_BCD(daa, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
660 | TEST_BCD(daa, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
661 | TEST_BCD(daa, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
662 | TEST_BCD(daa, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
663 | TEST_BCD(daa, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
664 | TEST_BCD(daa, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
665 | TEST_BCD(daa, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
666 | TEST_BCD(daa, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
667 | TEST_BCD(daa, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
668 | TEST_BCD(daa, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
669 | TEST_BCD(daa, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
670 | ||
671 | TEST_BCD(das, 0x12340503, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
672 | TEST_BCD(das, 0x12340506, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
673 | TEST_BCD(das, 0x12340507, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
674 | TEST_BCD(das, 0x12340559, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
675 | TEST_BCD(das, 0x12340560, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
676 | TEST_BCD(das, 0x1234059f, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
677 | TEST_BCD(das, 0x123405a0, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
678 | TEST_BCD(das, 0x12340503, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
679 | TEST_BCD(das, 0x12340506, 0, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
680 | TEST_BCD(das, 0x12340503, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
681 | TEST_BCD(das, 0x12340506, CC_C, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
682 | TEST_BCD(das, 0x12340503, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
683 | TEST_BCD(das, 0x12340506, CC_C | CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_A)); | |
684 | ||
685 | TEST_BCD(aaa, 0x12340205, CC_A, (CC_C | CC_A)); | |
686 | TEST_BCD(aaa, 0x12340306, CC_A, (CC_C | CC_A)); | |
687 | TEST_BCD(aaa, 0x1234040a, CC_A, (CC_C | CC_A)); | |
688 | TEST_BCD(aaa, 0x123405fa, CC_A, (CC_C | CC_A)); | |
689 | TEST_BCD(aaa, 0x12340205, 0, (CC_C | CC_A)); | |
690 | TEST_BCD(aaa, 0x12340306, 0, (CC_C | CC_A)); | |
691 | TEST_BCD(aaa, 0x1234040a, 0, (CC_C | CC_A)); | |
692 | TEST_BCD(aaa, 0x123405fa, 0, (CC_C | CC_A)); | |
693 | ||
694 | TEST_BCD(aas, 0x12340205, CC_A, (CC_C | CC_A)); | |
695 | TEST_BCD(aas, 0x12340306, CC_A, (CC_C | CC_A)); | |
696 | TEST_BCD(aas, 0x1234040a, CC_A, (CC_C | CC_A)); | |
697 | TEST_BCD(aas, 0x123405fa, CC_A, (CC_C | CC_A)); | |
698 | TEST_BCD(aas, 0x12340205, 0, (CC_C | CC_A)); | |
699 | TEST_BCD(aas, 0x12340306, 0, (CC_C | CC_A)); | |
700 | TEST_BCD(aas, 0x1234040a, 0, (CC_C | CC_A)); | |
701 | TEST_BCD(aas, 0x123405fa, 0, (CC_C | CC_A)); | |
702 | ||
703 | TEST_BCD(aam, 0x12340547, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)); | |
704 | TEST_BCD(aad, 0x12340407, CC_A, (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A)); | |
705 | } | |
706 | ||
e5918247 FB |
