core::arch::x86_64::_m_pmovmskb - Rust
Description: API documentation for the Rust `_m_pmovmskb` fn in crate `core`.
Keywords: rust, rustlang, rust-lang, _m_pmovmskb

# [−][src]Function core::arch::x86_64::_m_pmovmskb

    pub unsafe fn _m_pmovmskb(a: __m64) -> i32

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86-64 and target feature `sse,mmx` only.

Takes the most significant bit from each 8-bit element in a 64-bit integer vector to create a 16-bit mask value. Zero-extends the value to 32-bit integer and writes it to the destination.