public void ProcessMicBitAbortsInPassiveMode()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = 0x0038;
td.SetTapeMode();
// --- Act
td.ProcessMicBit(true);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
td.SavePhase.ShouldBe(SavePhase.None);
}
public void ProcessMicBitWorksInSaveModeWithBitChange()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
// --- Act
td.ProcessMicBit(false);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
}
public void GetEarBitsReturnTrueInLoadModeWithNoPlayer()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.LoadBytesRoutineAddress;
td.SetTapeMode();
// --- Act
var bit = td.GetEarBit(0);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Load);
bit.ShouldBeTrue();
}
public void GetEarBitsReturnTrueInPassiveMode()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = 0x0038;
td.SetTapeMode();
// --- Act
var bit = td.GetEarBit(0);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
bit.ShouldBeTrue();
}
public void CreateTapeFileIsInvokedWhenEnteringSaveMode()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var provider = new FakeTapeProvider();
var td = new TapeDevice(provider, provider);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
// --- Act
td.SetTapeMode();
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
provider.CreateTapeFileInvoked.ShouldBeTrue();
}
public void ProcessMicBitAbortsInLoadMode()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = vm.RomInfo.LoadBytesRoutineAddress;
td.SetTapeMode();
// --- Act
td.ProcessMicBit(true);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Load);
td.SavePhase.ShouldBe(SavePhase.None);
}
public void SetTapeModeLeavesLoadModeWhenEof()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(new EmptyTapeContentProvider());
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.LoadBytesRoutineAddress;
td.SetTapeMode();
var before = td.CurrentMode;
// --- Act
td.SetTapeMode();
// --- Assert
before.ShouldBe(TapeOperationMode.Load);
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
}
public void SetTapeModeInvokesEnteredLoadModeEvent()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.LoadBytesRoutineAddress;
var invoked = false;
td.EnteredLoadMode += (sender, args) => { invoked = true; };
// --- Act
td.SetTapeMode();
// --- Assert
invoked.ShouldBeTrue();
}
public void SaveTzxBlockIsCalledWhenCompletingDataBlock()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var provider = new FakeTapeProvider();
var td = new TapeDevice(provider, provider);
td.OnAttachedToVm(vm);
var testData = new byte[] { 0x90, 0x02, 0x05, 0xAA, 0xFF, 0x63 };
// --- Act
EmitFullDataBlock(vm, td, testData);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
provider.SaveTzxBlockInvoked.ShouldBeTrue();
}
public void ProcessMicBitFailsWithLongBit1Pulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
(var debugCpu, var tacts, var pulse) = EmitHeaderWithSync(vm, td);
// --- Act
tacts += TapeDataBlockPlayer.BIT_1_PL + TapeDevice.SAVE_PULSE_TOLERANCE + 1;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Error);
}
public void ProcessMicBitFailsWithLongPilotPulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var debugCpu = vm.Cpu as IZ80CpuTestSupport;
// --- Act
debugCpu.SetTacts(TapeDataBlockPlayer.PILOT_PL + TapeDevice.SAVE_PULSE_TOLERANCE + 1);
td.ProcessMicBit(false);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Error);
}
public void SetTapeModeLeavesSaveModeWhenError()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var before = td.CurrentMode;
// --- Act
vm.Cpu.Registers.PC = TapeDevice.ERROR_ROM_ADDRESS;
td.SetTapeMode();
// --- Assert
before.ShouldBe(TapeOperationMode.Save);
