#include <p18F458.h>
void EE_WRT(void);
unsigned char EE_READ(void);
void Delay(unsigned int itime);
void main()
{
   unsigned char x;
   TRISB=0;		
   EEADR=0x0;		
   EEDATA='Y';		
   EE_WRT();  
   EEADR=0x1;
   EEDATA='E';
   EE_WRT(); 
   EEADR=0x2;
   EEDATA='S';
   EE_WRT();	
   EECON1bits.WREN=0;	
   EECON1bits.RD=1;	
   EEADR =0x0;		
   x=EE_READ();		
   PORTB=x;		
   Delay(250);
   EEADR =0x1;		
   x=EE_READ();
   PORTB=x;		
   Delay(250);
   EEADR =0x2;		
   x=EE_READ();
   PORTB=x;		
   while(1);
}
void EE_WRT()
{
   EECON1bits.EEPGD=0;
   EECON1bits.CFGS=0;
   EECON1bits.WREN=1;	
   INTCONbits.GIE=0;	
   EECON2=0x55;		
   EECON2=0xAA;
   EECON1bits.WR=1;
   INTCONbits.GIE=1;
   while(!PIR2bits.EEIF);
   PIR2bits.EEIF=0;
}	
unsigned char EE_READ()
{
   EECON1bits.EEPGD=0;
   EECON1bits.CFGS=0;
   EECON1bits.RD=1; 	
   return(EEDATA); 	
}