abd6a3a5da
Previously, code like this would fail with an error
about an unrecognized ) token:
( this is a ( nested ) comment )
With this patch, the above code will now work.
Relatedly, it was previously possible to write code
that compiled but was confusing:
(open parenthesis should have a space )
( in this case the ADD2 will be ignored )ADD2
( this comment with ( would have been fine )
With this commit, the first example will emit a warning
but continue to work as intended. The second and third
examples will continue searching for a matching ) token,
which due to the new nested coment behavior will probably
mean the rest of the file gets commented out.
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|---|---|---|
| etc | ||
| projects | ||
| src | ||
| .build.yml | ||
| .clang-format | ||
| .gitignore | ||
| build.sh | ||
| LICENSE | ||
| mkfile | ||
| README.md | ||
Uxn
An assembler and emulator for the Uxn stack-machine, written in ANSI C.
Download binaries
Binaries are available for 64-bit x86 computers running Linux, Windows and macOS.
Build
Linux/OS X
To build the Uxn emulator, you must install SDL2 for your distro. If you are using a package manager:
sudo pacman -Sy sdl2 # Arch
sudo apt install libsdl2-dev # Ubuntu
sudo xbps-install SDL2-devel # Void Linux
brew install sdl2 # OS X
Build the assembler and emulator by running the build.sh script. The assembler(uxnasm) and emulator(uxnemu) are created in the ./bin folder.
./build.sh
--debug # Add debug flags to compiler
--format # Format source code
If you wish to build the emulator without graphics mode:
cc src/uxn.c -DNDEBUG -Os -g0 -s src/uxncli.c -o bin/uxncli
Plan 9
To build the Uxn emulator on 9front, via npe:
mk
If the build fails on 9front because of missing headers or functions, try again after rm -r /sys/include/npe.
Windows
Uxn can be built on Windows with MSYS2. Install by downloading from their website or with Chocolatey with choco install msys2. In the MSYS shell, type:
pacman -S git mingw-w64-x86_64-gcc mingw64/mingw-w64-x86_64-SDL2
export PATH="${PATH}:/mingw64/bin"
git clone https://git.sr.ht/~rabbits/uxn
cd uxn
./build.sh
If you'd like to work with the Console device in uxnemu.exe, run ./build.sh --console instead: this will bring up an extra window for console I/O unless you run uxnemu.exe in Command Prompt or PowerShell.
Getting Started
Emulator
To launch a .rom in the emulator, point the emulator to the target rom file:
bin/uxnemu bin/piano.rom
You can also use the emulator without graphics by using uxncli. You can find additional roms here, you can find prebuilt rom files here.
Assembler
The following command will create an Uxn-compatible rom from an uxntal file. Point the assembler to a .tal file, followed by and the rom name:
bin/uxnasm projects/examples/demos/life.tal bin/life.rom
I/O
You can send events from Uxn to another application, or another instance of uxn, with the Unix pipe. For a companion application that translates notes data into midi, see the shim.
uxnemu orca.rom | shim
Emulator Options
-s 1,-s 2or-s 3set zoom (default 1)
Emulator Controls
F1toggle zoomF2toggle debugF3capture screenF4load boot.rom
Buttons
LCTRLALALTBLSHIFTSELHOMESTART
Need a hand?
Find us in #uxn on irc.esper.net.
Contributing
Submit patches using git send-email to the ~rabbits/public-inbox mailing list.