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158142c2 FB |
1 | /*============================================================================ |
2 | ||
3 | This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic | |
4 | Package, Release 2b. | |
5 | ||
6 | Written by John R. Hauser. This work was made possible in part by the | |
7 | International Computer Science Institute, located at Suite 600, 1947 Center | |
8 | Street, Berkeley, California 94704. Funding was partially provided by the | |
9 | National Science Foundation under grant MIP-9311980. The original version | |
10 | of this code was written as part of a project to build a fixed-point vector | |
11 | processor in collaboration with the University of California at Berkeley, | |
12 | overseen by Profs. Nelson Morgan and John Wawrzynek. More information | |
13 | is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ | |
14 | arithmetic/SoftFloat.html'. | |
15 | ||
16 | THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has | |
17 | been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES | |
18 | RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS | |
19 | AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, | |
20 | COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE | |
21 | EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE | |
22 | INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR | |
23 | OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. | |
24 | ||
25 | Derivative works are acceptable, even for commercial purposes, so long as | |
26 | (1) the source code for the derivative work includes prominent notice that | |
27 | the work is derivative, and (2) the source code includes prominent notice with | |
28 | these four paragraphs for those parts of this code that are retained. | |
29 | ||
30 | =============================================================================*/ | |
31 | ||
32 | #ifndef SOFTFLOAT_H | |
33 | #define SOFTFLOAT_H | |
34 | ||
75b5a697 | 35 | #if defined(CONFIG_SOLARIS) && defined(CONFIG_NEEDS_LIBSUNMATH) |
0475a5ca TS |
36 | #include <sunmath.h> |
37 | #endif | |
38 | ||
158142c2 FB |
39 | #include <inttypes.h> |
40 | #include "config.h" | |
41 | ||
42 | /*---------------------------------------------------------------------------- | |
43 | | Each of the following `typedef's defines the most convenient type that holds | |
44 | | integers of at least as many bits as specified. For example, `uint8' should | |
45 | | be the most convenient type that can hold unsigned integers of as many as | |
46 | | 8 bits. The `flag' type must be able to hold either a 0 or 1. For most | |
47 | | implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed | |
48 | | to the same as `int'. | |
49 | *----------------------------------------------------------------------------*/ | |
750afe93 | 50 | typedef uint8_t flag; |
158142c2 FB |
51 | typedef uint8_t uint8; |
52 | typedef int8_t int8; | |
b29fe3ed | 53 | #ifndef _AIX |
158142c2 FB |
54 | typedef int uint16; |
55 | typedef int int16; | |
b29fe3ed | 56 | #endif |
158142c2 FB |
57 | typedef unsigned int uint32; |
58 | typedef signed int int32; | |
59 | typedef uint64_t uint64; | |
60 | typedef int64_t int64; | |
61 | ||
62 | /*---------------------------------------------------------------------------- | |
63 | | Each of the following `typedef's defines a type that holds integers | |
64 | | of _exactly_ the number of bits specified. For instance, for most | |
65 | | implementation of C, `bits16' and `sbits16' should be `typedef'ed to | |
66 | | `unsigned short int' and `signed short int' (or `short int'), respectively. | |
67 | *----------------------------------------------------------------------------*/ | |
