root / fpu / softfloat.h @ 64e58fe5
History | View | Annotate | Download (18.6 kB)
1 | 158142c2 | bellard | /*============================================================================
|
---|---|---|---|
2 | 158142c2 | bellard | |
3 | 158142c2 | bellard | This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic
|
4 | 158142c2 | bellard | Package, Release 2b.
|
5 | 158142c2 | bellard | |
6 | 158142c2 | bellard | Written by John R. Hauser. This work was made possible in part by the
|
7 | 158142c2 | bellard | International Computer Science Institute, located at Suite 600, 1947 Center
|
8 | 158142c2 | bellard | Street, Berkeley, California 94704. Funding was partially provided by the
|
9 | 158142c2 | bellard | National Science Foundation under grant MIP-9311980. The original version
|
10 | 158142c2 | bellard | of this code was written as part of a project to build a fixed-point vector
|
11 | 158142c2 | bellard | processor in collaboration with the University of California at Berkeley,
|
12 | 158142c2 | bellard | overseen by Profs. Nelson Morgan and John Wawrzynek. More information
|
13 | 158142c2 | bellard | is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
|
14 | 158142c2 | bellard | arithmetic/SoftFloat.html'.
|
15 | 158142c2 | bellard | |
16 | 158142c2 | bellard | THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has
|
17 | 158142c2 | bellard | been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
|
18 | 158142c2 | bellard | RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
|
19 | 158142c2 | bellard | AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
|
20 | 158142c2 | bellard | COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
|
21 | 158142c2 | bellard | EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
|
22 | 158142c2 | bellard | INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
|
23 | 158142c2 | bellard | OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
|
24 | 158142c2 | bellard | |
25 | 158142c2 | bellard | Derivative works are acceptable, even for commercial purposes, so long as
|
26 | 158142c2 | bellard | (1) the source code for the derivative work includes prominent notice that
|
27 | 158142c2 | bellard | the work is derivative, and (2) the source code includes prominent notice with
|
28 | 158142c2 | bellard | these four paragraphs for those parts of this code that are retained.
|
29 | 158142c2 | bellard | |
30 | 158142c2 | bellard | =============================================================================*/
|
31 | 158142c2 | bellard | |
32 | 158142c2 | bellard | #ifndef SOFTFLOAT_H
|
33 | 158142c2 | bellard | #define SOFTFLOAT_H
|
34 | 158142c2 | bellard | |
35 | 75b5a697 | Juan Quintela | #if defined(CONFIG_SOLARIS) && defined(CONFIG_NEEDS_LIBSUNMATH)
|
36 | 0475a5ca | ths | #include <sunmath.h> |
37 | 0475a5ca | ths | #endif
|
38 | 0475a5ca | ths | |
39 | 158142c2 | bellard | #include <inttypes.h> |
40 | 158142c2 | bellard | #include "config.h" |
41 | 158142c2 | bellard | |
42 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
43 | 158142c2 | bellard | | Each of the following `typedef's defines the most convenient type that holds
|
44 | 158142c2 | bellard | | integers of at least as many bits as specified. For example, `uint8' should
|
45 | 158142c2 | bellard | | be the most convenient type that can hold unsigned integers of as many as
|
46 | 158142c2 | bellard | | 8 bits. The `flag' type must be able to hold either a 0 or 1. For most
|
47 | 158142c2 | bellard | | implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
|
48 | 158142c2 | bellard | | to the same as `int'.
|
49 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
50 | 750afe93 | bellard | typedef uint8_t flag;
|
51 | 158142c2 | bellard | typedef uint8_t uint8;
|
52 | 158142c2 | bellard | typedef int8_t int8;
|
53 | b29fe3ed | malc | #ifndef _AIX
|
54 | 158142c2 | bellard | typedef int uint16; |
55 | 158142c2 | bellard | typedef int int16; |
56 | b29fe3ed | malc | #endif
|
57 | 158142c2 | bellard | typedef unsigned int uint32; |
58 | 158142c2 | bellard | typedef signed int int32; |
59 | 158142c2 | bellard | typedef uint64_t uint64;
|
60 | 158142c2 | bellard | typedef int64_t int64;
|
61 | 158142c2 | bellard | |
62 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
63 | 158142c2 | bellard | | Each of the following `typedef's defines a type that holds integers
|
64 | 158142c2 | bellard | | of _exactly_ the number of bits specified. For instance, for most
|
65 | 158142c2 | bellard | | implementation of C, `bits16' and `sbits16' should be `typedef'ed to
|
66 | 158142c2 | bellard | | `unsigned short int' and `signed short int' (or `short int'), respectively.
