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dsp/pll: style

This commit is contained in:
Robert Jördens 2020-12-05 11:44:09 +01:00
parent 47806a155d
commit 941a94bbf6
2 changed files with 3 additions and 3 deletions
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2
dsp/src/lib.rs
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@ -8,4 +8,4 @@ pub mod pll;
pub mod unwrap; pub mod unwrap;
#[cfg(test)] #[cfg(test)]
mod testing; mod testing;

4
dsp/src/pll.rs
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@ -49,7 +49,7 @@ impl PLL {
/// Returns: /// Returns:
/// A tuple of instantaneous phase and frequency (the current phase increment). /// A tuple of instantaneous phase and frequency (the current phase increment).
pub fn update(&mut self, x: i32, shift: u8) -> (i32, i32) { pub fn update(&mut self, x: i32, shift: u8) -> (i32, i32) {
debug_assert!(shift >= 1 && shift <= 31); debug_assert!((1..=30).contains(&shift));
let bias = 1i32 << shift; let bias = 1i32 << shift;
let e = x.wrapping_sub(self.f); let e = x.wrapping_sub(self.f);
self.f = self.f.wrapping_add( self.f = self.f.wrapping_add(
@ -57,7 +57,7 @@ impl PLL {
); );
self.x = x; self.x = x;
let f = self.f.wrapping_add( let f = self.f.wrapping_add(
bias.wrapping_add(e).wrapping_sub(self.y) >> shift - 1, bias.wrapping_add(e).wrapping_sub(self.y) >> (shift - 1),
); );
self.y = self.y.wrapping_add(f); self.y = self.y.wrapping_add(f);
(self.y, f) (self.y, f)