68 | typedef uint8_t bits8; | |
69 | typedef int8_t sbits8; | |
70 | typedef uint16_t bits16; | |
71 | typedef int16_t sbits16; | |
72 | typedef uint32_t bits32; | |
73 | typedef int32_t sbits32; | |
74 | typedef uint64_t bits64; | |
75 | typedef int64_t sbits64; | |
76 | ||
77 | #define LIT64( a ) a##LL | |
78 | #define INLINE static inline | |
79 | ||
80 | /*---------------------------------------------------------------------------- | |
81 | | The macro `FLOATX80' must be defined to enable the extended double-precision | |
82 | | floating-point format `floatx80'. If this macro is not defined, the | |
83 | | `floatx80' type will not be defined, and none of the functions that either | |
84 | | input or output the `floatx80' type will be defined. The same applies to | |
85 | | the `FLOAT128' macro and the quadruple-precision format `float128'. | |
86 | *----------------------------------------------------------------------------*/ | |
87 | #ifdef CONFIG_SOFTFLOAT | |
88 | /* bit exact soft float support */ | |
89 | #define FLOATX80 | |
90 | #define FLOAT128 | |
91 | #else | |
92 | /* native float support */ | |
71e72a19 | 93 | #if (defined(__i386__) || defined(__x86_64__)) && !defined(CONFIG_BSD) |
158142c2 FB |
94 | #define FLOATX80 |
95 | #endif | |
96 | #endif /* !CONFIG_SOFTFLOAT */ | |
97 | ||
98 | #define STATUS_PARAM , float_status *status | |
99 | #define STATUS(field) status->field | |
100 | #define STATUS_VAR , status | |
101 | ||
1d6bda35 FB |
102 | /*---------------------------------------------------------------------------- |
103 | | Software IEC/IEEE floating-point ordering relations | |
104 | *----------------------------------------------------------------------------*/ | |
105 | enum { | |
106 | float_relation_less = -1, | |
107 | float_relation_equal = 0, | |
108 | float_relation_greater = 1, | |
109 | float_relation_unordered = 2 | |
110 | }; | |
111 | ||
158142c2 FB |
112 | #ifdef CONFIG_SOFTFLOAT |
113 | /*---------------------------------------------------------------------------- | |
114 | | Software IEC/IEEE floating-point types. | |
115 | *----------------------------------------------------------------------------*/ | |
f090c9d4 PB |
116 | /* Use structures for soft-float types. This prevents accidentally mixing |
117 | them with native int/float types. A sufficiently clever compiler and | |
118 | sane ABI should be able to see though these structs. However | |
119 | x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */ | |
120 | //#define USE_SOFTFLOAT_STRUCT_TYPES | |
121 | #ifdef USE_SOFTFLOAT_STRUCT_TYPES | |
122 | typedef struct { | |
123 | uint32_t v; | |
124 | } float32; | |
125 | /* The cast ensures an error if the wrong type is passed. */ | |
126 | #define float32_val(x) (((float32)(x)).v) | |
127 | #define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; }) | |
128 | typedef struct { | |
129 | uint64_t v; | |
130 | } float64; | |
131 | #define float64_val(x) (((float64)(x)).v) | |
132 | #define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; }) | |
133 | #else | |
158142c2 FB |
134 | typedef uint32_t float32; |
135 | typedef uint64_t float64; | |
f090c9d4 PB |
136 | #define float32_val(x) (x) |
137 | #define float64_val(x) (x) | |
138 | #define make_float32(x) (x) | |
139 | #define make_float64(x) (x) | |
140 | #endif | |
158142c2 FB |
141 | #ifdef FLOATX80 |
142 | typedef struct { | |
143 | uint64_t low; | |
144 | uint16_t high; | |
145 | } floatx80; | |
146 | #endif | |
147 | #ifdef FLOAT128 | |
148 | typedef struct { | |
e2542fe2 | 149 | #ifdef HOST_WORDS_BIGENDIAN |
158142c2 FB |
150 | uint64_t high, low; |
151 | #else | |
152 | uint64_t low, high; | |
