bcd.h

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#ifndef BCD_H
#define BCD_H

struct bcd_t {
  bcd_t() : m_value(0) {}

  bcd_t(uint8_t value)
  {
    uint8_t high = 0;
    uint8_t low = value;
    while (low > 9) {
      high += 0x10;
      low -= 10;
    }
    m_value = high + low;
  }

  operator uint8_t()
  {
    uint8_t high = (m_value & 0xf0);
    uint8_t low = (m_value & 0x0f);
    return ((high >> 1) + (high >> 3) + low);
  }

private:
  uint8_t m_value;
} __attribute__((packed));


#endif