global.h

extern void delay (unsigned int us);

#ifndef cbi

#define cbi(sfr, bit)     (_SFR_BYTE(sfr) &= ~_BV(bit)) 

#endif

#ifndef sbi

#define sbi(sfr, bit)     (_SFR_BYTE(sfr) |= _BV(bit))  

#endif

typedef union conver_ {

  unsigned long dw;

  unsigned int w[2];

  unsigned char b[4];

} CONVERTDW;

typedef union conver2_ {

  unsigned int w;

  unsigned char b[2];

} CONVERTW;