sys/arch/m68k/include/ieeefp.h

   1 /*      $NetBSD: ieeefp.h,v 1.6 2008/08/05 16:47:42 matt Exp $  */
   2
   3 /*
   4  * Written by J.T. Conklin, Apr 6, 1995
   5  * Modified by Jason R. Thorpe, June 22, 2003
   6  * Public domain.
   7  */
   8
   9 #ifndef _M68K_IEEEFP_H_
  10 #define _M68K_IEEEFP_H_
  11
  12 #include <sys/featuretest.h>
  13
  14 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
  15
  16 typedef int fenv_t;
  17 typedef int fexcept_t;
  18
  19 #define FE_INEXACT      0x01    /* imprecise (loss of precision) */
  20 #define FE_DIVBYZERO    0x02    /* divide-by-zero exception */
  21 #define FE_UNDERFLOW    0x04    /* overflow exception */
  22 #define FE_OVERFLOW     0x08    /* underflow exception */
  23 #define FE_INVALID      0x10    /* invalid operation exception */
  24
  25 #define FE_ALL_EXCEPT   0x1f
  26
  27 #define FE_TONEAREST    0       /* round to nearest representable number */
  28 #define FE_TOWARDZERO   1       /* round to zero (truncate) */
  29 #define FE_DOWNWARD     2       /* round toward negative infinity */
  30 #define FE_UPWARD       3       /* round toward positive infinity */
  31
  32 #if !defined(_ISOC99_SOURCE)
  33
  34 typedef int fp_except;
  35
  36 #define FP_X_IMP        FE_INEXACT      /* imprecise (loss of precision) */
  37 #define FP_X_DZ         FE_DIVBYZERO    /* divide-by-zero exception */
  38 #define FP_X_UFL        FE_UNDERFLOW    /* underflow exception */
  39 #define FP_X_OFL        FE_OVERFLOW     /* overflow exception */
  40 #define FP_X_INV        FE_INVALID      /* invalid operation exception */
  41
  42 typedef enum {
  43     FP_RN=FE_TONEAREST,         /* round to nearest representable number */
  44     FP_RZ=FE_TOWARDZERO,        /* round to zero (truncate) */
  45     FP_RM=FE_DOWNWARD,          /* round toward negative infinity */
  46     FP_RP=FE_UPWARD             /* round toward positive infinity */
  47 } fp_rnd;
  48
  49 typedef enum {
  50     FP_PE=0,                    /* extended-precision (64-bit) */
  51     FP_PS=1,                    /* single-precision (24-bit) */
  52     FP_PD=2                     /* double-precision (53-bit) */
  53 } fp_prec;
  54
  55 #endif /* defined(_NETBSD_SOURCE) */
  56
  57 #define __HAVE_FP_PREC
  58
  59
  60 #endif  /* _NETBSD_SOURCE || _ISOC99_SOURCE */
  61
  62 #endif /* _M68K_IEEEFP_H_ */