4
* Derived from SoftFloat.
7
/*============================================================================
9
This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic
12
Written by John R. Hauser. This work was made possible in part by the
13
International Computer Science Institute, located at Suite 600, 1947 Center
14
Street, Berkeley, California 94704. Funding was partially provided by the
15
National Science Foundation under grant MIP-9311980. The original version
16
of this code was written as part of a project to build a fixed-point vector
17
processor in collaboration with the University of California at Berkeley,
18
overseen by Profs. Nelson Morgan and John Wawrzynek. More information
19
is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
20
arithmetic/SoftFloat.html'.
22
THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has
23
been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
24
RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
25
AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
26
COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
27
EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
28
INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
29
OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
31
Derivative works are acceptable, even for commercial purposes, so long as
32
(1) the source code for the derivative work includes prominent notice that
33
the work is derivative, and (2) the source code includes prominent notice with
34
these four paragraphs for those parts of this code that are retained.
36
=============================================================================*/
41
#if defined(CONFIG_SOLARIS) && defined(CONFIG_NEEDS_LIBSUNMATH)
46
#include "config-host.h"
47
#include "qemu/osdep.h"
49
/*----------------------------------------------------------------------------
50
| Each of the following `typedef's defines the most convenient type that holds
51
| integers of at least as many bits as specified. For example, `uint8' should
52
| be the most convenient type that can hold unsigned integers of as many as
53
| 8 bits. The `flag' type must be able to hold either a 0 or 1. For most
54
| implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
55
| to the same as `int'.
56
*----------------------------------------------------------------------------*/
58
typedef uint8_t uint8;
60
typedef unsigned int uint32;
61
typedef signed int int32;
62
typedef uint64_t uint64;
63
typedef int64_t int64;
65
#define LIT64( a ) a##LL
66
#define INLINE static inline
68
#define STATUS_PARAM , float_status *status
69
#define STATUS(field) status->field
70
#define STATUS_VAR , status
72
/*----------------------------------------------------------------------------
73
| Software IEC/IEEE floating-point ordering relations
74
*----------------------------------------------------------------------------*/
76
float_relation_less = -1,
77
float_relation_equal = 0,
78
float_relation_greater = 1,
79
float_relation_unordered = 2
82
/*----------------------------------------------------------------------------
83
| Software IEC/IEEE floating-point types.
84
*----------------------------------------------------------------------------*/
85
/* Use structures for soft-float types. This prevents accidentally mixing
86
them with native int/float types. A sufficiently clever compiler and
87
sane ABI should be able to see though these structs. However
88
x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */
89
//#define USE_SOFTFLOAT_STRUCT_TYPES
90
#ifdef USE_SOFTFLOAT_STRUCT_TYPES
94
#define float16_val(x) (((float16)(x)).v)
95
#define make_float16(x) __extension__ ({ float16 f16_val = {x}; f16_val; })
96
#define const_float16(x) { x }
100
/* The cast ensures an error if the wrong type is passed. */
101
#define float32_val(x) (((float32)(x)).v)
102
#define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; })
103
#define const_float32(x) { x }
107
#define float64_val(x) (((float64)(x)).v)
108
#define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; })
109
#define const_float64(x) { x }
111
typedef uint16_t float16;
112
typedef uint32_t float32;
113
typedef uint64_t float64;
114
#define float16_val(x) (x)
115
#define float32_val(x) (x)
116
#define float64_val(x) (x)
117
#define make_float16(x) (x)
118
#define make_float32(x) (x)
119
#define make_float64(x) (x)
120
#define const_float16(x) (x)
121
#define const_float32(x) (x)
122
#define const_float64(x) (x)
128
#define make_floatx80(exp, mant) ((floatx80) { mant, exp })
129
#define make_floatx80_init(exp, mant) { .low = mant, .high = exp }
131
#ifdef HOST_WORDS_BIGENDIAN
137
#define make_float128(high_, low_) ((float128) { .high = high_, .low = low_ })
138
#define make_float128_init(high_, low_) { .high = high_, .low = low_ }
140
/*----------------------------------------------------------------------------
141
| Software IEC/IEEE floating-point underflow tininess-detection mode.