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
}
public void ProcessMicBitCatchesFirstPilotPulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var debugCpu = vm.Cpu as IZ80CpuTestSupport;
// --- Act
debugCpu.SetTacts(TapeDataBlockPlayer.PILOT_PL);
td.ProcessMicBit(false);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Pilot);
td.PilotPulseCount.ShouldBe(1);
}
public void ProcessMicBitFailsWithShortTermSyncPulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
var testData = new byte[] { 0x90, 0x02, 0x05, 0xAA, 0xFF, 0x63 };
(var debugCpu, var tacts, var pulse) = EmitHeaderAndData(vm, td, testData);
// --- Act
tacts += TapeDataBlockPlayer.TERM_SYNC - TapeDevice.SAVE_PULSE_TOLERANCE - 1;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Error);
}
public void SetTapeModeInvokesLeftSaveModeWhenError()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var invoked = false;
td.LeftSaveMode += (sender, args) => { invoked = true; };
// --- Act
vm.Cpu.Registers.PC = TapeDevice.ERROR_ROM_ADDRESS;
td.SetTapeMode();
// --- Assert
invoked.ShouldBeTrue();
}
public void SetTapeModeLeavesSaveModeAfterSilence()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var before = td.CurrentMode;
// --- Act
var debugCpu = vm.Cpu as IZ80CpuTestSupport;
debugCpu.SetTacts(2 * TapeDevice.SAVE_STOP_SILENCE);
td.SetTapeMode();
// --- Assert
before.ShouldBe(TapeOperationMode.Save);
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
}
public void SetNameIsNotCalledWithInvalidHeader()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var provider = new FakeTapeProvider();
var td = new TapeDevice(provider, provider);
td.OnAttachedToVm(vm);
var testData = new byte[]
{
0x42, 0x6F, 0x72, 0x64, 0x65, 0x72, 0x20, 0x20, 0x20, 0x20
};
// --- Act
EmitFullDataBlock(vm, td, testData);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
provider.SuggestedName.ShouldBeNull();
}
public void ProcessMicBitWorksWithBit1Pulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
(var debugCpu, var tacts, var pulse) = EmitHeaderWithSync(vm, td);
// --- Act
tacts += TapeDataBlockPlayer.BIT_1_PL;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Data);
td.BitOffset.ShouldBe(0);
td.DataByte.ShouldBe((byte)0);
td.PrevDataPulse.ShouldBe(MicPulseType.Bit1);
}
public void ProcessMicBitWorksWithDataBytes()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
var testData = new byte[] { 0x90, 0x02, 0x05, 0xAA, 0xFF, 0x63 };
// --- Act
EmitHeaderAndData(vm, td, testData);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.Data);
td.DataLength.ShouldBe(testData.Length);
for (var i = 0; i < testData.Length; i++)
{
td.DataBuffer[i].ShouldBe(testData[i]);
}
}
/// <summary>
/// Writes a byte of data to a specified port address
/// </summary>
/// <param name="port"></param>
/// <param name="value"></param>
public override void WritePort(ushort port, byte value)
{
// process IO contention
ContendPortAddress(port);
// Check whether the low bit is reset
// Technically the ULA should respond to every even I/O address
if ((port & 0x0001) != 0)
{
return;
}
// store the last OUT byte
LastULAOutByte = value;
/*
* Bit 7 6 5 4 3 2 1 0
+-------------------------------+
| | | | E | M | Border |
+-------------------------------+
*/
// Border - LSB 3 bits hold the border colour
if (ULADevice.borderColour != (value & BORDER_BIT))
{
// border value has changed - update the screen buffer
ULADevice.UpdateScreenBuffer(CurrentFrameCycle);
}
ULADevice.borderColour = value & BORDER_BIT;
// Buzzer
BuzzerDevice.ProcessPulseValue((value & EAR_BIT) != 0);
// Tape
TapeDevice.WritePort(port, value);
// Tape mic processing (not implemented yet)
