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_m_pfrsqrt

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Microsoft Specific

Performs scalar floating-point, low-precision reciprocal square root approximation.

__m64 _m_pfrsqrt( __m64 m );

Remarks

The 15-bit accurate result is duplicated in both high and low halves of the return value. The _m_pfrsqrt function returns a 64-bit MMX value. There is no error return.

Requirements

Header: mm3dnow.h

END Microsoft Specific

See Also

Reference

3DNow! Intrinsics