Brainfuck interpreter which uses uses a constant number of 8-bit cells, precomputes matching brackets, and has an accumulator mode.
The accumulator mode can be built using the accum make target. In this mode,
the . command adds the value of the current cell to an accumulator, the value
of the accumulator is output in hexadecimal at the end of program execution.
Execute one of the following to build the interpreter in normal or accumulator mode respectively:
make # normal mode
make accum # accum mode
This will create the brainfuck executable, which can be installed in the
/usr/local/bin directory manually or using:
make install # cp brainfuck /usr/local/bin
make uninstall # rm /usr/local/bin/brainfuck
brainfuck FILE
This will interpret the program in FILE and accept input from stdin.
Inputs to the interpreter are just characters, and as such it is difficult to
pass numbers as input directly, use printf:
printf '\x1\xF' | brainfuck ...
Programs may additionally be passed directly to the interpreter (instead of being written to/read from a file) as follows:
brainfuck <(printf ',[.,]')