/* kernLdr_utils.c - This file is a part of NutsOS
 *
 * NutsOS
 * Copyright (C) 2013  Free Software Foundation, Inc.
 *
 * NutsOS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * NutsOS 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with NutsOS; If not, see <http://www.gnu.org/licenses/>.
 *
 * Valentin Verdier <valentin.verdier03@gmail.com>
 */

#include "drivers/ATA.h"

#include "kernLdr.h"

void memcopy(char *src, char *dst, unsigned int n) {
	unsigned int i;
	for(i = 0; i < n; i++) {
		dst[i] = src[i];
	}
}

int strcmp(char *str1, char *str2) {
	int length1 = 0;
	int length2 = 0;
	int i;

	while(str1[length1] != 0) {
		length1++;
	}

	while(str2[length2] != 0) {
		length2++;
	}

	if(length1 == length2) {
		for(i = 0; i < length1; i++) {
			if(str1[i] != str2[i]) {
				return 0;
			}
		}
	} else {
		return 0;
	}

	return 1;
}

void intToStr(T_dword num, char *str, int base) {
	const char decimal[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
	int i, j, a;
	int length;
	int tmp = 0;
	int counter = 0;

	for(i = 0; i < 10; i++) {
		if((num / (expo(base, i))) < base) {
			length = i;
			break;
		}
	}

	j = length;

	for(i = 0; i <= length; i++) {
		a = num / expo(base, j);
		str[counter] = decimal[a - (base * tmp)];
		tmp = a;
		counter++;
		j--;
	}
	str[counter] = 0;
}

T_dword expo(int x, int y) {
	return (y > 0) ? (x * expo(x, y-1)) : 1;
}

void delay(unsigned int n) {
	unsigned int i;
	for(i = 0; i < n; i++);
}