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clash-ghc v0.7 Release Notes

Release Date: 2017-01-16 // over 7 years ago
    • 🆕 New features:
      • CLaSH.XException: a module defining an exception representing uninitialised values. Additionally adds the ShowX class which has methods that prints values as "X" where they would normally raise an XException exception.
      • Add BNat (and supporting functions) to CLaSH.Promoted.Nat: base-2 encoded natural numbers.
      • Add divSNat and logBaseSNat to CLaSH.Promoted.Nat: division and logarithm for singleton natural numbers.
      • Add predUNat and subUNat to CLaSH.Promoted.Nat: predecessor and subtraction for unary-encoded natural numbers.
      • Add dtfold to CLaSH.Sized.Vector: a dependently-typed tree-fold over Vec.
      • Add the perfect-depth binary trees module CLaSH.Sized.RTree
      • Synthesisable definitions of countLeadingZeros and countTrailingZeros for: BitVector, Signed, Unsigned, and Fixed
      • Add the (:::) type alias in CLaSH.NamedTypes which allows you to annotate types with documentation
    • 🔄 Changes:
      • asyncRam, blockRam, blockRamFile have a Maybe (addr,a) as write input instead of three separate Bool, addr, and a inputs.
      • asyncFIFOSynchronizer has a Maybe a as write-request instead of a separate Bool and a input
      • bundle' and unbundle' are removed; bundle now has type Unbundled' clk a -> Signal' clk a, unbundle now has type Signal' clk a -> Unbundled' clk a
      • subSNat now has the type SNat (a+b) -> SNat b -> SNat a (where it used to be SNat a -> SNat b -> SNat (a-b))
      • Renamed multUNat to mulUNat to be in sync with mulSNat and mulBNat.
      • The function argument of vfold in CLaSH.Sized.Vector is now (forall l . SNat l -> a -> Vec l b -> Vec (l + 1) b) (where it used to be (forall l . a -> Vec l b -> Vec (l + 1) b))
      • Cons constructor of Vec is no longer visible; (:>) and (:<) are now listed as constructors of Vec
      • Simulation speed improvements for numeric types