Homebrew Saturn emulation using Cotton/Guardian Force testing and debug

[ZER-O]

I'm sounding like a broken record here and i'm sorry but if someone can get me through here i would be more than happy. I'm stuck in Virtual on control device select screen. I'm unaible to select player 2 cotroller type. I use my joycons and they do work but this game refuses to exept my red joycon as player 2 so i can't get past this.

you need to setup controller 1 and controller 2, then you can start the game

 

[Levine91]

This is the current romfs along with a screenshot of my cotton2.cue

I didn't touch the .ini file so it's the original encrypted Cotton2_Switch.ini

I used NXDUMPTOOL to dump the romfs

FYI I'm on
System 12.1.0
Atmos M.19.5 EmuMMC

The content folder I have for Cotton 2 is 0100A18015268002 where you have 0100A18015268000 for some reason.. not sure how that is but that might be the problem

EDIT: You may have dumped the wrong romfs file now that I'm looking at NXDumpTool again.
You should have dumped just the 3rd listed option which shows (ID Offset: 2)

 

[helvetinperkeles]

you need to setup controller 1 and controller 2, then you can start the game

I have done that but soon as i boot the game i cant use the red one.

 

[ZER-O]

I have done that but soon as i boot the game i cant use the red one.

it was mentioned in the Tested list in first page,
i Quote:
Virtual On: Cyber Troopers (USA) - Perfect? (For some reason the game initially makes you confirm 2 controllers before the start screen. However you can progress as normal in single player after this. No other issues)

i have not tried this game as i have Virtual-On Oratorio Tangram for Dream Cast FlyCast Version on my Switch and i consider it the Ultimate Version of Virtual On

there is another game on PsVita (A Certain Magical Virtual-On) with Humans in it.....

 

[helvetinperkeles]

it was mentioned in the Tested list in first page,
i Quote:
Virtual On: Cyber Troopers (USA) - Perfect? (For some reason the game initially makes you confirm 2 controllers before the start screen. However you can progress as normal in single player after this. No other issues)

i have not tried this game as i have Virtual-On Oratorio Tangram for Dream Cast FlyCast Version on my Switch and i consider it the Ultimate Version of Virtual On

there is another game on PsVita (A Certain Magical Virtual-On) with Humans in it.....

But i just want this one. It's one of my favourite games . Maybe it needs pro controller to work

 

[Thorhax]

The content folder I have for Cotton 2 is 0100A18015268002 where you have 0100A18015268000 for some reason.. not sure how that is but that might be the problem

EDIT: You may have dumped the wrong romfs file now that I'm looking at NXDumpTool again.
You should have dumped just the 3rd listed option which shows (ID Offset: 2)

Weird
I dumped the 3rd file.
Also my nxdumptool shows 0100A18015268000

 

[ZER-O]

But i just want this one. It's one of my favorite games . Maybe it needs pro controller to work

i have found a way to inject the games into separate Custom Cotton2 Title ID, the App that does it is Private
if someone willing to share a public alternative to separate the games, then ill make you a pack with pre made RomFS with an NSP Forwarder

if a methood is shared, i will look into making a Tutorial for repacking the Whole Saturn Game inside the NSP instead of using RomFS with premade icons with saturn game covers for HOS menu

this is possible the same way Mario 64 Port NSP was done or AM2R NSP

i prefer if a Wizard can extract the emulator and repack it as an NRO emulator

for now i am researching something else, how to remove the intro Logos from Unity Frontend side before the Emulator starts, so far i found its possible with the leaked SDK tool

 

[Levine91]

Weird
I dumped the 3rd file.
Also my nxdumptool shows 0100A18015268000

Right as that's the actual TitleID of the game. Shows that for me as well. But dumping the 3rd option provided me with the "...8002" folder (hence the TitleID Offset = 2)

 

[Thorhax]

Right as that's the actual TitleID of the game. Shows that for me as well. But dumping the 3rd option provided me with the "...8002" folder (hence the TitleID Offset = 2)

oooooh, ok, learning something new everyday. giving it a try

 

[Levine91]

i have found a way to inject the games into separate Custom Cotton2 Title ID, the App that does it is Private
if someone willing to share a public alternative to separate the games, then ill make you a pack with pre made RomFS with an NSP Forwarder

if a methood is shared, i will look into making a Tutorial for repacking the Whole Saturn Game inside the NSP instead of using RomFS with premade icons with saturn game covers for HOS menu

this is possible the same way Mario 64 Port NSP was done or AM2R NSP

i prefer if a Wizard can extract the emulator and repack it as an NRO emulator

for now i am researching something else, how to remove the intro Logos from Unity Frontend side before the Emulator starts, so far i found its possible with the leaked SDK tool

UGH! I was searching for the Custom TitleID solution for hours and hours today.
I hope that the app becomes public or another comes out as you mentioned

 

[Purple_Shyguy]

Just a reminder for people. You don't need to actually dump anything.

Just make a game title folder (change last digit 6 for collection/2 for standalone) > romfs > drag and drop your .bin and rename the .cue file

That's it. No dumping required.

 

[helvetinperkeles]

My dream is that i can have Nights, Virtual on and Worldwide soccer 97 games as separed games on Switch homemenu all with there right images and infos. That would be so damn cool. But off course main thing is that i can play those. Exept this damn virtua on

 

[Levine91]

If anyone wants to investigate this further, possibly mess with the .ini config, I've discovered an oddity going on with Rayman (USA) and Rayman (Japan). Both in the main menu and in-game, any directional input, even very slightly, causes a VERY rapid response in whatever direction. Basically breaks the game as a result.

I'll update my compatibility post noting such, as well as adding a few more successfully emulated games.

 

[ZER-O]

Just a reminder for people. You don't need to actually dump anything.

Just make a game title folder (change last digit 6 for collection/2 for standalone) > romfs > drag and drop your .bin and rename the .cue file

That's it. No dumping required.

you forgot to add the effort that was made to remove the lower corner menu and decrypted Settings.ini for Widescreen and 4mb ram! i guess we can just drop those .Tex / .ini in their respective file structures

 

[ZER-O]

Delete

 

[helvetinperkeles]

after i finish playing metroid, maybe ill PM you a repacked NSP for Nights and Christmases Nights

That my friend would be very genereous deed and highly appreciated

 

[Deleted member 323844]

has anyone tried to get 5 player saturn bomberman to work on this?

Only two gamepads are active once you launch the game. There must be a way to do that, since the emulator should support 8+ players, but I don't know how.

 

[Deleted member 323844]

Another bunch of games tested.

I'm not sure if there's any point on testing them, since the games that work without crashes have always flawless performance, with different degrees of input lag.

New non-working games:

FIFA: Road to World Cup 98. It crashes right before the match, after the menus. But it happens randomly, sometimes you can see a bit of the gameplay.
Gex: Enter the Gecko. It crashes after the first screen.

Now I'm playing them with the 4MB cart. More extensive testing should be done with other carts and tweaking the ton of options that the config file offers. Both games work out of the box on Windows SSF, so it should be a Switch port issue.

 

[shadow256]

Personally I'm hoping either @EddCase or @shadow256 can possibly assist or shed some light on how we can make the injection or changing of the TitleID possible since they've worked on the GUI for NSP Forwarder which has been tremendous in other scenarios.

I've been trying for hours to find a way to just change the TitleID, but I feel like my limited knowledge is just making me hit a brickwall on that one.

To change the TitleID you must set it in the "main.npdm" file and in the "control.nacp" file (in the "control.nacp" you could also change the name and publisher of the game, also you need Hacpack to repack the game into a NSP but it need some extra steps to rebuild the NCAs before repacking into a NSP. I have a script that could repack GameMaker games like that, with some modifications I think I could adapt it for this, when I find some time I will try to investigate.

 

[Levine91]

To change the TitleID you must set it in the "main.npdm" file and in the "control.nacp" file (in the "control.nacp" you could also change the name and publisher of the game, also you need Hacpack to repack the game into a NSP but it need some extra steps to rebuild the NCAs before repacking into a NSP. I have a script that could repack GameMaker games like that, with some modifications I think I could adapt it for this, when I find some time I will try to investigate.

It'll be very much appreciated! Thanks!