INT 1A - Sperry PCIBM PC - GET REAL-TIME CLOCK DATE AH = 04h Return: CF clear if successful CL = year-1980 DH = month (binary) (01h-0Ch) DL = day (binary) (01h-1Fh) CF set on error SeeAlso: AH=02h,AH=04h,AH=05h"Sperry",INT 21/AH=2Ah,INT 4B/AH=02h"TI"