X-Git-Url: https://git.libre-soc.org/?p=soc.git;a=blobdiff_plain;f=src%2Fregfile%2Fregfile.py;h=b1d6f1c6717351f7b38be806bb25462e51f3bbf0;hp=29fbda65b14ad4546e264f3a57f31af06389c900;hb=bc60901a3dff5b58ecf9285d810f9c8d6583ddaa;hpb=a7b8337867b15252dc1c63b7e3dc757d3449a6e1

diff --git a/src/regfile/regfile.py b/src/regfile/regfile.py
index 29fbda65..b1d6f1c6 100644
--- a/src/regfile/regfile.py
+++ b/src/regfile/regfile.py
@@ -10,7 +10,7 @@ import operator
 
 
 class Register(Elaboratable):
-    def __init__(self, width, writethru=False):
+    def __init__(self, width, writethru=True):
         self.width = width
         self.writethru = writethru
         self._rdports = []
@@ -65,16 +65,16 @@ class Register(Elaboratable):
     def ports(self):
         res = list(self)
 
-def treereduce(tree):
+def treereduce(tree, attr="data_o"):
     #print ("treereduce", tree)
     if not isinstance(tree, list):
         return tree
     if len(tree) == 1:
-        return tree[0].data_o
+        return getattr(tree[0], attr)
     if len(tree) == 2:
-        return tree[0].data_o | tree[1].data_o
-    splitpoint = len(tree) // 2
-    return treereduce(tree[:splitpoint]) | treereduce(tree[splitpoint:])
+        return getattr(tree[0], attr) | getattr(tree[1], attr)
+    split = len(tree) // 2
+    return treereduce(tree[:split], attr) | treereduce(tree[split:], attr)
 
 
 class RegFileArray(Elaboratable):