openlibm_fenv_powerpc.h File Reference

#include <sys/types.h>

Include dependency graph for openlibm_fenv_powerpc.h:

Classes
union	__fpscr
struct	__fpscr.__bits

Macros
#define	__fenv_static   static
#define	FE_INEXACT   0x02000000
#define	FE_DIVBYZERO   0x04000000
#define	FE_UNDERFLOW   0x08000000
#define	FE_OVERFLOW   0x10000000
#define	FE_INVALID   0x20000000 /* all types of invalid FP ops */
#define	FE_VXCVI   0x00000100 /* invalid integer convert */
#define	FE_VXSQRT   0x00000200 /* square root of a negative */
#define	FE_VXSOFT   0x00000400 /* software-requested exception */
#define	FE_VXVC   0x00080000 /* ordered comparison involving NaN */
#define	FE_VXIMZ   0x00100000 /* inf * 0 */
#define	FE_VXZDZ   0x00200000 /* 0 / 0 */
#define	FE_VXIDI   0x00400000 /* inf / inf */
#define	FE_VXISI   0x00800000 /* inf - inf */
#define	FE_VXSNAN   0x01000000 /* operation on a signalling NaN */
#define	FE_ALL_INVALID
#define	FE_ALL_EXCEPT
#define	FE_TONEAREST   0x0000
#define	FE_TOWARDZERO   0x0001
#define	FE_UPWARD   0x0002
#define	FE_DOWNWARD   0x0003
#define	_ROUND_MASK
#define	FE_DFL_ENV   (&__fe_dfl_env)
#define	_FPUSW_SHIFT   22
#define	_ENABLE_MASK
#define	__mffs(__env)   __asm __volatile("mffs %0" : "=f" (*(__env)))
#define	__mtfsf(__env)   __asm __volatile("mtfsf 255,%0" : : "f" (__env))

Typedefs
typedef __uint32_t	fenv_t
typedef __uint32_t	fexcept_t

Functions
__fenv_static int	feclearexcept (int __excepts)
__fenv_static int	fegetexceptflag (fexcept_t *__flagp, int __excepts)
__fenv_static int	fesetexceptflag (const fexcept_t *__flagp, int __excepts)
__fenv_static int	feraiseexcept (int __excepts)
__fenv_static int	fetestexcept (int __excepts)
__fenv_static int	fegetround (void)
__fenv_static int	fesetround (int __round)
__fenv_static int	fegetenv (fenv_t *__envp)
__fenv_static int	feholdexcept (fenv_t *__envp)
__fenv_static int	fesetenv (const fenv_t *__envp)
__fenv_static int	feupdateenv (const fenv_t *__envp)

Variables
__BEGIN_DECLS const fenv_t	__fe_dfl_env

---

Class Documentation

__fpscr

union __fpscr

Class Members
struct __fpscr	__bits
double	__d

__fpscr.__bits

struct __fpscr.__bits

Class Members
__uint32_t	__junk
fenv_t	__reg

Macro Definition Documentation

__fenv_static

#define __fenv_static   static

__mffs

#define __mffs

(

__env

)

__asm __volatile("mffs %0" : "=f" (*(__env)))

__mtfsf

#define __mtfsf

(

__env

)

__asm __volatile("mtfsf 255,%0" : : "f" (__env))

_ENABLE_MASK

#define _ENABLE_MASK

Value:

((FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \
             FE_OVERFLOW | FE_UNDERFLOW) >> _FPUSW_SHIFT)

_FPUSW_SHIFT

#define _FPUSW_SHIFT   22

_ROUND_MASK

#define _ROUND_MASK

Value:

(FE_TONEAREST | FE_DOWNWARD | \
             FE_UPWARD | FE_TOWARDZERO)

FE_ALL_EXCEPT

#define FE_ALL_EXCEPT

Value:

(FE_DIVBYZERO | FE_INEXACT | \
             FE_ALL_INVALID | FE_OVERFLOW | FE_UNDERFLOW)

