0,0 → 1,382 |
#ifndef __IEEE_BIG_ENDIAN |
#ifndef __IEEE_LITTLE_ENDIAN |
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/* This file can define macros to choose variations of the IEEE float |
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 |
numbers rather than NaN and infinity representations. Such a |
format cannot represent NaNs or infinities at all, but it's FLT_MAX |
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 |
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 |
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 |
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 |
with __IEEE_BIG_ENDIAN. |
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Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a |
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 |
whereby multiple words of an IEEE floating point are in big endian order, but the |
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 |
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 |
not promoted to double. |
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*/ |
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#if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__) |
/* ARM traditionally used big-endian words; and within those words the |
byte ordering was big or little endian depending upon the target. |
Modern floating-point formats are naturally ordered; in this case |
__VFP_FP__ will be defined, even if soft-float. */ |
#ifdef __VFP_FP__ |
# ifdef __ARMEL__ |
# define __IEEE_LITTLE_ENDIAN |
# else |
# define __IEEE_BIG_ENDIAN |
# endif |
#else |
# define __IEEE_BIG_ENDIAN |
# ifdef __ARMEL__ |
# define __IEEE_BYTES_LITTLE_ENDIAN |
# endif |
#endif |
#endif |
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#ifdef __hppa__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __SPU__ |
#define __IEEE_BIG_ENDIAN |
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#define isfinite(__y) \ |
(__extension__ ({int __cy; \ |
(sizeof (__y) == sizeof (float)) ? (1) : \ |
(__cy = fpclassify(__y)) != FP_INFINITE && __cy != FP_NAN;})) |
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#define isinf(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isinfd(__x)) |
#define isnan(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isnand(__x)) |
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/* |
* Macros for use in ieeefp.h. We can't just define the real ones here |
* (like those above) as we have name space issues when this is *not* |
* included via generic the ieeefp.h. |
*/ |
#define __ieeefp_isnanf(x) 0 |
#define __ieeefp_isinff(x) 0 |
#define __ieeefp_finitef(x) 1 |
#endif |
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#ifdef __sparc__ |
#ifdef __LITTLE_ENDIAN_DATA__ |
#define __IEEE_LITTLE_ENDIAN |
#else |
#define __IEEE_BIG_ENDIAN |
#endif |
#endif |
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#if defined(__m68k__) || defined(__mc68000__) |
#define __IEEE_BIG_ENDIAN |
#endif |
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#if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__) |
#define __IEEE_BIG_ENDIAN |
#ifdef __HAVE_SHORT_DOUBLE__ |
# define _DOUBLE_IS_32BITS |
#endif |
#endif |
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#if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__) || defined (__H8500__) || defined (__H8300SX__) |
#define __IEEE_BIG_ENDIAN |
#define _FLOAT_ARG float |
#define _DOUBLE_IS_32BITS |
#endif |
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#if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__) |
#define __IEEE_LITTLE_ENDIAN |
#define _FLOAT_ARG float |
#define _DOUBLE_IS_32BITS |
#endif |
|
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#ifdef __sh__ |
#ifdef __LITTLE_ENDIAN__ |
#define __IEEE_LITTLE_ENDIAN |
#else |
#define __IEEE_BIG_ENDIAN |
#endif |
#if defined(__SH2E__) || defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A_SINGLE_ONLY__) |
#define _DOUBLE_IS_32BITS |
#endif |
#endif |
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#ifdef _AM29K |
#define __IEEE_BIG_ENDIAN |
#endif |
|
#ifdef _WIN32 |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __i386__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __i960__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __lm32__ |
#define __IEEE_BIG_ENDIAN |
#endif |
|
#ifdef __M32R__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#if defined(_C4x) || defined(_C3x) |
#define __IEEE_BIG_ENDIAN |
#define _DOUBLE_IS_32BITS |
#endif |
|
#ifdef __TMS320C6X__ |
#ifdef _BIG_ENDIAN |
#define __IEEE_BIG_ENDIAN |
#else |
#define __IEEE_LITTLE_ENDIAN |
#endif |
#endif |
|
#ifdef __TIC80__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __MIPSEL__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
