Int 15/AX=DA15h

AX = DA15h
ES:DI -> 8-byte buffer for ??? and BIOS revision strings

Return:
CF clear
ES:DI buffer filled
AL = 00h

Note: For BIOS v1.00.05.AX1, the ??? string is "IDNO" and the BIOS revision string is "AX1 "

See Also: AX=DA05h - AX=DB04h