NES graphics issues

Discuss technical or other issues relating to programming the Nintendo Entertainment System, Famicom, or compatible systems.

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capsulej
Posts: 6
Joined: Mon Jun 05, 2017 12:33 am

Re: NES graphics issues

Post by capsulej » Sun Feb 10, 2019 1:35 am

What part did you want to see specifically?

https://imgur.com/a/CTmBKdl

lidnariq
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Location: Seattle

Re: NES graphics issues

Post by lidnariq » Sun Feb 10, 2019 10:15 am

Oh, you've got a oldschool modded NES! We don't actually know what's going on inside the older versions of the PPU, which includes the 2C03. Other than "some bugs"...

capsulej
Posts: 6
Joined: Mon Jun 05, 2017 12:33 am

Re: NES graphics issues

Post by capsulej » Sun Feb 10, 2019 4:35 pm

I sure hope it isn't the PPU, they aren't exactly easy to come by.

lidnariq
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Location: Seattle

Re: NES graphics issues

Post by lidnariq » Sun Feb 10, 2019 5:10 pm

Do you recall if they've always been there, or if it's a recent change?

capsulej
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Joined: Mon Jun 05, 2017 12:33 am

Re: NES graphics issues

Post by capsulej » Mon Feb 11, 2019 10:43 pm

Not sure, i dont use it much. I dont remember seeing it before though.

lidnariq
Posts: 10241
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: NES graphics issues

Post by lidnariq » Mon Feb 11, 2019 11:47 pm

If you're up for trying something random, you could try the cheap option of replacing the 74'373 that the PPU uses. But I have no idea if it's related; it's just one thing that could possibly maybe cause the symptom you're seeing.

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gravelstudios
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Re: NES graphics issues

Post by gravelstudios » Tue Feb 19, 2019 6:36 pm

May be completely unrelated. I was getting a glitch similar to this when using my Everdrive. I deleted the rom on which the glitch was happening and re-copied it onto the SD card. it seems fine now. I don't know whether that's helpful information or not.

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