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PostPosted: Fri Jan 18, 2019 1:42 am 
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Joined: Mon Jan 23, 2012 11:27 pm
Posts: 157
i have a mmc3c socketed cart for testing. the text on the opening screens is jumpy. here's a test run:

https://twitter.com/FrankWDoom/status/1 ... 9824610309

(sorry, don't know a better way to post a video here)

recorded on a crt on an original nes (has a copynes installed but i don't think that matters)


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PostPosted: Fri Jan 18, 2019 3:05 am 
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Joined: Thu May 19, 2005 11:30 am
Posts: 852
Thank-you very much for that video. That means that the Everdrive N8's MMC3 scanline counter is not completely accurate.

Now the challenge for me will be to implement the delayed rendering change in a way that gets its desired effect of preventing glitches in Micro Machines while keeping the jumpy text in Crash Dummies when emulated with MMC3C instead of MC-ACC.


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PostPosted: Fri Jan 25, 2019 7:21 pm 
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Joined: Tue Nov 23, 2004 9:35 pm
Posts: 725
This video https://www.youtube.com/watch?v=8x5IHXsJ2js was almost certainly taken with a real cartridge and shows "some jumpiness", but not as much as in FrankWDoom's video.

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PostPosted: Fri Jan 25, 2019 10:32 pm 
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Joined: Sun Sep 19, 2004 9:28 pm
Posts: 3861
Location: A world gone mad
I'm sorry that I couldn't help more on this issue (considering it's 5 years old) -- I've since sold all of my NES carts. Also, the YouTube videos in questions were lost during some clean-up I did. Again, sorry that I couldn't help more or re-do the tests (especially since I now have a 1080p 60fps digital camera).


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