707 | #define TEST_XCHG(op, size, opconst)\ |
708 | {\ | |
709 | int op0, op1;\ | |
710 | op0 = 0x12345678;\ | |
711 | op1 = 0xfbca7654;\ | |
712 | asm(#op " %" size "0, %" size "1" \ | |
713 | : "=q" (op0), opconst (op1) \ | |
714 | : "0" (op0), "1" (op1));\ | |
715 | printf("%-10s A=%08x B=%08x\n",\ | |
716 | #op, op0, op1);\ | |
717 | } | |
718 | ||
719 | #define TEST_CMPXCHG(op, size, opconst, eax)\ | |
720 | {\ | |
721 | int op0, op1;\ | |
722 | op0 = 0x12345678;\ | |
723 | op1 = 0xfbca7654;\ | |
724 | asm(#op " %" size "0, %" size "1" \ | |
725 | : "=q" (op0), opconst (op1) \ | |
726 | : "0" (op0), "1" (op1), "a" (eax));\ | |
727 | printf("%-10s EAX=%08x A=%08x C=%08x\n",\ | |
728 | #op, eax, op0, op1);\ | |
729 | } | |
730 | ||
731 | void test_xchg(void) | |
732 | { | |
733 | TEST_XCHG(xchgl, "", "=q"); | |
734 | TEST_XCHG(xchgw, "w", "=q"); | |
735 | TEST_XCHG(xchgb, "b", "=q"); | |
736 | ||
737 | TEST_XCHG(xchgl, "", "=m"); | |
738 | TEST_XCHG(xchgw, "w", "=m"); | |
739 | TEST_XCHG(xchgb, "b", "=m"); | |
740 | ||
741 | TEST_XCHG(xaddl, "", "=q"); | |
742 | TEST_XCHG(xaddw, "w", "=q"); | |
743 | TEST_XCHG(xaddb, "b", "=q"); | |
744 | ||
745 | TEST_XCHG(xaddl, "", "=m"); | |
746 | TEST_XCHG(xaddw, "w", "=m"); | |
747 | TEST_XCHG(xaddb, "b", "=m"); | |
748 | ||
749 | TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfbca7654); | |
750 | TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654); | |
751 | TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654); | |
752 | ||
753 | TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfffefdfc); | |
754 | TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc); | |
755 | TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc); | |
756 | ||
757 | TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfbca7654); | |
758 | TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654); | |
759 | TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654); | |
760 | ||
761 | TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfffefdfc); | |
762 | TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc); | |
763 | TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc); | |
764 | } | |
765 | ||
6dbad63e FB |
766 | /**********************************************/ |
767 | /* segmentation tests */ | |
768 | ||
769 | #include <asm/ldt.h> | |
770 | #include <linux/unistd.h> | |
771 | ||
772 | _syscall3(int, modify_ldt, int, func, void *, ptr, unsigned long, bytecount) | |
773 | ||
774 | uint8_t seg_data1[4096]; | |
775 | uint8_t seg_data2[4096]; | |
776 | ||
e5918247 | 777 | #define MK_SEL(n) (((n) << 3) | 7) |
6dbad63e | 778 | |
288426fe FB |
779 | #define TEST_LR(op, size, seg, mask)\ |
780 | {\ | |
781 | int res, res2;\ | |
782 | res = 0x12345678;\ | |
783 | asm (op " %" size "2, %" size "0\n" \ | |
784 | "movl $0, %1\n"\ | |
785 | "jnz 1f\n"\ | |
786 | "movl $1, %1\n"\ | |
787 | "1:\n"\ | |
788 | : "=r" (res), "=r" (res2) : "m" (seg), "0" (res));\ | |
789 | printf(op ": Z=%d %08x\n", res2, res & ~(mask));\ | |
790 | } | |
791 | ||
6dbad63e FB |
792 | /* NOTE: we use Linux modify_ldt syscall */ |
793 | void test_segs(void) | |
