Bitxtreme

Bitxtreme is a joke language made by Pedro Gimeno Fortea based on BIT and OISC. Starting from the concept that everything is a bit, it pushes that concept to the extreme by eliminating the address-of-a-bit type present in BIT, thus making every possible address just one bit long, so no addresses but the first two ones are reachable. There are just four possible functionally different programs that can be written in this language. Input/output is done using special reserved addresses which, quite unsurprisingly, are addresses 1 and 0 respectively.

External resources

 * Language specification, examples and interpreter