libm_new.h

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/***********************************************************************************/
/***********************************************************************************/
 
#ifndef __LIBM_NEW_H__
#define __LIBM_NEW_H__
 
// Defines, protos, etc for *new* math funcs updated by AMD 11/2008
// Old files will continue to include libm_util.h, libm.h, libm_inlines.h
// until such time as these have all been refreshed w/ new versions.
 
typedef float F32;
typedef unsigned int U32;
 
typedef double F64;
typedef unsigned long long U64;
 
union UT32_ 
{
    F32 f32;
    U32 u32;
};
 
union UT64_ 
{
    F64 f64;
    U64 u64;
    
    F32 f32[2];
    U32 u32[2];
};
 
typedef union UT32_ UT32;
typedef union UT64_ UT64;
 
#define SIGN_MASK_32        0x80000000
#define MANTISSA_MASK_32    0x007fffff
#define EXPONENT_MASK_32    0x7f800000
#define QNAN_MASK_32        0x00400000
 
#define INF_POS_32          0x7f800000
#define INF_NEG_32          0xff800000
#define QNAN_POS_32         0x7fc00000
#define QNAN_NEG_32         0xffc00000
#define IND_32              0xffc00000
 
#define EXPONENT_FULL_32    0x7f800000
#define SIGN_SET_32         0x80000000
#define QNAN_SET_32         0x00400000
 
#define INF_POS_64          0x7ff0000000000000
#define INF_NEG_64          0xfff0000000000000
 
#define MANTISSA_MASK_64    0x000fffffffffffff
#define SIGN_MASK_64        0x8000000000000000
#define IND_64              0xfff8000000000000
#define QNAN_MASK_64        0x0008000000000000
 
// constants for 'flags' argument of _handle_error and _handle_errorf
#define AMD_F_INEXACT     0x00000010
#define AMD_F_OVERFLOW    0x00000001
#define AMD_F_UNDERFLOW   0x00000002
#define AMD_F_DIVBYZERO   0x00000004
#define AMD_F_INVALID     0x00000008
 
// define the Microsoft specific error handling routine
 
// Note to mainainers: 
// These prototypes may appear, at first glance, to differ from the versions
// declared in libm_inlines.h and defined in libm_error.c.  The third 
// parameter appears to have changed type from unsigned long to unsigned long
// long.  In fact they are the same because in both of the aforementioned 
// files, long has been #defined to __int64 in a most cowardly fashion.  This
// disgusts me.  The buck stops here. - MAS
 
double _handle_error(
        char *fname,
        int opcode,
        unsigned long long value,
        int type,
        int flags,
        int error,
        double arg1,
        double arg2,
        int nargs
        );
float _handle_errorf(
        char *fname,
        int opcode,
        unsigned long long value,
        int type,
        int flags,
        int error,
        float arg1,
        float arg2,
        int nargs
        );
 
#endif // __LIBM_NEW_H