1 /* Native implementation of soft float functions */
4 #if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
6 #define fabsf(f) ((float)fabs(f))
12 * Define some C99-7.12.3 classification macros and
13 * some C99-.12.4 for Solaris systems OS less than 10,
14 * or Solaris 10 systems running GCC 3.x or less.
15 * Solaris 10 with GCC4 does not need these macros as they
16 * are defined in <iso/math_c99.h> with a compiler directive
18 #if defined(HOST_SOLARIS) && (( HOST_SOLARIS <= 9 ) || ((HOST_SOLARIS >= 10) \
19 && (__GNUC__ <= 4))) \
20 || defined(__OpenBSD__)
22 * C99 7.12.3 classification macros
24 * C99 7.12.14 comparison macros
26 * ... do not work on Solaris 10 using GNU CC 3.4.x.
27 * Try to workaround the missing / broken C99 math macros.
29 #if defined(__OpenBSD__)
30 #define unordered(x, y) (isnan(x) || isnan(y))
33 #define isnormal(x) (fpclass(x) >= FP_NZERO)
34 #define isgreater(x, y) ((!unordered(x, y)) && ((x) > (y)))
35 #define isgreaterequal(x, y) ((!unordered(x, y)) && ((x) >= (y)))
36 #define isless(x, y) ((!unordered(x, y)) && ((x) < (y)))
37 #define islessequal(x, y) ((!unordered(x, y)) && ((x) <= (y)))
38 #define isunordered(x,y) unordered(x, y)
41 #if defined(__sun__) && !defined(NEED_LIBSUNMATH)
45 (sizeof (x) == sizeof (long double) ? isnan_ld (x) \
46 : sizeof (x) == sizeof (double) ? isnan_d (x) \
48 static inline int isnan_f (float x) { return x != x; }
49 static inline int isnan_d (double x) { return x != x; }
50 static inline int isnan_ld (long double x) { return x != x; }
55 (sizeof (x) == sizeof (long double) ? isinf_ld (x) \
56 : sizeof (x) == sizeof (double) ? isinf_d (x) \
58 static inline int isinf_f (float x) { return isnan (x - x); }
59 static inline int isinf_d (double x) { return isnan (x - x); }
60 static inline int isinf_ld (long double x) { return isnan (x - x); }
64 typedef float float32;
65 typedef double float64;
67 typedef long double floatx80;
88 /*----------------------------------------------------------------------------
89 | Software IEC/IEEE floating-point rounding mode.
90 *----------------------------------------------------------------------------*/
91 #if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
92 #if defined(__OpenBSD__)
98 float_round_nearest_even = FP_RN,
99 float_round_down = FP_RM,
100 float_round_up = FP_RP,
101 float_round_to_zero = FP_RZ
103 #elif defined(__arm__)
105 float_round_nearest_even = 0,
106 float_round_down = 1,
108 float_round_to_zero = 3
112 float_round_nearest_even = FE_TONEAREST,
113 float_round_down = FE_DOWNWARD,
114 float_round_up = FE_UPWARD,
115 float_round_to_zero = FE_TOWARDZERO
119 typedef struct float_status {
120 signed char float_rounding_mode;
122 signed char floatx80_rounding_precision;
126 void set_float_rounding_mode(int val STATUS_PARAM);
128 void set_floatx80_rounding_precision(int val STATUS_PARAM);
131 /*----------------------------------------------------------------------------
132 | Software IEC/IEEE integer-to-floating-point conversion routines.
