$IF 0
-----------------------------------------------------------------------------
 BIOS Interrupt & Port I/O Routines     Created with PowerBASIC for DOS 3.50
 Copyright (C) 2002 by B‚la Valek       E-mail: bvalek2@freemail.hu
 Version date: 10-20-2002
-----------------------------------------------------------------------------
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-----------------------------------------------------------------------------
$ENDIF

DIM ABSOLUTE IntVector(255) AS DWORD AT &H0000
DIM ABSOLUTE BootStack(255) AS BYTE  AT &H0030
DIM ABSOLUTE PortAddress(7) AS WORD  AT &H0040

%COM1 = 0
%COM2 = 1
%COM3 = 2
%COM4 = 3
%LPT1 = 4
%LPT2 = 5
%LPT3 = 6
%LPT4 = 7
%EBDA = 7