private void SyncState(Serializer ser)
{
byte[] core = null;
if (ser.IsWriter)
{
var ms = new MemoryStream();
ms.Close();
core = ms.ToArray();
}
_cpu.SyncState(ser);
ser.BeginSection("Coleco");
_vdp.SyncState(ser);
ControllerDeck.SyncState(ser);
PSG.SyncState(ser);
SGM_sound.SyncState(ser);
ser.Sync("UseSGM", ref use_SGM);
ser.Sync("is_MC", ref is_MC);
ser.Sync("MC_bank", ref MC_bank);
ser.Sync("EnableSGMhigh", ref enable_SGM_high);
ser.Sync("EnableSGMlow", ref enable_SGM_low);
ser.Sync("Port_0x53", ref port_0x53);
ser.Sync("Port_0x7F", ref port_0x7F);
ser.Sync("RAM", ref _ram, false);
ser.Sync("SGM_high_RAM", ref SGM_high_RAM, false);
ser.Sync("SGM_low_RAM", ref SGM_low_RAM, false);
ser.Sync("Frame", ref _frame);
ser.Sync("LagCount", ref _lagCount);
ser.Sync("IsLag", ref _isLag);
ser.EndSection();
if (ser.IsReader)
{
SyncAllByteArrayDomains();
}
}
public bool FrameAdvance(IController controller, bool render, bool renderSound)
{
_controller = controller;
// NOTE: Need to research differences between reset and power cycle
if (_controller.IsPressed("Power"))
{
HardReset();
}
if (_controller.IsPressed("Reset"))
{
SoftReset();
}
_frame++;
_isLag = true;
if (_tracer.Enabled)
{
_cpu.TraceCallback = s => _tracer.Put(s);
}
else
{
_cpu.TraceCallback = null;
}
byte tempRet1 = ControllerDeck.ReadPort1(controller, true, false);
byte tempRet2 = ControllerDeck.ReadPort2(controller, true, false);
bool intPending = false;
// the return values represent the controller's current state, but the sampling rate is not high enough
// to catch all changes in wheel orientation
// so we use the wheel variable and interpolate between frames
// first determine how many degrees the wheels changed, and how many regions have been traversed
float change1 = (float)(((ControllerDeck.wheel1 - ControllerDeck.temp_wheel1) % 180) / 1.25);
float change2 = (float)(((ControllerDeck.wheel2 - ControllerDeck.temp_wheel2) % 180) / 1.25);
// special cases
if ((ControllerDeck.temp_wheel1 > 270) && (ControllerDeck.wheel1 < 90))
{
change1 = (float)((ControllerDeck.wheel1 + (360 - ControllerDeck.temp_wheel1)) / 1.25);
}
if ((ControllerDeck.wheel1 > 270) && (ControllerDeck.temp_wheel1 < 90))
{
change1 = -(float)((ControllerDeck.temp_wheel1 + (360 - ControllerDeck.wheel1)) / 1.25);
}
if ((ControllerDeck.temp_wheel2 > 270) && (ControllerDeck.wheel2 < 90))
{
change2 = (float)((ControllerDeck.wheel2 + (360 - ControllerDeck.temp_wheel2)) / 1.25);
}
if ((ControllerDeck.wheel2 > 270) && (ControllerDeck.temp_wheel2 < 90))
{
change2 = -(float)((ControllerDeck.temp_wheel2 + (360 - ControllerDeck.wheel2)) / 1.25);
}
int changes1 = change1 > 0 ? (int)Math.Floor(change1) : (int)Math.Ceiling(change1);
int changes2 = change2 > 0 ? (int)Math.Floor(change2) : (int)Math.Ceiling(change2);
for (int scanLine = 0; scanLine < 262; scanLine++)
{
_vdp.RenderScanline(scanLine);
