implement an operating system loader in csharp

main.cs
public static class Bootloader
{
    static void Main()
    {
        // Load the kernel into memory
        byte[] kernel = ReadKernelFromFile("kernel.bin");

        // Set up the environment for the kernel
        InitializeHardware();
        SetMemoryMap();
        InitializeInterrupts();

        // Jump to the kernel's entry point
        JumpToKernelEntryPoint(kernel);
    }

    static void JumpToKernelEntryPoint(byte[] kernel)
    {
        // Find the kernel entry point
        var entryPoint = GetEntryPoint(kernel);

        // Jump to the entry point
        var asm = new System.Reflection.Assembly();
        asm.GetType("System.Runtime.Loader.AssemblyLoadContext")
           .GetMethod("Default")
           .Invoke(null, null)
           .GetType()
           .GetMethod("LoadFromStream")
           .Invoke(null, new object[] { new MemoryStream(kernel) });

        asm.GetType("System.Runtime.InteropServices.RuntimeInformation")
           .GetMethod("IsOSPlatform")
           .Invoke(null, new object[] { "Windows" });

        asm.GetType("System.Activator")
           .GetMethod("CreateInstance")
           .Invoke(null, new object[] { entryPoint });
    }

    static byte[] ReadKernelFromFile(string fileName)
    {
        // Read the kernel file into memory
        using (var stream = new FileStream(fileName, FileMode.Open))
        {
            var buffer = new byte[stream.Length];
            stream.Read(buffer, 0, buffer.Length);
            return buffer;
        }
    }

    static unsafe void InitializeHardware()
    {
        // Initialize hardware devices
        // This could include initializing the CPU, memory, screen, keyboard, etc.
    }

    static unsafe void SetMemoryMap()
    {
        // Set up a memory map with the kernel and user space segments
        // This could also include setting up virtual memory, paging, etc.
    }

    static unsafe void InitializeInterrupts()
    {
        // Initialize interrupts for handling hardware events
    }

    static IntPtr GetEntryPoint(byte[] kernel)
    {
        // Find the kernel entry point from the binary
        // This could involve parsing the binary format and locating the correct function pointer
    }
}
2230 chars
74 lines