ORG	0000H
	GOTO	MAIN		
	ORG	0008H		
	BTFSS INTCON3,INT1IF	
					
	RETFIE			
	GOTO  INT1_ISR		
	ORG	00100H	
MAIN	BCF  TRISB,7	
	BSF  TRISB,INT1	
	BSF  INTCON3,INT1IE	
	BCF INTCON2,INTEDG1	
					
	BSF INTCON,GIE		
OVER	BRA OVER			
INT1_ISR
	ORG 200H
	BTG PORTB,7		
	BCF INTCON3,INT1IF 
	RETFIE			
	END