209 lines
3.9 KiB
C
209 lines
3.9 KiB
C
#ifndef __IEEE_BIG_ENDIAN
|
|
#ifndef __IEEE_LITTLE_ENDIAN
|
|
|
|
/* This file can define macros to choose variations of the IEEE float
|
|
format:
|
|
|
|
_FLT_LARGEST_EXPONENT_IS_NORMAL
|
|
|
|
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.
|
|
|
|
_FLT_NO_DENORMALS
|
|
|
|
Defined if the float format does not support IEEE denormals. Every
|
|
float with a zero exponent is taken to be a zero representation.
|
|
|
|
??? At the moment, there are no equivalent macros for doubles and
|
|
the macros are not fully supported by --enable-newlib-hw-fp. */
|
|
|
|
#if defined(__arm__) || defined(__thumb__)
|
|
/* ARM always has big-endian words. Within those words the byte ordering
|
|
will be big or little endian depending upon the target. */
|
|
#define __IEEE_BIG_ENDIAN
|
|
#ifdef __ARMEL__
|
|
#define __IEEE_BYTES_LITTLE_ENDIAN
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __hppa__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __sparc__
|
|
#ifdef __LITTLE_ENDIAN_DATA__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#else
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(__m68k__) || defined(__mc68000__)
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__)
|
|
#define __IEEE_BIG_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#define _DOUBLE_IS_32BITS
|
|
#endif
|
|
|
|
#ifdef __H8500__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#define _DOUBLE_IS_32BITS
|
|
#endif
|
|
|
|
#ifdef __sh__
|
|
#ifdef __LITTLE_ENDIAN__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#else
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
#if defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__)
|
|
#define _DOUBLE_IS_32BITS
|
|
#endif
|
|
#endif
|
|
|
|
#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 __M32R__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __TIC80__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __MIPSEL__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#endif
|
|
#ifdef __MIPSEB__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __MMIX__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
/* necv70 was __IEEE_LITTLE_ENDIAN. */
|
|
|
|
#ifdef __W65__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#define _DOUBLE_IS_32BITS
|
|
#endif
|
|
|
|
#if defined(__Z8001__) || defined(__Z8002__)
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __m88k__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __mn10300__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __mn10200__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#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
|
|
#define __SMALL_BITFIELDS
|
|
#endif
|
|
|
|
#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
|
|
|
|
#ifdef __arc__
|
|
#ifdef __big_endian__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#else
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __fr30__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __mcore__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __frv__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __ia64__
|
|
#ifdef __BIG_ENDIAN__
|
|
#define __IEEE_BIG_ENDIAN
|
|
#else
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __AVR__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#define _DOUBLE_IS_32BITS
|
|
#endif
|
|
|
|
#if defined(__or32__) || defined(__or1k__) || defined(__or16__)
|
|
#define __IEEE_BIG_ENDIAN
|
|
#endif
|
|
|
|
#ifdef __xstormy16__
|
|
#define __IEEE_LITTLE_ENDIAN
|
|
#define __SMALL_BITFIELDS
|
|
#endif
|
|
|
|
#ifndef __IEEE_BIG_ENDIAN
|
|
#ifndef __IEEE_LITTLE_ENDIAN
|
|
#error Endianess not declared!!
|
|
#endif /* not __IEEE_LITTLE_ENDIAN */
|
|
#endif /* not __IEEE_BIG_ENDIAN */
|
|
|
|
#endif /* not __IEEE_LITTLE_ENDIAN */
|
|
#endif /* not __IEEE_BIG_ENDIAN */
|
|
|