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nes-fiddle around with board irq signal tracking system. break every NES savestate. fix a desync bug in a bunch of mappers

This commit is contained in:
zeromus 2012-06-25 06:32:54 +00:00
parent 690fb786a5
commit 1d254c3705
16 changed files with 50 additions and 49 deletions
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7
BizHawk.Emulation/Consoles/Nintendo/NES/BoardSystem.cs
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@ -39,6 +39,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
byte[] ROM { get; set; }
byte[] VROM { get; set; }
void SyncState(Serializer ser);
bool IRQSignal { get; }
//mixes the board's custom audio into the supplied sample buffer
void ApplyCustomAudio(short[] samples);
@ -74,13 +75,17 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("vram", ref vram, true);
ser.Sync("wram", ref wram, true);
for (int i = 0; i < 4; i++) ser.Sync("mirroring" + i, ref mirroring[i]);
ser.Sync("irq_signal", ref irq_signal);
}
public virtual void SyncIRQ(bool flag)
{
NES.irq_cart = flag;
IRQSignal = flag;
}
private bool irq_signal;
public bool IRQSignal { get { return irq_signal; } set { irq_signal = value; } }
public virtual void Dispose() { }
int[] mirroring = new int[4];

9
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/BANDAI-FCG-1.cs
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@ -53,11 +53,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_asserted", ref irq_asserted);
ser.Sync("clock_counter", ref clock_counter);
if (ser.IsReader)
{
SyncPRG();
SyncIrq();
}
SyncPRG();
SyncIrq();
}
public override void Dispose()
@ -169,7 +166,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIrq()
{
NES.irq_cart = irq_asserted;
IRQSignal = irq_asserted;
}
void ClockCPU()

12
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/ExROM.cs
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@ -66,12 +66,10 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("last_nt_read", ref last_nt_read);
ser.Sync("EXRAM", ref EXRAM, false);
if (ser.IsReader)
{
SyncPRGBanks();
SyncCHRBanks();
SyncMultiplier();
}
SyncPRGBanks();
SyncCHRBanks();
SyncMultiplier();
SyncIRQ();
}
public override void Dispose()
@ -451,7 +449,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
public override void ClockPPU()

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Irem_H3001.cs
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@ -40,6 +40,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_counter", ref irq_counter);
ser.Sync("irq_reload", ref irq_reload);
ser.Sync("clock_counter", ref clock_counter);
SyncIRQ();
}
public override bool Configure(NES.EDetectionOrigin origin)
@ -89,7 +90,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = irq_asserted;
IRQSignal = irq_asserted;
}
public override byte ReadPRG(int addr)

5
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
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@ -74,6 +74,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
public void Sync()
{
SyncIRQ();
if (prg_mode)
{
prg_regs_8k[0] = 0xFE;
@ -138,7 +139,9 @@ namespace BizHawk.Emulation.Consoles.Nintendo
Sync();
}
protected virtual void SyncIRQ()
//some MMC3 variants pass along the irq signal differently (primarily different delay)
//this is overrideable so that those boards can get signals whenever this mmc3 base class code manipulates the irq line
public virtual void SyncIRQ()
{
board.SyncIRQ(irq_pending);
}

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Mapper069.cs
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@ -63,6 +63,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_enabled", ref irq_enabled);
ser.Sync("irq_asserted", ref irq_asserted);
ser.Sync("clock_counter", ref clock_counter);
SyncIrq();
}
public override void Dispose()
@ -171,7 +172,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIrq()
{
NES.irq_cart = irq_asserted;
IRQSignal = irq_asserted;
}
void ClockCPU()

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/NAMCOT_m19_m210.cs
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@ -45,6 +45,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_enabled", ref irq_enabled);
ser.Sync("irq_cycles", ref irq_cycles);
ser.Sync("irq_pending", ref irq_pending);
SyncIRQ();
}
public override bool Configure(NES.EDetectionOrigin origin)
@ -256,7 +257,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
void TriggerIRQ()

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Sunsoft3.cs
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@ -30,6 +30,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_enable", ref irq_enable);
ser.Sync("irq_asserted", ref irq_asserted);
ser.Sync("clock_counter", ref clock_counter);
SyncIRQ();
}
public override bool Configure(NES.EDetectionOrigin origin)
@ -63,7 +64,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = irq_asserted;
IRQSignal = irq_asserted;
}
public override void WritePRG(int addr, byte value)

