Reduce division in JD calc (#17945)

MarlinFirmware · May 11, 2020 · e22e076 · e22e076
1 parent fcd1678
commit e22e076
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/Marlin/src/module/planner.h b/Marlin/src/module/planner.h
@@ -910,8 +910,12 @@ class Planner {
 
       FORCE_INLINE static float limit_value_by_axis_maximum(const float &max_value, xyze_float_t &unit_vec) {
         float limit_value = max_value;
-        LOOP_XYZE(idx) if (unit_vec[idx]) // Avoid divide by zero
-          NOMORE(limit_value, ABS(settings.max_acceleration_mm_per_s2[idx] / unit_vec[idx]));
+        LOOP_XYZE(idx) {
+          if (unit_vec[idx]) {
+            if (limit_value * ABS(unit_vec[idx]) > settings.max_acceleration_mm_per_s2[idx])
+              limit_value = ABS(settings.max_acceleration_mm_per_s2[idx] / unit_vec[idx]);
+          }
+        }
         return limit_value;
       }