diff options
Diffstat (limited to 'newlib/libc/include/ieeefp.h')
| -rw-r--r-- | newlib/libc/include/ieeefp.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/newlib/libc/include/ieeefp.h b/newlib/libc/include/ieeefp.h deleted file mode 100644 index 970ea4543..000000000 --- a/newlib/libc/include/ieeefp.h +++ /dev/null @@ -1,245 +0,0 @@ -#ifndef _IEEE_FP_H_ -#define _IEEE_FP_H_ - -#include "_ansi.h" - -#include <machine/ieeefp.h> - -_BEGIN_STD_C - -/* FIXME FIXME FIXME: - 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. - If that is not the case, please insert documentation here describing why - they're needed. */ - -#ifdef __IEEE_BIG_ENDIAN - -typedef union -{ - double value; - struct - { - unsigned int sign : 1; - unsigned int exponent: 11; - unsigned int fraction0:4; - unsigned int fraction1:16; - unsigned int fraction2:16; - unsigned int fraction3:16; - - } number; - struct - { - unsigned int sign : 1; - unsigned int exponent: 11; - unsigned int quiet:1; - unsigned int function0:3; - unsigned int function1:16; - unsigned int function2:16; - unsigned int function3:16; - } nan; - struct - { - unsigned long msw; - unsigned long lsw; - } parts; - long aslong[2]; -} __ieee_double_shape_type; - -#endif - -#ifdef __IEEE_LITTLE_ENDIAN - -typedef union -{ - double value; - struct - { -#ifdef __SMALL_BITFIELDS - unsigned int fraction3:16; - unsigned int fraction2:16; - unsigned int fraction1:16; - unsigned int fraction0: 4; -#else - unsigned int fraction1:32; - unsigned int fraction0:20; -#endif - unsigned int exponent :11; - unsigned int sign : 1; - } number; - struct - { -#ifdef __SMALL_BITFIELDS - unsigned int function3:16; - unsigned int function2:16; - unsigned int function1:16; - unsigned int function0:3; -#else - unsigned int function1:32; - unsigned int function0:19; -#endif - unsigned int quiet:1; - unsigned int exponent: 11; - unsigned int sign : 1; - } nan; - struct - { - unsigned long lsw; - unsigned long msw; - } parts; - - long aslong[2]; - -} __ieee_double_shape_type; - -#endif - -#ifdef __IEEE_BIG_ENDIAN - -typedef union -{ - float value; - struct - { - unsigned int sign : 1; - unsigned int exponent: 8; - unsigned int fraction0: 7; - unsigned int fraction1: 16; - } number; - struct - { - unsigned int sign:1; - unsigned int exponent:8; - unsigned int quiet:1; - unsigned int function0:6; - unsigned int function1:16; - } nan; - long p1; - -} __ieee_float_shape_type; - -#endif - -#ifdef __IEEE_LITTLE_ENDIAN - -typedef union -{ - float value; - struct - { - unsigned int fraction0: 7; - unsigned int fraction1: 16; - unsigned int exponent: 8; - unsigned int sign : 1; - } number; - struct - { - unsigned int function1:16; - unsigned int function0:6; - unsigned int quiet:1; - unsigned int exponent:8; - unsigned int sign:1; - } nan; - long p1; - -} __ieee_float_shape_type; - -#endif - - - - - -/* FLOATING ROUNDING */ - -typedef int fp_rnd; -#define FP_RN 0 /* Round to nearest */ -#define FP_RM 1 /* Round down */ -#define FP_RP 2 /* Round up */ -#define FP_RZ 3 /* Round to zero (trunate) */ - -fp_rnd _EXFUN(fpgetround,(void)); -fp_rnd _EXFUN(fpsetround, (fp_rnd)); - -/* EXCEPTIONS */ - -typedef int fp_except; -#define FP_X_INV 0x10 /* Invalid operation */ -#define FP_X_DX 0x80 /* Divide by zero */ -#define FP_X_OFL 0x04 /* Overflow exception */ -#define FP_X_UFL 0x02 /* Underflow exception */ -#define FP_X_IMP 0x01 /* imprecise exception */ - -fp_except _EXFUN(fpgetmask,(void)); -fp_except _EXFUN(fpsetmask,(fp_except)); -fp_except _EXFUN(fpgetsticky,(void)); -fp_except _EXFUN(fpsetsticky, (fp_except)); - -/* INTEGER ROUNDING */ - -typedef int fp_rdi; -#define FP_RDI_TOZ 0 /* Round to Zero */ -#define FP_RDI_RD 1 /* Follow float mode */ - -fp_rdi _EXFUN(fpgetroundtoi,(void)); -fp_rdi _EXFUN(fpsetroundtoi,(fp_rdi)); - -int _EXFUN(isnan, (double)); -int _EXFUN(isinf, (double)); -int _EXFUN(finite, (double)); - - - -int _EXFUN(isnanf, (float)); -int _EXFUN(isinff, (float)); -int _EXFUN(finitef, (float)); - -#define __IEEE_DBL_EXPBIAS 1023 -#define __IEEE_FLT_EXPBIAS 127 - -#define __IEEE_DBL_EXPLEN 11 -#define __IEEE_FLT_EXPLEN 8 - - -#define __IEEE_DBL_FRACLEN (64 - (__IEEE_DBL_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_FLT_MAXPOWTWO ((float)(1L << (32-8) - 1)) - -#define __IEEE_DBL_NAN_EXP 0x7ff -#define __IEEE_FLT_NAN_EXP 0xff - - -#define isnanf(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \ - ((*(long *)&(x) & 0x007fffffL)!=0000000000L)) - -#define isinff(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \ - ((*(long *)&(x) & 0x007fffffL)==0000000000L)) - -#define finitef(x) (((*(long *)&(x) & 0x7f800000L)!=0x7f800000L)) - -#ifdef _DOUBLE_IS_32BITS -#undef __IEEE_DBL_EXPBIAS -#define __IEEE_DBL_EXPBIAS __IEEE_FLT_EXPBIAS - -#undef __IEEE_DBL_EXPLEN -#define __IEEE_DBL_EXPLEN __IEEE_FLT_EXPLEN - -#undef __IEEE_DBL_FRACLEN -#define __IEEE_DBL_FRACLEN __IEEE_FLT_FRACLEN - -#undef __IEEE_DBL_MAXPOWTWO -#define __IEEE_DBL_MAXPOWTWO __IEEE_FLT_MAXPOWTWO - -#undef __IEEE_DBL_NAN_EXP -#define __IEEE_DBL_NAN_EXP __IEEE_FLT_NAN_EXP - -#undef __ieee_double_shape_type -#define __ieee_double_shape_type __ieee_float_shape_type - -#endif /* _DOUBLE_IS_32BITS */ - -_END_STD_C - -#endif /* _IEEE_FP_H_ */ |