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|
macro_rules! register {
($REGISTER:ident, $reset_value:expr, $uxx:ty, {
$(#[$($attr:tt)*] $bitfield:ident @ $range:expr,)+
}) => {
#[derive(Clone, Copy)]
pub(crate) struct $REGISTER<MODE> {
bits: $uxx,
_mode: ::core::marker::PhantomData<MODE>,
}
impl $REGISTER<super::traits::Mask> {
#[allow(dead_code)]
pub(crate) fn mask() -> $REGISTER<super::traits::Mask> {
$REGISTER { bits: 0, _mode: ::core::marker::PhantomData }
}
$(
#[allow(dead_code)]
pub(crate) fn $bitfield(&self) -> $uxx {
use super::traits::OffsetSize;
let size = $range.size();
let offset = $range.offset();
((1 << size) - 1) << offset
}
)+
}
impl ::core::default::Default for $REGISTER<super::traits::W> {
fn default() -> Self {
$REGISTER { bits: $reset_value, _mode: ::core::marker::PhantomData }
}
}
#[allow(non_snake_case)]
#[allow(dead_code)]
pub(crate) fn $REGISTER(bits: $uxx) -> $REGISTER<super::traits::R> {
$REGISTER { bits, _mode: ::core::marker::PhantomData }
}
impl $REGISTER<super::traits::R> {
#[allow(dead_code)]
pub(crate) fn modify(self) -> $REGISTER<super::traits::W> {
$REGISTER { bits: self.bits, _mode: ::core::marker::PhantomData }
}
$(
#[$($attr)*]
#[allow(dead_code)]
pub(crate) fn $bitfield(&self) -> $uxx {
use super::traits::OffsetSize;
let offset = $range.offset();
let size = $range.size();
let mask = (1 << size) - 1;
(self.bits >> offset) & mask
}
)+
}
impl $REGISTER<super::traits::W> {
#[allow(dead_code)]
pub(crate) fn bits(self) -> $uxx {
self.bits
}
$(
#[$($attr)*]
#[allow(dead_code)]
pub(crate) fn $bitfield(&mut self, mut bits: $uxx) -> &mut Self {
use super::traits::OffsetSize;
let offset = $range.offset();
let size = $range.size();
let mask = (1 << size) - 1;
debug_assert!(bits <= mask);
bits &= mask;
self.bits &= !(mask << offset);
self.bits |= bits << offset;
self
}
)+
}
}
}
|
