Change the APU to use time-tracking #60
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Compute the pulse channel index only when a sample is requested. Work in progress: will not compile in this state, all other channels are broken.
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Checked this with Pokemon Silver and it seems like the envelopes don't work correctly. Notes that are supposed to release just sustain indefinitely until the next trigger. |
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IDK maybe tick_apu_div isn't getting calld correctly or working correctly.
Envelope looks like it should change the level though and it seems like its
using level when it generates a sample too, so I'm not sure what it would
be missing. Maybe its not ticking the envelope right or maybe the level
isn't actually updating properly.
…On Sun, Feb 25, 2024, 6:41 PM ciaran2 ***@***.***> wrote:
Checked this with Pokemon Silver and it seems like the envelopes don't
work correctly. Notes that are supposed to release just sustain
indefinitely until the next trigger.
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Update the APU to use time-tracking to allow it to calculate certain parts of samples only when needed. Also update the time tracking for things like envelope and sweep to avoid having separate counters for all of them.
This change also adds a context to memory access. Currently the context just provides the time of the memory access, but it could be used to track which component is accessing memory if that ever becomes useful for handling simultaneous memory accesses.
Time tracking on memory may also be useful for rollback systems, since it could allow us to reduce the amount of things that need to be cloned in order to implement rollback.