Use 32-bit numbers more for more performance (and start tracking that)

tracker/agb-tracker-interop/src/lib.rs

@@ -10,8 +10,8 @@ pub struct Track<'a> {
     pub patterns_to_play: &'a [usize],
 
     pub num_channels: usize,
-    pub frames_per_tick: Num<u16, 8>,
+    pub frames_per_tick: Num<u32, 8>,
-    pub ticks_per_step: u16,
+    pub ticks_per_step: u32,
 }
 
 #[derive(Debug)]

tracker/agb-tracker/examples/basic.rs

@@ -11,14 +11,35 @@ const DB_TOFFE: Track = import_xm!("examples/db_toffe.xm");
 fn main(mut gba: Gba) -> ! {
     let vblank_provider = agb::interrupt::VBlank::get();
 
+    let timer_controller = gba.timers.timers();
+    let mut timer = timer_controller.timer2;
+    let mut timer2 = timer_controller.timer3;
+    timer.set_enabled(true);
+    timer2.set_cascade(true).set_enabled(true);
+
     let mut mixer = gba.mixer.mixer(Frequency::Hz18157);
     mixer.enable();
 
     let mut tracker = Tracker::new(&DB_TOFFE);
 
     loop {
+        let before_mixing_cycles_high = timer2.value();
+        let before_mixing_cycles_low = timer.value();
+
         tracker.step(&mut mixer);
+
         mixer.frame();
+        let after_mixing_cycles_low = timer.value();
+        let after_mixing_cycles_high = timer2.value();
+
         vblank_provider.wait_for_vblank();
+
+        let before_mixing_cycles =
+            ((before_mixing_cycles_high as u32) << 16) + before_mixing_cycles_low as u32;
+        let after_mixing_cycles =
+            ((after_mixing_cycles_high as u32) << 16) + after_mixing_cycles_low as u32;
+        let total_cycles = after_mixing_cycles.wrapping_sub(before_mixing_cycles);
+
+        agb::println!("{total_cycles} cycles");
     }
 }

tracker/agb-tracker/src/lib.rs

@@ -29,8 +29,8 @@ pub struct Tracker {
     track: &'static Track<'static>,
     channels: Vec<TrackerChannel>,
 
-    frame: Num<u16, 8>,
+    frame: Num<u32, 8>,
-    tick: u16,
+    tick: u32,
     first: bool,
 
     current_row: usize,
@@ -164,7 +164,7 @@ impl TrackerChannel {
         &mut self,
         mixer: &mut Mixer<'_>,
         effect: &PatternEffect,
-        tick: u16,
+        tick: u32,
         speed: Num<u32, 8>,
     ) {
         if let Some(channel) = self

tracker/agb-xm-core/src/lib.rs

@@ -272,7 +272,7 @@ pub fn parse_module(module: &Module) -> TokenStream {
         .collect::<Vec<_>>();
 
     // Number 150 here deduced experimentally
-    let frames_per_tick = Num::<u16, 8>::new(150) / module.default_bpm;
+    let frames_per_tick = Num::<u32, 8>::new(150) / module.default_bpm as u32;
     let ticks_per_step = module.default_tempo;
 
     let interop = agb_tracker_interop::Track {
@@ -283,7 +283,7 @@ pub fn parse_module(module: &Module) -> TokenStream {
         patterns_to_play: &patterns_to_play,
 
         frames_per_tick,
-        ticks_per_step,
+        ticks_per_step: ticks_per_step.into(),
     };
 
     quote!(#interop)