#ifndef _IEEE_FP_H_
|
#ifndef _IEEE_FP_H_
|
#define _IEEE_FP_H_
|
#define _IEEE_FP_H_
|
|
|
#include "_ansi.h"
|
#include "_ansi.h"
|
|
|
#include <machine/ieeefp.h>
|
#include <machine/ieeefp.h>
|
|
|
_BEGIN_STD_C
|
_BEGIN_STD_C
|
|
|
/* FIXME FIXME FIXME:
|
/* FIXME FIXME FIXME:
|
Neither of __ieee_{float,double}_shape_tape seem to be used anywhere
|
Neither of __ieee_{float,double}_shape_tape seem to be used anywhere
|
except in libm/test. If that is the case, please delete these from here.
|
except in libm/test. If that is the case, please delete these from here.
|
If that is not the case, please insert documentation here describing why
|
If that is not the case, please insert documentation here describing why
|
they're needed. */
|
they're needed. */
|
|
|
#ifdef __IEEE_BIG_ENDIAN
|
#ifdef __IEEE_BIG_ENDIAN
|
|
|
typedef union
|
typedef union
|
{
|
{
|
double value;
|
double value;
|
struct
|
struct
|
{
|
{
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
unsigned int exponent: 11;
|
unsigned int exponent: 11;
|
unsigned int fraction0:4;
|
unsigned int fraction0:4;
|
unsigned int fraction1:16;
|
unsigned int fraction1:16;
|
unsigned int fraction2:16;
|
unsigned int fraction2:16;
|
unsigned int fraction3:16;
|
unsigned int fraction3:16;
|
|
|
} number;
|
} number;
|
struct
|
struct
|
{
|
{
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
unsigned int exponent: 11;
|
unsigned int exponent: 11;
|
unsigned int quiet:1;
|
unsigned int quiet:1;
|
unsigned int function0:3;
|
unsigned int function0:3;
|
unsigned int function1:16;
|
unsigned int function1:16;
|
unsigned int function2:16;
|
unsigned int function2:16;
|
unsigned int function3:16;
|
unsigned int function3:16;
|
} nan;
|
} nan;
|
struct
|
struct
|
{
|
{
|
unsigned long msw;
|
unsigned long msw;
|
unsigned long lsw;
|
unsigned long lsw;
|
} parts;
|
} parts;
|
long aslong[2];
|
long aslong[2];
|
} __ieee_double_shape_type;
|
} __ieee_double_shape_type;
|
|
|
#endif
|
#endif
|
|
|
#ifdef __IEEE_LITTLE_ENDIAN
|
#ifdef __IEEE_LITTLE_ENDIAN
|
|
|
typedef union
|
typedef union
|
{
|
{
|
double value;
|
double value;
|
struct
|
struct
|
{
|
{
|
#ifdef __SMALL_BITFIELDS
|
#ifdef __SMALL_BITFIELDS
|
unsigned int fraction3:16;
|
unsigned int fraction3:16;
|
unsigned int fraction2:16;
|
unsigned int fraction2:16;
|
unsigned int fraction1:16;
|
unsigned int fraction1:16;
|
unsigned int fraction0: 4;
|
unsigned int fraction0: 4;
|
#else
|
#else
|
unsigned int fraction1:32;
|
unsigned int fraction1:32;
|
unsigned int fraction0:20;
|
unsigned int fraction0:20;
|
#endif
|
#endif
|
unsigned int exponent :11;
|
unsigned int exponent :11;
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
} number;
|
} number;
|
struct
|
struct
