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Microsoft Specific

Returns the floating-point, single-precision value from the lower half of the 64-bit MMX value in the source operand.

float _m_to_float( __m64 m );

There is no error return.

The compiler correctly ensures that an implict FEMMS is issued before any attempt to use the result of _m_to_float( ) operation.

Header: mm3dnow.h

END Microsoft Specific