https://github.com/kgabis/business-card-brainfuck

Tiny Brainfuck interpreter.
https://github.com/kgabis/business-card-brainfuck

brainfuck c interpreter

Last synced: 3 months ago
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Tiny Brainfuck interpreter.

• Host: GitHub
• URL: https://github.com/kgabis/business-card-brainfuck
• Owner: kgabis
• License: mit
• Created: 2015-12-02T20:50:27.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-04-02T09:08:50.000Z (almost 8 years ago)
• Last Synced: 2024-08-03T18:15:03.685Z (6 months ago)
• Topics: brainfuck, c, interpreter
• Language: C
• Size: 3.91 KB
• Stars: 18
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

Awesome Lists containing this project

• AwesomeInterpreter - business-card-brainfuck

README

        
## About

Business Card Brainfuck is a tiny [Brainfuck](http://en.wikipedia.org/wiki/Brainfuck) interpreter which fits on business cards and is only 512 bytes of code. It's inspired by [Business Card Raytracer](http://www.cs.utah.edu/~aek/code/card.cpp) by Paul Heckbert ([more](http://fabiensanglard.net/rayTracing_back_of_business_card/)).  

It exists mostly to demonstrate how easy it is to implement a Brainfuck interpreter and because I was bored one evening. Indented code is located in bf_indent.c.

## Code

```c

#include  // Krzysztof Gabis 2015

#include // Usage: ./bf program

int p[64*1024],d[1024*1024],r,c,t,e;int main(int c,char*v[]){

if(c<2)exit(1);FILE*f=fopen(v[1],"r");while(f&&(c=getc(f))!=

EOF)p[r++]=c;r=0;while((c=p[r])){e=0;if(c=='>')t++;if(c=='<')

t--;if(c=='+')d[t]++;if(c=='-')d[t]--;if(c=='.')putc(d[t],

stdout);if(c==',')d[t]=getc(stdin);while(c=='['&&!d[t]){if(

p[r]=='[')e++;if(p[r]==']'&&e--==1)break;r++;}while(c==']'&&

d[t]){if(p[r]==']')e++;if(p[r]=='['&&e--==1)break;r--;}r++;}}

```

## QR

![QR Code](qr.png)

## Usage

```

make

./bf filename

```

## Examples

```

./bf hw.bf

```

```

curl -s "http://www.99-bottles-of-beer.net/download/1718" > bottles.bf

./bf bottles.bf

```

```

curl -s "http://esoteric.sange.fi/brainfuck/utils/mandelbrot/mandelbrot.b" > mandelbrot.bf

./bf mandelbrot.bf

```

## License

[The MIT License (MIT)](http://opensource.org/licenses/mit-license.php)