text: #ifndef _AVR_TYPES_H
  #define _AVR_TYPES_H
  
  #include <stdint.h> 
  
  namespace atm8
  {
    using reg = volatile uint8_t &;
    using pin = uint8_t;
  }
   
  namespace bit
  {
  
  inline void set (volatile uint8_t & port, uint8_t bit)
  {
    port |= _BV (bit);
  }
  
  inline void clear (volatile uint8_t & port, uint8_t bit)
  {
    port &= ~ _BV (bit);
  }
  
  } 
  
  #endif /* _AVR_TYPES_H */
  