mirror of https://github.com/acidanthera/audk.git
230 lines
7.2 KiB
C
230 lines
7.2 KiB
C
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* from: @(#)fdlibm.h 5.1 93/09/24
|
|
* $NetBSD: math_private.h,v 1.12 2005/07/21 12:55:58 christos Exp $
|
|
*/
|
|
|
|
#ifndef _MATH_PRIVATE_H_
|
|
#define _MATH_PRIVATE_H_
|
|
|
|
#include <sys/types.h>
|
|
|
|
/* The original fdlibm code used statements like:
|
|
n0 = ((*(int*)&one)>>29)^1; * index of high word *
|
|
ix0 = *(n0+(int*)&x); * high word of x *
|
|
ix1 = *((1-n0)+(int*)&x); * low word of x *
|
|
to dig two 32 bit words out of the 64 bit IEEE floating point
|
|
value. That is non-ANSI, and, moreover, the gcc instruction
|
|
scheduler gets it wrong. We instead use the following macros.
|
|
Unlike the original code, we determine the endianness at compile
|
|
time, not at run time; I don't see much benefit to selecting
|
|
endianness at run time. */
|
|
|
|
/* A union which permits us to convert between a double and two 32 bit
|
|
ints. */
|
|
|
|
/*
|
|
* The ARM ports are little endian except for the FPA word order which is
|
|
* big endian.
|
|
*/
|
|
|
|
#if (BYTE_ORDER == BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
|
|
|
|
typedef union
|
|
{
|
|
double value;
|
|
struct
|
|
{
|
|
u_int32_t msw;
|
|
u_int32_t lsw;
|
|
} parts;
|
|
} ieee_double_shape_type;
|
|
|
|
#endif
|
|
|
|
#if (BYTE_ORDER == LITTLE_ENDIAN) && \
|
|
!(defined(__arm__) && !defined(__VFP_FP__))
|
|
|
|
typedef union
|
|
{
|
|
double value;
|
|
struct
|
|
{
|
|
u_int32_t lsw;
|
|
u_int32_t msw;
|
|
} parts;
|
|
} ieee_double_shape_type;
|
|
|
|
#endif
|
|
|
|
/* Get two 32 bit ints from a double. */
|
|
|
|
#define EXTRACT_WORDS(ix0,ix1,d) \
|
|
do { \
|
|
ieee_double_shape_type ew_u; \
|
|
ew_u.value = (d); \
|
|
(ix0) = ew_u.parts.msw; \
|
|
(ix1) = ew_u.parts.lsw; \
|
|
} while (0)
|
|
|
|
/* Get the more significant 32 bit int from a double. */
|
|
|
|
#define GET_HIGH_WORD(i,d) \
|
|
do { \
|
|
ieee_double_shape_type gh_u; \
|
|
gh_u.value = (d); \
|
|
(i) = gh_u.parts.msw; \
|
|
} while (0)
|
|
|
|
/* Get the less significant 32 bit int from a double. */
|
|
|
|
#define GET_LOW_WORD(i,d) \
|
|
do { \
|
|
ieee_double_shape_type gl_u; \
|
|
gl_u.value = (d); \
|
|
(i) = gl_u.parts.lsw; \
|
|
} while (0)
|
|
|
|
/* Set a double from two 32 bit ints. */
|
|
|
|
#define INSERT_WORDS(d,ix0,ix1) \
|
|
do { \
|
|
ieee_double_shape_type iw_u; \
|
|
iw_u.parts.msw = (ix0); \
|
|
iw_u.parts.lsw = (ix1); \
|
|
(d) = iw_u.value; \
|
|
} while (0)
|
|
|
|
/* Set the more significant 32 bits of a double from an int. */
|
|
|
|
#define SET_HIGH_WORD(d,v) \
|
|
do { \
|
|
ieee_double_shape_type sh_u; \
|
|
sh_u.value = (d); \
|
|
sh_u.parts.msw = (v); \
|
|
(d) = sh_u.value; \
|
|
} while (0)
|
|
|
|
/* Set the less significant 32 bits of a double from an int. */
|
|
|
|
#define SET_LOW_WORD(d,v) \
|
|
do { \
|
|
ieee_double_shape_type sl_u; \
|
|
sl_u.value = (d); \
|
|
sl_u.parts.lsw = (v); \
|
|
(d) = sl_u.value; \
|
|
} while (0)
|
|
|
|
/* A union which permits us to convert between a float and a 32 bit
|
|
int. */
|
|
|
|
typedef union
|
|
{
|
|
float value;
|
|
u_int32_t word;
|
|
} ieee_float_shape_type;
|
|
|
|
/* Get a 32 bit int from a float. */
|
|
|
|
#define GET_FLOAT_WORD(i,d) \
|
|
do { \
|
|
ieee_float_shape_type gf_u; \
|
|
gf_u.value = (d); \
|
|
(i) = gf_u.word; \
|
|
} while (0)
|
|
|
|
/* Set a float from a 32 bit int. */
|
|
|
|
#define SET_FLOAT_WORD(d,i) \
|
|
do { \
|
|
ieee_float_shape_type sf_u; \
|
|
sf_u.word = (i); \
|
|
