## _mm512_mask_roundscale_ps

# Function _mm512_mask_roundscale_ps

1.89.0 · Source

    pub fn _mm512_mask_roundscale_ps(
        src: __m512,
        k: __mmask16,
        a: __m512,
        const IMM8: i32,
    ) -> __m512

Available on x86 and target feature `avx512f` only.
Expand description

Round packed single-precision (32-bit) floating-point elements in a to the number of fraction bits specified by imm8, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).
Rounding is done according to the imm8[2:0] 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