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 ) && ( __GNUC__ <= 4) ))
20 * C99 7.12.3 classification macros
22 * C99 7.12.14 comparison macros
24 * ... do not work on Solaris 10 using GNU CC 3.4.x.
25 * Try to workaround the missing / broken C99 math macros.
28 #define isnormal(x) (fpclass(x) >= FP_NZERO)
29 #define isgreater(x, y) ((!unordered(x, y)) && ((x) > (y)))
30 #define isgreaterequal(x, y) ((!unordered(x, y)) && ((x) >= (y)))
31 #define isless(x, y) ((!unordered(x, y)) && ((x) < (y)))
32 #define islessequal(x, y) ((!unordered(x, y)) && ((x) <= (y)))
33 #define isunordered(x,y) unordered(x, y)
36 typedef float float32;
37 typedef double float64;
39 typedef long double floatx80;
60 /*----------------------------------------------------------------------------
61 | Software IEC/IEEE floating-point rounding mode.
62 *----------------------------------------------------------------------------*/
63 #if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
65 float_round_nearest_even = FP_RN,
66 float_round_down = FP_RM,
67 float_round_up = FP_RP,
68 float_round_to_zero = FP_RZ
70 #elif defined(__arm__)
72 float_round_nearest_even = 0,
75 float_round_to_zero = 3
79 float_round_nearest_even = FE_TONEAREST,
80 float_round_down = FE_DOWNWARD,
81 float_round_up = FE_UPWARD,
82 float_round_to_zero = FE_TOWARDZERO
86 typedef struct float_status {
87 signed char float_rounding_mode;
89 signed char floatx80_rounding_precision;
93 void set_float_rounding_mode(int val STATUS_PARAM);
95 void set_floatx80_rounding_precision(int val STATUS_PARAM);
98 /*----------------------------------------------------------------------------
99 | Software IEC/IEEE integer-to-floating-point conversion routines.
100 *----------------------------------------------------------------------------*/
101 float32 int32_to_float32( int STATUS_PARAM);
102 float32 uint32_to_float32( unsigned int STATUS_PARAM);
103 float64 int32_to_float64( int STATUS_PARAM);
104 float64 uint32_to_float64( unsigned int STATUS_PARAM);
106 floatx80 int32_to_floatx80( int STATUS_PARAM);
109 float128 int32_to_float128( int STATUS_PARAM);
111 float32 int64_to_float32( int64_t STATUS_PARAM);
112 float32 uint64_to_float32( uint64_t STATUS_PARAM);
113 float64 int64_to_float64( int64_t STATUS_PARAM);
114 float64 uint64_to_float64( uint64_t v STATUS_PARAM);
116 floatx80 int64_to_floatx80( int64_t STATUS_PARAM);
119 float128 int64_to_float128( int64_t STATUS_PARAM);
122 /*----------------------------------------------------------------------------
123 | Software IEC/IEEE single-precision conversion routines.
124 *----------------------------------------------------------------------------*/
125 int float32_to_int32( float32 STATUS_PARAM);
126 int float32_to_int32_round_to_zero( float32 STATUS_PARAM);
127 unsigned int float32_to_uint32( float32 a STATUS_PARAM);
128 unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM);
129 int64_t float32_to_int64( float32 STATUS_PARAM);
130 int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM);
131 float64 float32_to_float64( float32 STATUS_PARAM);
133 floatx80 float32_to_floatx80( float32 STATUS_PARAM);
136 float128 float32_to_float128( float32 STATUS_PARAM);
139 /*----------------------------------------------------------------------------
140 | Software IEC/IEEE single-precision operations.
141 *----------------------------------------------------------------------------*/
142 float32 float32_round_to_int( float32 STATUS_PARAM);
143 INLINE float32 float32_add( float32 a, float32 b STATUS_PARAM)
147 INLINE float32 float32_sub( float32 a, float32 b STATUS_PARAM)
151 INLINE float32 float32_mul( float32 a, float32 b STATUS_PARAM)
155 INLINE float32 float32_div( float32 a, float32 b STATUS_PARAM)
159 float32 float32_rem( float32, float32 STATUS_PARAM);
160 float32 float32_sqrt( float32 STATUS_PARAM);
161 INLINE int float32_eq( float32 a, float32 b STATUS_PARAM)
165 INLINE int float32_le( float32 a, float32 b STATUS_PARAM)
169 INLINE int float32_lt( float32 a, float32 b STATUS_PARAM)
173 INLINE int float32_eq_signaling( float32 a, float32 b STATUS_PARAM)
175 return a <= b && a >= b;
177 INLINE int float32_le_quiet( float32 a, float32 b STATUS_PARAM)
179 return islessequal(a, b);
181 INLINE int float32_lt_quiet( float32 a, float32 b STATUS_PARAM)
185 INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM)
187 return isunordered(a, b);
190 int float32_compare( float32, float32 STATUS_PARAM );
191 int float32_compare_quiet( float32, float32 STATUS_PARAM );
192 int float32_is_signaling_nan( float32 );
194 INLINE float32 float32_abs(float32 a)
199 INLINE float32 float32_chs(float32 a)
204 /*----------------------------------------------------------------------------
205 | Software IEC/IEEE double-precision conversion routines.
