# Function core::arch::x86::_mm_gf2p8mul_epi8

source ·

    pub unsafe fn _mm_gf2p8mul_epi8(a: __m128i, b: __m128i) -> __m128i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `gfni` only.
Expand description

Performs a multiplication in GF(2^8) on the packed bytes. The field is in polynomial representation with the reduction polynomial x^8 + x^4 + x^3 + x + 1.

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