core::arch::x86_64

# Function _mm512_fnmadd_round_ph

source

    pub unsafe fn _mm512_fnmadd_round_ph(
        a: __m512h,
        b: __m512h,
        c: __m512h,
        const ROUNDING: i32,
    ) -> __m512h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and x86-64 only.
Expand description

Multiply packed half-precision (16-bit) floating-point elements in a and b, subtract the intermediate result from packed elements in c, and store the results in dst.

Rounding is done according to the rounding parameter, which can be one of:

    (_MM_FROUND_TO_NEAREST_INT |_MM_FROUND_NO_EXC) // round to nearest, and suppress exceptions
    (_MM_FROUND_TO_NEG_INF |_MM_FROUND_NO_EXC)     // round down, and suppress exceptions
    (_MM_FROUND_TO_POS_INF |_MM_FROUND_NO_EXC)     // round up, and suppress exceptions
    (_MM_FROUND_TO_ZERO |_MM_FROUND_NO_EXC)        // truncate, and suppress exceptions
    _MM_FROUND_CUR_DIRECTION

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