TIC1	equ	$1010
TFLG1	equ	$1023
TCTL2	equ	$1021
TMSK1	equ	$1022

	org	$2050
front	rmb	2
period	rmb	2
ED1ba	fcb	$10

	org	$00E8
	jmp	issprog

	org	$2100

	sei

	lds	#$0200

	ldab	ED1ba
	stab	TCTL2

	ldaa	TFLG1
	anda	#$04
	staa	TFLG1

	ldaa	#$04
	staa	TMSK1
	cli

	ldd	#$0000
	std	$2000
boucle	bra	boucle

issprog	ldd	#$ACDC
	std	$2000

	rti