diff --git a/MAME.Unity/Assets/Plugins/UMAME/emu/Motion.cs b/MAME.Unity/Assets/Plugins/UMAME/emu/Motion.cs
index e2d7117..308719c 100644
--- a/MAME.Unity/Assets/Plugins/UMAME/emu/Motion.cs
+++ b/MAME.Unity/Assets/Plugins/UMAME/emu/Motion.cs
@@ -1,4 +1,8 @@
-using System;
+using MAME.Core;
+using System;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using UnityEngine.UIElements;
 
 namespace MAME.Core
 {
@@ -154,29 +158,29 @@ namespace MAME.Core
                     else
                     {
 
+                        for (y = startY; y < endY; y++)
+                        {
+                            int stepIndex = y * Video.fullwidth;
+                            for (x = startX; x < endX; x++, target_i++)
+                            {
+                                i = stepIndex + x;
+                                bitmapcolorRect[target_i] = (int)entry_color[curbitmap[i]];
+                            }
+                        }
+
                         //for (y = startY; y < endY; y++)
                         //{
                         //    int stepIndex = y * Video.fullwidth;
+
                         //    for (x = startX; x < endX; x++, target_i++)
                         //    {
                         //        i = stepIndex + x;
                         //        bitmapcolorRect[target_i] = (int)entry_color[curbitmap[i]];
                         //    }
-                        //}
 
-                        for (y = startY; y < endY; y++)
-                        {
-                            int stepIndex = y * Video.fullwidth;
-                            //for (x = startX; x < endX; x++, target_i++)
-                            //{
-                            //    i = stepIndex + x;
-                            //    //bitmapcolorRect[target_i] = (int)entry_color[curbitmap[i]];
-                            //}
-                            int stepStartIdx = stepIndex + startX;
-                            int linelenght = endX - startX;
-                            Array.Copy(Palette.entry_color, stepStartIdx, Video.bitmapcolorRect, 0, linelenght);
-                            target_i += linelenght;
-                        }
+                        //    // 使用Marshal.Copy进行内存拷贝
+                        //    Marshal.Copy(Palette.entry_color_Ptr,, Video.bitmapcolorRect_Ptr, endX - startX);
+                        //}
                     }
                 }
             }