//TapeDevice.ProcessMicBit((value & MIC_BIT) != 0);
}
public void SetTapeModeInvokesLedtSaveModeEventAfterSilence()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var invoked = false;
td.LeftSaveMode += (sender, args) => { invoked = true; };
// --- Act
var debugCpu = vm.Cpu as IZ80CpuTestSupport;
debugCpu.SetTacts(2 * TapeDevice.SAVE_STOP_SILENCE);
td.SetTapeMode();
// --- Assert
invoked.ShouldBeTrue();
}
public void SetNameIsCalledAtFirstDataBlock()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var saveProvider = new FakeSaveToTapeProvider();
var td = new TapeDevice(saveProvider);
td.OnAttachedToVm(vm);
var testData = new byte[]
{
0x00, 0x00,
0x42, 0x6F, 0x72, 0x64, 0x65, 0x72, 0x20, 0x20, 0x20, 0x20,
0x4F, 0x00, 0x6F, 0x80, 0x4F, 0x00, 0xC3
};
// --- Act
EmitFullDataBlock(vm, td, testData);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
saveProvider.SuggestedName.ShouldBe("Border");
}
public void FinalizeTapeFileIsInvokedWhenLeavingSaveMode()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var saveProvider = new FakeSaveToTapeProvider();
var td = new TapeDevice(saveProvider);
td.OnAttachedToVm(vm);
vm.Cpu.Registers.PC = td.SaveBytesRoutineAddress;
td.SetTapeMode();
var before = td.CurrentMode;
// --- Act
var debugCpu = vm.Cpu as IZ80CpuTestSupport;
debugCpu.SetTacts(2 * TapeDevice.SAVE_STOP_SILENCE);
td.SetTapeMode();
// --- Assert
before.ShouldBe(TapeOperationMode.Save);
td.CurrentMode.ShouldBe(TapeOperationMode.Passive);
saveProvider.FinalizeTapeFileInvoked.ShouldBeTrue();
}
/// <summary>
/// Writes a byte of data to a specified port address
/// </summary>
public override void WritePort(ushort port, byte value)
{
// Check whether the low bit is reset
// Technically the ULA should respond to every even I/O address
if ((port & 0x0001) != 0)
{
return;
}
LastFe = value;
// store the last OUT byte
LastULAOutByte = value;
/*
* Bit 7 6 5 4 3 2 1 0
+-------------------------------+
| | | | E | M | Border |
+-------------------------------+
*/
// Border - LSB 3 bits hold the border colour
if (ULADevice.BorderColor != (value & BORDER_BIT))
{
//ULADevice.RenderScreen((int)CurrentFrameCycle);
ULADevice.BorderColor = value & BORDER_BIT;
}
// Buzzer
BuzzerDevice.ProcessPulseValue((value & EAR_BIT) != 0, _renderSound);
// Tape
TapeDevice.WritePort(port, value);
// Tape mic processing (not implemented yet)
//TapeDevice.ProcessMicBit((value & MIC_BIT) != 0);
}
public void ProcessMicBitWorksWithTermSyncPulse()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
var testData = new byte[] { 0x90, 0x02, 0x05, 0xAA, 0xFF, 0x63 };
(var debugCpu, var tacts, var pulse) = EmitHeaderAndData(vm, td, testData);
// --- Act
tacts += TapeDataBlockPlayer.TERM_SYNC;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
for (var i = 0; i < testData.Length; i++)
{
td.DataBuffer[i].ShouldBe(testData[i]);
}
}
public void ProcessMicBitWorksWithMultipleDataBlock()
{
// --- Arrange
var vm = new SpectrumTapeDeviceTestMachine();
var td = new TapeDevice(null, null);
td.OnAttachedToVm(vm);
var testData = new byte[] { 0x90, 0x02, 0x05, 0xAA, 0xFF, 0x63 };
// --- Act
(var debugCpu, var tacts, var pulse) = EmitFullDataBlock(vm, td, testData);
tacts += TapeDataBlockPlayer.PILOT_PL * 5;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
(debugCpu, tacts, pulse) = EmitFullDataBlock(vm, td, testData);
tacts += TapeDataBlockPlayer.PILOT_PL * 5;
debugCpu.SetTacts(tacts);
td.ProcessMicBit(pulse);
// --- Assert
td.CurrentMode.ShouldBe(TapeOperationMode.Save);
td.SavePhase.ShouldBe(SavePhase.None);
td.DataBlockCount.ShouldBe(2);
}
/// <summary>
/// Writes a byte of data to a specified port address
/// </summary>
