2 * msvcrt.dll math functions
4 * Copyright 2000 Jon Griffiths
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #define __USE_ISOC9X 1
24 #define __USE_ISOC99 1
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt
);
37 #ifndef finite /* Could be a macro */
39 #define finite(x) isfinite(x)
41 #define finite(x) (!isnan(x)) /* At least catch some cases */
50 typedef int (CDECL
*MSVCRT_matherr_func
)(struct MSVCRT__exception
*);
52 static MSVCRT_matherr_func MSVCRT_default_matherr_func
= NULL
;
54 static BOOL sse2_supported
;
55 static BOOL sse2_enabled
;
57 void msvcrt_init_math(void)
59 sse2_supported
= sse2_enabled
= IsProcessorFeaturePresent( PF_XMMI64_INSTRUCTIONS_AVAILABLE
);
62 /*********************************************************************
63 * _set_SSE2_enable (MSVCRT.@)
65 int CDECL
MSVCRT__set_SSE2_enable(int flag
)
67 sse2_enabled
= flag
&& sse2_supported
;
71 #if defined(__x86_64__) || defined(__arm__)
73 /*********************************************************************
74 * _chgsignf (MSVCRT.@)
76 float CDECL
MSVCRT__chgsignf( float num
)
78 /* FIXME: +-infinity,Nan not tested */
82 /*********************************************************************
83 * _copysignf (MSVCRT.@)
85 float CDECL
MSVCRT__copysignf( float num
, float sign
)
87 /* FIXME: Behaviour for Nan/Inf? */
89 return num
< 0.0 ? num
: -num
;
90 return num
< 0.0 ? -num
: num
;
93 /*********************************************************************
96 int CDECL
MSVCRT__finitef( float num
)
98 return finitef(num
) != 0; /* See comment for _isnan() */
101 /*********************************************************************
104 INT CDECL
MSVCRT__isnanf( float num
)
106 /* Some implementations return -1 for true(glibc), msvcrt/crtdll return 1.
107 * Do the same, as the result may be used in calculations
109 return isnanf(num
) != 0;
112 /*********************************************************************
115 float CDECL
MSVCRT__logbf( float num
)
117 if (!finitef(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
121 /*********************************************************************
122 * _nextafterf (MSVCRT.@)
124 float CDECL
MSVCRT__nextafterf( float num
, float next
)
126 if (!finitef(num
) || !finitef(next
)) *MSVCRT__errno() = MSVCRT_EDOM
;
127 return nextafterf( num
, next
);
130 /*********************************************************************
131 * MSVCRT_acosf (MSVCRT.@)
133 float CDECL
MSVCRT_acosf( float x
)
135 if (x
< -1.0 || x
> 1.0 || !finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
136 /* glibc implements acos() as the FPU equivalent of atan2(sqrt(1 - x ^ 2), x).
137 * asin() uses a similar construction. This is bad because as x gets nearer to
138 * 1 the error in the expression "1 - x^2" can get relatively large due to
139 * cancellation. The sqrt() makes things worse. A safer way to calculate
140 * acos() is to use atan2(sqrt((1 - x) * (1 + x)), x). */
141 return atan2f(sqrtf((1 - x
) * (1 + x
)), x
);
144 /*********************************************************************
145 * MSVCRT_asinf (MSVCRT.@)
147 float CDECL
MSVCRT_asinf( float x
)
149 if (x
< -1.0 || x
> 1.0 || !finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
150 return atan2f(x
, sqrtf((1 - x
) * (1 + x
)));
153 /*********************************************************************
154 * MSVCRT_atanf (MSVCRT.@)
156 float CDECL
MSVCRT_atanf( float x
)
158 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
162 /*********************************************************************
163 * MSVCRT_atan2f (MSVCRT.@)
165 float CDECL
MSVCRT_atan2f( float x
, float y
)
167 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
171 /*********************************************************************
172 * MSVCRT_cosf (MSVCRT.@)
174 float CDECL
MSVCRT_cosf( float x
)
176 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
180 /*********************************************************************
181 * MSVCRT_coshf (MSVCRT.@)
183 float CDECL
MSVCRT_coshf( float x
)
185 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
189 /*********************************************************************
190 * MSVCRT_expf (MSVCRT.@)
192 float CDECL
MSVCRT_expf( float x
)
194 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
198 /*********************************************************************
199 * MSVCRT_fmodf (MSVCRT.@)
201 float CDECL
MSVCRT_fmodf( float x
, float y
)
203 if (!finitef(x
) || !finitef(y
)) *MSVCRT__errno() = MSVCRT_EDOM
;
207 /*********************************************************************
208 * MSVCRT_logf (MSVCRT.@)
210 float CDECL
MSVCRT_logf( float x
)
212 if (x
< 0.0 || !finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
213 if (x
== 0.0) *MSVCRT__errno() = MSVCRT_ERANGE
;
217 /*********************************************************************
218 * MSVCRT_log10f (MSVCRT.@)
220 float CDECL
MSVCRT_log10f( float x
)
222 if (x
< 0.0 || !finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
223 if (x
== 0.0) *MSVCRT__errno() = MSVCRT_ERANGE
;
227 /*********************************************************************
228 * MSVCRT_powf (MSVCRT.@)
230 float CDECL
MSVCRT_powf( float x
, float y
)
232 /* FIXME: If x < 0 and y is not integral, set EDOM */
234 if (!finitef(z
)) *MSVCRT__errno() = MSVCRT_EDOM
;
238 /*********************************************************************
239 * MSVCRT_sinf (MSVCRT.@)
241 float CDECL
MSVCRT_sinf( float x
)
243 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
247 /*********************************************************************
248 * MSVCRT_sinhf (MSVCRT.@)
250 float CDECL
MSVCRT_sinhf( float x
)
252 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
256 /*********************************************************************
257 * MSVCRT_sqrtf (MSVCRT.@)
259 float CDECL
MSVCRT_sqrtf( float x
)
261 if (x
< 0.0 || !finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
265 /*********************************************************************
266 * MSVCRT_tanf (MSVCRT.@)
268 float CDECL
MSVCRT_tanf( float x
)
270 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
274 /*********************************************************************
275 * MSVCRT_tanhf (MSVCRT.@)
277 float CDECL
MSVCRT_tanhf( float x
)
279 if (!finitef(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
283 /*********************************************************************
286 float CDECL
MSVCRT_ceilf( float x
)
291 /*********************************************************************
294 float CDECL
MSVCRT_floorf( float x
)
299 /*********************************************************************
302 float CDECL
MSVCRT_frexpf( float x
, int *exp
)
304 return frexpf( x
, exp
);
307 /*********************************************************************
310 float CDECL
MSVCRT__scalbf(float num
, MSVCRT_long power
)
312 if (!finitef(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
313 return ldexpf(num
, power
);
316 /*********************************************************************
319 double CDECL
MSVCRT_modff( float x
, float *iptr
)
321 return modff( x
, iptr
);
326 /*********************************************************************
327 * MSVCRT_acos (MSVCRT.@)
329 double CDECL
MSVCRT_acos( double x
)
331 if (x
< -1.0 || x
> 1.0 || !finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
332 /* glibc implements acos() as the FPU equivalent of atan2(sqrt(1 - x ^ 2), x).
