IceFPU.h

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// Include Guard
#ifndef __ICEFPU_H__
#define __ICEFPU_H__

    #define SIGN_BITMASK            0x80000000

    #define IR(x)                   ((udword&)(x))

    #define SIR(x)                  ((sdword&)(x))

    #define AIR(x)                  (IR(x)&0x7fffffff)

    #define FR(x)                   ((float&)(x))
    
    inline_ bool IsNAN(float value)             { return (IR(value)&0x7f800000) == 0x7f800000;  }
    inline_ bool IsIndeterminate(float value)   { return IR(value) == 0xffc00000;               }
    inline_ bool IsPlusInf(float value)         { return IR(value) == 0x7f800000;               }
    inline_ bool IsMinusInf(float value)        { return IR(value) == 0xff800000;               }

    inline_ bool IsValidFloat(float value)
    {
        if(IsNAN(value))            return false;
        if(IsIndeterminate(value))  return false;
        if(IsPlusInf(value))        return false;
        if(IsMinusInf(value))       return false;
        return true;
    }

    #define CHECK_VALID_FLOAT(x)    OPASSERT(IsValidFloat(x));


#endif // __ICEFPU_H__