|
67 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
68 | 158142c2 | bellard | typedef uint8_t bits8;
|
69 | 158142c2 | bellard | typedef int8_t sbits8;
|
70 | 158142c2 | bellard | typedef uint16_t bits16;
|
71 | 158142c2 | bellard | typedef int16_t sbits16;
|
72 | 158142c2 | bellard | typedef uint32_t bits32;
|
73 | 158142c2 | bellard | typedef int32_t sbits32;
|
74 | 158142c2 | bellard | typedef uint64_t bits64;
|
75 | 158142c2 | bellard | typedef int64_t sbits64;
|
76 | 158142c2 | bellard | |
77 | 158142c2 | bellard | #define LIT64( a ) a##LL |
78 | 158142c2 | bellard | #define INLINE static inline |
79 | 158142c2 | bellard | |
80 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
81 | 158142c2 | bellard | | The macro `FLOATX80' must be defined to enable the extended double-precision
|
82 | 158142c2 | bellard | | floating-point format `floatx80'. If this macro is not defined, the
|
83 | 158142c2 | bellard | | `floatx80' type will not be defined, and none of the functions that either
|
84 | 158142c2 | bellard | | input or output the `floatx80' type will be defined. The same applies to
|
85 | 158142c2 | bellard | | the `FLOAT128' macro and the quadruple-precision format `float128'.
|
86 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
87 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
|
88 | 158142c2 | bellard | /* bit exact soft float support */
|
89 | 158142c2 | bellard | #define FLOATX80
|
90 | 158142c2 | bellard | #define FLOAT128
|
91 | 158142c2 | bellard | #else
|
92 | 158142c2 | bellard | /* native float support */
|
93 | 71e72a19 | Juan Quintela | #if (defined(__i386__) || defined(__x86_64__)) && !defined(CONFIG_BSD)
|
94 | 158142c2 | bellard | #define FLOATX80
|
95 | 158142c2 | bellard | #endif
|
96 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
97 | 158142c2 | bellard | |
98 | 158142c2 | bellard | #define STATUS_PARAM , float_status *status
|
99 | 158142c2 | bellard | #define STATUS(field) status->field
|
100 | 158142c2 | bellard | #define STATUS_VAR , status
|
101 | 158142c2 | bellard | |
102 | 1d6bda35 | bellard | /*----------------------------------------------------------------------------
|
103 | 1d6bda35 | bellard | | Software IEC/IEEE floating-point ordering relations
|
104 | 1d6bda35 | bellard | *----------------------------------------------------------------------------*/
|
105 | 1d6bda35 | bellard | enum {
|
106 | 1d6bda35 | bellard | float_relation_less = -1,
|
107 | 1d6bda35 | bellard | float_relation_equal = 0,
|
108 | 1d6bda35 | bellard | float_relation_greater = 1,
|
109 | 1d6bda35 | bellard | float_relation_unordered = 2
|
110 | 1d6bda35 | bellard | }; |
111 | 1d6bda35 | bellard | |
112 | 158142c2 | bellard | #ifdef CONFIG_SOFTFLOAT
|
113 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
114 | 158142c2 | bellard | | Software IEC/IEEE floating-point types.
|
115 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
116 | f090c9d4 | pbrook | /* Use structures for soft-float types. This prevents accidentally mixing
|
117 | f090c9d4 | pbrook | them with native int/float types. A sufficiently clever compiler and
|
118 | f090c9d4 | pbrook | sane ABI should be able to see though these structs. However
|
119 | f090c9d4 | pbrook | x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */
|
120 | f090c9d4 | pbrook | //#define USE_SOFTFLOAT_STRUCT_TYPES
|
121 | f090c9d4 | pbrook | #ifdef USE_SOFTFLOAT_STRUCT_TYPES
|
122 | f090c9d4 | pbrook | typedef struct { |
123 | f090c9d4 | pbrook | uint32_t v; |
124 | f090c9d4 | pbrook | } float32; |
125 | f090c9d4 | pbrook | /* The cast ensures an error if the wrong type is passed. */
|
126 | f090c9d4 | pbrook | #define float32_val(x) (((float32)(x)).v)
|
127 | f090c9d4 | pbrook | #define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; })
|
128 | f090c9d4 | pbrook | typedef struct { |
129 | f090c9d4 | pbrook | uint64_t v; |
130 | f090c9d4 | pbrook | } float64; |
131 | f090c9d4 | pbrook | #define float64_val(x) (((float64)(x)).v)
|
132 | f090c9d4 | pbrook | #define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; })
|
133 | f090c9d4 | pbrook | #else
|
134 | 158142c2 | bellard | typedef uint32_t float32;
|
135 | 158142c2 | bellard | typedef uint64_t float64;
