1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2011, Richard Lowe
14 */
15
16 #ifndef _FENV_INLINES_H
17 #define _FENV_INLINES_H
18
19 #ifdef __GNUC__
20
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24
25 #include <sys/types.h>
26
27 #if defined(__x86)
28
29 /*
30 * Floating point Control Word and Status Word
31 * Definition should actually be shared with x86
32 * (much of this 'amd64' code can be, in fact.)
33 */
34 union fp_cwsw {
35 uint32_t cwsw;
36 struct {
37 uint16_t cw;
38 uint16_t sw;
39 } words;
40 };
41
42 extern __GNU_INLINE void
43 __fenv_getcwsw(unsigned int *value)
44 {
45 union fp_cwsw *u = (union fp_cwsw *)value;
46
47 __asm__ __volatile__(
48 "fstsw %0\n\t"
49 "fstcw %1\n\t"
50 : "=m" (u->words.cw), "=m" (u->words.sw));
51 }
52
53 extern __GNU_INLINE void
54 __fenv_setcwsw(const unsigned int *value)
55 {
56 union fp_cwsw cwsw;
57 short fenv[16];
58
59 cwsw.cwsw = *value;
60
61 __asm__ __volatile__(
62 "fstenv %0\n\t"
63 "movw %4,%1\n\t"
64 "movw %3,%2\n\t"
65 "fldenv %0\n\t"
66 "fwait\n\t"
67 : "=m" (fenv), "=m" (fenv[0]), "=m" (fenv[2])
68 : "r" (cwsw.words.cw), "r" (cwsw.words.sw)
69 /* For practical purposes, we clobber the whole FPU */
70 : "cc", "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)",
71 "st(6)", "st(7)");
72 }
73
74 extern __GNU_INLINE void
75 __fenv_getmxcsr(unsigned int *value)
76 {
77 __asm__ __volatile__("stmxcsr %0" : "=m" (*value));
78 }
79
80 extern __GNU_INLINE void
81 __fenv_setmxcsr(const unsigned int *value)
82 {
83 __asm__ __volatile__("ldmxcsr %0" : : "m" (*value));
84 }
85
86 extern __GNU_INLINE long double
87 f2xm1(long double x)
88 {
89 long double ret;
90
91 __asm__ __volatile__("f2xm1" : "=t" (ret) : "0" (x) : "cc");
92 return (ret);
93 }
94
95 extern __GNU_INLINE long double
96 fyl2x(long double y, long double x)
97 {
98 long double ret;
99
100 __asm__ __volatile__("fyl2x"
101 : "=t" (ret)
102 : "0" (x), "u" (y)
103 : "st(1)", "cc");
104 return (ret);
105 }
106
107 extern __GNU_INLINE long double
108 fptan(long double x)
109 {
110 /*
111 * fptan pushes 1.0 then the result on completion, so we want to pop
112 * the FP stack twice, so we need a dummy value into which to pop it.
