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https://github.com/bynect/bflc
A modular compiler framework for Brainfuck-like languages
https://github.com/bynect/bflc
assembly assembly-x86-64 backend brainfuck brainfuck-asm brainfuck-compiler brainfuck-language compiler compiler-backend compiler-design compiler-frontend compiler-optimization frontend intel-nasm-syntax jit jit-compiler machine-code
Last synced: about 1 month ago
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A modular compiler framework for Brainfuck-like languages
- Host: GitHub
- URL: https://github.com/bynect/bflc
- Owner: bynect
- License: apache-2.0
- Created: 2021-04-30T21:35:21.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-09-13T18:23:38.000Z (over 2 years ago)
- Last Synced: 2023-03-04T14:58:25.032Z (almost 2 years ago)
- Topics: assembly, assembly-x86-64, backend, brainfuck, brainfuck-asm, brainfuck-compiler, brainfuck-language, compiler, compiler-backend, compiler-design, compiler-frontend, compiler-optimization, frontend, intel-nasm-syntax, jit, jit-compiler, machine-code
- Language: C
- Homepage:
- Size: 287 KB
- Stars: 4
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# The bflc framework
## Overview
The BrainFuck-like Languages Compiler (bflc) is a compiler framework that targets
[Brainfuck][brainfuck] and closely [related languages][family].
## Build
Before building, get the source code by cloning the repository.
```sh
git clone https://github.com/bynect/bflc.git
```
Build the project using CMake.
```sh
cmake -B _build
make -C _build
```
### Note
Guaranteed to work for Linux, requires the Unix Makefile generator for CMake.
## Compiler
The compiler is a terminal interface for the [blfc library](#library).
### Options
- `--debug` Set debug output
- `--verbose` or `-v` Set verbose output
- `--help` or `-h` Print help message
- `--version` Print version message
- `--frontend=STRING` Set one of the [available frontends](#supported-frontends). The default is `brainfuck`
- `--backend=STRING` Set one of the [available backends](#supported-backends). The default is `amd64_asm`
- `--front=STRING` Alternative name for `--frontend` option
- `--back=STRING` Alternative name for `--backend` option
- `-o` Set output file path. The default is `output`
- `-fread` Use read syscall (not available in all backends)
- `-fwrite` Use write syscall (not available in all backends)
- `-fsyscall` Equivalent to `-fread` and `-fwrite`
- `-fcell=INT` Set the number of cells (default is `30000`)
### Example
```sh
# Compile echo.bf to x86_64 nasm assembly
bflc echo.bf -o echo.asm
```
### Note
The `amd64` backend is not supported at the moment.
To create x86\_64 executables assemble the output of `amd64_asm`.
## Library
The framework is by default built as a standalone static library `libbflc.a`,
that can be easily linked with your projects.
The frontends and backends are not included in the static library,
so you must compile them separately.
### Supported frontends
- [Brainfuck][brainfuck] frontend ([`brainfuck`](/front/brainfuck.c))
- [FuckbeEs][fuckbees] frontend ([`fuckbees`](/front/fuckbees.c))
### Supported backends
- [X86\_64 assembly](x64-asm) backend, uses NASM syntax ([`amd64_asm`](/back/amd64_asm.c))
- [X86\_64 machine code](x64-mach) backend, only for JIT-ing ([`amd64`](/back/amd64.c))
### Jit integration
Backends may generate machine code (for example `amd64`).
Since you can use the framework as a library you can create a JIT quite easily.
A practical [integration example](/jit/example.c) is also available.
## Contributing
Contributions are welcome.
Please open an issue first for major changes.
Before pushing contributions, please check for errors, memory leaks and other
problems with either [Asan][asan] or [Valgrind][valgrind].
## License
The bflc framework is licensed under the terms and conditions of the
[Apache-2.0 License](LICENSE).
[family]: https://esolangs.org/wiki/Trivial_brainfuck_substitution
[brainfuck]: https://en.wikipedia.org/wiki/Brainfuck
[fuckbees]: https://esolangs.org/wiki/FuckbeEs
[x64-asm]: https://en.wikipedia.org/wiki/X86_assembly_language
[x64-mach]: https://www.felixcloutier.com/x86
[asan]: https://en.wikipedia.org/wiki/AddressSanitizer
[valgrind]: https://valgrind.org/