X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=Alu.hs;h=ca2dbe9180613a3db75b55843660299246f809aa;hb=acb620510e3623e8dfd979a8b732babd19086a9b;hp=3880245ff0d82a8ecee0609575a925903b90e3c1;hpb=0bc61dd521c7211ba4db643036f8517bb8bb48f4;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/Alu.hs b/Alu.hs
index 3880245..ca2dbe9 100644
--- a/Alu.hs
+++ b/Alu.hs
@@ -61,11 +61,11 @@ salu High a b s = (s, a `hwand` b)
 salu Low a b s = (s, a `hwor` b)
 
 type ExecState = (RegisterBankState, Bit, Bit)
-exec :: (RegAddr, Bit, AluOp) -> ExecState -> (ExecState, ())
+exec :: (RegAddr, Bit, AluOp) -> ExecState -> (ExecState, (Bit))
 
 -- Read & Exec
 exec (addr, Low, op) s =
-  (s', ())
+  (s', z')
   where
     (reg_s, t, z) = s
     (reg_s', t') = register_bank (addr, Low, dontcare) reg_s
@@ -74,7 +74,7 @@ exec (addr, Low, op) s =
 
 -- Write
 exec (addr, High, op) s =
-  (s', ())
+  (s', dontcare)
   where
     (reg_s, t, z) = s
     (reg_s', _) = register_bank (addr, High, z) reg_s