Function  2Ch  Get Time 
     Get current system time from CLOCK$ driver 
entry   AH      2Ch 
return  CH      hours   (0-23) 
	CL      minutes (0-59) 
	DH      seconds (0-59) 
	DL      hundredths of a second (0-99) 
note 1) Time is updated every 5/100 second. 
     2) The date and time are in binary format