private static void InitCpu()
{
using (var file = File.OpenRead("bios"))
cpu = new Cpu8086(file, 1024 * 1024);
using (var disk = File.OpenRead("TestDisks/Dos6.22.img"))
cpu.AttachDevice(new RawDrive(disk, false, true, 18, 80, 2));
}
private static void Main()
{
InitCpu();
if (SDL.SDL_Init(SDL.SDL_INIT_VIDEO) != 0)
{
throw new InvalidOperationException();
}
var window = SDL.SDL_CreateWindow("CpuEmu", SDL.SDL_WINDOWPOS_CENTERED, SDL.SDL_WINDOWPOS_CENTERED, 64, 64, SDL.SDL_WindowFlags.SDL_WINDOW_SHOWN);
if (window == IntPtr.Zero)
{
throw new InvalidOperationException();
}
var renderer = SDL.SDL_CreateRenderer(window, -1, 0);
if (renderer == IntPtr.Zero)
{
throw new InvalidOperationException();
}
using (var graphics = new GraphicsDevice(window, renderer))
{
cpu.AttachDevice(graphics);
var quit = false;
while (!quit)
{
SDL.SDL_Event evt;
while (SDL.SDL_PollEvent(out evt) != 0)
{
if (evt.type == SDL.SDL_EventType.SDL_QUIT)
{
quit = true;
}
}
const int instructionsToProcess = 100;
for (var i = instructionsToProcess; i >= 0; i--)
{
if (!cpu.ProcessInstruction())
{
break;
}
}
graphics.Draw();
SDL.SDL_RenderPresent(renderer);
}
}
SDL.SDL_DestroyRenderer(renderer);
SDL.SDL_DestroyWindow(window);
SDL.SDL_Quit();
}