333 * asin() uses a similar construction. This is bad because as x gets nearer to
334 * 1 the error in the expression "1 - x^2" can get relatively large due to
335 * cancellation. The sqrt() makes things worse. A safer way to calculate
336 * acos() is to use atan2(sqrt((1 - x) * (1 + x)), x). */
337 return atan2(sqrt((1 - x
) * (1 + x
)), x
);
340 /*********************************************************************
341 * MSVCRT_asin (MSVCRT.@)
343 double CDECL
MSVCRT_asin( double x
)
345 if (x
< -1.0 || x
> 1.0 || !finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
346 return atan2(x
, sqrt((1 - x
) * (1 + x
)));
349 /*********************************************************************
350 * MSVCRT_atan (MSVCRT.@)
352 double CDECL
MSVCRT_atan( double x
)
354 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
358 /*********************************************************************
359 * MSVCRT_atan2 (MSVCRT.@)
361 double CDECL
MSVCRT_atan2( double x
, double y
)
363 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
367 /*********************************************************************
368 * MSVCRT_cos (MSVCRT.@)
370 double CDECL
MSVCRT_cos( double x
)
372 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
376 /*********************************************************************
377 * MSVCRT_cosh (MSVCRT.@)
379 double CDECL
MSVCRT_cosh( double x
)
381 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
385 /*********************************************************************
386 * MSVCRT_exp (MSVCRT.@)
388 double CDECL
MSVCRT_exp( double x
)
390 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
394 /*********************************************************************
395 * MSVCRT_fmod (MSVCRT.@)
397 double CDECL
MSVCRT_fmod( double x
, double y
)
399 if (!finite(x
) || !finite(y
)) *MSVCRT__errno() = MSVCRT_EDOM
;
403 /*********************************************************************
404 * MSVCRT_log (MSVCRT.@)
406 double CDECL
MSVCRT_log( double x
)
408 if (x
< 0.0 || !finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
409 if (x
== 0.0) *MSVCRT__errno() = MSVCRT_ERANGE
;
413 /*********************************************************************
414 * MSVCRT_log10 (MSVCRT.@)
416 double CDECL
MSVCRT_log10( double x
)
418 if (x
< 0.0 || !finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
419 if (x
== 0.0) *MSVCRT__errno() = MSVCRT_ERANGE
;
423 /*********************************************************************
424 * MSVCRT_pow (MSVCRT.@)
426 double CDECL
MSVCRT_pow( double x
, double y
)
428 /* FIXME: If x < 0 and y is not integral, set EDOM */
430 if (!finite(z
)) *MSVCRT__errno() = MSVCRT_EDOM
;
434 /*********************************************************************
435 * MSVCRT_sin (MSVCRT.@)
437 double CDECL
MSVCRT_sin( double x
)
439 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
443 /*********************************************************************
444 * MSVCRT_sinh (MSVCRT.@)
446 double CDECL
MSVCRT_sinh( double x
)
448 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
452 /*********************************************************************
453 * MSVCRT_sqrt (MSVCRT.@)
455 double CDECL
MSVCRT_sqrt( double x
)
457 if (x
< 0.0 || !finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
461 /*********************************************************************
462 * MSVCRT_tan (MSVCRT.@)
464 double CDECL
MSVCRT_tan( double x
)
466 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
470 /*********************************************************************
471 * MSVCRT_tanh (MSVCRT.@)
473 double CDECL
MSVCRT_tanh( double x
)
475 if (!finite(x
)) *MSVCRT__errno() = MSVCRT_EDOM
;
480 #if defined(__GNUC__) && defined(__i386__)
482 #define FPU_DOUBLE(var) double var; \
483 __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var) : )
484 #define FPU_DOUBLES(var1,var2) double var1,var2; \
485 __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var2) : ); \
486 __asm__ __volatile__( "fstpl %0;fwait" : "=m" (var1) : )
488 /*********************************************************************
491 double CDECL
_CIacos(void)
494 return MSVCRT_acos(x
);
497 /*********************************************************************
500 double CDECL
_CIasin(void)
503 return MSVCRT_asin(x
);
506 /*********************************************************************
509 double CDECL
_CIatan(void)
512 return MSVCRT_atan(x
);
515 /*********************************************************************
516 * _CIatan2 (MSVCRT.@)
518 double CDECL
_CIatan2(void)
521 return MSVCRT_atan2(x
,y
);
524 /*********************************************************************
527 double CDECL
_CIcos(void)
530 return MSVCRT_cos(x
);
533 /*********************************************************************
536 double CDECL
_CIcosh(void)
539 return MSVCRT_cosh(x
);
542 /*********************************************************************
545 double CDECL
_CIexp(void)
548 return MSVCRT_exp(x
);
551 /*********************************************************************
554 double CDECL
_CIfmod(void)
557 return MSVCRT_fmod(x
,y
);
560 /*********************************************************************
563 double CDECL
_CIlog(void)
566 return MSVCRT_log(x
);
569 /*********************************************************************
570 * _CIlog10 (MSVCRT.@)
572 double CDECL
_CIlog10(void)
575 return MSVCRT_log10(x
);
578 /*********************************************************************
581 double CDECL
_CIpow(void)
584 return MSVCRT_pow(x
,y
);
587 /*********************************************************************
590 double CDECL
_CIsin(void)
593 return MSVCRT_sin(x
);
596 /*********************************************************************
