ppuClear call from zig to c# simulator; not yet implemented in simulator; also breakpoints are not working in vs-code

simulator/Program.cs

@@ -13,7 +13,6 @@ internal static class Program
         return SdRoot / $"slot{slotIdx}" / normalizedPath;
     }
 
-    private static readonly Nova64.DisplayFlushDelegate DisplayFlush = (buffer, width, height) => { };
     private static readonly Nova64.AudioOutputDelegate AudioOutput = (samples, count) => { };
     private static readonly Nova64.SdReadFileDelegate SdReadFile = (slotIdx, filePath, destinationBuffer, destinationLength) =>
     {
@@ -47,6 +46,7 @@ internal static class Program
             return -1;
         }
     };
+
     private static readonly Nova64.SdGetFileSizeDelegate SdGetFileSize = (slotIdx, filePath) =>
     {
         var path = GetSlotFilePath(slotIdx, filePath);
@@ -69,6 +69,7 @@ internal static class Program
             return -1;
         }
     };
+
     private static readonly Nova64.CartridgeStatusDelegate CartridgeStatus = (slotIdx, isInserted) => { };
     private static readonly Nova64.LogMessageDelegate LogMessage = (message) =>
     {
@@ -76,6 +77,11 @@ internal static class Program
         Console.Out.Flush();
     };
 
+    private static readonly Nova64.PpuFillRectDelegate FillRect = (dst, dstStride, x, y, w, h, color) =>
+    {
+        
+    };
+
     private static GCHandle? _ioHandle;
     private static GCHandle? _ppuHandle;
     private static Thread? _coreThread;
@@ -129,7 +135,7 @@ internal static class Program
 
             var ppuInterface = new Nova64.Nova64PpuInterface
             {
-
+                fill_rect = Marshal.GetFunctionPointerForDelegate(FillRect),
             };
 
             _ppuHandle = GCHandle.Alloc(ppuInterface, GCHandleType.Pinned);