{"id":15422991,"url":"https://github.com/letmaik/chip8","last_synced_at":"2025-04-19T17:41:56.194Z","repository":{"id":141777427,"uuid":"302762512","full_name":"letmaik/chip8","owner":"letmaik","description":"🕹 CHIP-8 emulator written in AssemblyScript","archived":false,"fork":false,"pushed_at":"2020-10-17T21:02:23.000Z","size":224,"stargazers_count":5,"open_issues_count":0,"forks_count":1,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-04-16T13:35:23.553Z","etag":null,"topics":["assemblyscript","chip-8-emulator"],"latest_commit_sha":null,"homepage":"https://letmaik.github.io/chip8/","language":"TypeScript","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/letmaik.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}},"created_at":"2020-10-09T22:04:46.000Z","updated_at":"2024-07-14T07:06:33.000Z","dependencies_parsed_at":null,"dependency_job_id":"f2eabcad-e6dc-4852-84cc-8d46a4423eee","html_url":"https://github.com/letmaik/chip8","commit_stats":{"total_commits":47,"total_committers":1,"mean_commits":47.0,"dds":0.0,"last_synced_commit":"fd6693f3a0e77bed1e26cbfb876cc0da08fb6ddd"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/letmaik%2Fchip8","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/letmaik%2Fchip8/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/letmaik%2Fchip8/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/letmaik%2Fchip8/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/letmaik","download_url":"https://codeload.github.com/letmaik/chip8/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":249751388,"owners_count":21320279,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":["assemblyscript","chip-8-emulator"],"created_at":"2024-10-01T17:40:01.729Z","updated_at":"2025-04-19T17:41:56.174Z","avatar_url":"https://github.com/letmaik.png","language":"TypeScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# CHIP-8 emulator written in AssemblyScript\n\nhttps://letmaik.github.io/chip8/\n\nKeys:\n\n```\n1 2 3 4\nQ W E R\nA S D F\nZ X C V\n```\n\n## CHIP-8 resources\n\n### Docs\n\nhttps://github.com/mattmikolay/chip-8/wiki/CHIP%E2%80%908-Technical-Reference\n\nhttp://devernay.free.fr/hacks/chip8/C8TECH10.HTM\n\n### Unit tests\n\nhttps://github.com/SnoozeTime/chip8/blob/master/test/opcode_test.cc\n\nhttps://github.com/DavidJowett/chip8-emulator/blob/master/test/chip8_test.c\n\n### Roms\n\nhttps://github.com/dmatlack/chip8\n\nhttps://github.com/JohnEarnest/chip8Archive\n\nhttps://github.com/corax89/chip8-test-rom\n\n## Development notes\n\n### TypedArray views\n\nWhen AssemblyScript grows heap memory, then all TypedArray views returned to JS become unusable/detached.\nThat's why a TypedArray view should be accessed directly before it is used in JS, without doing any other work in AssemblyScript that might grow memory. Keeping long-lived views is unsafe in general.\n\nNote that as-bind avoids such potential issues by always returning copies instead of views.\nThis is less efficient but safer for general usage, though also a bit confusing as it's not obvious that a copy happens. Updating the array inside AssemblyScript would obviously not be reflected in the copy.\nSee also https://github.com/torch2424/as-bind/issues/47.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fletmaik%2Fchip8","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fletmaik%2Fchip8","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fletmaik%2Fchip8/lists"}