Homebrew Saturn emulation using Cotton/Guardian Force testing and debug

cucholix · Oct 21, 2021

AyanamiRei0 said:
I'm going to ask again does anyone know how to make the tex images this uses I'd like to make actual good looking injects.

It’s simple, you need to create a 1920x1080 pixels .png (use compressed slow saving), the file must not be higher than 3mb.

Open your .png with HxD editor (or your preferred hex editor) and paste insert this:

Code:

00 40 00 00 01 00 10 08 2D C6 C0 00 80 07 38 04

Just before the %PNG header, save as .tex and you are done.

SpaceJump · Oct 21, 2021

Levine91 said:
You may try to OC the game a little (even more if you havent already) to see if this helps

Holy shit, OC solved the issue :grog:

Levine91 · Oct 21, 2021

SpaceJump said:
Holy shit, OC solved the issue

Just to help those out in the future, what clock setting did you put?

botik · Oct 21, 2021

Utility on python3 png2tex
Drag and drop on utility any PNG file. Exit - tex file

fagnerkof · Oct 21, 2021

Prb said:
its really not that difficult
makes sure you have the latest Ultimate-Switch-Hack-Script-master
on your pc desktop just make a folder named rom no () or ... or anything else just a simple folder name
place the Guardian_Force_Saturn_Tribute nsp in the rom folder make sure its the standalone game not the 3 in 1 as the 3 in 1 does not work with the current Ultimate-Switch-Hack-Script-master
place your prod.keys and title.keys in the Ultimate-Switch-Hack-Script-master folder just for convenience
place your saturn game in the rom folder bin and cue again no () or ... or anything else just a simple name like Sega Rally Championship.bin rename your Sega Rally Championship.cue to GuardianForce.cue

now run the script make sure settings are correct font lucide console blah blah
press continue
select n if you have the latest version
then 2
then 6
then 16
then n
this gets you to the injector
now press 2
press continue and select Guardian_Force_Saturn_Tribute nsp
press continue and select rom folder or whatever you named it
press continue and select prod.keys in the Ultimate-Switch-Hack-Script-master
press continue and select title.keys in the Ultimate-Switch-Hack-Script-master
just keep pressing n at this point until you get to ID: the just press continue
name your nsp keep it simple like Sega Rally 95 and press continue
name author again keep it simple like Sega and press continue
name version something like v1 and press continue
press continue now choose folder best to just save nsp in the rom folder
select y
let it build nsp just ignore the key errors i did and it still works just fine

once you have mastered the basic injection process you can start playing with icon/tex/wp and so on
hope this helps

massive thanks to @shadow256 for the script hope this saves you a load of question
and to the op @lisreal2401

I give up. After a lot of tries, tried this literally step by step, with fresh keys generated after the single Guardian Force nsp installed. Got the usual "Failed to match keys" errors in log, ignored. Generated nsp, boot on yuzu showing the error 2002-0001 but doesn't starts the game, only the wallpaper stuck at the screen. Installing on switch is ok, but title got unbootable. Tried with a bunch of games and all the same output. I guess I'll have to wait people share their working nsps online or a good improvement on this saturn function for the USHS

SpaceJump · Oct 21, 2021

Levine91 said:
Just to help those out in the future, what clock setting did you put?

I used 1428 Mhz.

Levine91 · Oct 22, 2021

fagnerkof said:
I give up. After a lot of tries, tried this literally step by step, with fresh keys generated after the single Guardian Force nsp installed. Got the usual "Failed to match keys" errors in log, ignored. Generated nsp, boot on yuzu showing the error 2002-0001 but doesn't starts the game, only the wallpaper stuck at the screen. Installing on switch is ok, but title got unbootable. Tried with a bunch of games and all the same output. I guess I'll have to wait people share their working nsps online or a good improvement on this saturn function for the USHS

1. What game are you trying to run?
2. Can you send a screenshot of the log right before it builds the NSP?

Thorhax · Oct 22, 2021

fagnerkof said:
I give up. After a lot of tries, tried this literally step by step, with fresh keys generated after the single Guardian Force nsp installed. Got the usual "Failed to match keys" errors in log, ignored. Generated nsp, boot on yuzu showing the error 2002-0001 but doesn't starts the game, only the wallpaper stuck at the screen. Installing on switch is ok, but title got unbootable. Tried with a bunch of games and all the same output. I guess I'll have to wait people share their working nsps online or a good improvement on this saturn function for the USHS

I'm curious about the keys you're using. It seems like that's where you're problem lies, at it was my problem for awhile.

First you need to install the original noon modded nsp of cotton 2, guardian force onto your switch.
I suggest to emuMMC.

2nd you need to dump your keys for the emuMMC using rcmlockpick

3rd copy your newly generated keys from your switch to your PC.

