diff --git a/LifeOnMars.xcodeproj/project.pbxproj b/LifeOnMars.xcodeproj/project.pbxproj
index 4b56148..4de8f35 100644
--- a/LifeOnMars.xcodeproj/project.pbxproj
+++ b/LifeOnMars.xcodeproj/project.pbxproj
@@ -302,7 +302,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 14.6;
-				MARKETING_VERSION = 0.241;
+				MARKETING_VERSION = 0.25;
 				PRODUCT_BUNDLE_IDENTIFIER = com.fatherdougalmaguire.LifeOnMars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -333,7 +333,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 14.6;
-				MARKETING_VERSION = 0.241;
+				MARKETING_VERSION = 0.25;
 				PRODUCT_BUNDLE_IDENTIFIER = com.fatherdougalmaguire.LifeOnMars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;
diff --git a/LifeOnMars.xcodeproj/xcuserdata/tony.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/LifeOnMars.xcodeproj/xcuserdata/tony.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
index 2b23c9e..ed016d9 100644
--- a/LifeOnMars.xcodeproj/xcuserdata/tony.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
+++ b/LifeOnMars.xcodeproj/xcuserdata/tony.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -14,8 +14,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "322"
-            endingLineNumber = "322"
+            startingLineNumber = "341"
+            endingLineNumber = "341"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -30,8 +30,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "945"
-            endingLineNumber = "945"
+            startingLineNumber = "964"
+            endingLineNumber = "964"
             landmarkName = "CoreStepExecute()"
             landmarkType = "7">
          </BreakpointContent>
@@ -46,8 +46,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "942"
-            endingLineNumber = "942"
+            startingLineNumber = "961"
+            endingLineNumber = "961"
             landmarkName = "CoreStepExecute()"
             landmarkType = "7">
          </BreakpointContent>
@@ -62,8 +62,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "402"
-            endingLineNumber = "402"
+            startingLineNumber = "421"
+            endingLineNumber = "421"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -78,8 +78,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "403"
-            endingLineNumber = "403"
+            startingLineNumber = "422"
+            endingLineNumber = "422"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -94,8 +94,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "363"
-            endingLineNumber = "363"
+            startingLineNumber = "382"
+            endingLineNumber = "382"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -126,8 +126,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "212"
-            endingLineNumber = "212"
+            startingLineNumber = "231"
+            endingLineNumber = "231"
             landmarkName = "FormatCoreOutput(_:)"
             landmarkType = "7">
          </BreakpointContent>
@@ -142,8 +142,8 @@
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "533"
-            endingLineNumber = "533"
+            startingLineNumber = "552"
+            endingLineNumber = "552"
             landmarkName = "CoreStepExecute()"
             landmarkType = "7">
          </BreakpointContent>
@@ -151,47 +151,31 @@
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            uuid = "0CD35390-9300-42C7-8651-82B714591A9B"
+            uuid = "C56C2280-CDD3-4608-B7F9-A79559479BBD"
             shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "137"
-            endingLineNumber = "137"
-            landmarkName = "init()"
+            startingLineNumber = "370"
+            endingLineNumber = "370"
+            landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
       </BreakpointProxy>
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            uuid = "944CBB1B-ADE2-44F0-8E28-76A5CEFFD01E"
-            shouldBeEnabled = "Yes"
-            ignoreCount = "0"
-            continueAfterRunningActions = "No"
-            filePath = "LifeOnMars/buffer.metal"
-            startingColumnNumber = "9223372036854775807"
-            endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "18"
-            endingLineNumber = "18"
-            landmarkName = "DrawCore(float2 position, half4 color, device const float *CoreBuffer1, int CoreSize1)"
-            landmarkType = "9">
-         </BreakpointContent>
-      </BreakpointProxy>
-      <BreakpointProxy
-         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
-         <BreakpointContent
-            uuid = "C56C2280-CDD3-4608-B7F9-A79559479BBD"
+            uuid = "2943799C-7CA3-49D2-BF11-3EAA96AB7888"
             shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "351"
-            endingLineNumber = "351"
+            startingLineNumber = "399"
+            endingLineNumber = "399"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -199,15 +183,15 @@
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            uuid = "2943799C-7CA3-49D2-BF11-3EAA96AB7888"
+            uuid = "C5BFB520-02A5-4697-9DCC-DB8EC70D78DA"
             shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "380"
-            endingLineNumber = "380"
+            startingLineNumber = "362"
+            endingLineNumber = "362"
             landmarkName = "LoadCore()"
             landmarkType = "7">
          </BreakpointContent>
@@ -215,32 +199,32 @@
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            uuid = "C5BFB520-02A5-4697-9DCC-DB8EC70D78DA"
+            uuid = "2D535B60-7EC2-443E-B6D6-E7C0B690F5C9"
             shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "343"
-            endingLineNumber = "343"
-            landmarkName = "LoadCore()"
+            startingLineNumber = "986"
+            endingLineNumber = "986"
+            landmarkName = "CoreExecute()"
             landmarkType = "7">
          </BreakpointContent>
       </BreakpointProxy>
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            uuid = "2D535B60-7EC2-443E-B6D6-E7C0B690F5C9"
+            uuid = "551B925A-C7CF-469A-ABB1-34A7DF42693D"
             shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "LifeOnMars/EmulatorCore.swift"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
-            startingLineNumber = "967"
-            endingLineNumber = "967"
-            landmarkName = "CoreExecute()"
+            startingLineNumber = "139"
+            endingLineNumber = "139"
+            landmarkName = "init()"
             landmarkType = "7">
          </BreakpointContent>
       </BreakpointProxy>
diff --git a/LifeOnMars/ContentView.swift b/LifeOnMars/ContentView.swift
index b5b08da..12a2cd6 100644
--- a/LifeOnMars/ContentView.swift
+++ b/LifeOnMars/ContentView.swift
@@ -9,19 +9,20 @@
 import SwiftUI
 
