Int 33 Fn 006A  U - Ati Mouse - Installation Check                         [M]

   AX = 006Ah

Return: AL = AAh
   AH = ???
   BH = ???
   BL = ???
   CL = ???
   CH = ???
Program: ATI's MOUSE.COM and MOUSE.SYS are drivers for the mouse port found on
     some of ATI's video adapters

See Also: AX=006Dh