Collection of circuits for Digital for learning purpose

The goal was mostly to build a brainfuck CPU from the ground up, memory, display, counter and all. But performance limitations do not allow for the millions gates required. Instead, the current BF CPU uses built-in parts, including the console output.

The custom RGB display was designed to show the output of mandelbrot.b (132 columns, 49 rows).

The brainfuck CPU features a preprocessor that performs transformations on the code in order to simplify (and speed up) the execution. In a single pass, it

• RLE compresses +->< instructions ;
• transforms - and < instructions into + and > respectively, with a negative operand
• transforms [ and ] into conditional JMPs

Might be of interest

• bf_cpu_module_w_console.dig
• bf_cpu_module_w_custom_rgb.dig

Remember to set the BF program in Digital > Edit > Circuit specific settings > Advanced > Program file

How to use:

• Download Digital
• Clone this repository
• In Digital, you might need to set Edit > Settings > Advanced > Library to the path of your clone of this repo.
• Open `bf_cpu_module_w_console.dig``
• Run