From 5aa34d04835f856ce1543c3a6942d275e2f8a328 Mon Sep 17 00:00:00 2001
From: skidau <skidau@gmail.com>
Date: Wed, 19 Jan 2011 08:13:15 +0000
Subject: [PATCH] Added the fake decrementer to the save state.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6880 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Source/Core/Core/Src/CoreTiming.cpp      | 49 ++++++++++++++++++++++++
 Source/Core/Core/Src/CoreTiming.h        |  9 +++++
 Source/Core/Core/Src/HW/SystemTimers.cpp | 25 +++++-------
 Source/Core/Core/Src/State.cpp           |  2 +-
 4 files changed, 69 insertions(+), 16 deletions(-)

diff --git a/Source/Core/Core/Src/CoreTiming.cpp b/Source/Core/Core/Src/CoreTiming.cpp
index d1a2111ee6..a01a232af8 100644
--- a/Source/Core/Core/Src/CoreTiming.cpp
+++ b/Source/Core/Core/Src/CoreTiming.cpp
@@ -63,6 +63,11 @@ int maxSliceLength = MAX_SLICE_LENGTH;
 s64 globalTimer;
 s64 idledCycles;
 
+u32 fakeDecStartValue;
+u64 fakeDecStartTicks;
+u64 fakeTBStartValue;
+u64 fakeTBStartTicks;
+
 Common::CriticalSection externalEventSection;
 
 void (*advanceCallback)(int cyclesExecuted) = NULL;
@@ -155,6 +160,10 @@ void DoState(PointerWrap &p)
 	p.Do(slicelength);
 	p.Do(globalTimer);
 	p.Do(idledCycles);
+	p.Do(fakeDecStartValue);
+	p.Do(fakeDecStartTicks);
+	p.Do(fakeTBStartValue);
+	p.Do(fakeTBStartTicks);
 	// OK, here we're gonna need to specialize depending on the mode.
 	// Should do something generic to serialize linked lists.
 	switch (p.GetMode()) {
@@ -542,4 +551,44 @@ std::string GetScheduledEventsSummary()
 	return text;
 }
 
+u32 GetFakeDecStartValue()
+{
+	return fakeDecStartValue;
+}
+
+void SetFakeDecStartValue(u32 val)
+{
+	fakeDecStartValue = val;
+}
+
+u64 GetFakeDecStartTicks()
+{
+	return fakeDecStartTicks;
+}
+
+void SetFakeDecStartTicks(u64 val)
+{
+	fakeDecStartTicks = val;
+}
+
+u64 GetFakeTBStartValue()
+{
+	return fakeTBStartValue;
+}
+
+void SetFakeTBStartValue(u64 val)
+{
+	fakeTBStartValue = val;
+}
+
+u64 GetFakeTBStartTicks()
+{
+	return fakeTBStartTicks;
+}
+
+void SetFakeTBStartTicks(u64 val)
+{
+	fakeTBStartTicks = val;
+}
+
 }  // namespace
diff --git a/Source/Core/Core/Src/CoreTiming.h b/Source/Core/Core/Src/CoreTiming.h
index 818c5a9e5f..1592145cf2 100644
--- a/Source/Core/Core/Src/CoreTiming.h
+++ b/Source/Core/Core/Src/CoreTiming.h
@@ -83,6 +83,15 @@ void RegisterAdvanceCallback(void (*callback)(int cyclesExecuted));
 
 std::string GetScheduledEventsSummary();
 
+u32 GetFakeDecStartValue();
+void SetFakeDecStartValue(u32 val);
+u64 GetFakeDecStartTicks();
+void SetFakeDecStartTicks(u64 val);
+u64 GetFakeTBStartValue();
+void SetFakeTBStartValue(u64 val);
+u64 GetFakeTBStartTicks();
+void SetFakeTBStartTicks(u64 val);
+
 extern int downcount;
 extern int slicelength;
 
diff --git a/Source/Core/Core/Src/HW/SystemTimers.cpp b/Source/Core/Core/Src/HW/SystemTimers.cpp
index 41f4d0f275..67564659b7 100644
--- a/Source/Core/Core/Src/HW/SystemTimers.cpp
+++ b/Source/Core/Core/Src/HW/SystemTimers.cpp
@@ -81,11 +81,6 @@ namespace SystemTimers
 
 u32 CPU_CORE_CLOCK  = 486000000u;             // 486 mhz (its not 485, stop bugging me!)
 
