arch:: x86_64:: __m64
64-bit wide integer vector type, x86-specific
This type is the same as the
__m64 type defined by Intel,
representing a 64-bit SIMD register. Usage of this type typically
corresponds to the
mmx target feature.
Internally this type may be viewed as:
i8variables packed together
i16variables packed together
i32variables packed together
(as well as unsigned versions). Each intrinsic may interpret the internal bits differently, check the documentation of the intrinsic to see how it's being used.
Note that this means that an instance of
__m64 typically just means
a "bag of bits" which is left up to interpretation at the point of use.
Most intrinsics using
__m64 are prefixed with
_mm_ and the
integer types tend to correspond to suffixes like "pi8" or "pi32" (not
to be confused with "epiXX", used for
#[cfg(target_arch = "x86")] use std::arch::x86::*; #[cfg(target_arch = "x86_64")] use std::arch::x86_64::*; let all_bytes_zero = _mm_setzero_si64(); let all_bytes_one = _mm_set1_pi8(1); let two_i32 = _mm_set_pi32(1, 2);Run
Auto Trait Implementations
type Error = Infallible
The type returned in the event of a conversion error.