# Function core::arch::x86_64::_mm_testc_pd

1.27.0 · source ·

    pub unsafe fn _mm_testc_pd(a: __m128d, b: __m128d) -> i32

Available on (x86 or x86-64) and target feature `avx` and x86-64 only.
Expand description

Computes the bitwise AND of 128 bits (representing double-precision (64-bit) floating-point elements) in `a` and `b`, producing an intermediate 128-bit value, and set `ZF` to 1 if the sign bit of each 64-bit element in the intermediate value is zero, otherwise set `ZF` to 0. Compute the bitwise NOT of `a` and then AND with `b`, producing an intermediate value, and set `CF` to 1 if the sign bit of each 64-bit element in the intermediate value is zero, otherwise set `CF` to 0. Return the `CF` value.

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