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_mm_rsqrt_ss

Microsoft Specific

Computes the approximation of the reciprocal of the square root of the lower single-precision, floating-point value of a; the upper three single-precision, floating-point values are passed through.

__m128 _mm_rsqrt_ss(__m128 a );
RSQRTSS

r0 := recip(sqrt(a0))
r1 := a1 ; r2 := a2 ; r3 := a3

Header: mmintrin.h

END Microsoft Specific

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