4th move the ultimate hack tool. As close as possible to the root folder off your c: drive.
It just makes it work better.

shadow256 · Oct 22, 2021

fagnerkof said:
I give up. After a lot of tries, tried this literally step by step, with fresh keys generated after the single Guardian Force nsp installed. Got the usual "Failed to match keys" errors in log, ignored. Generated nsp, boot on yuzu showing the error 2002-0001 but doesn't starts the game, only the wallpaper stuck at the screen. Installing on switch is ok, but title got unbootable. Tried with a bunch of games and all the same output. I guess I'll have to wait people share their working nsps online or a good improvement on this saturn function for the USHS

The problem is in your .cue file of the Saturn game, open it with a text editor and verify that the binary(ies) names are exactly the same as the one indicated in the file, the case should be the same. This thing will be verified in a futur version of the script, for now the script was developed to make a quick work around for TitleID change, I think this goal is achived so now I will concentrate my efforts to add error controls and user friendly usage.

fagnerkof · Oct 22, 2021

shadow256 said:
The problem is in your .cue file of the Saturn game, open it with a text editor and verify that the binary(ies) names are exactly the same as the one indicated in the file, the case should be the same. This thing will be verified in a futur version of the script, for now the script was developed to make a quick work around for TitleID change, I think this goal is achived so now I will concentrate my efforts to add error controls and user friendly usage.

HOO LEE SHEET the issue really was the bin name at the .cue header, after matching it now it worked @_@ thanks everyone

Edit: Still having issues: In Yuzu, Game is flickering as hell and somewhat buggy. In Switch, installs ok but still can't boot the game (icon forever loading as game installed with corrupted files). Tried Sonic 3D Blast and Sega Rally

fredward · Oct 22, 2021

Question, is there any way to create a saturn game as a seperate nsp instead of putting it in the romsf folder? Not a big deal but thought be cool to do something like that

Levine91 · Oct 22, 2021

fredward said:
Question, is there any way to create a saturn game as a seperate nsp instead of putting it in the romsf folder? Not a big deal but thought be cool to do something like that

Not to be snarky, but yes, this has been mentioned over and over again in the thread.
Use Ultimate-Switch-Hack-Script to accomplish such.
https://github.com/shadow2560/Ultimate-Switch-Hack-Script

You'll need a NSP dump of your base game (Ex: Guardian Force).
You'll need a dump of your prod.keys and title.keys as well.
Make sure to avoid using special characters in your file name and file path.
Edit your cue file within notepad to make sure that the .bin file listed within it matches the .bin file you plan on using.

helvetinperkeles · Oct 22, 2021

Here's exellent source if you want overlays.
https://github.com/thebezelproject/...ee/master/retroarch/overlay/GameBezels/Saturn

Levine91 · Oct 22, 2021

Yet another dump of custom icons I created.
I'll make sure to put these and all the ones from my previous 2-3 icon dump posts (as well as future ones) into a google drive folder or something for easier access to them all.

Lunar Silver Star Story Complete Cover.png

helvetinperkeles · Oct 22, 2021

botik said:
Utility on python3 png2tex
Drag and drop on utility any PNG file. Exit - tex file

Drag and dropping a png file but nothing happens.

ShinLarc · Oct 22, 2021

Just wanted to update with 3 games I have tested. It seems like nobody is updating the GoogleDoc so i'll just post here.

Ronde - Works Perfectly
Hyper Duel - Works Perfectly
Shin Megami Tensei: Devil Summoner - Works Perfectly

helvetinperkeles · Oct 22, 2021

God damned. I just can't get custom images to work. I convert images to tex file and rename and when booting game all i get is black screen. And yes i deleted savefile before booting game.

SpaceJump · Oct 22, 2021

Levine91 said:
You may try to OC the game a little (even more if you havent already) to see if this helps

Just tried the same spot with 1224 Mhz. Works also perfectly fine

helvetinperkeles · Oct 22, 2021

How can i proceed here so i can save this as .tex? Save as is not giving me option to save .tex format.

linkcelula · Oct 22, 2021

Levine91 said:
Yet another dump of custom icons I created.
I'll make sure to put these and all the ones from my previous 2-3 icon dump posts (as well as future ones) into a google drive folder or something for easier access to them all.

View attachment 280983 View attachment 280984 View attachment 280985
View attachment 280986 View attachment 280987 View attachment 280988
View attachment 280989 View attachment 280990 View attachment 280991
View attachment 280992 View attachment 280993 View attachment 280994
View attachment 280995 View attachment 280996 View attachment 280997
View attachment 280998 View attachment 280999 View attachment 281000
View attachment 281001 View attachment 281002 View attachment 281003
View attachment 281004 View attachment 281005 View attachment 281006

Thanks for icons. Do you have a Golden Axe duel icon?

Homebrew Saturn emulation using Cotton/Guardian Force testing and debug

00000780 00000438

Well-Known Member

Well-Known Member

Well-Known Member

Attachments

Active Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Active Member

Active Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Attachments

Active Member

Similar threads

Popular threads in this forum