start: 
init: 
	clrf     PORTA          ; make sure port A output latches are low 
	clrf     PORTB          ; make sure port B output latches are low 
	bsf      STATUS,RP0     ; select memory bank 1 
	movlw 	 b'11111111'    ; set port A data direction to inputs 
	movwf 	 TRISA         
	movlw 	 b'00000000'    ; set port B data direction to outputs 
	movwf 	 TRISB          
	bcf      STATUS,RP0     ; select memory bank 0 
	goto     main 

main: 
	btfsc 	 PORTA, 0
	goto 	 flashled
	goto 	 main

flashled:
	movlw 	 b'11111111'    
	movwf	 PORTB
	call 	 wait1000ms
	call 	 wait1000ms
	movlw 	 b'00000000'    
	movwf	 PORTB
	call 	 wait1000ms
	
	btfsc    PORTA, 0
	goto 	 flashled 
	goto	 main

	END		        ; ends the program