/*
	cylcalc
	-------
	Calculate the cylinders needed to format X MB on the hard drive.

	Gilbert Ramirez
	Technical Services
	University Health System

	$Id: ramirez.cylcalc,v 1.1.1.1 2002/08/14 22:27:25 dan Exp $

*/

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
	int		megs;
	int		heads;
	int		sectors;
	int		bytes;

	int		cyl;
	int		calc_bytes;

	if (argc != 4) {
		fprintf(stderr, "\nusage: %s megabytes heads sectors\n"
			"\tcalculates cylinders needed for such a format.\n",
			argv[0]);
		exit(-1);
	}

	megs = atoi(argv[1]);
	heads = atoi(argv[2]);
	sectors = atoi(argv[3]);


	bytes = megs * 1024 * 1024;
	cyl = 0;

	do {
		cyl++;
		calc_bytes = heads * sectors * 512 * cyl;
	} while (calc_bytes < bytes);

	printf("%d\n", cyl);

	return 0;
}