typedef union stat {
  int word;
  struct {
      int sendKey     : 1,
          errorEprom  : 1,
          modemReset  : 1,
	  enterKey    : 1,
	  addrDev     : 4;
	};
} status;	

status CurrStatus;
status FixedStatus;

   currStatus.word = 0;
...
   currStatus.sendKey = true;
...
   currStatus.errorEprom = false;
...
   if(currStatus.enterKey) {
   ...
   }
...
   currStatus.addrDev = 9;
...
   if(currStatus.addrDev == 9 {
    ...
   }
...
   fixedStatus |= currStatus;
...
[\pre]