142
*----------------------------------------------------------------------------*/
144
float_tininess_after_rounding = 0,
145
float_tininess_before_rounding = 1
148
/*----------------------------------------------------------------------------
149
| Software IEC/IEEE floating-point rounding mode.
150
*----------------------------------------------------------------------------*/
152
float_round_nearest_even = 0,
153
float_round_down = 1,
155
float_round_to_zero = 3
158
/*----------------------------------------------------------------------------
159
| Software IEC/IEEE floating-point exception flags.
160
*----------------------------------------------------------------------------*/
162
float_flag_invalid = 1,
163
float_flag_divbyzero = 4,
164
float_flag_overflow = 8,
165
float_flag_underflow = 16,
166
float_flag_inexact = 32,
167
float_flag_input_denormal = 64,
168
float_flag_output_denormal = 128
171
typedef struct float_status {
172
signed char float_detect_tininess;
173
signed char float_rounding_mode;
174
signed char float_exception_flags;
175
signed char floatx80_rounding_precision;
176
/* should denormalised results go to zero and set the inexact flag? */
178
/* should denormalised inputs go to zero and set the input_denormal flag? */
179
flag flush_inputs_to_zero;
180
flag default_nan_mode;
183
void set_float_rounding_mode(int val STATUS_PARAM);
184
void set_float_exception_flags(int val STATUS_PARAM);
185
INLINE void set_float_detect_tininess(int val STATUS_PARAM)
187
STATUS(float_detect_tininess) = val;
189
INLINE void set_flush_to_zero(flag val STATUS_PARAM)
191
STATUS(flush_to_zero) = val;
193
INLINE void set_flush_inputs_to_zero(flag val STATUS_PARAM)
195
STATUS(flush_inputs_to_zero) = val;
197
INLINE void set_default_nan_mode(flag val STATUS_PARAM)
199
STATUS(default_nan_mode) = val;
201
INLINE int get_float_exception_flags(float_status *status)
203
return STATUS(float_exception_flags);
205
void set_floatx80_rounding_precision(int val STATUS_PARAM);
207
/*----------------------------------------------------------------------------
208
| Routine to raise any or all of the software IEC/IEEE floating-point
210
*----------------------------------------------------------------------------*/
211
void float_raise( int8 flags STATUS_PARAM);
213
/*----------------------------------------------------------------------------
214
| Options to indicate which negations to perform in float*_muladd()
215
| Using these differs from negating an input or output before calling
216
| the muladd function in that this means that a NaN doesn't have its
217
| sign bit inverted before it is propagated.
218
*----------------------------------------------------------------------------*/
220
float_muladd_negate_c = 1,
221
float_muladd_negate_product = 2,
222
float_muladd_negate_result = 4,
225
/*----------------------------------------------------------------------------
226
| Software IEC/IEEE integer-to-floating-point conversion routines.
227
*----------------------------------------------------------------------------*/
228
float32 int32_to_float32( int32 STATUS_PARAM );
229
float64 int32_to_float64( int32 STATUS_PARAM );
230
float32 uint32_to_float32( uint32 STATUS_PARAM );
231
float64 uint32_to_float64( uint32 STATUS_PARAM );
232
floatx80 int32_to_floatx80( int32 STATUS_PARAM );
233
float128 int32_to_float128( int32 STATUS_PARAM );
234
float32 int64_to_float32( int64 STATUS_PARAM );
235
float32 uint64_to_float32( uint64 STATUS_PARAM );
236
float64 int64_to_float64( int64 STATUS_PARAM );
237
float64 uint64_to_float64( uint64 STATUS_PARAM );
238
floatx80 int64_to_floatx80( int64 STATUS_PARAM );
239
float128 int64_to_float128( int64 STATUS_PARAM );
240
float128 uint64_to_float128( uint64 STATUS_PARAM );
242
/*----------------------------------------------------------------------------
243
| Software half-precision conversion routines.
244
*----------------------------------------------------------------------------*/
245
float16 float32_to_float16( float32, flag STATUS_PARAM );
246
float32 float16_to_float32( float16, flag STATUS_PARAM );
248
/*----------------------------------------------------------------------------
249
| Software half-precision operations.
