An optimizing brainfuck interpreter written in Rust.
Check out my blog for an in-depth look at how brainfrick-rs works:
https://rafibayer.github.io/2022/11/02/brainfrick.html
- Contraction
- Fuse repeated
>/<and+/-instructions
- Fuse repeated
- No-Op
- Skip No-Op instructions at compile-time
- Clear
- Replace
[-]with an internalClearinstruction
- Replace
- Copy Loop
- Replace certain copy/multiply operations with optimized instructions
samples/mandelbrot.bf runtimes
Unoptimized:
$ time cargo run --release -- samples/mandelbrot.bf
...
real 0m18.641s
user 0m0.000s
sys 0m0.015s
Fully Optimized:
$ time cargo run --release -- samples/mandelbrot.bf
...
real 0m5.276s
user 0m0.000s
sys 0m0.015s
sequenceDiagram
participant src as Source File (.bf)
participant main as Main
participant compiler as Compiler
participant vm as Virtual Machine
participant io as IO
src->>main:Open brainfuck source file
main->>compiler:Brainfuck src as &str
compiler->>compiler: Parse source to instructions
loop Optimizations
compiler->>compiler: Apply optimization
end
compiler->>compiler: pre-match loop braces
compiler->>main: Produce Compiled Program
main->>vm: Create and run VM for Program
vm->>io: Utilize configured IO
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