# CλaSH - A functional hardware description language
[](https://travis-ci.org/clash-lang/clash-prelude)
[](https://hackage.haskell.org/package/clash-prelude)
[](http://packdeps.haskellers.com/feed?needle=exact%3Aclash-prelude)
__WARNING__
Only works with GHC-8.0.* (http://www.haskell.org/ghc/download_ghc_8_0_2)!
CλaSH (pronounced ‘clash’) is a functional hardware description language that
borrows both its syntax and semantics from the functional programming language
Haskell. The CλaSH compiler transforms these high-level descriptions to
low-level synthesizable VHDL, Verilog, or SystemVerilog.
Features of CλaSH:
* Strongly typed, yet with a very high degree of type inference, enabling both
safe and fast prototyping using concise descriptions.
* Interactive REPL: load your designs in an interpreter and easily test all
your component without needing to setup a test bench.
* Higher-order functions, with type inference, result in designs that are
fully parametric by default.
* Synchronous sequential circuit design based on streams of values, called
`Signal`s, lead to natural descriptions of feedback loops.
* Support for multiple clock domains, with type safe clock domain crossing.
# Support
For updates and questions join the mailing list
clash-language+subscribe@googlegroups.com or read the
[forum](https://groups.google.com/d/forum/clash-language)