250
*----------------------------------------------------------------------------*/
251
int float16_is_quiet_nan( float16 );
252
int float16_is_signaling_nan( float16 );
253
float16 float16_maybe_silence_nan( float16 );
255
INLINE int float16_is_any_nan(float16 a)
257
return ((float16_val(a) & ~0x8000) > 0x7c00);
260
/*----------------------------------------------------------------------------
261
| The pattern for a default generated half-precision NaN.
262
*----------------------------------------------------------------------------*/
263
extern const float16 float16_default_nan;
265
/*----------------------------------------------------------------------------
266
| Software IEC/IEEE single-precision conversion routines.
267
*----------------------------------------------------------------------------*/
268
int_fast16_t float32_to_int16(float32 STATUS_PARAM);
269
uint_fast16_t float32_to_uint16(float32 STATUS_PARAM);
270
int_fast16_t float32_to_int16_round_to_zero(float32 STATUS_PARAM);
271
uint_fast16_t float32_to_uint16_round_to_zero(float32 STATUS_PARAM);
272
int32 float32_to_int32( float32 STATUS_PARAM );
273
int32 float32_to_int32_round_to_zero( float32 STATUS_PARAM );
274
uint32 float32_to_uint32( float32 STATUS_PARAM );
275
uint32 float32_to_uint32_round_to_zero( float32 STATUS_PARAM );
276
int64 float32_to_int64( float32 STATUS_PARAM );
277
int64 float32_to_int64_round_to_zero( float32 STATUS_PARAM );
278
float64 float32_to_float64( float32 STATUS_PARAM );
279
floatx80 float32_to_floatx80( float32 STATUS_PARAM );
280
float128 float32_to_float128( float32 STATUS_PARAM );
282
/*----------------------------------------------------------------------------
283
| Software IEC/IEEE single-precision operations.
284
*----------------------------------------------------------------------------*/
285
float32 float32_round_to_int( float32 STATUS_PARAM );
286
float32 float32_add( float32, float32 STATUS_PARAM );
287
float32 float32_sub( float32, float32 STATUS_PARAM );
288
float32 float32_mul( float32, float32 STATUS_PARAM );
289
float32 float32_div( float32, float32 STATUS_PARAM );
290
float32 float32_rem( float32, float32 STATUS_PARAM );
291
float32 float32_muladd(float32, float32, float32, int STATUS_PARAM);
292
float32 float32_sqrt( float32 STATUS_PARAM );
293
float32 float32_exp2( float32 STATUS_PARAM );
294
float32 float32_log2( float32 STATUS_PARAM );
295
int float32_eq( float32, float32 STATUS_PARAM );
296
int float32_le( float32, float32 STATUS_PARAM );
297
int float32_lt( float32, float32 STATUS_PARAM );
298
int float32_unordered( float32, float32 STATUS_PARAM );
299
int float32_eq_quiet( float32, float32 STATUS_PARAM );
300
int float32_le_quiet( float32, float32 STATUS_PARAM );
301
int float32_lt_quiet( float32, float32 STATUS_PARAM );
302
int float32_unordered_quiet( float32, float32 STATUS_PARAM );
303
int float32_compare( float32, float32 STATUS_PARAM );
304
int float32_compare_quiet( float32, float32 STATUS_PARAM );
305
float32 float32_min(float32, float32 STATUS_PARAM);
306
float32 float32_max(float32, float32 STATUS_PARAM);
307
float32 float32_minnum(float32, float32 STATUS_PARAM);
308
float32 float32_maxnum(float32, float32 STATUS_PARAM);
309
int float32_is_quiet_nan( float32 );
310
int float32_is_signaling_nan( float32 );
311
float32 float32_maybe_silence_nan( float32 );
312
float32 float32_scalbn( float32, int STATUS_PARAM );
314
INLINE float32 float32_abs(float32 a)
316
/* Note that abs does *not* handle NaN specially, nor does
317
* it flush denormal inputs to zero.
319
return make_float32(float32_val(a) & 0x7fffffff);
322
INLINE float32 float32_chs(float32 a)
324
/* Note that chs does *not* handle NaN specially, nor does
325
* it flush denormal inputs to zero.
