Move macros above Stepper::babystep

Marlin/stepper.cpp

@@ -1108,25 +1108,25 @@ void Stepper::report_positions() {
 
 #if ENABLED(BABYSTEPPING)
 
+  #define _ENABLE(axis) enable_## axis()
+  #define _READ_DIR(AXIS) AXIS ##_DIR_READ
+  #define _INVERT_DIR(AXIS) INVERT_## AXIS ##_DIR
+  #define _APPLY_DIR(AXIS, INVERT) AXIS ##_APPLY_DIR(INVERT, true)
+
+  #define BABYSTEP_AXIS(axis, AXIS, INVERT) { \
+      _ENABLE(axis); \
+      uint8_t old_pin = _READ_DIR(AXIS); \
+      _APPLY_DIR(AXIS, _INVERT_DIR(AXIS)^direction^INVERT); \
+      _APPLY_STEP(AXIS)(!_INVERT_STEP_PIN(AXIS), true); \
+      delayMicroseconds(2); \
+      _APPLY_STEP(AXIS)(_INVERT_STEP_PIN(AXIS), true); \
+      _APPLY_DIR(AXIS, old_pin); \
+    }
+
   // MUST ONLY BE CALLED BY AN ISR,
   // No other ISR should ever interrupt this!
   void Stepper::babystep(const uint8_t axis, const bool direction) {
 
-    #define _ENABLE(axis) enable_## axis()
-    #define _READ_DIR(AXIS) AXIS ##_DIR_READ
-    #define _INVERT_DIR(AXIS) INVERT_## AXIS ##_DIR
-    #define _APPLY_DIR(AXIS, INVERT) AXIS ##_APPLY_DIR(INVERT, true)
-
-    #define BABYSTEP_AXIS(axis, AXIS, INVERT) { \
-        _ENABLE(axis); \
-        uint8_t old_pin = _READ_DIR(AXIS); \
-        _APPLY_DIR(AXIS, _INVERT_DIR(AXIS)^direction^INVERT); \
-        _APPLY_STEP(AXIS)(!_INVERT_STEP_PIN(AXIS), true); \
-        delayMicroseconds(2); \
-        _APPLY_STEP(AXIS)(_INVERT_STEP_PIN(AXIS), true); \
-        _APPLY_DIR(AXIS, old_pin); \
-      }
-
     switch (axis) {
 
       case X_AXIS: