Norebo is a hack to run some Project Oberon 2013 software on the Unix command line. Programs that use the GUI obviously won't work, but e.g. the compiler runs.
I probably won't be maintaining this project, so feel free to fork if you want to develop it further.
Runtime/RISC5 emulator and operating system interface.
Oberon/Unmodified source code from Project Oberon 2013.
Norebo/Norebo-specific and new modules.
Bootstrap/Pre-compiled modules to bootstrap Norebo.
build.shScript to rebuild Norebo. See Norebo in action.
PO2013 image build tools
This repository also contains tools to build fresh PO2013 filesystem images. Use it like so:
./fetch-sources.py upstream ./build-image.py upstream
upstream is the name of the directory where the sources
should live. (Replace it with the name of your choice.) This will
download the project sources, compile them, create runnable disk image
build/Oberon.dsk. The CSV build manifest controls which set of
files should define the resulting system. The disk image can be run
on the Project Oberon RISC emulator.
Supporting Oberon modules are stored in
Norebo: a virtual file
VFile) and a static linker for the Inner Core.
All this is based on code from PO2013.
New files are always created in the current directory. Old files are
first looked up in the current directory and if they are not found,
they are searched for in the path defined by the
environment variable. Files found via
OBERON_PATH are always opened
Files are not integrated with the garbage collector. If you don't close a file, it will remain open until Norebo exits.
Most runtime errors do not print a diagnostic message. Here's a table of exit codes:
1..7 | possibly a Modules error 5 | (also) unknown command 101 | array index out of range 102 | type guard failure 103 | array or string copy overflow 104 | access via NIL pointer 105 | illegal procedure call 106 | integer division by zero 107 | assertion violated