327
return make_float32(float32_val(a) ^ 0x80000000);
330
INLINE int float32_is_infinity(float32 a)
332
return (float32_val(a) & 0x7fffffff) == 0x7f800000;
335
INLINE int float32_is_neg(float32 a)
337
return float32_val(a) >> 31;
340
INLINE int float32_is_zero(float32 a)
342
return (float32_val(a) & 0x7fffffff) == 0;
345
INLINE int float32_is_any_nan(float32 a)
347
return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL);
350
INLINE int float32_is_zero_or_denormal(float32 a)
352
return (float32_val(a) & 0x7f800000) == 0;
355
INLINE float32 float32_set_sign(float32 a, int sign)
357
return make_float32((float32_val(a) & 0x7fffffff) | (sign << 31));
360
#define float32_zero make_float32(0)
361
#define float32_one make_float32(0x3f800000)
362
#define float32_ln2 make_float32(0x3f317218)
363
#define float32_pi make_float32(0x40490fdb)
364
#define float32_half make_float32(0x3f000000)
365
#define float32_infinity make_float32(0x7f800000)
368
/*----------------------------------------------------------------------------
369
| The pattern for a default generated single-precision NaN.
370
*----------------------------------------------------------------------------*/
371
extern const float32 float32_default_nan;
373
/*----------------------------------------------------------------------------
374
| Software IEC/IEEE double-precision conversion routines.
375
*----------------------------------------------------------------------------*/
376
int_fast16_t float64_to_int16(float64 STATUS_PARAM);
377
uint_fast16_t float64_to_uint16(float64 STATUS_PARAM);
378
int_fast16_t float64_to_int16_round_to_zero(float64 STATUS_PARAM);
379
uint_fast16_t float64_to_uint16_round_to_zero(float64 STATUS_PARAM);
380
int32 float64_to_int32( float64 STATUS_PARAM );
381
int32 float64_to_int32_round_to_zero( float64 STATUS_PARAM );
382
uint32 float64_to_uint32( float64 STATUS_PARAM );
383
uint32 float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
384
int64 float64_to_int64( float64 STATUS_PARAM );
385
int64 float64_to_int64_round_to_zero( float64 STATUS_PARAM );
386
uint64 float64_to_uint64 (float64 a STATUS_PARAM);
387
uint64 float64_to_uint64_round_to_zero (float64 a STATUS_PARAM);
388
float32 float64_to_float32( float64 STATUS_PARAM );
389
floatx80 float64_to_floatx80( float64 STATUS_PARAM );
390
float128 float64_to_float128( float64 STATUS_PARAM );
392
/*----------------------------------------------------------------------------
393
| Software IEC/IEEE double-precision operations.
394
*----------------------------------------------------------------------------*/
395
float64 float64_round_to_int( float64 STATUS_PARAM );
396
float64 float64_trunc_to_int( float64 STATUS_PARAM );
397
float64 float64_add( float64, float64 STATUS_PARAM );
398
float64 float64_sub( float64, float64 STATUS_PARAM );
399
float64 float64_mul( float64, float64 STATUS_PARAM );
400
float64 float64_div( float64, float64 STATUS_PARAM );
401
float64 float64_rem( float64, float64 STATUS_PARAM );
402
float64 float64_muladd(float64, float64, float64, int STATUS_PARAM);
403
float64 float64_sqrt( float64 STATUS_PARAM );
404
float64 float64_log2( float64 STATUS_PARAM );
405
int float64_eq( float64, float64 STATUS_PARAM );
406
int float64_le( float64, float64 STATUS_PARAM );
407
int float64_lt( float64, float64 STATUS_PARAM );
408
int float64_unordered( float64, float64 STATUS_PARAM );
409
int float64_eq_quiet( float64, float64 STATUS_PARAM );
410
int float64_le_quiet( float64, float64 STATUS_PARAM );
411
int float64_lt_quiet( float64, float64 STATUS_PARAM );
412
int float64_unordered_quiet( float64, float64 STATUS_PARAM );
413
int float64_compare( float64, float64 STATUS_PARAM );
414
int float64_compare_quiet( float64, float64 STATUS_PARAM );
415
float64 float64_min(float64, float64 STATUS_PARAM);
416
float64 float64_max(float64, float64 STATUS_PARAM);
417
float64 float64_minnum(float64, float64 STATUS_PARAM);
418
float64 float64_maxnum(float64, float64 STATUS_PARAM);
419
int float64_is_quiet_nan( float64 a );
420
int float64_is_signaling_nan( float64 );
421
float64 float64_maybe_silence_nan( float64 );
422
float64 float64_scalbn( float64, int STATUS_PARAM );
424
INLINE float64 float64_abs(float64 a)
426
/* Note that abs does *not* handle NaN specially, nor does
427
* it flush denormal inputs to zero.
