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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [include/] [machine/] [ieeefp.h] - Blame information for rev 326

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1 148 jeremybenn 
#ifndef __IEEE_BIG_ENDIAN
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#ifndef __IEEE_LITTLE_ENDIAN
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/* This file can define macros to choose variations of the IEEE float
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   format:
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   _FLT_LARGEST_EXPONENT_IS_NORMAL
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        Defined if the float format uses the largest exponent for finite
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        numbers rather than NaN and infinity representations.  Such a
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        format cannot represent NaNs or infinities at all, but it's FLT_MAX
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        is twice the IEEE value.
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   _FLT_NO_DENORMALS
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        Defined if the float format does not support IEEE denormals.  Every
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        float with a zero exponent is taken to be a zero representation.
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   ??? At the moment, there are no equivalent macros above for doubles and
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   the macros are not fully supported by --enable-newlib-hw-fp.
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   __IEEE_BIG_ENDIAN
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        Defined if the float format is big endian.  This is mutually exclusive
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        with __IEEE_LITTLE_ENDIAN.
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   __IEEE_LITTLE_ENDIAN
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        Defined if the float format is little endian.  This is mutually exclusive
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        with __IEEE_BIG_ENDIAN.
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32 
   Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a
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   platform or error will occur.
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   __IEEE_BYTES_LITTLE_ENDIAN
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        This flag is used in conjunction with __IEEE_BIG_ENDIAN to describe a situation
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        whereby multiple words of an IEEE floating point are in big endian order, but the
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        words themselves are little endian with respect to the bytes.
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   _DOUBLE_IS_32BITS
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        This is used on platforms that support double by using the 32-bit IEEE
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        float type.
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   _FLOAT_ARG
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        This represents what type a float arg is passed as.  It is used when the type is
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        not promoted to double.
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51 
*/
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#if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__)
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/* ARM traditionally used big-endian words; and within those words the
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   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.  */
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#ifdef __VFP_FP__
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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
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# endif
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#else
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# define __IEEE_BIG_ENDIAN
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# ifdef __ARMEL__
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#  define __IEEE_BYTES_LITTLE_ENDIAN
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# endif
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#endif
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#endif
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#ifdef __hppa__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __SPU__
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#define __IEEE_BIG_ENDIAN
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#define isfinite(y) \
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          (__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) \
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          (__extension__ ({__typeof__(x) __x = (x); \
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                           (sizeof (__x) == sizeof (float))  ? (0) : __isinfd(__x);}))
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#define isnan(x) \
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          (__extension__ ({__typeof__(x) __x = (x); \
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                           (sizeof (__x) == sizeof (float))  ? (0) : __isnand(__x);}))
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/*
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 * Macros for use in ieeefp.h. We can't just define the real ones here
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 * (like those above) as we have name space issues when this is *not*
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 * included via generic the ieeefp.h.
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 */
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#define __ieeefp_isnanf(x)      0
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#define __ieeefp_isinff(x)      0
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#define __ieeefp_finitef(x)     1
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#endif
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#ifdef __sparc__
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#ifdef __LITTLE_ENDIAN_DATA__
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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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#endif
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#if defined(__m68k__) || defined(__mc68000__)
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#define __IEEE_BIG_ENDIAN
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#endif
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#if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__)
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#define __IEEE_BIG_ENDIAN
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#ifdef __HAVE_SHORT_DOUBLE__
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# define _DOUBLE_IS_32BITS
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#endif
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#endif
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#if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__) || defined (__H8500__) || defined (__H8300SX__)
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#define __IEEE_BIG_ENDIAN
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#define _FLOAT_ARG float
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#define _DOUBLE_IS_32BITS
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#endif
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#ifdef __sh__
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#ifdef __LITTLE_ENDIAN__
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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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#if defined(__SH2E__) || defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A_SINGLE_ONLY__)
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#define _DOUBLE_IS_32BITS
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#endif
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#endif
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#ifdef _AM29K
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef _WIN32
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __i386__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __i960__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __lm32__
153 
#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __M32R__
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#define __IEEE_BIG_ENDIAN
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#endif
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#if defined(_C4x) || defined(_C3x)
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#define __IEEE_BIG_ENDIAN
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#define _DOUBLE_IS_32BITS
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#endif
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#ifdef __TIC80__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __MIPSEL__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __MIPSEB__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __MMIX__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __D30V__
181 
#define __IEEE_BIG_ENDIAN
182 
#endif
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/* necv70 was __IEEE_LITTLE_ENDIAN. */
185 
 
