Plum is an interpreter designed to run PL/0 code. It is modal, and is capable of parsing, scanning, compiling, assembling, and executing programs. Compiled programs are executed on a provided stack-based virtual machine. Check out the manual for a full description of Plum's modes and flags.
Plum is derived from PLVM, an acronym for PL/0 Virtual Machine. The name is a bit of a misnomer, as Plum is no longer only a virtual machine... it's cool, so it stays!
To download and setup for use, clone the repository and build from the source files using the following commands. Note that you will need git and gcc installed to download and build the program. It's possible that this project could be built with a different C compiler but I haven't tried it.
git clone https://www.github.com/tgsachse/plum.git && cd plum ./build.sh
This command will produce an executable program named plum in the same folder as
the build script. This executable is the entire interpreter and can be used to run
your PL/0 files!
Plum's syntax looks like this:
./plum <mode> <filename> <--options>
The mode and filename are required. Zero or more options can be included but must trail the filename and mode as shown above. Here are a few example commands to get you started:
./plum run program1.plo ./plum run program2.plo --print-symbol-table --trace-cpu ./plum compile program3.plo --print-assembly --print-lexeme-table ./plum execute program4.plc --trace-all ./plum scan program5.plo --outfile lexemes.txt
Please file an issue report if you find any bugs.