toolchain/gcc/newlib/libc/machine/powerpc/fix64.h

   1 #ifndef _FIX64_H_
   2
   3 #define _FIX64_H_
   4
   5 #include <ieeefp.h>
   6 #include <math.h>
   7 #include <float.h>
   8 #include <errno.h>
   9 #include <sys/config.h>
  10
  11 #ifdef __IEEE_LITTLE_ENDIAN
  12 #define IEEE_8087
  13 #endif
  14
  15 #ifdef __IEEE_BIG_ENDIAN
  16 #define IEEE_MC68k
  17 #endif
  18
  19 #ifdef __Z8000__
  20 #define Just_16
  21 #endif
  22
  23 #if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1
  24 Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
  25 #endif
  26
  27 union long_double_union
  28 {
  29   long double ld;
  30   __uint32_t i[4];
  31 };
  32
  33 typedef union long_double_union LONG_DOUBLE_UNION;
  34
  35 extern void _simdstrtold (char *, char **, LONG_DOUBLE_UNION *);
  36 extern int  _simdldcheck (LONG_DOUBLE_UNION *);
  37
  38 #define SIMD_LDBL_MANT_DIG 113
  39
  40 #ifdef IEEE_8087
  41 # define word0(x) (x.i[3])
  42 # define word1(x) (x.i[2])
  43 # define word2(x) (x.i[1])
  44 # define word3(x) (x.i[0])
  45 #else /* !IEEE_8087 */
  46 # define word0(x) (x.i[0])
  47 # define word1(x) (x.i[1])
  48 # define word2(x) (x.i[2])
  49 # define word3(x) (x.i[3])
  50 #endif /* !IEEE_8087 */
  51
  52 #undef  Exp_shift
  53 #define Exp_shift   16
  54 #undef  Exp_mask
  55 #define Exp_mask    ((__uint32_t)0x7fff0000L)
  56 #undef  Exp_msk1
  57 #define Exp_msk1    ((__uint32_t)0x00010000L)
  58 #undef  Bias
  59 #define Bias         16383
  60 #undef  Ebits
  61 #define Ebits        15
  62 #undef  Sign_bit
  63 #define Sign_bit    ((__uint32_t)0x80000000L)
  64 #define init(x) {}
  65
  66 union fix64_union
  67 {
  68   __uint64_t ll;
  69   __uint32_t j[2];
  70 };
  71
  72 #ifdef __LITTLE_ENDIAN__
  73 # define hiword(y) (y.j[1])
  74 # define loword(y) (y.j[0])
  75 #else /* __BIG_ENDIAN__ */
  76 # define hiword(y) (y.j[0])
  77 # define loword(y) (y.j[1])
  78 #endif /* __BIG_ENDIAN__ */
  79
  80 #endif /* _FIX64_H_ */