Category: BIOS
INT 1A - TIME - GET RTC DATE/TIME ALARM AND STATUS (IBM) AH = 0Eh Return: CF clear if successful BH = alarm status 00h disabled 01h enabled but will not power-up system 02h enabled, system will power-up on activation CH = alarm time, hours (BCD) CL = alarm time, minutes (BCD) DH = seconds (BCD) DL = day of month (BCD) CF set on error SeeAlso: AH=0Ch,AH=0Dh,AH=0Fh