// 0 - OAM Search
// 1 - Pixel Transfer
// 2 - H-Blank
// 3 - V-Blank
public PPU(InterruptController interruptController, LCD display)
{
vram = new byte[0x2000];
oam = new byte[40 * 4];
// 4 bytes of data for each of 40 sprites
output = new byte[256 * 256];
// one color for each pixel
lcd = display;
finished = new DirectBitmap(160, 144);
// Assign Default Values
lcdControl = new DataBus <byte>(0);
lcdStatus = new DataBus <byte>(0);
scrollY = new DataBus <byte>(0);
scrollX = new DataBus <byte>(0);
scanLine = new DataBus <byte>(0);
scanLineCompare = new DataBus <byte>(0);
dmaTransferAddress = new DataBus <byte>(0);
bgPalette = new DataBus <byte>(0);
obj0Palette = new DataBus <byte>(0);
obj1Palette = new DataBus <byte>(0);
windowY = new DataBus <byte>(0);
windowX = new DataBus <byte>(0);
ppuState = 0;
ppuClock = 0;
rendered = false;
}
public Timer(InterruptController interruptController)
{
dividerRegister = new DataBus <byte>((byte)0);
timerCounter = new DataBus <byte>((byte)0);
timerModulo = new DataBus <byte>((byte)0);
timerControl = new DataBus <byte>((byte)0);
ic = interruptController;
}
public CPU(InterruptController interruptController, Memory mem, Registers registers)
{
memory = mem;
ic = interruptController;
reg = registers;
opcode = DefaultFunc().GetEnumerator();
alive = true;
}
private void Setup()
{
LCD lcd = new LCD(160 * 4, 144 * 4);
interruptController = new InterruptController();
timer = new Timer(interruptController);
ppu = new PPU(interruptController, lcd);
registers = new Registers(timer.TimerRegisters, ppu.DisplayRegisters);
stopwatch = new Stopwatch();
lcd.Start();
}
public Mini8086Emulator()
{
var components = new List <BaseComponent>();
_memMapper = new MemoryMapper(512);
_portMapper = new PortMapper();
_cpu = new Cpu8086(_memMapper, _portMapper);
_disassembler = new Disassembler(_cpu, _memMapper);
components.Add(_bios = new Rom(Config.BiosMemAddress));
_memMapper.Register(Config.BiosMemAddress, Config.BiosMemAddress + Config.BiosMemSize - 1, _bios);
components.Add(_pic = new InterruptController(Config.PicBasePort));
_portMapper.Register(Config.PicBasePort, Config.PicBasePort + 0x07, _pic);
components.Add(_timer = new Timer(Config.TimerBasePort, _pic));
_portMapper.Register(Config.TimerBasePort, Config.TimerBasePort + 0x07, _timer);
components.Add(_graphicsAdapter = new GraphicsAdapter(Config.VgaBasePort, Config.VgaMemAddress, _pic, @"..\..\..\ROMs\charrom.bin"));
_portMapper.Register(Config.VgaBasePort, Config.VgaBasePort + 0x07, _graphicsAdapter);
_memMapper.Register(Config.VgaMemAddress, Config.VgaMemAddress + Config.VgaMemSize - 1, _graphicsAdapter);
components.Add(_lcd = new Lcd44780(Config.LcdBasePort));
_portMapper.Register(Config.LcdBasePort, Config.LcdBasePort + 0x07, _lcd);
//components.Add(_ppi = new Ppi(Config.PpiBasePort));
//_portMapper.Register(Config.PpiBasePort, Config.PpiBasePort + 0x07, _ppi);
components.Add(_keybController = new KeybController(Config.KeybControllerBasePort, _pic));
_portMapper.Register(Config.KeybControllerBasePort, Config.KeybControllerBasePort + 0x07, _keybController);
components.Add(_sdController = new SdController(Config.SdControllerBasePort, Config.SdImagePath));
_portMapper.Register(Config.SdControllerBasePort, Config.SdControllerBasePort + 0x07, _sdController);
_memMapper.FinishRegistration();
components.ForEach(_ =>
{
_.EventTimer = _cpu;
_.DoCpuInterrupt = _cpu.DoInterrupt;
});
}