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Yampa is a domain-specific embedded language for the programming of hybrid (discrete and continious) systems using the concepts of Functional Reactive Programming (FRP). Yampa is structured using Arrows, which greatly reduce the chance of introducing space- and time-leaks into reactive, time-varying systems.

Yampa was originally developed by the Yale Haskell Group.

Download Yampa


Primitive signal functions

Yampa signal functions.png

(download original Image:Yampa signal functions.svg‎)


External Links

Known users

  • YampaSynth - is a software synthesizer implemented in Haskell using Yampa. It contains a framework of sound generating and sound shaping modules (e.g. oscillator, amplifier, mixer, envelope generator, filter, etc.) and example applications.
  • Space Invaders; a video game, demonstrating the usage of Yampa
  • Nettle - Programming Network Routers
  • Euterpea - computer music development (also uses CCA)

Known forks