113 */
114 long double ret;
115 long double dummy;
116
117 __asm__ __volatile__("fptan"
118 : "=t" (dummy), "=u" (ret)
119 : "0" (x)
120 : "cc");
121 return (ret);
122 }
123
124 extern __GNU_INLINE long double
125 fpatan(long double x, long double y)
126 {
127 long double ret;
128
129 __asm__ __volatile__("fpatan"
130 : "=t" (ret)
131 : "0" (y), "u" (x)
132 : "st(1)", "cc");
133 return (ret);
134 }
135
136 extern __GNU_INLINE long double
137 fxtract(long double x)
138 {
139 __asm__ __volatile__("fxtract" : "+t" (x) : : "cc");
140 return (x);
141 }
142
143 extern __GNU_INLINE long double
144 fprem1(long double idend, long double div)
145 {
146 __asm__ __volatile__("fprem1" : "+t" (div) : "u" (idend) : "cc");
147 return (div);
148 }
149
150 extern __GNU_INLINE long double
151 fprem(long double idend, long double div)
152 {
153 __asm__ __volatile__("fprem" : "+t" (div) : "u" (idend) : "cc");
154 return (div);
155 }
156
157 extern __GNU_INLINE long double
158 fyl2xp1(long double y, long double x)
159 {
160 long double ret;
161
162 __asm__ __volatile__("fyl2xp1"
163 : "=t" (ret)
164 : "0" (x), "u" (y)
165 : "st(1)", "cc");
166 return (ret);
167 }
168
169 extern __GNU_INLINE long double
170 fsqrt(long double x)
171 {
172 __asm__ __volatile__("fsqrt" : "+t" (x) : : "cc");
173 return (x);
174 }
175
176 extern __GNU_INLINE long double
177 fsincos(long double x)
178 {
179 long double dummy;
180
181 __asm__ __volatile__("fsincos" : "+t" (x), "=u" (dummy) : : "cc");
182 return (x);
183 }
184
185 extern __GNU_INLINE long double
186 frndint(long double x)
187 {
188 __asm__ __volatile__("frndint" : "+t" (x) : : "cc");
189 return (x);
190 }
191
192 extern __GNU_INLINE long double
193 fscale(long double x, long double y)
194 {
195 long double ret;
196
197 __asm__ __volatile__("fscale" : "=t" (ret) : "0" (y), "u" (x) : "cc");
198 return (ret);
199 }
200
201 extern __GNU_INLINE long double
202 fsin(long double x)
203 {
204 __asm__ __volatile__("fsin" : "+t" (x) : : "cc");
205 return (x);
206 }
207
208 extern __GNU_INLINE long double
209 fcos(long double x)
210 {
211 __asm__ __volatile__("fcos" : "+t" (x) : : "cc");
212 return (x);
213 }
214
215 extern __GNU_INLINE void
216 sse_cmpeqss(float *f1, float *f2, int *i1)
217 {
218 __asm__ __volatile__(
219 "cmpeqss %2, %1\n\t"
220 "movss %1, %0"
221 : "=m" (*i1), "+x" (*f1)
222 : "x" (*f2)
223 : "cc");
224 }
225
226 extern __GNU_INLINE void
227 sse_cmpltss(float *f1, float *f2, int *i1)
228 {
229 __asm__ __volatile__(
230 "cmpltss %2, %1\n\t"
231 "movss %1, %0"
232 : "=m" (*i1), "+x" (*f1)
233 : "x" (*f2)
234 : "cc");
235 }
236
237 extern __GNU_INLINE void
238 sse_cmpless(float *f1, float *f2, int *i1)
239 {
240 __asm__ __volatile__(
241 "cmpless %2, %1\n\t"
242 "movss %1, %0"
243 : "=m" (*i1), "+x" (*f1)
244 : "x" (*f2)
245 : "cc");
246 }
247
248 extern __GNU_INLINE void
249 sse_cmpunordss(float *f1, float *f2, int *i1)
250 {
