xous-kernel/xous-riscv/src/register/mimpid.rs

28 lines
590 B
Rust

//! mimpid register
use core::num::NonZeroUsize;
/// mimpid register
#[derive(Clone, Copy, Debug)]
pub struct Mimpid {
bits: NonZeroUsize,
}
impl Mimpid {
/// Returns the contents of the register as raw bits
pub fn bits(&self) -> usize {
self.bits.get()
}
}
read_csr!(0xF11, __read_mimpid);
/// Reads the CSR
#[inline]
pub fn read() -> Option<Mimpid> {
let r = unsafe{ _read() };
// When mimpid is hardwired to zero it means that the mimpid
// csr isn't implemented.
NonZeroUsize::new(r).map(|bits| Mimpid { bits })
}