Written by cafealpha 4 comments
As usual I'm not very on time for sending my best wishes but I hope that everyone spent a nice Christmas and are appreciating winter vacations To add even more fun to theses vacations, I'm happy to announce that latest flavor of Pseudo Saturn Kai is -finally- publicly available !
To be frank, there are no new major feature for Pseudo Saturn Kai in this release : the most important news is not hidden in Pseudo Saturn Kai itself, but in Save Data Manager, with a new edition of Dezaemon 2 Save Game Manager, featuring 11 new opus !
Regarding this new edition of Dezaemon 2 Save Game Manager, I really want to thank each respective contributor for their passionate work in shmup creation : - mk2, designer of DAIOH Huricane Special - WANG, designer of Houkou Tiger
Also featuring screenshots gallery of DAIOH Hurricane
I also would like to give a special thanks to Dezaemon DB (wiki) for all his support around floppy disk emulation in Gamer's Cartridge and motivating me in developing a new blend of Save Game Manager for Dezaemon 2, which then turned into Save Game Manager 3 (released on last Winter) and Save Game Manager 4, freshly releasing right now. Unfortunately I didn't received any news from Dezaemon DB for more than two years, but I continue to believe he will be back in action in Dezaemon community someday.
Regarding Pseudo Saturn Kai itself, majority of changes in this release concern fixes in automatic game loader and cheat codes list. So if previous version of Pseudo Saturn Kai installed on your cartridge are working fine with your favorite games library, then ... theses games will continue to play fine with latest version.
All theses improvements were directed by privateye, who really deserve warm thanks for this huge work !!
It's a big task to get a project working more or less correctly as it was in previous releases of Pseudo Saturn Kai. But it's an even bigger task when trying to fix all the little details around that project Without privateye, Pseudo Saturn Kai certainly wouldn't had its edges polished so well
And, Gamer's Cartridge users may appreciate that a problem sometimes happening when retrieving Saturn date and time has been fixed in this release.
This bug was introduced in previous (6.314) version because I didn't checked enough side effects of modification done at that time to add support for wireless pads.
Concretely speaking, this fixes the file time stamp of save data files as well as folder naming (which is based on Saturn date) when dumping save(s) to SD card.
Except that, Gamer's Cartridge support is equivalent to previous version, so if you don't want to brick your Gamer's Cartridge (risk is super low, but I can't assert it to be zero), then continuing using previous version may be a wise choice. After all, rather than upgrading to latest firmware, the most important is to play your favorite games
Additionally, I'm also sometimes asked what kind of cartridge is required to play Dezaemon 2 games. The answer is both simple but also a bit complex too, so maybe it would be a good idea to write about it in this blog
The simple answer is "DZ2SGM3 is compatible with any cartridge providing in-game backup memory feature". → DZ2SGM3 was developed simply as an application using standard backup API detailed by SEGA and should work with any cartridge supported by this standard backup API.
Even if I'm the main developer and manufacturer of Gamer's Cartridge, that's not a reason to restrict my software projects to this specific kind cartridge I kept support for a wide range of backup devices for the simple reason that it's cool to make more and more people appreciating games on Saturn
The complex answer comes from the two following points : - There are many kind of cartridges, and not all provide in-game backup memory - As DZ2SGM3 is not an official application, it is required for the Saturn to be able to boot applications from CD-R
Rather than writing boring theory about the internals of each kind of cartridge (is there somebody other than me interested in that ?), let's simply detail the compatibility status and the pro and cons and also the additional requirements needed to get DZ2SGM working for each kind of cartridge
① Official Memory Cartridge That's the official memory cartridge, sold by Sega during the good old times Saturn was still a commercial product. Because of that, production of theses cartridges stopped around 20 years ago and consequently cartridges available today may damage easily. The only advantage is that it's an official product, made with genuine electronic parts ... but it's now a bit too late if you want any official support for repairing a broken cartridge It's not possible to install Pseudo Saturn Kai on such kind of cartridge, so additional mod (installation of modchip or ODE) is required to use DZ2SGM.
Pro : Official product from Sega. Cons : Contents may suddenly corrupt : don't use to store important save data. Additional requirement : modchip or ODE
② Action Replay The super famous Action Replay : main advantage is from being relatively cheap, widely available, and to provide 1MB/4MB expansion memory.
