Hacking Devolution - Public Release

[ToddofWar420]

Anybody know if Devolution can play compressed games yet or even know if it will be later? I'm trying to figure a way to compress my games with such tight space I have.

 

[tueidj]

Memory card unlock testing round 2

Since libogc has always relied upon an illegally reproduced proprietary blob of DSP microcode (ripped from either the official SDK or a game) for memory card unlocking, I figured it was about time somebody worked out what it did and removed the need for it. So I reverse engineered the hash function and replaced the dsp blob in Daco's ctr-gcs build. The result is here; please test this with any memory cards (official or otherwise) and report the results. Mainly I'm only interested in the "raw backup" function, since it tests if the card can be read successfully (which is the important thing) and the other functions may have bugs related to how individual save files are handled - no guarantee that it won't corrupt your card if you try anything involving writing.
Raw backups made with this program can be renamed to memcard.bin and placed in /apps/gc_devo/ to be used with Devolution's memory card emulation.

 

[Deleted member 309205]

I can confirm that backing up a official 59 block memory card works! Thank you very much tueidj!

 

[Games Xtreme]

I also had to go back to USB loader GX r1191 because r1200 doesn't load games from DML without there being a disc in. Don't know why.

In USB Loader GX r1200 there's also an option "No Disc +" or similar. Had you tried that out?

 

[kupo3000]

I'm getting a 2.00 MB MemoryCardA.raw after dumping an official 251 blocks memory card.

-edit-

Another issue, getting a corrupted memory card message after booting any game with Devolution sample loader.

 

[tueidj]

I'm getting a 2.00 MB MemoryCardA.raw after dumping an official 251 blocks memory card.

That sounds normal.

Another issue, getting a corrupted memory card message after booting any game with Devolution sample loader.

Using an emulated card or a real card? Nintendo brand card or other? Slot A or Slot B? What does the loader say about the card when it starts?
If it's a real nintendo brand card, it should say the card is unusable (not corrupt). A fixed build of Devolution will be released in the future that can properly unlock official cards.
If it's an emulated memory card created from scratch it must be formatted by a game once before it can be used.
I hope you're not trying to use emulation with your 251 block memory card dump, because I specifically said only dumps from 16MB cards will work...

 

[Shano56]

Do certain HDDs still get corrupted sectors/clusters from using this?

has anyone else had this issue besides me and overjoY? tbh it could have been something else. I just said i suspected devolution because it was the last thing i did on my drive

 

[kupo3000]

Using an emulated card or a real card? Nintendo brand card or other? Slot A or Slot B? What does the loader say about the card when it starts? If it's a real nintendo brand card, it should say the card is unusable (not corrupt). A fixed build of Devolution will be released in the future that can properly unlock official cards. If it's an emulated memory card created from scratch it must be formatted by a game once before it can be used.
I hope you're not trying to use emulation with your 251 block memory card dump, because I specifically said only dumps from 16MB cards will work...

Yep, it was the emulated card dump from my Official 251 blocks Memory card.
Just in case the card data didn't get corrupted after using the modified ctr-gcs build.

 

[AppleCrow]

Same issue with an official 251 memory card.
Issue appends on each slot.
Actual fix is to show up memory card content on wii save menu before launching game through devolution.
(as for ctr-cgs dump)

 

[tueidj]

No, don't unlock the cards with the system menu if you're testing the build of ctr-gcs that I posted. That would defeat the purpose of the test.

 

[Etheboss]

lol, your build seems to backup and restore fine without unlocking it first with SM tueidj.

I tried it after Daco Taco asked me if i could check it for him too, it seems he was planning to look into it again, what a coincidence..

 

[Bryon15]

I also had to go back to USB loader GX r1191 because r1200 doesn't load games from DML without there being a disc in. Don't know why.

In USB Loader GX r1200 there's also an option "No Disc +" or similar. Had you tried that out?

Yes I had tried that. When I started a game it said something like "this version of DML no longer supports no disc mode, to play a game you need a disc in drive" When I tried to start a game anyway I got a DSI inception error. When I went back to r1191 it loaded games just fine without a disc being in.

