The AmigaDOS, previously written in BCPL and very difficult to develop for beyond basic file manipulation, was mostly rewritten in C.
BCPL |
Source code for a Coral 66 compiler (written in BCPL) has been recovered and the "Official Definition of Coral 66" document by HMSO has been scanned; the Ministry of Defence patent office has issued a licence to the Edinburgh Computer History project to allow them to put both the code and the language reference online for non-commercial use.