_mm256_maskz_sub_epi8
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPSUBB ymm {z}, ymm, ymm
Synopsis
 _mm256_maskz_sub_epi8(__mmask32 k, __m256i a, __m256i b);
Description
Subtract packed 8-bit integers in "b" from packed 8-bit integers in "a", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 31
	i := j*8
	IF k[j]
		dst[i+7:i] := a[i+7:i] - b[i+7:i]
	ELSE
		dst[i+7:i] := 0
	FI	
ENDFOR
dst[MAX:256] := 0