org	0h
	ljmp	main
	org	03h
	mov	P0,#00h
	reti
	org	13h
	mov	P2,#00h
	reti
	org	100h
main:	setb	IE.0		;enable INT0
	setb	IE.2		;enable INT1
	setb	IE.7		;enable intr flag
	setb	IE0		;edge trigger INT0
	setb	IE1		;edge trigger INT1
st:	mov	P0,#ffh
	mov	P2,#ffh
	sjmp	st