{"id":21041033,"url":"https://github.com/chfoo/bootleg-cart-notes","last_synced_at":"2026-04-01T23:39:58.724Z","repository":{"id":145909380,"uuid":"230331220","full_name":"chfoo/bootleg-cart-notes","owner":"chfoo","description":"Notes and ROM dumps from multicart bootleg Game Boy carts.","archived":false,"fork":false,"pushed_at":"2019-12-28T19:54:36.000Z","size":89,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2026-03-27T23:42:37.587Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chfoo.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"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":"2019-12-26T21:37:47.000Z","updated_at":"2019-12-28T19:54:38.000Z","dependencies_parsed_at":null,"dependency_job_id":"fb02e0fd-f61b-4599-b0a3-dd565f17884f","html_url":"https://github.com/chfoo/bootleg-cart-notes","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/chfoo/bootleg-cart-notes","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chfoo%2Fbootleg-cart-notes","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chfoo%2Fbootleg-cart-notes/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chfoo%2Fbootleg-cart-notes/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chfoo%2Fbootleg-cart-notes/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chfoo","download_url":"https://codeload.github.com/chfoo/bootleg-cart-notes/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chfoo%2Fbootleg-cart-notes/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31293000,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-01T21:15:39.731Z","status":"ssl_error","status_checked_at":"2026-04-01T21:15:34.046Z","response_time":53,"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":[],"created_at":"2024-11-19T13:50:06.655Z","updated_at":"2026-04-01T23:39:58.699Z","avatar_url":"https://github.com/chfoo.png","language":null,"readme":"# bootleg cart notes\n\nNotes and ROM dumps from multicart bootleg Game Boy carts.\n\nThe dumper used is insideGadgets GBxCart RW v1.2b. The modified dumper code can be found at [my fork](https://github.com/chfoo/GBxCart-RW/tree/multicart).\n\nWork in progress.\n\n## 108-in-1\n\n* $FF82 is the cursor 1-based index\n\nWhen cart is boot up:\n\n* Write $AA to $5000\n* Write $00 to $4000\n* Write $01 to $2100\n\nWhen game 1 (Pokemon Gold) is selected:\n\n* Write $01 to $2100\n* Write $E0 to $7BE0\n* Write $BB to $5000\n* Write $00 to $4000\n* Write $20 to $7B20\n* Write $55 to $5000\n* Write $82 to $7B82\n* Jump to $0100\n\n### Game 1\n\n`POKEMON_GOLD_US.gb`\n\n* MD5: 02106d5967cff46f4862add4fdbeb5cb\n* SHA1: 1e739723fbcf4dd7e7d62c1b5143695a29af5dd3\n\nIPS patches:\n\n* Patch against Pokemon Gold Japan (`POKEMON_GLDAAUJ.gb`; MD5: 85be569fe89f58c40f60480313314c67)\n\n(I'm aware someone independently has dumped this ROM before. It just took me a year before I was able to. 🙁)\n\n## 2-in-1 Pokémon Gold and Silver\n\n* $c014 is the menu cursor's 0-based index\n* When a choice is selected, code at ROM3f:6774 is copied to work ram D000 and run\n\nPseudocode (translated by Pikalax, thanks!):\n\n```\nSwitch to ROM bank 1\nMap some cartridge feature to SRAM\nRead byte at [cd00+[c014]] to reg_a (inefficiently, i might add)\nif reg_a != 0:\n  write reg_a to [a000]\n  write [cd0a+[c014]] to [a000]\n  write [cd1e+[c014]] to [b000]\n  write [cd28+[c014]] to [a000]\n  restore hardware ident from [fff0]\n  jump to Boot\nelse:\n  write reg_a to [a000]\n  write [cd0a+[c014]] to [a000]\n  write [cd1e+[c014]] to [b000]\n  write [cd28+[c014]] to [a000]\n  restore hardware ident from [fff0]\n  jump to code at 00:05C5\n```\n\nWIP\n\nThe dumped ROM is very messy and broken.\n\nHowever, a clean patch [has been made by someone else earlier](https://gbatemp.net/threads/pokemon-hong-kong-gold-version-ips-patch.456707/) which appears to be the same game.\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchfoo%2Fbootleg-cart-notes","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchfoo%2Fbootleg-cart-notes","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchfoo%2Fbootleg-cart-notes/lists"}