206 *----------------------------------------------------------------------------*/
207 int float64_to_int32( float64 STATUS_PARAM );
208 int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
209 unsigned int float64_to_uint32( float64 STATUS_PARAM );
210 unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
211 int64_t float64_to_int64( float64 STATUS_PARAM );
212 int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );
213 uint64_t float64_to_uint64( float64 STATUS_PARAM );
214 uint64_t float64_to_uint64_round_to_zero( float64 STATUS_PARAM );
215 float32 float64_to_float32( float64 STATUS_PARAM );
217 floatx80 float64_to_floatx80( float64 STATUS_PARAM );
220 float128 float64_to_float128( float64 STATUS_PARAM );
223 /*----------------------------------------------------------------------------
224 | Software IEC/IEEE double-precision operations.
225 *----------------------------------------------------------------------------*/
226 float64 float64_round_to_int( float64 STATUS_PARAM );
227 float64 float64_trunc_to_int( float64 STATUS_PARAM );
228 INLINE float64 float64_add( float64 a, float64 b STATUS_PARAM)
232 INLINE float64 float64_sub( float64 a, float64 b STATUS_PARAM)
236 INLINE float64 float64_mul( float64 a, float64 b STATUS_PARAM)
240 INLINE float64 float64_div( float64 a, float64 b STATUS_PARAM)
244 float64 float64_rem( float64, float64 STATUS_PARAM );
245 float64 float64_sqrt( float64 STATUS_PARAM );
246 INLINE int float64_eq( float64 a, float64 b STATUS_PARAM)
250 INLINE int float64_le( float64 a, float64 b STATUS_PARAM)
254 INLINE int float64_lt( float64 a, float64 b STATUS_PARAM)
258 INLINE int float64_eq_signaling( float64 a, float64 b STATUS_PARAM)
260 return a <= b && a >= b;
262 INLINE int float64_le_quiet( float64 a, float64 b STATUS_PARAM)
264 return islessequal(a, b);
266 INLINE int float64_lt_quiet( float64 a, float64 b STATUS_PARAM)
271 INLINE int float64_unordered( float64 a, float64 b STATUS_PARAM)
273 return isunordered(a, b);
276 int float64_compare( float64, float64 STATUS_PARAM );
277 int float64_compare_quiet( float64, float64 STATUS_PARAM );
278 int float64_is_signaling_nan( float64 );
279 int float64_is_nan( float64 );
281 INLINE float64 float64_abs(float64 a)
286 INLINE float64 float64_chs(float64 a)
293 /*----------------------------------------------------------------------------
294 | Software IEC/IEEE extended double-precision conversion routines.
295 *----------------------------------------------------------------------------*/
296 int floatx80_to_int32( floatx80 STATUS_PARAM );
297 int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
298 int64_t floatx80_to_int64( floatx80 STATUS_PARAM);
299 int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM);
300 float32 floatx80_to_float32( floatx80 STATUS_PARAM );
301 float64 floatx80_to_float64( floatx80 STATUS_PARAM );
303 float128 floatx80_to_float128( floatx80 STATUS_PARAM );
306 /*----------------------------------------------------------------------------
307 | Software IEC/IEEE extended double-precision operations.
308 *----------------------------------------------------------------------------*/
309 floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM );
310 INLINE floatx80 floatx80_add( floatx80 a, floatx80 b STATUS_PARAM)
314 INLINE floatx80 floatx80_sub( floatx80 a, floatx80 b STATUS_PARAM)
318 INLINE floatx80 floatx80_mul( floatx80 a, floatx80 b STATUS_PARAM)
322 INLINE floatx80 floatx80_div( floatx80 a, floatx80 b STATUS_PARAM)
326 floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM );
327 floatx80 floatx80_sqrt( floatx80 STATUS_PARAM );
328 INLINE int floatx80_eq( floatx80 a, floatx80 b STATUS_PARAM)
332 INLINE int floatx80_le( floatx80 a, floatx80 b STATUS_PARAM)
336 INLINE int floatx80_lt( floatx80 a, floatx80 b STATUS_PARAM)
340 INLINE int floatx80_eq_signaling( floatx80 a, floatx80 b STATUS_PARAM)
342 return a <= b && a >= b;
344 INLINE int floatx80_le_quiet( floatx80 a, floatx80 b STATUS_PARAM)
346 return islessequal(a, b);
348 INLINE int floatx80_lt_quiet( floatx80 a, floatx80 b STATUS_PARAM)
353 INLINE int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM)
355 return isunordered(a, b);
358 int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
359 int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
360 int floatx80_is_signaling_nan( floatx80 );
362 INLINE floatx80 floatx80_abs(floatx80 a)
367 INLINE floatx80 floatx80_chs(floatx80 a)