Kinda like BrainF* I see. Turing complete but a readability nightmare. Maybe I should try to write one for FORTH like for BrainF*. Was an interesting exercise especially the loops.
https://www.forth.com/embedded/#Annotated_example_source_cod... contains a version of the canonical washing machine program.
\ Top-level control
: WASHER ( -- ) WASH SPIN RINSE SPIN ;