# Function _mm_cvt_roundsh_u64

Source

    pub fn _mm_cvt_roundsh_u64(a: __m128h, const ROUNDING: i32) -> u64

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

Convert the lower half-precision (16-bit) floating-point element in a to a 64-bit unsigned integer, and store the result 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` : use `MXCSR.RC` - see `_MM_SET_ROUNDING_MODE`

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