429
return make_float64(float64_val(a) & 0x7fffffffffffffffLL);
432
INLINE float64 float64_chs(float64 a)
434
/* Note that chs does *not* handle NaN specially, nor does
435
* it flush denormal inputs to zero.
437
return make_float64(float64_val(a) ^ 0x8000000000000000LL);
440
INLINE int float64_is_infinity(float64 a)
442
return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL;
445
INLINE int float64_is_neg(float64 a)
447
return float64_val(a) >> 63;
450
INLINE int float64_is_zero(float64 a)
452
return (float64_val(a) & 0x7fffffffffffffffLL) == 0;
455
INLINE int float64_is_any_nan(float64 a)
457
return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
460
INLINE int float64_is_zero_or_denormal(float64 a)
462
return (float64_val(a) & 0x7ff0000000000000LL) == 0;
465
INLINE float64 float64_set_sign(float64 a, int sign)
467
return make_float64((float64_val(a) & 0x7fffffffffffffffULL)
468
| ((int64_t)sign << 63));
471
#define float64_zero make_float64(0)
472
#define float64_one make_float64(0x3ff0000000000000LL)
473
#define float64_ln2 make_float64(0x3fe62e42fefa39efLL)
474
#define float64_pi make_float64(0x400921fb54442d18LL)
475
#define float64_half make_float64(0x3fe0000000000000LL)
476
#define float64_infinity make_float64(0x7ff0000000000000LL)
478
/*----------------------------------------------------------------------------
479
| The pattern for a default generated double-precision NaN.
480
*----------------------------------------------------------------------------*/
481
extern const float64 float64_default_nan;
483
/*----------------------------------------------------------------------------
484
| Software IEC/IEEE extended double-precision conversion routines.
485
*----------------------------------------------------------------------------*/
486
int32 floatx80_to_int32( floatx80 STATUS_PARAM );
487
int32 floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
488
int64 floatx80_to_int64( floatx80 STATUS_PARAM );
489
int64 floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM );
490
float32 floatx80_to_float32( floatx80 STATUS_PARAM );
491
float64 floatx80_to_float64( floatx80 STATUS_PARAM );
492
float128 floatx80_to_float128( floatx80 STATUS_PARAM );
494
/*----------------------------------------------------------------------------
495
| Software IEC/IEEE extended double-precision operations.
496
*----------------------------------------------------------------------------*/
497
floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM );
498
floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM );
499
floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM );
500
floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM );
501
floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM );
502
floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM );
503
floatx80 floatx80_sqrt( floatx80 STATUS_PARAM );
504
int floatx80_eq( floatx80, floatx80 STATUS_PARAM );
505
int floatx80_le( floatx80, floatx80 STATUS_PARAM );
506
int floatx80_lt( floatx80, floatx80 STATUS_PARAM );
507
int floatx80_unordered( floatx80, floatx80 STATUS_PARAM );
508
int floatx80_eq_quiet( floatx80, floatx80 STATUS_PARAM );
509
int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
510
int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
511
int floatx80_unordered_quiet( floatx80, floatx80 STATUS_PARAM );
512
int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
513
int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
514
int floatx80_is_quiet_nan( floatx80 );
515
int floatx80_is_signaling_nan( floatx80 );
516
floatx80 floatx80_maybe_silence_nan( floatx80 );
517
floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM );
519
INLINE floatx80 floatx80_abs(floatx80 a)
525
INLINE floatx80 floatx80_chs(floatx80 a)
531
INLINE int floatx80_is_infinity(floatx80 a)
533
return (a.high & 0x7fff) == 0x7fff && a.low == 0x8000000000000000LL;
536
INLINE int floatx80_is_neg(floatx80 a)
541
INLINE int floatx80_is_zero(floatx80 a)
543
return (a.high & 0x7fff) == 0 && a.low == 0;
546
INLINE int floatx80_is_zero_or_denormal(floatx80 a)
548
return (a.high & 0x7fff) == 0;
551
INLINE int floatx80_is_any_nan(floatx80 a)
553
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
556
#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL)
557
#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL)
558
#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL)
559
#define floatx80_pi make_floatx80(0x4000, 0xc90fdaa22168c235LL)
560
#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL)
561
#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL)
563
/*----------------------------------------------------------------------------
564
| The pattern for a default generated extended double-precision NaN.
