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//! Priority mask register
/// All exceptions with configurable priority are ...
#[allow(clippy::missing_inline_in_public_items)]
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub enum Primask {
/// Active
Active,
/// Inactive
Inactive,
}
impl Primask {
/// All exceptions with configurable priority are active
#[inline]
pub fn is_active(self) -> bool {
self == Primask::Active
}
/// All exceptions with configurable priority are inactive
#[inline]
pub fn is_inactive(self) -> bool {
self == Primask::Inactive
}
}
/// Reads the CPU register
#[inline]
pub fn read() -> Primask {
fn read_raw() -> u32 {
call_asm!(__primask_r() -> u32)
}
let r = read_raw();
if r & (1 << 0) == (1 << 0) {
Primask::Inactive
} else {
Primask::Active
}
}