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Add a comment explaining where the frequency and buffer size come from

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Gwilym Kuiper 2021-06-06 11:30:49 +01:00
parent 9d1aeea077
commit 334472f749
1 changed files with 3 additions and 0 deletions
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agb/src/sound/mixer.rs
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@ -18,7 +18,10 @@ impl Mixer {
} }
} }
// I've picked one frequency that works nicely. But there are others that work nicely
// which we may want to consider in the future: https://web.archive.org/web/20070608011909/http://deku.gbadev.org/program/sound1.html
const SOUND_FREQUENCY: i32 = 10512; const SOUND_FREQUENCY: i32 = 10512;
const SOUND_BUFFER_SIZE: usize = 176;
// Once we have proper DMA support, we should use that rather than hard coding these here too // Once we have proper DMA support, we should use that rather than hard coding these here too
const DMA1_SOURCE_ADDR: MemoryMapped<u32> = unsafe { MemoryMapped::new(0x0400_00bc) }; const DMA1_SOURCE_ADDR: MemoryMapped<u32> = unsafe { MemoryMapped::new(0x0400_00bc) };