Revert merges of aram-dma-fixes and memcard-delay

These merges, while in theory improving emulation accuracy, cause issues
in other parts of the emulator based on invalid assumptions. memcard-delay
fixed some of these issues in the EXI memcard code, but several other
problems still exist and I don't have the time to debug that right now.

Source/Core/Core/Src/HW/DSP.cpp

@@ -436,6 +436,10 @@ void Write16(const u16 _Value, const u32 _Address)
 			if (tmpControl.ARAM) g_dspState.DSPControl.ARAM = 0;
 			if (tmpControl.DSP)  g_dspState.DSPControl.DSP  = 0;
 
+			// Tracking DMAState fixes Knockout Kings 2003 in DSP HLE mode
+			if (GetDSPEmulator()->IsLLE())
+				g_dspState.DSPControl.DMAState = 0;	// keep g_ARAM DMA State zero
+
 			// unknown
 			g_dspState.DSPControl.unk3	= tmpControl.unk3;
 			g_dspState.DSPControl.pad   = tmpControl.pad;
@@ -697,9 +701,9 @@ void Do_ARAM_DMA()
 	// seems like a good estimate
 	CoreTiming::ScheduleEvent_Threadsafe(g_arDMA.Cnt.count >> 1, et_GenerateDSPInterrupt, INT_ARAM | (1<<16));
 
-	// Set the "DMA in progress" flag. It will be cleared when the interrupt will
-	// be triggered, after the simulated delay.
-	g_dspState.DSPControl.DMAState = 1;
+	// Emulating the DMA wait time fixes Knockout Kings 2003 in DSP HLE mode
+	if (!GetDSPEmulator()->IsLLE())
+		g_dspState.DSPControl.DMAState = 1;
 
 	// Real hardware DMAs in 32byte chunks, but we can get by with 8byte chunks
 	if (g_arDMA.Cnt.dir)

Source/Core/Core/Src/HW/EXI_DeviceMemoryCard.cpp

@@ -47,22 +47,13 @@ void CEXIMemoryCard::FlushCallback(u64 userdata, int cyclesLate)
 		pThis->Flush();
 }
 
-void CEXIMemoryCard::CmdDoneCallback(u64 userdata, int cyclesLate)
-{
-	int card_index = (int)userdata;
-	CEXIMemoryCard* pThis = (CEXIMemoryCard*)ExpansionInterface::FindDevice(EXIDEVICE_MEMORYCARD, card_index);
-	if (pThis)
-		pThis->CmdDone();
-}
-
 CEXIMemoryCard::CEXIMemoryCard(const int index)
 	: card_index(index)
 	, m_bDirty(false)
 {
 	m_strFilename = (card_index == 0) ? SConfig::GetInstance().m_strMemoryCardA : SConfig::GetInstance().m_strMemoryCardB;
 	// we're potentially leaking events here, since there's no UnregisterEvent until emu shutdown, but I guess it's inconsequential
-	et_this_card = CoreTiming::RegisterEvent((card_index == 0) ? "memcardFlushA" : "memcardFlushB", FlushCallback);
-	et_cmd_done = CoreTiming::RegisterEvent((card_index == 0) ? "memcardDoneA" : "memcardDoneB", CmdDoneCallback);
+	et_this_card = CoreTiming::RegisterEvent((card_index == 0) ? "memcardA" : "memcardB", FlushCallback);
 
 	interruptSwitch = 0;
 	m_bInterruptSet = 0;
@@ -184,21 +175,6 @@ bool CEXIMemoryCard::IsPresent()
 	return true;
 }
 
-void CEXIMemoryCard::CmdDone()
-{
-	status |= MC_STATUS_READY;
-	status &= ~MC_STATUS_BUSY;
-
-	m_bInterruptSet = 1;
-	m_bDirty = true;
-}
-
-void CEXIMemoryCard::CmdDoneLater(u64 cycles)
-{
-	CoreTiming::RemoveEvent(et_cmd_done);
-	CoreTiming::ScheduleEvent(cycles, et_cmd_done, (u64)card_index);
-}
-
 void CEXIMemoryCard::SetCS(int cs)
 {
 	// So that memory card won't be invalidated during flushing
@@ -222,7 +198,11 @@ void CEXIMemoryCard::SetCS(int cs)
 
 				//???
 
-				CmdDoneLater(5000);
+				status |= MC_STATUS_READY;
+				status &= ~MC_STATUS_BUSY;
+
+				m_bInterruptSet = 1;
+				m_bDirty = true;
 			}
 			break;
 
@@ -249,7 +229,11 @@ void CEXIMemoryCard::SetCS(int cs)
 					address = (address & ~0x1FF) | ((address+1) & 0x1FF);
 				}
 
-				CmdDoneLater(5000);
+				status |= MC_STATUS_READY;
+				status &= ~MC_STATUS_BUSY;
+
+				m_bInterruptSet = 1;
+				m_bDirty = true;
 			}
 
 			// Page written to memory card, not just to buffer - let's schedule a flush 0.5b cycles into the future (1 sec)

Source/Core/Core/Src/HW/EXI_DeviceMemoryCard.h

@@ -47,18 +47,9 @@ class CEXIMemoryCard : public IEXIDevice
 	// through the userdata parameter, so that it can then call Flush on the right card.
 	static void FlushCallback(u64 userdata, int cyclesLate);
 
-	// Scheduled when a command that required delayed end signaling is done.
-	static void CmdDoneCallback(u64 userdata, int cyclesLate);
-
 	// Flushes the memory card contents to disk.
 	void Flush(bool exiting = false);
 