if (scanLine == 192)
{
_vdp.InterruptPending = true;
if (_vdp.EnableInterrupts)
{
_cpu.NonMaskableInterrupt = true;
}
}
for (int i = 0; i < 228; i++)
{
PSG.generate_sound(1);
if (use_SGM)
{
SGM_sound.generate_sound(1);
}
_cpu.ExecuteOne();
// pick out sound samples from the sound devices twice per scanline
int v = PSG.Sample();
if (use_SGM)
{
v += SGM_sound.Sample();
}
if (v != _latchedSample)
{
_blip.AddDelta((uint)_sampleClock, v - _latchedSample);
_latchedSample = v;
}
_sampleClock++;
}
// starting from scanline 20, changes to the wheel are added once per scanline (up to 144)
if (scanLine > 20)
{
if (changes1 != 0)
{
if (changes1 > 0)
{
ControllerDeck.temp_wheel1 = (float)((ControllerDeck.temp_wheel1 + 1.25) % 360);
changes1--;
}
else
{
ControllerDeck.temp_wheel1 = (float)((ControllerDeck.temp_wheel1 - 1.25) % 360);
changes1++;
}
}
if (changes2 != 0)
{
if (changes2 > 0)
{
ControllerDeck.temp_wheel2 = (float)((ControllerDeck.temp_wheel2 + 1.25) % 360);
changes2--;
}
else
{
ControllerDeck.temp_wheel2 = (float)((ControllerDeck.temp_wheel2 - 1.25) % 360);
changes2++;
}
}
}
tempRet1 = ControllerDeck.ReadPort1(controller, true, true);
tempRet2 = ControllerDeck.ReadPort2(controller, true, true);
intPending = (!tempRet1.Bit(4) && temp_1_prev) | (!tempRet2.Bit(4) && temp_2_prev);
_cpu.FlagI = false;
if (intPending)
{
_cpu.FlagI = true;
intPending = false;
}
temp_1_prev = tempRet1.Bit(4);
temp_2_prev = tempRet2.Bit(4);
}
ControllerDeck.temp_wheel1 = ControllerDeck.wheel1;
ControllerDeck.temp_wheel2 = ControllerDeck.wheel2;
if (_isLag)
{
_lagCount++;
}
return(true);
}
private void SyncState(Serializer ser)
{
int version = 4;
ser.BeginSection(nameof(NES));
ser.Sync(nameof(version), ref version);
ser.Sync("Frame", ref _frame);
ser.Sync("Lag", ref _lagcount);
ser.Sync("IsLag", ref islag);
cpu.SyncState(ser);
ser.Sync(nameof(ram), ref ram, false);
ser.Sync(nameof(CIRAM), ref CIRAM, false);
ser.Sync(nameof(_irq_apu), ref _irq_apu);
ser.Sync(nameof(sprdma_countdown), ref sprdma_countdown);
ser.Sync(nameof(cpu_deadcounter), ref cpu_deadcounter);
ser.Sync(nameof(old_s), ref old_s);
// OAM related
ser.Sync(nameof(oam_dma_index), ref oam_dma_index);
ser.Sync(nameof(oam_dma_exec), ref oam_dma_exec);
ser.Sync(nameof(oam_dma_addr), ref oam_dma_addr);
ser.Sync(nameof(oam_dma_byte), ref oam_dma_byte);
ser.Sync(nameof(dmc_dma_exec), ref dmc_dma_exec);
ser.Sync(nameof(dmc_realign), ref dmc_realign);
ser.Sync(nameof(reread_trigger), ref reread_trigger);
ser.Sync(nameof(do_the_reread_2002), ref do_the_reread_2002);
ser.Sync(nameof(do_the_reread_2007), ref do_the_reread_2007);
ser.Sync(nameof(do_the_reread_cont_1), ref do_the_reread_cont_1);
ser.Sync(nameof(do_the_reread_cont_2), ref do_the_reread_cont_2);
ser.Sync(nameof(reread_opp_4016), ref reread_opp_4016);
ser.Sync(nameof(reread_opp_4017), ref reread_opp_4017);
// VS related