599 double CDECL
_CIsinh(void)
602 return MSVCRT_sinh(x
);
605 /*********************************************************************
608 double CDECL
_CIsqrt(void)
611 return MSVCRT_sqrt(x
);
614 /*********************************************************************
617 double CDECL
_CItan(void)
620 return MSVCRT_tan(x
);
623 /*********************************************************************
626 double CDECL
_CItanh(void)
629 return MSVCRT_tanh(x
);
632 /*********************************************************************
635 LONGLONG CDECL
MSVCRT__ftol(void)
641 #endif /* defined(__GNUC__) && defined(__i386__) */
643 /*********************************************************************
644 * _fpclass (MSVCRT.@)
646 int CDECL
MSVCRT__fpclass(double num
)
648 #if defined(HAVE_FPCLASS) || defined(fpclass)
649 switch (fpclass( num
))
652 case FP_SNAN
: return MSVCRT__FPCLASS_SNAN
;
655 case FP_QNAN
: return MSVCRT__FPCLASS_QNAN
;
658 case FP_NINF
: return MSVCRT__FPCLASS_NINF
;
661 case FP_PINF
: return MSVCRT__FPCLASS_PINF
;
664 case FP_NDENORM
: return MSVCRT__FPCLASS_ND
;
667 case FP_PDENORM
: return MSVCRT__FPCLASS_PD
;
670 case FP_NZERO
: return MSVCRT__FPCLASS_NZ
;
673 case FP_PZERO
: return MSVCRT__FPCLASS_PZ
;
676 case FP_NNORM
: return MSVCRT__FPCLASS_NN
;
679 case FP_PNORM
: return MSVCRT__FPCLASS_PN
;
681 default: return MSVCRT__FPCLASS_PN
;
683 #elif defined (fpclassify)
684 switch (fpclassify( num
))
686 case FP_NAN
: return MSVCRT__FPCLASS_QNAN
;
687 case FP_INFINITE
: return signbit(num
) ? MSVCRT__FPCLASS_NINF
: MSVCRT__FPCLASS_PINF
;
688 case FP_SUBNORMAL
: return signbit(num
) ?MSVCRT__FPCLASS_ND
: MSVCRT__FPCLASS_PD
;
689 case FP_ZERO
: return signbit(num
) ? MSVCRT__FPCLASS_NZ
: MSVCRT__FPCLASS_PZ
;
691 return signbit(num
) ? MSVCRT__FPCLASS_NN
: MSVCRT__FPCLASS_PN
;
694 return MSVCRT__FPCLASS_QNAN
;
695 return num
== 0.0 ? MSVCRT__FPCLASS_PZ
: (num
< 0 ? MSVCRT__FPCLASS_NN
: MSVCRT__FPCLASS_PN
);
699 /*********************************************************************
702 unsigned int CDECL
_rotl(unsigned int num
, int shift
)
705 return (num
<< shift
) | (num
>> (32-shift
));
708 /*********************************************************************
711 MSVCRT_ulong CDECL
MSVCRT__lrotl(MSVCRT_ulong num
, int shift
)
714 return (num
<< shift
) | (num
>> (32-shift
));
717 /*********************************************************************
720 MSVCRT_ulong CDECL
MSVCRT__lrotr(MSVCRT_ulong num
, int shift
)
723 return (num
>> shift
) | (num
<< (32-shift
));
726 /*********************************************************************
729 unsigned int CDECL
_rotr(unsigned int num
, int shift
)
732 return (num
>> shift
) | (num
<< (32-shift
));
735 /*********************************************************************
738 unsigned __int64 CDECL
_rotl64(unsigned __int64 num
, int shift
)
741 return (num
<< shift
) | (num
>> (64-shift
));
744 /*********************************************************************
747 unsigned __int64 CDECL
_rotr64(unsigned __int64 num
, int shift
)
750 return (num
>> shift
) | (num
<< (64-shift
));
753 /*********************************************************************
756 int CDECL
MSVCRT_abs( int n
)
758 return n
>= 0 ? n
: -n
;
761 /*********************************************************************
764 MSVCRT_long CDECL
MSVCRT_labs( MSVCRT_long n
)
766 return n
>= 0 ? n
: -n
;
769 /*********************************************************************
772 __int64 CDECL
_abs64( __int64 n
)
774 return n
>= 0 ? n
: -n
;
777 /*********************************************************************
780 double CDECL
MSVCRT__logb(double num
)
782 if (!finite(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
786 /*********************************************************************
789 double CDECL
MSVCRT__scalb(double num
, MSVCRT_long power
)
791 if (!finite(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
792 return ldexp(num
, power
);
795 /*********************************************************************
798 double CDECL
_hypot(double x
, double y
)
800 /* FIXME: errno handling */
801 return hypot( x
, y
);
804 /*********************************************************************
807 float CDECL
MSVCRT__hypotf(float x
, float y
)
809 /* FIXME: errno handling */
810 return hypotf( x
, y
);
813 /*********************************************************************
816 double CDECL
MSVCRT_ceil( double x
)
821 /*********************************************************************
824 double CDECL
MSVCRT_floor( double x
)
829 /*********************************************************************
832 double CDECL
MSVCRT_fabs( double x
)
837 /*********************************************************************
840 double CDECL
MSVCRT_frexp( double x
, int *exp
)
842 return frexp( x
, exp
);
845 /*********************************************************************
848 double CDECL
MSVCRT_modf( double x
, double *iptr
)
850 return modf( x
, iptr
);
853 /*********************************************************************
854 * _matherr (MSVCRT.@)
856 int CDECL
MSVCRT__matherr(struct MSVCRT__exception
*e
)
859 TRACE("(%p = %d, %s, %g %g %g)\n",e
, e
->type
, e
->name
, e
->arg1
, e
->arg2
,
863 if (MSVCRT_default_matherr_func
)
864 return MSVCRT_default_matherr_func(e
);
865 ERR(":Unhandled math error!\n");
869 /*********************************************************************
870 * __setusermatherr (MSVCRT.@)
872 void CDECL
MSVCRT___setusermatherr(MSVCRT_matherr_func func
)
874 MSVCRT_default_matherr_func
= func
;
875 TRACE(":new matherr handler %p\n", func
);
878 /**********************************************************************
879 * _statusfp2 (MSVCRT.@)
881 * Not exported by native msvcrt, added in msvcr80.