794 | { | |
795 | struct modify_ldt_ldt_s ldt; | |
796 | long long ldt_table[3]; | |
04369ff2 | 797 | int res, res2; |
6dbad63e | 798 | char tmp; |
e1d4294a FB |
799 | struct { |
800 | uint32_t offset; | |
801 | uint16_t seg; | |
802 | } __attribute__((packed)) segoff; | |
6dbad63e FB |
803 | |
804 | ldt.entry_number = 1; | |
805 | ldt.base_addr = (unsigned long)&seg_data1; | |
806 | ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12; | |
807 | ldt.seg_32bit = 1; | |
808 | ldt.contents = MODIFY_LDT_CONTENTS_DATA; | |
809 | ldt.read_exec_only = 0; | |
810 | ldt.limit_in_pages = 1; | |
811 | ldt.seg_not_present = 0; | |
812 | ldt.useable = 1; | |
813 | modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ | |
814 | ||
815 | ldt.entry_number = 2; | |
816 | ldt.base_addr = (unsigned long)&seg_data2; | |
817 | ldt.limit = (sizeof(seg_data2) + 0xfff) >> 12; | |
818 | ldt.seg_32bit = 1; | |
819 | ldt.contents = MODIFY_LDT_CONTENTS_DATA; | |
820 | ldt.read_exec_only = 0; | |
821 | ldt.limit_in_pages = 1; | |
822 | ldt.seg_not_present = 0; | |
823 | ldt.useable = 1; | |
824 | modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ | |
825 | ||
826 | modify_ldt(0, &ldt_table, sizeof(ldt_table)); /* read ldt entries */ | |
04369ff2 FB |
827 | #if 0 |
828 | { | |
829 | int i; | |
830 | for(i=0;i<3;i++) | |
831 | printf("%d: %016Lx\n", i, ldt_table[i]); | |
832 | } | |
833 | #endif | |
6dbad63e FB |
834 | /* do some tests with fs or gs */ |
835 | asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1))); | |
836 | asm volatile ("movl %0, %%gs" : : "r" (MK_SEL(2))); | |
837 | ||
838 | seg_data1[1] = 0xaa; | |
839 | seg_data2[1] = 0x55; | |
840 | ||
841 | asm volatile ("fs movzbl 0x1, %0" : "=r" (res)); | |
842 | printf("FS[1] = %02x\n", res); | |
843 | ||
844 | asm volatile ("gs movzbl 0x1, %0" : "=r" (res)); | |
845 | printf("GS[1] = %02x\n", res); | |
846 | ||
847 | /* tests with ds/ss (implicit segment case) */ | |
848 | tmp = 0xa5; | |
849 | asm volatile ("pushl %%ebp\n\t" | |
850 | "pushl %%ds\n\t" | |
851 | "movl %2, %%ds\n\t" | |
852 | "movl %3, %%ebp\n\t" | |
853 | "movzbl 0x1, %0\n\t" | |
854 | "movzbl (%%ebp), %1\n\t" | |
855 | "popl %%ds\n\t" | |
856 | "popl %%ebp\n\t" | |
857 | : "=r" (res), "=r" (res2) | |
858 | : "r" (MK_SEL(1)), "r" (&tmp)); | |
859 | printf("DS[1] = %02x\n", res); | |
860 | printf("SS[tmp] = %02x\n", res2); | |
e1d4294a FB |
861 | |
862 | segoff.seg = MK_SEL(2); | |
863 | segoff.offset = 0xabcdef12; | |
864 | asm volatile("lfs %2, %0\n\t" | |
865 | "movl %%fs, %1\n\t" | |
866 | : "=r" (res), "=g" (res2) | |
867 | : "m" (segoff)); | |
868 | printf("FS:reg = %04x:%08x\n", res2, res); | |
288426fe FB |
869 | |
870 | TEST_LR("larw", "w", MK_SEL(2), 0x0100); | |
871 | TEST_LR("larl", "", MK_SEL(2), 0x0100); | |
872 | TEST_LR("lslw", "w", MK_SEL(2), 0); | |
873 | TEST_LR("lsll", "", MK_SEL(2), 0); | |
874 | ||
875 | TEST_LR("larw", "w", 0xfff8, 0); | |
876 | TEST_LR("larl", "", 0xfff8, 0); | |
877 | TEST_LR("lslw", "w", 0xfff8, 0); | |
878 | TEST_LR("lsll", "", 0xfff8, 0); | |
6dbad63e | 879 | } |
55480af8 | 880 | |
e5918247 FB |