|
136 | f090c9d4 | pbrook | #define float32_val(x) (x)
|
137 | f090c9d4 | pbrook | #define float64_val(x) (x)
|
138 | f090c9d4 | pbrook | #define make_float32(x) (x)
|
139 | f090c9d4 | pbrook | #define make_float64(x) (x)
|
140 | f090c9d4 | pbrook | #endif
|
141 | 158142c2 | bellard | #ifdef FLOATX80
|
142 | 158142c2 | bellard | typedef struct { |
143 | 158142c2 | bellard | uint64_t low; |
144 | 158142c2 | bellard | uint16_t high; |
145 | 158142c2 | bellard | } floatx80; |
146 | 158142c2 | bellard | #endif
|
147 | 158142c2 | bellard | #ifdef FLOAT128
|
148 | 158142c2 | bellard | typedef struct { |
149 | e2542fe2 | Juan Quintela | #ifdef HOST_WORDS_BIGENDIAN
|
150 | 158142c2 | bellard | uint64_t high, low; |
151 | 158142c2 | bellard | #else
|
152 | 158142c2 | bellard | uint64_t low, high; |
153 | 158142c2 | bellard | #endif
|
154 | 158142c2 | bellard | } float128; |
155 | 158142c2 | bellard | #endif
|
156 | 158142c2 | bellard | |
157 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
158 | 158142c2 | bellard | | Software IEC/IEEE floating-point underflow tininess-detection mode.
|
159 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
160 | 158142c2 | bellard | enum {
|
161 | 158142c2 | bellard | float_tininess_after_rounding = 0,
|
162 | 158142c2 | bellard | float_tininess_before_rounding = 1
|
163 | 158142c2 | bellard | }; |
164 | 158142c2 | bellard | |
165 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
166 | 158142c2 | bellard | | Software IEC/IEEE floating-point rounding mode.
|
167 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
168 | 158142c2 | bellard | enum {
|
169 | 158142c2 | bellard | float_round_nearest_even = 0,
|
170 | 158142c2 | bellard | float_round_down = 1,
|
171 | 158142c2 | bellard | float_round_up = 2,
|
172 | 158142c2 | bellard | float_round_to_zero = 3
|
173 | 158142c2 | bellard | }; |
174 | 158142c2 | bellard | |
175 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
176 | 158142c2 | bellard | | Software IEC/IEEE floating-point exception flags.
|
177 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
178 | 158142c2 | bellard | enum {
|
179 | 158142c2 | bellard | float_flag_invalid = 1,
|
180 | 158142c2 | bellard | float_flag_divbyzero = 4,
|
181 | 158142c2 | bellard | float_flag_overflow = 8,
|
182 | 158142c2 | bellard | float_flag_underflow = 16,
|
183 | 158142c2 | bellard | float_flag_inexact = 32
|
184 | 158142c2 | bellard | }; |
185 | 158142c2 | bellard | |
186 | 158142c2 | bellard | typedef struct float_status { |
187 | 158142c2 | bellard | signed char float_detect_tininess; |
188 | 158142c2 | bellard | signed char float_rounding_mode; |
189 | 158142c2 | bellard | signed char float_exception_flags; |
190 | 158142c2 | bellard | #ifdef FLOATX80
|
191 | 158142c2 | bellard | signed char floatx80_rounding_precision; |
192 | 158142c2 | bellard | #endif
|
193 | fe76d976 | pbrook | flag flush_to_zero; |
194 | 5c7908ed | pbrook | flag default_nan_mode; |
195 | 158142c2 | bellard | } float_status; |
196 | 158142c2 | bellard | |
197 | 158142c2 | bellard | void set_float_rounding_mode(int val STATUS_PARAM); |
198 | 1d6bda35 | bellard | void set_float_exception_flags(int val STATUS_PARAM); |
199 | fe76d976 | pbrook | INLINE void set_flush_to_zero(flag val STATUS_PARAM)
|
200 | fe76d976 | pbrook | { |
201 | fe76d976 | pbrook | STATUS(flush_to_zero) = val; |
202 | fe76d976 | pbrook | } |
203 | 5c7908ed | pbrook | INLINE void set_default_nan_mode(flag val STATUS_PARAM)
|
204 | 5c7908ed | pbrook | { |
205 | 5c7908ed | pbrook | STATUS(default_nan_mode) = val; |
206 | 5c7908ed | pbrook | } |
207 | 1d6bda35 | bellard | INLINE int get_float_exception_flags(float_status *status)
|
208 | 1d6bda35 | bellard | { |
209 | 1d6bda35 | bellard | return STATUS(float_exception_flags);
|
210 | 1d6bda35 | bellard | } |
211 | 158142c2 | bellard | #ifdef FLOATX80
|
212 | 158142c2 | bellard | void set_floatx80_rounding_precision(int val STATUS_PARAM); |
213 | 158142c2 | bellard | #endif
|
214 | 158142c2 | bellard | |
215 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
216 | 158142c2 | bellard | | Routine to raise any or all of the software IEC/IEEE floating-point
|
217 | 158142c2 | bellard | | exception flags.
