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