INT 49 - TI Professional PC - CRT - GET START-OF-DISPLAY POINTER AH = 17h Return: DX = current offset at which display starts Note: AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs SeeAlso: AH=01h,AH=02h,INT 10/AH=FEh