PicoDrive v1.92 standalone and libretro core for GameShell

Standalone emulator

Installation

To install on GameShell (OS v0.2), ssh to it and issue:

First of all create a new directory called "Emulators" (assuming more standalone emulators would install there)

mkdir ~/apps/Menu/25_Emulators

There are 2 versions available, OpenGL and Software Renderer. Choose the desired one through the following commands:

OpenGL:

curl -sL https://github.com/pleft/picodrive/releases/download/v1.92-gameshell/PicoDriveGLES.tar.gz | tar -xvz --directory ~/apps/Menu/25_Emulators

Software render only:

curl -sL https://github.com/pleft/picodrive/releases/download/v1.92-gameshell/PicoDrive.tar.gz | tar -xvz --directory ~/apps/Menu/25_Emulators

Reload UI and a new menu option "Emulators" should appear in the main GameShell menu, choosing it the PicoDrive menu item(s) should appear.

OpenGL version (PicoDriveGLES):

Should work with the latest ClockworkPi OS which adds the lima driver. One can change the rendering mode via the menu:
Change options->[Display options]->Video output mode and choose by LEFT or RIGHT buttons either "OpenGL" or "SDL Window"
Should note here that it is just a build supporting OpenGL and it renders on a smaller window than the software rendering does.

Key mappings

In emulator menus

UP, DOWN, LEFT, RIGHT: navigate
A: select
B: cancel

when playing a rom

MENU: open up the emulator menu

libretro core

To install on GameShell (OS v0.2), ssh to it and issue:

curl -sL https://github.com/pleft/picodrive/releases/download/v1.92-gameshell/picodrive_libretro_gameshell_v1.92.tar.gz | tar -xvz --directory ~/.config/retroarch/cores/