Disadvantage is that technology used in theses cartridge didn't changed significantly for the last 20 years and that in the meanwhile production of this technology (flash ROM and RAM) stopped. For that reason, quality may not be at the meet even if cartridge is sold as "brand new".
In-game backup memory feature is not available for such kind of cartridge : even if advertised as featuring "4M memory card", this is available only from cartridge :games aren't able to access it. Additionally, this "4M memory card" is a bit ambiguous because it refers to the best effort when save data buffer (internally stored in cartridge 4M expansion memory) can be compressed into lower half of cartridge flash ROM = 128 KB ... if data can't be compressed then an error message will be displayed. It would had been more honest to advertise that as "Guaranteed 128KB, maximum 4MB memory card not accessible from game", but this is a bit less sexy in term of advertising
Because of the lack of in-game memory feature, it is required to use a separate backup device (such as Saturn floppy disk drive) to use DZ2SGM.
Pro : Widely available, relatively cheap, and provides 1MB/4MB expansion memory. Cons : In-game backup memory feature not supported. Additional requirement : Saturn floppy disk drive.
③ Gameshark, and other clones That's Action Replay without 1MB/4MB expansion memory and usually worse overall quality : if you have one still working, it is worth trying to use it but if that's not the case then considering for (at least) an Action Replay is usually wise decision.
Similarly to Action Replay, because of the lack of in-game memory feature it is required to use a separate backup device (such as Saturn floppy disk drive) to use DZ2SGM.
Pro : Worth using if you found a spare cartridge still in working condition. Cons : No 1MB/4MB expansion memory. Poor hardware quality. Additional requirement : Saturn floppy disk drive.
④ Memory Card Plus That's more or less a Gameshark with a specific firmware installed. Main advantage of this firmware is that it allows games to directly access cartridge backup memory.
Similarly to Gameshark, hardware quality is questionable, which makes backup memory to be easily corrupted. Additionally, backup memory capacity is around 200 KB so that it usually can't handle more than three Dezaemon 2 user games. Installation of Pseudo Saturn Kai will remove backup memory feature, so additional mod (installation of modchip or ODE) is required to use DZ2SGM.
The little side story about this cartridge is that its unique way of handling backup memory gave me the idea and motivation to develop Gamer's Cartridge Back in end of 2012, I thought only mapped memory chip could be accessed as in-game backup memory. But seeing that this cartridge was featuring only boot ROM (I tried to dump backup memory ROM, but didn't found anything there and instead there was a small firmware and save data stored in boot ROM area) made me realizing that anything could actually be shown as backup memory device to a game, which was the start point of Gamer's Cartridge project.
Pro : This gave me the idea to develop Gamer's Cartridge ! Cons : Access is not so reliable : whole contents can be wiped after writing one save there. Installing Pseudo Saturn Kai removes the memory cartridge feature. Additional requirement : modchip or ODE.
Major disadvantage is that similarly to Action Replay and official memory cartridge, technology used didn't changed significantly for the last 20 years and that in the meanwhile production of this technology (flash ROM and RAM) stopped. For that reason, quality may not be at the meet even if cartridge is sold as "brand new".
Additionally, similarly to official memory cartridge there is only limited save data integrity check available (file system is rudimentary, and only the first bytes of the ROM are check to verify if a backup memory cartridge is available or not), which is a design flaw from SEGA : it works fine in ideal conditions of cartridge correctly inserted and ROM not corrupted, but will ask to format the cartridge in all other cases. That's acceptable if you just want to copy save data (there are plenty available in Pseudo Saturn Kai Save Data Manager, so have fun with them !) and play a little to a game, but not recommended if you want to play a RPG and won't stand to suddenly lose all your progression in the game.
Pro : Both official Memory and Action Replay in a same cartridge. Cons : Contents may suddenly corrupt : don't use to store important save data. Additional requirement : none.
⑥ Gamer's Cartridge Well, that's my own cartridge project, so my opinion may be a bit biased, but it's recommended if you don't want your saves to be corrupted : as SD card file system is used, it is significantly stronger than the file system used on official memory cartridge. It is also handy if you want to backup or share your save data because exporting saves to PC can be done by simply copying files from SD card.
