SW		EQU	P1.7
	MYDATA	EQU	P2
 	HERE:	MOV	C,SW
			JC	OVER
			MOV	MYDATA,#'N'	
			MOV	MYDATA,#'O'
			SJMP	HERE
	OVER:	MOV	MYDATA,#'Y'’	
			MOV	MYDATA,#'E'
			MOV	MYDATA,#'S'
			SJMP	HERE
			END