153 | #endif | |
154 | } float128; | |
155 | #endif | |
156 | ||
157 | /*---------------------------------------------------------------------------- | |
158 | | Software IEC/IEEE floating-point underflow tininess-detection mode. | |
159 | *----------------------------------------------------------------------------*/ | |
160 | enum { | |
161 | float_tininess_after_rounding = 0, | |
162 | float_tininess_before_rounding = 1 | |
163 | }; | |
164 | ||
165 | /*---------------------------------------------------------------------------- | |
166 | | Software IEC/IEEE floating-point rounding mode. | |
167 | *----------------------------------------------------------------------------*/ | |
168 | enum { | |
169 | float_round_nearest_even = 0, | |
170 | float_round_down = 1, | |
171 | float_round_up = 2, | |
172 | float_round_to_zero = 3 | |
173 | }; | |
174 | ||
175 | /*---------------------------------------------------------------------------- | |
176 | | Software IEC/IEEE floating-point exception flags. | |
177 | *----------------------------------------------------------------------------*/ | |
178 | enum { | |
179 | float_flag_invalid = 1, | |
180 | float_flag_divbyzero = 4, | |
181 | float_flag_overflow = 8, | |
182 | float_flag_underflow = 16, | |
183 | float_flag_inexact = 32 | |
184 | }; | |
185 | ||
186 | typedef struct float_status { | |
187 | signed char float_detect_tininess; | |
188 | signed char float_rounding_mode; | |
189 | signed char float_exception_flags; | |
190 | #ifdef FLOATX80 | |
191 | signed char floatx80_rounding_precision; | |
192 | #endif | |
fe76d976 | 193 | flag flush_to_zero; |
5c7908ed | 194 | flag default_nan_mode; |
158142c2 FB |
195 | } float_status; |
196 | ||
197 | void set_float_rounding_mode(int val STATUS_PARAM); | |
1d6bda35 | 198 | void set_float_exception_flags(int val STATUS_PARAM); |
fe76d976 PB |
199 | INLINE void set_flush_to_zero(flag val STATUS_PARAM) |
200 | { | |
201 | STATUS(flush_to_zero) = val; | |
202 | } | |
5c7908ed PB |
203 | INLINE void set_default_nan_mode(flag val STATUS_PARAM) |
204 | { | |
205 | STATUS(default_nan_mode) = val; | |
206 | } | |
1d6bda35 FB |
207 | INLINE int get_float_exception_flags(float_status *status) |
208 | { | |
209 | return STATUS(float_exception_flags); | |
210 | } | |
158142c2 FB |
211 | #ifdef FLOATX80 |
212 | void set_floatx80_rounding_precision(int val STATUS_PARAM); | |
213 | #endif | |
214 | ||
215 | /*---------------------------------------------------------------------------- | |
216 | | Routine to raise any or all of the software IEC/IEEE floating-point | |
217 | | exception flags. | |
218 | *----------------------------------------------------------------------------*/ | |
ec530c81 | 219 | void float_raise( int8 flags STATUS_PARAM); |
158142c2 FB |
220 | |
221 | /*---------------------------------------------------------------------------- | |
222 | | Software IEC/IEEE integer-to-floating-point conversion routines. | |
223 | *----------------------------------------------------------------------------*/ | |
224 | float32 int32_to_float32( int STATUS_PARAM ); | |
225 | float64 int32_to_float64( int STATUS_PARAM ); | |
1d6bda35 FB |
226 | float32 uint32_to_float32( unsigned int STATUS_PARAM ); |
227 | float64 uint32_to_float64( unsigned int STATUS_PARAM ); | |
158142c2 FB |
228 | #ifdef FLOATX80 |
229 | floatx80 int32_to_floatx80( int STATUS_PARAM ); | |
230 | #endif | |
231 | #ifdef FLOAT128 | |
232 | float128 int32_to_float128( int STATUS_PARAM ); | |
233 | #endif | |
234 | float32 int64_to_float32( int64_t STATUS_PARAM ); | |
75d62a58 | 235 | float32 uint64_to_float32( uint64_t STATUS_PARAM ); |
158142c2 | 236 | float64 int64_to_float64( int64_t STATUS_PARAM ); |