FE_ALL_INVALID

#define FE_ALL_INVALID

Value:

(FE_VXCVI | FE_VXSQRT | FE_VXSOFT | FE_VXVC | \
             FE_VXIMZ | FE_VXZDZ | FE_VXIDI | FE_VXISI | \
             FE_VXSNAN | FE_INVALID)

FE_DFL_ENV

#define FE_DFL_ENV   (&__fe_dfl_env)

FE_DIVBYZERO

#define FE_DIVBYZERO   0x04000000

FE_DOWNWARD

#define FE_DOWNWARD   0x0003

FE_INEXACT

#define FE_INEXACT   0x02000000

FE_INVALID

#define FE_INVALID   0x20000000 /* all types of invalid FP ops */

FE_OVERFLOW

#define FE_OVERFLOW   0x10000000

FE_TONEAREST

#define FE_TONEAREST   0x0000

FE_TOWARDZERO

#define FE_TOWARDZERO   0x0001

FE_UNDERFLOW

#define FE_UNDERFLOW   0x08000000

FE_UPWARD

#define FE_UPWARD   0x0002

FE_VXCVI

#define FE_VXCVI   0x00000100 /* invalid integer convert */

FE_VXIDI

#define FE_VXIDI   0x00400000 /* inf / inf */

FE_VXIMZ

#define FE_VXIMZ   0x00100000 /* inf * 0 */

FE_VXISI

#define FE_VXISI   0x00800000 /* inf - inf */

FE_VXSNAN

#define FE_VXSNAN   0x01000000 /* operation on a signalling NaN */

FE_VXSOFT

#define FE_VXSOFT   0x00000400 /* software-requested exception */

FE_VXSQRT

#define FE_VXSQRT   0x00000200 /* square root of a negative */

FE_VXVC

#define FE_VXVC   0x00080000 /* ordered comparison involving NaN */

FE_VXZDZ

#define FE_VXZDZ   0x00200000 /* 0 / 0 */

Typedef Documentation

fenv_t

typedef __uint32_t fenv_t

fexcept_t

typedef __uint32_t fexcept_t

Function Documentation

feclearexcept()

__fenv_static int feclearexcept ( int  __excepts )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, FE_ALL_INVALID, and FE_INVALID.

fegetenv()

__fenv_static int fegetenv ( fenv_t *  __envp )

inline

References __fpscr::__bits, __fpscr::__d, and __mffs.

fegetexceptflag()

__fenv_static int fegetexceptflag ( fexcept_t *  __flagp, int  __excepts  )

inline

References __fpscr::__bits, __fpscr::__d, and __mffs.

fegetround()

__fenv_static int fegetround ( void  )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, and _ROUND_MASK.

feholdexcept()

__fenv_static int feholdexcept ( fenv_t *  __envp )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, _ENABLE_MASK, and FE_ALL_EXCEPT.

feraiseexcept()

__fenv_static int feraiseexcept ( int  __excepts )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, FE_INVALID, and FE_VXSOFT.

fesetenv()

__fenv_static int fesetenv ( const fenv_t *  __envp )

inline

References __fpscr::__bits, __fpscr::__d, and __mtfsf.

fesetexceptflag()

__fenv_static int fesetexceptflag ( const fexcept_t *  __flagp, int  __excepts  )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, FE_ALL_EXCEPT, and FE_INVALID.

fesetround()

__fenv_static int fesetround ( int  __round )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, and _ROUND_MASK.

fetestexcept()

__fenv_static int fetestexcept ( int  __excepts )

inline

References __fpscr::__bits, __fpscr::__d, and __mffs.

feupdateenv()

__fenv_static int feupdateenv ( const fenv_t *  __envp )

inline

References __fpscr::__bits, __fpscr::__d, __mffs, __mtfsf, and FE_ALL_EXCEPT.

Variable Documentation

__fe_dfl_env

__BEGIN_DECLS const fenv_t __fe_dfl_env