From fc4176085f196d7156d399fcb347bc8ae06f1d5d Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Sun, 9 Jan 2011 01:30:55 +0000
Subject: [PATCH] hostside: movpos: fix fundamental logic error in
 change_needed (!)

---
 hostside/movpos.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hostside/movpos.c b/hostside/movpos.c
index 224202c..7f31f07 100644
--- a/hostside/movpos.c
+++ b/hostside/movpos.c
@@ -752,7 +752,8 @@ static int change_needed(const MovFeatInfo *feati,
 			 MovPosComb startpoint, MovPosComb target) {
   int r;
   r= !SOMEP(startpoint) ||
-    (target - startpoint) / feati->weight % feati->posns;
+    (target / feati->weight) % feati->posns -
+    (startpoint / feati->weight) % feati->posns;
   if (DEBUGP(movpos,eval))
     DPRINTFA(" { %s:%s(%d*%d) %d..%d => %d }",
 	     feature_method(feati)->pname, feati->pname,
-- 
2.30.2