_mm_cmpunord_pd
Classification
SSE_ALL, Compare, CPUID Test: SSE2
Header File
emmintrin.h
Instruction
CMPPD xmm, xmm, imm8
Synopsis
 _mm_cmpunord_pd(__m128d a, __m128d b);
Description
Compare packed double-precision (64-bit) floating-point elements in "a" and "b" to see if either is NaN, and store the results in "dst".
Operation
FOR j := 0 to 1
	i := j*64
	dst[i+63:i] := (a[i+63:i] == NaN OR b[i+63:i] == NaN) ? 0xFFFFFFFFFFFFFFFF : 0
ENDFOR