# ChirunoMod

A continuation of HzMod, built for Chokistream.

A utility background process for the Nintendo 3DS, purpose-built for screen-streaming over WiFi.

ChirunoMod is licensed under the GNU GPLv3 license. See the License section of this file for details, and see the file LICENSE for more details including the full terms of the license.

Current features

• screen streaming from 3DS to PC using the Chokistream client
• Hold the Y button while launching the loader to boot HzMod instead

Getting started

Get the latest stable release of Chokistream to run on PC.

Please use the latest stable release versions of ChirunoMod.cia and ChLoad.cia.

On 3DS, use FBI to install the .cia files...

Install ChLoad.cia, which is the loader.

If you are using an original 3DS, 3DS XL, or 2DS, which are otherwise referred to as "Old 3DS" systems, if you're going to use ChirunoMod while playing games which use the High/Extended Memory Mode (such as Super Smash Bros. or Pokemon Sun/Moon,) then also install ChLoad_HIMEM.cia.

Development builds

For posterity, development "nightly" builds are available in the repo. Note that nightly builds are usually less stable, and may not function as intended.

• ChirunoMod.cia (nightly)
• ChLoad.cia (dev/nightly)
• ChLoad_HIMEM.cia (dev/nightly)

ChirunoMod RGB LED color codes

Status Codes

• light-blue / teal = connected to wifi, waiting for Chokistream client to connect
• green = connected to client
• yellow = waiting to connect to wifi...
  • dev: sometimes this indicates when certain games switch the 3DS into Local Wireless (WLAN) mode.
• flashing yellow + magenta = stopping secondary thread, disconnecting...

Error Codes

• flashing yellow + black = fatal error. if possible, hold Start and Select to shutdown ChirunoMod.
  • dev: main() function encountered an issue and panicked (hangmacro). check HzLog.log for details.
• flashing red + green = stuck (or crashed) in netfuncTestFramebuffer() function.
  • dev: encountered an issue trying to obtain process ID of foreground process (?)
• flashing red + white = misc. error
  • dev: possibly C++ exception; CPPCrashHandler(). check HzLog.log for details.
• flashing red + other color = failed to start secondary thread (out of resources)
• red = encountered an error near the start of the main() function
• dark blue = trying to shut down ChirunoMod (perhaps softlocked?)

Credits

see (CREDITS.md)[CREDITS.md]

Build Instructions

If you'd like to grab a nightly build, a CIA file that's updated nearly every commit is in the root directory of this repository. ChirunoMod.cia

It's not recommended to set up a build environment and build the project manually, as it's a bit of a chore.

Prerequisites

• git
• makerom in PATH
• bannertool in PATH (alternative link: https://github.com/Epicpkmn11/bannertool)
• Legacy versions of devkitARM and libctru (detailed below)
• Libraries: 3ds-libjpeg-turbo and 3ds-zlib (should be automatically handled by devkitPro)

Currently, all active branches need to be compiled with a legacy version of the libctru library and the devkitARM toolchain. Specifically:

• devkitARM r46
• libctru 1.2.1

An archive containing these can be downloaded here (Windows only): https://chainswordcs.com/dl/hzmod_dependencies_2017_v1.zip

Alternatively, archives of libctru, devkitARM, and related things can be found here: https://wii.leseratte10.de/devkitPro/

Installation (tailored to Windows users):

1. Contents of the devkitarm-r46 folder should be moved to C:/devkitPro/devkitARM (Please copy or rename the up-to-date devkitARM folder so it can be restored if you need)
2. Contents of the libctru-1.2.1 folder should be moved to C:/devkitPro/libctru (Same precaution as above)
3. The portlibs folder can be copied over and merged with the existing folder C:/devkitPro/portlibs. 2017 libctru/devkitARM uses "armv6k", whereas current libctru/devkitARM uses "3ds".

Building

ChirunoMod

1. Clone the repository with git clone https://github.com/ChainSwordCS/ChirunoMod.git
2. If desired, change #define build flags at the top of /soos/main.cpp to enable verbose debug logging or disable debug logging altogether.
3. Run make.
4. The compiled file is ChirunoMod.cia. Copy that to the 3DS and install it using FBI or another cia installer homebrew.

ChLoad (HzLoad)

1. Clone the repository with git clone https://github.com/ChainSwordCS/ChirunoMod.git
2. Navigate to the /HzLoad/ directory. Run make to compile ChLoad.cia, or make HIMEM=1 to compile ChLoad_HIMEM.cia.

License

Copyright (c) 2022-2024 ChainSwordCS (https://chainswordcs.com), (chainswordcs@gmail.com)

ChirunoMod is licensed under the GNU GPLv3 license. See LICENSE for details.

ChirunoMod is based on HzMod.

HzMod code and project are licensed under GNU GPLv3 license.

HzMod code and project are Copyright (c) 2017 Sono (https://github.com/SonoSooS), (https://gbatemp.net/members/sono.373734/).

The original HzMod project is sometimes otherwise referred to as HorizonM, HzModHax, HorizonMod, or HorizonModule. The HzMod project includes HorizonScreen and HzLoad.

See LICENSE for details.

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