INT 14 - COURIERS.COM - FLUSH PENDING INPUT                                     
	AH = 85h
Return: nothing
SeeAlso: AH=0Ah,AH=88h"COURIERS"
                                                                                

INT 14 - COMM-DRV v14.0 - RECEIVE PACKET                                        
	AH = 85h
	CX = length of packet in bytes
	DX = port number
	ES:DI -> buffer for packet
Return: AH = line status (see #00304)
	    bit 7 set on error
	AL destroyed
Note:	this call requires that at least the requested number of bytes are
	  already present in the input buffer, and will fail if there are
	  fewer bytes available
SeeAlso: AH=84h"COMM-DRV",AH=86h"COMM-DRV",AH=8Eh"COMM-DRV"