# Oberon/System Variants

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The Oberon system runs directly on several machine architectures and as a subsystem in several host operating systems. Order of rows is approximately chronological. For each variant (row), a link in the second column leads to additional information.
Source Texts in Oberon :
| Host Environment | Software | Installation archive | Installation Instructions |
| Ceres workstation preserved Ceres preserved Ceres photo of Ceres 3 FPGA based Cyclone V GX. | The Oberon System V1 and V2 | Notes about Oberon and implementation of Ceres Project-Oberon at Sourceforge https://bitsavers.org/ETH | Notes about Oberon and implementation of Ceres Project-Oberon at Sourceforge https://bitsavers.org/ETH |
| X86 PC with MS-DOS or compatible OS | Oberon for PC on an MS-DOS Base(PDF), Dis93 | Sourceforge Github | README.TXT for System 3, Release 2.0 at Sourceforge, and at Github |
| Any system compatible with the included PAL library | Cross-platform ETH Oberon, System 3 | Rochus Keller, github | Rochus Keller, github |
Source Texts in Oberon-2 :
| Host Environment | Software | Installation archive | Installation Instructions |
| Bare X86 PC | ETH Oberon, formerly System 3, PC-Native Oberon. Wikipedia | SourceForge | ETHZ, actual diskettes Hypervisor using diskette images. Oberon Tutorials at YouTube |
| X86 PC with MS-DOS or compatible OS | DOS Oberon System3, Version 2.0, Dis93 | SourceForge Github | SourceForge Github |
| X86 PC with MS Windows | ETH Oberon for Windows | Github | readme.txt |
| HP Alpha [aka DEC AXP] with OpenVMS | 64 bit (Linz-)Oberon System, V4 | modulaware.com | OpenVMS Alpha |
| X86, ARM, ARMv7, RISC-V or MIPS with Linux | Oberon Linux Revival, OLR | P. Matthias | P. Matthias |
| X86 PC with Linux, UltraSPARC with Solaris or Sun3 with SunOS | Ulm Oberon | HTTP server at UUlm | HTML page and manual pages in the downloads |
| X86 PC with various operating systems | Linz-Oberon, V4 | olymp.idle.at, JKU Linz and SourceForge | INSTALL at olymp.idle.at Wiki at Sourceforge |
| X86 PC with Windows or with *nix and Wine | BlackBox Component Builder, an IDE for Component Pascal | BB Community download area | BB Community download area |
| .NET and CLI | Gardens Point Component Pascal, GPCP application for .NET and CLI | Current project at github Original site from Archive.org | Current project at github Original site from Archive.org |
| JVM | Gardens Point Component Pascal application for JVM | Current project at github Original site from Archive.org | Current project at github Original site from Archive.org |
| Linux-386, Rasbian, Windows | Ofront Oberon to C translator | Josef Templ, github | Josef Templ, github |
| Linux, OS X or MS Windows | Eigen Compiler Suite | Releases | User Manual |
| Subsystem for Blackbox | Ofront+ Oberon to C translator | various Oberon dialects | github |
Source Texts in Active Oberon :
| Host Environment | Software | Installation archive | Installation Instructions |
| Bare X86 PC | A2 = AOS = Bluebottle, Bluebottle in Wikipedia | SourceForge | Contemporary instructions |
| X86 PC with Solaris, Linux or MacOSX (Darwin). | UnixAos = UnixA2 | Uni-Bremen, G. Feldmann | Uni-Bremen, G. Feldmann |
| X86 PC with A2 or UnixA2 or WinA2 | Oberon subsystem of A2 | Included in A2, UnixA2 and WinA2 | Included in A2, UnixA2 and WinA2 |
Source Texts in Oberon-07 :
| Host Environment | Software | Installation archive | Installation Instructions |
| FPGA RISC | V5, Oberon V5 in Wikipedia | N. Wirth P. Reed | N. Wirth P. Reed |
| Oberon/Android, Linux, Mac OS X, Unix or MS Windows on a wide variety of machines | RISC Emulator written in C. | P. De Wachter | P. De Wachter |
| Unix command line | Norebo | P. De Wachter | P. De Wachter |
| Oberon RISC processor or emulation of it | Extended Oberon | A. Pirklbauer README Documentation Oberon‑extended Oberon-retro-compiler | A. Pirklbauer README Documentation Oberon‑extended Oberon-retro-compiler |
| Web browser | Emulator written in JavaScript. | Michael Schierl | Michael Schierl |
| Web browser | Emulator written in Java. | Michael Schierl | Michael Schierl |
