EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / StdLib / LibC / Math / math_private.h

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