ORG $F000

INIT	SEI

	CLD

	LDX #$ff

	TXS



START 	LDA #$FF

	STA $A002

	LDA #$00

	STA $A003



LOOP	LDA $A001

	BPL LOOP

	LDA #$FF

	STA $A000

	LDX #$00

LOOP3	INX

	BNE LOOP3

	LDA #$00

	STA $A000

LOOP2	LDA $A001

	BMI LOOP2

	BPL LOOP



	ORG $FFFC

	DW INIT

	END