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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc2/] [newlib/] [libc/] [include/] [machine/] [ieeefp.h] - Blame information for rev 207

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1 207 jeremybenn 
#ifndef __IEEE_BIG_ENDIAN
2 
#ifndef __IEEE_LITTLE_ENDIAN
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4 
/* This file can define macros to choose variations of the IEEE float
5 
   format:
6 
 
7 
   _FLT_LARGEST_EXPONENT_IS_NORMAL
8 
 
9 
        Defined if the float format uses the largest exponent for finite
10 
        numbers rather than NaN and infinity representations.  Such a
11 
        format cannot represent NaNs or infinities at all, but it's FLT_MAX
12 
        is twice the IEEE value.
13 
 
14 
   _FLT_NO_DENORMALS
15 
 
16 
        Defined if the float format does not support IEEE denormals.  Every
17 
        float with a zero exponent is taken to be a zero representation.
18 
 
19 
   ??? At the moment, there are no equivalent macros above for doubles and
20 
   the macros are not fully supported by --enable-newlib-hw-fp.
21 
 
22 
   __IEEE_BIG_ENDIAN
23 
 
24 
        Defined if the float format is big endian.  This is mutually exclusive
25 
        with __IEEE_LITTLE_ENDIAN.
26 
 
27 
   __IEEE_LITTLE_ENDIAN
28 
 
29 
        Defined if the float format is little endian.  This is mutually exclusive
30 
        with __IEEE_BIG_ENDIAN.
31 
 
32 
   Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a
33 
   platform or error will occur.
34 
 
35 
   __IEEE_BYTES_LITTLE_ENDIAN
36 
 
37 
        This flag is used in conjunction with __IEEE_BIG_ENDIAN to describe a situation
38 
        whereby multiple words of an IEEE floating point are in big endian order, but the
39 
        words themselves are little endian with respect to the bytes.
40 
 
41 
   _DOUBLE_IS_32BITS
42 
 
43 
        This is used on platforms that support double by using the 32-bit IEEE
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        float type.
45 
 
46 
   _FLOAT_ARG
47 
 
48 
        This represents what type a float arg is passed as.  It is used when the type is
49 
        not promoted to double.
50 
 
51 
*/
52 
 
53 
#if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__)
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/* ARM traditionally used big-endian words; and within those words the
55 
   byte ordering was big or little endian depending upon the target.
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   Modern floating-point formats are naturally ordered; in this case
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   __VFP_FP__ will be defined, even if soft-float.  */
58 
#ifdef __VFP_FP__
59 
# ifdef __ARMEL__
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#  define __IEEE_LITTLE_ENDIAN
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# else
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#  define __IEEE_BIG_ENDIAN
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# endif
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#else
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# ifdef __ARMEL__
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#  define __IEEE_LITTLE_ENDIAN
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# else
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#  define __IEEE_BIG_ENDIAN
69 
# endif
70 
# ifdef __ARMWEL__
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#  define __IEEE_BYTES_LITTLE_ENDIAN
72 
# endif
73 
#endif
74 
#endif
75 
 
76 
#ifdef __hppa__
77 
#define __IEEE_BIG_ENDIAN
78 
#endif
79 
 
80 
#ifdef __SPU__
81 
#define __IEEE_BIG_ENDIAN
82 
 
83 
#define isfinite(y) \
84 
          (__extension__ ({__typeof__(y) __y = (y); \
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                           (sizeof (__y) == sizeof (float))  ? (1) : \
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                           fpclassify(__y) != FP_INFINITE && fpclassify(__y) != FP_NAN;}))
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#define isinf(__x) ((sizeof (__x) == sizeof (float))  ?  (0) : __isinfd(__x))
88 
#define isnan(__x) ((sizeof (__x) == sizeof (float))  ?  (0) : __isnand(__x))
89 
 
90 
/*
91 
 * Macros for use in ieeefp.h. We can't just define the real ones here
92 
 * (like those above) as we have name space issues when this is *not*
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 * included via generic the ieeefp.h.
94 
 */
95 
#define __ieeefp_isnanf(x)      0
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#define __ieeefp_isinff(x)      0
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#define __ieeefp_finitef(x)     1
98 
#endif
99 
 
100 
#ifdef __sparc__
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#ifdef __LITTLE_ENDIAN_DATA__
102 
#define __IEEE_LITTLE_ENDIAN
103 
#else
104 
#define __IEEE_BIG_ENDIAN
105 
#endif
106 
#endif
107 
 
