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Improve emulation accuracy #22

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Amjad50 opened this issue Oct 22, 2024 · 0 comments

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emulation-core enhancement

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Amjad50 commented Oct 22, 2024

Currently, the emulation is done like this:

clock APU (audio)
clock CPU:
- if its time to execute instruction, execute it and store how many cycles we should wait
- if we are still waiting, don't do anything and decrement the wait counter (this is the issue here, as we are grouping several cycles into one and faking accurate cycle emulation
clock PPU (picture) 3 times (since its running 3 times cpu speed, it should not run like that and should be executed while cpu is executing

There are some tests to cover accurate emulation.

I have already done that in mizu, it has much more accurate emulation than this and the methods there could be applied here.

Amjad50 added enhancement emulation-core labels

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