75d62a58 | 237 | float64 uint64_to_float64( uint64_t STATUS_PARAM ); |
158142c2 FB |
238 | #ifdef FLOATX80 |
239 | floatx80 int64_to_floatx80( int64_t STATUS_PARAM ); | |
240 | #endif | |
241 | #ifdef FLOAT128 | |
242 | float128 int64_to_float128( int64_t STATUS_PARAM ); | |
243 | #endif | |
244 | ||
60011498 PB |
245 | /*---------------------------------------------------------------------------- |
246 | | Software half-precision conversion routines. | |
247 | *----------------------------------------------------------------------------*/ | |
248 | bits16 float32_to_float16( float32, flag STATUS_PARAM ); | |
249 | float32 float16_to_float32( bits16, flag STATUS_PARAM ); | |
250 | ||
158142c2 FB |
251 | /*---------------------------------------------------------------------------- |
252 | | Software IEC/IEEE single-precision conversion routines. | |
253 | *----------------------------------------------------------------------------*/ | |
cbcef455 PM |
254 | int float32_to_int16_round_to_zero( float32 STATUS_PARAM ); |
255 | unsigned int float32_to_uint16_round_to_zero( float32 STATUS_PARAM ); | |
158142c2 FB |
256 | int float32_to_int32( float32 STATUS_PARAM ); |
257 | int float32_to_int32_round_to_zero( float32 STATUS_PARAM ); | |
1d6bda35 FB |
258 | unsigned int float32_to_uint32( float32 STATUS_PARAM ); |
259 | unsigned int float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); | |
158142c2 FB |
260 | int64_t float32_to_int64( float32 STATUS_PARAM ); |
261 | int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM ); | |
262 | float64 float32_to_float64( float32 STATUS_PARAM ); | |
263 | #ifdef FLOATX80 | |
264 | floatx80 float32_to_floatx80( float32 STATUS_PARAM ); | |
265 | #endif | |
266 | #ifdef FLOAT128 | |
267 | float128 float32_to_float128( float32 STATUS_PARAM ); | |
268 | #endif | |
269 | ||
270 | /*---------------------------------------------------------------------------- | |
271 | | Software IEC/IEEE single-precision operations. | |
272 | *----------------------------------------------------------------------------*/ | |
273 | float32 float32_round_to_int( float32 STATUS_PARAM ); | |
274 | float32 float32_add( float32, float32 STATUS_PARAM ); | |
275 | float32 float32_sub( float32, float32 STATUS_PARAM ); | |
276 | float32 float32_mul( float32, float32 STATUS_PARAM ); | |
277 | float32 float32_div( float32, float32 STATUS_PARAM ); | |
278 | float32 float32_rem( float32, float32 STATUS_PARAM ); | |
279 | float32 float32_sqrt( float32 STATUS_PARAM ); | |
8229c991 | 280 | float32 float32_exp2( float32 STATUS_PARAM ); |
374dfc33 | 281 | float32 float32_log2( float32 STATUS_PARAM ); |
750afe93 FB |
282 | int float32_eq( float32, float32 STATUS_PARAM ); |
283 | int float32_le( float32, float32 STATUS_PARAM ); | |
284 | int float32_lt( float32, float32 STATUS_PARAM ); | |
285 | int float32_eq_signaling( float32, float32 STATUS_PARAM ); | |
286 | int float32_le_quiet( float32, float32 STATUS_PARAM ); | |
287 | int float32_lt_quiet( float32, float32 STATUS_PARAM ); | |
288 | int float32_compare( float32, float32 STATUS_PARAM ); | |
289 | int float32_compare_quiet( float32, float32 STATUS_PARAM ); | |
18569871 | 290 | int float32_is_quiet_nan( float32 ); |
750afe93 | 291 | int float32_is_signaling_nan( float32 ); |
b408dbde | 292 | float32 float32_maybe_silence_nan( float32 ); |
9ee6e8bb | 293 | float32 float32_scalbn( float32, int STATUS_PARAM ); |
158142c2 | 294 | |
1d6bda35 FB |
295 | INLINE float32 float32_abs(float32 a) |
296 | { | |
f090c9d4 | 297 | return make_float32(float32_val(a) & 0x7fffffff); |
1d6bda35 FB |
298 | } |
299 | ||
300 | INLINE float32 float32_chs(float32 a) | |
301 | { | |