 struct CoreDisplayView: View {
-    
+
     @EnvironmentObject var ThisEmulatorCore : EmulatorCore
-    
+
     var body: some View {
-        
+
         VStack
         {  TimelineView(.animation)
             { context in
                 Rectangle()
-                    .fill(.red)
-                    .frame(width: 100.0, height: 80.0)
-                    .colorEffect(ShaderLibrary.DrawCore(.floatArray(ThisEmulatorCore.CoreBuffer)))
-                    .scaleEffect(x: 7.0, y:7.0)
+                    .frame(width: CGFloat(ThisEmulatorCore.CoreSizeInCols*(ThisEmulatorCore.CoreCellSize+1)), height: CGFloat(ThisEmulatorCore.CoreSizeInRows*(ThisEmulatorCore.CoreCellSize+1)))
+                    .colorEffect(ShaderLibrary.DrawCore1(.floatArray(ThisEmulatorCore.CoreBuffer),.float(Float(ThisEmulatorCore.CoreSizeInCols)),.float(Float(ThisEmulatorCore.CoreSizeInRows)),.float(Float(ThisEmulatorCore.CoreCellSize))))
+//                    .frame(width: 100.0, height: 80.0)
+//                    .colorEffect(ShaderLibrary.DrawCore(.floatArray(ThisEmulatorCore.CoreBuffer)))
+//                    .scaleEffect(x: 7.0, y:7.0)
                     .onChange(of: context.date)
                 {
                     ThisEmulatorCore.CoreExecute()
@@ -31,6 +32,31 @@ struct CoreDisplayView: View {
     } //End body
 }  // End CoreDisplayView
 
+struct oldthing: View {
+    
+    @EnvironmentObject var ThisEmulatorCore : EmulatorCore
+    
+    var body: some View {
+        
+        HStack {
+                Grid(horizontalSpacing: 1.0, verticalSpacing: 1.0) {
+                    ForEach(0..<10) { MyIndexRow in
+                        GridRow {
+                            ForEach(0..<10) { MyIndexCol in
+                                Rectangle().fill(ThisEmulatorCore.Core[(MyIndexRow*10)+MyIndexCol].InstructionColour)
+                            } // End ForEach
+                        } // End GridRow
+                        .frame(width: 10.0, height: 10.0)
+                    } // End ForEach
+                } // End Grid
+            Rectangle()
+                .frame(width: CGFloat(ThisEmulatorCore.CoreSizeInCols*(ThisEmulatorCore.CoreCellSize+1)), height: CGFloat(ThisEmulatorCore.CoreSizeInRows*(ThisEmulatorCore.CoreCellSize+1)))
+                .colorEffect(ShaderLibrary.DrawCore1(.floatArray(ThisEmulatorCore.CoreBuffer),.float(Float(ThisEmulatorCore.CoreSizeInCols)),.float(Float(ThisEmulatorCore.CoreSizeInRows)),.float(Float(ThisEmulatorCore.CoreCellSize))))
+        } // End VStack
+        //.background(.blue)
+    } //End body
+}  // End CoreDisplayView
+
 #Preview {
     CoreDisplayView()
 }  // End Preview
@@ -129,21 +155,23 @@ struct ContentView: View {
     @StateObject var ThisEmulatorCore = EmulatorCore()
     