8
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/TENGEN-800032.cs
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@ -54,8 +54,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_reload_pending", ref irq_reload_pending);
ser.Sync("separator_counter", ref separator_counter);
if (ser.IsReader)
Sync();
Sync();
}
public override bool Configure(NES.EDetectionOrigin origin)
@ -83,6 +82,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void Sync()
{
SyncIRQ();
if (prg_mode)
{
prg_banks_8k[0] = regs[0xF] & prg_bank_mask_8k;
@ -189,7 +190,6 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
}
public override byte ReadPRG(int addr)
{
int bank_8k = addr >> 13;
@ -216,7 +216,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = irq_pending;
IRQSignal = irq_pending;
}
void ClockIRQ()

6
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Taito_TC0190FMC.cs
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@ -38,14 +38,14 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.EndSection();
}
protected override void SyncIRQ()
public override void SyncIRQ()
{
if (irq_pending && !pending)
delay = 12; //supposed to be 4 cpu clocks
if (!irq_pending)
{
delay = 0;
board.NES.irq_cart = false;
board.IRQSignal = false;
}
pending = irq_pending;
}
@ -58,7 +58,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
{
delay--;
if(delay==0)
board.NES.irq_cart = true;
board.IRQSignal = true;
}
}
}

10
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/VRC2_4.cs
View File

@ -51,11 +51,9 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_prescaler", ref irq_prescaler);
ser.Sync("extra_vrom", ref extra_vrom);
if (ser.IsReader)
{
SyncPRG();
SyncCHR();
}
SyncPRG();
SyncCHR();
SyncIRQ();
}
void SyncPRG()
@ -93,7 +91,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
public override bool Configure(NES.EDetectionOrigin origin)

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/VRC3.cs
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@ -36,11 +36,12 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_reload", ref irq_reload);
ser.Sync("irq_counter", ref irq_counter);
ser.Sync("irq_cycles", ref irq_cycles);
SyncIRQ();
}
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
public override bool Configure(NES.EDetectionOrigin origin)

8
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/VRC6.cs
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@ -43,10 +43,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_counter", ref irq_counter);
ser.Sync("irq_prescaler", ref irq_prescaler);
if (ser.IsReader)
{
SyncPRG();
}
SyncPRG();
SyncIRQ();
}
void SyncPRG()
@ -59,7 +57,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
public override bool Configure(NES.EDetectionOrigin origin)

3
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/VRC7.cs
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@ -43,11 +43,12 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("irq_reload", ref irq_reload);
ser.Sync("irq_counter", ref irq_counter);
ser.Sync("irq_prescaler", ref irq_prescaler);
SyncIRQ();
}
void SyncIRQ()
{
NES.irq_cart = (irq_pending && irq_enabled);
IRQSignal = (irq_pending && irq_enabled);
}
public override bool Configure(NES.EDetectionOrigin origin)

14
BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs
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@ -24,15 +24,10 @@ namespace BizHawk.Emulation.Consoles.Nintendo
INESBoard board; //the board hardware that is currently driving things
public bool SoundOn = true;
int sprdma_countdown; //used to
bool _irq_apu, _irq_cart; //various irq signals that get merged to the cpu irq pin
bool _irq_apu; //various irq signals that get merged to the cpu irq pin
//irq state management
public bool irq_apu { get { return _irq_apu; } set { _irq_apu = value; sync_irq(); } }
public bool irq_cart { get { return _irq_cart; } set { _irq_cart = value; sync_irq(); } }
void sync_irq()
{
cpu.IRQ = _irq_apu || _irq_cart;
}
public bool irq_apu { get { return _irq_apu; } set { _irq_apu = value; } }
//user configuration
int[,] palette = new int[64,3];
@ -119,10 +114,13 @@ namespace BizHawk.Emulation.Consoles.Nintendo
}
}
if(cpu_deadcounter>0)
if (cpu_deadcounter > 0)
cpu_deadcounter--;
else
{
cpu.IRQ = _irq_apu || board.IRQSignal;
cpu.ExecuteOne();
}
if (SoundOn) apu.RunOne(); //THIS ISNT SAFE!!!!!!!!! SOUND MUST ALWAYS RUN!!!!
ppu.PostCpuInstructionOne();

2
BizHawk.Emulation/Consoles/Nintendo/NES/NES.cs
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@ -590,12 +590,10 @@ namespace BizHawk.Emulation.Consoles.Nintendo
ser.Sync("CIRAM", ref CIRAM, false);
ser.Sync("cpu_accumulate", ref cpu_accumulate);
ser.Sync("_irq_apu", ref _irq_apu);
ser.Sync("_irq_cart", ref _irq_cart);
ser.Sync("sprdma_countdown", ref sprdma_countdown);
ser.Sync("cpu_step", ref cpu_step);
ser.Sync("cpu_stepcounter", ref cpu_stepcounter);
ser.Sync("cpu_deadcounter", ref cpu_deadcounter);
sync_irq();
board.SyncState(ser);
ppu.SyncState(ser);
apu.SyncState(ser);