--- libecb/Changes	2011/06/22 15:18:06	1.2
+++ libecb/Changes	2011/12/10 11:58:38	1.3
@@ -1,3 +1,14 @@
 TODO: ffs/clz
 64 bit variants of everything
 TODO: examples from X for clz/ctz
+TODO: arithmetic right shift
+TODO: bit reversal
+TODO: template/generic functions for x32/x64 and so on
+TODO: generalised shift
+unsigned long gensh(unsigned long v, int x) {
+int a, b;
+    a = (v << x) & -(((unsigned int)x) < 32);
+    x = -x;
+    b = (v >> x) & -(((unsigned int)x) < 32);
+    return a|b;
+}