HQ9+

From Esolang
Jump to: navigation, search

HQ9+ is a joke language with four instructions:

Although the language is not of serious interest by itself, it can be useful to implement HQ9+ in a new esoteric programming language, since doing so proves that all the tasks above, except the quine, are possible. HQ9+ was created in 2001 by Cliff L. Biffle.

See also

  • HQ9++, an object-oriented extension of HQ9+.
  • CHIQRSX9+, another HQ9+ extension.
  • HQ9+B, an ℒ-complete extension of HQ9+.
  • HQ9+2D, a 2-D extension of HQ9+.
  • H9+, with one fewer instruction but still capable of all of the tasks.
  • FISHQ9+, HQ9+ and deadfish combined.
  • HI9+, which replaces Q with an instruction that prints the interpreter's source code.

External resources