INT 1A - TIME - READ RTCsee Real-Time Clock ALARM TIME AND STATUS (CONVIBM Convertible,PS30IBM PS/2 Model 30 and below)
	AH = 09h
Return: CH = hours in BCD(Binary Coded Decimal) A method of data storage where two decimal digits are stored in each byte, one in the upper four bits and the other in the lower four bits.  Since only the values 0 through 9 are used in each half of a byte, BCD values can be read as decimal numbers on a hexadecimal display of memory or a file.
	CL = minutes in BCD(Binary Coded Decimal) A method of data storage where two decimal digits are stored in each byte, one in the upper four bits and the other in the lower four bits.  Since only the values 0 through 9 are used in each half of a byte, BCD values can be read as decimal numbers on a hexadecimal display of memory or a file.
	DH = seconds in BCD(Binary Coded Decimal) A method of data storage where two decimal digits are stored in each byte, one in the upper four bits and the other in the lower four bits.  Since only the values 0 through 9 are used in each half of a byte, BCD values can be read as decimal numbers on a hexadecimal display of memory or a file.
	DL = alarm status
	    00h alarm not enabled
	    01h alarm enabled but will not power up system
	    02h alarm will power up system
SeeAlso: AH=08h