/*
	gdsp.c
	page change
*/
#define USAGE "screen change\nusage: gdsp [0|1]"

#include <stdio.h>
#include <dos.h>
#include "gds.h"

#define beep() putch('\a');

void hp( void );
void main( int argc, char **argv){
	unsigned int ret;
	if(argc!=2) hp();
	else
	if(argv[1][0]=='1' || argv[1][0]=='0' ){
		ret = GDS_display_page( argv[1][0]-'0' );
		if(ret!=0) beep();
	} else {
		hp();
	}
}

void hp( void ){
	puts(USAGE);
}