This project has been superseded by bfci, and is no longer mantained.

A just-in-time compiling interpreter for the brainfuck programming language, to be built with the RPython Toolchain.

Download the latest pypy source, and build as follows:

python2 /path/to/pypy3.10-v7.3.13-src/rpython/bin/rpython --opt=jit bf-jit.py

Build dependencies are listed separately: https://doc.pypy.org/en/latest/build.html#install-build-time-dependencies

The resulting executable will be named bf-jit-c or similar in the current working directory. It can also be built without JIT support by removing the --opt=jit option. Build time will be shorter, and the resulting executable smaller.

Note that RPython is a dialect of python2, and accordingly the version of python/pypy used for the build must be 2.7. If python2 is no longer available for your system, it may be easiest to use a pre-built pypy2.7: https://www.pypy.org/download.html