BF instruction extension

Our goal is to extend the instructions of Brainf*ck as far as possible. Anything that you thought of could be one of the instructions. We'll start with the standard commands:

+-><[],.

Then add commands to set the cell to zero, and loops that only loop if the cell is zero:

=()

Then use base-36 to set the cell to that value:

1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ

Then use more base-36 to set the cell to 1 if it's equal to that value, else set to 0:

$§¥€¢£₩«»•abcdefghijklmnopwrstuvwxyz

Now we have this set:

+-><[],.=()1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ$§¥€¢£₩«»•abcdefghijklmnopwrstuvwxyz

Examples

Cat program

This infinitely repeating cat program employs the loop-while-zero iteration construct (…):

=(,.=)

Truth-machine

This implementation of a truth-machine harnesses the ability to simulate Boolean test results:

,[->+>+<<]>.--------------z[>.<]

Interpreter

• Common Lisp implementation of the brainfuck instruction extension project.