Additionally, it features virtual floppy disk device support, which doubles the number of Dezaemon 2 user games simultaneously available : it is limited to 5 games with other backup memory cartridges (and count may be lower because of ROM size limitation) while a total of 10 games (5 on cartridge device, and 5 other ones on virtual floppy disk) can be handled by Gamer's Cartridge.
Moreover, DZ2SGM can be accessed directly from SD card so that there's no need to swap between DZ2SGM CD-R and Dezaemon 2 CD-ROM. Major lack of this cartridge is the non-availability of expansion RAM. Also, as SD card access is not super fast, save data access is a bit slower than on other cartridges.
Pro : No risk of losing saves because of data corruption. Data can be easily backed up to PC or shared with other gamers. Cons : Limited availability. 1MB/4MB expansion memory not available. Additional requirement : none, and DZ2SGM can be run from SD card.
DISCLAIMER : play Dezaemon 2 (and other Saturn games) at your own risks ! I'm not responsible of any eventual damages caused to your save data, you Saturn, your cartridge, your dog or anything else !
SMALL REQUEST : I don't have the budget nor the free time to test DZ2SGM3 on all combinations and variations of cartridge and ODEs. So it would be very appreciated to receive feedback about if it works on your own Saturn setup
Feedback can be left by simply adding a comment at the bottom of this article : it is free, doesn't requires any kind of registration, and takes something like 5 minutes to be written ♪ In advance, thank you for the feedbacks
I was recently asked about the instructions to compile Pseudo Saturn Kai from sources archive provided with Pseudo Saturn Kai binaries, so let's write a short blog article to make things clear to everyone.
The simple answer is : Pseudo Saturn Kai can't be compiled with theses sources.
End of simple answer. Those who want more details can refer to the few lines below.
Technically, some sources files are missing from source archive, preventing someone from opening sources archive, making some few changes, and installing it on a cartridge.
Why ? For the simple reason nobody won't help me if ...
Some dude takes sources, change logo and credits page and then release this as "Pseudo Saturn Kai Gold Edition made by some dude".
Some dude adds a major new feature to Pseudo Saturn Kai, and start doing business by making this firmware (and the cartridges compatible with it) available for paying. This dude will eventually forget to release any source, but who care about that except me and few other nerds ...
Maybe I would be told this I'm overthinking, but case 1 and 2 above already exist. Theses are detailed in another blog entry, and deserve a look if your time allows it.
Concretely speaking, there is one model using Pseudo Saturn sources (whose sources are fully available, and with build instructions too), hacked to don't show any startup menu (why not would you say, it's more convenient for the consumer), and consequently not showing any credits nor any mention it was made from Pseudo Saturn ... why not would you say, but that's a massive NO for me, and the Pseudo Saturn team will certainly not appreciate that too.
Some other projects are using fancy case and label instead of Action Replay ones (I'm OK with that, especially because Action Replay design guidelines are completely outdated), but don't mention anything about Pseudo Saturn Kai on their covers and labels until booting the cartridge and discovering ... a vanilla version of Pseudo Saturn Kai without any mention of the fancy product name advertised on the cartridge box and label I'm sorry for the consumers who were expecting firmware design to be unified with cartridge box and label : this wasn't done because some few files are missing in Pseudo Saturn Kai sources !
This case of "some people are making money from rebranded homebrew projects" is also detailed on Segaxtreme forums, which deserves a look if your time allows it.
The thread there is not by me, nor about Pseudo Saturn Kai, so I hope how real the fact is that there are people making money from other people's hard work ... that's maybe normal in any work place (), but that's a dick move in such a small Saturn homebrew community.
To sum up the bulky paragraph above, the way of sharing Pseudo Saturn Kai source code is not how it works in free software world.
In an ideal world, everybody share source code, and everybody other make contributions, and the project is getting brighter by brighter. So if the story stops here, I'm the bad one, but in real world, people deface the credits page, rebrand the projects under fancy names and start making cash and show business from projects they didn't contributed on ... Maybe it's selfish from me, but I don't want that and consequently removed few files from Pseudo Saturn Kai source code.
And if I may add an additional paragraph about Pseudo Saturn Kai, I would like to say it is quite open in the magic world of application to play games on Saturn real hardware : modchips are completely closed-sources, ODE too. In Pseudo Saturn Kai, the sources of the exploit to play CD-Rs, as well as the ones to redirect memory devices to SD card are available. The source code of the implementation of cheat codes engine is available too. I coded it from scratch because sources of Action Replay firmware are not open source ...
