/*  SET_VPAG.C - Select A Video Memory Page
				Last Modified: 06/11/86
				Copyright (C) 1986,  T.A. Daneliuk
*/

#include    <t&r.h>
#include    <dos.h>

void	set_vpage(page)		/* Select a particular video memory page */

char	page;

{
extern	unsigned	_rax;
extern	char	scr_page;

	scr_page=page;			/* Inform PCIO where we're going */
	_rax=0x0500;			/* Select video page by ORing into AL */
	page=page & 0x03;		/* Mask out all but the significant bits */
	_rax=_rax | page;
	_doint(0x10);

}