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Add documentation.

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This commit is contained in:
Natalia Portillo
2023-09-23 18:10:44 +01:00
parent 3358d66f0a
commit 33f021fd54
22 changed files with 658 additions and 48 deletions
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9
crc64_clmul.c
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@@ -72,6 +72,15 @@ CLMUL static __m128i fold(__m128i in, __m128i foldConstants)
return _mm_xor_si128(_mm_clmulepi64_si128(in, foldConstants, 0x00), _mm_clmulepi64_si128(in, foldConstants, 0x11));
}
/**
* @brief Calculate the CRC-64 checksum using CLMUL instruction extension.
*
* @param previous_crc The previously calculated CRC-64 checksum.
* @param data Pointer to the input data buffer.
* @param len Length of the input data in bytes.
*
* @return The calculated CRC-64 checksum.
*/
AARU_EXPORT CLMUL uint64_t AARU_CALL crc64_clmul(uint64_t crc, const uint8_t* data, long length)
{
const uint64_t k1 = 0xe05dd497ca393ae4; // bitReflect(expMod65(128 + 64, poly, 1)) << 1;