ser.Sync("VS", ref _isVS);
ser.Sync("VS_2c05", ref _isVS2c05);
ser.Sync("VS_CHR", ref VS_chr_reg);
ser.Sync("VS_PRG", ref VS_prg_reg);
ser.Sync("VS_DIPS", ref VS_dips, false);
ser.Sync("VS_Service", ref VS_service);
ser.Sync("VS_Coin", ref VS_coin_inserted);
ser.Sync("VS_ROM_Control", ref VS_ROM_control);
// single cycle execution related
ser.Sync(nameof(current_strobe), ref current_strobe);
ser.Sync(nameof(new_strobe), ref new_strobe);
ser.BeginSection(nameof(Board));
Board.SyncState(ser);
if (Board is NesBoardBase board && !board.SyncStateFlag)
{
throw new InvalidOperationException($"the current NES mapper didn't call base.{nameof(INesBoard.SyncState)}");
}
ser.EndSection();
ppu.SyncState(ser);
apu.SyncState(ser);
if (version >= 2)
{
ser.Sync(nameof(DB), ref DB);
}
if (version >= 3)
{
ser.Sync(nameof(latched4016), ref latched4016);
ser.BeginSection(nameof(ControllerDeck));
ControllerDeck.SyncState(ser);
ser.EndSection();
}
if (version >= 4)
{
ser.Sync(nameof(resetSignal), ref resetSignal);
ser.Sync(nameof(hardResetSignal), ref hardResetSignal);
}
ser.EndSection();
}
private void SyncState(Serializer ser)
{
int version = 4;
ser.BeginSection("NES");
ser.Sync("version", ref version);
ser.Sync("Frame", ref _frame);
ser.Sync("Lag", ref _lagcount);
ser.Sync("IsLag", ref islag);
cpu.SyncState(ser);
ser.Sync("ram", ref ram, false);
ser.Sync("CIRAM", ref CIRAM, false);
ser.Sync("_irq_apu", ref _irq_apu);
ser.Sync("sprdma_countdown", ref sprdma_countdown);
ser.Sync("cpu_deadcounter", ref cpu_deadcounter);
//oam related
ser.Sync("Oam_Dma_Index", ref oam_dma_index);
ser.Sync("Oam_Dma_Exec", ref oam_dma_exec);
ser.Sync("Oam_Dma_Addr", ref oam_dma_addr);
ser.Sync("Oam_Dma_Byte", ref oam_dma_byte);
ser.Sync("Dmc_Dma_Exec", ref dmc_dma_exec);
ser.Sync("dmc_realign", ref dmc_realign);
ser.Sync("IRQ_delay", ref IRQ_delay);
ser.Sync("special_case_delay", ref special_case_delay);
ser.Sync("do_the_reread", ref do_the_reread);
//VS related
ser.Sync("VS", ref _isVS);
ser.Sync("VS_2c05", ref _isVS2c05);
ser.Sync("VS_CHR", ref VS_chr_reg);
ser.Sync("VS_PRG", ref VS_prg_reg);
ser.Sync("VS_DIPS", ref VS_dips, false);
ser.Sync("VS_Service", ref VS_service);
ser.Sync("VS_Coin", ref VS_coin_inserted);
ser.Sync("VS_ROM_Control", ref VS_ROM_control);
ser.BeginSection("Board");
Board.SyncState(ser);
if (Board is NESBoardBase && !((NESBoardBase)Board).SyncStateFlag)
{
throw new InvalidOperationException("the current NES mapper didnt call base.SyncState");
}
ser.EndSection();
ppu.SyncState(ser);
apu.SyncState(ser);
if (version >= 2)
{
ser.Sync("DB", ref DB);
}
if (version >= 3)
{
ser.Sync("latched4016", ref latched4016);
ser.BeginSection("ControllerDeck");
ControllerDeck.SyncState(ser);
ser.EndSection();
}
if (version >= 4)
{
ser.Sync("resetSignal", ref resetSignal);
ser.Sync("hardResetSignal", ref hardResetSignal);
}
ser.EndSection();
}