Reverse engineered Codemasters' BIGF archive format with AI help and wrote a Ruby reader

by David SilvaRead the writeup Repository

What was done

An AI-assisted reverse engineering of the BIGF archives holding TOCA Race Driver's driver-AI data produced a dependency-free Ruby reader that parses archives from four Codemasters games.

Where the human stepped in

The author says he steered and verified every claim against the bytes; the AI drafted code and proposed hypotheses. Measuring 1,371 files showed a commonly assumed offset was wrong.

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File formatsWorksSource available

Target: Codemasters BIGF archives (TOCA Race Driver)

Reverse engineered Codemasters' BIGF archive format with AI help and wrote a Ruby reader

by David SilvaRead the writeup Repository

What was done

An AI-assisted reverse engineering of the BIGF archives holding TOCA Race Driver's driver-AI data produced a dependency-free Ruby reader that parses archives from four Codemasters games.

Where the human stepped in

The author says he steered and verified every claim against the bytes; the AI drafted code and proposed hypotheses. Measuring 1,371 files showed a commonly assumed offset was wrong.