881 | /* 16 bit code test */ |
882 | extern char code16_start, code16_end; | |
883 | extern char code16_func1; | |
884 | extern char code16_func2; | |
885 | extern char code16_func3; | |
a300e691 | 886 | |
e5918247 | 887 | void test_code16(void) |
1a9353d2 | 888 | { |
e5918247 FB |
889 | struct modify_ldt_ldt_s ldt; |
890 | int res, res2; | |
a300e691 | 891 | |
e5918247 FB |
892 | /* build a code segment */ |
893 | ldt.entry_number = 1; | |
894 | ldt.base_addr = (unsigned long)&code16_start; | |
895 | ldt.limit = &code16_end - &code16_start; | |
896 | ldt.seg_32bit = 0; | |
897 | ldt.contents = MODIFY_LDT_CONTENTS_CODE; | |
898 | ldt.read_exec_only = 0; | |
899 | ldt.limit_in_pages = 0; | |
900 | ldt.seg_not_present = 0; | |
901 | ldt.useable = 1; | |
902 | modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ | |
a300e691 | 903 | |
e5918247 FB |
904 | /* call the first function */ |
905 | asm volatile ("lcall %1, %2" | |
906 | : "=a" (res) | |
907 | : "i" (MK_SEL(1)), "i" (&code16_func1): "memory", "cc"); | |
908 | printf("func1() = 0x%08x\n", res); | |
909 | asm volatile ("lcall %2, %3" | |
910 | : "=a" (res), "=c" (res2) | |
911 | : "i" (MK_SEL(1)), "i" (&code16_func2): "memory", "cc"); | |
912 | printf("func2() = 0x%08x spdec=%d\n", res, res2); | |
913 | asm volatile ("lcall %1, %2" | |
914 | : "=a" (res) | |
915 | : "i" (MK_SEL(1)), "i" (&code16_func3): "memory", "cc"); | |
916 | printf("func3() = 0x%08x\n", res); | |
1a9353d2 FB |
917 | } |
918 | ||
e1d4294a FB |
919 | void test_misc(void) |
920 | { | |
921 | char table[256]; | |
922 | int res, i; | |
923 | ||
924 | for(i=0;i<256;i++) table[i] = 256 - i; | |
925 | res = 0x12345678; | |
926 | asm ("xlat" : "=a" (res) : "b" (table), "0" (res)); | |
927 | printf("xlat: EAX=%08x\n", res); | |
928 | } | |
929 | ||
930 | uint8_t str_buffer[4096]; | |
931 | ||
932 | #define TEST_STRING1(OP, size, DF, REP)\ | |
933 | {\ | |
934 | int esi, edi, eax, ecx, eflags;\ | |
935 | \ | |
936 | esi = (long)(str_buffer + sizeof(str_buffer) / 2);\ | |
937 | edi = (long)(str_buffer + sizeof(str_buffer) / 2) + 16;\ | |
938 | eax = 0x12345678;\ | |
939 | ecx = 17;\ | |
940 | \ | |
941 | asm volatile ("pushl $0\n\t"\ | |
942 | "popf\n\t"\ | |
943 | DF "\n\t"\ | |
944 | REP #OP size "\n\t"\ | |
945 | "cld\n\t"\ | |
946 | "pushf\n\t"\ | |
947 | "popl %4\n\t"\ | |
948 | : "=S" (esi), "=D" (edi), "=a" (eax), "=c" (ecx), "=g" (eflags)\ | |
949 | : "0" (esi), "1" (edi), "2" (eax), "3" (ecx));\ | |
950 | printf("%-10s ESI=%08x EDI=%08x EAX=%08x ECX=%08x EFL=%04x\n",\ | |
951 | REP #OP size, esi, edi, eax, ecx,\ | |
952 | eflags & (CC_C | CC_P | CC_Z | CC_S | CC_O | CC_A));\ | |
953 | } | |
954 | ||
955 | #define TEST_STRING(OP, REP)\ | |
956 | TEST_STRING1(OP, "b", "", REP);\ | |
957 | TEST_STRING1(OP, "w", "", REP);\ | |
958 | TEST_STRING1(OP, "l", "", REP);\ | |
959 | TEST_STRING1(OP, "b", "std", REP);\ | |
960 | TEST_STRING1(OP, "w", "std", REP);\ | |
961 | TEST_STRING1(OP, "l", "std", REP) | |
962 | ||
963 | void test_string(void) | |
964 | { | |
965 | int i; | |
966 | for(i = 0;i < sizeof(str_buffer); i++) | |