     var body: some View {
-//        ZStack
-//        {
-//            Color.white.ignoresSafeArea()
-            CoreDisplayView().environmentObject(ThisEmulatorCore).frame(width:1000,height:560,alignment: .top)
-//            Divider()
-//        HStack
-//            {
-            CoreMemoryView().environmentObject(ThisEmulatorCore).frame(width:1000,height:120)
-            //      Divider()
-            WarriorDisplayView().environmentObject(ThisEmulatorCore).frame(width:1000,height:80)
- //                Divider()
- //           } // End HStack
-//            Spacer()
-            WarriorControlView().environmentObject(ThisEmulatorCore).frame(width:1000,height:50,alignment: .bottom)
-  //      } // End ZStack
+        
+        //oldthing().environmentObject(ThisEmulatorCore).frame(width:1000,height:560,alignment: .top)
+        //        ZStack
+        //        {
+        //            Color.white.ignoresSafeArea()
+        CoreDisplayView().environmentObject(ThisEmulatorCore).frame(width:1000,height:560,alignment: .top)
+        //            Divider()
+        //        HStack
+        //            {
+        CoreMemoryView().environmentObject(ThisEmulatorCore).frame(width:1000,height:120)
+        //      Divider()
+        WarriorDisplayView().environmentObject(ThisEmulatorCore).frame(width:1000,height:80)
+        //                Divider()
+        //           } // End HStack
+        //            Spacer()
+        WarriorControlView().environmentObject(ThisEmulatorCore).frame(width:1000,height:50,alignment: .bottom)
+        //      } // End ZStack
     } // End body
 }  // End ContentView
 
diff --git a/LifeOnMars/EmulatorCore.swift b/LifeOnMars/EmulatorCore.swift
index e408b3c..c7134ca 100644
--- a/LifeOnMars/EmulatorCore.swift
+++ b/LifeOnMars/EmulatorCore.swift
@@ -93,7 +93,7 @@ class EmulatorCore : ObservableObject {
     var CoreSize: Int = 8000
     var CoreSizeInRows: Int
     var CoreSizeInCols: Int
-    var CoreCellSize: Double
+    var CoreCellSize: Int
     var CoreDrawSize : Int
     var CoreUpdateFreq : Double = 0.1
     
@@ -117,22 +117,41 @@ class EmulatorCore : ObservableObject {
         else if self.CoreSize <= 1000
         {
             self.CoreSizeInRows = 20
-            self.CoreSizeInCols = 50
-            self.CoreCellSize = 10
+           self.CoreSizeInCols = 50
+//            self.CoreSizeInRows = 20
+//            self.CoreSizeInCols = 20
+            self.CoreCellSize = 15
             CoreDrawSize = self.CoreSizeInRows*self.CoreSizeInCols
         }
         else
         {
-            self.CoreSizeInRows = 70
-            self.CoreSizeInCols = 120
-            self.CoreCellSize = 10
+            self.CoreSizeInRows = 64
+            self.CoreSizeInCols = 125
+            self.CoreCellSize = 7
             CoreDrawSize = self.CoreSizeInRows*self.CoreSizeInCols
         }
         self.Core = Array<RedCodeInstruction>(repeating: RedCodeInstruction(),count:CoreSize)
         self.CoreBuffer = Array<Float>(repeating: 0.0,count:CoreSize)
         for MyIndex in 0..<CoreSize {
             self.Core[MyIndex].InstructionColour = .black
+            self.CoreBuffer[MyIndex] = 0
         }
+//        self.Core[1].InstructionColour = .green
+//        self.CoreBuffer[1] = 2
+//        self.Core[2].InstructionColour = .green
+//        self.CoreBuffer[2] = 2
+//        self.Core[3].InstructionColour = .green
+//        self.CoreBuffer[3] = 2
+//        self.Core[4].InstructionColour = .green
+//        self.CoreBuffer[4] = 2
+//        self.Core[30].InstructionColour = .red
+//        self.CoreBuffer[30] = 1
+//        self.Core[31].InstructionColour = .red
+//        self.CoreBuffer[31] = 1
+//        self.Core[32].InstructionColour = .red
+//        self.CoreBuffer[32] = 1
+//        self.Core[33].InstructionColour = .red
+//        self.CoreBuffer[33] = 1
         
         self.CoreUpdateFreq = 0.1
     }
diff --git a/LifeOnMars/buffer.metal b/LifeOnMars/buffer.metal
index a631fdf..265ac0c 100644
--- a/LifeOnMars/buffer.metal
+++ b/LifeOnMars/buffer.metal
@@ -8,26 +8,151 @@
 #include <metal_stdlib>
 using namespace metal;
 
