X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=Adders.hs;h=2ee1de69534f144ab6f41d627fdfc7ce950e4f05;hb=e6cbe8ccf80244d1e36d30ffa45dcf56d8bf982f;hp=e6676e94888f3ce0bec9c9a489672da8288200e0;hpb=52d5de13a6c89e7dbc46627888210ddcda1c3e6c;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/Adders.hs b/Adders.hs
index e6676e9..2ee1de6 100644
--- a/Adders.hs
+++ b/Adders.hs
@@ -53,7 +53,7 @@ instance Inv (BitVec D0) where
 -}
 -- Not really an adder either, but a slightly more complex example
 inv :: Bit -> Bit
-inv a = hwnot a
+inv a = let r = hwnot a in r
 
 -- Not really an adder either, but a slightly more complex example
 invinv :: Bit -> Bit
@@ -146,6 +146,25 @@ rec_adder ((a:as), (b:bs)) =
     (rest, cin) = rec_adder (as, bs)
     (s, cout) = full_adder (a, b, cin)
 
+foo = id
+add, sub :: Int -> Int -> Int
+add a b = a + b
+sub a b = a - b
+
+highordtest = \x ->
+  let s = foo x
+  in
+     case s of
+       (a, b) ->
+         case a of
+           High -> add
+           Low -> let
+             op' = case b of
+                High -> sub
+                Low -> \c d -> c
+             in
+                \c d -> op' d c
+
 -- Four bit adder, using the continous adder below
 -- [a] -> [b] -> ([s], cout)
 --con_adder_4 as bs =