_mm512_roundscale_ph in core::arch::x86 - Rust
Description: Round packed half-precision (16-bit) floating-point elements in a to the number of fraction bits specified by imm8, and store the results in dst.

## _mm512_roundscale_ph

# Function _mm512_roundscale_ph

Source

    pub fn _mm512_roundscale_ph(a: __m512h, const IMM8: i32) -> __m512h

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

Round packed half-precision (16-bit) floating-point elements in a to the number of fraction bits specified by imm8, and store the results in dst.

Rounding is done according to the imm8 parameter, which can be one of:

- `_MM_FROUND_TO_NEAREST_INT` : round to nearest
- `_MM_FROUND_TO_NEG_INF` : round down
- `_MM_FROUND_TO_POS_INF` : round up
- `_MM_FROUND_TO_ZERO` : truncate
- `_MM_FROUND_CUR_DIRECTION` : use `MXCSR.RC` - see `_MM_SET_ROUNDING_MODE`

Intel’s documentation