bsd_ieeefp.h File Reference

Macros
#define	fp_except_t   int
#define	FP_X_INV   0x01 /* invalid operation */
#define	FP_X_DNML   0x02 /* denormal */
#define	FP_X_DZ   0x04 /* zero divide */
#define	FP_X_OFL   0x08 /* overflow */
#define	FP_X_UFL   0x10 /* underflow */
#define	FP_X_IMP   0x20 /* (im)precision */
#define	FP_X_STK   0x40 /* stack fault */
#define	FP_MSKS_FLD   0x3f /* exception masks field */
#define	FP_PRC_FLD   0x300 /* precision control field */
#define	FP_RND_FLD   0xc00 /* rounding control field */
#define	FP_STKY_FLD   0x3f /* sticky flags field */
#define	FP_MSKS_OFF   0 /* exception masks offset */
#define	FP_PRC_OFF   8 /* precision control offset */
#define	FP_RND_OFF   10 /* rounding control offset */
#define	FP_STKY_OFF   0 /* sticky flags offset */
#define	__fldcw(addr)   __asm __volatile("fldcw %0" : : "m" (*(addr)))
#define	__fldenv(addr)   __asm __volatile("fldenv %0" : : "m" (*(addr)))
#define	__fnclex()   __asm __volatile("fnclex")
#define	__fnstcw(addr)   __asm __volatile("fnstcw %0" : "=m" (*(addr)))
#define	__fnstenv(addr)   __asm __volatile("fnstenv %0" : "=m" (*(addr)))
#define	__fnstsw(addr)   __asm __volatile("fnstsw %0" : "=m" (*(addr)))

Enumerations
enum	fp_rnd_t {   FP_RN =0, FP_RM, FP_RP, FP_RZ,   FP_RN =0, FP_RM, FP_RP, FP_RZ }
enum	fp_prec_t {   FP_PS =0, FP_PRS, FP_PD, FP_PE,   FP_PS =0, FP_PRS, FP_PD, FP_PE }

Functions
static __inline void	__fnldcw (unsigned short _cw, unsigned short _newcw)
static __inline fp_rnd_t	fpgetround (void)
static __inline fp_rnd_t	fpsetround (fp_rnd_t _m)
OLM_DLLEXPORT fp_prec_t	fpgetprec (void)
OLM_DLLEXPORT fp_prec_t	fpsetprec (fp_prec_t _m)
static __inline fp_except_t	fpgetmask (void)
static __inline fp_except_t	fpsetmask (fp_except_t _m)
static __inline fp_except_t	fpgetsticky (void)
static __inline fp_except_t	fpresetsticky (fp_except_t _m)

Macro Definition Documentation

__fldcw

#define __fldcw

(

addr

)

__asm __volatile("fldcw %0" : : "m" (*(addr)))

__fldenv

#define __fldenv

(

addr

)

__asm __volatile("fldenv %0" : : "m" (*(addr)))

__fnclex

#define __fnclex

(

)

__asm __volatile("fnclex")

__fnstcw

#define __fnstcw

(

addr

)

__asm __volatile("fnstcw %0" : "=m" (*(addr)))

__fnstenv

#define __fnstenv

(

addr

)

__asm __volatile("fnstenv %0" : "=m" (*(addr)))

__fnstsw

#define __fnstsw

(

addr

)

__asm __volatile("fnstsw %0" : "=m" (*(addr)))

fp_except_t

#define fp_except_t   int

FP_MSKS_FLD

#define FP_MSKS_FLD   0x3f /* exception masks field */

FP_MSKS_OFF

#define FP_MSKS_OFF   0 /* exception masks offset */

FP_PRC_FLD

#define FP_PRC_FLD   0x300 /* precision control field */

FP_PRC_OFF

#define FP_PRC_OFF   8 /* precision control offset */

FP_RND_FLD

#define FP_RND_FLD   0xc00 /* rounding control field */

FP_RND_OFF

#define FP_RND_OFF   10 /* rounding control offset */

FP_STKY_FLD

#define FP_STKY_FLD   0x3f /* sticky flags field */

FP_STKY_OFF

#define FP_STKY_OFF   0 /* sticky flags offset */

FP_X_DNML

#define FP_X_DNML   0x02 /* denormal */

FP_X_DZ

#define FP_X_DZ   0x04 /* zero divide */

FP_X_IMP

#define FP_X_IMP   0x20 /* (im)precision */

FP_X_INV

#define FP_X_INV   0x01 /* invalid operation */

FP_X_OFL

#define FP_X_OFL   0x08 /* overflow */

FP_X_STK

#define FP_X_STK   0x40 /* stack fault */

FP_X_UFL

#define FP_X_UFL   0x10 /* underflow */

Enumeration Type Documentation

fp_prec_t

enum fp_prec_t

Enumerator
FP_PS
FP_PRS
FP_PD
FP_PE
FP_PS
FP_PRS
FP_PD
FP_PE

fp_rnd_t

enum fp_rnd_t

Enumerator
FP_RN
FP_RM
FP_RP
FP_RZ
FP_RN
FP_RM
FP_RP
FP_RZ

Function Documentation

__fnldcw()

static __inline void __fnldcw ( unsigned short  _cw, unsigned short  _newcw  )

static

References __fldcw, __fldenv, __fnstenv, __fnstsw, FP_MSKS_FLD, and FP_STKY_FLD.

Referenced by fpsetmask(), fpsetprec(), and fpsetround().

fpgetmask()

static __inline fp_except_t fpgetmask ( void  )

static

References __fnstcw, FP_MSKS_FLD, and FP_MSKS_OFF.

fpgetprec()

OLM_DLLEXPORT fp_prec_t fpgetprec

(

void

)

References __fnstcw, FP_PRC_FLD, and FP_PRC_OFF.

Referenced by cbrtl().

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fpgetround()

static __inline fp_rnd_t fpgetround ( void  )

static

References __fnstcw, FP_RND_FLD, and FP_RND_OFF.

fpgetsticky()

static __inline fp_except_t fpgetsticky ( void  )

static

References __fnstsw, fp_except_t, FP_STKY_FLD, and FP_STKY_OFF.

Referenced by fpresetsticky().

fpresetsticky()

static __inline fp_except_t fpresetsticky ( fp_except_t  _m )

static

References __fldenv, __fnclex, __fnstenv, fp_except_t, FP_STKY_FLD, FP_STKY_OFF, and fpgetsticky().

fpsetmask()

static __inline fp_except_t fpsetmask ( fp_except_t  _m )

static

References __fnldcw(), __fnstcw, fp_except_t, FP_MSKS_FLD, and FP_MSKS_OFF.

fpsetprec()

OLM_DLLEXPORT fp_prec_t fpsetprec

(

fp_prec_t

_m

)

References __fnldcw(), __fnstcw, FP_PRC_FLD, and FP_PRC_OFF.

Referenced by cbrtl().

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fpsetround()

static __inline fp_rnd_t fpsetround ( fp_rnd_t  _m )

static

References __fnldcw(), __fnstcw, FP_RND_FLD, and FP_RND_OFF.