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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/file_sys/fssystem/fssystem_utility.h"
namespace FileSys {
void AddCounter(void* counter_, size_t counter_size, u64 value) {
u8* counter = static_cast<u8*>(counter_);
u64 remaining = value;
u8 carry = 0;
for (size_t i = 0; i < counter_size; i++) {
auto sum = counter[counter_size - 1 - i] + (remaining & 0xFF) + carry;
carry = static_cast<u8>(sum >> (sizeof(u8) * 8));
auto sum8 = static_cast<u8>(sum & 0xFF);
counter[counter_size - 1 - i] = sum8;
remaining >>= (sizeof(u8) * 8);
if (carry == 0 && remaining == 0) {
break;
}
}
}
} // namespace FileSys
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