Braktif is a 28-state cellular automaton, defined in ALPACA by Chris Pressey in 2005, which simulates the action of a language very similar to both Smallfuck (in terms of instruction set) and Archway (in terms of program structure). It was ostensibly designed as yet another test of the wire-crossing problem, but it is far more likely it was just done for entertainment.
The Smallfuck program
corresponds to the Braktif program
* <<*[--]* 000000000000000000 *[----- --] -----------------d-i-- --------
The above program demonstrates some of the features of Braktif. The symbols
><* represent instructions, in the manner of Smallfuck. The
i represents the instruction pointer, which reacts to the instructions. The
d represents the the data pointer and the series of
0's represents the data store (which may be considered extending infinitely to the left.) The series of
-'s represent a bus along which the data pointer and the instruction pointer communicate by sending each other messages. The code must be structured a certain way, with each nested while loop "one level up" from the loop that contains it, in the manner of Archway.