565
*----------------------------------------------------------------------------*/
566
extern const floatx80 floatx80_default_nan;
568
/*----------------------------------------------------------------------------
569
| Software IEC/IEEE quadruple-precision conversion routines.
570
*----------------------------------------------------------------------------*/
571
int32 float128_to_int32( float128 STATUS_PARAM );
572
int32 float128_to_int32_round_to_zero( float128 STATUS_PARAM );
573
int64 float128_to_int64( float128 STATUS_PARAM );
574
int64 float128_to_int64_round_to_zero( float128 STATUS_PARAM );
575
float32 float128_to_float32( float128 STATUS_PARAM );
576
float64 float128_to_float64( float128 STATUS_PARAM );
577
floatx80 float128_to_floatx80( float128 STATUS_PARAM );
579
/*----------------------------------------------------------------------------
580
| Software IEC/IEEE quadruple-precision operations.
581
*----------------------------------------------------------------------------*/
582
float128 float128_round_to_int( float128 STATUS_PARAM );
583
float128 float128_add( float128, float128 STATUS_PARAM );
584
float128 float128_sub( float128, float128 STATUS_PARAM );
585
float128 float128_mul( float128, float128 STATUS_PARAM );
586
float128 float128_div( float128, float128 STATUS_PARAM );
587
float128 float128_rem( float128, float128 STATUS_PARAM );
588
float128 float128_sqrt( float128 STATUS_PARAM );
589
int float128_eq( float128, float128 STATUS_PARAM );
590
int float128_le( float128, float128 STATUS_PARAM );
591
int float128_lt( float128, float128 STATUS_PARAM );
592
int float128_unordered( float128, float128 STATUS_PARAM );
593
int float128_eq_quiet( float128, float128 STATUS_PARAM );
594
int float128_le_quiet( float128, float128 STATUS_PARAM );
595
int float128_lt_quiet( float128, float128 STATUS_PARAM );
596
int float128_unordered_quiet( float128, float128 STATUS_PARAM );
597
int float128_compare( float128, float128 STATUS_PARAM );
598
int float128_compare_quiet( float128, float128 STATUS_PARAM );
599
int float128_is_quiet_nan( float128 );
600
int float128_is_signaling_nan( float128 );
601
float128 float128_maybe_silence_nan( float128 );
602
float128 float128_scalbn( float128, int STATUS_PARAM );
604
INLINE float128 float128_abs(float128 a)
606
a.high &= 0x7fffffffffffffffLL;
610
INLINE float128 float128_chs(float128 a)
612
a.high ^= 0x8000000000000000LL;
616
INLINE int float128_is_infinity(float128 a)
618
return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0;
621
INLINE int float128_is_neg(float128 a)
626
INLINE int float128_is_zero(float128 a)
628
return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
631
INLINE int float128_is_zero_or_denormal(float128 a)
633
return (a.high & 0x7fff000000000000LL) == 0;
636
INLINE int float128_is_any_nan(float128 a)
638
return ((a.high >> 48) & 0x7fff) == 0x7fff &&
639
((a.low != 0) || ((a.high & 0xffffffffffffLL) != 0));
642
#define float128_zero make_float128(0, 0)
644
/*----------------------------------------------------------------------------
645
| The pattern for a default generated quadruple-precision NaN.
646
*----------------------------------------------------------------------------*/
647
extern const float128 float128_default_nan;
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#endif /* !SOFTFLOAT_H */