To add a bit of melodramatic taste to this blog article, I would like to say I spent the last four years developing Pseudo Saturn Kai.
I didn't asked for any payment about it. The next day after I received a $5 donation for it, I changed my donation page from "send money here if you want" to "send me kind message or a comment on my blog".
While four years seems a long period for just two or three features, you probably may want to look at Pseudo Saturn Kai credits page, and all the people who contributed to it. Theses two or three feature are not the kind of thing someone develop, test, re-test, fix, and keep testing more and more during a weekend. From my own experience, normal people don't continue development so far and just give up development after a couple of weeks. And, I won't appreciate this credits page to be defaced. Not for my nick to be removed (I'm listed there only one time), but for the respect to all the contributors being lost.
And while I developed custom cartridge using Pseudo Saturn Kai, I kept support for Action Replay cartridge and their clones. That may sound obvious, but technically speaking it isn't, mostly because Action Replay have limited ROM size. At some point of Pseudo Saturn Kai development, I hesitated to put cheat codes feature in a ROM portion larger than current one, but unavailable from Action Replay cartridges. This would had made more cheat codes available, but the feature itself usable on Gamer's Cartridge only. I choose to keep a reasonable size for cheat codes list, so that it would be available for everyone on Action Replay cartridges
Words count for this initially expected "short" article is about to reach four digits soon (it's 827 words now), and as I doubt a lot of people will read it entirely, it's probably time to conclude :
No full sources for Pseudo Saturn Kai
If you want to make you own Saturn cartridge firmware, then feel free to use Pseudo Saturn sources as a starting point.
Feel free to technically refer to Pseudo Saturn Kai source code, and to merge whatever you find interesting there to your project.
Still begging for Pseudo Saturn Kai full source code ? No problem, I shall make it available to everyone ... if there's not a physical disaster on my dev laptop or its SSD in the meanwhile.
At that time, this will definitely be the end of Pseudo Saturn Kai development. For you, and for me too.
The kids are currently on winter holidays, I don't want unexpected and messy task at work before entering new years holidays, so today was spent at movie theater with kids
We went to see Dragon Ball Super - Broly, and it was cool !! I really appreciated the "フリーザー！「カコク」ってなんだ！？" from Goku just after Freezer used "過酷" word in a dramatic scene
So well, it seems it's the good moment to announce a new public section in my homepage, which is about Dragon Ball cards
More than 15 years ago (but it feels like last week ... I'm really getting old !), I spent many afternoons in scanning my collection of Dragon Ball cards, and then put everything on a CD-R ... because internet was paid for each minutes connected, and my maximum transfer speed at that time was around 7KB/s, hence not suitable for uploading hundreds of megabytes of data
All theses limitations are no longer a problem, so please enjoy my digital cards collection
Broly when I was a kid
Oh, I forgot to say that everything in more or less in its original state, including the html, so in advance I'm sorry for any reaction to Comic Sans MS font and flashy image background Also, the textual contents are left as-is in omelette du fromage language
But ... there's currently a bug so I shall re-release it soon
After everything will be fixed and verified, I shall make a proper announcement in this article, so if you don't want to flash your cartridge twice, please keep tuned for one day or two !
Edit (2018/12/31) : version v6.274 was released a couple of a days ago, and so far I didn't received major claims about it, so let's consider this version a stable one ! Please find below an overview of the changes and additions in this release.
What's new in Pseudo Saturn Kai v6.274
Automatic Game Loader
So far in Pseudo Saturn Kai 6.074, user had to choose which game loader to choose before starting a game, but this is now done automatically on Pseudo Saturn Kai side. There's no magic around this feature : it just uses a list of games not compatible with CWX loader, and decides accordingly
Pseudo Saturn Kai boot menu
No need to worry about which loader to choose ♪
That's a big addition for this release. Its development spans around June 2017 to Spring 2018. The main features for cheat codes are :
Built-in : don't need to manually enter the cheat codes
User friendly : just push X button when booting a game, and then select the cheat(s) to enable.