 

[dronesplitter]

Confirming that the ctr-gcs you posted reads and dumps my official cards fine. I have a 59 and a 251.

 

[daxtsu]

Memory card unlock testing round 2

Since libogc has always relied upon an illegally reproduced proprietary blob of DSP microcode (ripped from either the official SDK or a game) for memory card unlocking, I figured it was about time somebody worked out what it did and removed the need for it. So I reverse engineered the hash function and replaced the dsp blob in Daco's ctr-gcs build. The result is here; please test this with any memory cards (official or otherwise) and report the results. Mainly I'm only interested in the "raw backup" function, since it tests if the card can be read successfully (which is the important thing) and the other functions may have bugs related to how individual save files are handled - no guarantee that it won't corrupt your card if you try anything involving writing.
If the backup is successful and your card is a 16MB card, you should be able to rename the dumped backup file to memcard.bin and use it with Devolution.

It doesn't seem to run properly for me; I get a code dump when I select dump raw image, then slot A, with my 251 offical card:

Spoiler

Exception (DSI) occurred!
GPR00 80012CF4 GPR08 746B6C00 GPR16 00000000 GPR24 80050000
GPR01 80100FE0 GPR09 FFFFFFFF GPR17 80101000 GPR25 80056944
GPR02 8005DD94 GPR10 80058888 GPR18 80056820 GPR26 8005696C
GPR03 FFFFFFFC GPR11 7374646E GPR19 80057410 GPR27 80056998
GPR04 800568D8 GPR12 22200024 GPR20 80056824 GPR28 800569C4
GPR05 00000006 GPR13 800616E0 GPR21 80056860 GPR29 800E0A60
GPR06 80808080 GPR14 00000000 GPR22 80056874 GPR30 800568D8
GPR07 80058884 GPR15 00000000 GPR23 8005688C GPR31 000001FF
LR 80012CF4 SRR0 80012d04 SRR1 00009032 MSR 00001000
DAR 00000033 DSISR 04000000

STACK DUMP:
80012d04 --> 80012cf4 --> 80028df4 --> 80028da4

CODE DUMP:
80012d04:  80090034 2F800000 419E0034 7FA3EB78
80012d14:  7FC4F378 7FE5FB78 7C0903A6 4E800421
80012d24:  8001001C 83A1000C 7C0803A6 83C10010

I'm running it off a USB hard drive, if it matters.

 

[OneUp]

It works fine for my official 1019 card even though it is on its way out because the Wii fried it. We can't test any official card dumps with Devolution because the biggest official card is 8MB. However, Dolphin's memory card manager was able to open and see the save files on the dump.

 

[daxtsu]

Are you guys who got ctr-gcs to work using SD cards to dump/backup the memory cards? Just curious.

 

[Lumstar]

It works fine for my official 1019 card even though it is on its way out because the Wii fried it. We can't test any official card dumps with Devolution because the biggest official card is 8MB. However, Dolphin's memory card manager was able to open and see the save files on the dump.

Have you tried using that 1019 card exclusively with an actual Gamecube? That should help tell whether there's actual damage rather than mere data loss.

What about testing Devolution with 2043 unofficial cards? (1019 is 64megabyte, not 8MB. Nintendo released just 50% the largest card they designed GC hardware to accept)

 

[SuperrSonic]

I got the same result that Kupo got with a 251, the raw dump didn't write properly; it doesn't work in Devo nor Dolphin's manager, however dumping as separate .gci images does work perfectly.

 

[tmv_josue]

I did a backup of an official MC of 251 blocks (2,048KB) and the Memcard manager of Dolphin shows the save files correctly so I guess it's okay.
Certainly that card never had problems with Devo.

....(1019 is 64megabyte, not 8MB)

Actually is 8MBytes = 64Mbits

 

[Etheboss]

Are you guys who got ctr-gcs to work using SD cards to dump/backup the memory cards? Just curious.

i ran ctr-gsc from hdd, but with a SD card also in the wii, and ctr-gsc saved the dump on SD in a subfolder..

The "save to" is prolly hardcoded to SD somewhere...