133 *----------------------------------------------------------------------------*/
134 float32 int32_to_float32( int STATUS_PARAM);
135 float32 uint32_to_float32( unsigned int STATUS_PARAM);
136 float64 int32_to_float64( int STATUS_PARAM);
137 float64 uint32_to_float64( unsigned int STATUS_PARAM);
139 floatx80 int32_to_floatx80( int STATUS_PARAM);
142 float128 int32_to_float128( int STATUS_PARAM);
144 float32 int64_to_float32( int64_t STATUS_PARAM);
145 float32 uint64_to_float32( uint64_t STATUS_PARAM);
146 float64 int64_to_float64( int64_t STATUS_PARAM);
147 float64 uint64_to_float64( uint64_t v STATUS_PARAM);
149 floatx80 int64_to_floatx80( int64_t STATUS_PARAM);
152 float128 int64_to_float128( int64_t STATUS_PARAM);
155 /*----------------------------------------------------------------------------
156 | Software IEC/IEEE single-precision conversion routines.
157 *----------------------------------------------------------------------------*/
158 int float32_to_int32( float32 STATUS_PARAM);
159 int float32_to_int32_round_to_zero( float32 STATUS_PARAM);
160 unsigned int float32_to_uint32( float32 a STATUS_PARAM);
161 unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM);
162 int64_t float32_to_int64( float32 STATUS_PARAM);
163 int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM);
164 float64 float32_to_float64( float32 STATUS_PARAM);
166 floatx80 float32_to_floatx80( float32 STATUS_PARAM);
169 float128 float32_to_float128( float32 STATUS_PARAM);
172 /*----------------------------------------------------------------------------
173 | Software IEC/IEEE single-precision operations.
174 *----------------------------------------------------------------------------*/
175 float32 float32_round_to_int( float32 STATUS_PARAM);
176 INLINE float32 float32_add( float32 a, float32 b STATUS_PARAM)
180 INLINE float32 float32_sub( float32 a, float32 b STATUS_PARAM)
184 INLINE float32 float32_mul( float32 a, float32 b STATUS_PARAM)
188 INLINE float32 float32_div( float32 a, float32 b STATUS_PARAM)
192 float32 float32_rem( float32, float32 STATUS_PARAM);
193 float32 float32_sqrt( float32 STATUS_PARAM);
194 INLINE int float32_eq( float32 a, float32 b STATUS_PARAM)
198 INLINE int float32_le( float32 a, float32 b STATUS_PARAM)
202 INLINE int float32_lt( float32 a, float32 b STATUS_PARAM)
206 INLINE int float32_eq_signaling( float32 a, float32 b STATUS_PARAM)
208 return a <= b && a >= b;
210 INLINE int float32_le_quiet( float32 a, float32 b STATUS_PARAM)
212 return islessequal(a, b);
214 INLINE int float32_lt_quiet( float32 a, float32 b STATUS_PARAM)
218 INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM)
220 return isunordered(a, b);
223 int float32_compare( float32, float32 STATUS_PARAM );
224 int float32_compare_quiet( float32, float32 STATUS_PARAM );
225 int float32_is_signaling_nan( float32 );
227 INLINE float32 float32_abs(float32 a)
232 INLINE float32 float32_chs(float32 a)
237 INLINE float32 float32_scalbn(float32 a, int n)
239 return scalbnf(a, n);
242 /*----------------------------------------------------------------------------
243 | Software IEC/IEEE double-precision conversion routines.
244 *----------------------------------------------------------------------------*/
245 int float64_to_int32( float64 STATUS_PARAM );
246 int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
247 unsigned int float64_to_uint32( float64 STATUS_PARAM );
248 unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
249 int64_t float64_to_int64( float64 STATUS_PARAM );
250 int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );
251 uint64_t float64_to_uint64( float64 STATUS_PARAM );
252 uint64_t float64_to_uint64_round_to_zero( float64 STATUS_PARAM );
253 float32 float64_to_float32( float64 STATUS_PARAM );
255 floatx80 float64_to_floatx80( float64 STATUS_PARAM );
258 float128 float64_to_float128( float64 STATUS_PARAM );
261 /*----------------------------------------------------------------------------
262 | Software IEC/IEEE double-precision operations.
