{"id":26905668,"url":"https://github.com/ern0/256byte-xorlissj","last_synced_at":"2026-02-11T13:31:48.282Z","repository":{"id":72783935,"uuid":"80304973","full_name":"ern0/256byte-xorlissj","owner":"ern0","description":"256-byte DOS intro: XOR-pattern and Lissajous effect 2-in-1, released at Demobit2017","archived":false,"fork":false,"pushed_at":"2017-01-30T08:39:37.000Z","size":10,"stargazers_count":5,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-06-14T06:03:05.716Z","etag":null,"topics":["256-byte","8086","assembly","demo","educational","ms-dos"],"latest_commit_sha":null,"homepage":"","language":"Assembly","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/ern0.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","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}},"created_at":"2017-01-28T19:18:22.000Z","updated_at":"2020-01-14T18:36:11.000Z","dependencies_parsed_at":null,"dependency_job_id":"ca748b6f-8e08-4217-8146-37f6fe02b84a","html_url":"https://github.com/ern0/256byte-xorlissj","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/ern0/256byte-xorlissj","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ern0%2F256byte-xorlissj","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ern0%2F256byte-xorlissj/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ern0%2F256byte-xorlissj/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ern0%2F256byte-xorlissj/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ern0","download_url":"https://codeload.github.com/ern0/256byte-xorlissj/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ern0%2F256byte-xorlissj/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29333493,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-11T12:42:24.625Z","status":"ssl_error","status_checked_at":"2026-02-11T12:41:23.344Z","response_time":97,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: 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":["256-byte","8086","assembly","demo","educational","ms-dos"],"created_at":"2025-04-01T10:58:31.589Z","updated_at":"2026-02-11T13:31:48.270Z","avatar_url":"https://github.com/ern0.png","language":"Assembly","funding_links":[],"categories":[],"sub_categories":[],"readme":"# XORLISSJ\n*XOR-pattern and Lissajous effect 2-in-1*\u003cbr/\u003eA 256-byte MS-DOS demo by ERN0 - 2016.09.20\u003cbr/\u003eReleased at Demobit Party, 2017.01.28\n\n## This is not a 256-byte demo\n\n[Tomcat/Abaddon](https://demozoo.org/sceners/8556/) was sitting next to me on some sceneparty, polishing his actual 256-byte demo entry. \n\u003cbr/\u003e\u0026dash; What do you think, will you win?\u003cbr/\u003e\u0026dash; Meh, I lost my illusion, last time a XOR-pattern demo won.\u003cbr/\u003e\u0026dash; What is XOR pattern?\u003cbr/\u003e\u0026dash; When [the color of the pixel is `x XOR y`](http://lodev.org/cgtutor/xortexture.html).\u003cbr/\u003e\u0026dash; I see, it's so easy that even I can do it!\u003cbr/\u003e\n\u0026dash; Let's go!\n\nI am not a math expert, so I have to find simple problems, if I want to make 256-byte demos. Years ago, when I was active 8086 coder, I've already made a similar stuff, [a 256-byte particle demo](http://www.pouet.net/prod.php?which=5305).\n\nSo, XORLISSJ is not the type of 256-byte demos which is full of amazing math and coding tricks, it's just a simple effect - actually, two effects -, which somehow fit in 256 byte. Consider it as educational or inspirational material.\n\n## Compile and run\n\n### Compile\nI've used [NASM](http://www.nasm.us/):\u003cbr/\u003e`nasm xorlissj.asm -o xorlissj.com`\n\n### Run\n\nIt's pure 80286 code, it can be run in [DOSBox](http://www.dosbox.com/).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fern0%2F256byte-xorlissj","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fern0%2F256byte-xorlissj","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fern0%2F256byte-xorlissj/lists"}