INT 83 - JM Pro Tracker v5.0 - ???                                              
	AH = 02h
	BX = ???
	???
Return: CF clear if successful
	    AX = ???
	    BX = ???
	    CX = ???
	    DX = ???
	    SI = ???
	CF set on error
	    AX = error code (000Ah,000Bh,other) (see #03976)