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added code that might be faster on smaller CPUs

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This commit is contained in:
Ahmet Inan 2023-05-18 15:55:11 +02:00
commit 7ec6a47c89
1 changed files with 6 additions and 0 deletions
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6
galois_field.hh
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@ -376,7 +376,13 @@ template <int M, int64_t POLY, typename TYPE>
GaloisFieldReference<M, POLY, TYPE> operator * (GaloisFieldReference<M, POLY, TYPE> a, GaloisFieldReference<M, POLY, TYPE> b)
{
GaloisFieldReference<M, POLY, TYPE> p(0);
#if 0
if (a.v < b.v)
std::swap(a, b);
while (a.v && b.v) {
#else
for (int i = 0; i < M; ++i) {
#endif
if (b.v & 1)
p.v ^= a.v;
if (a.v & (TYPE(1) << (M - 1)))