108 
#if defined(__m68k__) || defined(__mc68000__)
109 
#define __IEEE_BIG_ENDIAN
110 
#endif
111 
 
112 
#if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__)
113 
#define __IEEE_BIG_ENDIAN
114 
#ifdef __HAVE_SHORT_DOUBLE__
115 
# define _DOUBLE_IS_32BITS
116 
#endif
117 
#endif
118 
 
119 
#if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__) || defined (__H8500__) || defined (__H8300SX__)
120 
#define __IEEE_BIG_ENDIAN
121 
#define _FLOAT_ARG float
122 
#define _DOUBLE_IS_32BITS
123 
#endif
124 
 
125 
#if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__)
126 
#define __IEEE_LITTLE_ENDIAN
127 
#define _FLOAT_ARG float
128 
#define _DOUBLE_IS_32BITS
129 
#endif
130 
 
131 
 
132 
#ifdef __sh__
133 
#ifdef __LITTLE_ENDIAN__
134 
#define __IEEE_LITTLE_ENDIAN
135 
#else
136 
#define __IEEE_BIG_ENDIAN
137 
#endif
138 
#if defined(__SH2E__) || defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A_SINGLE_ONLY__)
139 
#define _DOUBLE_IS_32BITS
140 
#endif
141 
#endif
142 
 
143 
#ifdef _AM29K
144 
#define __IEEE_BIG_ENDIAN
145 
#endif
146 
 
147 
#ifdef _WIN32
148 
#define __IEEE_LITTLE_ENDIAN
149 
#endif
150 
 
151 
#ifdef __i386__
152 
#define __IEEE_LITTLE_ENDIAN
153 
#endif
154 
 
155 
#ifdef __i960__
156 
#define __IEEE_LITTLE_ENDIAN
157 
#endif
158 
 
159 
#ifdef __lm32__
160 
#define __IEEE_BIG_ENDIAN
161 
#endif
162 
 
163 
#ifdef __M32R__
164 
#define __IEEE_BIG_ENDIAN
165 
#endif
166 
 
167 
#if defined(_C4x) || defined(_C3x)
168 
#define __IEEE_BIG_ENDIAN
169 
#define _DOUBLE_IS_32BITS
170 
#endif
171 
 
172 
#ifdef __TIC80__
173 
#define __IEEE_LITTLE_ENDIAN
174 
#endif
175 
 
176 
#ifdef __MIPSEL__
177 
#define __IEEE_LITTLE_ENDIAN
178 
#endif
179 
#ifdef __MIPSEB__
180 
#define __IEEE_BIG_ENDIAN
181 
#endif
182 
 
183 
#ifdef __MMIX__
184 
#define __IEEE_BIG_ENDIAN
185 
#endif
186 
 
187 
#ifdef __D30V__
188 
#define __IEEE_BIG_ENDIAN
189 
#endif
190 
 
191 
/* necv70 was __IEEE_LITTLE_ENDIAN. */
192 
 
193 
#ifdef __W65__
194 
#define __IEEE_LITTLE_ENDIAN
195 
#define _DOUBLE_IS_32BITS
196 
#endif
197 
 
198 
#if defined(__Z8001__) || defined(__Z8002__)
199 
#define __IEEE_BIG_ENDIAN
200 
#endif
201 
 
202 
#ifdef __m88k__
203 
#define __IEEE_BIG_ENDIAN
204 
#endif
205 
 
206 
#ifdef __mn10300__
207 
#define __IEEE_LITTLE_ENDIAN
208 
#endif
209 
 
210 
#ifdef __mn10200__
211 
#define __IEEE_LITTLE_ENDIAN
212 
#define _DOUBLE_IS_32BITS
213 
#endif
214 
 
215 
#ifdef __v800
216 
#define __IEEE_LITTLE_ENDIAN
217 
#endif
218 
 
219 
#ifdef __v850
220 
#define __IEEE_LITTLE_ENDIAN
221 
#endif
222 
 
223 
#ifdef __D10V__
224 
#define __IEEE_BIG_ENDIAN
225 
#if __DOUBLE__ == 32
226 
#define _DOUBLE_IS_32BITS
227 
#endif
228 
#endif
229 
 
230 
#ifdef __PPC__
231 
#if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) || (defined(_AIX) && _AIX)
232 
#define __IEEE_BIG_ENDIAN
233 
#else
234 
#if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) || (defined(__sun__) && __sun__) || (defined(_WIN32) && _WIN32)
235 
#define __IEEE_LITTLE_ENDIAN
236 
#endif
237 
#endif
238 
#endif
239 
 