Maintained by cafe-alpha () : rather than adding an "enter cheat codes by yourself" feature, I plan to continue improving and maintaining the cheat codes list
Back in 2015, I added a stub of alternate rmenu to Pseudo Saturn Kai, but didn't had the technical information regarding Rhea/Phoebe API so the feature was disabled in its unfinished state. And this summer, an enthusiast friend helped a lot to get this technical information, so that I could finally finish this feature Development of this feature was an occasion to bring usage of proportional font in image selection menu, thus showing more information on a single screen. Base of menu module was developed around 2010 without any consideration for proportional font, so development of this side feature was a nightmare, but I don't regret for having done it now it is finished
Image selection menu for Rhea/Phoebe ODEs
Dezaemon 2 Save Game Manager 3
Dezaemon 2 is a shooting game maker application for Saturn. And Save Game Manager is a collection of user games for Dezaemon 2. By the past, there were two volumes released by Madroms : SGM1 in 2007 and SGM2 in 2008. And 10 years after that, SGM3 is released and contains some new user games as well as all the games from SGM1 and SGM3 : one SGM to rule them all
Special thanks to Dezaemon DB for gathering a community around Dezaemon 2, and dumping the user games
A stylish logo for Pseudo Saturn Kai
That's maybe a detail, but that was really missing from a long time ! Special thanks to Alien^PDX for the logo, and CyberWarriorX for putting me in touch with him
Pseudo Saturn Kai logo, 2017/12/31
Yes, taken one year ago !
In-game connectivity for USB dev cart
This uses cheat codes routine, hence requires at least a valid master code to be set. It can do USB connectivity while doing transfer with PC, but that's a bit slow (because of unoptimized C running from cartridge ROM), and consequently may cause glitches on some games.
As a countermeasure, there is another mode who does only USB connectivity (hence no cheat codes) but does it fast since the code for it is written directly in assembly and running in RAM.
That may be cool for game hacking, or looking for new cheat codes ... but I still need to add a proper cheat codes finder feature on SatLink before looking for cheat codes on my favorite games
to work correctly with Pseudo Saturn Kai cheat codes
Virtual Memory Cartridge support via USB dev cart
This is similar to "Virtual Memory Cartridge" used in Gamer's Cartridge, but access save data files on PC via USB dev cart instead of SD card.
That's convenient for save data hacking, or testing several saves, but for normal use then using SD card is (in my opinion) a better choice.
As a consequence, full firmware can now be installed on USB dev cart. But cartridges not using SST39SF040 flash chips are not supported (because there's not enough room in flash ROM) and in that case only lite firmware can be installed.
Written by cafealpha 3 comments
This article is not about my own development experience, but from my friend XRider. Thanks a lot to him for the good work and the permission to share his pictures
First, what is a X-Terminator cartridge ? It is a Saturn flash cartridge which provides the following features : - 1MB expansion RAM - Backup memory - Ability to play import games - Cheat codes - Ability to search cheat codes by using standalone "X-Assist" unit
X-Terminator cartridge and X-Assist Image taken from SegaRetro
X-Assist is particularly convenient because unlike Action Replay cartridges, it doesn't requires connection to a PC : it is true that connection to a PC provides more features (such as memory access, program upload, etc), but as "connection to PC" basically means "software support will be dropped someday", a standalone unit is a real treasure For example, do you remember that Action Replay cartridges initially had DB25 connector ? This was for connecting the cartridge to PC via the -sold separately- Comms Link board, whose used now obsolete ISA port, and consequently not supported on nowadays PCs and/or OS. There are some alternate solutions for connecting Action Replay to PC, whose major one is USB Data Link, but unfortunately it doesn't provides any software support for advanced features such as cheat codes search and testing. So if you want to search cheat codes for your favorite game, X-Terminator is a good choice ! ... Okay, the user interface is in Japanese, but that's just a detail : after 200 or 300 hours learning about it, it shouldn't cause any problems
On the other hands, the major limitations are probably the lack of 4MB expansion RAM support, and using flash ROM for storing backup save data (which on the long term may brick the cartridge), but for a cartridge developed more than 20 years ago, theses limitations are quite honorable
So, once upon a time, XRider found a X-Terminator cartridge. It was a cheap auction, but on the other hand the cartridge didn't boot anymore, and the X-Assist unit wasn't included
Normal people would add this cartridge to their collection or put it on display as a decorating vintage objet Other people with engineering and electronics education background would put it on their "to repair someday" cardboard, and don't touch it for the next 20 years because they are busy with other projects or work, or real life, or all of theses at once
But XRider is none of them. XRider owns soldering tools. And knows how to use them. And really wants to fix this marvelous cartridge
So, let's try to fix the cartridge ! The first step would be to start with the most common problem, which is broken flash ROM. In my opinion, this is the most difficult step, because it requires to desolder two chips for a total of 64 pins ! I personally can't do this because of lack of appropriate tools, so the alternate desoldering way I would had used would be to ... use a nipper and cut each pins
Fortunately, XRider likes work well done, so theses chips were removed in a clean way
X-Terminator cartridge, with flash ROM chips removed. Additionally, all capacitors are removed too : that's the occasion or never to replace them
Next step is a bit optional, and is about to dump removed flash ROM chips with flash ROM dumper device. This is the best way to verify if failure is due to corrupted flash ROM chips, and if still in working condition, this at least would be an occasion to dump the cartridge's firmware
Flash ROM chip on dumper device.