-	// Signals that the command that was previously executed is now done.
-	void CmdDone();
-
-	// Variant of CmdDone which schedules an event later in the future to complete the command.
-	void CmdDoneLater(u64 cycles);
-
 	enum 
 	{
 		cmdNintendoID			= 0x00,
@@ -80,7 +71,7 @@ class CEXIMemoryCard : public IEXIDevice
 
 	std::string m_strFilename;
 	int card_index;
-	int et_this_card, et_cmd_done;
+	int et_this_card;
 	//! memory card state
 
 	// STATE_TO_SAVE

Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_SystemRegisters.cpp

@@ -234,7 +234,6 @@ void Interpreter::mtmsr(UGeckoInstruction _inst)
 {
 	// Privileged?
 	MSR = m_GPR[_inst.RS];
-	PowerPC::CheckExceptions();
 	m_EndBlock = true;
 }
 

Source/Core/Core/Src/PowerPC/Jit64/Jit.cpp

@@ -303,8 +303,7 @@ void Jit64::Cleanup()
 void Jit64::WriteExit(u32 destination, int exit_num)
 {
 	Cleanup();
-
-	SUB(32, M(&CoreTiming::downcount), js.downcountAmount > 127 ? Imm32(js.downcountAmount) : Imm8(js.downcountAmount));
+	SUB(32, M(&CoreTiming::downcount), js.downcountAmount > 127 ? Imm32(js.downcountAmount) : Imm8(js.downcountAmount)); 
 
 	//If nobody has taken care of this yet (this can be removed when all branches are done)
 	JitBlock *b = js.curBlock;

Source/Core/Core/Src/PowerPC/Jit64/Jit_SystemRegisters.cpp

@@ -122,25 +122,7 @@ void Jit64::mtmsr(UGeckoInstruction inst)
 	gpr.UnlockAll();
 	gpr.Flush(FLUSH_ALL);
 	fpr.Flush(FLUSH_ALL);
-
-	// If some exceptions are pending and EE are now enabled, force checking
-	// external exceptions when going out of mtmsr in order to execute delayed
-	// interrupts as soon as possible.
-	MOV(32, R(EAX), M(&MSR));
-	TEST(32, R(EAX), Imm32(0x8000));
-	FixupBranch eeDisabled = J_CC(CC_Z);
-
-	MOV(32, R(EAX), M((void*)&PowerPC::ppcState.Exceptions));
-	TEST(32, R(EAX), R(EAX));
-	FixupBranch noExceptionsPending = J_CC(CC_Z);
-
-	MOV(32, M(&PC), Imm32(js.compilerPC + 4));
-	WriteExternalExceptionExit();
-
-	SetJumpTarget(eeDisabled);
-	SetJumpTarget(noExceptionsPending);
 	WriteExit(js.compilerPC + 4, 0);
-
 	js.firstFPInstructionFound = false;
 }
 

Source/Core/Core/Src/PowerPC/Jit64IL/IR.h

@@ -276,8 +276,8 @@ class IRBuilder {
 	InstLoc EmitLoadMSR() {
 		return FoldZeroOp(LoadMSR, 0);
 	}
-	InstLoc EmitStoreMSR(InstLoc val, InstLoc pc) {
-		return FoldBiOp(StoreMSR, val, pc);
+	InstLoc EmitStoreMSR(InstLoc val) {
+		return FoldUOp(StoreMSR, val);
 	}
 	InstLoc EmitStoreFPRF(InstLoc value) {
 		return FoldUOp(StoreFPRF, value);

Source/Core/Core/Src/PowerPC/Jit64IL/IR_X86.cpp

@@ -994,26 +994,8 @@ static void DoWriteCode(IRBuilder* ibuild, JitIL* Jit, bool UseProfile, bool Mak
 			break;
 		}
 		case StoreMSR: {
-			unsigned InstLoc = ibuild->GetImmValue(getOp2(I));
 			regStoreInstToConstLoc(RI, 32, getOp1(I), &MSR);
 			regNormalRegClear(RI, I);
-
-			// If some exceptions are pending and EE are now enabled, force checking
-			// external exceptions when going out of mtmsr in order to execute delayed
-			// interrupts as soon as possible.
-			Jit->MOV(32, R(EAX), M(&MSR));
-			Jit->TEST(32, R(EAX), Imm32(0x8000));
-			FixupBranch eeDisabled = Jit->J_CC(CC_Z);
-
-			Jit->MOV(32, R(EAX), M((void*)&PowerPC::ppcState.Exceptions));
-			Jit->TEST(32, R(EAX), R(EAX));
-			FixupBranch noExceptionsPending = Jit->J_CC(CC_Z);
-
-			Jit->MOV(32, M(&PC), Imm32(InstLoc + 4));
-			Jit->WriteExceptionExit(); // TODO: Implement WriteExternalExceptionExit for JitIL
-
-			Jit->SetJumpTarget(eeDisabled);
-			Jit->SetJumpTarget(noExceptionsPending);
 			break;
 		}
 		case StoreGQR: {

Source/Core/Core/Src/PowerPC/Jit64IL/JitIL_SystemRegisters.cpp

@@ -106,7 +106,7 @@ void JitIL::mfspr(UGeckoInstruction inst)
 // --------------
 void JitIL::mtmsr(UGeckoInstruction inst)
 {
-	ibuild.EmitStoreMSR(ibuild.EmitLoadGReg(inst.RS), ibuild.EmitIntConst(js.compilerPC));
+	ibuild.EmitStoreMSR(ibuild.EmitLoadGReg(inst.RS));
 	ibuild.EmitBranchUncond(ibuild.EmitIntConst(js.compilerPC + 4));
 }
 // ==============