params.h

一个微型操作系统源码

/*
 * OSV
 * Copyright (C) 2002 Ciprian DOSOFTEI <[e-mail]>
 * All rights reserved.
 * 
 * http://backster.free.fr/osv
 *
 * This file is part of the OSV project. OSV is free software, also known as
 * "open source"; you can redistribute it and/or modify it under the terms 
 * of the GNU General Public License (GPL), version 2, as published by the Free
 * Software Foundation (FSF). To explore alternate licensing terms, contact 
 * the author at [e-mail] or [phone].
 * 
 * OSV 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 GPL for more details.  You should have
 * received a copy of the GPL along with OSV; see the file COPYING.  If
 * not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
 */

#define GDT_SIZE 	8192
#define IDT_SIZE 	256

#define LIMIT_1MB 	0xFFFFF
#define LIMIT_4GB 	0xFFFFFFFF

#define KERNEL_CS	0x08
#define KERNEL_DS	0x10
#define USER_CS		0x1B
#define USER_DS		0x23

#define PHYS_BASE	0x00100000
#define LOW_BASE	0x00020000
#define VIDEO_START	0x000A0000
#define VIDEO_END	PHYS_BASE
#define PAGING_CR3	0x00060000