Function 09h    Read Real Time Clock Alarm Time and Status
			                        (Convertible and PS/2 Model 30) 
entry   AH      09h 
return  CH      hours in BCD 
	CL      minutes in BCD 
	DH      seconds in BCD 
	DL      alarm status: 
		00h     if alarm not enabled 
		01h     if alarm enabled but will not power up system 
		02h     if alarm will power up system