Making portable my unportable transputer C compiler

This article describes the modernization of a legacy C compiler originally built for transputer systems, illustrating the broader business challenge of keeping mission-critical software viable as hardware and memory models evolve. For CIOs and technology leaders, the key takeaway is that technical debt in legacy code can block portability, increase maintenance risk, and force redesigns when moving from 32-bit to 64-bit platforms; even small assumptions like treating pointers as integers can become major migration issues. The work underscores the strategic value of disciplined refactoring, explicit data structures, and portable coding practices to preserve engineering assets while enabling modernization.