-u32 fakeDecStartValue;
-u64 fakeDecStartTicks;
-u64 fakeTBStartValue;
-u64 fakeTBStartTicks;
-
 /*
 Gamecube						MHz
 flipper <-> ARAM bus:			81 (DSP)
@@ -205,8 +200,8 @@ void DecrementerSet()
 	CoreTiming::RemoveEvent(et_Dec);
 	if ((decValue & 0x80000000) == 0)
 	{
-		fakeDecStartTicks = CoreTiming::GetTicks();
-		fakeDecStartValue = decValue;
+		CoreTiming::SetFakeDecStartTicks(CoreTiming::GetTicks());
+		CoreTiming::SetFakeDecStartValue(decValue);
 		
 		CoreTiming::ScheduleEvent(decValue * TIMER_RATIO, et_Dec);
 	}
@@ -214,18 +209,18 @@ void DecrementerSet()
 
 u32 GetFakeDecrementer()
 {
-	return (fakeDecStartValue - (u32)((CoreTiming::GetTicks() - fakeDecStartTicks) / TIMER_RATIO));
+	return (CoreTiming::GetFakeDecStartValue() - (u32)((CoreTiming::GetTicks() - CoreTiming::GetFakeDecStartTicks()) / TIMER_RATIO));
 }
 
 void TimeBaseSet()
 {
-	fakeTBStartTicks = CoreTiming::GetTicks();
-	fakeTBStartValue = *((u64 *)&TL);
+	CoreTiming::SetFakeTBStartTicks(CoreTiming::GetTicks());
+	CoreTiming::SetFakeTBStartValue(*((u64 *)&TL));
 }
 
 u64 GetFakeTimeBase()
 {
-	return fakeTBStartValue + ((CoreTiming::GetTicks() - fakeTBStartTicks) / TIMER_RATIO);
+	return CoreTiming::GetFakeTBStartValue() + ((CoreTiming::GetTicks() - CoreTiming::GetFakeTBStartTicks()) / TIMER_RATIO);
 }
 
 // For DC watchdog hack
@@ -284,11 +279,11 @@ void Init()
 
 	Common::Timer::IncreaseResolution();
 	// store and convert localtime at boot to timebase ticks
-	fakeTBStartValue = (u64)(CPU_CORE_CLOCK / TIMER_RATIO) * (u64)CEXIIPL::GetGCTime();
-	fakeTBStartTicks = CoreTiming::GetTicks();
+	CoreTiming::SetFakeTBStartValue((u64)(CPU_CORE_CLOCK / TIMER_RATIO) * (u64)CEXIIPL::GetGCTime());
+	CoreTiming::SetFakeTBStartTicks(CoreTiming::GetTicks());
 
-	fakeDecStartValue = 0xFFFFFFFF;
-	fakeDecStartTicks = CoreTiming::GetTicks();
+	CoreTiming::SetFakeDecStartValue(0xFFFFFFFF);
+	CoreTiming::SetFakeDecStartTicks(CoreTiming::GetTicks());
 
 	et_Dec = CoreTiming::RegisterEvent("DecCallback", DecrementerCallback);
 	et_AI = CoreTiming::RegisterEvent("AICallback", AICallback);
diff --git a/Source/Core/Core/Src/State.cpp b/Source/Core/Core/Src/State.cpp
index 49732a0859..2f68db0feb 100644
--- a/Source/Core/Core/Src/State.cpp
+++ b/Source/Core/Core/Src/State.cpp
@@ -73,7 +73,7 @@ static Common::Thread *saveThread = NULL;
 
 
 // Don't forget to increase this after doing changes on the savestate system 
-#define STATE_VERSION 3
+#define STATE_VERSION 4
 
 
 void DoState(PointerWrap &p)