Minor changes

src/main.c

@@ -23,7 +23,7 @@ int main(int argc, char *argv[])
   while (!WindowShouldClose()){
     VCPUFetch();
     VCPUDecode();
-    VCPUExecute();
+    VCPUExecute();  
     ScreenUpdate();
   }
   

src/screen.c

@@ -15,7 +15,7 @@ void ScreenInit(int width, int height){
 
   SetTraceLogLevel(LOG_ERROR); // Disable anoying raylib logs
   InitWindow(width, height, "Chip-8 Emulator");
-  SetTargetFPS(200); // Set game to run at 60 frames-per-second
+  SetTargetFPS(30); // Set game to run at 60 frames-per-second
 }
 
 void ScreenClear() {

src/screen.h

@@ -16,6 +16,7 @@ typedef struct SCREEN_DATA {
 void ScreenInit(int width, int height);
 void ScreenClear();
 char ScreenPixelApply(int x, int y, unsigned char state);
+void ScreenPixelFlip(int x, int y);
 void ScreenWH(int *width, int *height);
 void ScreenUpdate();
 void ScreenClose();