|
218 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
219 | ec530c81 | bellard | void float_raise( int8 flags STATUS_PARAM);
|
220 | 158142c2 | bellard | |
221 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
222 | 158142c2 | bellard | | Software IEC/IEEE integer-to-floating-point conversion routines.
|
223 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
224 | 158142c2 | bellard | float32 int32_to_float32( int STATUS_PARAM );
|
225 | 158142c2 | bellard | float64 int32_to_float64( int STATUS_PARAM );
|
226 | 1d6bda35 | bellard | float32 uint32_to_float32( unsigned int STATUS_PARAM ); |
227 | 1d6bda35 | bellard | float64 uint32_to_float64( unsigned int STATUS_PARAM ); |
228 | 158142c2 | bellard | #ifdef FLOATX80
|
229 | 158142c2 | bellard | floatx80 int32_to_floatx80( int STATUS_PARAM );
|
230 | 158142c2 | bellard | #endif
|
231 | 158142c2 | bellard | #ifdef FLOAT128
|
232 | 158142c2 | bellard | float128 int32_to_float128( int STATUS_PARAM );
|
233 | 158142c2 | bellard | #endif
|
234 | 158142c2 | bellard | float32 int64_to_float32( int64_t STATUS_PARAM ); |
235 | 75d62a58 | j_mayer | float32 uint64_to_float32( uint64_t STATUS_PARAM ); |
236 | 158142c2 | bellard | float64 int64_to_float64( int64_t STATUS_PARAM ); |
237 | 75d62a58 | j_mayer | float64 uint64_to_float64( uint64_t STATUS_PARAM ); |
238 | 158142c2 | bellard | #ifdef FLOATX80
|
239 | 158142c2 | bellard | floatx80 int64_to_floatx80( int64_t STATUS_PARAM ); |
240 | 158142c2 | bellard | #endif
|
241 | 158142c2 | bellard | #ifdef FLOAT128
|
242 | 158142c2 | bellard | float128 int64_to_float128( int64_t STATUS_PARAM ); |
243 | 158142c2 | bellard | #endif
|
244 | 158142c2 | bellard | |
245 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
246 | 158142c2 | bellard | | Software IEC/IEEE single-precision conversion routines.
|
247 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
248 | 158142c2 | bellard | int float32_to_int32( float32 STATUS_PARAM );
|
249 | 158142c2 | bellard | int float32_to_int32_round_to_zero( float32 STATUS_PARAM );
|
250 | 1d6bda35 | bellard | unsigned int float32_to_uint32( float32 STATUS_PARAM ); |
251 | 1d6bda35 | bellard | unsigned int float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); |
252 | 158142c2 | bellard | int64_t float32_to_int64( float32 STATUS_PARAM ); |
253 | 158142c2 | bellard | int64_t float32_to_int64_round_to_zero( float32 STATUS_PARAM ); |
254 | 158142c2 | bellard | float64 float32_to_float64( float32 STATUS_PARAM ); |
255 | 158142c2 | bellard | #ifdef FLOATX80
|
256 | 158142c2 | bellard | floatx80 float32_to_floatx80( float32 STATUS_PARAM ); |
257 | 158142c2 | bellard | #endif
|
258 | 158142c2 | bellard | #ifdef FLOAT128
|
259 | 158142c2 | bellard | float128 float32_to_float128( float32 STATUS_PARAM ); |
260 | 158142c2 | bellard | #endif
|
261 | 158142c2 | bellard | |
262 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
263 | 158142c2 | bellard | | Software IEC/IEEE single-precision operations.