251 __asm__ __volatile__(
252 "cmpunordss %2, %1\n\t"
253 "movss %1, %0"
254 : "=m" (*i1), "+x" (*f1)
255 : "x" (*f2)
256 : "cc");
257 }
258
259 extern __GNU_INLINE void
260 sse_minss(float *f1, float *f2, float *f3)
261 {
262 __asm__ __volatile__(
263 "minss %2, %1\n\t"
264 "movss %1, %0"
265 : "=m" (*f3), "+x" (*f1)
266 : "x" (*f2));
267 }
268
269 extern __GNU_INLINE void
270 sse_maxss(float *f1, float *f2, float *f3)
271 {
272 __asm__ __volatile__(
273 "maxss %2, %1\n\t"
274 "movss %1, %0"
275 : "=m" (*f3), "+x" (*f1)
276 : "x" (*f2));
277 }
278
279 extern __GNU_INLINE void
280 sse_addss(float *f1, float *f2, float *f3)
281 {
282 __asm__ __volatile__(
283 "addss %2, %1\n\t"
284 "movss %1, %0"
285 : "=m" (*f3), "+x" (*f1)
286 : "x" (*f2));
287 }
288
289 extern __GNU_INLINE void
290 sse_subss(float *f1, float *f2, float *f3)
291 {
292 __asm__ __volatile__(
293 "subss %2, %1\n\t"
294 "movss %1, %0"
295 : "=m" (*f3), "+x" (*f1)
296 : "x" (*f2));
297 }
298
299 extern __GNU_INLINE void
300 sse_mulss(float *f1, float *f2, float *f3)
301 {
302 __asm__ __volatile__(
303 "mulss %2, %1\n\t"
304 "movss %1, %0"
305 : "=m" (*f3), "+x" (*f1)
306 : "x" (*f2));
307 }
308
309 extern __GNU_INLINE void
310 sse_divss(float *f1, float *f2, float *f3)
311 {
312 __asm__ __volatile__(
313 "divss %2, %1\n\t"
314 "movss %1, %0"
315 : "=m" (*f3), "+x" (*f1)
316 : "x" (*f2));
317 }
318
319 extern __GNU_INLINE void
320 sse_sqrtss(float *f1, float *f2)
321 {
322 double tmp;
323
324 __asm__ __volatile__(
325 "sqrtss %2, %1\n\t"
326 "movss %1, %0"
327 : "=m" (*f2), "=x" (tmp)
328 : "m" (*f1));
329 }
330
331 extern __GNU_INLINE void
332 sse_ucomiss(float *f1, float *f2)
333 {
334 __asm__ __volatile__("ucomiss %1, %0" : : "x" (*f1), "x" (*f2));
335
336 }
337
338 extern __GNU_INLINE void
339 sse_comiss(float *f1, float *f2)
340 {
341 __asm__ __volatile__("comiss %1, %0" : : "x" (*f1), "x" (*f2));
342 }
343
344 extern __GNU_INLINE void
345 sse_cvtss2sd(float *f1, double *d1)
346 {
347 double tmp;
348
349 __asm__ __volatile__(
350 "cvtss2sd %2, %1\n\t"
351 "movsd %1, %0"
352 : "=m" (*d1), "=x" (tmp)
353 : "m" (*f1));
354 }
355
356 extern __GNU_INLINE void
357 sse_cvtsi2ss(int *i1, float *f1)
358 {
359 double tmp;
360
361 __asm__ __volatile__(
362 "cvtsi2ss %2, %1\n\t"
363 "movss %1, %0"
364 : "=m" (*f1), "=x" (tmp)
365 : "m" (*i1));
366 }
367
368 extern __GNU_INLINE void
369 sse_cvttss2si(float *f1, int *i1)
370 {
371 int tmp;
372
373 __asm__ __volatile__(
374 "cvttss2si %2, %1\n\t"
375 "movl %1, %0"
376 : "=m" (*i1), "=r" (tmp)
377 : "m" (*f1));
378 }
379
380 extern __GNU_INLINE void
381 sse_cvtss2si(float *f1, int *i1)
382 {
383 int tmp;
384
385 __asm__ __volatile__(
386 "cvtss2si %2, %1\n\t"
387 "movl %1, %0"
388 : "=m" (*i1), "=r" (tmp)
389 : "m" (*f1));
390 }
391
392 #if defined(__amd64)
393 extern __GNU_INLINE void
394 sse_cvtsi2ssq(long long *ll1, float *f1)
395 {
396 double tmp;
