public void StartPpuDebug(NESManager newManager)
{
manager = newManager;
emulator = manager.Emulator;
ppu = emulator.Ppu;
paletteTextures = new Texture2D[paletteImages.Length];
paletteBuffers = new Color32[paletteImages.Length][];
for (int i = 0; i < paletteTextures.Length; i++)
{
paletteTextures[i] = new Texture2D(4, 1, TextureFormat.RGBA32, false);
paletteTextures[i].filterMode = FilterMode.Point;
paletteImages[i].texture = paletteTextures[i];
paletteBuffers[i] = new Color32[paletteTextures[i].width * paletteTextures[i].height];
}
patternTextures = new Texture2D[patternImages.Length];
patternBuffers = new Color32[patternImages.Length][];
for (int i = 0; i < patternTextures.Length; i++)
{
patternTextures[i] = new Texture2D(16 * 8, 16 * 8, TextureFormat.RGBA32, false);
paletteTextures[i].filterMode = FilterMode.Point;
patternImages[i].texture = patternTextures[i];
patternBuffers[i] = new Color32[patternTextures[i].width * patternTextures[i].height];
}
patternBuffer = new byte[patternTextures[0].width, patternTextures[0].height];
paletteBuffer = new byte[4];
oamBuilder = new StringBuilder();
}
public void StartLog(Emulator newEmulator)
{
emulator = newEmulator;
cpu = emulator.Cpu;
ppu = emulator.Ppu;
if (enableLog)
{
// Add callback
emulator.onBeforeStep -= QueueLog;
emulator.onBeforeStep += QueueLog;
// Clear queue
while (queue.TryDequeue(out _))
{
;
}
// Clear log
if (File.Exists(path))
{
File.Delete(path);
}
// Start Thread
logThread = new Thread(() => { MessageLoop(); });
logThread.Start();
}
}
public FormRwDecoder(Ppu ppu)
{
InitializeComponent();
this.ppu = ppu;
ppu.AddListener(PpuListener);
}
public FormPixelClock(Ppu ppu)
{
InitializeComponent();
this.ppu = ppu;
ppu.AddListener(PpuListener);
}
public LoggingNes()
{
PpuRam = new PpuMemoryMap();
Ppu = new Ppu(PpuRam, Screen);
Ram = new MemoryMap(Ppu);
Cpu = new LoggingCpu(Ram, programCounter: 0xC000, stackPointer: InitialStackPointer);
CpuCycleDurationMilliseconds = 0f;
}
public CpuBus(byte[] programRom, Ppu ppu, Joypad joypad, DMA dma, Func <int> cpuMasterClockCyclesAction)
{
_programRom = programRom;
_ppu = ppu;
_joypad = joypad;
_dma = dma;
_cpuMasterClockCycles = cpuMasterClockCyclesAction;
}
public FormClk(Ppu ppu)
{
InitializeComponent();
this.ppu = ppu;
textBoxCLKPad.Text = ppu.Pads.CLK.ToString();
textBoxToggleCounter.Text = ppu.ToggleCounter.ToString();
ppu.AddListener(PpuListener);
}
public FormReset(Ppu ppu)
{
InitializeComponent();
this.ppu = ppu;
textBoxXRES.Text = ppu.Pads.nRES.ToString();
textBoxRESCL.Text = ppu.RESCL.ToString();
textBoxResetFF.Text = ppu.ResetFF.ToString();
ppu.AddListener(PpuListener);
}
public NesEngine(TvFormat tvFormat, PaletteFormat plFormat)
{
AutoSaveSram = true;
Debug.WriteLine(this, "Initializeing the nes emulation engine...", DebugStatus.None);
TvFormat = tvFormat;
//Initialize Engine
Memory = new Memory.Memory(this);
Cpu = new Cpu(Memory, tvFormat, this);
Cpu.PauseToggle += CpuPauseToggle;
Ppu = new Ppu(tvFormat, plFormat, this);
Debug.WriteLine(this, "Nes initialized ok.", DebugStatus.Cool);
}
private Xy GetXy(int offset, int desl, int multi = 1)
{
offset -= 0x8010;
var ppu = new Ppu(TvFormat.Ntsc, new PaletteFormat(), null);
var w = 128 * multi;
return(new Xy
{
X = ppu.GetX(offset, desl, multi),
Y = ppu.GetY(offset, w, multi)
});
}
public Computer(NesFile file, TextLogger logger)
{
if (file.Version != 0)
{
throw new System.Exception(string.Format("Version {0} not implemented", file.Version));
}
if(file.BatteryRAM)
{
throw new System.Exception("Battery backed RAM not implemented");
}
if (file.HasTrainer)
{
throw new System.Exception("Trainer not implemented");
}
switch (file.Mapper)
{
case 0x00: // NROM
//CPU $6000 -$7FFF: Family Basic only: PRG RAM, mirrored as necessary to fill entire 8 KiB window, write protectable with an external switch
//CPU $8000 -$BFFF: First 16 KB of ROM.