/// <param name="port"></param>
/// <param name="value"></param>
public override void WritePort(ushort port, byte value)
{
// process IO contention
ContendPortAddress(port);
// get a BitArray of the port
BitArray portBits = new BitArray(BitConverter.GetBytes(port));
// get a BitArray of the value byte
BitArray bits = new BitArray(new byte[] { value });
// Check whether the low bit is reset
bool lowBitReset = !portBits[0]; // (port & 0x01) == 0;
AYDevice.WritePort(port, value);
UPDDiskDevice.WritePort(port, value);
// port 0x7ffd - hardware should only respond when bits 1 & 15 are reset and bit 14 is set
if (port == 0x7ffd)
{
if (!PagingDisabled)
{
// bits 0, 1, 2 select the RAM page
var rp = value & 0x07;
if (rp < 8)
{
RAMPaged = rp;
}
// bit 3 controls shadow screen
SHADOWPaged = bits[3];
// Bit 5 set signifies that paging is disabled until next reboot
PagingDisabled = bits[5];
// portbit 4 is the LOW BIT of the ROM selection
ROMlow = bits[4];
}
}
// port 0x1ffd - hardware should only respond when bits 1, 13, 14 & 15 are reset and bit 12 is set
if (port == 0x1ffd)
{
if (!PagingDisabled)
{
if (!bits[0])
{
// special paging is not enabled - get the ROMpage high byte
ROMhigh = bits[2];
// set the special paging mode flag
SpecialPagingMode = false;
}
else
{
// special paging is enabled
// this is decided based on combinations of bits 1 & 2
// Config 0 = Bit1-0 Bit2-0
// Config 1 = Bit1-1 Bit2-0
// Config 2 = Bit1-0 Bit2-1
// Config 3 = Bit1-1 Bit2-1
BitArray confHalfNibble = new BitArray(2);
confHalfNibble[0] = bits[1];
confHalfNibble[1] = bits[2];
// set special paging configuration
PagingConfiguration = ZXSpectrum.GetIntFromBitArray(confHalfNibble);
// set the special paging mode flag
SpecialPagingMode = true;
}
}
// bit 4 is the printer port strobe
PrinterPortStrobe = bits[4];
}
// Only even addresses address the ULA
if (lowBitReset)
{
// store the last OUT byte
LastULAOutByte = value;
/*
* Bit 7 6 5 4 3 2 1 0
+-------------------------------+
| | | | E | M | Border |
+-------------------------------+
*/
// Border - LSB 3 bits hold the border colour
if (ULADevice.borderColour != (value & BORDER_BIT))
{
ULADevice.UpdateScreenBuffer(CurrentFrameCycle);
}
ULADevice.borderColour = value & BORDER_BIT;
// Buzzer
BuzzerDevice.ProcessPulseValue((value & EAR_BIT) != 0);
// Tape
TapeDevice.WritePort(port, value);
// Tape
//TapeDevice.ProcessMicBit((value & MIC_BIT) != 0);
}
LastULAOutByte = value;
}
/// <summary>
/// Reads a byte of data from a specified port address
/// </summary>
/// <param name="port"></param>
/// <returns></returns>
public override byte ReadPort(ushort port)
{
bool deviceAddressed = true;
// process IO contention
ContendPortAddress(port);
int result = 0xFF;
// check AY
if (AYDevice.ReadPort(port, ref result))
{
return((byte)result);
}
// Kempston joystick input takes priority over all other input
// if this is detected just return the kempston byte
if ((port & 0xe0) == 0 || (port & 0x20) == 0)
{
if (LocateUniqueJoystick(JoystickType.Kempston) != null)
{
return((byte)((KempstonJoystick)LocateUniqueJoystick(JoystickType.Kempston) as KempstonJoystick).JoyLine);
}
InputRead = true;
}
else if (UPDDiskDevice.ReadPort(port, ref result))
{
return((byte)result);
}
else
{
if (KeyboardDevice.ReadPort(port, ref result))
{
// not a lagframe
InputRead = true;
// process tape INs
TapeDevice.ReadPort(port, ref result);
}
else
{
deviceAddressed = false;
}
}
if (!deviceAddressed)
{
// If this is an unused port the floating memory bus should be returned
// Floating bus is read on the previous cycle
long _tStates = CurrentFrameCycle - 1;
// if we are on the top or bottom border return 0xff
