ROM Hack Possible to port TMS #FE Wii U save to switch?

[Wuigi]

As I have played 17 hours of the Wii U version of Tokyo Mirage Sessions #FE already, I'd rather not replay all that mostly same content now that I have bought the switch version with the added content.
I tried to restore the Wii U save with Checkpoint, but it crashes while loading the save list.
Using a switch save with the Wii U version doesn't immediately crash and displays the current chapter and character levels correctly, but has no information one the current scene and difficulty.
It also displays the playtime as 9999:8 in the save list.
The best case would be that just few offsets have changed, I have my 17h wii u save and like 3 minute switch save attached, any findings are welcome.
Update:
I added a ~ 3 minute wii u save as well to make the offsets better comparable.

 

[zestiva]

no , wiiu save big-endian/little-endian is reverse than ns save

 

[Wuigi]

It looks very plausible in some parts and other parts match without conversion, it's a bit strange.

 

[zestiva]

not all address parts reverse

 

[Wuigi]

I have written a small command line tool that converts a save according to the ranges of offsets I have found:
https://github.com/LittleStinky123/TMS_Reverse
Some offsets are incorrect though, so it currently still crashes when selecting the save.

Update:
It now loads a switch save converted to the wii u format without crashing, still hangs on a boot loop though.

 

[Wuigi]

The values of some data structures fluctuate that much between saves that I will probably have to look into them with XCXGecko to get their proper size so they are converted correctly.
Especially the values from 02A0 to 02FF are really annoying.

 

[Thanos3212]

The values of some data structures fluctuate that much between saves that I will probably have to look into them with XCXGecko to get their proper size so they are converted correctly.
Especially the values from 02A0 to 02FF are really annoying.

Hi, i have a completed Wii u save of TMS.

Did you find out a way to port my Wii u save file to switch port of the game?

 

[Wuigi]

@Thanos3212 Sorry I didn't have time to work on it.
To be honest it is probably to involved for me with my current knowledge.
Many variables are well documented and I was successful in guessing some on top of that correctly, but I would probably have to dig through RAM dumps of both games to find the length of every existing variable to swap the endianness accordingly.

 

[KosmoRei]

So... have you succeeded to convert WiiU save into s Switch one? I also played enough in WiiU version... and want to continue playing it on Switch because of extra story things.