//CPU $C000 -$FFFF: Last 16 KB of ROM(NROM - 256) or mirror of $8000 -$BFFF(NROM - 128).
break;
default:
throw new System.Exception(string.Format("Mapper {0} not implemented", file.Mapper));
}
if (file.VSUnisystem)
{
throw new System.Exception("VSUnisystem not implemented");
}
if (file.PlayChoice10)
{
throw new System.Exception("PlayChoice10 not implemented");
}
PpuMap = new PpuMap(new Ram(0x2000), new Rom(file.chr_rom), file.VRAMLayout);
Ppu = new Ppu(PpuMap);
Ppu.Logger = logger;
CpuMap = new CpuMap(new Ram(0x0800), new Rom(file.prg_rom), Ppu);
Cpu = new Cpu(CpuMap);
Cpu.Logger = logger;
}
public Computer(NesFile file, TextLogger logger)
{
if (file.Version != 0)
{
throw new System.Exception(string.Format("Version {0} not implemented", file.Version));
}
if (file.BatteryRAM)
{
throw new System.Exception("Battery backed RAM not implemented");
}
if (file.HasTrainer)
{
throw new System.Exception("Trainer not implemented");
}
switch (file.Mapper)
{
case 0x00: // NROM
//CPU $6000 -$7FFF: Family Basic only: PRG RAM, mirrored as necessary to fill entire 8 KiB window, write protectable with an external switch
//CPU $8000 -$BFFF: First 16 KB of ROM.
//CPU $C000 -$FFFF: Last 16 KB of ROM(NROM - 256) or mirror of $8000 -$BFFF(NROM - 128).
break;
default:
throw new System.Exception(string.Format("Mapper {0} not implemented", file.Mapper));
}
if (file.VSUnisystem)
{
throw new System.Exception("VSUnisystem not implemented");
}
if (file.PlayChoice10)
{
throw new System.Exception("PlayChoice10 not implemented");
}
PpuMap = new PpuMap(new Ram(0x2000), new Rom(file.chr_rom), file.VRAMLayout);
Ppu = new Ppu(PpuMap);
Ppu.Logger = logger;
CpuMap = new CpuMap(new Ram(0x0800), new Rom(file.prg_rom), Ppu);
Cpu = new Cpu(CpuMap);
Cpu.Logger = logger;
}
public void Reset(bool inBios = false, Cartridge cartridge = null)
{
CyclesCount = 0;
Cpu.Reset(inBios, cartridge);
Mmu.Reset();
Ppu.Reset();
Apu.Reset();
Input.Reset();
Timer.Reset();
Dma.Reset();
LinkCable.Reset();
IsAlive = true;
frameQueue = new FrameQueue();
}
public Emulator(Cartridge cartridge)
{
LoadMapper(cartridge);
if (Mapper == null)
{
return;
}
Cpu = new Cpu(this);
Ppu = new Ppu(this);
Apu = new Apu(this);
ControllerOne = new Controller();
ControllerTwo = new Controller();
IsValid = true;
}
public void StartOutput(NESManager newManager)
{
manager = newManager;
ppu = manager.Emulator.Ppu;
screenTexture = new Texture2D(Emulator.ScreenWidth, Emulator.ScreenHeight, TextureFormat.RGBA32, false)
{
filterMode = FilterMode.Point
};
screenImage.texture = screenTexture;
