Interview with Edsger Dijkstra and Symposium slides

Page on Edsger Dijkstra update here.

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Freepascal book by Jeff Duntemann

Jeff Duntemann, of Complete xxxx Pascal books, is now writing on freeepascal and Lazarus. A work in progress, well written, check ...

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Lilith section updated

I have added the repository by Jos Dreesen on Lilith and the Emulith emulator with a local copy. Jos maintains a ...

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Modern Object Pascal guide

Link to Quick Modern Object Pascal for Programmers Michalis Kamburelis and contributors: Maciej Izak There are many books and resources about Pascal out ...

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Ultibo, CP/M and Risc Oberon, a fine combination!

I like Ultibo (www.ultibo.org) as a native OS, written in Freepascal, OS for the Rapsberry. Already two nice applications are available: CP/M ...

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This site is about my experience with the Wirth school of languages, based on the ideas and implementations of Prof Niklaus Wirth, Kenneth Bowles, Per Brinch Hansen, colleagues, and their students. And my experience with the various variants, from the P2 and P4 compilers originating in Zurich, via UCSD Pascal P-System to the Borland compilers and Modula and Oberon systems. All applicable to small computers and device control.

On this website you will find information on Pascal for small machines, like Wirth compilers, the Yahoo Group UCSD Pascal, Yahoo archive, many scanned books’ and other files on UCSD Pascal, Pascal on MSX and CP/M, Delphi programming on PC, Freepascal on Raspberry, Oberon systems.

Timeline of my exposure to the Wirth language and OS and systems family, 5 years as student, 10 years as software engineer, 40 years as the way of programming!

  • WIRTH (1)1970- Pascal compilers, the P2-P4 compilers, Pascal-S, student VU Pascal (the forerunnner of the Amsterdam Compiler Kit), Andrew Tanenbaum, Professor R.P  van de Riet.
  • 1980 – Modula, Lilith, Medos, UCSD P-System, Turbo Pascal, Pascal-M, 10 years VAX/VMS Pascal, teacher Teleac cursus Pascal, Exin/Novi T5 Pascal
  • 1990 – Ceres, Project Oberon, Delphi
  • 2000 – FPGA Project Oberon, Freepascal + Lazarus