INT 1A - TIME - SET RTC DATE/TIME ACTIVATED POWER-ON MODE (IBM) AH = 0Ch CH = hours (BCD) CL = minutes (BCD) DH = seconds (BCD) DL = day of month (BCD) Return: CF clear if successful CF set on error (alarm already set or clock nonfunctional) Desc: set an automatic power-on for a given time in the future Note: IBM classifies this function as optional SeeAlso: AH=06h,AH=0Dh,AH=0Eh,INT 4A