compiler/stdc/math/m68k/_fpmath.h

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     IEEE floating point layout; m68k version
   6 */
   7
   8 union IEEEl2bits {
   9         long double     e;
  10         struct {
  11                 unsigned int            sign    :1;
  12                 unsigned int            exp     :15;
  13                 unsigned int            zero    :16;
  14                 unsigned int            manh    :32;
  15                 unsigned int            manl    :32;
  16         } bits;
  17         struct {
  18                 unsigned int    expsign :16;
  19                 unsigned int    junk    :16;
  20                 unsigned long long man  :64;
  21         } xbits;
  22 };
  23
  24 #define LDBL_NBIT       0x80000000
  25 #define mask_nbit_l(u)  ((u).bits.manh &= ~LDBL_NBIT)
  26
  27 #define LDBL_MANH_SIZE  32
  28 #define LDBL_MANL_SIZE  32
  29
  30 #define LDBL_TO_ARRAY32(u, a) do {                      \
  31         (a)[0] = (uint32_t)(u).bits.manl;               \
  32         (a)[1] = (uint32_t)(u).bits.manh;               \
  33 } while(0)