+[[ stitchable ]] half4 DrawCore1(float2 position, half4 color, device const float *CoreBuffer1, int CoreSize1, float GridCol, float GridRow, float GridSize)
+{
+    half4 PixelColour;
+    int CoreValue;
+ //   int ColourMatch = 0;
+    //int MyGridRow = int(GridRow);
+    int MyGridCol = int(GridCol);
+    int MyGridSize = int(GridSize);
+    
+  //  if (int(position.x) % 11 == 0 || int(position.y) % 11 == 0 )
+    if (int(position.x) % (MyGridSize+1) == 0 || int(position.y) % (MyGridSize+1) == 0 )
+    {
+        PixelColour = half4(255,255,255,1);
+ //       ColourMatch = 1;
+    }
+    else
+    {
+      //  CoreValue = int(CoreBuffer1[(int(position.y)/11*10) + int(position.x)/11]);
+        CoreValue = int(CoreBuffer1[(int(position.y)/(MyGridSize+1)*MyGridCol) + int(position.x)/(MyGridSize+1)]);
+        switch (CoreValue)
+        {
+           case 0 : PixelColour = half4(0,0,0,1);break;
+           case 1 : PixelColour = half4(255,0,0,1);break;
+           case 2 : PixelColour = half4(0,255,0,1);
+        }
+ //       ColourMatch = 1;
+    }
+  
+//    //    if (int(position.x) >= 1 && int(position.y) >= 1 && int(position.x) <= 10 && int(position.y) <= 10)
+//    //        {
+//    //        thingy = half4(0,255,0,1);
+//    //        ColourMatch = 1;
+//    //    } // Corebuffer[0]
+//    
+//    if (int(position.x) >= 12 && int(position.y) >= 1 && int(position.x) <= 21 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,255,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[1]
+//    
+//    if (int(position.x) >= 23 && int(position.y) >= 1 && int(position.x) <= 32 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,255,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[2]
+//    
+//    if (int(position.x) >= 34 && int(position.y) >= 1 && int(position.x) <= 43 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,255,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[3]
+//    
+//    if (int(position.x) >= 45 && int(position.y) >= 1 && int(position.x) <= 54 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,255,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[4]
+//    
+//    if (int(position.x) >= 56 && int(position.y) >= 1 && int(position.x) <= 65 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,255,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[5]
+//    
+//    if (int(position.x) >= 67 && int(position.y) >= 1 && int(position.x) <= 76 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,0,255,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[6]
+//    
+//    if (int(position.x) >= 78 && int(position.y) >= 1 && int(position.x) <= 87 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,0,255,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[7]
+//    
+//    if (int(position.x) >= 89 && int(position.y) >= 1 && int(position.x) <= 98 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,0,255,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[8]
+//    
+//    if (int(position.x) >= 100  && int(position.y) >= 1 && int(position.x) <= 109 && int(position.y) <= 10)
+//    {
+//        thingy = half4(0,0,255,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[9]
+//
+//    if (int(position.x) >= 1 && int(position.y) >= 34 && int(position.x) <= 10 && int(position.y) <= 43)
+//    {
+//        thingy = half4(255,0,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[30]
+//    
+//    if (int(position.x) >= 12 && int(position.y) >= 34 && int(position.x) <= 21 && int(position.y) <= 43)
+//    {
+//        thingy = half4(255,0,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[31]
+//    
+//    if (int(position.x) >= 23 && int(position.y) >= 34 && int(position.x) <= 32 && int(position.y) <= 43)
+//    {
+//        thingy = half4(255,0,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[32]
+//    
+//    if (int(position.x) >= 34 && int(position.y) >= 34 && int(position.x) <= 43 && int(position.y) <= 43)
+//    {
+//        thingy = half4(255,0,0,1);
+//        ColourMatch = 1;
+//    } // Corebuffer[33]
+//    
+//    //        if (int(position.x) >= 45 && int(position.y) >= 1 && int(position.x) <= 54 && int(position.y) <= 10)
+//    //            {
+//    //            thingy = half4(255,0,0,1);
+//    //            ColourMatch = 1;
+//    //        } // Corebuffer[34]
+    
+//    if (ColourMatch == 0)
+//        
+//    {
+//        PixelColour = half4(0,0,0,1); }
+    
+    return PixelColour;
+}
+
 [[ stitchable ]] half4 DrawCore(float2 position, half4 color, device const float *CoreBuffer1, int CoreSize1)
 {
     half4 thingy;
     int CoreValue;
-        
+    
     CoreValue = int(CoreBuffer1[int(position.y) * 100 + int(position.x)]);
-
+    
     switch (CoreValue) {
-      case 0: // empty
-        thingy = half4(0,0,0,1);
-        break;
-      case 1: // red
+        case 0: // empty
+            thingy = half4(0,0,0,1);
+            break;
+        case 1: // red
             thingy = half4(255, 0, 0,1);
-        break;
-      case 2: //green
-              thingy = half4(0,255,0,1);
-          break;
+            break;
+        case 2: //green
+            thingy = half4(0,255,0,1);
+            break;
     }
     
     return thingy;
 }
 
-