|
{
|
{
|
#ifdef __SMALL_BITFIELDS
|
#ifdef __SMALL_BITFIELDS
|
unsigned int function3:16;
|
unsigned int function3:16;
|
unsigned int function2:16;
|
unsigned int function2:16;
|
unsigned int function1:16;
|
unsigned int function1:16;
|
unsigned int function0:3;
|
unsigned int function0:3;
|
#else
|
#else
|
unsigned int function1:32;
|
unsigned int function1:32;
|
unsigned int function0:19;
|
unsigned int function0:19;
|
#endif
|
#endif
|
unsigned int quiet:1;
|
unsigned int quiet:1;
|
unsigned int exponent: 11;
|
unsigned int exponent: 11;
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
} nan;
|
} nan;
|
struct
|
struct
|
{
|
{
|
unsigned long lsw;
|
unsigned long lsw;
|
unsigned long msw;
|
unsigned long msw;
|
} parts;
|
} parts;
|
|
|
long aslong[2];
|
long aslong[2];
|
|
|
} __ieee_double_shape_type;
|
} __ieee_double_shape_type;
|
|
|
#endif
|
#endif
|
|
|
#ifdef __IEEE_BIG_ENDIAN
|
#ifdef __IEEE_BIG_ENDIAN
|
|
|
typedef union
|
typedef union
|
{
|
{
|
float value;
|
float value;
|
struct
|
struct
|
{
|
{
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
unsigned int exponent: 8;
|
unsigned int exponent: 8;
|
unsigned int fraction0: 7;
|
unsigned int fraction0: 7;
|
unsigned int fraction1: 16;
|
unsigned int fraction1: 16;
|
} number;
|
} number;
|
struct
|
struct
|
{
|
{
|
unsigned int sign:1;
|
unsigned int sign:1;
|
unsigned int exponent:8;
|
unsigned int exponent:8;
|
unsigned int quiet:1;
|
unsigned int quiet:1;
|
unsigned int function0:6;
|
unsigned int function0:6;
|
unsigned int function1:16;
|
unsigned int function1:16;
|
} nan;
|
} nan;
|
long p1;
|
long p1;
|
|
|
} __ieee_float_shape_type;
|
} __ieee_float_shape_type;
|
|
|
#endif
|
#endif
|
|
|
#ifdef __IEEE_LITTLE_ENDIAN
|
#ifdef __IEEE_LITTLE_ENDIAN
|
|
|
typedef union
|
typedef union
|
{
|
{
|
float value;
|
float value;
|
struct
|
struct
|
{
|
{
|
unsigned int fraction0: 7;
|
unsigned int fraction0: 7;
|
unsigned int fraction1: 16;
|
unsigned int fraction1: 16;
|
unsigned int exponent: 8;
|
unsigned int exponent: 8;
|
unsigned int sign : 1;
|
unsigned int sign : 1;
|
} number;
|
} number;
|
struct
|
struct
|
{
|
{
|
unsigned int function1:16;
|
unsigned int function1:16;
|
unsigned int function0:6;
|
unsigned int function0:6;
|
unsigned int quiet:1;
|
unsigned int quiet:1;
|
unsigned int exponent:8;
|
unsigned int exponent:8;
|
unsigned int sign:1;
|
unsigned int sign:1;
|
} nan;
|
} nan;
|
long p1;
|
long p1;
|
|
|
} __ieee_float_shape_type;
|
} __ieee_float_shape_type;
|
|
|
#endif
|
#endif
|
|
|
|
|
|
|
|
|
|
|
/* FLOATING ROUNDING */
|
/* FLOATING ROUNDING */
|
|
|
typedef int fp_rnd;
|
typedef int fp_rnd;
|
#define FP_RN 0 /* Round to nearest */
|
#define FP_RN 0 /* Round to nearest */
|
