Slap ROM Patcher
20 points by apsec112 4 days ago | 10 comments

gblargg 4 hours ago
Doesn't the undo functionality cause it to store copyrighted data from the original ROM in the patch?
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infinite_spin 3 hours ago
I think it's similar to adding a note to a book, and then removing that note, leaving you with a the original book. That scenario doesn't violate copyright law as far as I'm aware.
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Dylan16807 2 hours ago
That's not how patching a rom works. You directly replace data and the formats that let you undo have to put a copy of the original data in the patch file. So yes it is a risk.
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choo-t 42 minutes ago
You don't need a copy of the original data, you can simply store your change as a XOR so undoing it mean XORing it again.
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Retr0id 39 minutes ago
However, if your change involves zeroing something out, you're back to storing the original data again.
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matheusmoreira 3 hours ago
> nyuu.page

Is this in any way related to byuu, the SNES emulator author?

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22c 60 minutes ago
No it's not related, sadly Byuu passed away several years ago.
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yjftsjthsd-h 5 hours ago
> It is written in Haskell and Rust and this made getting it to work nicely in the browser, interesting

I imagine. What motivated using that combination?

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teroshan 3 hours ago
I recently stumbled upon https://www.hackdex.app/ which is a lovely website dedicated to Pokémon ROM hacks.

It's a really vibrant scene, with a lot of different hacks that go all the way to fully-fledged games, but because it's so rich it can be a pain to find what is available and what the latest version of a given ROM hack is.

This website has a neat feature where you upload any base Pokémon ROM file, and it filters all available ROM hacks that are compatible with it via a neat UI. And of course it offers you a one-click download (well, in-local-storage-patch) to the given ROM hack.

Source code: https://github.com/Hackdex-App/hackdex-website

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saghm 50 minutes ago
Quick clarification: I'm pretty sure there's no uploading at all; it uses local storage for the filtering too, which is important because uploading a ROM tends to be risky legally
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