Function core::arch::x86_64::_mm512_maskz_dbsad_epu8 [−][src]
pub unsafe fn _mm512_maskz_dbsad_epu8<const IMM8: i32>(
k: __mmask32,
a: __m512i,
b: __m512i
) -> __m512i
This is supported on x86-64 and target feature
avx512bw
only.Expand description
Compute the sum of absolute differences (SADs) of quadruplets of unsigned 8-bit integers in a compared to those in b, and store the 16-bit results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set). Four SADs are performed on four 8-bit quadruplets for each 64-bit lane. The first two SADs use the lower 8-bit quadruplet of the lane from a, and the last two SADs use the uppper 8-bit quadruplet of the lane from a. Quadruplets from b are selected from within 128-bit lanes according to the control in imm8, and each SAD in each 64-bit lane uses the selected quadruplet at 8-bit offsets.