195 lines
3.7 KiB
C
195 lines
3.7 KiB
C
#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 for doubles and
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the macros are not fully supported by --enable-newlib-hw-fp. */
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#if defined(__arm__) || defined(__thumb__)
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/* ARM always has big-endian words. Within those words the byte ordering
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will be big or little endian depending upon the target. */
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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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#ifdef __hppa__
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#define __IEEE_BIG_ENDIAN
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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 (__H8300__) || defined (__H8300H__) || defined (__H8300S__)
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#define __IEEE_BIG_ENDIAN
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#define __SMALL_BITFIELDS
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#define _DOUBLE_IS_32BITS
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#endif
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#ifdef __H8500__
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#define __IEEE_BIG_ENDIAN
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#define __SMALL_BITFIELDS
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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(__SH3E__) || defined(__SH4_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 __M32R__
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#define __IEEE_BIG_ENDIAN
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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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/* necv70 was __IEEE_LITTLE_ENDIAN. */
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#ifdef __W65__
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#define __IEEE_LITTLE_ENDIAN
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#define __SMALL_BITFIELDS
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#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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#ifdef __m88k__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __mn10300__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __mn10200__
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#define __IEEE_LITTLE_ENDIAN
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#define __SMALL_BITFIELDS
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#define _DOUBLE_IS_32BITS
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#endif
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#ifdef __v800
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __v850
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#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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#define _DOUBLE_IS_32BITS
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#define __SMALL_BITFIELDS
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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
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#endif
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#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 __fr30__
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#define __IEEE_BIG_ENDIAN
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#endif
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#ifdef __mcore__
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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
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#ifdef __AVR__
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#define __IEEE_LITTLE_ENDIAN
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#define __SMALL_BITFIELDS
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#define _DOUBLE_IS_32BITS
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#endif
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#if defined(__or32__) || defined(__or1k__) || defined(__or16__)
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#define __IEEE_BIG_ENDIAN
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#endif
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#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 */
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#endif /* not __IEEE_BIG_ENDIAN */
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#endif /* not __IEEE_LITTLE_ENDIAN */
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#endif /* not __IEEE_BIG_ENDIAN */
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