https://github.com/mkeeter/raven

An implementation of the Uxn CPU and Varvara Ordinator
https://github.com/mkeeter/raven

assembly interpreter uxn varvara

Last synced: about 2 months ago
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An implementation of the Uxn CPU and Varvara Ordinator

• Host: GitHub
• URL: https://github.com/mkeeter/raven
• Owner: mkeeter
• License: mpl-2.0
• Created: 2024-05-13T20:02:14.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-07-23T12:19:47.000Z (2 months ago)
• Last Synced: 2024-07-23T14:32:38.535Z (2 months ago)
• Topics: assembly, interpreter, uxn, varvara
• Language: Rust
• Homepage: https://mattkeeter.com/projects/raven
• Size: 412 KB
• Stars: 29
• Watchers: 5
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

• awesome-uxn - Raven - Cross-platform emulator, written in Rust. (Emulators / Desktop)

README

        
**Raven** is an independent re-implementation of the

[Uxn CPU](https://wiki.xxiivv.com/site/uxn.html)

and

[Varvara Ordinator](https://wiki.xxiivv.com/site/varvara.html).

For details, see [the project writeup](https://mattkeeter.com/projects/raven).

--------------------------------------------------------------------------------

The `raven-uxn` crate includes two implementations of the Uxn CPU:

- The safe interpreter is a `#[no_std]` crate written in 100% safe Rust, with a

  single dependency (`zerocopy`).  It is 10-20% faster than

  the [reference implementation](https://git.sr.ht/~rabbits/uxn/tree/main/item/src)

  for CPU-heavy workloads (e.g.

  [`fib.tal`](https://git.sr.ht/~rabbits/uxn/tree/main/item/projects/examples/exercises/fib.tal),

  and

  [`mandelbrot.tal`](https://git.sr.ht/~rabbits/uxn/tree/main/item/projects/examples/demos/mandelbrot.tal)

- The unsafe ("native") interpreter is written in `aarch64` assembly (with Rust

  shims on either side), and runs 40-50% faster than the reference

  implementation

--------------------------------------------------------------------------------

The Varvara implementation (`raven-varvara`) includes all peripherals, and has

been tested on many of the

[flagship applications](https://wiki.xxiivv.com/site/roms.html)

(Left, Orca, Noodle, Potato).

--------------------------------------------------------------------------------

The repository includes two applications built on these libraries:

- `raven-cli` is a command-line application to run console-based ROMs

- `raven-gui` is a full-fledged GUI, which runs both as a native application and

  [on the web](https://mattkeeter.com/projects/raven/demo)

--------------------------------------------------------------------------------

© 2024 Matthew Keeter  

Released under the [Mozilla Public License 2.0](https://github.com/mkeeter/fidget/blob/main/LICENSE.txt)

The repository includes ROMs compiled from the `uxnemu` reference

implementation, which are © Devine Lu Linvega and released under the MIT

license; see the [`roms/`](roms/) subfolder for details.