fix(apu): resolve off-by-one error

2021-08-17 23:14:56 -05:00
parent 22f96a10e7
commit 5d64e539a7
2 changed files with 5 additions and 9 deletions
--- a/src/apu.rs
+++ b/src/apu.rs
@@ -101,8 +101,6 @@ impl Apu {
        if self.falling_edge(12, div) {
            use FrameSequencerState::*;

-            self.sequencer.next();
-
            match self.sequencer.state() {
                Length => self.handle_length(),
                LengthAndSweep => {
@@ -112,6 +110,8 @@ impl Apu {
                Envelope => self.handle_envelope(),
                Nothing => {}
            }
+
+            self.sequencer.next();
        }

        self.div_prev = Some(div);