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## _mm512_roundscale_round_ph

# Function _mm512_roundscale_round_ph

1.94.0 · Source

    pub fn _mm512_roundscale_round_ph(
        a: __m512h,
        const IMM8: i32,
        const SAE: i32,
    ) -> __m512h

Available on x86-64 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. Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter

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`

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