brainfrick

A simple BrainF**k interpreter written in C for Linux.

Written for fun, cause why not!

Building And Running

To build:

$ make

And then to run:

$ ./brainfrick [FILE PATH]  

Example test programs may be found in /examples/

Note: Either .b or .bf files may be used.

Commands

This implementation supports all 8 of the standard BrainF**K commands. All other characters are ignored.

Character	Effect
>	Increments the data pointer by one.
<	Decrements the data pointer by one.
+	Increments the value at the data pointer by one.
-	Decrements the value at the data pointer by one.
.	Outputs one byte to standard output.
,	Reads one byte from standard input, storing it at the data-pointer.
[	Jumps forward to the command after the closing ], if the value at data-pointer is zero. Otherwise moves forward to next command.
]	Jumps backward to the command after the opening [, if the value at data-pointer is non-zero. Otherwise moves forward to next command.

Please reference this Wikipedia article for more information.

Implementation Notes

• The cell size is 8 bits (One byte).
• The data array's length is initially 30000, but expands to the right infinitely (In increments of 3K).
• When the data pointer is at the far left, decrementing it causes it to wrap around to the end of the array.
• The number of nested jumps is limited to 4096 levels.

Copyright

This software is licensed under MIT. Copyright © 2024 Zach Collins