limit number of loops inside main_runLoop.

avr/devices/all/main.asm

@@ -57,7 +57,9 @@ main_loop:
     bigcall systemSleep   ; system-dependant
 
     ; run loop as long as some run function returns with CFLAG set
+    clr r17
 main_runLoop:
+    push r17
       clr r16
       push r16
         bigcall runModules
@@ -72,10 +74,16 @@ main_runLoop:
       push r16
         bigcall onEveryLoop   ; call into main app
       pop r16
+    pop r17
+
+    tst r16
+    breq main_endRunLoop
+    inc r17
+    cpi r17, 2
+    brcc main_endRunLoop
+  brne main_runLoop
+main_endRunLoop:
 
-      tst r16
-    brne main_runLoop
-    
 #ifdef MODULES_NETWORK
   #ifndef MAIN_WITHOUT_MSG_HANDLING
     rcall mainHandleMessages