avr: switch to iterative code for Widget_TreeMatchFlagsAndSendSignalToActive

avr/modules/lcd2/gui2/generic/widget.asm

@@ -1099,6 +1099,8 @@ Widget_TreeMatchOptsAndSendSignalToActive_done:
 ; @param  xh param2
 ; @clobbers any, !R16, !R17, !X, !Z
 
+#if 0
+; non-iterative routine
 Widget_TreeMatchFlagsAndSendSignalToActive:
   push zl
     push zh
@@ -1141,6 +1143,53 @@ Widget_TreeMatchFlagsAndSendSignalToActive_done:
   ret
 ; @end
 
+#else
+; iterative routine
+
+Widget_TreeMatchFlagsAndSendSignalToActive:
+  rcall OBJ_IsObject
+  brcc Widget_TreeMatchFlagsAndSendSignalToActive_ret
+  rcall widgetTreeMatchFlagsAndSendSignalToActive
+Widget_TreeMatchFlagsAndSendSignalToActive_ret:
+  ret
+; @end
+
+
+
+widgetTreeMatchFlagsAndSendSignalToActive:
+  push zl
+    push zh
+      ; check flags
+      rcall Widget_GetSdramPtr                             ; (none)
+      ldd r18, Y+WIDGET_SD_OFFS_FLAGS
+      sbrs r18, WIDGET_FLAGS_ACTIVE_BIT
+        rjmp widgetTreeMatchFlagsAndSendSignalToActive_done ; skip inactive branches
+      eor r18, r21                                          ; XOR with value (1 if different)
+      and r18, r20                                          ; AND with mask
+      brne widgetTreeMatchFlagsAndSendSignalToActive_l1
+      push r20
+        push r21
+          rcall OBJ_HandleSignalSaveInRegs
+        pop r21
+      pop r20
+widgetTreeMatchFlagsAndSendSignalToActive_l1:
+      bigcall OBJ_GetFirstChild
+widgetTreeMatchFlagsAndSendSignalToActive_loop:
+        brcc widgetTreeMatchFlagsAndSendSignalToActive_done
+        mov zl, r18
+        mov zh, r19
+        rcall widgetTreeMatchFlagsAndSendSignalToActive
+        bigcall OBJ_GetNext
+      rjmp widgetTreeMatchFlagsAndSendSignalToActive_loop
+    
+widgetTreeMatchFlagsAndSendSignalToActive_done:
+    pop zh
+  pop zl
+  ret
+; @end
+
+
+#endif
 
 
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