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https://github.com/klus3kk/brainfuck-tutorial
This repository consists of the easy-to-understand tutorial of Brainfuck with some examples of usage.
https://github.com/klus3kk/brainfuck-tutorial
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This repository consists of the easy-to-understand tutorial of Brainfuck with some examples of usage.
- Host: GitHub
- URL: https://github.com/klus3kk/brainfuck-tutorial
- Owner: Klus3kk
- Created: 2024-06-28T16:11:57.000Z (7 months ago)
- Default Branch: main
- Last Pushed: 2024-07-01T09:13:51.000Z (6 months ago)
- Last Synced: 2024-07-03T02:03:22.374Z (6 months ago)
- Size: 25.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Brainfuck-Tutorial
Table of Contents
## Overview
This repository consists of the easy-to-understand tutorial of Brainfuck with some examples of usage.
## WHAT is Brainfuck?
Brainfuck is (or will be) the most complicated programming language you'll use because of how different the rules of writing are. The language is Turing-complete and it only consists of 8 operators. The language itself might be really challenging for begginers.
## What do you need?
Firstly, you need a compiler/interpreter (you can download one from here: https://github.com/fabianishere/brainfuck, requires C/CMake to work). You can also use the online one: https://www.tutorialspoint.com/execute_brainfk_online.php. Also, make sure that you have an ASCII chart ready because you'll use it A LOT for writing text as the output. Also, the calculator, for calculations.
## BASICS
Let's start from explaining what does each operator do:
* '<' - moves the pointer to the right by one block
* '>' - moves the pointer to the left by one block
* '+' - increases value stored at the block by the memory pointer
* '-' - decreases value stored at the block by the memory pointer
* '[' - it's like while(current_value_of_the_block != 0)
* ']' - end of while loop (if the current value of the block is 0)
* ',' - inputs one character
* '.' - prints 1 character
Any other characters are considered as comments. All memory blocks are set to zero at the beggining.
## EXAMPLES
Here are some examples:
```
>>>-<+
```
- First, we're moving the pointer by three position, so the pointer should point at the block index 3 (because we're starting from index 0 block)
- Then we're decreasing the value of the current pointed block by 1 (so it's -1)
- Then we're moving back by one and we're increasing the value of the block by 1
Final results:
```
[0] [1] [2] [3].....
0 0 1 -1
^
```
Next one:
```
+++[->+<]
```
- We're increasing current memory pointers (index 0) value to 3 (+++)
- Then we're entering the loop which decreases the value of the current value of the index 0 block by one,
- After that we move to the index 1 block and we increase it's value by one
- Then we revert back to the first block
- The loop breaks when the first index value will be 0
So the final results should look like this:
```
[0] [1] [2] [3].....
0 3 0 0
^
```
## Hello world
Here's the basic program that writes "Hello World!" at the screen (here's when you use ASCII table c:)
```
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.
```