Counter	DS.B 1
Entry:LDS   #RAMEnd+1        
	LDAA 	#$FF		
	STAA	DDRA			
	BSET  DDRB,%00010000	
	BCLR	DDRT,%10000000	
	CLR   Counter		
	LDAA 	#%01010010		
	STAA	PACTL			
	CLI
	LDD	#$FFF4 
	STD	PACN32		
	BCLR	PORTB,%00010000	
	BRA $				
PACA_ISR
	BSET	PORTB,%00010000	
	BSET	PAFLG,mPAFLG_PAOVF
	INC   Counter
	LDAA  Counter
	STAA	PORTA		
	LDD	#$FFF4 
	STD	PACN32		
	BCLR	PORTB,%00010000	
	RTI
	ORG $FFDC
	DC.W PACA_ISR	
	ORG   $FFFE
	DC.W  Entry