{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/ZReC/contraj-disasm/blob/4ebc4b8ae7f810d4157caadf912d2652041df832/Makefile"
  ],
  "category": "reconstruction-cases",
  "class": "game",
  "description_en": "Contra (J) disasm reconstructs the Japanese NES game's program banks in assembly. Its Makefile assembles the ROM and compares its SHA3-256 checksum with the original; users provide the CHR banks from their own ROM.",
  "description_zh": "Contra (J) disasm 以汇编源码重建日版 NES 游戏的程序分区。Makefile 组装 ROM，并用 SHA3-256 与原版校验值比较；用户需从自己的 ROM 提供 CHR 分区。",
  "entry_url": "https://awesomerea.org/resources/contra-j-disasm-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/contra-j-disasm-case/",
  "evidence_url": "https://github.com/ZReC/contraj-disasm/blob/4ebc4b8ae7f810d4157caadf912d2652041df832/README.md",
  "group": "cases",
  "id": "contra-j-disasm-case",
  "json_url": "https://awesomerea.org/resources/contra-j-disasm-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/contra-j-disasm-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/contra-j-disasm-case/index.md",
  "name": "Contra (J) disasm: rebuilding the Japanese NES game",
  "name_zh": "Contra (J) disasm：重建日版 NES 游戏",
  "reconstruction_method": "matching-decompilation",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "limits",
    "license"
  ],
  "requirements": [
    "Supply CHR banks extracted from the specified Japanese Contra ROM.",
    "Building requires asm6, a C compiler and OpenSSL for the checksum.",
    "The author calls the disassembly a first iteration.",
    "No licence file in the repository."
  ],
  "requirements_zh": [
    "需从指定的日版 Contra ROM 提取 CHR 分区。",
    "构建需要 asm6、C 编译器和用于校验的 OpenSSL。",
    "作者将该反汇编称为初版。",
    "仓库中没有许可证文件。"
  ],
  "targets": [
    "game"
  ],
  "url": "https://github.com/ZReC/contraj-disasm",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}