967 | str_buffer[i] = i + 0x56; | |
968 | TEST_STRING(stos, ""); | |
969 | TEST_STRING(stos, "rep "); | |
970 | TEST_STRING(lods, ""); /* to verify stos */ | |
971 | TEST_STRING(lods, "rep "); | |
972 | TEST_STRING(movs, ""); | |
973 | TEST_STRING(movs, "rep "); | |
974 | TEST_STRING(lods, ""); /* to verify stos */ | |
975 | ||
976 | /* XXX: better tests */ | |
977 | TEST_STRING(scas, ""); | |
978 | TEST_STRING(scas, "repz "); | |
979 | TEST_STRING(scas, "repnz "); | |
980 | TEST_STRING(cmps, ""); | |
981 | TEST_STRING(cmps, "repz "); | |
982 | TEST_STRING(cmps, "repnz "); | |
983 | } | |
e5918247 | 984 | |
3a27ad0b FB |
985 | /* VM86 test */ |
986 | ||
987 | static inline void set_bit(uint8_t *a, unsigned int bit) | |
988 | { | |
989 | a[bit / 8] |= (1 << (bit % 8)); | |
990 | } | |
991 | ||
992 | static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg) | |
993 | { | |
994 | return (uint8_t *)((seg << 4) + (reg & 0xffff)); | |
995 | } | |
996 | ||
997 | static inline void pushw(struct vm86_regs *r, int val) | |
998 | { | |
999 | r->esp = (r->esp & ~0xffff) | ((r->esp - 2) & 0xffff); | |
1000 | *(uint16_t *)seg_to_linear(r->ss, r->esp) = val; | |
1001 | } | |
1002 | ||
1003 | #undef __syscall_return | |
1004 | #define __syscall_return(type, res) \ | |
1005 | do { \ | |
1006 | return (type) (res); \ | |
1007 | } while (0) | |
1008 | ||
1009 | _syscall2(int, vm86, int, func, struct vm86plus_struct *, v86) | |
1010 | ||
1011 | extern char vm86_code_start; | |
1012 | extern char vm86_code_end; | |
1013 | ||
1014 | #define VM86_CODE_CS 0x100 | |
1015 | #define VM86_CODE_IP 0x100 | |
1016 | ||
1017 | void test_vm86(void) | |
1018 | { | |
1019 | struct vm86plus_struct ctx; | |
1020 | struct vm86_regs *r; | |
1021 | uint8_t *vm86_mem; | |
1022 | int seg, ret; | |
1023 | ||
1024 | vm86_mem = mmap((void *)0x00000000, 0x110000, | |
1025 | PROT_WRITE | PROT_READ | PROT_EXEC, | |
1026 | MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0); | |
1027 | if (vm86_mem == MAP_FAILED) { | |
1028 | printf("ERROR: could not map vm86 memory"); | |
1029 | return; | |
1030 | } | |
1031 | memset(&ctx, 0, sizeof(ctx)); | |
1032 | ||
1033 | /* init basic registers */ | |
1034 | r = &ctx.regs; | |
1035 | r->eip = VM86_CODE_IP; | |
1036 | r->esp = 0xfffe; | |
1037 | seg = VM86_CODE_CS; | |
1038 | r->cs = seg; | |
1039 | r->ss = seg; | |
1040 | r->ds = seg; | |
1041 | r->es = seg; | |
1042 | r->fs = seg; | |
1043 | r->gs = seg; | |
1044 | r->eflags = VIF_MASK; | |
1045 | ||
1046 | /* move code to proper address. We use the same layout as a .com | |
1047 | dos program. */ | |
1048 | memcpy(vm86_mem + (VM86_CODE_CS << 4) + VM86_CODE_IP, | |
1049 | &vm86_code_start, &vm86_code_end - &vm86_code_start); | |
1050 | ||
1051 | /* mark int 0x21 as being emulated */ | |
1052 | set_bit((uint8_t *)&ctx.int_revectored, 0x21); | |
1053 | ||
1054 | for(;;) { | |
1055 | ret = vm86(VM86_ENTER, &ctx); | |
1056 | switch(VM86_TYPE(ret)) { | |
1057 | case VM86_INTx: | |
1058 | { | |
1059 | int int_num, ah; | |
1060 | ||
1061 | int_num = VM86_ARG(ret); | |
1062 | if (int_num != 0x21) | |
1063 | goto unknown_int; | |
