arch/arm-all/include/aros/fenv_soft.h

   1 /*
   2     Copyright © 2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: ARM floating-point environment for software floating point processing
   6     Lang: english
   7 */
   8
   9 #ifndef _FENV_SOFT_H_
  10 #define _FENV_SOFT_H_
  11
  12 #include <aros/system.h>
  13
  14 typedef unsigned int fenv_t;
  15 typedef unsigned int fexcept_t;
  16
  17 /* Exception flags */
  18 #define FE_INVALID    0x0001
  19 #define FE_DIVBYZERO  0x0002
  20 #define FE_OVERFLOW   0x0004
  21 #define FE_UNDERFLOW  0x0008
  22 #define FE_INEXACT    0x0010
  23 #define FE_DENORMAL   0x0080
  24 #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW | FE_DENORMAL)
  25
  26 /* Rounding modes */
  27 #define FE_TONEAREST  0x00000000
  28 #define FE_TOWARDZERO 0x00c00000
  29 #define FE_UPWARD     0x00400000
  30 #define FE_DOWNWARD   0x00800000
  31 #define _ROUND_MASK   (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)
  32
  33 __BEGIN_DECLS
  34
  35 /* Default floating-point environment */
  36 extern const fenv_t __fe_dfl_env;
  37
  38 #ifndef STDC_NOINLINE
  39 /* FIXME: Should we actually do anything here or not ? */
  40
  41 static __inline int feclearexcept(int __excepts)
  42 {
  43     return 0;
  44 }
  45
  46 static __inline int fegetexceptflag(fexcept_t *__flagp, int __excepts)
  47 {
  48     *__flagp = 0;
  49     return 0;
  50 }
  51
  52 static __inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts)
  53 {
  54     return 0;
  55 }
  56
  57 static __inline int feraiseexcept(int __excepts)
  58 {
  59     return 0;
  60 }
  61
  62 static __inline int fetestexcept(int __excepts)
  63 {
  64     return 0;
  65 }
  66
  67 static __inline int fegetround(void)
  68 {
  69     return -1;
  70 }
  71
  72 static __inline int fesetround(int __round)
  73 {
  74     return -1;
  75 }
  76
  77 static __inline int fegetenv(fenv_t *__envp)
  78 {
  79     return 0;
  80 }
  81
  82 static __inline int feholdexcept(fenv_t *__envp)
  83 {
  84     *__envp = 0;
  85     return 0;
  86 }
  87
  88 static __inline int fesetenv(const fenv_t *__envp)
  89 {
  90     return 0;
  91 }
  92
  93 static __inline int feupdateenv(const fenv_t *__envp)
  94 {
  95     return 0;
  96 }
  97 #endif /* !STDC_NOINLINE */
  98
  99 #if __BSD_VISIBLE
 100 #ifndef STDC_NOINLINE
 101 static __inline int feenableexcept(int __mask)
 102 {
 103     return 0;
 104 }
 105
 106 static __inline int fedisableexcept(int __mask)
 107 {
 108     return 0;
 109 }
 110
 111 static __inline int fegetexcept(void)
 112 {
 113     return 0;
 114 }
 115 #endif /* !STDC_NOINLINE */
 116
 117 #endif /* __BSD_VISIBLE */
 118
 119 __END_DECLS
 120
 121 #endif  /* !_FENV_VFP_H_ */