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Posted on 01-09-26, 07:47 pm


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I wanted to see what will happen if i press those buttons and then when I wanted to modify it . it showed me this There is a FIX ?
Posted on 01-10-26, 07:05 am
この記号は… 解読できないよ…


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Since: 01-17-13
You probably can't undo this (there's no "compress overlay" button), so you'll need to grab the file from an unedited ROM and import it into your modified ROM. Then you need to edit the graphics again.

Do note that you need to avoid trying to open the file you currently have in your edited ROM- else NSMBe will throw that "file is already being edited" error until you close the editor entirely and open it again.


"Decompress overlay" isn't meant to be used on anything that isn't an overlay- I don't even know why it worked for this file. I'd be baffled if there's no sanity checks.

If you really want the file back, someone could theoretically make a function that undoes the decompression attempt NSMBe just did, since it's just reversing all the steps.
Posted on 01-11-26, 06:09 pm
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Posted by Thierry
If you really want the file back, someone could theoretically make a function that undoes the decompression attempt NSMBe just did, since it's just reversing all the steps.

that's called compression

also, that post formatting is a tad hard to read, some line breaks would help
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Posted on 01-12-26, 02:48 am
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Posted by Arisotura
that's called compression

yes? that's what I was alluding to

but it might not be that simple since the file they decompressed isn't an overlay- I don't know how cleanly reversible it would be, and whether nsmbe would even tell you if it fails one of the steps for any reason
Posted on 01-12-26, 11:30 am
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the issue is that, while decompression is a 1:1 process - for one compressed input you have exactly one decompressed output (atleast for lossless compression like what Nintendo used)

it isn't true in the other way

one decompressed input could yield multiple valid compressed outputs

so I don't think it's easy to reverse
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