From: Christiaan Baaij <christiaan.baaij@gmail.com>
Date: Tue, 25 Aug 2009 10:32:02 +0000 (+0200)
Subject: Add .hs file of PolyAlu
X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fmaster-project%2Fhaskell-symposium-talk.git;a=commitdiff_plain;h=4872fec52469b7300aeeafd3549a3a5a27cc3139

Add .hs file of PolyAlu
---

diff --git a/PolyAlu.hs b/PolyAlu.hs
new file mode 100644
index 0000000..afe9f5d
--- /dev/null
+++ b/PolyAlu.hs
@@ -0,0 +1,56 @@
+{-# LINE 4 "PolyAlu.lhs" #-}
+{-#  LANGUAGE  TypeOperators, TypeFamilies, FlexibleContexts  #-}
+module PolyCPU where
+
+import qualified Prelude as P
+{-# LINE 27 "PolyAlu.lhs" #-}
+import CLasH.HardwareTypes
+import CLasH.Translator.Annotations
+{-# LINE 37 "PolyAlu.lhs" #-}
+type Op s a         =   a -> Vector s a -> a
+type Opcode         =   Bit
+{-# LINE 42 "PolyAlu.lhs" #-}
+type RegBank s a    =   Vector (s :+: D1) a
+type RegState s a   =   State (RegBank s a)
+{-# LINE 47 "PolyAlu.lhs" #-}
+type Word           =   SizedInt D12
+{-# LINE 55 "PolyAlu.lhs" #-}
+primOp :: (a -> a -> a) -> Op s a
+primOp f a b = a `f` a
+{-# LINE 60 "PolyAlu.lhs" #-}
+vectOp :: (a -> a -> a) -> Op s a
+vectOp f a b = foldl f a b
+{-# LINE 69 "PolyAlu.lhs" #-}
+alu :: 
+  Op s a -> 
+  Op s a -> 
+  Opcode -> a -> Vector s a -> a
+alu op1 op2 Low    a b = op1 a b
+alu op1 op2 High   a b = op2 a b
+{-# LINE 82 "PolyAlu.lhs" #-}
+registerBank :: 
+  ((NaturalT s ,PositiveT (s :+: D1),((s :+: D1) :>: s) ~ True )) =>
+  (RegState s a) -> a -> RangedWord s ->
+  RangedWord s -> Bit -> ((RegState s a), a )
+  
+registerBank (State mem) data_in rdaddr wraddr wrenable = 
+  ((State mem'), data_out)
+  where
+    data_out  =   mem!rdaddr
+    mem'          | wrenable == Low  = mem
+                  | otherwise        = replace mem wraddr data_in
+{-# LINE 100 "PolyAlu.lhs" #-}
+{-# ANN actual_cpu TopEntity#-}
+actual_cpu :: 
+  (Opcode, Word, Vector D4 Word, 
+  RangedWord D9, 
+  RangedWord D9, Bit) -> 
+  RegState D9 Word ->
+  (RegState D9 Word, Word)
+
+actual_cpu (opc, a ,b, rdaddr, wraddr, wren) ram = (ram', alu_out)
+  where
+    alu_out = alu simpleOp vectorOp opc ram_out b
+    (ram',ram_out)  = registerBank ram a rdaddr wraddr wren
+    simpleOp =  primOp  (+)
+    vectorOp =  vectOp  (+)