|
264 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
265 | 158142c2 | bellard | float32 float32_round_to_int( float32 STATUS_PARAM ); |
266 | 158142c2 | bellard | float32 float32_add( float32, float32 STATUS_PARAM ); |
267 | 158142c2 | bellard | float32 float32_sub( float32, float32 STATUS_PARAM ); |
268 | 158142c2 | bellard | float32 float32_mul( float32, float32 STATUS_PARAM ); |
269 | 158142c2 | bellard | float32 float32_div( float32, float32 STATUS_PARAM ); |
270 | 158142c2 | bellard | float32 float32_rem( float32, float32 STATUS_PARAM ); |
271 | 158142c2 | bellard | float32 float32_sqrt( float32 STATUS_PARAM ); |
272 | 374dfc33 | aurel32 | float32 float32_log2( float32 STATUS_PARAM ); |
273 | 750afe93 | bellard | int float32_eq( float32, float32 STATUS_PARAM );
|
274 | 750afe93 | bellard | int float32_le( float32, float32 STATUS_PARAM );
|
275 | 750afe93 | bellard | int float32_lt( float32, float32 STATUS_PARAM );
|
276 | 750afe93 | bellard | int float32_eq_signaling( float32, float32 STATUS_PARAM );
|
277 | 750afe93 | bellard | int float32_le_quiet( float32, float32 STATUS_PARAM );
|
278 | 750afe93 | bellard | int float32_lt_quiet( float32, float32 STATUS_PARAM );
|
279 | 750afe93 | bellard | int float32_compare( float32, float32 STATUS_PARAM );
|
280 | 750afe93 | bellard | int float32_compare_quiet( float32, float32 STATUS_PARAM );
|
281 | 924b2c07 | ths | int float32_is_nan( float32 );
|
282 | 750afe93 | bellard | int float32_is_signaling_nan( float32 );
|
283 | 9ee6e8bb | pbrook | float32 float32_scalbn( float32, int STATUS_PARAM );
|
284 | 158142c2 | bellard | |
285 | 1d6bda35 | bellard | INLINE float32 float32_abs(float32 a) |
286 | 1d6bda35 | bellard | { |
287 | f090c9d4 | pbrook | return make_float32(float32_val(a) & 0x7fffffff); |
288 | 1d6bda35 | bellard | } |
289 | 1d6bda35 | bellard | |
290 | 1d6bda35 | bellard | INLINE float32 float32_chs(float32 a) |
291 | 1d6bda35 | bellard | { |
292 | f090c9d4 | pbrook | return make_float32(float32_val(a) ^ 0x80000000); |
293 | 1d6bda35 | bellard | } |
294 | 1d6bda35 | bellard | |
295 | c52ab6f5 | aurel32 | INLINE int float32_is_infinity(float32 a)
|
296 | c52ab6f5 | aurel32 | { |
297 | dadd71a7 | aurel32 | return (float32_val(a) & 0x7fffffff) == 0x7f800000; |
298 | c52ab6f5 | aurel32 | } |
299 | c52ab6f5 | aurel32 | |
300 | c52ab6f5 | aurel32 | INLINE int float32_is_neg(float32 a)
|
301 | c52ab6f5 | aurel32 | { |
302 | c52ab6f5 | aurel32 | return float32_val(a) >> 31; |
303 | c52ab6f5 | aurel32 | } |
304 | c52ab6f5 | aurel32 | |
305 | c52ab6f5 | aurel32 | INLINE int float32_is_zero(float32 a)
|
306 | c52ab6f5 | aurel32 | { |
307 | c52ab6f5 | aurel32 | return (float32_val(a) & 0x7fffffff) == 0; |
308 | c52ab6f5 | aurel32 | } |
309 | c52ab6f5 | aurel32 | |
310 | f090c9d4 | pbrook | #define float32_zero make_float32(0) |
311 | 196cfc89 | aurel32 | #define float32_one make_float32(0x3f800000) |
312 | f090c9d4 | pbrook | |
313 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
314 | 158142c2 | bellard | | Software IEC/IEEE double-precision conversion routines.
|
315 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
316 | 158142c2 | bellard | int float64_to_int32( float64 STATUS_PARAM );
|
317 | 158142c2 | bellard | int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
|
318 | 1d6bda35 | bellard | unsigned int float64_to_uint32( float64 STATUS_PARAM ); |
319 | 1d6bda35 | bellard | unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); |
320 | 158142c2 | bellard | int64_t float64_to_int64( float64 STATUS_PARAM ); |
321 | 158142c2 | bellard | int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM ); |
322 | 75d62a58 | j_mayer | uint64_t float64_to_uint64 (float64 a STATUS_PARAM); |
323 | 75d62a58 | j_mayer | uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM); |
324 | 158142c2 | bellard | float32 float64_to_float32( float64 STATUS_PARAM ); |
325 | 158142c2 | bellard | #ifdef FLOATX80
|
326 | 158142c2 | bellard | floatx80 float64_to_floatx80( float64 STATUS_PARAM ); |
327 | 158142c2 | bellard | #endif
|
328 | 158142c2 | bellard | #ifdef FLOAT128
|
329 | 158142c2 | bellard | float128 float64_to_float128( float64 STATUS_PARAM ); |
330 | 158142c2 | bellard | #endif
|
331 | 158142c2 | bellard | |
332 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
333 | 158142c2 | bellard | | Software IEC/IEEE double-precision operations.
