KNULLI

KNULLI is a custom firmware for retro gaming devices (handhelds, bartops, etc.). It's developed as a fork of Batocera. You can read more about knulli on its webpage

Installation

• Download the latest version of KNULLI.
• Write the image (e.g. knulli-h700-rg35xx-plus-40-20240721.img.gz) to an SDCARD using an imaging tool. Common imaging tools include Balena Etcher, Raspberry Pi Imager, and Win32 Disk Imager. If you're skilled with the command line, dd works fine too.
• You can read more about in the wiki

Update

• These versions include kernel changes that require flashing the full image if you have a RG35XX PLUS, SP or 2024
• If you have a RG28xx, RG35XX H, or TrimUI Smart Pro, you can update
• Follow the instructions from the wiki

Installation Package Downloads

Note: this release splits the images for different consoles, so the RG35XX H and Plus now have dedicated images

ChangeLog:

20240721

New Features:

• Added support for the RG40XX.
• Added hinge support for the RG35XX SP.
• Added ADB support for TrimUI Smart Pro.
• Added DPAD/Analogue emulation switch for the RG35XX Plus/2024/SP and RG28xx. Press hotkey + select in games to toggle between dpad or analogue emulation (system will provide haptic feedback when switched)
• Added wireless service option for the RG28XX and RG35XX 2024 (for compatible USB Wi-Fi dongles).
• Added original RG35XX support (Actions Semi ATM7039) (WIP).
• Added Rockchip RK3128 support (Powkiddy A12/A13, PS5000, PS7000) (WIP).

Updates:

• Aligned RG35XX plus/h, RG28XX, and TrimUI Smart Pro baselines.
• Updated multiple cores: arduous, beetle-pce-fast, beetle-pc, cap32, chailove, fake03, flycast, freechaf, hatari, mame, minivmac, mrboom, mupen64plus-next, openlara, picodrive, ppsspp, sameduck, stella2014, tic80, and wsam4 (Thanks @yuki).
• Updated RetroArch to v1.19.1 (reverted savestates due to corruption issue).
• Updated Art Book Theme (thanks @antfortytwo).
• Improved EmulationStation battery reading (thanks @Mikhailzrick & @MaroonBrian1928).

Fixes:

• Fixed Format a Disk menu to correctly format the SHARE partition to EXFAT or EXT4, ensuring correct mounting on Windows, Mac, or Linux.
• Removed FPS counter in Drastic, set default Drastic username to knulli (thanks @Mikhailzrick).
• Resolved Drastic folder duplication issue preventing it from starting.
• Fixed NDS auto core selection not working with Drastic.
• Fixed lr-openlara compilation issues.
• Fixed mangohud compilation.
• Fixed error in flycast-xtreme package name.
• Fixed wireless persistence (@Mikhailzrick).
• Fixed audio and brightness values during reboot (@Mikhailzrick).
• Fixed stereo audio for the RG35XX-H (@Mikhailzrick).
• Fixed autosaves being corrupted during shutdown. System now properly saves before shutdown (@Mikhailzrick).
• Fixed parallel-n64 compilation.
• Fixed HDMI switching after extensive troubleshooting (thanks @Mikhailzrick).
• Fixed auto power LED mode (@Mikhailzrick).
• Fixed some file overlay execution bits.
• Fixed performance regression that impacted RetroArch (noticeable in flycast, ppsspp, and mupen64plus).
• Fixed updated boot process that was not resizing the partition.
• Fixed HDMI switching (block switching while running a game) (@Mikhailzrick)
• Added batocera-screenshot.basic to fix compilation

Enhancements:

