Hardware A gba save converter...

[molo-molo]

Hello everybody,

I'm looking for a gba save converter to convert a gameshark save(.gsv) to .sav
Can you help me ?

Thanks!

 

[Krys3000]

Yes, I'm Looking for It too. HELP

 

[Maikel Steneker]

So am I. Can no-one offer any help? I have this topic opened for a few days now...

 

[Destructobot]

.gsv saves appear to be raw saves with a header added to the beginning of the file. I was able to convert a .gsv save by simply removing that header. The .gsv file was 66608 bytes, and the save was supposed to be 65536 bytes, so I just removed 1072 bytes from the beginning of the file, and it worked.

You can use File Trimmer or a hex editor.

 

[Krys3000]

I tried File Trimmer

Well, it drives me into a new gsv file. What Am I supposed to do ?

I then tried to created a .sav file with file trimmer, but the sav is empty.

 

[Destructobot]

Set it to "Trim from the Beginning", then in the offset box, enter the difference in bytes between the size of the .gsv file and the size the save should be.

After you've trimmed the file, rename it from XXXXXXXX.gsv to XXXXXXXX.sav (if you didn't already do so in file trimmer).

 

[Krys3000]

That's exactly what I've done. But the save data is still empty.

 

[molo-molo]

Yes, it didn't work

: This save is empty

 

[Destructobot]

Post the .gsv file and I'll check it out. You can upload it here: http://www.zshare.net/

 

[molo-molo]

no need! I have a little FTP

.
http://molomolo.site.voila.fr/Zelda_The_minish_cap.gsv

 

[Destructobot]

It appears that converting EEPROM saves is a bit more complicated that flash or SRAM saves. After I removed the header with File Trimmer, I had to open the file in Hex Workshop and byte flip the whole thing as 64bit unsigned quads.

Anyway, here it is: http://www.zshare.net/download/24768938338325/ (it only works on the European version of Minish Cap BTW)

 

[Krys3000]

(it only works on the European version of Minish Cap BTW)

Yes, that's what we're interessed at.

Thank you so much Destructobot, you just save my life ^^
If I can do anything...

 

[molo-molo]

Thank you very much!!!!! The save works perfectly

But, I'va juste one question: is it possible to reconvert the.sav(modified) to .gsv¿
if it's possible, you are a god for me

 

[Destructobot]

I suppose you could take the modified.sav, byte flip it back to the way it was in the .gsv file, and paste the old header back onto the beginning of the file. I don't know if that would actually work though, there might be a checksum or something in the header that would prevent it from working. It's worth a try.

 

[Krys3000]

Oh I was thinking... If I have to convert other games like that, could you explain me exactly how to do. I'm not very good at that, and :

I had to open the file in Hex Workshop and byte flip the whole thing as 64bit unsigned quads.

Sounds like gibberish to me

 

[Destructobot]

I had to open the file in Hex Workshop and byte flip the whole thing as 64bit unsigned quads.Sounds like gibberish to me

Every 8 byte "chunk" of data in the save was reversed.

ABCDEFGH IJKLMNOP QRSTUVWX YZ123456

would become

CODE

HGFEDCBA PONMLKJI XWVUTSRQ 654321ZY

Luckily, Hex Workshop (a hex editor) has a feature called "byte flip" that allowed me to correct this.


The process for converting EEPROM saves (like Minish Cap uses) from .gsv to a standard .sav is this:

1. Strip the header from the file with File Trimmer. (the header has been 1072 bytes in every .gsv file I've looked at)

2. Open the new file in Hex Workshop. Go to Tools -> Operations -> Byte Flip -> Treat Data As: 64 Bit Unsigned Quad -> Apply On Entire File -> OK. Other hex editors may have this feature, but I can't help you with them.

3. Save the file, and you should have a valid save for an emulator or flashcart.

4. Rename the file as needed (if you haven't done this already).


For games that use SRAM or flash saves, you should only need to do steps 1 and 4.

 

[Krys3000]

Thanks for your help and the time you spent on my problem.

++, Chris.

 

[yamil]

destructbot,can you host in rapidshare,megaupload,... a .sav of game completed:
Dragon ball Z buu's fury

im argentinian sorry my english

 

[Destructobot]

Here you go: http://www.zshare.net/download/272379461021e1/

That was listed as a completed save on Gamefaqs. I tested it and it works, but I don't know if it's really a completed save.

 

[maarrrrr]

Any way you can convert .xps and .sps files to .sav?