Move XYZ constants closer to the top

Marlin/Marlin_main.cpp

   #define KEEPALIVE_STATE(n) ;
 #endif // HOST_KEEPALIVE_FEATURE
 
+#define DEFINE_PGM_READ_ANY(type, reader)       \
+  static inline type pgm_read_any(const type *p)  \
+  { return pgm_read_##reader##_near(p); }
+
+DEFINE_PGM_READ_ANY(float,       float);
+DEFINE_PGM_READ_ANY(signed char, byte);
+
+#define XYZ_CONSTS_FROM_CONFIG(type, array, CONFIG) \
+  static const PROGMEM type array##_P[XYZ] =        \
+      { X_##CONFIG, Y_##CONFIG, Z_##CONFIG };     \
+  static inline type array(int axis)          \
+  { return pgm_read_any(&array##_P[axis]); }
+
+XYZ_CONSTS_FROM_CONFIG(float, base_min_pos,   MIN_POS);
+XYZ_CONSTS_FROM_CONFIG(float, base_max_pos,   MAX_POS);
+XYZ_CONSTS_FROM_CONFIG(float, base_home_pos,  HOME_POS);
+XYZ_CONSTS_FROM_CONFIG(float, max_length,     MAX_LENGTH);
+XYZ_CONSTS_FROM_CONFIG(float, home_bump_mm,   HOME_BUMP_MM);
+XYZ_CONSTS_FROM_CONFIG(signed char, home_dir, HOME_DIR);
+
 /**
  * ***************************************************************************
  * ******************************** FUNCTIONS ********************************
   return false;
 }
 
-#define DEFINE_PGM_READ_ANY(type, reader)       \
-  static inline type pgm_read_any(const type *p)  \
-  { return pgm_read_##reader##_near(p); }
-
-DEFINE_PGM_READ_ANY(float,       float);
-DEFINE_PGM_READ_ANY(signed char, byte);
-
-#define XYZ_CONSTS_FROM_CONFIG(type, array, CONFIG) \
-  static const PROGMEM type array##_P[XYZ] =        \
-      { X_##CONFIG, Y_##CONFIG, Z_##CONFIG };     \
-  static inline type array(int axis)          \
-  { return pgm_read_any(&array##_P[axis]); }
-
-XYZ_CONSTS_FROM_CONFIG(float, base_min_pos,   MIN_POS);
-XYZ_CONSTS_FROM_CONFIG(float, base_max_pos,   MAX_POS);
-XYZ_CONSTS_FROM_CONFIG(float, base_home_pos,  HOME_POS);
-XYZ_CONSTS_FROM_CONFIG(float, max_length,     MAX_LENGTH);
-XYZ_CONSTS_FROM_CONFIG(float, home_bump_mm,   HOME_BUMP_MM);
-XYZ_CONSTS_FROM_CONFIG(signed char, home_dir, HOME_DIR);
-
 #if ENABLED(DUAL_X_CARRIAGE) || ENABLED(DUAL_NOZZLE_DUPLICATION_MODE)
   bool extruder_duplication_enabled = false; // Used in Dual X mode 2
 #endif