From 9cc032816ebbc15b9739de32ad66bddc081c3458 Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Fri, 1 Feb 2013 00:35:16 -0300
Subject: [PATCH] ubb-la/gui.c (pos_step): step one sample at maximum zoom

This permits precise interval/frequency calculation with the user-defined
reference.
---
 ubb-la/gui.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ubb-la/gui.c b/ubb-la/gui.c
index abd4556..bb45ad8 100644
--- a/ubb-la/gui.c
+++ b/ubb-la/gui.c
@@ -466,7 +466,7 @@ static void show_divisions(void)
 
 static int pos_step(int zoom)
 {
-	return 1 << (MAX_ZOOM-zoom+1);
+	return zoom == MAX_ZOOM ? 1 : 1 << (MAX_ZOOM-zoom+1);
 }