883 #if defined(__i386__) || defined(__x86_64__)
884 void CDECL
_statusfp2( unsigned int *x86_sw
, unsigned int *sse2_sw
)
888 unsigned long fpword
;
892 __asm__
__volatile__( "fstsw %0" : "=m" (fpword
) );
894 if (fpword
& 0x1) flags
|= MSVCRT__SW_INVALID
;
895 if (fpword
& 0x2) flags
|= MSVCRT__SW_DENORMAL
;
896 if (fpword
& 0x4) flags
|= MSVCRT__SW_ZERODIVIDE
;
897 if (fpword
& 0x8) flags
|= MSVCRT__SW_OVERFLOW
;
898 if (fpword
& 0x10) flags
|= MSVCRT__SW_UNDERFLOW
;
899 if (fpword
& 0x20) flags
|= MSVCRT__SW_INEXACT
;
903 if (!sse2_sw
) return;
907 __asm__
__volatile__( "stmxcsr %0" : "=m" (fpword
) );
909 if (fpword
& 0x1) flags
|= MSVCRT__SW_INVALID
;
910 if (fpword
& 0x2) flags
|= MSVCRT__SW_DENORMAL
;
911 if (fpword
& 0x4) flags
|= MSVCRT__SW_ZERODIVIDE
;
912 if (fpword
& 0x8) flags
|= MSVCRT__SW_OVERFLOW
;
913 if (fpword
& 0x10) flags
|= MSVCRT__SW_UNDERFLOW
;
914 if (fpword
& 0x20) flags
|= MSVCRT__SW_INEXACT
;
919 FIXME( "not implemented\n" );
924 /**********************************************************************
925 * _statusfp (MSVCRT.@)
927 unsigned int CDECL
_statusfp(void)
929 #if defined(__i386__) || defined(__x86_64__)
930 unsigned int x86_sw
, sse2_sw
;
932 _statusfp2( &x86_sw
, &sse2_sw
);
933 /* FIXME: there's no definition for ambiguous status, just return all status bits for now */
934 return x86_sw
| sse2_sw
;
936 FIXME( "not implemented\n" );
941 /*********************************************************************
942 * _clearfp (MSVCRT.@)
944 unsigned int CDECL
_clearfp(void)
946 unsigned int flags
= 0;
947 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
948 unsigned long fpword
;
950 __asm__
__volatile__( "fnstsw %0; fnclex" : "=m" (fpword
) );
951 if (fpword
& 0x1) flags
|= MSVCRT__SW_INVALID
;
952 if (fpword
& 0x2) flags
|= MSVCRT__SW_DENORMAL
;
953 if (fpword
& 0x4) flags
|= MSVCRT__SW_ZERODIVIDE
;
954 if (fpword
& 0x8) flags
|= MSVCRT__SW_OVERFLOW
;
955 if (fpword
& 0x10) flags
|= MSVCRT__SW_UNDERFLOW
;
956 if (fpword
& 0x20) flags
|= MSVCRT__SW_INEXACT
;
960 __asm__
__volatile__( "stmxcsr %0" : "=m" (fpword
) );
961 if (fpword
& 0x1) flags
|= MSVCRT__SW_INVALID
;
962 if (fpword
& 0x2) flags
|= MSVCRT__SW_DENORMAL
;
963 if (fpword
& 0x4) flags
|= MSVCRT__SW_ZERODIVIDE
;
964 if (fpword
& 0x8) flags
|= MSVCRT__SW_OVERFLOW
;
965 if (fpword
& 0x10) flags
|= MSVCRT__SW_UNDERFLOW
;
966 if (fpword
& 0x20) flags
|= MSVCRT__SW_INEXACT
;
968 __asm__
__volatile__( "ldmxcsr %0" : : "m" (fpword
) );
971 FIXME( "not implemented\n" );
976 /*********************************************************************
977 * __fpecode (MSVCRT.@)
979 int * CDECL
__fpecode(void)
981 return &msvcrt_get_thread_data()->fpecode
;
984 /*********************************************************************
987 double CDECL
MSVCRT_ldexp(double num
, MSVCRT_long exp
)
989 double z
= ldexp(num
,exp
);
992 *MSVCRT__errno() = MSVCRT_ERANGE
;
993 else if (z
== 0 && signbit(z
))
994 z
= 0.0; /* Convert -0 -> +0 */
998 /*********************************************************************
1001 double CDECL
MSVCRT__cabs(struct MSVCRT__complex num
)
1003 return sqrt(num
.x
* num
.x
+ num
.y
* num
.y
);
1006 /*********************************************************************
1007 * _chgsign (MSVCRT.@)
1009 double CDECL
MSVCRT__chgsign(double num
)
1011 /* FIXME: +-infinity,Nan not tested */
1015 /*********************************************************************
1016 * __control87_2 (MSVCRT.@)
1018 * Not exported by native msvcrt, added in msvcr80.
1020 #if defined(__i386__) || defined(__x86_64__)
1021 int CDECL
__control87_2( unsigned int newval
, unsigned int mask
,
1022 unsigned int *x86_cw
, unsigned int *sse2_cw
)
1025 unsigned long fpword
;
1030 __asm__
__volatile__( "fstcw %0" : "=m" (fpword
) );
1032 /* Convert into mask constants */
1034 if (fpword
& 0x1) flags
|= MSVCRT__EM_INVALID
;
1035 if (fpword
& 0x2) flags
|= MSVCRT__EM_DENORMAL
;
1036 if (fpword
& 0x4) flags
|= MSVCRT__EM_ZERODIVIDE
;
1037 if (fpword
& 0x8) flags
|= MSVCRT__EM_OVERFLOW
;
1038 if (fpword
& 0x10) flags
|= MSVCRT__EM_UNDERFLOW
;
1039 if (fpword
& 0x20) flags
|= MSVCRT__EM_INEXACT
;
1040 switch (fpword
& 0xc00)
1042 case 0xc00: flags
|= MSVCRT__RC_UP
|MSVCRT__RC_DOWN
; break;
1043 case 0x800: flags
|= MSVCRT__RC_UP
; break;
1044 case 0x400: flags
|= MSVCRT__RC_DOWN
; break;
1046 switch (fpword
& 0x300)
1048 case 0x0: flags
|= MSVCRT__PC_24
; break;
1049 case 0x200: flags
|= MSVCRT__PC_53
; break;
1050 case 0x300: flags
|= MSVCRT__PC_64
; break;
1052 if (fpword
& 0x1000) flags
|= MSVCRT__IC_AFFINE
;
1054 TRACE( "x86 flags=%08x newval=%08x mask=%08x\n", flags
, newval
, mask
);
1057 flags
= (flags
& ~mask
) | (newval
& mask
);
1059 /* Convert (masked) value back to fp word */
1061 if (flags
& MSVCRT__EM_INVALID
) fpword
|= 0x1;
1062 if (flags
& MSVCRT__EM_DENORMAL
) fpword
|= 0x2;
1063 if (flags
& MSVCRT__EM_ZERODIVIDE
) fpword
|= 0x4;
1064 if (flags
& MSVCRT__EM_OVERFLOW
) fpword
|= 0x8;
1065 if (flags
& MSVCRT__EM_UNDERFLOW
) fpword
|= 0x10;
1066 if (flags
& MSVCRT__EM_INEXACT
) fpword
|= 0x20;