263 *----------------------------------------------------------------------------*/
264 float64 float64_round_to_int( float64 STATUS_PARAM );
265 float64 float64_trunc_to_int( float64 STATUS_PARAM );
266 INLINE float64 float64_add( float64 a, float64 b STATUS_PARAM)
270 INLINE float64 float64_sub( float64 a, float64 b STATUS_PARAM)
274 INLINE float64 float64_mul( float64 a, float64 b STATUS_PARAM)
278 INLINE float64 float64_div( float64 a, float64 b STATUS_PARAM)
282 float64 float64_rem( float64, float64 STATUS_PARAM );
283 float64 float64_sqrt( float64 STATUS_PARAM );
284 INLINE int float64_eq( float64 a, float64 b STATUS_PARAM)
288 INLINE int float64_le( float64 a, float64 b STATUS_PARAM)
292 INLINE int float64_lt( float64 a, float64 b STATUS_PARAM)
296 INLINE int float64_eq_signaling( float64 a, float64 b STATUS_PARAM)
298 return a <= b && a >= b;
300 INLINE int float64_le_quiet( float64 a, float64 b STATUS_PARAM)
302 return islessequal(a, b);
304 INLINE int float64_lt_quiet( float64 a, float64 b STATUS_PARAM)
309 INLINE int float64_unordered( float64 a, float64 b STATUS_PARAM)
311 return isunordered(a, b);
314 int float64_compare( float64, float64 STATUS_PARAM );
315 int float64_compare_quiet( float64, float64 STATUS_PARAM );
316 int float64_is_signaling_nan( float64 );
317 int float64_is_nan( float64 );
319 INLINE float64 float64_abs(float64 a)
324 INLINE float64 float64_chs(float64 a)
329 INLINE float64 float64_scalbn(float64 a, int n)
336 /*----------------------------------------------------------------------------
337 | Software IEC/IEEE extended double-precision conversion routines.
338 *----------------------------------------------------------------------------*/
339 int floatx80_to_int32( floatx80 STATUS_PARAM );
340 int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
341 int64_t floatx80_to_int64( floatx80 STATUS_PARAM);
342 int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM);
343 float32 floatx80_to_float32( floatx80 STATUS_PARAM );
344 float64 floatx80_to_float64( floatx80 STATUS_PARAM );
346 float128 floatx80_to_float128( floatx80 STATUS_PARAM );
349 /*----------------------------------------------------------------------------
350 | Software IEC/IEEE extended double-precision operations.
351 *----------------------------------------------------------------------------*/
352 floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM );
353 INLINE floatx80 floatx80_add( floatx80 a, floatx80 b STATUS_PARAM)
357 INLINE floatx80 floatx80_sub( floatx80 a, floatx80 b STATUS_PARAM)
361 INLINE floatx80 floatx80_mul( floatx80 a, floatx80 b STATUS_PARAM)
365 INLINE floatx80 floatx80_div( floatx80 a, floatx80 b STATUS_PARAM)
369 floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM );
370 floatx80 floatx80_sqrt( floatx80 STATUS_PARAM );
371 INLINE int floatx80_eq( floatx80 a, floatx80 b STATUS_PARAM)
375 INLINE int floatx80_le( floatx80 a, floatx80 b STATUS_PARAM)
379 INLINE int floatx80_lt( floatx80 a, floatx80 b STATUS_PARAM)
383 INLINE int floatx80_eq_signaling( floatx80 a, floatx80 b STATUS_PARAM)
385 return a <= b && a >= b;
387 INLINE int floatx80_le_quiet( floatx80 a, floatx80 b STATUS_PARAM)
389 return islessequal(a, b);
391 INLINE int floatx80_lt_quiet( floatx80 a, floatx80 b STATUS_PARAM)
396 INLINE int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM)
398 return isunordered(a, b);
401 int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
402 int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
403 int floatx80_is_signaling_nan( floatx80 );
405 INLINE floatx80 floatx80_abs(floatx80 a)
410 INLINE floatx80 floatx80_chs(floatx80 a)
415 INLINE floatx80 floatx80_scalbn(floatx80 a, int n)
417 return scalbnl(a, n);