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Oberon is a general-purpose, procedural programming language. Its type-safety and module consistency-checking features facilitate the development of secure and reliable software. Oberon includes low-level features that make it particularly suited to the development of real-time applications on ARM microcontrollers.

In addition to the usual range of programming language facilities Oberon features include:

• Type-extension capabilities
• Assertions
• Automatic array index checking
• IEEE Standard format REALs
• Version consistency and type-checking across modules
• Explicit low-level access to memory, registers etc.
• Read-only access to external variables
• Nested procedures
• Nested comments

Documentation

These documents are included with all editions of Astrobe:

• The Programming Language Oberon by Prof Niklaus Wirth (81 KB PDF file. 17 pages)
  The complete official definition of the May 2016 Revision of the Oberon language.

• ARM Cortex-M Oberon Programmers Guide by CFB Software (856 KB PDF file. 22 pages)
  General Astrobe Oberon programming information.

• Oberon Syntax Diagrams by CFB Software (110 KB zipped Windows CHM Help file)
  A cross-referenced, quick, visual summary of the Oberon language syntax.

These documents are included with the relevant edition of Astrobe:

• Oberon for Cortex-M3 Microcontrollers by CFB Software (1.2 MB PDF file. 69 pages)
  Astrobe for Cortex-M3 Oberon memory maps, library modules, implementation details etc.

• Oberon for Cortex-M4 Microcontrollers by CFB Software (1.14 MB PDF file. 62 pages)
  Astrobe for Cortex-M4 Oberon memory maps, library modules, implementation details etc.

• Oberon for Cortex-M7 Microcontrollers by CFB Software (1.03 MB PDF file. 53 pages)
  Astrobe for Cortex-M7 Oberon memory maps, library modules, implementation details etc.

The following books are general Oberon programming texts which include numerous documented source code examples. Most of the OS-independent procedures should compile without modification using Oberon.

• Algorithms and Data Structures - Oberon Edition by Niklaus Wirth (2.29 MB PDF file. 212 pages)
  Many useful general programming examples - sorting, searching, linear lists, recursion, tree  structures, hashing functions etc. All of the source code is presented in Oberon.

• Programming in Oberon - A Tutorial by Niklaus Wirth (427 KB PDF file. 64 pages) 
  An introduction to programming in general, and a guide to programming in the language Oberon in particular. This edition describes the latest revision of Oberon as used in Astrobe.