bufferLength = screenTexture.width * screenTexture.height;
screenBuffer = new Color32[bufferLength];
// RGBA32 texture format data layout exactly matches Color32 struct
nativeScreenTexture = screenTexture.GetRawTextureData <Color32>();
}
public void RunFrame()
{
while (ElapsedFrameCycles < CyclesPerFrame)
{
while (CpuCyclesForDot < CyclesPerDot)
{
CpuCyclesForDot += Cpu.Step();
}
MemoryMap.FlushMmio();
Ppu.Tick();
MemoryMap.UpdateMmio();
CpuCyclesForDot -= CyclesPerDot;
ElapsedFrameCycles += CyclesPerDot;
}
ElapsedFrameCycles -= CyclesPerFrame;
}
public void TestPpuCoord()
{
var ppu = new Ppu(TvFormat.Ntsc, new PaletteFormat(), null);
//Multiplicador 1
Assert.AreEqual(new Xy(0, 0), GetXy(0x8010, 0));
Assert.AreEqual(new Xy(1, 0), GetXy(0x8010, 1));
Assert.AreEqual(new Xy(2, 0), GetXy(0x8010, 2));
Assert.AreEqual(new Xy(3, 0), GetXy(0x8010, 3));
Assert.AreEqual(new Xy(4, 0), GetXy(0x8010, 4));
Assert.AreEqual(new Xy(5, 0), GetXy(0x8010, 5));
Assert.AreEqual(new Xy(6, 0), GetXy(0x8010, 6));
Assert.AreEqual(new Xy(7, 0), GetXy(0x8010, 7));
Assert.AreEqual(new Xy(48, 136), GetXy(0x9170, 0));
Assert.AreEqual(new Xy(80, 128), GetXy(0x90B0, 0));
Assert.AreEqual(new Xy(320, 512), GetXy(0x90B0, 0, 4));
Assert.AreEqual(new Xy(48, 136), GetXy(0x9170, 0));
Assert.AreEqual(new Xy(192, 544), GetXy(0x9170, 0, 4));
}
public void Frame()
{
var originalOddFrame = Ppu.OddFrame;
while (isRunning && originalOddFrame == Ppu.OddFrame)
{
if (stepMode & !shouldStep)
{
return;
}
shouldStep = false;
if (shouldReset)
{
Cpu.Reset();
Ppu.Reset();
Apu.Reset();
originalOddFrame = Ppu.OddFrame;
shouldReset = false;
}
onBeforeStep?.Invoke();
var cycles = Cpu.Step();
for (var i = 0; i < cycles * PpuDotsPerCpuCycle; i++)
{
Ppu.Step();
}
for (var i = 0; i < cycles; i++)
{
Apu.Step();
}
}
}
public void ExecuteFrame()
{
while (CyclesCount < CPU_CYCLES)
{
int cycles = Cpu.ExecuteCycle();
int divisorAmount = Cpu.DoubleSpeed ? 2 : 1;
int dmaCycles = Dma.CopyData();
cycles *= 4;
Timer.Tick(cycles + dmaCycles);
Input.Tick();
Ppu.Tick((cycles + dmaCycles) / divisorAmount);
Apu.Tick((cycles + dmaCycles) / divisorAmount);
CyclesCount += cycles / divisorAmount;
}
CyclesCount -= CPU_CYCLES;
}
private void Form1_Load(object sender, EventArgs e)
{
ppu = new Ppu();
ShowAll();
}
public LegacyNesEmu(Ppu ppu)
{
this.ppu = ppu;
}
public void SetupTv(TvFormat tvFormat, PaletteFormat palleteFormat)
{
Pause();
Cpu.SetTvFormat(tvFormat);
Ppu.SetTvFormat(tvFormat, palleteFormat);
}
public Nes()
{
this.cpu = new Cpu(this);
this.ppu = new Ppu();
}
public void StartFramerate(Ppu newPpu)
{
ppu = newPpu;
}
