TMT Pascal was the first [[Borland]]-compatible compiler for 32-bit [[DOS]] [[protected mode]], [[OS/2]], and [[Win32]] operating systems. The TMT Pascal language was the first one to allow function and [[operator overloading]].
The universities of Wisconsin-Madison, [[Zürich]], [[Karlsruhe]], and [[Wuppertal]] developed the ''Pascal-SC''<ref>{{cite journal |last1=Rall |first1=L. B. |date=1987 |title=An introduction to the scientific computing language Pascal-SC |journal=Computers |volume=14 |pages=53–69 |doi=10.1016/0898-1221(87)90181-7|doi-access=free }}</ref><ref name="Cadmus_1986">{{cite journal |title=Cadmus jetzt mit Kulisch-Arithmetik - Uni Karlsruhe gibt Pascal-Compiler nach München |trans-title=Cadmus now comes with Kulisch arithmetic - University Karlsruhe delivers Pascal compiler to Munich |author=PI |date=1986-08-29 |journal=[[Computerwoche]] |publisher=[[IDG Business Media GmbH]] |language=de |___location=Munich – Karlsruhe, Germany |url=http://www.computerwoche.de/a/uni-karlsruhe-gibt-pascal-compiler-nach-muenchen-cadmus-jetzt-mit-kulisch-arithmetik,1165749 |access-date=2016-05-30 |url-status=dead |archive-url=https://web.archive.org/web/20160530220339/http://www.computerwoche.de/a/uni-karlsruhe-gibt-pascal-compiler-nach-muenchen-cadmus-jetzt-mit-kulisch-arithmetik,1165749 |archive-date=2016-05-30}}</ref> and ''Pascal-XSC''<ref>{{cite web |url=http://www.rz.uni-karlsruhe.de/~iam/html/language/pxsc.html |title=Pascal-XSC: Pascal for Extended Scientific Computing |url-status=dead |archive-url=https://web.archive.org/web/20140105102206/http://www.rz.uni-karlsruhe.de/~iam/html/language/pxsc.html |archive-date=2014-01-05}}</ref><ref>{{cite web |url=http://www.xsc.de/ |title=XSC Software |access-date=11 August 2015 |url-status=dead |archive-url=https://web.archive.org/web/20151101160306/http://www.xsc.de/ |archive-date=1 November 2015}}</ref><ref>{{cite web |url=http://www2.math.uni-wuppertal.de/wrswt/xsc/pxsc_download.html |title=Universitaet Wuppertal: Wissenschaftliches Rechnen / Softwaretechnologie |access-date=11 August 2015 |url-status=dead |archive-url=https://web.archive.org/web/20151106022857/http://www2.math.uni-wuppertal.de/wrswt/xsc/pxsc_download.html |archive-date=6 November 2015}}</ref> (''[[Extensions for Scientific Computation]]'') compilers, aimed at programming numerical computations. Development for Pascal-SC started in 1978 supporting ISO 7185 Pascal level 0, but level 2 support was added at a later stage.<ref name="Wallis_1990">{{cite book |title=Improving Floating-Point Programming |editor-first=Peter J. L. |editor-last=Wallis |author-first1=Lothar |author-last1=Bamberger |author-first2=James H. |author-last2=Davenport |author-first3=Hans-Christoph |author-last3=Fischer |author-first4=Jan |author-last4=Kok |author-first5=Günter |author-last5=Schumacher |author-first6=Christian |author-last6=Ullrich |author-first7=Peter J. L. |author-last7=Wallis |author-first8=Dik T. |author-last8=Winter |author-first9=Jürgen |author-last9=Wolff von Gudenberg |date=1990 |edition=1st |publisher=[[John Wiley & Sons Ltd.]] |___location=Bath, United Kingdom |isbn=0-471-92437-7 <!--|ISBN=978-0-471-92437-1 -->}}</ref> Pascal-SC originally targeted the [[Z80]] processor, but was later rewritten for DOS ([[x86]]) and [[68000]]. Pascal-XSC has at various times been ported to Unix (Linux, [[SunOS]], [[HP-UX]], [[AIX]]) and Microsoft/IBM (DOS with [[EMX (programming environment)|EMX]], OS/2, [[Windows]]) operating systems. It operates by generating intermediate C source code which is then compiled to a native executable. Some of the Pascal-SC language extensions have been adopted by [[GNU Pascal]].
Pascal Sol was designed around 1983 by a French team to implement a [[Unix-like]] system named Sol. It was standard Pascal level-1 (with parameterized array bounds) but the definition allowed alternative keywords and predefined identifiers in French and the language included a few extensions to ease system programming (e.g. an equivalent to lseek).<ref>Michel Gien, "The SOL Operating System", in Usenix Summer '83 Conference, Toronto, ON, (July 1983), pp. 75–78</ref> The Sol team later on moved to the [[ChorusOS]] project to design a distributed operating system.<ref>{{Cite web|url=http://www.cs.berkeley.edu/~prabal/resources/osprelim/RAA+92.pdf|archiveurl=https://web.archive.org/web/20150207194433/http://www.cs.berkeley.edu/~prabal/resources/osprelim/RAA+92.pdf|url-status=dead|title=Overview of the CHORUS Distributed Operating Systems|year=1991|work=Chorus systems|via=cs.berkeley.edu|archivedate=February 7, 2015}}</ref>