f090c9d4 | 302 | return make_float32(float32_val(a) ^ 0x80000000); |
1d6bda35 FB |
303 | } |
304 | ||
c52ab6f5 AJ |
305 | INLINE int float32_is_infinity(float32 a) |
306 | { | |
dadd71a7 | 307 | return (float32_val(a) & 0x7fffffff) == 0x7f800000; |
c52ab6f5 AJ |
308 | } |
309 | ||
310 | INLINE int float32_is_neg(float32 a) | |
311 | { | |
312 | return float32_val(a) >> 31; | |
313 | } | |
314 | ||
315 | INLINE int float32_is_zero(float32 a) | |
316 | { | |
317 | return (float32_val(a) & 0x7fffffff) == 0; | |
318 | } | |
319 | ||
21d6ebde PM |
320 | INLINE int float32_is_any_nan(float32 a) |
321 | { | |
322 | return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL); | |
323 | } | |
324 | ||
f090c9d4 | 325 | #define float32_zero make_float32(0) |
196cfc89 | 326 | #define float32_one make_float32(0x3f800000) |
8229c991 | 327 | #define float32_ln2 make_float32(0x3f317218) |
f090c9d4 | 328 | |
158142c2 FB |
329 | /*---------------------------------------------------------------------------- |
330 | | Software IEC/IEEE double-precision conversion routines. | |
331 | *----------------------------------------------------------------------------*/ | |
cbcef455 PM |
332 | int float64_to_int16_round_to_zero( float64 STATUS_PARAM ); |
333 | unsigned int float64_to_uint16_round_to_zero( float64 STATUS_PARAM ); | |
158142c2 FB |
334 | int float64_to_int32( float64 STATUS_PARAM ); |
335 | int float64_to_int32_round_to_zero( float64 STATUS_PARAM ); | |
1d6bda35 FB |
336 | unsigned int float64_to_uint32( float64 STATUS_PARAM ); |
337 | unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); | |
158142c2 FB |
338 | int64_t float64_to_int64( float64 STATUS_PARAM ); |
339 | int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM ); | |
75d62a58 JM |
340 | uint64_t float64_to_uint64 (float64 a STATUS_PARAM); |
341 | uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM); | |
158142c2 FB |
342 | float32 float64_to_float32( float64 STATUS_PARAM ); |
343 | #ifdef FLOATX80 | |
344 | floatx80 float64_to_floatx80( float64 STATUS_PARAM ); | |
345 | #endif | |
346 | #ifdef FLOAT128 | |
347 | float128 float64_to_float128( float64 STATUS_PARAM ); | |
348 | #endif | |
349 | ||
350 | /*---------------------------------------------------------------------------- | |
351 | | Software IEC/IEEE double-precision operations. | |
352 | *----------------------------------------------------------------------------*/ | |
353 | float64 float64_round_to_int( float64 STATUS_PARAM ); | |
e6e5906b | 354 | float64 float64_trunc_to_int( float64 STATUS_PARAM ); |
158142c2 FB |
355 | float64 float64_add( float64, float64 STATUS_PARAM ); |
356 | float64 float64_sub( float64, float64 STATUS_PARAM ); | |
357 | float64 float64_mul( float64, float64 STATUS_PARAM ); | |
358 | float64 float64_div( float64, float64 STATUS_PARAM ); | |
359 | float64 float64_rem( float64, float64 STATUS_PARAM ); | |
360 | float64 float64_sqrt( float64 STATUS_PARAM ); | |
374dfc33 | 361 | float64 float64_log2( float64 STATUS_PARAM ); |
750afe93 FB |
362 | int float64_eq( float64, float64 STATUS_PARAM ); |
363 | int float64_le( float64, float64 STATUS_PARAM ); | |
364 | int float64_lt( float64, float64 STATUS_PARAM ); | |
365 | int float64_eq_signaling( float64, float64 STATUS_PARAM ); | |
366 | int float64_le_quiet( float64, float64 STATUS_PARAM ); | |
367 | int float64_lt_quiet( float64, float64 STATUS_PARAM ); | |
368 | int float64_compare( float64, float64 STATUS_PARAM ); | |
369 | int float64_compare_quiet( float64, float64 STATUS_PARAM ); | |
18569871 | 370 | int float64_is_quiet_nan( float64 a ); |
750afe93 | 371 | int float64_is_signaling_nan( float64 ); |
b408dbde | 372 | float64 float64_maybe_silence_nan( float64 ); |