240 
#ifdef __xstormy16__
241 
#define __IEEE_LITTLE_ENDIAN
242 
#endif
243 
 
244 
#ifdef __arc__
245 
#ifdef __big_endian__
246 
#define __IEEE_BIG_ENDIAN
247 
#else
248 
#define __IEEE_LITTLE_ENDIAN
249 
#endif
250 
#endif
251 
 
252 
#ifdef __CRX__
253 
#define __IEEE_LITTLE_ENDIAN
254 
#endif
255 
 
256 
#ifdef __fr30__
257 
#define __IEEE_BIG_ENDIAN
258 
#endif
259 
 
260 
#ifdef __mcore__
261 
#define __IEEE_BIG_ENDIAN
262 
#endif
263 
 
264 
#ifdef __mt__
265 
#define __IEEE_BIG_ENDIAN
266 
#endif
267 
 
268 
#ifdef __frv__
269 
#define __IEEE_BIG_ENDIAN
270 
#endif
271 
 
272 
#ifdef __moxie__
273 
#define __IEEE_BIG_ENDIAN
274 
#endif
275 
 
276 
#ifdef __ia64__
277 
#ifdef __BIG_ENDIAN__
278 
#define __IEEE_BIG_ENDIAN
279 
#else
280 
#define __IEEE_LITTLE_ENDIAN
281 
#endif
282 
#endif
283 
 
284 
#ifdef __AVR__
285 
#define __IEEE_LITTLE_ENDIAN
286 
#define _DOUBLE_IS_32BITS
287 
#endif
288 
 
289 
#if defined(__or32__) || defined(__or1k__) || defined(__or16__) || defined(__OR32__) || defined(__OR1K__)
290 
#define __IEEE_BIG_ENDIAN
291 
#endif
292 
 
293 
#ifdef __IP2K__
294 
#define __IEEE_BIG_ENDIAN
295 
#define __SMALL_BITFIELDS
296 
#define _DOUBLE_IS_32BITS
297 
#endif
298 
 
299 
#ifdef __iq2000__
300 
#define __IEEE_BIG_ENDIAN
301 
#endif
302 
 
303 
#ifdef __MAVERICK__
304 
#ifdef __ARMEL__
305 
#  define __IEEE_LITTLE_ENDIAN
306 
#else  /* must be __ARMEB__ */
307 
#  define __IEEE_BIG_ENDIAN
308 
#endif /* __ARMEL__ */
309 
#endif /* __MAVERICK__ */
310 
 
311 
#ifdef __m32c__
312 
#define __IEEE_LITTLE_ENDIAN
313 
#define __SMALL_BITFIELDS
314 
#endif
315 
 
316 
#ifdef __CRIS__
317 
#define __IEEE_LITTLE_ENDIAN
318 
#endif
319 
 
320 
#ifdef __BFIN__
321 
#define __IEEE_LITTLE_ENDIAN
322 
#endif
323 
 
324 
#ifdef __x86_64__
325 
#define __IEEE_LITTLE_ENDIAN
326 
#endif
327 
 
328 
#ifdef __mep__
329 
#ifdef __LITTLE_ENDIAN__
330 
#define __IEEE_LITTLE_ENDIAN
331 
#else
332 
#define __IEEE_BIG_ENDIAN
333 
#endif
334 
#endif
335 
 
336 
#ifdef __MICROBLAZE__
337 
#define __IEEE_BIG_ENDIAN
338 
#endif
339 
 
340 
#ifdef __RX__
341 
 
342 
#ifdef __RX_BIG_ENDIAN__
343 
#define __IEEE_BIG_ENDIAN
344 
#else
345 
#define __IEEE_LITTLE_ENDIAN
346 
#endif
347 
 
348 
#ifndef __RX_64BIT_DOUBLES__
349 
#define _DOUBLE_IS_32BITS
350 
#endif
351 
 
352 
#ifdef __RX_16BIT_INTS__
353 
#define __SMALL_BITFIELDS
354 
#endif
355 
 
356 
#endif
357 
 
358 
#ifndef __IEEE_BIG_ENDIAN
359 
#ifndef __IEEE_LITTLE_ENDIAN
360 
#error Endianess not declared!!
361 
#endif /* not __IEEE_LITTLE_ENDIAN */
362 
#endif /* not __IEEE_BIG_ENDIAN */
363 
 
364 
#endif /* not __IEEE_LITTLE_ENDIAN */
365 
#endif /* not __IEEE_BIG_ENDIAN */
366 
 

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