1 files changed, 10 insertions, 0 deletions
diff --git a/src/moves.ads b/src/moves.ads
index 1462847..728526c 100644
--- a/src/moves.ads
+++ b/src/moves.ads
@@ -32,6 +32,11 @@ package Moves is
             List : in     Path);
 
 
+    procedure Prefix
+           (This : in out Path;
+            Item : in     Move);
+
+
     function Latest
            (This : in Path)
         return Move;
@@ -46,6 +51,11 @@ package Moves is
         return Natural;
 
 
+    procedure Total_Delta
+           (This   : in     Path;
+            DX, DY :    out Integer);
+
+
 private