9ee6e8bb | 373 | float64 float64_scalbn( float64, int STATUS_PARAM ); |
158142c2 | 374 | |
1d6bda35 FB |
375 | INLINE float64 float64_abs(float64 a) |
376 | { | |
f090c9d4 | 377 | return make_float64(float64_val(a) & 0x7fffffffffffffffLL); |
1d6bda35 FB |
378 | } |
379 | ||
380 | INLINE float64 float64_chs(float64 a) | |
381 | { | |
f090c9d4 | 382 | return make_float64(float64_val(a) ^ 0x8000000000000000LL); |
1d6bda35 FB |
383 | } |
384 | ||
c52ab6f5 AJ |
385 | INLINE int float64_is_infinity(float64 a) |
386 | { | |
387 | return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; | |
388 | } | |
389 | ||
390 | INLINE int float64_is_neg(float64 a) | |
391 | { | |
392 | return float64_val(a) >> 63; | |
393 | } | |
394 | ||
395 | INLINE int float64_is_zero(float64 a) | |
396 | { | |
397 | return (float64_val(a) & 0x7fffffffffffffffLL) == 0; | |
398 | } | |
399 | ||
21d6ebde PM |
400 | INLINE int float64_is_any_nan(float64 a) |
401 | { | |
402 | return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL); | |
403 | } | |
404 | ||
f090c9d4 | 405 | #define float64_zero make_float64(0) |
196cfc89 | 406 | #define float64_one make_float64(0x3ff0000000000000LL) |
8229c991 | 407 | #define float64_ln2 make_float64(0x3fe62e42fefa39efLL) |
f090c9d4 | 408 | |
158142c2 FB |
409 | #ifdef FLOATX80 |
410 | ||
411 | /*---------------------------------------------------------------------------- | |
412 | | Software IEC/IEEE extended double-precision conversion routines. | |
413 | *----------------------------------------------------------------------------*/ | |
414 | int floatx80_to_int32( floatx80 STATUS_PARAM ); | |
415 | int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM ); | |
416 | int64_t floatx80_to_int64( floatx80 STATUS_PARAM ); | |
417 | int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); | |
418 | float32 floatx80_to_float32( floatx80 STATUS_PARAM ); | |
419 | float64 floatx80_to_float64( floatx80 STATUS_PARAM ); | |
420 | #ifdef FLOAT128 | |
421 | float128 floatx80_to_float128( floatx80 STATUS_PARAM ); | |
422 | #endif | |
423 | ||
424 | /*---------------------------------------------------------------------------- | |
425 | | Software IEC/IEEE extended double-precision operations. | |
426 | *----------------------------------------------------------------------------*/ | |
427 | floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); | |
428 | floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); | |
429 | floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); | |
430 | floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); | |
431 | floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); | |
432 | floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); | |
433 | floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); | |
750afe93 FB |
434 | int floatx80_eq( floatx80, floatx80 STATUS_PARAM ); |
435 | int floatx80_le( floatx80, floatx80 STATUS_PARAM ); | |
436 | int floatx80_lt( floatx80, floatx80 STATUS_PARAM ); | |
437 | int floatx80_eq_signaling( floatx80, floatx80 STATUS_PARAM ); | |
438 | int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM ); | |
439 | int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM ); | |
18569871 | 440 | int floatx80_is_quiet_nan( floatx80 ); |
750afe93 | 441 | int floatx80_is_signaling_nan( floatx80 ); |
9ee6e8bb | 442 | floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM ); |
158142c2 | 443 | |
1d6bda35 FB |
444 | INLINE floatx80 floatx80_abs(floatx80 a) |
445 | { | |
446 | a.high &= 0x7fff; | |
447 | return a; | |
448 | } | |
449 | ||
450 | INLINE floatx80 floatx80_chs(floatx80 a) | |
451 | { | |
452 | a.high ^= 0x8000; | |
453 | return a; | |
