{
  "added_at": "2026-11-08",
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "The Kosmos CP1 toolchain reconstructs the CP2 cassette interface from a digitized real save and implements Python WAV encoding and decoding. Its documentation specifies FSK carriers, bit timing, byte order and the 256-cell memory image. An assembler and emulator support writing and tracing CP1 programs; the author reports a byte-exact encoding round trip.",
  "description_zh": "Kosmos CP1 工具链从真实 CP2 存档的数字录音重建磁带接口，并用 Python 实现 WAV 编码与解码。文档说明 FSK 载波、位时序、字节顺序和 256 单元内存映像；汇编器与模拟器可编写并跟踪 CP1 程序。作者报告编码往返结果逐字节一致。",
  "entry_url": "https://awesomerea.org/resources/kosmos-cp1-cassette-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/kosmos-cp1-cassette-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/lambdamikel/kosmos-cp1-devel-toolchain/blob/7d8287f38123290156fe5a9472880c2fc731ad18/README.md",
  "group": "cases",
  "id": "kosmos-cp1-cassette-case",
  "json_url": "https://awesomerea.org/resources/kosmos-cp1-cassette-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/kosmos-cp1-cassette-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/kosmos-cp1-cassette-case/index.md",
  "name": "Kosmos CP1: reconstructing the CP2 cassette format",
  "name_zh": "Kosmos CP1：重建 CP2 磁带格式",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "testing",
    "license"
  ],
  "requirements": [
    "Python 3 is required; the audio tools also require numpy.",
    "Loading a generated WAV into hardware requires a Kosmos CP1 and CP2 cassette module.",
    "The author reports a byte-exact round trip and decoding of a genuine CP2 recording.",
    "MIT license."
  ],
  "requirements_zh": [
    "需要 Python 3；音频工具还需 numpy。",
    "将生成的 WAV 载入硬件需要 Kosmos CP1 和 CP2 磁带模块。",
    "作者报告已完成逐字节一致的编码往返，并解码真实 CP2 录音。",
    "采用 MIT 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/lambdamikel/kosmos-cp1-devel-toolchain",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}