• Improved boot time (@Mikhailzrick)
• Deactivated the Mali blitter on RG35XX-Plus/H/SP and RG40XX to improve performance in some emulators and PortMaster.
• Set default control mappings for the RG35XX Plus/2024, it's no longer needed to remap them after the first boot.
• Reorganized TSP overlay to align with recent H700 changes.
• Added back the USB Wi-Fi drivers (RTL8188EU/US and RTL8192CU) for RG28XX and RG35XX-2024.
• Set flycastvl as the default Dreamcast/Atomiswave/Naomi core.
• Added morpheuscast core (flycast extreme)
• Set initial audio volume to 40%.
• Updated Drastic controls for the RG35XX Plus/2024 and RG28xx due to the new DPAD/Analogue switch. The controls are now as follows:
  • R2 = stylus tap
  • L2 = switch vertical / horizontal layout
  • hotkey + L2 = switch single / dual screen layout
  • hotkey + A = simulated microphone

Power Button Behavior Changes:

• LED can be turned on/off with hotkey + POWER button. It cycles between ON/AUTO/OFF. AUTO mode turns off in-game and signals with a flash.
• Suspend/Resume: short press POWER button.
• Shutdown: long press (2s +) POWER button.

Additional Updates:

• Added morpheuscast_libretro.info that prevented ROMs from launching when using that core.

20240530

• First public release for the RG35XX Plus/H/2024 and SP (hinge support is not there yet)
• Fixed issue with progressbar application that was not stopping after boot
• Set default overclock to 1.5GHz for the H700 platforms (same as stock). All other values are "underclocks"
• Set HDMI frequency to 60Hz for TV compatiblity (thanks @loki666)
• Set initial set of drastic mappings
• Fixed incorrect Drastic menu mappings (thanks @Mikhailzrick)
• Reverted retroarch back to use mali_fbdev context driver. This fixes performance issues as well as a memory leak that was impacting several emulators like SNES, GBA, etc and causing audio stuttering and crashes
• Changed S12populateShare to default to KNULLI version
• Bumped rtl8812au to fix bluetooth issues, included BT audio (thanks @Nerdy-boi)
• Updated Art Book Next (thanks @anthonycaccese )
• Added additional fixes to tate mode by @Mikhailzrick

20240517

• First TrimUI Smart Pro (TSP) public version (TSP)
• Added joystick calibration: (tSP)
  • calibration files are taken from stock (there's no current calibration program)
  • If the default calibration does not work for you, you can start stock, calibrate the joysticks, connect via ssh or adb, and copy the files joypad.config & joypad_right.config from /mnt/UDISK. Then in Knulli, use ADB or SSH to copy those files to /mnt/UDISK, and run batocera-save-overlay to make the change permanent
• Added boot progress bar support
• Added force shutdown shortcut for TSP (Menu + Power) (TSP)
• Added proper TSP control map for ES (TSP)
• Updated os-release information to include OS_NAME, OS_DATE, OS_VERSION
• Added PortMaster Installer (Launch from Ports) (Thanks @kloptops) (TSP)
• Updated art-book-next theme (thanks @anthonycaccese )
• Added MAME & FBNEO tate rotation mode (thanks @Mikhailzrick)
• Restored PCSX rearmed enhanced resolution (thanks @Mikhailzrick)

20240509

• First rg28xx version (rg28xx)
• Added rotation SDL2 patch thanks to @JohnnyonFlame (rg28xx)
• Fixed minor graphical artifacts during boot time
• SHARE partition is in EXT4 format by default. You can use the internal format tool to change it to EXFAT (Settings -> System * Settings -> Frontend Developer Options -> Format a Disk)
• Added FBAlpha, melonDS, melonDS DS, VirtualJaguar, GenesisPlusGX_Wide, Beetle PCE, Mesen, Mesens, and BSNES
• Fixed a mistake with the bootloader being overwritten during early boot (rg28xx)
• Added initial progressbar status support
• Added retroarch A/B keys mapping to match ES behavior (thanks @Mikhailzrick)

Known Issues:

TrimUI Smart Pro:

• Volume control still has some issues
• Volume overlay does not work
• PPSSPP standalone menu does not work

General:

• mupen64plus gliden64 does not work