1067 switch (flags
& MSVCRT__MCW_RC
)
1069 case MSVCRT__RC_UP
|MSVCRT__RC_DOWN
: fpword
|= 0xc00; break;
1070 case MSVCRT__RC_UP
: fpword
|= 0x800; break;
1071 case MSVCRT__RC_DOWN
: fpword
|= 0x400; break;
1073 switch (flags
& MSVCRT__MCW_PC
)
1075 case MSVCRT__PC_64
: fpword
|= 0x300; break;
1076 case MSVCRT__PC_53
: fpword
|= 0x200; break;
1077 case MSVCRT__PC_24
: fpword
|= 0x0; break;
1079 if (flags
& MSVCRT__IC_AFFINE
) fpword
|= 0x1000;
1081 __asm__
__volatile__( "fldcw %0" : : "m" (fpword
) );
1086 if (!sse2_cw
) return 1;
1090 __asm__
__volatile__( "stmxcsr %0" : "=m" (fpword
) );
1092 /* Convert into mask constants */
1094 if (fpword
& 0x80) flags
|= MSVCRT__EM_INVALID
;
1095 if (fpword
& 0x100) flags
|= MSVCRT__EM_DENORMAL
;
1096 if (fpword
& 0x200) flags
|= MSVCRT__EM_ZERODIVIDE
;
1097 if (fpword
& 0x400) flags
|= MSVCRT__EM_OVERFLOW
;
1098 if (fpword
& 0x800) flags
|= MSVCRT__EM_UNDERFLOW
;
1099 if (fpword
& 0x1000) flags
|= MSVCRT__EM_INEXACT
;
1100 switch (fpword
& 0x6000)
1102 case 0x6000: flags
|= MSVCRT__RC_UP
|MSVCRT__RC_DOWN
; break;
1103 case 0x4000: flags
|= MSVCRT__RC_UP
; break;
1104 case 0x2000: flags
|= MSVCRT__RC_DOWN
; break;
1106 switch (fpword
& 0x8040)
1108 case 0x0040: flags
|= MSVCRT__DN_FLUSH_OPERANDS_SAVE_RESULTS
; break;
1109 case 0x8000: flags
|= MSVCRT__DN_SAVE_OPERANDS_FLUSH_RESULTS
; break;
1110 case 0x8040: flags
|= MSVCRT__DN_FLUSH
; break;
1113 TRACE( "sse2 flags=%08x newval=%08x mask=%08x\n", flags
, newval
, mask
);
1116 flags
= (flags
& ~mask
) | (newval
& mask
);
1118 /* Convert (masked) value back to fp word */
1120 if (flags
& MSVCRT__EM_INVALID
) fpword
|= 0x80;
1121 if (flags
& MSVCRT__EM_DENORMAL
) fpword
|= 0x100;
1122 if (flags
& MSVCRT__EM_ZERODIVIDE
) fpword
|= 0x200;
1123 if (flags
& MSVCRT__EM_OVERFLOW
) fpword
|= 0x400;
1124 if (flags
& MSVCRT__EM_UNDERFLOW
) fpword
|= 0x800;
1125 if (flags
& MSVCRT__EM_INEXACT
) fpword
|= 0x1000;
1126 switch (flags
& MSVCRT__MCW_RC
)
1128 case MSVCRT__RC_UP
|MSVCRT__RC_DOWN
: fpword
|= 0x6000; break;
1129 case MSVCRT__RC_UP
: fpword
|= 0x4000; break;
1130 case MSVCRT__RC_DOWN
: fpword
|= 0x2000; break;
1132 switch (flags
& MSVCRT__MCW_DN
)
1134 case MSVCRT__DN_FLUSH_OPERANDS_SAVE_RESULTS
: fpword
|= 0x0040; break;
1135 case MSVCRT__DN_SAVE_OPERANDS_FLUSH_RESULTS
: fpword
|= 0x8000; break;
1136 case MSVCRT__DN_FLUSH
: fpword
|= 0x8040; break;
1138 __asm__
__volatile__( "ldmxcsr %0" : : "m" (fpword
) );
1146 FIXME( "not implemented\n" );
1152 /*********************************************************************
1153 * _control87 (MSVCRT.@)
1155 unsigned int CDECL
_control87(unsigned int newval
, unsigned int mask
)
1157 #if defined(__i386__) || defined(__x86_64__)
1158 unsigned int x86_cw
, sse2_cw
;
1160 __control87_2( newval
, mask
, &x86_cw
, &sse2_cw
);
1162 if ((x86_cw
^ sse2_cw
) & (MSVCRT__MCW_EM
| MSVCRT__MCW_RC
)) x86_cw
|= MSVCRT__EM_AMBIGUOUS
;
1165 FIXME( "not implemented\n" );
1170 /*********************************************************************
1171 * _controlfp (MSVCRT.@)
1173 unsigned int CDECL
_controlfp(unsigned int newval
, unsigned int mask
)
1175 return _control87( newval
, mask
& ~MSVCRT__EM_DENORMAL
);
1178 /*********************************************************************
1179 * _set_controlfp (MSVCRT.@)
1181 void CDECL
_set_controlfp( unsigned int newval
, unsigned int mask
)
1183 _controlfp( newval
, mask
);
1186 /*********************************************************************
1187 * _controlfp_s (MSVCRT.@)
1189 int CDECL
_controlfp_s(unsigned int *cur
, unsigned int newval
, unsigned int mask
)
1191 static const unsigned int all_flags
= (MSVCRT__MCW_EM
| MSVCRT__MCW_IC
| MSVCRT__MCW_RC
|
1192 MSVCRT__MCW_PC
| MSVCRT__MCW_DN
);
1195 if (!MSVCRT_CHECK_PMT( !(newval
& mask
& ~all_flags
) ))
1197 if (cur
) *cur
= _controlfp( 0, 0 ); /* retrieve it anyway */
1198 return MSVCRT_EINVAL
;
1200 val
= _controlfp( newval
, mask
);
1201 if (cur
) *cur
= val
;
1205 /*********************************************************************
1206 * _copysign (MSVCRT.@)
1208 double CDECL
MSVCRT__copysign(double num
, double sign
)
1210 /* FIXME: Behaviour for Nan/Inf? */
1212 return num
< 0.0 ? num
: -num
;
1213 return num
< 0.0 ? -num
: num
;
1216 /*********************************************************************
1217 * _finite (MSVCRT.@)
1219 int CDECL
MSVCRT__finite(double num
)
1221 return (finite(num
)?1:0); /* See comment for _isnan() */
1224 /*********************************************************************
1225 * _fpreset (MSVCRT.@)
1227 void CDECL
_fpreset(void)
1229 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
1230 const unsigned int x86_cw
= 0x27f;
1231 __asm__
__volatile__( "fninit; fldcw %0" : : "m" (x86_cw
) );
1234 const unsigned long sse2_cw
= 0x1f80;
1235 __asm__
__volatile__( "ldmxcsr %0" : : "m" (sse2_cw
) );
1238 FIXME( "not implemented\n" );
1242 /*********************************************************************
1245 INT CDECL
MSVCRT__isnan(double num
)
1247 /* Some implementations return -1 for true(glibc), msvcrt/crtdll return 1.
