diff --git a/src/simudator/core/processor.py b/src/simudator/core/processor.py
index 6e76bb221191f56e5d29618fce3a2d50cb15a36d..88f8c9662563b6443a767baec4782b580160a2d3 100644
--- a/src/simudator/core/processor.py
+++ b/src/simudator/core/processor.py
@@ -49,7 +49,7 @@ class Processor:
         self.lambdas: dict[str, Callable[..., bool]] = {}
 
         # List containing all clock cycles where a new asm instruction started
-        self.assembly_cycles = []
+        self.assembly_cycles = [0]
 
     def do_tick(self) -> None:
         """