The OpenD Programming Language

_mm_testz_pd

Compute the bitwise AND of 128 bits (representing double-precision (64-bit) floating-point elements) in a and b, producing an intermediate 128-bit value, return 1 if the sign bit of each 64-bit element in the intermediate value is zero, otherwise return 0. In other words, return 1 if a and b don't both have a negative number as the same place.

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