alt Hacker NewsThat'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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Joker_vD • today at 11:35 AM
So? Since when has making backups of the copyrighted stuff that you have the right to use been made illegal?
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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.