brainfuck

A minimal Brainfuck interpreter and compiler written in C99.

Brainfuck is an esoteric programming language created by Urban Müller in 1993. See the language specification for details.

Language Reference

The brainfuck interpreter knows the following instructions:

Cmd	Effect
+	Increases element under pointer
-	Decrases element under pointer
>	Increases pointer
<	Decreases pointer
[	Starts loop, flag under pointer
]	Indicates end of loop
.	Outputs ASCII code under pointer
,	Reads char and stores ASCII under ptr

Hello World

This cryptic string:

++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.

Compiles to a native x86-64 executable:

$ ./bfc/bin/bfc bf/examples/hello_world.bf
Success! Executable: bin/hello_world

$ ./bin/hello_world
Hello World!

Interpreter

Simple brainfuck interpreter with 30,000 byte memory array. See bf/README.md for usage and examples.

Compiler

Optimizing compiler generating native x86-64 executables. See bfc/README.md for usage and examples.