Engineer Uses AI to Reconstruct NASA's 1980 Space Shuttle Programming Language
A developer has rebuilt HAL/S, the programming language NASA used to write the Space Shuttle's flight software, relying on AI to handle most of the implementation work. The only surviving specification is IR-542, a 1980 document preserved solely as scanned page images with no text layer, making automated processing unreliable. Standard OCR engines proved inadequate for reconstructing the formal grammar, as all three tools tended to misread the same technical characters in the same way, compounding rather than cancelling errors. The project tiered content by OCR trustworthiness, with the 485-rule grammar section requiring manual line-by-line verification against zoomed page scans. Automated integrity checks confirmed no grammar productions were dropped or mislabelled, while human review was reserved only for errors those checks could not detect.
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