Brainfuck interpreters written in pure assembly.
Super small and easy to understand
Right 300 lines of code, executable less than 12kB with a lot of padding.
I use C preprocessor to handle some macros. gcc and clang both
work for this.
You should NOT link the standard C library, since I write _start
as entry point on my own.
$ gcc asmbf.S -o asmbf -nostdlib -no-pie
$ clang asmbf.S -o asmbf -nostdlib -no-pie
$ asmbf SCRIPT_PATH
Written in assembly, it is only available on x86-64 Linux platforms.
Unfortunately, this interpreter will simply crash if you try to run a problemly brainfuck script.
asmbf has been ported to rv64gc platforms, see asmbf-rv64.S
Compile it with
$ gcc asmbf.S -o asmbf -nostdlib -no-pie -mno-relax asmbf-rv64.S -o asmbf-rv64
$ clang asmbf.S -o asmbf -nostdlib -no-pie -mno-relax asmbf-rv64.S -o asmbf-rv64
You could also try it with user mode QEMU, with command like
$ qemu-riscv64 asmbf-rv64 HelloWorld.bf