Esolangs - Brainf**k. Mandelbrot set as you've never seen before..

[mnfisher]

I posted a simple Brainf**k compiler a few days ago.

I had an idea for a major improvement - rather than a (rather large) jump table - I would compile the jumps into the program code. Now jumps add 4 bytes per loop rather than a fixed table of 40k

So - with a little fiddling I got the mandelbrot.bf program to run on an esp32. The code is from https://github.com/ErikDubbelboer/brain ... delbrot.bf
and all credit to Erik for this incredible achievement!

To run - it only outputs a newline at the end of each line - so set PuTTY or your chosen terminal program to output a carriage return on newline.

To avoid WDT errors - I add a 100ms pause every 100000 bf instructions executed - I didn't do any tests to see how many loops could be run - so this could possibly be made a bit faster.

The mandelbrot set is output (slowly!) as an ASCII image - with the letters indicating how may iterations are needed to go to infinity..

tarpit.fcfx

(108.29 KiB) Downloaded 505 times

(Sorry might have had the wrong file before)


Martin

[mnfisher]

Changing the check on 'tim' in ExecuteBF to every 500000 loops gives a very nice speedup and still no wdt problems... and just tried 1000000 with a 50ms delay and all good too! - now up to 5000000 bf instructions before delay!

Compiling optimised for performance (idf.py menuconfig) gives a little extra whizz too

[mnfisher]

mandel.jpg (308.95 KiB) Viewed 5531 times

About 45mins!

[chipfryer27]

Hi

Impressive stuff indeed.

I hope that's a screenshot from your Sinclair

Regards

[mnfisher]

From the esp 32 to PuTTY. The flowcode compiled and then runs the brainf**k program..

Cool considering the only instructions are +1, - 1, next cell, previous cell, loop and print!

Turing complete!