INCLUDE 89c51.mc 

	org 000h
	Lampe1:
	JB P2.3, Lampel1
	CLR P1.0
	JMP Lampe2
	Lampel1:
	SETB P1.0
	Lampe2:
	JB P2.2, Lampel2
	CLR P1.1
	JMP Lampe3
	Lampel2:
	SETB P1.1
	Lampe3:
	JB P2.1, Lampel3
	CLR P1.2
	JMP Lampe4
	Lampel3:
	SETB P1.2
	Lampe4:
	JB P2.0, Lampel4
	CLR P1.3
	JMP Lampe1
	Lampel4:
	SETB P1.3
	JMP Lampe1
	
	
	
	END