org	0
	ljmp 	1000h
	org	000Bh
	inc	byte3
	reti

	org	1000h
;
;... serial port config....
;
	ORL	TMOD,#05H	; init the counter
com:	clr	et1
	mov	th0,#0		; reset the counter
	mov	tl0,#0
	mov	byte3,#0
	setb	tr0
	setb	et0
	lcall	delay_1sec
	clr	tr0
	lcall	display_frec
	sjmp	com