Fix ordering of mask values

We were creating the bits array in the wrong order, leading to
multiple-bit masks being decoded in reverse.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/bitfield b/bitfield
index ae5b138..467bf6b 100644 (file)
--- a/bitfield
+++ b/bitfield
@@ -54,7 +54,7 @@ class bitfield:
                val = mask << shift
                for i in range(0, width):
                        if mask & (1 << i):
-                               bits.append(width - i - 1 - shift)
+                               bits.insert(0, width - i - 1 - shift)
                return bits
 
        @staticmethod