Dump is full of 0xFF bytes ... unless a miracle happens, theses flash ROM chips are no longer functioning But, this comforts us regarding initial supposition of broken flash ROM chips causing cartridge not booting
Just in case of, let's verify PCB traces around flash ROM chips while theses are removed : this takes only 5 minutes to check, and it would be frustrating to find that cartridge was not working because of broken trace after soldering new flash ROM chips
PCB traces : just requires a light source strong enough to be seen
What to do next ? Maybe use PLCC sockets so that future replacement of flash ROM chips would be easier ! That's a couple of weeks to wait for the postman, but worth the wait
PCB with PLCC32 sockets soldered
And then, simply replace the flash ROM chips
Next generation is here !
PCB with new flash ROM chips. Additionally, new capacitors are populated
One last step remaining ! Flash ROM is mounted, but ROM itself needs to be set up with X-Terminator firmware. The simplest way to do this is to use Pseudo Saturn Kai flasher utility : it obviously allows to install Pseudo Saturn Kai, but also several other legacy firmwares in the case someone would want to revert to initial firmware after trying Pseudo Saturn Kai.
Just select the ROM version you want to install, and follow on-screen instructions
Flashing in progress ! Will it work after that ?!
Yeehaw !!! It boot fine, mission done Let's try with Metal Slug ... Metal Slug works too ! So it seems there's no need to replace RAM chips
Everything finished ? No, there is a side quest remaining Among the couple of X-Terminator cartridges XRider owns, one X-Assist (pad and LCD unit used to search cheat codes) is missing. One X-Assist available ? And another one missing ? No problem : let's reverse engineer the first one and DIY the second one
The X-Assist features two PCBs : one for connection interfacing and pad, and another one for LCD, as pictured below.
X-Assist pad/interfacing board X-Assist LCD board
The LCD board is incredibly complex, but since it was manufactured as a whole and can still be purchased on auctions or second-hand market nowadays, there's no real interest to build it from scratch ! And I personally wouldn't try : that seems too much complex
So remaining is pad and interfacing board : fortunately it uses standard components and not any Gate Array Logic-ish components that would need to be reverse-engineered too. Simply speaking, it's like assembling LEGOs Multi-meter, a LCD board, electronic breadboard, a bunch of wires, few electronic components ... is there something missing ? Yes ! A LOT of motivation !!
X-Assist DIY prototype, in all its glory
It's so beautiful it deserves another picture !
Let's try for real ! Of course, after verifying any eventual short-circuit with a multi-meter No short-circuit ? It's then ready for the "first-lighting ceremony" (火入れ式), as it is nicknamed in my neighboring ... I don't know if that's a common expression in Japan or anywhere else, but I like its naming anyway
No sparks ? No smoke ? That looks good
At first glance, that seems working ! Let's try cheat codes search feature in order to be 100% sure ...
Search unit not found ?!
Arg, it was too early to sing victory X-Assist seems not being correctly detected by X-Terminator cartridge ... Since text could be sent to the LCD, let's assume nearly everything is working correctly, and that a small detail is causing this trouble ... after some head-scratching, XRider found what's wrong : a Zener diode that initially looked useless was used to return some ACK to X-Terminator cartridge when looking for its connection !
The X-Assist screen after adding the Zener diode : code search memory could be captured !
65535 candidate codes ?! I'm not sure if correct cheat code could be found this time, but at least the DIY X-Assist unit works correctly now
Additional informations are available in French on Darius forums :