#define FP_RM 1 /* Round down */
|
#define FP_RM 1 /* Round down */
|
#define FP_RP 2 /* Round up */
|
#define FP_RP 2 /* Round up */
|
#define FP_RZ 3 /* Round to zero (trunate) */
|
#define FP_RZ 3 /* Round to zero (trunate) */
|
|
|
fp_rnd _EXFUN(fpgetround,(void));
|
fp_rnd _EXFUN(fpgetround,(void));
|
fp_rnd _EXFUN(fpsetround, (fp_rnd));
|
fp_rnd _EXFUN(fpsetround, (fp_rnd));
|
|
|
/* EXCEPTIONS */
|
/* EXCEPTIONS */
|
|
|
typedef int fp_except;
|
typedef int fp_except;
|
#define FP_X_INV 0x10 /* Invalid operation */
|
#define FP_X_INV 0x10 /* Invalid operation */
|
#define FP_X_DX 0x80 /* Divide by zero */
|
#define FP_X_DX 0x80 /* Divide by zero */
|
#define FP_X_OFL 0x04 /* Overflow exception */
|
#define FP_X_OFL 0x04 /* Overflow exception */
|
#define FP_X_UFL 0x02 /* Underflow exception */
|
#define FP_X_UFL 0x02 /* Underflow exception */
|
#define FP_X_IMP 0x01 /* imprecise exception */
|
#define FP_X_IMP 0x01 /* imprecise exception */
|
|
|
fp_except _EXFUN(fpgetmask,(void));
|
fp_except _EXFUN(fpgetmask,(void));
|
fp_except _EXFUN(fpsetmask,(fp_except));
|
fp_except _EXFUN(fpsetmask,(fp_except));
|
fp_except _EXFUN(fpgetsticky,(void));
|
fp_except _EXFUN(fpgetsticky,(void));
|
fp_except _EXFUN(fpsetsticky, (fp_except));
|
fp_except _EXFUN(fpsetsticky, (fp_except));
|
|
|
/* INTEGER ROUNDING */
|
/* INTEGER ROUNDING */
|
|
|
typedef int fp_rdi;
|
typedef int fp_rdi;
|
#define FP_RDI_TOZ 0 /* Round to Zero */
|
#define FP_RDI_TOZ 0 /* Round to Zero */
|
#define FP_RDI_RD 1 /* Follow float mode */
|
#define FP_RDI_RD 1 /* Follow float mode */
|
|
|
fp_rdi _EXFUN(fpgetroundtoi,(void));
|
fp_rdi _EXFUN(fpgetroundtoi,(void));
|
fp_rdi _EXFUN(fpsetroundtoi,(fp_rdi));
|
fp_rdi _EXFUN(fpsetroundtoi,(fp_rdi));
|
|
|
#undef isnan
|
#undef isnan
|
#undef isinf
|
#undef isinf
|
|
|
int _EXFUN(isnan, (double));
|
int _EXFUN(isnan, (double));
|
int _EXFUN(isinf, (double));
|
int _EXFUN(isinf, (double));
|
int _EXFUN(finite, (double));
|
int _EXFUN(finite, (double));
|
|
|
|
|
|
|
int _EXFUN(isnanf, (float));
|
int _EXFUN(isnanf, (float));
|
int _EXFUN(isinff, (float));
|
int _EXFUN(isinff, (float));
|
int _EXFUN(finitef, (float));
|
int _EXFUN(finitef, (float));
|
|
|
#define __IEEE_DBL_EXPBIAS 1023
|
#define __IEEE_DBL_EXPBIAS 1023
|
#define __IEEE_FLT_EXPBIAS 127
|
#define __IEEE_FLT_EXPBIAS 127
|
|
|
#define __IEEE_DBL_EXPLEN 11
|
#define __IEEE_DBL_EXPLEN 11
|
#define __IEEE_FLT_EXPLEN 8
|
#define __IEEE_FLT_EXPLEN 8
|
|
|
|
|
#define __IEEE_DBL_FRACLEN (64 - (__IEEE_DBL_EXPLEN + 1))
|
#define __IEEE_DBL_FRACLEN (64 - (__IEEE_DBL_EXPLEN + 1))
|
#define __IEEE_FLT_FRACLEN (32 - (__IEEE_FLT_EXPLEN + 1))
|
#define __IEEE_FLT_FRACLEN (32 - (__IEEE_FLT_EXPLEN + 1))
|
|
|
