1.27.0[−][src]Function boolean_enums::lstd::arch::x86::_mm_round_sd
pub unsafe fn _mm_round_sd(a: __m128d, b: __m128d, rounding: i32) -> __m128d
This is supported on x86 and target feature
sse4.1
only.Round the lower double-precision (64-bit) floating-point element in b
using the rounding
parameter, store the result as a double-precision
floating-point element in the lower element of the intrinsic result,
and copy the upper element from a
to the upper element of the intrinsic
result.
Rounding is done according to the rounding parameter, which can be one of:
#![feature(stdsimd)] #[cfg(target_arch = "x86")] use std::arch::x86::*; #[cfg(target_arch = "x86_64")] use std::arch::x86_64::*; // round to nearest, and suppress exceptions: _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC; // round down, and suppress exceptions: _MM_FROUND_TO_NEG_INF | _MM_FROUND_NO_EXC; // round up, and suppress exceptions: _MM_FROUND_TO_POS_INF | _MM_FROUND_NO_EXC; // truncate, and suppress exceptions: _MM_FROUND_TO_ZERO | _MM_FROUND_NO_EXC; // use MXCSR.RC; see `_MM_SET_ROUNDING_MODE`: _MM_FROUND_CUR_DIRECTION;