A PlayStation Vita to Horizon OS (Nintendo Switch OS) translation layer (not an emulator)
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.
Copy vita2hos.nsp
to your microSD card (i.e. to: atmosphere/vita2hos.nsp
)
Create atmosphere/config/override_config.ini
and add the following lines to it:
[hbl_config]
override_any_app=true
override_any_app_key=R
override_any_app_address_space=32_bit
; adjust the path according to the location of your file
path=atmosphere/vita2hos.nsp
Note: As long as this file exists you won't be able to use the homebrew menu and instead will always run vita2hos.
A quick workaround would be to rename the file and restart your Switch.
Unfortunately override_config.ini
doesn't allow multiple path
entries which is why it has to be done this way.
Copy a PlayStation Vita executable (.velf
or .self
/eboot.bin
) to sd:/vita2hos/executable
Boot (or reboot) your Switch and start any game while holding down R
Enjoy!
.velf
or .self
/eboot.bin
) to sd:/vita2hos/executable
(File → Open yuzu Folder → sdmc/
)vita2hos.nsp
.velf
or .self
/eboot.bin
) to sd:/vita2hos/executable
(File → Open Ryujinx Folder → sdcard/
)vita2hos.nsp
mkdir build && cd build
arm-none-eabi-cmake ..
\
b. cmake -DCMAKE_TOOLCHAIN_FILE:FILEPATH=$DEVKITPRO/cmake/devkitARM.cmake ..
make
(or ninja
if configured with -G Ninja
)vita2hos.nsp
will be generatedI recommend passing -DCMAKE_COLOR_DIAGNOSTICS:BOOL=TRUE
, especially when using Ninja.
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).
A few noteworthy teams/projects who've helped along the way are:
vita2hos uses Vita3K's shader recompiler, and some parts of vita2hos's code are based on Vita3K's implementation. Please, consider donating and contributing to Vita3K!
vita2hos uses UAM (deko3d's shader compiler) to compile shaders. Please, also consider contributing to that project and donating to the developers!
Also special thanks to @PixelyIon and @SciresM for their help, and to all the testers, especially @TSRBerry.