s6-1.asm

MOV P2 ,#0FFH MOV P3 ,#0FFH ACALL DEL AJMP MAIN ORG 0200H DEL: MOV R5,#04H F3: MOV R6,#0FF

	ORG 0000H
	AJMP MAIN
	ORG 030H
MAIN:	MOV P0,#0FEH
	ACALL DEL
	MOV P0,#0FFH
	ACALL DEL
	AJMP MAIN
DEL:	MOV R5,#04H
DEL1:	MOV R6,#0FFH
DEL2:	MOV R7,#0FFH
DEL3:	DJNZ R7, DEL3
	DJNZ R6, DEL2
	DJNZ R5, DEL1
	RET
	END