1064 | ah = (r->eax >> 8) & 0xff; | |
1065 | switch(ah) { | |
1066 | case 0x00: /* exit */ | |
1067 | goto the_end; | |
1068 | case 0x02: /* write char */ | |
1069 | { | |
1070 | uint8_t c = r->edx; | |
1071 | putchar(c); | |
1072 | } | |
1073 | break; | |
1074 | case 0x09: /* write string */ | |
1075 | { | |
1076 | uint8_t c, *ptr; | |
1077 | ptr = seg_to_linear(r->ds, r->edx); | |
1078 | for(;;) { | |
1079 | c = *ptr++; | |
1080 | if (c == '$') | |
1081 | break; | |
1082 | putchar(c); | |
1083 | } | |
1084 | r->eax = (r->eax & ~0xff) | '$'; | |
1085 | } | |
1086 | break; | |
1087 | case 0xff: /* extension: write hex number in edx */ | |
1088 | printf("%08x\n", (int)r->edx); | |
1089 | break; | |
1090 | default: | |
1091 | unknown_int: | |
1092 | printf("unsupported int 0x%02x\n", int_num); | |
1093 | goto the_end; | |
1094 | } | |
1095 | } | |
1096 | break; | |
1097 | case VM86_SIGNAL: | |
1098 | /* a signal came, we just ignore that */ | |
1099 | break; | |
1100 | case VM86_STI: | |
1101 | break; | |
1102 | default: | |
1103 | printf("ERROR: unhandled vm86 return code (0x%x)\n", ret); | |
1104 | goto the_end; | |
1105 | } | |
1106 | } | |
1107 | the_end: | |
1108 | printf("VM86 end\n"); | |
1109 | munmap(vm86_mem, 0x110000); | |
1110 | } | |
1111 | ||
1112 | /* exception tests */ | |
1113 | #ifndef REG_EAX | |
1114 | #define REG_EAX EAX | |
1115 | #define REG_EBX EBX | |
1116 | #define REG_ECX ECX | |
1117 | #define REG_EDX EDX | |
1118 | #define REG_ESI ESI | |
1119 | #define REG_EDI EDI | |
1120 | #define REG_EBP EBP | |
1121 | #define REG_ESP ESP | |
1122 | #define REG_EIP EIP | |
1123 | #define REG_EFL EFL | |
1124 | #define REG_TRAPNO TRAPNO | |
1125 | #define REG_ERR ERR | |
1126 | #endif | |
1127 | ||
1128 | jmp_buf jmp_env; | |
3a27ad0b FB |
1129 | int v1; |
1130 | int tab[2]; | |
1131 | ||
1132 | void sig_handler(int sig, siginfo_t *info, void *puc) | |
1133 | { | |
1134 | struct ucontext *uc = puc; | |
1135 | ||
1136 | printf("si_signo=%d si_errno=%d si_code=%d", | |
1137 | info->si_signo, info->si_errno, info->si_code); | |
e3b32540 FB |
1138 | printf(" si_addr=0x%08lx", |
1139 | (unsigned long)info->si_addr); | |
3a27ad0b FB |
1140 | printf("\n"); |
1141 | ||
1142 | printf("trapno=0x%02x err=0x%08x", | |
1143 | uc->uc_mcontext.gregs[REG_TRAPNO], | |
1144 | uc->uc_mcontext.gregs[REG_ERR]); | |
e3b32540 | 1145 | printf(" EIP=0x%08x", uc->uc_mcontext.gregs[REG_EIP]); |
3a27ad0b FB |
1146 | printf("\n"); |
1147 | longjmp(jmp_env, 1); | |
1148 | } | |
1149 | ||
1150 | void test_exceptions(void) | |
1151 | { | |
e3b32540 | 1152 | struct modify_ldt_ldt_s ldt; |
3a27ad0b FB |
1153 | struct sigaction act; |
1154 | volatile int val; | |
1155 | ||
1156 | act.sa_sigaction = sig_handler; | |
1157 | sigemptyset(&act.sa_mask); | |
1158 | act.sa_flags = SA_SIGINFO; | |
1159 | sigaction(SIGFPE, &act, NULL); | |
1160 | sigaction(SIGILL, &act, NULL); | |
1161 | sigaction(SIGSEGV, &act, NULL); | |
e3b32540 | 1162 | sigaction(SIGBUS, &act, NULL); |
3a27ad0b FB |
1163 | sigaction(SIGTRAP, &act, NULL); |
1164 | ||
1165 | /* test division by zero reporting */ | |
