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EmbeddableCompiler - Version of the Oberon RISC Compiler that does not (directly) depend on Fonts/Texts/Oberon

Description

The official version of the Oberon RISC compiler is tightly coupled to the Texts (and therefore Fonts) and Oberon (and therefore Input, Display, Viewers) modules. When having an Oberon compiler in an embedded environment, having these modules around without having an actual display, or capabilities to show fonts, may be undesired.

This modification modifies the Oberon RISC compiler so that its basic modules (ORS, ORB, ORG, ORP) only depend on the inner core as well as a stripped-down ORTexts module that only supports reading and only supports plain text files stored on disk.

An additional module ORCompiler provides the entry point for a full Oberon system (but, obviously, only supporting plain text and not supporting compilation from an unsaved Viewer). This module again depends on Texts and Oberon, but it is only about 60 lines long and easy to change.

Installation

  • Apply EmbeddableCompiler.patch to ORS.Mod and ORP.Mod.

  • Push ORTexts.Mod.txt and ORCompiler.Mod.txt.

  • Recompile the compiler:

    ORP.Compile ORTexts.Mod/s ~
ORP.Compile ORS.Mod/s ORB.Mod/s ~
ORP.Compile ORG.Mod/s ORP.Mod/s ~
ORP.Compile ORCompiler.Mod/s ~

  • Restart the system.

  • Use ORCompiler.Compile instead of ORP.Compile now to compile modules (text only).