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Cryptonote tools WIP

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This commit is contained in:
SChernykh 2021-06-15 00:28:32 +02:00
parent 0414511de0
commit 7bfb801ce2
12 changed files with 644 additions and 73 deletions
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38
src/crypto/cn/CryptoNight_x86.h
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@ -75,18 +75,7 @@ static inline void do_skein_hash(const uint8_t *input, size_t len, uint8_t *outp
void (* const extra_hashes[4])(const uint8_t *, size_t, uint8_t *) = {do_blake_hash, do_groestl_hash, do_jh_hash, do_skein_hash};
#if defined(__x86_64__) || defined(_M_AMD64)
# ifdef __GNUC__
static inline uint64_t __umul128(uint64_t a, uint64_t b, uint64_t* hi)
{
unsigned __int128 r = (unsigned __int128) a * (unsigned __int128) b;
*hi = r >> 64;
return (uint64_t) r;
}
# else
#define __umul128 _umul128
# endif
#elif defined(__i386__) || defined(_M_IX86)
#if defined(__i386__) || defined(_M_IX86)
static inline int64_t _mm_cvtsi128_si64(__m128i a)
{
return ((uint64_t)(uint32_t)_mm_cvtsi128_si32(a) | ((uint64_t)(uint32_t)_mm_cvtsi128_si32(_mm_srli_si128(a, 4)) << 32));
@ -95,31 +84,6 @@ static inline int64_t _mm_cvtsi128_si64(__m128i a)
static inline __m128i _mm_cvtsi64_si128(int64_t a) {
return _mm_set_epi64x(0, a);
}
static inline uint64_t __umul128(uint64_t multiplier, uint64_t multiplicand, uint64_t *product_hi) {
// multiplier = ab = a * 2^32 + b
// multiplicand = cd = c * 2^32 + d
// ab * cd = a * c * 2^64 + (a * d + b * c) * 2^32 + b * d
uint64_t a = multiplier >> 32;
uint64_t b = multiplier & 0xFFFFFFFF;
uint64_t c = multiplicand >> 32;
uint64_t d = multiplicand & 0xFFFFFFFF;
//uint64_t ac = a * c;
uint64_t ad = a * d;
//uint64_t bc = b * c;
uint64_t bd = b * d;
uint64_t adbc = ad + (b * c);
uint64_t adbc_carry = adbc < ad ? 1 : 0;
// multiplier * multiplicand = product_hi * 2^64 + product_lo
uint64_t product_lo = bd + (adbc << 32);
uint64_t product_lo_carry = product_lo < bd ? 1 : 0;
*product_hi = (a * c) + (adbc >> 32) + (adbc_carry << 32) + product_lo_carry;
return product_lo;
}
#endif