| Linux or Mac OS | Integrated Oberon with an emulator written in the Go programming language. | Charles Perkins | Charles Perkins |
| ARMv7, RISC-V or MIPS running Linux. RISC-V running FreeRTOS on Sipeed M1s, Linux 32bit and Linux 64bit. | Project Oberon Linux, POL; Using native compiler and Linux Kernel functions. | P. Matthias | P. Matthias |
| JVM | Project Oberon using oberonc compiler from L. Boasso | P. Matthias | P. Matthias |
| JVM | Oberonc compiler for Oberon-07. | L. Boasso | L. Boasso |
| Any system capable of running QEMU | qemu-risc6 fork of QEMU | Charles Perkins. | Charles Perkins. |
| Any system capable of running BlackBox Component Builder | Oberon-07 compiler written in Oberon-2. | Alexander V. Shiryaev | Alexander V. Shiryaev |
| Linux, OS X or MS Windows | oberon-riscv-emu | Rikke Solbjørg | Rikke Solbjørg |
| Linux, OS X or MS Windows with oberon-riscv-emu or a bare RISC-V machine. | oberon-riscv | Rikke Solbjørg | Rikke Solbjørg |
* 1 2 The Oberon language evolved through several variations including Oberon-90 in which Cross-platform Oberon is written. The differences between the latest 1990 version of Oberon and the 1991 superset, Oberon-2, are explained in bibliography references Moe91 and MoW91a.
* 1 2 3 4 In some cases the host environment is a bare machine. Otherwise it is a machine running another system.
* ↑ Presentation at VCFE 23.0, September 2024. Jump to 35:46.
* ↑ Hypothetically a Ceres can also be built with wire wrap.
* ↑ PAL = Platform Abstraction Layer written by Rochus Keller and included with Cross-platform Oberon. Precompiled systems are currently available for Linux x86 & x64, Mac M1 & x64 and Windows x86 & x64. Porting to another system is primarily porting the PAL library.
* ↑ Links to precompiled images for MS Windows, Linux and MacOS are at the bottom of the Github page.
* ↑ Including the Transmeta Crusoe 5400 and the StrongARM SA 110 and SA 1110.
* ↑ A PC can boot from an Oberon0 diskette in an internal drive. In that case installation of ETH Oberon can proceed directly without involvement of DOS. Part 2 in the series includes a helpful explanation of the user interface.
* ↑ Sources for Release 2.0 are available. ASCII sources can be read with any contemporary editor. The Text sources should be read in an Oberon system; otherwise display by Linux gedit may be tolerable.
* ↑ Also referred to as "ETH Oberon Plugin for Windows" and "Spirit of Oberon System3 for Windows".
* ↑ A server at ftp://ftp.ssw.uni-linz.ac.at/ remains accessible to an FTP client and installation archives can be retrieved. The Firefox browser is unable to navigate into the subdirectories.
* ↑ Sources following ETH Oberon closely. Note "Current state ... network not working."
* ↑ V4 can also execute on obsolete systems 680x0 MacIntosh and PowerMac with MacOS to version 9 inclusive, Amiga, Atari ST, DECstation, HP-UX, IBM RS/6000, SGI IRIS and SPARC with Solaris. Refer to https://sourceforge.net/projects/oberon/ and https://ssw.jku.at/Research/Projects/Oberon.html. A native version has not been produced.
* ↑ olymp.idle.at has verion 1.7.02. The last version at JKU Linz is 1.5.
* 1 2 GPCP provides a compiler for Component Pascal; not a full Oberon subsystem.
* ↑ During the summer of 2019 work was underway at the ETHZ to improve portability and other aspects. Until the work is completed, the user may encounter difficulties with the native variant of A2. The Oberon subsystem remains available in UnixA2 and WinA2. A notice was in the mailing list at 2019-07-03. Patience is advised.
* ↑ The SDL2 library and a C99 capable C compiler are required. GCC or Clang suffice for compiling the emulator.
* ↑ A software allowing execution of an Oberon command without the Oberon system and interface. The Oberon compiler, for example, can be executed at the Unix command line.
* ↑ Extended Oberon does not modify the RISC processor; it modifies only the Oberon system which runs on it.
* ↑ Nomenclature explained in the Oberon mailing list at 2023-01-18.
* ↑ The TypeRules document is noteworthy. Specific aspects of types are discussed in the mailing list beginning at 2019-12-07.
| ← Naming | ↑ front page | Licenses → |