#define __IEEE_DBL_MAXPOWTWO ((double)(1L << 32 - 2) * (1L << (32-11) - 32 + 1))
|
#define __IEEE_DBL_MAXPOWTWO ((double)(1L << 32 - 2) * (1L << (32-11) - 32 + 1))
|
#define __IEEE_FLT_MAXPOWTWO ((float)(1L << (32-8) - 1))
|
#define __IEEE_FLT_MAXPOWTWO ((float)(1L << (32-8) - 1))
|
|
|
#define __IEEE_DBL_NAN_EXP 0x7ff
|
#define __IEEE_DBL_NAN_EXP 0x7ff
|
#define __IEEE_FLT_NAN_EXP 0xff
|
#define __IEEE_FLT_NAN_EXP 0xff
|
|
|
#ifndef __ieeefp_isnanf
|
#ifndef __ieeefp_isnanf
|
#define __ieeefp_isnanf(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
|
#define __ieeefp_isnanf(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
|
((*(long *)&(x) & 0x007fffffL)!=0000000000L))
|
((*(long *)&(x) & 0x007fffffL)!=0000000000L))
|
#endif
|
#endif
|
#define isnanf(x) __ieeefp_isnanf(x)
|
#define isnanf(x) __ieeefp_isnanf(x)
|
|
|
#ifndef __ieeefp_isinff
|
#ifndef __ieeefp_isinff
|
#define __ieeefp_isinff(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
|
#define __ieeefp_isinff(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
|
((*(long *)&(x) & 0x007fffffL)==0000000000L))
|
((*(long *)&(x) & 0x007fffffL)==0000000000L))
|
#endif
|
#endif
|
#define isinff(x) __ieeefp_isinff(x)
|
#define isinff(x) __ieeefp_isinff(x)
|
|
|
#ifndef __ieeefp_finitef
|
#ifndef __ieeefp_finitef
|
#define __ieeefp_finitef(x) (((*(long *)&(x) & 0x7f800000L)!=0x7f800000L))
|
#define __ieeefp_finitef(x) (((*(long *)&(x) & 0x7f800000L)!=0x7f800000L))
|
#endif
|
#endif
|
#define finitef(x) __ieeefp_finitef(x)
|
#define finitef(x) __ieeefp_finitef(x)
|
|
|
#ifdef _DOUBLE_IS_32BITS
|
#ifdef _DOUBLE_IS_32BITS
|
#undef __IEEE_DBL_EXPBIAS
|
#undef __IEEE_DBL_EXPBIAS
|
#define __IEEE_DBL_EXPBIAS __IEEE_FLT_EXPBIAS
|
#define __IEEE_DBL_EXPBIAS __IEEE_FLT_EXPBIAS
|
|
|
#undef __IEEE_DBL_EXPLEN
|
#undef __IEEE_DBL_EXPLEN
|
#define __IEEE_DBL_EXPLEN __IEEE_FLT_EXPLEN
|
#define __IEEE_DBL_EXPLEN __IEEE_FLT_EXPLEN
|
|
|
#undef __IEEE_DBL_FRACLEN
|
#undef __IEEE_DBL_FRACLEN
|
#define __IEEE_DBL_FRACLEN __IEEE_FLT_FRACLEN
|
#define __IEEE_DBL_FRACLEN __IEEE_FLT_FRACLEN
|
|
|
#undef __IEEE_DBL_MAXPOWTWO
|
#undef __IEEE_DBL_MAXPOWTWO
|
#define __IEEE_DBL_MAXPOWTWO __IEEE_FLT_MAXPOWTWO
|
#define __IEEE_DBL_MAXPOWTWO __IEEE_FLT_MAXPOWTWO
|
|
|
#undef __IEEE_DBL_NAN_EXP
|
#undef __IEEE_DBL_NAN_EXP
|
#define __IEEE_DBL_NAN_EXP __IEEE_FLT_NAN_EXP
|
#define __IEEE_DBL_NAN_EXP __IEEE_FLT_NAN_EXP
|
|
|
#undef __ieee_double_shape_type
|
#undef __ieee_double_shape_type
|
#define __ieee_double_shape_type __ieee_float_shape_type
|
#define __ieee_double_shape_type __ieee_float_shape_type
|
|
|
#endif /* _DOUBLE_IS_32BITS */
|
#endif /* _DOUBLE_IS_32BITS */
|
|
|
_END_STD_C
|
_END_STD_C
|
|
|
#endif /* _IEEE_FP_H_ */
|
#endif /* _IEEE_FP_H_ */
|
|
|
