exit.c

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.
 */

#include <exit.h>
#include <printk.h>

void halt(void)
{
    printk("System halted\n");
    while(TRUE)
	asm("cli;hlt");
}


void reboot(void)
{
    while(inportb(0x64) & 0x02);
    outportb(0x64, 0xfe);
    halt();
}


void waitKey(void)
{
    uchar kbc_status;
    do {
      while(inportb(0x64) & 0x02);
      kbc_status = inportb(0x64);
   } while(!(kbc_status & 1));
}