If called before display emulation is fully active.

diff --git a/drawing.cpp b/drawing.cpp
index 65aa12957b91eeb8d5f68dce92eda8c6e04e9371..b6e26c01272bad5037cbd60b28c7a87b2226b557 100644 (file)
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -378,6 +378,8 @@ int coord_native_to_amiga_x (int x)
 
 int coord_native_to_amiga_y (int y)
 {
+       if (!native2amiga_line_map)
+               return -1;
        return native2amiga_line_map[y] + thisframe_y_adjust - minfirstline;
 }