1248 * Do the same, as the result may be used in calculations
1250 return isnan(num
) ? 1 : 0;
1253 /*********************************************************************
1256 double CDECL
MSVCRT__j0(double num
)
1258 /* FIXME: errno handling */
1262 /*********************************************************************
1265 double CDECL
MSVCRT__j1(double num
)
1267 /* FIXME: errno handling */
1271 /*********************************************************************
1274 double CDECL
MSVCRT__jn(int n
, double num
)
1276 /* FIXME: errno handling */
1280 /*********************************************************************
1283 double CDECL
MSVCRT__y0(double num
)
1286 if (!finite(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
1288 if (MSVCRT__fpclass(retval
) == MSVCRT__FPCLASS_NINF
)
1290 *MSVCRT__errno() = MSVCRT_EDOM
;
1296 /*********************************************************************
1299 double CDECL
MSVCRT__y1(double num
)
1302 if (!finite(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
1304 if (MSVCRT__fpclass(retval
) == MSVCRT__FPCLASS_NINF
)
1306 *MSVCRT__errno() = MSVCRT_EDOM
;
1312 /*********************************************************************
1315 double CDECL
MSVCRT__yn(int order
, double num
)
1318 if (!finite(num
)) *MSVCRT__errno() = MSVCRT_EDOM
;
1319 retval
= yn(order
,num
);
1320 if (MSVCRT__fpclass(retval
) == MSVCRT__FPCLASS_NINF
)
1322 *MSVCRT__errno() = MSVCRT_EDOM
;
1328 /*********************************************************************
1329 * _nextafter (MSVCRT.@)
1331 double CDECL
MSVCRT__nextafter(double num
, double next
)
1334 if (!finite(num
) || !finite(next
)) *MSVCRT__errno() = MSVCRT_EDOM
;
1335 retval
= nextafter(num
,next
);
1339 /*********************************************************************
1342 char * CDECL
_ecvt( double number
, int ndigits
, int *decpt
, int *sign
)
1345 thread_data_t
*data
= msvcrt_get_thread_data();
1346 /* FIXME: check better for overflow (native supports over 300 chars) */
1347 ndigits
= min( ndigits
, 80 - 7); /* 7 : space for dec point, 1 for "e",
1348 * 4 for exponent and one for
1349 * terminating '\0' */
1350 if (!data
->efcvt_buffer
)
1351 data
->efcvt_buffer
= MSVCRT_malloc( 80 ); /* ought to be enough */
1358 /* handle cases with zero ndigits or less */
1360 if( prec
< 1) prec
= 2;
1361 len
= snprintf(data
->efcvt_buffer
, 80, "%.*le", prec
- 1, number
);
1362 /* take the decimal "point away */
1364 memmove( data
->efcvt_buffer
+ 1, data
->efcvt_buffer
+ 2, len
- 1 );
1365 /* take the exponential "e" out */
1366 data
->efcvt_buffer
[ prec
] = '\0';
1367 /* read the exponent */
1368 sscanf( data
->efcvt_buffer
+ prec
+ 1, "%d", decpt
);
1370 /* adjust for some border cases */
1371 if( data
->efcvt_buffer
[0] == '0')/* value is zero */
1373 /* handle cases with zero ndigits or less */
1375 if( data
->efcvt_buffer
[ 0] >= '5')
1377 data
->efcvt_buffer
[ 0] = '\0';
1379 TRACE("out=\"%s\"\n",data
->efcvt_buffer
);
1380 return data
->efcvt_buffer
;
1383 /*********************************************************************
1384 * _ecvt_s (MSVCRT.@)
1386 int CDECL
_ecvt_s( char *buffer
, MSVCRT_size_t length
, double number
, int ndigits
, int *decpt
, int *sign
)
1390 const char infret
[] = "1#INF";
1392 if (!MSVCRT_CHECK_PMT(buffer
!= NULL
)) return MSVCRT_EINVAL
;
1393 if (!MSVCRT_CHECK_PMT(decpt
!= NULL
)) return MSVCRT_EINVAL
;
1394 if (!MSVCRT_CHECK_PMT(sign
!= NULL
)) return MSVCRT_EINVAL
;
1395 if (!MSVCRT_CHECK_PMT_ERR( length
> 2, MSVCRT_ERANGE
)) return MSVCRT_ERANGE
;
1396 if (!MSVCRT_CHECK_PMT_ERR(ndigits
< (int)length
- 1, MSVCRT_ERANGE
)) return MSVCRT_ERANGE
;
1398 /* special case - inf */
1399 if(number
== HUGE_VAL
|| number
== -HUGE_VAL
)
1401 memset(buffer
, '0', ndigits
);
1402 memcpy(buffer
, infret
, min(ndigits
, sizeof(infret
) - 1 ) );
1403 buffer
[ndigits
] = '\0';
1405 if(number
== -HUGE_VAL
)
1411 /* handle cases with zero ndigits or less */
1413 if( prec
< 1) prec
= 2;
1414 result
= MSVCRT_malloc(prec
+ 7);
1421 len
= snprintf(result
, prec
+ 7, "%.*le", prec
- 1, number
);
1422 /* take the decimal "point away */
1424 memmove( result
+ 1, result
+ 2, len
- 1 );
1425 /* take the exponential "e" out */
1426 result
[ prec
] = '\0';
1427 /* read the exponent */
1428 sscanf( result
+ prec
+ 1, "%d", decpt
);
1430 /* adjust for some border cases */
1431 if( result
[0] == '0')/* value is zero */
1433 /* handle cases with zero ndigits or less */
1435 if( result
[ 0] >= '5')
1439 memcpy( buffer
, result
, max(ndigits
+ 1, 1) );
1440 MSVCRT_free( result
);
1444 /***********************************************************************
1447 char * CDECL
_fcvt( double number
, int ndigits
, int *decpt
, int *sign
)
1449 thread_data_t
*data
= msvcrt_get_thread_data();
1450 int stop
, dec1
, dec2
;
1451 char *ptr1
, *ptr2
, *first
;
1452 char buf
[80]; /* ought to be enough */
1454 if (!data
->efcvt_buffer
)
1455 data
->efcvt_buffer
= MSVCRT_malloc( 80 ); /* ought to be enough */
1463 snprintf(buf
, 80, "%.*f", ndigits
< 0 ? 0 : ndigits
, number
);
1465 ptr2
= data
->efcvt_buffer
;
1470 /* For numbers below the requested resolution, work out where
1471 the decimal point will be rather than finding it in the string */
1472 if (number
< 1.0 && number
> 0.0) {
1473 dec2
= log10(number
+ 1e-10);
1474 if (-dec2
<= ndigits
) dec2
= 0;
1477 /* If requested digits is zero or less, we will need to truncate
1478 * the returned string */
1480 stop
= strlen(buf
) + ndigits
;
1485 while (*ptr1
== '0') ptr1
++; /* Skip leading zeroes */
1486 while (*ptr1
!= '\0' && *ptr1
!= '.') {
1487 if (!first
) first
= ptr2
;
1488 if ((ptr1
- buf
) < stop
) {
1499 while (*ptr1
== '0') { /* Process leading zeroes */
1504 while (*ptr1
!= '\0') {
1505 if (!first
) first
= ptr2
;
1512 /* We never found a non-zero digit, then our number is either
1513 * smaller than the requested precision, or 0.0 */
1518 first
= data
->efcvt_buffer
;
1523 *decpt
= dec2
? dec2
: dec1
;
1527 /***********************************************************************
1528 * _fcvt_s (MSVCRT.@)
1530 int CDECL
_fcvt_s(char* outbuffer
, MSVCRT_size_t size
, double number
, int ndigits
, int *decpt
, int *sign
)
1532 int stop
, dec1
, dec2
;
1533 char *ptr1
, *ptr2
, *first
;
1534 char buf
[80]; /* ought to be enough */
1536 if (!outbuffer
|| !decpt
|| !sign
|| size
== 0)
1538 *MSVCRT__errno() = MSVCRT_EINVAL
;
1539 return MSVCRT_EINVAL
;
1548 snprintf(buf
, 80, "%.*f", ndigits
< 0 ? 0 : ndigits
, number
);
1555 /* For numbers below the requested resolution, work out where
1556 the decimal point will be rather than finding it in the string */
1557 if (number
< 1.0 && number
> 0.0) {
1558 dec2
= log10(number
+ 1e-10);
1559 if (-dec2
<= ndigits
) dec2
= 0;
1562 /* If requested digits is zero or less, we will need to truncate
1563 * the returned string */
1565 stop
= strlen(buf
) + ndigits
;
1570 while (*ptr1
== '0') ptr1
++; /* Skip leading zeroes */
1571 while (*ptr1
!= '\0' && *ptr1
!= '.') {
1572 if (!first
) first
= ptr2
;
1573 if ((ptr1
- buf
) < stop
) {
1587 while (*ptr1
== '0') { /* Process leading zeroes */
1588 if (number
== 0.0 && size
> 1) {
1596 while (*ptr1
!= '\0') {
1597 if (!first
) first
= ptr2
;
1607 /* We never found a non-zero digit, then our number is either
1608 * smaller than the requested precision, or 0.0 */
1609 if (!first
&& (number
<= 0.0))
1612 *decpt
= dec2
? dec2
: dec1
;
1616 /***********************************************************************
1619 char * CDECL
_gcvt( double number
, int ndigit
, char *buff
)
1622 *MSVCRT__errno() = MSVCRT_EINVAL
;
1627 *MSVCRT__errno() = MSVCRT_ERANGE
;
1631 MSVCRT_sprintf(buff
, "%.*g", ndigit
, number
);
1635 /***********************************************************************
1636 * _gcvt_s (MSVCRT.@)
1638 int CDECL
_gcvt_s(char *buff
, MSVCRT_size_t size
, double number
, int digits
)
1643 *MSVCRT__errno() = MSVCRT_EINVAL
;
1644 return MSVCRT_EINVAL
;
1647 if( digits
<0 || digits
>=size
) {
1651 *MSVCRT__errno() = MSVCRT_ERANGE
;
1652 return MSVCRT_ERANGE
;
1655 len
= MSVCRT__scprintf("%.*g", digits
, number
);
1658 *MSVCRT__errno() = MSVCRT_ERANGE
;
1659 return MSVCRT_ERANGE
;
1662 MSVCRT_sprintf(buff
, "%.*g", digits
, number
);
1666 #include <stdlib.h> /* div_t, ldiv_t */
1668 /*********************************************************************
1671 * [i386] Windows binary compatible - returns the struct in eax/edx.
1674 unsigned __int64 CDECL
MSVCRT_div(int num
, int denom
)
1676 div_t dt
= div(num
,denom
);
1677 return ((unsigned __int64
)dt
.rem
<< 32) | (unsigned int)dt
.quot
;
1680 /*********************************************************************
1683 * [!i386] Non-x86 can't run win32 apps so we don't need binary compatibility
1685 MSVCRT_div_t CDECL
MSVCRT_div(int num
, int denom
)
1687 div_t dt
= div(num
,denom
);
1695 #endif /* ifdef __i386__ */
1698 /*********************************************************************
1701 * [i386] Windows binary compatible - returns the struct in eax/edx.
1704 unsigned __int64 CDECL
MSVCRT_ldiv(MSVCRT_long num
, MSVCRT_long denom
)
1706 ldiv_t ldt
= ldiv(num
,denom
);
1707 return ((unsigned __int64
)ldt
.rem
<< 32) | (MSVCRT_ulong
)ldt
.quot
;
1710 /*********************************************************************
1713 * [!i386] Non-x86 can't run win32 apps so we don't need binary compatibility
1715 MSVCRT_ldiv_t CDECL
MSVCRT_ldiv(MSVCRT_long num
, MSVCRT_long denom
)
1717 ldiv_t result
= ldiv(num
,denom
);
1720 ret
.quot
= result
.quot
;
1721 ret
.rem
= result
.rem
;
1725 #endif /* ifdef __i386__ */
1729 /*********************************************************************
1730 * _adjust_fdiv (MSVCRT.@)
1731 * Used by the MSVC compiler to work around the Pentium FDIV bug.
1733 int MSVCRT__adjust_fdiv
= 0;
1735 /***********************************************************************
1736 * _adj_fdiv_m16i (MSVCRT.@)
1739 * I _think_ this function is intended to work around the Pentium
1742 void __stdcall
_adj_fdiv_m16i( short arg
)
1744 TRACE("(): stub\n");
1747 /***********************************************************************
1748 * _adj_fdiv_m32 (MSVCRT.@)
1751 * I _think_ this function is intended to work around the Pentium
1754 void __stdcall
_adj_fdiv_m32( unsigned int arg
)
1756 TRACE("(): stub\n");
1759 /***********************************************************************
1760 * _adj_fdiv_m32i (MSVCRT.@)
1763 * I _think_ this function is intended to work around the Pentium
1766 void __stdcall
_adj_fdiv_m32i( int arg
)
1768 TRACE("(): stub\n");
1771 /***********************************************************************
1772 * _adj_fdiv_m64 (MSVCRT.@)
1775 * I _think_ this function is intended to work around the Pentium
1778 void __stdcall
_adj_fdiv_m64( unsigned __int64 arg
)
1780 TRACE("(): stub\n");
1783 /***********************************************************************
1784 * _adj_fdiv_r (MSVCRT.@)
1786 * This function is likely to have the wrong number of arguments.
1789 * I _think_ this function is intended to work around the Pentium
1792 void _adj_fdiv_r(void)
1794 TRACE("(): stub\n");
1797 /***********************************************************************
1798 * _adj_fdivr_m16i (MSVCRT.@)
1801 * I _think_ this function is intended to work around the Pentium
1804 void __stdcall
_adj_fdivr_m16i( short arg
)
1806 TRACE("(): stub\n");
1809 /***********************************************************************
1810 * _adj_fdivr_m32 (MSVCRT.@)
1813 * I _think_ this function is intended to work around the Pentium
1816 void __stdcall
_adj_fdivr_m32( unsigned int arg
)
1818 TRACE("(): stub\n");
1821 /***********************************************************************
1822 * _adj_fdivr_m32i (MSVCRT.@)
1825 * I _think_ this function is intended to work around the Pentium
1828 void __stdcall
_adj_fdivr_m32i( int arg
)
1830 TRACE("(): stub\n");
1833 /***********************************************************************
1834 * _adj_fdivr_m64 (MSVCRT.@)
1837 * I _think_ this function is intended to work around the Pentium
1840 void __stdcall
_adj_fdivr_m64( unsigned __int64 arg
)
1842 TRACE("(): stub\n");
1845 /***********************************************************************
1846 * _adj_fpatan (MSVCRT.@)
1848 * This function is likely to have the wrong number of arguments.
1851 * I _think_ this function is intended to work around the Pentium
1854 void _adj_fpatan(void)
1856 TRACE("(): stub\n");
1859 /***********************************************************************
1860 * _adj_fprem (MSVCRT.@)
1862 * This function is likely to have the wrong number of arguments.
1865 * I _think_ this function is intended to work around the Pentium
1868 void _adj_fprem(void)
1870 TRACE("(): stub\n");
1873 /***********************************************************************
1874 * _adj_fprem1 (MSVCRT.@)
1876 * This function is likely to have the wrong number of arguments.
1879 * I _think_ this function is intended to work around the Pentium
1882 void _adj_fprem1(void)
1884 TRACE("(): stub\n");
1887 /***********************************************************************
1888 * _adj_fptan (MSVCRT.@)
1890 * This function is likely to have the wrong number of arguments.
1893 * I _think_ this function is intended to work around the Pentium
1896 void _adj_fptan(void)
1898 TRACE("(): stub\n");
1901 /***********************************************************************
1902 * _safe_fdiv (MSVCRT.@)
1904 * This function is likely to have the wrong number of arguments.
1907 * I _think_ this function is intended to work around the Pentium
1910 void _safe_fdiv(void)
1912 TRACE("(): stub\n");
1915 /***********************************************************************
1916 * _safe_fdivr (MSVCRT.@)
1918 * This function is likely to have the wrong number of arguments.
1921 * I _think_ this function is intended to work around the Pentium
1924 void _safe_fdivr(void)
1926 TRACE("(): stub\n");
1929 /***********************************************************************
1930 * _safe_fprem (MSVCRT.@)
1932 * This function is likely to have the wrong number of arguments.
1935 * I _think_ this function is intended to work around the Pentium
1938 void _safe_fprem(void)
1940 TRACE("(): stub\n");
1943 /***********************************************************************
1944 * _safe_fprem1 (MSVCRT.@)
1947 * This function is likely to have the wrong number of arguments.
1950 * I _think_ this function is intended to work around the Pentium
1953 void _safe_fprem1(void)
1955 TRACE("(): stub\n");
1958 /***********************************************************************
1959 * __libm_sse2_acos (MSVCRT.@)
1961 void __cdecl
__libm_sse2_acos(void)
1964 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
1966 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
1969 /***********************************************************************
1970 * __libm_sse2_acosf (MSVCRT.@)
1972 void __cdecl
__libm_sse2_acosf(void)
1975 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
1977 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
1980 /***********************************************************************
1981 * __libm_sse2_asin (MSVCRT.@)
1983 void __cdecl
__libm_sse2_asin(void)
1986 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
1988 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
1991 /***********************************************************************
1992 * __libm_sse2_asinf (MSVCRT.@)
1994 void __cdecl
__libm_sse2_asinf(void)
1997 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
1999 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2002 /***********************************************************************
2003 * __libm_sse2_atan (MSVCRT.@)
2005 void __cdecl
__libm_sse2_atan(void)
2008 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2010 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2013 /***********************************************************************
2014 * __libm_sse2_atan2 (MSVCRT.@)
2016 void __cdecl
__libm_sse2_atan2(void)
2019 __asm__
__volatile__( "movq %%xmm0,%0; movq %%xmm1,%1 " : "=m" (d1
), "=m" (d2
) );
2020 d1
= atan2( d1
, d2
);
2021 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d1
) );
2024 /***********************************************************************
2025 * __libm_sse2_atanf (MSVCRT.@)
2027 void __cdecl
__libm_sse2_atanf(void)
2030 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2032 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2035 /***********************************************************************
2036 * __libm_sse2_cos (MSVCRT.@)
2038 void __cdecl
__libm_sse2_cos(void)
2041 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2043 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2046 /***********************************************************************
2047 * __libm_sse2_cosf (MSVCRT.@)
2049 void __cdecl
__libm_sse2_cosf(void)
2052 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2054 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2057 /***********************************************************************
2058 * __libm_sse2_exp (MSVCRT.@)
2060 void __cdecl
__libm_sse2_exp(void)
2063 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2065 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2068 /***********************************************************************
2069 * __libm_sse2_expf (MSVCRT.@)
2071 void __cdecl
__libm_sse2_expf(void)
2074 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2076 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2079 /***********************************************************************
2080 * __libm_sse2_log (MSVCRT.@)
2082 void __cdecl
__libm_sse2_log(void)
2085 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2087 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2090 /***********************************************************************
2091 * __libm_sse2_log10 (MSVCRT.@)
2093 void __cdecl
__libm_sse2_log10(void)
2096 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2098 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2101 /***********************************************************************
2102 * __libm_sse2_log10f (MSVCRT.@)
2104 void __cdecl
__libm_sse2_log10f(void)
2107 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2109 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2112 /***********************************************************************
2113 * __libm_sse2_logf (MSVCRT.@)
2115 void __cdecl
__libm_sse2_logf(void)
2118 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2120 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2123 /***********************************************************************
2124 * __libm_sse2_pow (MSVCRT.@)
2126 void __cdecl
__libm_sse2_pow(void)
2129 __asm__
__volatile__( "movq %%xmm0,%0; movq %%xmm1,%1 " : "=m" (d1
), "=m" (d2
) );
2131 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d1
) );
2134 /***********************************************************************
2135 * __libm_sse2_powf (MSVCRT.@)
2137 void __cdecl
__libm_sse2_powf(void)
2140 __asm__
__volatile__( "movd %%xmm0,%0; movd %%xmm1,%1" : "=g" (f1
), "=g" (f2
) );
2141 f1
= powf( f1
, f2
);
2142 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f1
) );
2145 /***********************************************************************
2146 * __libm_sse2_sin (MSVCRT.@)
2148 void __cdecl
__libm_sse2_sin(void)
2151 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2153 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2156 /***********************************************************************
2157 * __libm_sse2_sinf (MSVCRT.@)
2159 void __cdecl
__libm_sse2_sinf(void)
2162 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2164 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2167 /***********************************************************************
2168 * __libm_sse2_tan (MSVCRT.@)
2170 void __cdecl
__libm_sse2_tan(void)
2173 __asm__
__volatile__( "movq %%xmm0,%0" : "=m" (d
) );
2175 __asm__
__volatile__( "movq %0,%%xmm0" : : "m" (d
) );
2178 /***********************************************************************
2179 * __libm_sse2_tanf (MSVCRT.@)
2181 void __cdecl
__libm_sse2_tanf(void)
2184 __asm__
__volatile__( "movd %%xmm0,%0" : "=g" (f
) );
2186 __asm__
__volatile__( "movd %0,%%xmm0" : : "g" (f
) );
2189 #endif /* __i386__ */