INT 14 - MultiDOS Plus - GET PORT STATUS
AH = 23h
DX = port number
Return: AH = line status (see AH=03h)
AL = modem status (see AH=03h)
SeeAlso: AH=07h"MultiDOS",AH=20h"MultiDOS"

See also: 1403

1423 - MultiDOS Plus - GET PORT STATUS