{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/tetrisgm/lsdj-decomp/blob/49b55fac028d2e1cb362d41f30c8de4b812143d6/docs/PROVENANCE.md"
  ],
  "category": "reconstruction-cases",
  "class": "software",
  "description_en": "lsdj-decomp reconstructs Little Sound Dj 9.4.2 using tracked symbol maps, ROM analysis tools and C translations substituted into locally generated RGBDS assembly. The author reports an exact full-image comparison from a user-supplied ROM and 174 C functions matching 12,918 original bytes.",
  "description_zh": "lsdj-decomp 利用已记录的符号映射表、ROM 分析工具和 C 语言译写代码重建 Little Sound Dj 9.4.2；C 函数会替换本地生成的 RGBDS 汇编。作者报告从用户自备 ROM 构建的镜像完整匹配，其中 174 个 C 函数与原版 12,918 字节一致。",
  "entry_url": "https://awesomerea.org/resources/lsdj-9-4-2-decomp-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/lsdj-9-4-2-decomp-case/",
  "evidence_url": "https://github.com/tetrisgm/lsdj-decomp/blob/49b55fac028d2e1cb362d41f30c8de4b812143d6/README.md",
  "group": "cases",
  "id": "lsdj-9-4-2-decomp-case",
  "json_url": "https://awesomerea.org/resources/lsdj-9-4-2-decomp-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/lsdj-9-4-2-decomp-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/lsdj-9-4-2-decomp-case/index.md",
  "name": "lsdj-decomp: matching Little Sound Dj 9.4.2 reconstruction",
  "name_zh": "lsdj-decomp：Little Sound Dj 9.4.2 逐字节匹配重建",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "limits",
    "license"
  ],
  "requirements": [
    "Supply a Little Sound Dj 9.4.2 ROM matching the stated SHA-1.",
    "RGBDS 1.0.1, Make, Python 3 and the project-local GBDK toolchain are required.",
    "The author reports 174 matching C functions; the executable-code completion denominator has not been audited.",
    "The project tooling and imported maps are MIT licensed; the ROM and third-party toolchain retain separate terms."
  ],
  "requirements_zh": [
    "需自备符合指定 SHA-1 的 Little Sound Dj 9.4.2 ROM。",
    "需要 RGBDS 1.0.1、Make、Python 3 和项目本地 GBDK 工具链。",
    "作者报告 174 个 C 函数已匹配；可执行代码的完成比例基数尚未审计。",
    "项目工具及导入的符号映射表采用 MIT 许可证；ROM 和第三方工具链适用各自条款。"
  ],
  "targets": [
    "app"
  ],
  "url": "https://github.com/tetrisgm/lsdj-decomp",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}