Category: serial I/O

INT 14 - SERIAL - GET PORT STATUS

	AH = 03h
	AL = 00h (ArtiCom)
	DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #00304)
	AL = modem status (see #00305)
	AX = 9E00h if disconnected (ArtiCom)
Note:	the 1993/04/08 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=00h,AH=07h"MultiDOS",AX=8000h"ARTICOM",AH=81h"COURIERS",AX=FD02h