use BIT so akku wont get trashed at least in 40 cols mode

diff --git a/libsrc/c128/waitvblank.s b/libsrc/c128/waitvblank.s
index e0a469d0e9c93eb965c5f206e35fe5435b6c556d..c144e11c270ca536e4357d4b9727d985cadc5da9 100644 (file)
--- a/libsrc/c128/waitvblank.s
+++ b/libsrc/c128/waitvblank.s
@@ -5,7 +5,7 @@
 
 _waitvblank:
 
-        lda     MODE
+        bit     MODE
         bmi     @c80
 
 @l1: