_mm_maskz_roundscale_round_sd in core::arch::x86_64 - Rust
Description: Round the lower double-precision (64-bit) floating-point element in b to the number of fraction bits specified by imm8, store the result in the lower element of dst using zeromask k (the element is zeroed out when mask bit 0 is not set), and copy the upper element from a to the upper element of dst. 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
Keywords: rust, rustlang, rust-lang, _mm_maskz_roundscale_round_sd

# Function core::arch::x86_64::_mm_maskz_roundscale_round_sd
[−][src]

    pub unsafe fn _mm_maskz_roundscale_round_sd<const IMM8: i32, const SAE: i32>(
        k: __mmask8,
        a: __m128d,
        b: __m128d
    ) -> __m128d

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86-64 and target feature `avx512f` only.
Expand description

Round the lower double-precision (64-bit) floating-point element in b to the number of fraction bits specified by imm8, store the result in the lower element of dst using zeromask k (the element is zeroed out when mask bit 0 is not set), and copy the upper element from a to the upper element of dst.
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

Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter. Intel’s documentation