#ifdef __MIPSEB__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __MMIX__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __D30V__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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/* necv70 was __IEEE_LITTLE_ENDIAN. */ |
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#ifdef __W65__ |
#define __IEEE_LITTLE_ENDIAN |
#define _DOUBLE_IS_32BITS |
#endif |
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#if defined(__Z8001__) || defined(__Z8002__) |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __m88k__ |
#define __IEEE_BIG_ENDIAN |
#endif |
|
#ifdef __mn10300__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __mn10200__ |
#define __IEEE_LITTLE_ENDIAN |
#define _DOUBLE_IS_32BITS |
#endif |
|
#ifdef __v800 |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __v850 |
#define __IEEE_LITTLE_ENDIAN |
#endif |
|
#ifdef __D10V__ |
#define __IEEE_BIG_ENDIAN |
#if __DOUBLE__ == 32 |
#define _DOUBLE_IS_32BITS |
#endif |
#endif |
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#ifdef __PPC__ |
#if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) || (defined(_AIX) && _AIX) |
#define __IEEE_BIG_ENDIAN |
#else |
#if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) || (defined(__sun__) && __sun__) || (defined(_WIN32) && _WIN32) |
#define __IEEE_LITTLE_ENDIAN |
#endif |
#endif |
#endif |
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#ifdef __xstormy16__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __arc__ |
#ifdef __big_endian__ |
#define __IEEE_BIG_ENDIAN |
#else |
#define __IEEE_LITTLE_ENDIAN |
#endif |
#endif |
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#ifdef __CRX__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __fr30__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __mcore__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __mt__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __frv__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __moxie__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __ia64__ |
#ifdef __BIG_ENDIAN__ |
#define __IEEE_BIG_ENDIAN |
#else |
#define __IEEE_LITTLE_ENDIAN |
#endif |
#endif |
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#ifdef __AVR__ |
#define __IEEE_LITTLE_ENDIAN |
#define _DOUBLE_IS_32BITS |
#endif |
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#if defined(__or32__) || defined(__or1k__) || defined(__or16__) |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __IP2K__ |
#define __IEEE_BIG_ENDIAN |
#define __SMALL_BITFIELDS |
#define _DOUBLE_IS_32BITS |
#endif |
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#ifdef __iq2000__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __MAVERICK__ |
#ifdef __ARMEL__ |
# define __IEEE_LITTLE_ENDIAN |
#else /* must be __ARMEB__ */ |
# define __IEEE_BIG_ENDIAN |
#endif /* __ARMEL__ */ |
#endif /* __MAVERICK__ */ |
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#ifdef __m32c__ |
#define __IEEE_LITTLE_ENDIAN |
#define __SMALL_BITFIELDS |
#endif |
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#ifdef __CRIS__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __BFIN__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __x86_64__ |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifdef __mep__ |
#ifdef __LITTLE_ENDIAN__ |
#define __IEEE_LITTLE_ENDIAN |
#else |
#define __IEEE_BIG_ENDIAN |
#endif |
#endif |
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#ifdef __MICROBLAZE__ |
#define __IEEE_BIG_ENDIAN |
#endif |
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#ifdef __RL78__ |
#define __IEEE_LITTLE_ENDIAN |
#define __SMALL_BITFIELDS /* 16 Bit INT */ |
#define _DOUBLE_IS_32BITS |
#endif |
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#ifdef __RX__ |
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#ifdef __RX_BIG_ENDIAN__ |
#define __IEEE_BIG_ENDIAN |
#else |
#define __IEEE_LITTLE_ENDIAN |
#endif |
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#ifndef __RX_64BIT_DOUBLES__ |
#define _DOUBLE_IS_32BITS |
#endif |
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#ifdef __RX_16BIT_INTS__ |
#define __SMALL_BITFIELDS |
#endif |
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#endif |
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#if (defined(__CR16__) || defined(__CR16C__) ||defined(__CR16CP__)) |
#define __IEEE_LITTLE_ENDIAN |
#define __SMALL_BITFIELDS /* 16 Bit INT */ |
#endif |
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#ifndef __IEEE_BIG_ENDIAN |
#ifndef __IEEE_LITTLE_ENDIAN |
#error Endianess not declared!! |
#endif /* not __IEEE_LITTLE_ENDIAN */ |
#endif /* not __IEEE_BIG_ENDIAN */ |
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#endif /* not __IEEE_LITTLE_ENDIAN */ |
#endif /* not __IEEE_BIG_ENDIAN */ |
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