454 | } | |
455 | ||
c52ab6f5 AJ |
456 | INLINE int floatx80_is_infinity(floatx80 a) |
457 | { | |
458 | return (a.high & 0x7fff) == 0x7fff && a.low == 0; | |
459 | } | |
460 | ||
461 | INLINE int floatx80_is_neg(floatx80 a) | |
462 | { | |
463 | return a.high >> 15; | |
464 | } | |
465 | ||
466 | INLINE int floatx80_is_zero(floatx80 a) | |
467 | { | |
468 | return (a.high & 0x7fff) == 0 && a.low == 0; | |
469 | } | |
470 | ||
158142c2 FB |
471 | #endif |
472 | ||
473 | #ifdef FLOAT128 | |
474 | ||
475 | /*---------------------------------------------------------------------------- | |
476 | | Software IEC/IEEE quadruple-precision conversion routines. | |
477 | *----------------------------------------------------------------------------*/ | |
478 | int float128_to_int32( float128 STATUS_PARAM ); | |
479 | int float128_to_int32_round_to_zero( float128 STATUS_PARAM ); | |
480 | int64_t float128_to_int64( float128 STATUS_PARAM ); | |
481 | int64_t float128_to_int64_round_to_zero( float128 STATUS_PARAM ); | |
482 | float32 float128_to_float32( float128 STATUS_PARAM ); | |
483 | float64 float128_to_float64( float128 STATUS_PARAM ); | |
484 | #ifdef FLOATX80 | |
485 | floatx80 float128_to_floatx80( float128 STATUS_PARAM ); | |
486 | #endif | |
487 | ||
488 | /*---------------------------------------------------------------------------- | |
489 | | Software IEC/IEEE quadruple-precision operations. | |
490 | *----------------------------------------------------------------------------*/ | |
491 | float128 float128_round_to_int( float128 STATUS_PARAM ); | |
492 | float128 float128_add( float128, float128 STATUS_PARAM ); | |
493 | float128 float128_sub( float128, float128 STATUS_PARAM ); | |
494 | float128 float128_mul( float128, float128 STATUS_PARAM ); | |
495 | float128 float128_div( float128, float128 STATUS_PARAM ); | |
496 | float128 float128_rem( float128, float128 STATUS_PARAM ); | |
497 | float128 float128_sqrt( float128 STATUS_PARAM ); | |
750afe93 FB |
498 | int float128_eq( float128, float128 STATUS_PARAM ); |
499 | int float128_le( float128, float128 STATUS_PARAM ); | |
500 | int float128_lt( float128, float128 STATUS_PARAM ); | |
501 | int float128_eq_signaling( float128, float128 STATUS_PARAM ); | |
502 | int float128_le_quiet( float128, float128 STATUS_PARAM ); | |
503 | int float128_lt_quiet( float128, float128 STATUS_PARAM ); | |
1f587329 BS |
504 | int float128_compare( float128, float128 STATUS_PARAM ); |
505 | int float128_compare_quiet( float128, float128 STATUS_PARAM ); | |
18569871 | 506 | int float128_is_quiet_nan( float128 ); |
750afe93 | 507 | int float128_is_signaling_nan( float128 ); |
9ee6e8bb | 508 | float128 float128_scalbn( float128, int STATUS_PARAM ); |
158142c2 | 509 | |
1d6bda35 FB |
510 | INLINE float128 float128_abs(float128 a) |
511 | { | |
512 | a.high &= 0x7fffffffffffffffLL; | |
513 | return a; | |
514 | } | |
515 | ||
516 | INLINE float128 float128_chs(float128 a) | |
517 | { | |
518 | a.high ^= 0x8000000000000000LL; | |
519 | return a; | |
520 | } | |
521 | ||
c52ab6f5 AJ |
522 | INLINE int float128_is_infinity(float128 a) |
523 | { | |
524 | return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; | |
525 | } | |
526 | ||
527 | INLINE int float128_is_neg(float128 a) | |
528 | { | |
529 | return a.high >> 63; | |
530 | } | |
531 | ||
532 | INLINE int float128_is_zero(float128 a) | |
533 | { | |
534 | return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; | |
535 | } | |
536 | ||
158142c2 FB |
537 | #endif |
538 | ||
539 | #else /* CONFIG_SOFTFLOAT */ | |
540 | ||
541 | #include "softfloat-native.h" | |
542 | ||
543 | #endif /* !CONFIG_SOFTFLOAT */ | |
544 | ||
545 | #endif /* !SOFTFLOAT_H */ |