riscvuck ("risk-fuck") is a brainfuck interpreter written in RISC-V assembly for 32-Bit Linux, mainly for educational purposes. It mostly follows the reference and guidelines provided by brainfuck.org. However this implementation is technically not Turing-complete because the internal array size is static.
Install a RISC-V 32 Bit assembler and linker. Assemble and link bf.riscv. On Arch-based distros, ./build should work for this purpose.
The resulting program (let's call it bf) takes one argument: the source code file. You can run it on non-RISC-V architectures using qemu:
qemu-riscv32 bf hello-world.b
I/O is done through standard I/O.
Possible exit codes and their meanings:
0: success1: you didn't provide an input file2: couldn't open the file3: couldn't allocate memory to load the file or the brainfuck array4: you have a syntax error
- Input files must be
2^31 - 1bytes at max (if this bothers you: what's wrong with you?). - There are exactly 2^16 cells available, execution begins at the leftmost cell.
- Each cell holds a 32-Bit signed integer, initially all 0.
- If you access an out of bounds cell, may god have mercy on your soul.
- Reading from stdin
,when EOF has been reached continues execution as normal and leaves the current cell unchanged. - Syntax checking is done ahead of execution time.
Licensed under the MIT License (https://mit-license.org).