_mm_cmpestrs
Classification
SSE_ALL, String Compare, CPUID Test: SSE4.2
Header File
nmmintrin.h
Instruction
PCMPESTRI xmm, xmm, imm8
Synopsis
 _mm_cmpestrs(__m128i a, int la, __m128i b, int lb, const int imm8);
Description
Compare packed strings in "a" and "b" with lengths "la" and "lb" using the control in "imm8", and returns 1 if any character in "a" was null, and 0 otherwise. [strcmp_note]
Operation
size := (imm8[0] ? 16 : 8) // 8 or 16-bit characters
UpperBound := (128 / size) - 1
dst := (la <= UpperBound)