Some of us requested the savegame editor for Disgaea.As you know the patchator, for a psp game, works on the decrypted save data created by Savegame Deemer plugin.
For Disgaea: Afternoon of Darkness ...
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For Disgaea: Afternoon of Darkness there one trouble.
Some games include in their save data a spacial field to check the sanity of the file. Its name is "checksum".
In short, a checksum rappresents the content of all bytes in the file, so if some error occour and sddata is altered after the first write, the program can recognize the error and doesn't load corrupted data! A checksum are some bytes calculated by an algorithm and added to the saved game. Checksums are often used in many areas of technology.
And, unfortunately, disgaea's savegame contains a checksum. We tested many algorithms to detect the one used by disgaea programers to create its checksum.
If you are expert about programming and cryptography your help will be very useful.
And if not you but your friend has knowledge about this topic, please let him contact us.
Therefore, for now, a savegame editor for disgaea can't be built. If you want to partecipate, contact us and we'll give your more information about the disgaea checksum, like location, size and other tips.
Our work is to create savegame editors but we need help to do that cause the grater and harder effort.
Some games include in their save data a spacial field to check the sanity of the file. Its name is "checksum".
In short, a checksum rappresents the content of all bytes in the file, so if some error occour and sddata is altered after the first write, the program can recognize the error and doesn't load corrupted data! A checksum are some bytes calculated by an algorithm and added to the saved game. Checksums are often used in many areas of technology.
And, unfortunately, disgaea's savegame contains a checksum. We tested many algorithms to detect the one used by disgaea programers to create its checksum.
If you are expert about programming and cryptography your help will be very useful.
And if not you but your friend has knowledge about this topic, please let him contact us.
Therefore, for now, a savegame editor for disgaea can't be built. If you want to partecipate, contact us and we'll give your more information about the disgaea checksum, like location, size and other tips.
Our work is to create savegame editors but we need help to do that cause the grater and harder effort.
P-SPatchator Homepage
hmm... I might be able to
ReplyDeleteReally?What do you know about this trouble? Are you a programmer or have you any knowledge about crc algorithms and similar stuff?
ReplyDeleteAll i have to say, delete the checksum field code in the rom [if there is] and in the save game. if i could read how one patchator would work on one rom, in contact with that, then i might. I know some knowledge of programming
ReplyDeleteI have done that many times in different games of course that's chicken feed men.
ReplyDeleteAnyway I'll give u a save game editor if you want I have fun working with this editor of mine XD
ReplyDeleteOn the PS2 you can use a cheat device to pass the checksum. Might be worth it to find a cheat code to do the same thing with cwcheat.
ReplyDeleteGuys the solution for this is loading
ReplyDeletePrometheus-4
if you have this one along with your savegame editor all will work just fine =)
just delete the previous folder that was generated by the savegame editor for it to generate a new one having the Prometheus-4 for gen 5.50 or m33