{"id":13770439,"url":"https://github.com/mkeeter/raven","last_synced_at":"2026-03-09T12:04:37.544Z","repository":{"id":239845170,"uuid":"800154667","full_name":"mkeeter/raven","owner":"mkeeter","description":"An implementation of the Uxn CPU and Varvara Ordinator","archived":false,"fork":false,"pushed_at":"2026-03-06T16:43:09.000Z","size":367,"stargazers_count":85,"open_issues_count":6,"forks_count":7,"subscribers_count":3,"default_branch":"main","last_synced_at":"2026-03-06T18:32:57.859Z","etag":null,"topics":["assembly","interpreter","uxn","varvara"],"latest_commit_sha":null,"homepage":"https://mattkeeter.com/projects/raven","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mpl-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/mkeeter.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.txt","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2024-05-13T20:02:14.000Z","updated_at":"2026-03-06T16:43:11.000Z","dependencies_parsed_at":"2024-05-15T19:05:44.732Z","dependency_job_id":"05c87e12-36ae-43ee-a8db-91a221678942","html_url":"https://github.com/mkeeter/raven","commit_stats":null,"previous_names":["mkeeter/muxn","mkeeter/raven"],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/mkeeter/raven","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mkeeter%2Fraven","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mkeeter%2Fraven/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mkeeter%2Fraven/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mkeeter%2Fraven/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mkeeter","download_url":"https://codeload.github.com/mkeeter/raven/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mkeeter%2Fraven/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":30294713,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-03-09T11:12:22.024Z","status":"ssl_error","status_checked_at":"2026-03-09T11:10:54.577Z","response_time":61,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["assembly","interpreter","uxn","varvara"],"created_at":"2024-08-03T17:00:37.491Z","updated_at":"2026-03-09T12:04:37.526Z","avatar_url":"https://github.com/mkeeter.png","language":"Rust","funding_links":[],"categories":["Emulators"],"sub_categories":["Desktop"],"readme":"**Raven** is an independent re-implementation of the\n[Uxn CPU](https://wiki.xxiivv.com/site/uxn.html)\nand\n[Varvara Ordinator](https://wiki.xxiivv.com/site/varvara.html).\n\nFor details, see [the project writeup](https://mattkeeter.com/projects/raven).\n\n--------------------------------------------------------------------------------\n\nThe `raven-uxn` crate includes two implementations of the Uxn CPU:\n\n- The safe interpreter is a `#[no_std]` crate written in 100% safe Rust, with a\n  single dependency (`zerocopy`).  It is 10-20% faster than\n  the [reference implementation](https://git.sr.ht/~rabbits/uxn/tree/main/item/src)\n  for CPU-heavy workloads (e.g.\n  [`fib.tal`](https://git.sr.ht/~rabbits/uxn/tree/main/item/projects/examples/exercises/fib.tal),\n  and\n  [`mandelbrot.tal`](https://git.sr.ht/~rabbits/uxn/tree/main/item/projects/examples/demos/mandelbrot.tal)\n- The unsafe (\"native\") interpreter is written in `aarch64` assembly (with Rust\n  shims on either side), and runs 40-50% faster than the reference\n  implementation\n\nThe native interpreter can be checked against the safe interpreter with fuzz\ntesting:\n\n```console\ncargo install cargo-fuzz # this only needs to be run once\ncargo +nightly fuzz run --release fuzz-native\n```\n\n--------------------------------------------------------------------------------\n\nThe Varvara implementation (`raven-varvara`) includes all peripherals, and has\nbeen tested on many of the\n[flagship applications](https://wiki.xxiivv.com/site/roms.html)\n(Left, Orca, Noodle, Potato).\n\n--------------------------------------------------------------------------------\n\nThe repository includes two applications built on these libraries:\n\n- `raven-cli` is a command-line application to run console-based ROMs\n- `raven-gui` is a full-fledged GUI, which runs both as a native application and\n  [on the web](https://mattkeeter.com/projects/raven/demo)\n\nThe web demo is built with [`truck`](https://trunkrs.dev/), e.g.\n\n```console\ncargo install --locked trunk # this only needs to be run once\ncd raven-gui\ntrunk build --release --public-url=/projects/raven/demo/ # edit this path\n```\n\n--------------------------------------------------------------------------------\n\n© 2024-2026 Matthew Keeter  \nReleased under the [Mozilla Public License 2.0](https://github.com/mkeeter/fidget/blob/main/LICENSE.txt)\n\nThe repository includes ROMs compiled from the `uxnemu` reference\nimplementation, which are © Devine Lu Linvega and released under the MIT\nlicense; see the [`roms/`](roms/) subfolder for details.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmkeeter%2Fraven","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmkeeter%2Fraven","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmkeeter%2Fraven/lists"}