internal NesApu(IMemoryBus cpuBus, IProcessorCore cpu)
{
this.cpuIrq = cpu.GetInterruptByName("IRQ");
this.pulse1 = new PulseChannel(true);
this.pulse2 = new PulseChannel(false);
this.triangle = new TriangleChannel();
this.noise = new NoiseChannel();
this.dmc = new DeltaChannel(cpuBus, cpuIrq);
this.isApuCycle = false;
this.buffer = new byte[NesApu.BUFFER_SIZE];
this.ptr = Marshal.AllocHGlobal(4);
}
internal Ricoh2C02(IProcessorCore cpu, IMemoryBus cpuBus, IMemoryBus ppuBus)
{
this.ppuBus = ppuBus;
this.vbi = cpu.GetInterruptByName("NMI");
this.vbiTimer = new Stopwatch();
this.paletteMemory = new byte[0x20];
this.primaryOam = new byte[0x100];
this.secondaryOam = new byte[0x20];
// PPU registers on CPU bus
cpuBus.RegisterMappedDevice(this, 0x2000, 0x2007);
// Palette data
ppuBus.RegisterMappedDevice(this, 0x3F00, 0x3F1F);
// Set up power-on state
this.SetPpuCtrl(0x00);
this.SetPpuMask(0x00);
this.SetOamAddr(0x00);
this.spriteZeroHit = false;
this.spriteOverflow = false;
this.isVBlank = false;
this.oddFrame = false;
this.scanline = -1;
this.cycle = 0;
this.registers = new ReadOnlyCollection <IRegister>(
new IRegister[] {
new RegisterWrapper("scanline", "PPU Scanline", 16, () => this.scanline, s => this.scanline = s),
new RegisterWrapper("cycle", "PPU Cycle", 16, () => this.cycle, c => this.cycle = c)
});
//this.vbiTimer.Start();
}
