INT 14 - COMM-DRV v14.0 - GET INT 14 FLAGS                                      
	AX = FFFCh
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
	    BX = flags (see #00403)
SeeAlso: AX=FFFDh


Bitfields for INT 14h flags:
Bit(s)	Description	(Table 00403)
 0	port active for INT 14h
 1	interface behaving like a FOSSIL(Fido/Opus/Seadog Standard Interface Layer)  A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. driver