trying to help kinetis by reducing RAM usage back to where it was

firmware/config/boards/kinetis/config/gen_config.sh

@@ -34,6 +34,6 @@ java \
  -enumInputFile controllers/algo/rusefi_enums.h \
  -enumInputFile controllers/algo/rusefi_hw_enums.h \
  -board kinetis \
- -prepend config/boards/kinetis/config/tunerstudio/generated/kinetis_prefix.txt
+ -prepend config/boards/kinetis/config/rusefi_config_kinetis.txt
 
 [ $? -eq 0 ] || { echo "ERROR generating TunerStudio config for kinetis"; exit 1; }

firmware/integration/rusefi_config.txt

@@ -1937,3 +1937,4 @@ end_struct
 #define show_Frankenso_presets true
 #define show_microRusEFI_presets true
 #define show_Proteus_presets true
+

java_tools/configuration_definition/src/com/rusefi/test/VariableRegistryTest.java

@@ -37,4 +37,22 @@ public class VariableRegistryTest {
         assertEquals("ab'r'", registry.applyVariables("ab@@SD_r@@"));
         assertEquals("abr", registry.applyVariables("ab@@SD_r" + CHAR_SUFFIX + "@@"));
     }
+
+    @Test
+    public void testPrepend() {
+        VariableRegistry registry = new VariableRegistry();
+        registry.register("key_string", "value_1");
+        assertEquals("value_1", registry.get("key_string"));
+
+        registry.register("key_string", "value_2");
+        assertEquals("value_1", registry.get("key_string"));
+
+        registry.register("key_int", 1);
+        assertEquals("1", registry.get("key_int"));
+        assertEquals("1", registry.get("key_int" + _HEX_SUFFIX));
+
+        registry.register("key_int", 2);
+        assertEquals("1", registry.get("key_int"));
+        assertEquals("1", registry.get("key_int" + _HEX_SUFFIX));
+    }
 }