Fix previous commit for bug #13675.

 src/xdisp.c (move_it_vertically_backward, move_it_by_lines): Don't
 use the limitation on backwards movement when lines are truncated
 in the window.

2 files changed, 14 insertions, 2 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 163f2e164f4..4353b92673b 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2013-02-11  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (move_it_vertically_backward, move_it_by_lines): Don't
+        use the limitation on backwards movement when lines are truncated
+        in the window.  (Bug#13675)
+
 2013-02-11  Dmitry Antipov  <dmantipov@yandex.ru>
 
         * marker.c (set_marker_internal): If desired position is passed
diff --git a/src/xdisp.c b/src/xdisp.c
index 25c09fe40bd..3b82de9432d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -9003,7 +9003,10 @@ move_it_vertically_backward (struct it *it, int dy)
 
   /* Estimate how many newlines we must move back.  */
   nlines = max (1, dy / FRAME_LINE_HEIGHT (it->f));
-  pos_limit = max (start_pos - nlines * nchars_per_row, BEGV);
+  if (it->line_wrap == TRUNCATE)
+    pos_limit = BEGV;
+  else
+    pos_limit = max (start_pos - nlines * nchars_per_row, BEGV);
 
   /* Set the iterator's position that many lines back.  But don't go
      back more than NLINES full screen lines -- this wins a day with
@@ -9253,7 +9256,10 @@ move_it_by_lines (struct it *it, ptrdiff_t dvpos)
       /* Go back -DVPOS buffer lines, but no farther than -DVPOS full
          screen lines, and reseat the iterator there.  */
       start_charpos = IT_CHARPOS (*it);
-      pos_limit = max (start_charpos + dvpos * nchars_per_row, BEGV);
+      if (it->line_wrap == TRUNCATE)
+        pos_limit = BEGV;
+      else
+        pos_limit = max (start_charpos + dvpos * nchars_per_row, BEGV);
       for (i = -dvpos; i > 0 && IT_CHARPOS (*it) > pos_limit; --i)
         back_to_previous_visible_line_start (it);
       reseat (it, it->current.pos, 1);