186 
#ifdef __W65__
187 
#define __IEEE_LITTLE_ENDIAN
188 
#define _DOUBLE_IS_32BITS
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#endif
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#if defined(__Z8001__) || defined(__Z8002__)
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#define __IEEE_BIG_ENDIAN
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#endif
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195 
#ifdef __m88k__
196 
#define __IEEE_BIG_ENDIAN
197 
#endif
198 
 
199 
#ifdef __mn10300__
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#define __IEEE_LITTLE_ENDIAN
201 
#endif
202 
 
203 
#ifdef __mn10200__
204 
#define __IEEE_LITTLE_ENDIAN
205 
#define _DOUBLE_IS_32BITS
206 
#endif
207 
 
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#ifdef __v800
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#define __IEEE_LITTLE_ENDIAN
210 
#endif
211 
 
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#ifdef __v850
213 
#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __D10V__
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#define __IEEE_BIG_ENDIAN
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#if __DOUBLE__ == 32
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#define _DOUBLE_IS_32BITS
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#endif
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#endif
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#ifdef __PPC__
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#if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) || (defined(_AIX) && _AIX)
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#define __IEEE_BIG_ENDIAN
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#else
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#if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) || (defined(__sun__) && __sun__) || (defined(_WIN32) && _WIN32)
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#endif
231 
#endif
232 
 
233 
#ifdef __xstormy16__
234 
#define __IEEE_LITTLE_ENDIAN
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#endif
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237 
#ifdef __arc__
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#ifdef __big_endian__
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#define __IEEE_BIG_ENDIAN
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#else
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#endif
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#ifdef __CRX__
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#define __IEEE_LITTLE_ENDIAN
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#endif
248 
 
249 
#ifdef __fr30__
250 
#define __IEEE_BIG_ENDIAN
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#endif
252 
 
253 
#ifdef __mcore__
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#define __IEEE_BIG_ENDIAN
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#endif
256 
 
257 
#ifdef __mt__
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#define __IEEE_BIG_ENDIAN
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#endif
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261 
#ifdef __frv__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __ia64__
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#ifdef __BIG_ENDIAN__
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#define __IEEE_BIG_ENDIAN
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#else
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#endif
272 
 
273 
#ifdef __AVR__
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#define __IEEE_LITTLE_ENDIAN
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#define _DOUBLE_IS_32BITS
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#endif
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278 
#if defined(__or32__) || defined(__or1k__) || defined(__or16__) || defined(__OR32__) || defined(__OR1K__)
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#define __IEEE_BIG_ENDIAN
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#endif
281 
 
282 
#ifdef __IP2K__
283 
#define __IEEE_BIG_ENDIAN
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#define __SMALL_BITFIELDS
285 
#define _DOUBLE_IS_32BITS
286 
#endif
287 
 
288 
#ifdef __iq2000__
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#define __IEEE_BIG_ENDIAN
290 
#endif
291 
 
292 
#ifdef __MAVERICK__
293 
#ifdef __ARMEL__
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#  define __IEEE_LITTLE_ENDIAN
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#else  /* must be __ARMEB__ */
296 
#  define __IEEE_BIG_ENDIAN
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#endif /* __ARMEL__ */
298 
#endif /* __MAVERICK__ */
299 
 
300 
#ifdef __m32c__
301 
#define __IEEE_LITTLE_ENDIAN
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#define __SMALL_BITFIELDS
303 
#endif
304 
 
305 
#ifdef __CRIS__
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#define __IEEE_LITTLE_ENDIAN
307 
#endif
308 
 
309 
#ifdef __BFIN__
310 
#define __IEEE_LITTLE_ENDIAN
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#endif
312 
 
313 
#ifdef __x86_64__
314 
#define __IEEE_LITTLE_ENDIAN
315 
#endif
316 
 
317 
#ifdef __mep__
318 
#ifdef __LITTLE_ENDIAN__
319 
#define __IEEE_LITTLE_ENDIAN
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#else
321 
#define __IEEE_BIG_ENDIAN
322 
#endif
323 
#endif
324 
 
325 
#ifndef __IEEE_BIG_ENDIAN
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#ifndef __IEEE_LITTLE_ENDIAN
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#error Endianess not declared!!
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#endif /* not __IEEE_LITTLE_ENDIAN */
329 
#endif /* not __IEEE_BIG_ENDIAN */
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331 
#endif /* not __IEEE_LITTLE_ENDIAN */
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#endif /* not __IEEE_BIG_ENDIAN */
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