CoreRT UEFI startup code

EfiApplication.cs

public unsafe static class EfiApplication
{
    [System.Runtime.RuntimeExport("EfiMain")]
    unsafe static long EfiMain(IntPtr imageHandle, EFI_SYSTEM_TABLE* systemTable)
    {
        EfiRuntimeHost.Initialize(systemTable);

        Console.Clear();

        Game.Main();
        return 0;
    }
}