|
334 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
335 | 158142c2 | bellard | float64 float64_round_to_int( float64 STATUS_PARAM ); |
336 | e6e5906b | pbrook | float64 float64_trunc_to_int( float64 STATUS_PARAM ); |
337 | 158142c2 | bellard | float64 float64_add( float64, float64 STATUS_PARAM ); |
338 | 158142c2 | bellard | float64 float64_sub( float64, float64 STATUS_PARAM ); |
339 | 158142c2 | bellard | float64 float64_mul( float64, float64 STATUS_PARAM ); |
340 | 158142c2 | bellard | float64 float64_div( float64, float64 STATUS_PARAM ); |
341 | 158142c2 | bellard | float64 float64_rem( float64, float64 STATUS_PARAM ); |
342 | 158142c2 | bellard | float64 float64_sqrt( float64 STATUS_PARAM ); |
343 | 374dfc33 | aurel32 | float64 float64_log2( float64 STATUS_PARAM ); |
344 | 750afe93 | bellard | int float64_eq( float64, float64 STATUS_PARAM );
|
345 | 750afe93 | bellard | int float64_le( float64, float64 STATUS_PARAM );
|
346 | 750afe93 | bellard | int float64_lt( float64, float64 STATUS_PARAM );
|
347 | 750afe93 | bellard | int float64_eq_signaling( float64, float64 STATUS_PARAM );
|
348 | 750afe93 | bellard | int float64_le_quiet( float64, float64 STATUS_PARAM );
|
349 | 750afe93 | bellard | int float64_lt_quiet( float64, float64 STATUS_PARAM );
|
350 | 750afe93 | bellard | int float64_compare( float64, float64 STATUS_PARAM );
|
351 | 750afe93 | bellard | int float64_compare_quiet( float64, float64 STATUS_PARAM );
|
352 | 924b2c07 | ths | int float64_is_nan( float64 a );
|
353 | 750afe93 | bellard | int float64_is_signaling_nan( float64 );
|
354 | 9ee6e8bb | pbrook | float64 float64_scalbn( float64, int STATUS_PARAM );
|
355 | 158142c2 | bellard | |
356 | 1d6bda35 | bellard | INLINE float64 float64_abs(float64 a) |
357 | 1d6bda35 | bellard | { |
358 | f090c9d4 | pbrook | return make_float64(float64_val(a) & 0x7fffffffffffffffLL); |
359 | 1d6bda35 | bellard | } |
360 | 1d6bda35 | bellard | |
361 | 1d6bda35 | bellard | INLINE float64 float64_chs(float64 a) |
362 | 1d6bda35 | bellard | { |
363 | f090c9d4 | pbrook | return make_float64(float64_val(a) ^ 0x8000000000000000LL); |
364 | 1d6bda35 | bellard | } |
365 | 1d6bda35 | bellard | |
366 | c52ab6f5 | aurel32 | INLINE int float64_is_infinity(float64 a)
|
367 | c52ab6f5 | aurel32 | { |
368 | c52ab6f5 | aurel32 | return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; |
369 | c52ab6f5 | aurel32 | } |
370 | c52ab6f5 | aurel32 | |
371 | c52ab6f5 | aurel32 | INLINE int float64_is_neg(float64 a)
|
372 | c52ab6f5 | aurel32 | { |
373 | c52ab6f5 | aurel32 | return float64_val(a) >> 63; |
374 | c52ab6f5 | aurel32 | } |
375 | c52ab6f5 | aurel32 | |
376 | c52ab6f5 | aurel32 | INLINE int float64_is_zero(float64 a)
|
377 | c52ab6f5 | aurel32 | { |
378 | c52ab6f5 | aurel32 | return (float64_val(a) & 0x7fffffffffffffffLL) == 0; |
379 | c52ab6f5 | aurel32 | } |
380 | c52ab6f5 | aurel32 | |
381 | f090c9d4 | pbrook | #define float64_zero make_float64(0) |
382 | 196cfc89 | aurel32 | #define float64_one make_float64(0x3ff0000000000000LL) |
383 | f090c9d4 | pbrook | |
384 | 158142c2 | bellard | #ifdef FLOATX80
|
385 | 158142c2 | bellard | |
386 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
387 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision conversion routines.
|
388 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
389 | 158142c2 | bellard | int floatx80_to_int32( floatx80 STATUS_PARAM );
|
390 | 158142c2 | bellard | int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );
|
391 | 158142c2 | bellard | int64_t floatx80_to_int64( floatx80 STATUS_PARAM ); |
392 | 158142c2 | bellard | int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); |
393 | 158142c2 | bellard | float32 floatx80_to_float32( floatx80 STATUS_PARAM ); |
394 | 158142c2 | bellard | float64 floatx80_to_float64( floatx80 STATUS_PARAM ); |
395 | 158142c2 | bellard | #ifdef FLOAT128
|
396 | 158142c2 | bellard | float128 floatx80_to_float128( floatx80 STATUS_PARAM ); |
397 | 158142c2 | bellard | #endif
|
398 | 158142c2 | bellard | |
399 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
400 | 158142c2 | bellard | | Software IEC/IEEE extended double-precision operations.
|
401 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
402 | 158142c2 | bellard | floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); |
403 | 158142c2 | bellard | floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); |
404 | 158142c2 | bellard | floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); |
405 | 158142c2 | bellard | floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); |
406 | 158142c2 | bellard | floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); |
407 | 158142c2 | bellard | floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); |
408 | 158142c2 | bellard | floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); |
409 | 750afe93 | bellard | int floatx80_eq( floatx80, floatx80 STATUS_PARAM );
|
410 | 750afe93 | bellard | int floatx80_le( floatx80, floatx80 STATUS_PARAM );
|
411 | 750afe93 | bellard | int floatx80_lt( floatx80, floatx80 STATUS_PARAM );
|
412 | 750afe93 | bellard | int floatx80_eq_signaling( floatx80, floatx80 STATUS_PARAM );
|
413 | 750afe93 | bellard | int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
|
414 | 750afe93 | bellard | int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
|
415 | 924b2c07 | ths | int floatx80_is_nan( floatx80 );
|
416 | 750afe93 | bellard | int floatx80_is_signaling_nan( floatx80 );
|
417 | 9ee6e8bb | pbrook | floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM );
|
418 | 158142c2 | bellard | |
419 | 1d6bda35 | bellard | INLINE floatx80 floatx80_abs(floatx80 a) |
420 | 1d6bda35 | bellard | { |
421 | 1d6bda35 | bellard | a.high &= 0x7fff;
|
422 | 1d6bda35 | bellard | return a;
|
423 | 1d6bda35 | bellard | } |
424 | 1d6bda35 | bellard | |
425 | 1d6bda35 | bellard | INLINE floatx80 floatx80_chs(floatx80 a) |
426 | 1d6bda35 | bellard | { |
427 | 1d6bda35 | bellard | a.high ^= 0x8000;
|
428 | 1d6bda35 | bellard | return a;
|
429 | 1d6bda35 | bellard | } |
430 | 1d6bda35 | bellard | |
431 | c52ab6f5 | aurel32 | INLINE int floatx80_is_infinity(floatx80 a)
|
432 | c52ab6f5 | aurel32 | { |
433 | c52ab6f5 | aurel32 | return (a.high & 0x7fff) == 0x7fff && a.low == 0; |
434 | c52ab6f5 | aurel32 | } |
435 | c52ab6f5 | aurel32 | |
436 | c52ab6f5 | aurel32 | INLINE int floatx80_is_neg(floatx80 a)
|
437 | c52ab6f5 | aurel32 | { |
438 | c52ab6f5 | aurel32 | return a.high >> 15; |
439 | c52ab6f5 | aurel32 | } |
440 | c52ab6f5 | aurel32 | |
441 | c52ab6f5 | aurel32 | INLINE int floatx80_is_zero(floatx80 a)
|
442 | c52ab6f5 | aurel32 | { |
443 | c52ab6f5 | aurel32 | return (a.high & 0x7fff) == 0 && a.low == 0; |
444 | c52ab6f5 | aurel32 | } |
445 | c52ab6f5 | aurel32 | |
446 | 158142c2 | bellard | #endif
|
447 | 158142c2 | bellard | |
448 | 158142c2 | bellard | #ifdef FLOAT128
|
449 | 158142c2 | bellard | |
450 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
451 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision conversion routines.
|
452 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
453 | 158142c2 | bellard | int float128_to_int32( float128 STATUS_PARAM );
|
454 | 158142c2 | bellard | int float128_to_int32_round_to_zero( float128 STATUS_PARAM );
|
455 | 158142c2 | bellard | int64_t float128_to_int64( float128 STATUS_PARAM ); |
456 | 158142c2 | bellard | int64_t float128_to_int64_round_to_zero( float128 STATUS_PARAM ); |
457 | 158142c2 | bellard | float32 float128_to_float32( float128 STATUS_PARAM ); |
458 | 158142c2 | bellard | float64 float128_to_float64( float128 STATUS_PARAM ); |
459 | 158142c2 | bellard | #ifdef FLOATX80
|
460 | 158142c2 | bellard | floatx80 float128_to_floatx80( float128 STATUS_PARAM ); |
461 | 158142c2 | bellard | #endif
|
462 | 158142c2 | bellard | |
463 | 158142c2 | bellard | /*----------------------------------------------------------------------------
|
464 | 158142c2 | bellard | | Software IEC/IEEE quadruple-precision operations.
