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added some nosave

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This commit is contained in:
iceman1001 2024-08-25 15:17:50 +02:00
commit 420218e95a
3 changed files with 71 additions and 35 deletions
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14
common/commonutil.c
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@ -422,7 +422,7 @@ void Uint8byteToMemBe(uint8_t *data, uint64_t value) {
data[7] = (uint8_t)((value >> 0) & 0xffu);
}
// RotateLeft - Ultralight, Desfire
// Rotate Left - Ultralight, Desfire
void rol(uint8_t *data, const size_t len) {
uint8_t first = data[0];
for (size_t i = 0; i < len - 1; i++) {
@ -431,6 +431,18 @@ void rol(uint8_t *data, const size_t len) {
data[len - 1] = first;
}
// Rotate Right - Ultralight, Desfire
void ror(uint8_t *data, const size_t len) {
uint8_t last = data[len - 1];
for (int i = len - 1; i > 0; i--) {
data[i] = data[i - 1];
}
data[0] = last;
}
void lsl(uint8_t *data, size_t len) {
for (size_t n = 0; n < len - 1; n++) {
data[n] = (data[n] << 1) | (data[n + 1] >> 7);

2
common/commonutil.h
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@ -114,6 +114,8 @@ void Uint8byteToMemBe(uint8_t *data, uint64_t value);
// rotate left byte array
void rol(uint8_t *data, const size_t len);
void ror(uint8_t *data, const size_t len);
void lsl(uint8_t *data, size_t len);
uint32_t le24toh(const uint8_t data[3]);
void htole24(uint32_t val, uint8_t data[3]);