INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK MULTIPLE CHANNELS           
	AH = 10h
	CL = 08h
	DX = maximum channel number to lock
Return: AL = status (00h-03h) (see #03951)
Notes:	locks channels numbered 00h through the value in DX
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=06h,AH=10h/CL=09h