Half float to float and viceversa... No infinity No NaN managed

floatToHalf.cpp

uint16_t convertFloatToHalf(float in) {
    if (in == 0){
        return 0;
    }
    F32 f;
    f.value = in;
    F16 hf;
    /**
     * Use sign
     */
    hf.bit.sign = f.bit.sign;
    hf.bit.exponent = f.bit.exponent - 112u; //  (127u))+(15u));
    hf.bit.mantissa = (f.bit.mantissa >> 13u);
    return hf.hfvalue;
}

float convertHalfToFloat(uint16_t in) {
    if (in == 0  ){
        return in;
    }
    F32 f;
    F16 hf;
    hf.hfvalue = in;
    /**
     * Use sign
     */
    f.bit.sign = hf.bit.sign;
    f.bit.exponent = hf.bit.exponent + 112u;  // - (15u))+(127u);
    f.bit.mantissa = (hf.bit.mantissa << 13u);
    return f.value;
}

floatToHalf.h

typedef union
{
    struct
    {
        unsigned int mantissa:23;
        unsigned int exponent:8;
        unsigned int sign:1;
    }bit;
    uint32_t iv;
    float value;
}F32;

typedef union
{
    struct
    {
        unsigned int mantissa:10;
        unsigned int exponent:5;
        unsigned int sign:1;
        unsigned int unused:16;
    }bit;
    float value;
    uint16_t hfvalue;
}F16;

uint16_t convertFloatToHalf(float in);
float convertHalfToFloat(uint16_t in);