B Programming Language

Warning

Compiler is not fully implemented yet.

_{Logo by Strawberry 🍓}

Compiler for the B Programming Language implemented in Crust

Dependencies

• Rust - the compiler is written in it;
• fasm - used as the compiler backend;

Quick Start

$ make
$ ./build/b -run ./examples/hello_world.b

Also check out more examples at ./examples/.

Testing

The project comes with btest utility which tests the B compiler. It is built automatically along with the B compiler when you do make.

When you run it, it just builds and runs all the tests from the ./tests/ folder on all the supported targets and generates a matrix report. Give it a try to see it for yourself:

$ make
$ ./build/btest

It doesn't crash when it encounters errors, it just collects the statuses of the tests on all the platforms to give an overview of the current state of the compiler.

Slicing the Test Matrix

If you want to test only on a specific platform you can supply the flag -t

$ ./build/btest -t fasm-x86_64-linux

You can supply several platforms

$ ./build/btest -t fasm-x86_64-linux -t uxn

If you want to run a specific test case you can supply flag -c

$ ./build/btest -c upper

You can do several tests

$ ./build/btest -c upper -c vector

And of course you can combine both -c and -t flags to slice the Test Matrix however you want

$ ./build/btest -c upper -c vector -t fasm-x86_64-linux -t uxn

References

• https://en.wikipedia.org/wiki/B_(programming_language)
• https://www.nokia.com/bell-labs/about/dennis-m-ritchie/kbman.html
• https://github.com/tsoding/good_training_language
• https://www.felixcloutier.com/x86/
• https://www.scs.stanford.edu/~zyedidia/arm64/