e3b32540 | 1166 | printf("DIVZ exception:\n"); |
3a27ad0b FB |
1167 | if (setjmp(jmp_env) == 0) { |
1168 | /* now divide by zero */ | |
1169 | v1 = 0; | |
1170 | v1 = 2 / v1; | |
1171 | } | |
1172 | ||
e3b32540 | 1173 | printf("BOUND exception:\n"); |
3a27ad0b FB |
1174 | if (setjmp(jmp_env) == 0) { |
1175 | /* bound exception */ | |
1176 | tab[0] = 1; | |
1177 | tab[1] = 10; | |
1178 | asm volatile ("bound %0, %1" : : "r" (11), "m" (tab)); | |
1179 | } | |
1180 | ||
e3b32540 FB |
1181 | printf("segment exceptions:\n"); |
1182 | if (setjmp(jmp_env) == 0) { | |
1183 | /* load an invalid segment */ | |
1184 | asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1)); | |
1185 | } | |
1186 | if (setjmp(jmp_env) == 0) { | |
1187 | /* null data segment is valid */ | |
1188 | asm volatile ("movl %0, %%fs" : : "r" (3)); | |
1189 | /* null stack segment */ | |
1190 | asm volatile ("movl %0, %%ss" : : "r" (3)); | |
1191 | } | |
1192 | ||
1193 | ldt.entry_number = 1; | |
1194 | ldt.base_addr = (unsigned long)&seg_data1; | |
1195 | ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12; | |
1196 | ldt.seg_32bit = 1; | |
1197 | ldt.contents = MODIFY_LDT_CONTENTS_DATA; | |
1198 | ldt.read_exec_only = 0; | |
1199 | ldt.limit_in_pages = 1; | |
1200 | ldt.seg_not_present = 1; | |
1201 | ldt.useable = 1; | |
1202 | modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */ | |
1203 | ||
1204 | if (setjmp(jmp_env) == 0) { | |
1205 | /* segment not present */ | |
1206 | asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1))); | |
1207 | } | |
1208 | ||
3a27ad0b | 1209 | /* test SEGV reporting */ |
e3b32540 | 1210 | printf("PF exception:\n"); |
3a27ad0b | 1211 | if (setjmp(jmp_env) == 0) { |
e3b32540 | 1212 | val = 1; |
3a27ad0b FB |
1213 | /* now store in an invalid address */ |
1214 | *(char *)0x1234 = 1; | |
1215 | } | |
1216 | ||
1217 | /* test SEGV reporting */ | |
e3b32540 | 1218 | printf("PF exception:\n"); |
3a27ad0b | 1219 | if (setjmp(jmp_env) == 0) { |
e3b32540 | 1220 | val = 1; |
3a27ad0b FB |
1221 | /* read from an invalid address */ |
1222 | v1 = *(char *)0x1234; | |
1223 | } | |
1224 | ||
3a27ad0b FB |
1225 | /* test illegal instruction reporting */ |
1226 | printf("UD2 exception:\n"); | |
1227 | if (setjmp(jmp_env) == 0) { | |
1228 | /* now execute an invalid instruction */ | |
1229 | asm volatile("ud2"); | |
1230 | } | |
1231 | ||
1232 | printf("INT exception:\n"); | |
1233 | if (setjmp(jmp_env) == 0) { | |
1234 | asm volatile ("int $0xfd"); | |
1235 | } | |
e3b32540 FB |
1236 | if (setjmp(jmp_env) == 0) { |
1237 | asm volatile ("int $0x01"); | |
1238 | } | |
1239 | if (setjmp(jmp_env) == 0) { | |
1240 | asm volatile (".byte 0xcd, 0x03"); | |
1241 | } | |
1242 | if (setjmp(jmp_env) == 0) { | |
1243 | asm volatile ("int $0x04"); | |
1244 | } | |
1245 | if (setjmp(jmp_env) == 0) { | |
1246 | asm volatile ("int $0x05"); | |
1247 | } | |
3a27ad0b FB |
1248 | |
1249 | printf("INT3 exception:\n"); | |
1250 | if (setjmp(jmp_env) == 0) { | |
1251 | asm volatile ("int3"); | |
1252 | } | |
1253 | ||
1254 | printf("CLI exception:\n"); | |
1255 | if (setjmp(jmp_env) == 0) { | |
