X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fmaster-project%2Fc%CE%BBash.git;a=blobdiff_plain;f=Adders.hs;h=3afb163b69c3263b6ef861d2edf18298a0b49c85;hp=d9c1d26f61be295d5061654608616117c31c2ac2;hb=HEAD;hpb=c170d5cf53ad578ea96b3e80b926e23c3b512295 diff --git a/Adders.hs b/Adders.hs index d9c1d26..3afb163 100644 --- a/Adders.hs +++ b/Adders.hs @@ -9,8 +9,9 @@ import Prelude hiding ( null, length, head, tail, last, init, take, drop, (++), map, foldl, foldr, zipWith, zip, unzip, concat, reverse, iterate ) -import Language.Haskell.Syntax +-- import Language.Haskell.Syntax import Types +import Types.Data.Num.Decimal.Literals import Data.Param.TFVec import Data.RangedWord import Data.SizedInt @@ -23,11 +24,11 @@ mainIO f = Sim.simulateIO (Sim.stateless f) () stateless :: (i -> o) -> (i -> () -> ((), o)) stateless f = \i s -> (s, f i) -show_add f = do print ("Sum: " P.++ (displaysigs s)); print ("Carry: " P.++ (displaysig c)) - where - a = [High, High, High, High] - b = [Low, Low, Low, High] - (s, c) = f (a, b) +-- show_add f = do print ("Sum: " P.++ (displaysigs s)); print ("Carry: " P.++ (displaysig c)) +-- where +-- a = [High, High, High, High] +-- b = [Low, Low, Low, High] +-- (s, c) = f (a, b) mux2 :: Bit -> (Bit, Bit) -> Bit mux2 Low (a, b) = a @@ -178,8 +179,11 @@ highordtest = \x -> xand a b = hwand a b -functiontest :: SizedWord D8 -> SizedWord D8 -functiontest = \a -> let r = a + ((-1) :: SizedWord D8) in r +functiontest :: TFVec D12 Bit -> TFVec D6 Bit +functiontest = \v -> let r = take d6 v in r + +functiontest2 :: SizedInt D8 -> SizedInt D7 +functiontest2 = \a -> let r = Data.SizedInt.resize a in r xhwnot x = hwnot x @@ -198,24 +202,24 @@ highordtest2 = \a b -> \c d -> op' d c -- Four bit adder, using the continous adder below -- [a] -> [b] -> ([s], cout) -con_adder_4 as bs = - ([s3, s2, s1, s0], c) - where - ((s0, _):(s1, _):(s2, _):(s3, c):_) = con_adder (P.zip ((P.reverse as) P.++ lows) ((P.reverse bs) P.++ lows)) +-- con_adder_4 as bs = +-- ([s3, s2, s1, s0], c) +-- where +-- ((s0, _):(s1, _):(s2, _):(s3, c):_) = con_adder (P.zip ((P.reverse as) P.++ lows) ((P.reverse bs) P.++ lows)) -- Continuous sequential version -- Stream a -> Stream b -> Stream (sum, cout) -con_adder :: Stream (Bit, Bit) -> Stream (Bit, Bit) +-- con_adder :: Stream (Bit, Bit) -> Stream (Bit, Bit) -- Forward to con_adder_int, but supply an initial state -con_adder pin = - con_adder_int pin Low +-- con_adder pin = +-- con_adder_int pin Low -- Stream a -> Stream b -> state -> Stream (s, c) -con_adder_int :: Stream (Bit, Bit) -> Bit -> Stream (Bit, Bit) -con_adder_int ((a,b):rest) cin = - (s, cout) : con_adder_int rest cout - where - (s, cout) = full_adder (a, b, cin) +-- con_adder_int :: Stream (Bit, Bit) -> Bit -> Stream (Bit, Bit) +-- con_adder_int ((a,b):rest) cin = +-- (s, cout) : con_adder_int rest cout +-- where +-- (s, cout) = full_adder (a, b, cin) -- vim: set ts=8 sw=2 sts=2 expandtab: