_mm512_maskz_subs_epi8
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPSUBSB zmm {z}, zmm, zmm
Synopsis
 _mm512_maskz_subs_epi8(__mmask64 k, __m512i a, __m512i b);
Description
Subtract packed signed 8-bit integers in "b" from packed 8-bit integers in "a" using saturation, 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 63
	i := j*8
	IF k[j]
		dst[i+7:i] := Saturate8(a[i+7:i] - b[i+7:i])
	ELSE
		dst[i+7:i] := 0
	FI	
ENDFOR
dst[MAX:512] := 0