1256 | asm volatile ("cli"); | |
1257 | } | |
1258 | ||
1259 | printf("STI exception:\n"); | |
1260 | if (setjmp(jmp_env) == 0) { | |
1261 | asm volatile ("cli"); | |
1262 | } | |
1263 | ||
1264 | printf("INTO exception:\n"); | |
1265 | if (setjmp(jmp_env) == 0) { | |
1266 | /* overflow exception */ | |
1267 | asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff)); | |
1268 | } | |
1269 | ||
1270 | printf("OUTB exception:\n"); | |
1271 | if (setjmp(jmp_env) == 0) { | |
1272 | asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0)); | |
1273 | } | |
1274 | ||
1275 | printf("INB exception:\n"); | |
1276 | if (setjmp(jmp_env) == 0) { | |
1277 | asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321)); | |
1278 | } | |
1279 | ||
1280 | printf("REP OUTSB exception:\n"); | |
1281 | if (setjmp(jmp_env) == 0) { | |
1282 | asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1)); | |
1283 | } | |
1284 | ||
1285 | printf("REP INSB exception:\n"); | |
1286 | if (setjmp(jmp_env) == 0) { | |
1287 | asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1)); | |
1288 | } | |
1289 | ||
1290 | printf("HLT exception:\n"); | |
1291 | if (setjmp(jmp_env) == 0) { | |
1292 | asm volatile ("hlt"); | |
1293 | } | |
1294 | ||
1295 | printf("single step exception:\n"); | |
1296 | val = 0; | |
1297 | if (setjmp(jmp_env) == 0) { | |
1298 | asm volatile ("pushf\n" | |
1299 | "orl $0x00100, (%%esp)\n" | |
1300 | "popf\n" | |
1301 | "movl $0xabcd, %0\n" | |
1302 | "movl $0x0, %0\n" : "=m" (val) : : "cc", "memory"); | |
1303 | } | |
1304 | printf("val=0x%x\n", val); | |
1305 | } | |
1306 | ||
1307 | /* self modifying code test */ | |
1308 | uint8_t code[] = { | |
1309 | 0xb8, 0x1, 0x00, 0x00, 0x00, /* movl $1, %eax */ | |
1310 | 0xc3, /* ret */ | |
1311 | }; | |
1312 | ||
d1fe2b24 FB |
1313 | typedef int FuncType(void); |
1314 | ||
3a27ad0b FB |
1315 | void test_self_modifying_code(void) |
1316 | { | |
d1fe2b24 | 1317 | int i; |
3a27ad0b | 1318 | |
3a27ad0b | 1319 | printf("self modifying code:\n"); |
d1fe2b24 FB |
1320 | printf("func1 = 0x%x\n", ((FuncType *)code)()); |
1321 | for(i = 2; i <= 4; i++) { | |
1322 | code[1] = i; | |
1323 | printf("func%d = 0x%x\n", i, ((FuncType *)code)()); | |
1324 | } | |
3a27ad0b FB |
1325 | } |
1326 | ||
4d1135e4 FB |
1327 | static void *call_end __init_call = NULL; |
1328 | ||
1329 | int main(int argc, char **argv) | |
1330 | { | |
1331 | void **ptr; | |
1332 | void (*func)(void); | |
4b74fe1f | 1333 | |
4d1135e4 FB |
1334 | ptr = &call_start + 1; |
1335 | while (*ptr != NULL) { | |
1336 | func = *ptr++; | |
1337 | func(); | |
1338 | } | |
9d8e9c09 | 1339 | test_bsx(); |
d57c4e01 | 1340 | test_mul(); |
4d1135e4 | 1341 | test_jcc(); |
9d8e9c09 | 1342 | test_floats(); |
55480af8 | 1343 | test_bcd(); |
1a9353d2 | 1344 | test_xchg(); |
e1d4294a FB |
1345 | test_string(); |
1346 | test_misc(); | |
6dbad63e FB |
1347 | test_lea(); |
1348 | test_segs(); | |
e5918247 | 1349 | test_code16(); |
3a27ad0b FB |
1350 | test_vm86(); |
1351 | test_exceptions(); | |
1352 | test_self_modifying_code(); | |
4d1135e4 FB |
1353 | return 0; |
1354 | } |