Case study

lsdj-decomp: matching Little Sound Dj 9.4.2 reconstruction

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.

Targets: App
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 0
Last commit: 2026-09-07
Language: Python

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Supply a Little Sound Dj 9.4.2 ROM matching the stated SHA-1.
Prerequisites: RGBDS 1.0.1, Make, Python 3 and the project-local GBDK toolchain are required.
Limits: The author reports 174 matching C functions; the executable-code completion denominator has not been audited.
License: The project tooling and imported maps are MIT licensed; the ROM and third-party toolchain retain separate terms.

Cite

BibTeX

@misc{lsdj-9-4-2-decomp-case,
  title = {{lsdj-decomp: matching Little Sound Dj 9.4.2 reconstruction}},
  howpublished = {\url{https://github.com/tetrisgm/lsdj-decomp}},
  url = {https://github.com/tetrisgm/lsdj-decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/lsdj-9-4-2-decomp-case/}}
}

Plain text

lsdj-decomp: matching Little Sound Dj 9.4.2 reconstruction. https://github.com/tetrisgm/lsdj-decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/lsdj-9-4-2-decomp-case/

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About this entry

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Primary sources

README.md GitHub · tetrisgm/lsdj-decomp · Revision 49b55fa
docs/PROVENANCE.md GitHub · tetrisgm/lsdj-decomp · Revision 49b55fa