INT 80 - SoundBlaster SBFM driver - SET MUSIC STATUS BYTE ADDRESS               
	BX = 0001h
	DX:AX -> music status byte
SeeAlso: BX=0000h"SBFM",BX=0002h"SBFM",BX=0003h"SBFM"
                                                                                

INT 80 - SBSIM - "QUERYDRIVERS" - CHECK DRIVERS INSTALLED
	BX = 0001h
Return: AX = bit flags for loaded drivers (see #03973)
SeeAlso: BX=0000h"SBSIM",BX=0002h"SBSIM",BX=0005h"SBSIM",INT 80/BL=00h"SBSIM"


Bitfields for SBSIM loaded drivers:
Bit(s)	Description	(Table 03973)
 0	FM(Frequency Modulation)	A method of encoding data as a series of magnetic flux reversals on disk or tape, commonly known as single-density recording.  In frequency modulation, a series of clock pulses are written at regular intervals, with one data bit for each clock pulse.  See also MFM, RLL.
 1	double disk-buffered voice driver (DDBV)
 2	memory voice driver
 3	auxiliary driver (mixer)
 4	MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer.