Merge branch 'master' of git://github.com/christiaanb/clash into cλash

[matthijs/master-project/cλash.git] / cλash / CLasH / VHDL / Generate.hs

diff --git a/cλash/CLasH/VHDL/Generate.hs b/cλash/CLasH/VHDL/Generate.hs
index d1bf3751e3209dc0d1b8b8f8453bdb225ba12b57..048a711a1e58e6f6d455651d742b84dfad6fb720 100644 (file)
--- a/cλash/CLasH/VHDL/Generate.hs
+++ b/cλash/CLasH/VHDL/Generate.hs
@@ -167,16 +167,18 @@ mkStateProcSm ::
 mkStateProcSm (old, new) = do
   nonempty <- hasNonEmptyType old 
   if nonempty 
-    then return [AST.CSPSm $ AST.ProcSm label [clk] [statement]]
+    then return [AST.CSPSm $ AST.ProcSm label [clockId,resetId] [statement]]
     else return []
   where
     label       = mkVHDLBasicId $ "state"
-    clk         = mkVHDLBasicId "clock"
     rising_edge = AST.NSimple $ mkVHDLBasicId "rising_edge"
     wform       = AST.Wform [AST.WformElem (AST.PrimName $ varToVHDLName new) Nothing]
-    assign      = AST.SigAssign (varToVHDLName old) wform
-    rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clk)]
-    statement   = AST.IfSm rising_edge_clk [assign] [] Nothing
+    clk_assign      = AST.SigAssign (varToVHDLName old) wform
+    rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clockId)]
+    resetn_is_low  = (AST.PrimName $ AST.NSimple resetId) AST.:=: (AST.PrimLit "'0'")
+    reset_statement = []
+    clk_statement = [AST.ElseIf rising_edge_clk [clk_assign]]
+    statement   = AST.IfSm resetn_is_low reset_statement clk_statement Nothing
 
 
 -- | Transforms a core binding into a VHDL concurrent statement
@@ -205,7 +207,7 @@ mkConcSm (bndr, app@(CoreSyn.App _ _))= do
   let valargs = get_val_args (Var.varType f) args
   genApplication (Left bndr) f (map Left valargs)
 
--- A single alt case must be a selector. This means thee scrutinee is a simple
+-- A single alt case must be a selector. This means the scrutinee is a simple
 -- variable, the alternative is a dataalt with a single non-wild binder that
 -- is also returned.
 mkConcSm (bndr, expr@(CoreSyn.Case (CoreSyn.Var scrut) b ty [alt])) 
@@ -879,7 +881,7 @@ genBlockRAM' (Left res) f args@[data_in,rdaddr,wraddr,wrenable] = do
         wform       = AST.Wform [AST.WformElem data_in Nothing]
         ramassign      = AST.SigAssign ramloc wform
         rising_edge_clk = genExprFCall rising_edge (AST.PrimName $ AST.NSimple clockId)
-        statement   = AST.IfSm (AST.And rising_edge_clk (wrenable AST.:=: AST.PrimLit "'1'")) [ramassign] [] Nothing
+        statement   = AST.IfSm (AST.And rising_edge_clk wrenable) [ramassign] [] Nothing
 
 -----------------------------------------------------------------------------
 -- Function to generate VHDL for applications