Category: serial I/O

INT 14 - MultiDOS Plus IODRV - READ CHARACTER FROM PORT

	AH = 05h
	AL = timeout in seconds (00h = never)
Return: AL = status
	    00h successful
		AH = character read
	    01h read error
	    02h timed out
	    other modem status (CTS, DSR) changed
Note:	the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=02h,AH=04h"MultiDOS",AH=06h"MultiDOS",AH=22h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"