Int 2F Fn FBFB  U - Soundblaster Speech Driver - Installation Check        [s]

   AX = FBFBh
   ES = 0000h

Return: ES nonzero if installed
       ES:BX -> entry point data structure (see below)

See Also: INT 80/BX=0000h,INT F3"SoundBlaster"

Format of entry point data structure:
Offset Size    Description
 00h  3 BYTEs  signature "FB "
 03h   BYTE    driver major version number???
 04h   DWORD   speech driver entry point
 08h 24 BYTEs  ???
 20h  ? BYTEs  data buffer for calling speech driver

Call driver entry point with:
   AL = function
       07h speak a string
       data buffer (see above) contains:
           BYTE  length of string
             N BYTEs string to speak