AH = FCh DX = port (00h-03h) Return:AH = RS232 status bits (see #00304 at AH=03h) AL = character
Return:AH = RS232 status bits (see #00304 at AH=03h) AL = character
See Also: AH=02h - AH=0Ch - AX=FF02h
Category: Serial I/O - Int 14h - I
