Function _mm_subs_epu8

pub unsafe fn _mm_subs_epu8(a: __m128i, b: __m128i) -> __m128i

Available on (x86 or x86-64) and target feature sse2 and x86-64 only.

Subtract packed unsigned 8-bit integers in b from packed unsigned 8-bit integers in a using saturation.

Intel’s documentation