397
398 __asm__ __volatile__(
399 "cvtsi2ssq %2, %1\n\t"
400 "movss %1, %0"
401 : "=m" (*f1), "=x" (tmp)
402 : "m" (*ll1));
403 }
404
405 extern __GNU_INLINE void
406 sse_cvttss2siq(float *f1, long long *ll1)
407 {
408 uint64_t tmp;
409
410 __asm__ __volatile__(
411 "cvttss2siq %2, %1\n\t"
412 "movq %1, %0"
413 : "=m" (*ll1), "=r" (tmp)
414 : "m" (*f1));
415 }
416
417 extern __GNU_INLINE void
418 sse_cvtss2siq(float *f1, long long *ll1)
419 {
420 uint64_t tmp;
421
422 __asm__ __volatile__(
423 "cvtss2siq %2, %1\n\t"
424 "movq %1, %0"
425 : "=m" (*ll1), "=r" (tmp)
426 : "m" (*f1));
427 }
428
429 #endif
430
431 extern __GNU_INLINE void
432 sse_cmpeqsd(double *d1, double *d2, long long *ll1)
433 {
434 __asm__ __volatile__(
435 "cmpeqsd %2,%1\n\t"
436 "movsd %1,%0"
437 : "=m" (*ll1), "+x" (*d1)
438 : "x" (*d2));
439 }
440
441 extern __GNU_INLINE void
442 sse_cmpltsd(double *d1, double *d2, long long *ll1)
443 {
444 __asm__ __volatile__(
445 "cmpltsd %2,%1\n\t"
446 "movsd %1,%0"
447 : "=m" (*ll1), "+x" (*d1)
448 : "x" (*d2));
449 }
450
451 extern __GNU_INLINE void
452 sse_cmplesd(double *d1, double *d2, long long *ll1)
453 {
454 __asm__ __volatile__(
455 "cmplesd %2,%1\n\t"
456 "movsd %1,%0"
457 : "=m" (*ll1), "+x" (*d1)
458 : "x" (*d2));
459 }
460
461 extern __GNU_INLINE void
462 sse_cmpunordsd(double *d1, double *d2, long long *ll1)
463 {
464 __asm__ __volatile__(
465 "cmpunordsd %2,%1\n\t"
466 "movsd %1,%0"
467 : "=m" (*ll1), "+x" (*d1)
468 : "x" (*d2));
469 }
470
471
472 extern __GNU_INLINE void
473 sse_minsd(double *d1, double *d2, double *d3)
474 {
475 __asm__ __volatile__(
476 "minsd %2,%1\n\t"
477 "movsd %1,%0"
478 : "=m" (*d3), "+x" (*d1)
479 : "x" (*d2));
480 }
481
482 extern __GNU_INLINE void
483 sse_maxsd(double *d1, double *d2, double *d3)
484 {
485 __asm__ __volatile__(
486 "maxsd %2,%1\n\t"
487 "movsd %1,%0"
488 : "=m" (*d3), "+x" (*d1)
489 : "x" (*d2));
490 }
491
492 extern __GNU_INLINE void
493 sse_addsd(double *d1, double *d2, double *d3)
494 {
495 __asm__ __volatile__(
496 "addsd %2,%1\n\t"
497 "movsd %1,%0"
498 : "=m" (*d3), "+x" (*d1)
499 : "x" (*d2));
500 }
501
502 extern __GNU_INLINE void
503 sse_subsd(double *d1, double *d2, double *d3)
504 {
505 __asm__ __volatile__(
506 "subsd %2,%1\n\t"
507 "movsd %1,%0"
508 : "=m" (*d3), "+x" (*d1)
509 : "x" (*d2));
510 }
511
512 extern __GNU_INLINE void
513 sse_mulsd(double *d1, double *d2, double *d3)
514 {
515 __asm__ __volatile__(
516 "mulsd %2,%1\n\t"
517 "movsd %1,%0"
518 : "=m" (*d3), "+x" (*d1)
519 : "x" (*d2));
520 }
521
522 extern __GNU_INLINE void
523 sse_divsd(double *d1, double *d2, double *d3)
524 {
525 __asm__ __volatile__(
526 "divsd %2,%1\n\t"
527 "movsd %1,%0"
528 : "=m" (*d3), "+x" (*d1)
529 : "x" (*d2));
530 }
531
532 extern __GNU_INLINE void
533 sse_sqrtsd(double *d1, double *d2)
534 {
535 double tmp;
536
537 __asm__ __volatile__(
538 "sqrtsd %2, %1\n\t"
539 "movsd %1, %0"
