diff --git a/keycodes.h b/keycodes.h
index cfbf99b..fe4881b 100644
--- a/keycodes.h
+++ b/keycodes.h
@@ -332,7 +332,8 @@ const unsigned short usb2ps2[] = {
   0x01,  // 42: F9
   0x09,  // 43: F10
   0x78,  // 44: F11
-  0x07,  // 45: F12
+  OSD_LOC,  // 45: F12 (OSD)
+  // 0x07,  // 45: F12
   EXT | 0x7c, // 46: Print Screen
   NUM_LOCK_TOGGLE,  // 47: Scroll Lock
   0x77,  // 48: Pause (special key handled inside user_io)
diff --git a/main.c b/main.c
index e2269fd..7113241 100644
--- a/main.c
+++ b/main.c
@@ -197,6 +197,11 @@ int main(void)
 	HandleFpga();
 	HandleUI();
       }
+
+      // 8 bit cores can also have a ui
+      if(user_io_core_type() == CORE_TYPE_8BIT) {
+	HandleUI();
+      }
     }
     return 0;
 }
diff --git a/menu.c b/menu.c
index 790b5a4..1cbbdb7 100644
--- a/menu.c
+++ b/menu.c
@@ -295,15 +295,43 @@ void HandleUI(void)
         {
 	  if(user_io_core_type() == CORE_TYPE_MINIMIG)
 	    menustate = MENU_MAIN1;
-	  else
+	  else if(user_io_core_type() == CORE_TYPE_MIST)
 	    menustate = MENU_MIST_MAIN1;
-
-            menusub = 0;
+	  else
+	    menustate = MENU_DUMMY_MAIN1;
+	  
+	    menusub = 0;
             OsdClear();
             OsdEnable(DISABLE_KEYBOARD);
         }
         break;
 
+        /******************************************************************/
+        /* dummy main menu                                                */
+        /******************************************************************/
+
+    case MENU_DUMMY_MAIN1 :
+	menumask=0;
+	OsdSetTitle("Menu", 0);
+
+	OsdWrite(0, "", 0,0);
+	OsdWrite(1, " Dummy menu test", 0,0);
+	OsdWrite(2, "", 0,0);
+	OsdWrite(3, "", 0,0);
+	OsdWrite(4, "", 0,0);
+	OsdWrite(5, "", 0,0);
+	OsdWrite(6, "", 0,0);
+	OsdWrite(7, "", 0,0);
+        menustate = MENU_DUMMY_MAIN2;
+	parentstate=MENU_DUMMY_MAIN1;
+        break;
+
+    case MENU_DUMMY_MAIN2 :
+        // menu key closes menu
+        if (menu)
+	  menustate = MENU_NONE1;
+        break;
+
         /******************************************************************/
         /* mist main menu                                                 */
         /******************************************************************/
diff --git a/menu.h b/menu.h
index 99090a6..d184104 100644
--- a/menu.h
+++ b/menu.h
@@ -84,6 +84,10 @@ enum MENU
     MENU_MIST_VIDEO2,
     MENU_MIST_VIDEO_ADJUST1,
     MENU_MIST_VIDEO_ADJUST2,
+
+    // Dummy menu entries
+    MENU_DUMMY_MAIN1,
+    MENU_DUMMY_MAIN2,
 };
 
 // UI strings, used by boot messages
diff --git a/osd.c b/osd.c
index 1395807..fe25d4d 100644
--- a/osd.c
+++ b/osd.c
@@ -660,8 +660,9 @@ unsigned char OsdGetCtrl(void)
       DisableOsd();
     }
 
-    // mist/atari core uses local queue
-    if(user_io_core_type() == CORE_TYPE_MIST)
+    // mist/atari and 8bit cores use local queue
+    if((user_io_core_type() == CORE_TYPE_MIST) ||
+       (user_io_core_type() == CORE_TYPE_8BIT))
       c1 = OsdKeyGet();
 
     // add front menu button