clash-ghc v1.0.0 Release Notes
Release Date: 2019-09-03 // over 4 years ago-
- 10x - 50x faster compile times
- New features:
- API changes: check the migration guide at the end of
Clash.Tutorial - All memory elements now have an (implicit) enable line; "Gated" clocks have been removed as the clock wasn't actually gated, but implemented as an enable line.
🔧 Circuit domains are now configurable in:
- (old) The clock period
- (new) Clock edge on which memory elements latch their inputs (rising edge or falling edge)
- (new) Whether the reset port of a memory element is level sensitive (asynchronous reset) or edge sensitive (synchronous reset)
- (new) Whether the reset port of a memory element is active-high or active-low (negated reset)
- (new) Whether memory element power on in a configurable/defined state (common on FPGAs) or in an undefined state (ASICs)
- See the
blog post <https://clash-lang.org/blog/0005-synthesis-domain/>__ on this new feature
Data types can now be given custom bit-representations: http://hackage.haskell.org/package/clash-prelude/docs/Clash-Annotations-BitRepresentation.html
Annotate expressions with attributes that persist in the generated HDL, e.g. synthesis directives: http://hackage.haskell.org/package/clash-prelude/docs/Clash-Annotations-SynthesisAttributes.html
Control (System)Verilog module instance, and VHDL entity instantiation names in generated code: http://hackage.haskell.org/package/clash-prelude/docs/Clash-Magic.html
Much improved infrastructure for handling of unknown values: defined spine, but unknown leafs: http://hackage.haskell.org/package/clash-prelude/docs/Clash-XException.html#t:NFDataX
Experimental: Multiple hidden clocks. Can be enabled by compiling
clash-preludewith-fmultiple-hidden👍 Experimental: Limited GADT support (pattern matching on vectors, or custom GADTs as longs as their usage can be statically removed; no support of recursive GADTs)
Experimental: Use regular Haskell functions to generate HDL black boxes for primitives (in an addition to existing string templates for HDL black boxes) See for example: http://hackage.haskell.org/package/clash-lib/docs/Clash-Primitives-Intel-ClockGen.html
🛠 Fixes issues:
#316 <https://github.com/clash-lang/clash-compiler/issues/316>__#319 <https://github.com/clash-lang/clash-compiler/issues/319>__#323 <https://github.com/clash-lang/clash-compiler/issues/323>__#324 <https://github.com/clash-lang/clash-compiler/issues/324>__#329 <https://github.com/clash-lang/clash-compiler/issues/329>__#331 <https://github.com/clash-lang/clash-compiler/issues/331>__#332 <https://github.com/clash-lang/clash-compiler/issues/332>__#335 <https://github.com/clash-lang/clash-compiler/issues/335>__#348 <https://github.com/clash-lang/clash-compiler/issues/348>__#349 <https://github.com/clash-lang/clash-compiler/issues/349>__#350 <https://github.com/clash-lang/clash-compiler/issues/350>__#351 <https://github.com/clash-lang/clash-compiler/issues/351>__#352 <https://github.com/clash-lang/clash-compiler/issues/352>__#353 <https://github.com/clash-lang/clash-compiler/issues/353>__#358 <https://github.com/clash-lang/clash-compiler/issues/358>__#359 <https://github.com/clash-lang/clash-compiler/issues/359>__#363 <https://github.com/clash-lang/clash-compiler/issues/363>__#364 <https://github.com/clash-lang/clash-compiler/issues/364>__#365 <https://github.com/clash-lang/clash-compiler/issues/365>__#371 <https://github.com/clash-lang/clash-compiler/issues/371>__#372 <https://github.com/clash-lang/clash-compiler/issues/372>__#373 <https://github.com/clash-lang/clash-compiler/issues/373>__#378 <https://github.com/clash-lang/clash-compiler/issues/378>__#380 <https://github.com/clash-lang/clash-compiler/issues/380>__#381 <https://github.com/clash-lang/clash-compiler/issues/381>__#382 <https://github.com/clash-lang/clash-compiler/issues/382>__#383 <https://github.com/clash-lang/clash-compiler/issues/383>__#387 <https://github.com/clash-lang/clash-compiler/issues/387>__#393 <https://github.com/clash-lang/clash-compiler/issues/393>__#396 <https://github.com/clash-lang/clash-compiler/issues/396>__#398 <https://github.com/clash-lang/clash-compiler/issues/398>__#399 <https://github.com/clash-lang/clash-compiler/issues/399>__#401 <https://github.com/clash-lang/clash-compiler/issues/401>__#403 <https://github.com/clash-lang/clash-compiler/issues/403>__#407 <https://github.com/clash-lang/clash-compiler/issues/407>__#412 <https://github.com/clash-lang/clash-compiler/issues/412>__#413 <https://github.com/clash-lang/clash-compiler/issues/413>__#420 <https://github.com/clash-lang/clash-compiler/issues/420>__#422 <https://github.com/clash-lang/clash-compiler/issues/422>__#423 <https://github.com/clash-lang/clash-compiler/issues/423>__#424 <https://github.com/clash-lang/clash-compiler/issues/424>__#438 <https://github.com/clash-lang/clash-compiler/issues/438>__#450 <https://github.com/clash-lang/clash-compiler/issues/450>__#452 <https://github.com/clash-lang/clash-compiler/issues/452>__#455 <https://github.com/clash-lang/clash-compiler/issues/455>__#460 <https://github.com/clash-lang/clash-compiler/issues/460>__#461 <https://github.com/clash-lang/clash-compiler/issues/461>__#463 <https://github.com/clash-lang/clash-compiler/issues/463>__#468 <https://github.com/clash-lang/clash-compiler/issues/468>__#475 <https://github.com/clash-lang/clash-compiler/issues/475>__#476 <https://github.com/clash-lang/clash-compiler/issues/476>__#500 <https://github.com/clash-lang/clash-compiler/issues/500>__#507 <https://github.com/clash-lang/clash-compiler/issues/507>__#512 <https://github.com/clash-lang/clash-compiler/issues/512>__#516 <https://github.com/clash-lang/clash-compiler/issues/516>__#517 <https://github.com/clash-lang/clash-compiler/issues/517>__#526 <https://github.com/clash-lang/clash-compiler/issues/526>__#556 <https://github.com/clash-lang/clash-compiler/issues/556>__#560 <https://github.com/clash-lang/clash-compiler/issues/560>__#566 <https://github.com/clash-lang/clash-compiler/issues/566>__#567 <https://github.com/clash-lang/clash-compiler/issues/567>__#569 <https://github.com/clash-lang/clash-compiler/issues/569>__#573 <https://github.com/clash-lang/clash-compiler/issues/573>__#575 <https://github.com/clash-lang/clash-compiler/issues/575>__#581 <https://github.com/clash-lang/clash-compiler/issues/581>__#582 <https://github.com/clash-lang/clash-compiler/issues/582>__#586 <https://github.com/clash-lang/clash-compiler/issues/586>__#588 <https://github.com/clash-lang/clash-compiler/issues/588>__#591 <https://github.com/clash-lang/clash-compiler/issues/591>__#596 <https://github.com/clash-lang/clash-compiler/issues/596>__#601 <https://github.com/clash-lang/clash-compiler/issues/601>__#607 <https://github.com/clash-lang/clash-compiler/issues/607>__#629 <https://github.com/clash-lang/clash-compiler/issues/629>__#637 <https://github.com/clash-lang/clash-compiler/issues/637>__#644 <https://github.com/clash-lang/clash-compiler/issues/644>__#647 <https://github.com/clash-lang/clash-compiler/issues/647>__#661 <https://github.com/clash-lang/clash-compiler/issues/661>__#668 <https://github.com/clash-lang/clash-compiler/issues/668>__#677 <https://github.com/clash-lang/clash-compiler/issues/677>__#678 <https://github.com/clash-lang/clash-compiler/issues/678>__#682 <https://github.com/clash-lang/clash-compiler/issues/682>__#691 <https://github.com/clash-lang/clash-compiler/issues/691>__#703 <https://github.com/clash-lang/clash-compiler/issues/703>__#713 <https://github.com/clash-lang/clash-compiler/issues/713>__#715 <https://github.com/clash-lang/clash-compiler/issues/715>__#727 <https://github.com/clash-lang/clash-compiler/issues/727>__#730 <https://github.com/clash-lang/clash-compiler/issues/730>__#736 <https://github.com/clash-lang/clash-compiler/issues/736>__#738 <https://github.com/clash-lang/clash-compiler/issues/738>__