(d) = sf_u.value; \
|
|
} while (0)
|
|
|
|
/* ieee style elementary functions */
|
|
extern double __ieee754_sqrt (double);
|
|
extern double __ieee754_acos (double);
|
|
extern double __ieee754_acosh (double);
|
|
extern double __ieee754_log (double);
|
|
extern double __ieee754_atanh (double);
|
|
extern double __ieee754_asin (double);
|
|
extern double __ieee754_atan2 (double, double);
|
|
extern double __ieee754_exp (double);
|
|
extern double __ieee754_cosh (double);
|
|
extern double __ieee754_fmod (double, double);
|
|
extern double __ieee754_pow (double, double);
|
|
extern double __ieee754_lgamma_r (double, int *);
|
|
extern double __ieee754_gamma_r (double, int *);
|
|
extern double __ieee754_lgamma (double);
|
|
extern double __ieee754_gamma (double);
|
|
extern double __ieee754_log10 (double);
|
|
extern double __ieee754_log2 (double);
|
|
extern double __ieee754_sinh (double);
|
|
extern double __ieee754_hypot (double, double);
|
|
extern double __ieee754_j0 (double);
|
|
extern double __ieee754_j1 (double);
|
|
extern double __ieee754_y0 (double);
|
|
extern double __ieee754_y1 (double);
|
|
extern double __ieee754_jn (int, double);
|
|
extern double __ieee754_yn (int, double);
|
|
extern double __ieee754_remainder (double, double);
|
|
extern int __ieee754_rem_pio2 (double,double*);
|
|
extern double __ieee754_scalb (double, double);
|
|
|
|
/* fdlibm kernel function */
|
|
extern double __kernel_standard (double, double, int);
|
|
extern double __kernel_sin (double, double, int);
|
|
extern double __kernel_cos (double, double);
|
|
extern double __kernel_tan (double, double, int);
|
|
extern int __kernel_rem_pio2 (double*,double*,int,int,int,const int*);
|
|
|
|
|
|
///* ieee style elementary float functions */
|
|
//extern float __ieee754_sqrtf __P((float));
|
|
//extern float __ieee754_acosf __P((float));
|
|
//extern float __ieee754_acoshf __P((float));
|
|
//extern float __ieee754_logf __P((float));
|
|
//extern float __ieee754_atanhf __P((float));
|
|
//extern float __ieee754_asinf __P((float));
|
|
//extern float __ieee754_atan2f __P((float,float));
|
|
//extern float __ieee754_expf __P((float));
|
|
//extern float __ieee754_coshf __P((float));
|
|
//extern float __ieee754_fmodf __P((float,float));
|
|
//extern float __ieee754_powf __P((float,float));
|
|
//extern float __ieee754_lgammaf_r __P((float,int *));
|
|
//extern float __ieee754_gammaf_r __P((float,int *));
|
|
//extern float __ieee754_lgammaf __P((float));
|
|
//extern float __ieee754_gammaf __P((float));
|
|
//extern float __ieee754_log10f __P((float));
|
|
//extern float __ieee754_log2f __P((float));
|
|
//extern float __ieee754_sinhf __P((float));
|
|
//extern float __ieee754_hypotf __P((float,float));
|
|
//extern float __ieee754_j0f __P((float));
|
|
//extern float __ieee754_j1f __P((float));
|
|
//extern float __ieee754_y0f __P((float));
|
|
//extern float __ieee754_y1f __P((float));
|
|
//extern float __ieee754_jnf __P((int,float));
|
|
//extern float __ieee754_ynf __P((int,float));
|
|
//extern float __ieee754_remainderf __P((float,float));
|
|
//extern int __ieee754_rem_pio2f __P((float,float*));
|
|
//extern float __ieee754_scalbf __P((float,float));
|
|
|
|
///* float versions of fdlibm kernel functions */
|
|
//extern float __kernel_sinf __P((float,float,int));
|
|
//extern float __kernel_cosf __P((float,float));
|
|
//extern float __kernel_tanf __P((float,float,int));
|
|
//extern int __kernel_rem_pio2f __P((float*,float*,int,int,int,const int*));
|
|
|
|
#endif /* _MATH_PRIVATE_H_ */
|