mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 04:41:12 +00:00
48 lines
No EOL
1.4 KiB
C
48 lines
No EOL
1.4 KiB
C
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include "utils.h"
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static void copy_forwards(uint8_t *dst, const uint8_t *src, size_t size) {
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for (int i = 0; i < size; ++i) {
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dst[i] = src[i];
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}
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}
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static void copy_backwards(uint8_t *dst, const uint8_t *src, size_t size) {
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for (int i = size - 1; i >= 0; --i) {
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dst[i] = src[i];
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}
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}
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void loader_memcpy(void *dst, const void *src, size_t size) {
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copy_forwards(dst, src, size);
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}
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void loader_memmove(void *dst, const void *src, size_t size) {
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const uintptr_t dst_u = (uintptr_t)dst;
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const uintptr_t src_u = (uintptr_t)src;
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if (dst_u < src_u) {
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copy_forwards(dst, src, size);
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} else if (dst_u > src_u) {
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copy_backwards(dst, src, size);
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} else {
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/* Nothing to do */
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}
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} |