|
465 | 158142c2 | bellard | *----------------------------------------------------------------------------*/
|
466 | 158142c2 | bellard | float128 float128_round_to_int( float128 STATUS_PARAM ); |
467 | 158142c2 | bellard | float128 float128_add( float128, float128 STATUS_PARAM ); |
468 | 158142c2 | bellard | float128 float128_sub( float128, float128 STATUS_PARAM ); |
469 | 158142c2 | bellard | float128 float128_mul( float128, float128 STATUS_PARAM ); |
470 | 158142c2 | bellard | float128 float128_div( float128, float128 STATUS_PARAM ); |
471 | 158142c2 | bellard | float128 float128_rem( float128, float128 STATUS_PARAM ); |
472 | 158142c2 | bellard | float128 float128_sqrt( float128 STATUS_PARAM ); |
473 | 750afe93 | bellard | int float128_eq( float128, float128 STATUS_PARAM );
|
474 | 750afe93 | bellard | int float128_le( float128, float128 STATUS_PARAM );
|
475 | 750afe93 | bellard | int float128_lt( float128, float128 STATUS_PARAM );
|
476 | 750afe93 | bellard | int float128_eq_signaling( float128, float128 STATUS_PARAM );
|
477 | 750afe93 | bellard | int float128_le_quiet( float128, float128 STATUS_PARAM );
|
478 | 750afe93 | bellard | int float128_lt_quiet( float128, float128 STATUS_PARAM );
|
479 | 1f587329 | blueswir1 | int float128_compare( float128, float128 STATUS_PARAM );
|
480 | 1f587329 | blueswir1 | int float128_compare_quiet( float128, float128 STATUS_PARAM );
|
481 | 924b2c07 | ths | int float128_is_nan( float128 );
|
482 | 750afe93 | bellard | int float128_is_signaling_nan( float128 );
|
483 | 9ee6e8bb | pbrook | float128 float128_scalbn( float128, int STATUS_PARAM );
|
484 | 158142c2 | bellard | |
485 | 1d6bda35 | bellard | INLINE float128 float128_abs(float128 a) |
486 | 1d6bda35 | bellard | { |
487 | 1d6bda35 | bellard | a.high &= 0x7fffffffffffffffLL;
|
488 | 1d6bda35 | bellard | return a;
|
489 | 1d6bda35 | bellard | } |
490 | 1d6bda35 | bellard | |
491 | 1d6bda35 | bellard | INLINE float128 float128_chs(float128 a) |
492 | 1d6bda35 | bellard | { |
493 | 1d6bda35 | bellard | a.high ^= 0x8000000000000000LL;
|
494 | 1d6bda35 | bellard | return a;
|
495 | 1d6bda35 | bellard | } |
496 | 1d6bda35 | bellard | |
497 | c52ab6f5 | aurel32 | INLINE int float128_is_infinity(float128 a)
|
498 | c52ab6f5 | aurel32 | { |
499 | c52ab6f5 | aurel32 | return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; |
500 | c52ab6f5 | aurel32 | } |
501 | c52ab6f5 | aurel32 | |
502 | c52ab6f5 | aurel32 | INLINE int float128_is_neg(float128 a)
|
503 | c52ab6f5 | aurel32 | { |
504 | c52ab6f5 | aurel32 | return a.high >> 63; |
505 | c52ab6f5 | aurel32 | } |
506 | c52ab6f5 | aurel32 | |
507 | c52ab6f5 | aurel32 | INLINE int float128_is_zero(float128 a)
|
508 | c52ab6f5 | aurel32 | { |
509 | c52ab6f5 | aurel32 | return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; |
510 | c52ab6f5 | aurel32 | } |
511 | c52ab6f5 | aurel32 | |
512 | 158142c2 | bellard | #endif
|
513 | 158142c2 | bellard | |
514 | 158142c2 | bellard | #else /* CONFIG_SOFTFLOAT */ |
515 | 158142c2 | bellard | |
516 | 158142c2 | bellard | #include "softfloat-native.h" |
517 | 158142c2 | bellard | |
518 | 158142c2 | bellard | #endif /* !CONFIG_SOFTFLOAT */ |
519 | 158142c2 | bellard | |
520 | 158142c2 | bellard | #endif /* !SOFTFLOAT_H */ |