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//! blcmsk
/// Mask from lowest clear bit.
pub trait Blcmsk {
/// Sets the least significant bit of `self` and clears all bits above that
/// bit.
///
/// If there is no zero bit in `self`, it sets all the bits.
///
/// # Instructions
///
/// - [`BLCMSK`](http://support.amd.com/TechDocs/24594.pdf):
/// - Description: Mask from lowest clear bit.
/// - Architecture: x86.
/// - Instruction set: TBM.
/// - Registers: 32/64 bit.
///
/// # Example
///
/// ```
/// # use bitintr::*;
/// assert_eq!(0b0101_0001u8.blcmsk(), 0b0000_0011u8);
/// assert_eq!(0b1111_1111u8.blcmsk(), 0b1111_1111u8);
/// ```
fn blcmsk(self) -> Self;
}
macro_rules! impl_blcmsk {
($id:ident) => {
impl Blcmsk for $id {
#[inline]
fn blcmsk(self) -> Self {
self ^ (self.wrapping_add(1))
}
}
};
}
impl_all!(impl_blcmsk: u8, u16, u32, u64, i8, i16, i32, i64);