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Operating system for the Sega Dreamcast

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DreamShell

The Dreamshell is the operating system for the Sega Dreamcast based on the KallistiOS kernel. It has a dynamic loadable modular system and interface for creating applications with XML UI and both C/C++ and Lua script on. You can see examples in ready-made applications and modules, drivers for various devices, formats and interfaces. Examples for audio and video decoding, compression, packaging, binding, network, emulation, scripts and more. From hardcore low-level assembler to high-level applications. There are also large subproject is the ISO Loader, which contains emulation of BIOS system calls, CDDA playback and VMU, also it can hooking interrupts for various SDKs and more.

Build

Setup environment

Packages
sudo apt update
sudo apt install -y gawk patch bzip2 tar make cmake pkg-config
sudo apt install -y gettext wget bison flex sed meson ninja-build
sudo apt install -y build-essential diffutils curl python3 rake
sudo apt install -y genisoimage squashfs-tools texinfo git
sudo apt install -y libgmp-dev libmpfr-dev libmpc-dev libelf-dev libisofs-dev
sudo apt install -y libpng-dev libjpeg-dev liblzo2-dev liblua5.2-dev
cd /tmp
git clone https://github.com/LuaDist/tolua.git
cd /tmp/tolua && mkdir build && cd ./build
cmake ../ && make && sudo make install
Code
sudo mkdir -p /usr/local/dc/kos
sudo chown -R $(id -u):$(id -g) /usr/local/dc
cd /usr/local/dc/kos
git clone https://github.com/KallistiOS/kos-ports.git
git clone https://github.com/KallistiOS/KallistiOS.git kos
cd /usr/local/dc/kos/kos
git clone https://github.com/DC-SWAT/DreamShell.git ds
git checkout `cat ds/sdk/doc/KallistiOS.txt`
cp ds/sdk/toolchain/environ.sh environ.sh
cp ds/sdk/toolchain/patches/*.diff utils/dc-chain/patches
cd /usr/local/dc/kos/kos/ds
git submodule update --init --recursive
Toolchain
sudo mkdir -p /opt/toolchains/dc
sudo chown -R $(id -u):$(id -g) /opt/toolchains/dc
cd /usr/local/dc/kos/kos
cp ./ds/sdk/toolchain/Makefile.cfg ./utils/dc-chain/Makefile.cfg
cd utils/dc-chain && make
SDK
cd /usr/local/dc/kos/kos
source ./environ.sh
make && cd ../kos-ports && ./utils/build-all.sh
cd ${KOS_BASE}/ds/sdk/bin/src && make && make install
cd ${KOS_BASE}/ds
ln -nsf `which tolua` sdk/bin/tolua
ln -nsf `which mkisofs` sdk/bin/mkisofs
ln -nsf `which mksquashfs` sdk/bin/mksquashfs

Use environment

for each new terminal type:
cd /usr/local/dc/kos/kos/ds && source ../environ.sh

Build code

Full build
make build
Full clean
make clean-all
Make release package
make release
Update all code from GitHub