540 : "=m" (*d2), "=x" (tmp)
541 : "m" (*d1));
542 }
543
544 extern __GNU_INLINE void
545 sse_ucomisd(double *d1, double *d2)
546 {
547 __asm__ __volatile__("ucomisd %1, %0" : : "x" (*d1), "x" (*d2));
548 }
549
550 extern __GNU_INLINE void
551 sse_comisd(double *d1, double *d2)
552 {
553 __asm__ __volatile__("comisd %1, %0" : : "x" (*d1), "x" (*d2));
554 }
555
556 extern __GNU_INLINE void
557 sse_cvtsd2ss(double *d1, float *f1)
558 {
559 double tmp;
560
561 __asm__ __volatile__(
562 "cvtsd2ss %2,%1\n\t"
563 "movss %1,%0"
564 : "=m" (*f1), "=x" (tmp)
565 : "m" (*d1));
566 }
567
568 extern __GNU_INLINE void
569 sse_cvtsi2sd(int *i1, double *d1)
570 {
571 double tmp;
572 __asm__ __volatile__(
573 "cvtsi2sd %2,%1\n\t"
574 "movsd %1,%0"
575 : "=m" (*d1), "=x" (tmp)
576 : "m" (*i1));
577 }
578
579 extern __GNU_INLINE void
580 sse_cvttsd2si(double *d1, int *i1)
581 {
582 int tmp;
583
584 __asm__ __volatile__(
585 "cvttsd2si %2,%1\n\t"
586 "movl %1,%0"
587 : "=m" (*i1), "=r" (tmp)
588 : "m" (*d1));
589 }
590
591 extern __GNU_INLINE void
592 sse_cvtsd2si(double *d1, int *i1)
593 {
594 int tmp;
595
596 __asm__ __volatile__(
597 "cvtsd2si %2,%1\n\t"
598 "movl %1,%0"
599 : "=m" (*i1), "=r" (tmp)
600 : "m" (*d1));
601 }
602
603 #if defined(__amd64)
604 extern __GNU_INLINE void
605 sse_cvtsi2sdq(long long *ll1, double *d1)
606 {
607 double tmp;
608
609 __asm__ __volatile__(
610 "cvtsi2sdq %2,%1\n\t"
611 "movsd %1,%0"
612 : "=m" (*d1), "=x" (tmp)
613 : "m" (*ll1));
614 }
615
616 extern __GNU_INLINE void
617 sse_cvttsd2siq(double *d1, long long *ll1)
618 {
619 uint64_t tmp;
620
621 __asm__ __volatile__(
622 "cvttsd2siq %2,%1\n\t"
623 "movq %1,%0"
624 : "=m" (*ll1), "=r" (tmp)
625 : "m" (*d1));
626 }
627
628 extern __GNU_INLINE void
629 sse_cvtsd2siq(double *d1, long long *ll1)
630 {
631 uint64_t tmp;
632
633 __asm__ __volatile__(
634 "cvtsd2siq %2,%1\n\t"
635 "movq %1,%0"
636 : "=m" (*ll1), "=r" (tmp)
637 : "m" (*d1));
638 }
639 #endif
640
641 #elif defined(__sparc)
642 extern __GNU_INLINE void
643 __fenv_getfsr(unsigned long *l)
644 {
645 __asm__ __volatile__(
646 #if defined(__sparcv9)
647 "stx %%fsr,%0\n\t"
648 #else
649 "st %%fsr,%0\n\t"
650 #endif
651 : "=m" (*l));
652 }
653
654 extern __GNU_INLINE void
655 __fenv_setfsr(const unsigned long *l)
656 {
657 __asm__ __volatile__(
658 #if defined(__sparcv9)
659 "ldx %0,%%fsr\n\t"
660 #else
661 "ld %0,%%fsr\n\t"
662 #endif
663 : : "m" (*l) : "cc");
664 }
665
666 extern __GNU_INLINE void
667 __fenv_getfsr32(unsigned int *l)
668 {
669 __asm__ __volatile__("st %%fsr,%0\n\t" : "=m" (*l));
670 }
671
672 extern __GNU_INLINE void
673 __fenv_setfsr32(const unsigned int *l)
674 {
675 __asm__ __volatile__("ld %0,%%fsr\n\t" : : "m" (*l));
676 }
677 #else
678 #error "GCC FENV inlines not implemented for this platform"
679 #endif
680
681 #ifdef __cplusplus
682 }
683 #endif
684
685 #endif /* __GNUC__ */
686
687 #endif /* _FENV_INLINES_H */