Case study

Sonic 1 C Port: reconstructing Mega Drive game code in C

Sonic 1 C Port translates Sonic the Hedgehog revision 1 code from a Mega Drive ROM into C, then manually repairs generated control flow. A Rust runner and Speedshoes emulation framework compare C-side game state with the original and support instruction-level accuracy checks.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 35
Last commit: 2025-06-23
Language: C

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a download method observed; no demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: An original REV01 ROM named sonic1.bin is required.
Prerequisites: The documented build uses TCC and Rust 2021 edition.
Limits: Horizontal blank handling remains unported; build instructions are marked out of date.
License: No licence file in the repository.

Cite

BibTeX

@misc{sonic-1-c-port-case,
  title = {{Sonic 1 C Port: reconstructing Mega Drive game code in C}},
  howpublished = {\url{https://github.com/foreverWIP/s1-port}},
  url = {https://github.com/foreverWIP/s1-port},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sonic-1-c-port-case/}}
}

Plain text

Sonic 1 C Port: reconstructing Mega Drive game code in C. https://github.com/foreverWIP/s1-port (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sonic-1-c-port-case/

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Primary sources

readme.md GitHub · foreverWIP/s1-port · Revision bf1950a