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implemented a few utils

This commit is contained in:
antifallobst 2023-01-25 01:42:04 +01:00
parent 15b6f7ee43
commit 8d3d090772
6 changed files with 158 additions and 1 deletions
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22
kernel/inc/utils/math.h Normal file
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@ -0,0 +1,22 @@
/* Copyright (C) Antifallobst <antifallobst@systemausfall.org>
*
* NyxOS 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.
*
* NyxOS 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 this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef NYXOS_MATH_H
#define NYXOS_MATH_H
#define max(a, b) (a > b ? a : b)
#define min(a, b) (a > b ? b : a)
#endif //NYXOS_MATH_H

25
kernel/inc/utils/memory.h Normal file
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@ -0,0 +1,25 @@
/* Copyright (C) Antifallobst <antifallobst@systemausfall.org>
*
* NyxOS 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.
*
* NyxOS 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 this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef NYXOS_MEMORY_H
#define NYXOS_MEMORY_H
#include "stdtypes.h"
void memory_copy (void* source, void* destination, uint32_t num);
void memory_set (void* destination, uint8_t data, uint32_t num);
bool memory_compare (void* a, void* b, uint32_t num);
#endif //NYXOS_MEMORY_H

26
kernel/inc/utils/string.h Normal file
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@ -0,0 +1,26 @@
/* Copyright (C) Antifallobst <antifallobst@systemausfall.org>
*
* NyxOS 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.
*
* NyxOS 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 this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef NYXOS_STRING_H
#define NYXOS_STRING_H
#include "stdtypes.h"
typedef const char* string_t;
uint32_t string_length (string_t str);
bool string_compare(string_t a, string_t b);
#endif //NYXOS_STRING_H

2
kernel/src/kmain.c
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@ -29,7 +29,7 @@ void _start() {
struct limine_terminal* terminal = terminal_request.response->terminals[0];
terminal_request.response->write(terminal, "Hello Limine", 12);
terminal_request.response->write(terminal, "Booting NyxOS", 13);
while(true) asm("hlt");
}

46
kernel/src/utils/memory.c Normal file
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@ -0,0 +1,46 @@
/* Copyright (C) Antifallobst <antifallobst@systemausfall.org>
*
* NyxOS 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.
*
* NyxOS 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 this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#include "utils/memory.h"
void memory_copy (void* source, void* destination, uint32_t num) {
uint8_t* src_8 = (uint8_t*)source;
uint8_t* dst_8 = (uint8_t*)destination;
for (int i = 0; i < num; i++) {
dst_8[i] = src_8[i];
}
}
void memory_set (void* destination, uint8_t data, uint32_t num) {
uint8_t* dst_8 = (uint8_t*)destination;
for (int i = 0; i < num; i++) {
dst_8[i] = data;
}
}
bool memory_compare (void* a, void* b, uint32_t num) {
uint8_t* a_8 = (uint8_t*)a;
uint8_t* b_8 = (uint8_t*)b;
for (int i = 0; i < num; i++) {
if (a_8[i] != b_8[i]) {
return false;
}
}
return true;
}

38
kernel/src/utils/string.c Normal file
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@ -0,0 +1,38 @@
/* Copyright (C) Antifallobst <antifallobst@systemausfall.org>
*
* NyxOS 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.
*
* NyxOS 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 this program.
* If not, see <https://www.gnu.org/licenses/>.
*/
#include "utils/string.h"
#include "utils/memory.h"
uint32_t string_length (string_t str) {
uint32_t n = 0;
char* c = (char*)str;
while(*c != '\0') {
c++;
n++;
}
return n;
}
bool string_compare(string_t a, string_t b) {
uint32_t a_len = string_length(a);
if (a_len != string_length(b)) {
return false;
}
return memory_compare(a, b, a_len);
}