public Quark_GPIOController(Machine machine) : base(machine, NumberOfGPIOS)
{
internalLock = new object();
previousState = new bool[NumberOfGPIOS];
PortDataDirection = new PinDirection[NumberOfGPIOS];
InterruptEnable = new bool[NumberOfGPIOS];
InterruptMask = new bool[NumberOfGPIOS];
interruptType = new InterruptTrigger[NumberOfGPIOS];
activeInterrupts = new bool[NumberOfGPIOS];
IRQ = new GPIO();
PrepareRegisters();
}
private void SetEdgeSensitivity(uint value, InterruptTrigger trigger)
{
var bits = BitHelper.GetBits(value);
for (var i = 0; i < interruptTriggers.Length; ++i)
{
if (bits[i])
{
interruptTriggers[i] |= trigger;
}
else
{
interruptTriggers[i] ^= trigger;
}
}
}
public void SetInterruptType(byte pinId, InterruptTrigger trigger)
{
lock (internalLock)
{
interruptType[pinId] = trigger;
switch (trigger)
{
case InterruptTrigger.BothEdges:
interruptBothEdgeField.SetBit(pinId, true);
// interruptType and interruptPolarity are not considered when this bit is set
break;
case InterruptTrigger.RisingEdge:
interruptBothEdgeField.SetBit(pinId, false);
interruptTypeField.SetBit(pinId, true);
interruptPolarityField.SetBit(pinId, true);
break;
case InterruptTrigger.FallingEdge:
interruptBothEdgeField.SetBit(pinId, false);
interruptTypeField.SetBit(pinId, true);
interruptPolarityField.SetBit(pinId, false);
break;
case InterruptTrigger.ActiveHigh:
interruptBothEdgeField.SetBit(pinId, false);
interruptTypeField.SetBit(pinId, false);
interruptPolarityField.SetBit(pinId, true);
break;
case InterruptTrigger.ActiveLow:
interruptBothEdgeField.SetBit(pinId, false);
interruptTypeField.SetBit(pinId, false);
interruptPolarityField.SetBit(pinId, false);
break;
}
RefreshInterrupts();
}
}
public EmulationEngine(string bootromFile, string romFile)
{
_logger = Console.Out;
var vram = new MemoryBlock(8192);
var oam = new MemoryBlock(160);
var io = new AddressableRegisterField(256);
// TODO: replace this with the real registers
for (var i = 0; i < io.Size; i++)
{
io.Add(i, new Register <byte>());
}
var @if = new Register <byte>();
var ie = new Register <byte>();
var vblankInterrupt = new InterruptTrigger(new BoolPointer(@if, 0));
var lcdStatusInterrupt = new InterruptTrigger(new BoolPointer(@if, 1));
var timerInterrupt = new InterruptTrigger(new BoolPointer(@if, 2));
var buttonPressInterrupt = new InterruptTrigger(new BoolPointer(@if, 4));
_timerController = new TimerController(timerInterrupt);
var p1 = new ButtonInputRegister(buttonPressInterrupt);
Buttons = p1;
var lcdc = new LcdControlRegister();
var lcdcLogger = new LoggingRegister <byte>(lcdc, "lcdc", _logger, logReads: false);
var stat = new LcdStatusRegister();
var statLogger = new LoggingRegister <byte>(stat, "stat", _logger, logReads: false);
var scy = new Register <byte>();
var scx = new Register <byte>();
var ly = new Register <byte>();
var lyLogger = new LoggingRegister <byte>(ly, "ly", _logger, logReads: false);
var lyc = new Register <byte>();
var bgp = new Register <byte>();
var obp0 = new Register <byte>();
var obp1 = new Register <byte>();
var wy = new Register <byte>();
var wx = new Register <byte>();
var bootromEnable = new Register <byte>();
io.Add(0x00, p1);
var serialLog = new StreamWriter("C:/Users/Andreas/Dropbox/DMG/serial_log.txt", true);
var lastSerialByte = 0;
io.Add(0x01, new LambdaRegister <byte>(b => lastSerialByte = b)); // SB serial transfer
io.Add(0x02, new LambdaRegister <byte>(b => { if (b == 0x81)
{
serialLog.Write(Convert.ToChar(lastSerialByte));
}
serialLog.Flush(); })); // SC serial clock
io.Add(0x04, _timerController.DIV);
io.Add(0x05, _timerController.TIMA);
io.Add(0x06, _timerController.TMA);
io.Add(0x07, _timerController.TAC);
io.Add(0x40, lcdc);
io.Add(0x41, stat);
io.Add(0x42, scy);
io.Add(0x43, scx);
io.Add(0x44, lyLogger);
io.Add(0x45, lyc);
io.Add(0x47, bgp);
io.Add(0x48, obp0);
io.Add(0x49, obp1);
io.Add(0x4A, wy);
io.Add(0x4B, wx);
io.Add(0x50, bootromEnable);
io.Add(0x0F, @if);
io.Add(0xFF, ie);
var cartridge = CartridgeLoader.FromFile(romFile);
var memoryMap = new TopLevelMemoryMap(
new ShadowedMemoryBlock(
MemoryBlock.LoadFromFile(bootromFile),
cartridge.ROM,
new BoolPointer(bootromEnable, 0)
),
cartridge.RAM,
vram,
new MemoryBlock(8192), // internal ram
oam,
io);
io.Add(0x46, new OamDmaController(memoryMap));
State = new MachineState(new RegisterField(), memoryMap);
_loggingState = new MachineState(State.Registers,
new LoggingMemoryBlock(State.Memory, _logger));
_lcdController = new LcdController(lcdc, stat, scx, scy, ly, lyc, bgp,
vram, oam, obp0, obp1, wy, wx, vblankInterrupt, lcdStatusInterrupt);
//SkipBootrom();
//_trace = new StreamWriter($"C:/Users/Andreas/Desktop/trace_{DateTime.Now.ToFileTime()}.txt");
}
