clash-ghc - Haskell/GHC front-end for the Clash compiler

• See the LICENSE file for license and copyright details
• Contains code from the GHC compiler, see the LICENSE_GHC file for license and copyright details pertaining to that code.

Clash - A functional hardware description language

Clash is a functional hardware description language that borrows both its syntax and semantics from the functional programming language Haskell. The Clash compiler transforms these high-level descriptions to low-level synthesizable VHDL, Verilog, or SystemVerilog.

Features of Clash:

• Strongly typed (like VHDL), yet with a very high degree of type inference, enabling both safe and fast prototying using consise descriptions (like Verilog).

• 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 Signals, lead to natural descriptions of feedback loops.

• Support for multiple clock domains, with type safe clock domain crossing.

Open-source community

Clash benefits from an active community. Whether you need a question answered or want to contribute to open-source features, browse the features below to make the most of Clash.

• Discourse: long form discussions and questions
• Discord: short form discussions and community chat room
• Fosstodon: microblogging and community chat room
• Bluesky: microblogging and community chat room
• Github: issue tracker