newlib/libc/include/machine/ieee.h

   1 #ifndef _MACHINE_IEEE_H_
   2 #define _MACHINE_IEEE_H_
   3 #include <sys/types.h>
   4 #include <sys/cdefs.h>
   5 #include <machine/ieeefp.h>
   6 #include <float.h>
   7
   8 #if LDBL_MANT_DIG == 24
   9 #define EXT_IMPLICIT_NBIT
  10 #define EXT_TO_ARRAY32(p, a) do {      \
  11     (a)[0] = (p)->ext_frac;  \
  12 } while (0)
  13 #ifdef __IEEE_LITTLE_ENDIAN
  14 struct ieee_ext {
  15     uint32_t   ext_frac:23;
  16     uint32_t   ext_exp:8;
  17     uint32_t   ext_sign:1;
  18 };
  19 #endif
  20 #ifdef __IEEE_BIG_ENDIAN
  21 struct ieee_ext {
  22 #ifndef ___IEEE_BYTES_LITTLE_ENDIAN
  23     uint32_t   ext_sign:1;
  24     uint32_t   ext_exp:8;
  25     uint32_t   ext_frac:23;
  26 #else /* ARMEL without __VFP_FP__ */
  27     uint32_t   ext_frac:23;
  28     uint32_t   ext_exp:8;
  29     uint32_t   ext_sign:1;
  30 #endif
  31 };
  32 #endif
  33 #elif LDBL_MANT_DIG == 53
  34 #define EXT_IMPLICIT_NBIT
  35 #define EXT_TO_ARRAY32(p, a) do {       \
  36     (a)[0] = (p)->ext_fracl;  \
  37     (a)[1] = (p)->ext_frach;  \
  38 } while (0)
  39 #ifdef __IEEE_LITTLE_ENDIAN
  40 struct ieee_ext {
  41     uint32_t   ext_fracl;
  42     uint32_t   ext_frach:20;
  43     uint32_t   ext_exp:11;
  44     uint32_t   ext_sign:1;
  45 };
  46 #endif
  47 #ifdef __IEEE_BIG_ENDIAN
  48 struct ieee_ext {
  49 #ifndef ___IEEE_BYTES_LITTLE_ENDIAN
  50     uint32_t   ext_sign:1;
  51     uint32_t   ext_exp:11;
  52     uint32_t   ext_frach:20;
  53 #else /* ARMEL without __VFP_FP__ */
  54     uint32_t   ext_frach:20;
  55     uint32_t   ext_exp:11;
  56     uint32_t   ext_sign:1;
  57 #endif
  58     uint32_t   ext_fracl;
  59 };
  60 #endif
  61 #elif LDBL_MANT_DIG == 64
  62 #define EXT_TO_ARRAY32(p, a) do {       \
  63     (a)[0] = (p)->ext_fracl;  \
  64     (a)[1] = (p)->ext_frach;  \
  65 } while (0)
  66 #ifdef __IEEE_LITTLE_ENDIAN /* for Intel CPU */
  67 struct ieee_ext {
  68     uint32_t   ext_fracl;
  69     uint32_t   ext_frach;
  70     uint32_t   ext_exp:15;
  71     uint32_t   ext_sign:1;
  72     uint32_t   ext_padl:16;
  73     uint32_t   ext_padh;
  74 };
  75 #endif
  76 #ifdef __IEEE_BIG_ENDIAN
  77 struct ieee_ext {
  78 #ifndef ___IEEE_BYTES_LITTLE_ENDIAN /* for m68k */
  79     uint32_t   ext_sign:1;
  80     uint32_t   ext_exp:15;
  81     uint32_t   ext_pad:16;
  82 #else /* ARM FPA10 math coprocessor */
  83     uint32_t   ext_exp:15;
  84     uint32_t   ext_pad:16;
  85     uint32_t   ext_sign:1;
  86 #endif
  87     uint32_t   ext_frach;
  88     uint32_t   ext_fracl;
  89 };
  90 #endif
  91 #elif LDBL_MANT_DIG == 113
  92 #define EXT_IMPLICIT_NBIT
  93 #define EXT_TO_ARRAY32(p, a) do {        \
  94     (a)[0] = (p)->ext_fracl;   \
  95     (a)[1] = (p)->ext_fraclm;  \
  96     (a)[2] = (p)->ext_frachm;  \
  97     (a)[3] = (p)->ext_frach;   \
  98 } while (0)
  99 #ifdef __IEEE_LITTLE_ENDIAN
 100 struct ieee_ext {
 101     uint32_t   ext_fracl;
 102     uint32_t   ext_fraclm;
 103     uint32_t   ext_frachm;
 104     uint32_t   ext_frach:16;
 105     uint32_t   ext_exp:15;
 106     uint32_t   ext_sign:1;
 107 };
 108 #endif
 109 #ifdef __IEEE_BIG_ENDIAN
 110 struct ieee_ext {
 111 #ifndef ___IEEE_BYTES_LITTLE_ENDIAN
 112     uint32_t   ext_sign:1;
 113     uint32_t   ext_exp:15;
 114     uint32_t   ext_frach:16;
 115 #else /* ARMEL without __VFP_FP__ */
 116     uint32_t   ext_frach:16;
 117     uint32_t   ext_exp:15;
 118     uint32_t   ext_sign:1;
 119 #endif
 120     uint32_t   ext_frachm;
 121     uint32_t   ext_fraclm;
 122     uint32_t   ext_fracl;
 123 };
 124 #endif
 125 #endif
 126
 127 #endif /* _MACHINE_IEEE_H_ */