INT 7F - Alloy NTNX, MW386 - ACKNOWLEDGE DATAGRAM                               
	AH = 12h
	AL = channel number being acknowledged
	DI:DX = 32-bit status to return to sender
Return: AL = status (see #03954)
Note:	also unlocks the channel, allowing the next datagram to be received
SeeAlso: AH=11h,AH=15h/CL=04h


(Table 03954)
Values for Alloy function status:
 00h	successful
 01h	busy
 02h	channel range error (not 00h-3Fh)
 03h	invalid subfunction
 0Ah	channel not open
 0Bh	no message in channel
 0Ch	destination slave busy--retry (NTNX)
 0Dh	destination user not active
 0Eh	destination slave not active (NTNX)
 0Fh	destination disabled datagram service