vita2hos: Translation layer from Vita to Horizon OS

[Deleted member 323844]

Xerpi (developer of Fakemote, among many other projects) is working on vita2hos, a wrapper between Vita and Horizon OS. Apps are running natively, but Vita calls are translated into Horizon stuff.

PlayStation Vita (ARMv7 CPU) executables can be run natively on Nintendo Switch ARMv8 CPU in 32-bit execution mode. When loading a PlayStation Vita executable, vita2hos redirects the module imports of said executable to jump to routines that implement the same behavior, by using native Horizon OS services, like the one exposed by the original PlayStation Vita OS modules.

He is registered here, so maybe he can give more details about the progress and the objetives. Edit:

This is still in very early stages and therefore it can only run very simple CPU-rendered PlayStation Vita homebrews.

There is very initial 3D graphics support (it can run vitasdk's GXM triangle and cube samples by hardcoding _vita2hos_'s GLSL shaders to match the Cg shaders the samples use).

https://github.com/xerpi/vita2hos

 

[almmiron]

For lay people.

What could this mean in the future?

 

[masagrator]

For lay people.

What could this mean in the future?

Running Vita apps without emulating CPU stuff.
Which means we can have much more power dedicated to emulating GPU, which can result in the best available Vita emulator on internet.

The same pattern (CPU native code + emulated GPU) is used by Nintendo in their ports of Super Mario Galaxy and Zelda Skyward Sword which would normally not run at such good performance level as we have them.

 

[CloudStrife190100]

Does this mean psvita game emulation at some point in time then? Or just the apps in general?

 

[ber71]

wtf, totally unexpected

 

[Deleted member 323844]

Does this mean psvita game emulation at some point in time then? Or just the apps in general?

I suppose that's the idea, for now only homebrew is booting, but on Vita they managed to run retail Android games (it's basically the same thing).

 

[FLRIZDARKK]

Persona 4 Golden bout to be ported to the Switch before Atlus even considers it lol

 

[Spazzery]

This is amazing! Huge props to the developers!

 

[sley]

That's really cool, let's hope porting games will be easy.

 

[Jokey_Carrot]

Insane.

 

[hippy dave]

Awesome, will be cool to play with even if it only runs homebrew, but would be amazing if even some Vita games become playable (I'm still meaning to play the Uncharted game for Vita). And just really interesting from a tech perspective anyway.

 

[wolffangalchemist]

can't wait to play P4G on my Nintendo Vita XL!

 

[The Real Jdbye]

This is big. Just a shame the Vita has no games.

 

[stompysan]

He's not wrong. I was super excited when I bought mine back in the day, i was expecting PSP level of games.... I got Cold Steel and that's it. Mostly used it for emulators.

The Vita is an EXCELLENT system if you are a weeb. So many good anime titles, and a lot of them were actually localized for the US.

 

[lemonmaster]

Out of completely nowhere?? Completely insane.

 

[shorty_bobert]

I am at a loss for words, this is something I never expected to read lol

 

[spotanjo3]

Impressive. I always wants to play Uncharted Golden Abyss and now I am able to. That's all I care about. Thanks!

 

[Imancol]

preview?

 

[_Malek_]

Tool is already available, thx.

 

[deathblade200]

This is big. Just a shame the Vita has no games.

it has plenty of games its just 90% of them are cringey fan service games