static uint16_t convert_float(uint16_t adcValue)
{
    float exponent = (adcValue + 1) / 128.0f;
    float result = 256.0f * powf(2.0f, exponent) - 1.0f;
    return (uint16_t)(result + 0.5f);
}

void setup()
{
    // put your setup code here, to run once:
    volatile uint16_t result = 0;
    for (uint16_t i = 0; i < 1024; i++) {
        result += convert_float(i);
    }
}

void loop()
{
  // put your main code here, to run repeatedly:

}