Macro Functions for Streaming SIMD Extensions 3

The macro function intrinsics listed here are designed for the IntelŪ PentiumŪ 4 processor with Streaming SIMD Extensions 3 (SSE3).

The prototypes for these intrinsics are in the pmmintrin.h header file.

_MM_SET_DENORMALS_ZERO_MODE(x)

Macro arguments: one of __MM_DENORMALS_ZERO_ON, _MM_DENORMALS_ZERO_OFF
This causes "denormals are zero" mode to be turned on or off by setting the appropriate bit of the control register.

_MM_GET_DENORMALS_ZERO_MODE()

No arguments. This returns the current value of the denormals are zero mode bit of the control register.