Added note about state handling

diff --git a/src/defs.s b/src/defs.s
index 3a672f0353993f85508fc5221c8ef33959e951f0..f76d1f3569003f056be19dc405d1cbc1babf4069 100644 (file)
--- a/src/defs.s
+++ b/src/defs.s
@@ -74,7 +74,12 @@
 .se 0
   ; time until next state 
 .de st_time, 1
-  ; state routine 
+  ; state routine
+  ; it can return 0000 in hl
+  ; or a new state address in hl
+  ; if hl is not 0000 after
+  ; the calling state's address
+  ; will be set to hl immediatly 
 .de st_routine, 2
   ; next state
 .de st_next, 2