Int 80  - Sbsim - "getbufferinfo" - Get Driver's Buffer Address            [s]

   BX = 0005h
   AX = driver (00h = FM, 01h = DDB Voice, 04h = MIDI)

Return: CF clear if successful
       DX:AX -> buffer
       CX = buffer size in K
   CF set on error
Program: SBSIM is Creative Labs' SoundBlaster Simplified Interface Module,
     which provides access to multiple drivers for the SoundBlaster
     board through a single interface
Range: INT 80h to INT BFh, selected automatically

Note:  the SBSIM installation check consists of testing for the signature
     "SBSIM" at offset 103h in the interrupt handler's segment.

See Also: BX=0000h"SBSIM",BX=0001h"SBSIM",BX=0002h"SBSIM",INT 80/BL=00h"SBSIM"