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mdl |
2 definitions found From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]: MDL (Originally "Muddle"). C. Reeve, {Carl Hewitt} and {Gerald Sussman}, Dynamic Modeling Group MIT ca 1971. Intended as a successor to Lisp, and a possible base for Planner-70. Basically LISP 1.5 with data types and arrays. Many of its features were advanced at the time (I/O, interrupt handling and coroutining), and were incorporated into later LISP dialects ("optional", rest" and aux" markers). In the mid 80's there was an effort to use bytecoding to make the language portable. CLU was first implemented in MDL. Infocom wrote Zork in MDL, and used it as the basis for the ZIL interpreter. Implementations exist for ITS {TOPS-20}, BSD 4.3, Apollo Domain, SunOS and A/UX. ["The MDL Programming Language", S.W. Galley et al Doc SYS.11.01, Project MAC, MIT (Nov 1975)]. From V.E.R.A. -- Virtual Entity of Relevant Acronyms 13 March 2001 [vera]: MDL Microstation Development Language (CAD)
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