I now also fixed the examples on the website [1] to work with version 0.1.3.0 of CLaSH :-)
-- Christiaan [1] http://clash.ewi.utwente.nl On Mar 22, 2011, at 6:43 PM, Christiaan Baaij wrote: > Hello, > > I am pleased to announce an incremental update to CLaSH, version 0.1.3.0. > > CLaSH can translate a (semantic) subset of Haskell to RTL-style VHDL. Instead > of being an embedded DSL like Lava or ForSyDe, CLaSH takes are more > 'traditional' approach to synthesis/compilation. It uses the GHC API as a > front-end for parsing, type-checking and desugaring the Haskell source. It > then exhaustively applies a list of meaning-preserving transformations to the > intermediate GHC Core representation until it is in the desired normal form. > The normalized Core/System Fc is then 'trivially' translated to RTL-style > VHDL. > > The new version of CLaSH has the following updates: > - Support for simulation and synthesis of multi-clock hardware [6] > - Significant synthesis speed-up (4x to 10x) > > CLaSH already supported synthesis of: > - User-defined Higher-Order functions [1] > - User-defined ADTs (GADTs are not tested, but *might* work) > - All of Haskell's choice constructs (Guards, Pattern Matching, etc.) > - Lambda-abstraction / Anonymous Functions > > You can use CLaSH as a library, but the use of the adapted GHC interpreter > (added the :vhdl command) is recommended. The interpreter can be found on the > CLaSH website [2], where you will also find examples, papers, tutorials, etc. > The library can be downloaded from Hackage [3]. > > I recently gave a demo of CLaSH at the DATE'11 conference in grenoble, this > demo already made use of the multi-clock feature (and is actually the only > reference if you want to experiment with multi-clock hardware yourself). The > source for the demo (audio spectrum analyzer programmed on an Altera Cyclone > II FPGA board) can be downloaded from my github page [4]. > > Do note that CLaSH only works when you have the 6.12.* branch of GHC > installed! I am currently analyzing the impact of the GHC API changes made in > the 7.0.* brach, and hope to make the transition to the new API within the > next month. Although the compiler is already used by 2 other phd's in our > group [5], it is not a thoroughly tested product, so your coding style might > not be anticipated by the current version of CLaSH ;-) > > -- Christiaan Baaij > > > [1] There is hard-coded support for a set of recursively defined higher-order > functions such as map, fold, zipWith, etc. > [2] http://clash.ewi.utwente.nl > [3] http://hackage.haskell.org/package/clash-0.1.3.0 > [4] http://github.com/christiaanb/DE1-Cyclone-II-FPGA-Board-Support-Package > [5] http://caes.ewi.utwente.nl > [6] Simulation does not show meta-stability, you will have to take care of > synchronization (dual flipflop) yourself _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
