_mm_subs_epi8
Classification
SSE_ALL, Arithmetic, CPUID Test: SSE2
Header File
emmintrin.h
Instruction
PSUBSB xmm, xmm
Synopsis
 _mm_subs_epi8(__m128i a, __m128i 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".
Operation
FOR j := 0 to 15
	i := j*8
	dst[i+7:i] := Saturate8(a[i+7:i] - b[i+7:i])	
ENDFOR