1 files changed, 2 insertions, 0 deletions
diff --git a/README b/README
index 352e7e9..25dc420 100644
--- a/README
+++ b/README
@@ -88,6 +88,8 @@ VCC on counters stabilize the circuit on slow clock
 18.11.2020:
 playing with some cli, sei, having a copy of the counter and
 optimizing display (refresh on change only)
+X and Y are not stored in the interrupt routine, why this is
+extremely bad, is obious! :-)
 
 commands
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