#include	"u.h"
#include	"lib.h"
#include	"mem.h"
#include	"dat.h"
#include	"fns.h"

/*
 *  headland hip set for the safari.
 *  
 *  serious magic!!!
 */

enum
{
	Head=		0x92,		/* control port */
	 Reset=		(1<<0),		/* reset the 386 */
	 A20ena=	(1<<1),		/* enable address line 20 */
};

/*
 *  enable address bit 20
 */
void
a20enable(void)
{
	outb(Head, A20ena);
}

/*
 *  reset the chip
 */
void
exit(void)
{
	int i;

	u = 0;
	print("exiting\n");
	outb(Head, Reset);
}