if ((_tStates < ULADevice.contentionStartPeriod) || (_tStates > ULADevice.contentionEndPeriod))
{
result = 0xff;
}
else
{
if (ULADevice.floatingBusTable[_tStates] < 0)
{
result = 0xff;
}
else
{
result = ReadBus((ushort)ULADevice.floatingBusTable[_tStates]);
}
}
}
return((byte)result);
}
public void SyncState(Serializer ser)
{
ser.BeginSection("ZXMachine");
ser.Sync("FrameCompleted", ref FrameCompleted);
ser.Sync("OverFlow", ref OverFlow);
ser.Sync("FrameCount", ref FrameCount);
ser.Sync("_frameCycles", ref _frameCycles);
ser.Sync("inputRead", ref inputRead);
ser.Sync("LastFrameStartCPUTick", ref LastFrameStartCPUTick);
ser.Sync("LastULAOutByte", ref LastULAOutByte);
ser.Sync("ROM0", ref ROM0, false);
ser.Sync("ROM1", ref ROM1, false);
ser.Sync("ROM2", ref ROM2, false);
ser.Sync("ROM3", ref ROM3, false);
ser.Sync("RAM0", ref RAM0, false);
ser.Sync("RAM1", ref RAM1, false);
ser.Sync("RAM2", ref RAM2, false);
ser.Sync("RAM3", ref RAM3, false);
ser.Sync("RAM4", ref RAM4, false);
ser.Sync("RAM5", ref RAM5, false);
ser.Sync("RAM6", ref RAM6, false);
ser.Sync("RAM7", ref RAM7, false);
ser.Sync("ROMPaged", ref ROMPaged);
ser.Sync("SHADOWPaged", ref SHADOWPaged);
ser.Sync("RAMPaged", ref RAMPaged);
ser.Sync("PagingDisabled", ref PagingDisabled);
ser.Sync("SpecialPagingMode", ref SpecialPagingMode);
ser.Sync("PagingConfiguration", ref PagingConfiguration);
ser.Sync("ROMhigh", ref ROMhigh);
ser.Sync("ROMlow", ref ROMlow);
ser.Sync("LastContendedReadByte", ref LastContendedReadByte);
KeyboardDevice.SyncState(ser);
BuzzerDevice.SyncState(ser);
TapeBuzzer.SyncState(ser);
ULADevice.SyncState(ser);
CPUMon.SyncState(ser);
if (AYDevice != null)
{
AYDevice.SyncState(ser);
((AY38912)AYDevice as AY38912).PanningConfiguration = Spectrum.Settings.AYPanConfig;
}
ser.Sync("tapeMediaIndex", ref tapeMediaIndex);
if (ser.IsReader)
{
IsLoadState = true;
TapeMediaIndex = tapeMediaIndex;
IsLoadState = false;
}
TapeDevice.SyncState(ser);
ser.Sync("diskMediaIndex", ref diskMediaIndex);
if (ser.IsReader)
{
IsLoadState = true;
DiskMediaIndex = diskMediaIndex;
IsLoadState = false;
}
if (UPDDiskDevice != null)
{
UPDDiskDevice.SyncState(ser);
}
ser.EndSection();
}
/// <summary>
/// Executes a single frame
/// </summary>
public virtual void ExecuteFrame(bool render, bool renderSound)
{
ULADevice.FrameEnd = false;
ULADevice.ULACycleCounter = CurrentFrameCycle;
InputRead = false;
_render = render;
_renderSound = renderSound;
FrameCompleted = false;
if (UPDDiskDevice == null || !UPDDiskDevice.FDD_IsDiskLoaded)
{
TapeDevice.StartFrame();
}
if (_renderSound)
{
if (AYDevice != null)
{
AYDevice.StartFrame();
}
}
PollInput();
for (;;)
{
// run the CPU Monitor cycle
CPUMon.ExecuteCycle();
// cycle the tape device
if (UPDDiskDevice == null || !UPDDiskDevice.FDD_IsDiskLoaded)
{
TapeDevice.TapeCycle();
}
// has frame end been reached?
if (ULADevice.FrameEnd)
{
break;
}
}
OverFlow = (int)CurrentFrameCycle - ULADevice.FrameLength;
// we have reached the end of a frame
LastFrameStartCPUTick = CPU.TotalExecutedCycles - OverFlow;
ULADevice.LastTState = 0;
if (AYDevice != null)
{
AYDevice.EndFrame();
}
FrameCount++;
if (UPDDiskDevice == null || !UPDDiskDevice.FDD_IsDiskLoaded)
{
TapeDevice.EndFrame();
}
FrameCompleted = true;
// is this a lag frame?
Spectrum.IsLagFrame = !InputRead;
// FDC debug
if (UPDDiskDevice != null && UPDDiskDevice.writeDebug)
{
// only write UPD log every second
if (FrameCount % 10 == 0)
{
System.IO.File.AppendAllLines(UPDDiskDevice.outputfile, UPDDiskDevice.dLog);
UPDDiskDevice.dLog = new System.Collections.Generic.List <string>();
//System.IO.File.WriteAllText(UPDDiskDevice.outputfile, UPDDiskDevice.outputString);
}
}
}
