From cfb94849f91ec58293271b7eb86cba83841d1fcd Mon Sep 17 00:00:00 2001
From: Sonicadvance1 <sonicadvance1@gmail.com>
Date: Thu, 21 May 2009 02:44:49 +0000
Subject: [PATCH] More work on BBA, changed mask in JIT to the same mask in
 interpreter. If this is wrong, beat me up, but it fixes BBA for commercial
 games at least

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3265 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Source/Core/Core/Src/HW/BBA-TAP/TAP_Unix.cpp  | 31 ++++++++++++-------
 .../Core/Core/Src/HW/EXI_DeviceEthernet.cpp   | 18 +++++++++--
 Source/Core/Core/Src/HW/EXI_DeviceEthernet.h  |  1 +
 .../Core/Src/PowerPC/Jit64/Jit_Branch.cpp     |  2 +-
 4 files changed, 37 insertions(+), 15 deletions(-)

diff --git a/Source/Core/Core/Src/HW/BBA-TAP/TAP_Unix.cpp b/Source/Core/Core/Src/HW/BBA-TAP/TAP_Unix.cpp
index 6424702019..87a9cfa337 100644
--- a/Source/Core/Core/Src/HW/BBA-TAP/TAP_Unix.cpp
+++ b/Source/Core/Core/Src/HW/BBA-TAP/TAP_Unix.cpp
@@ -68,6 +68,22 @@ bool CEXIETHERNET::activate() {
 	return true;
 	
 }
+bool CEXIETHERNET::CheckRecieved()
+{
+	if(!isActivated())
+		return false;
+	char RBuffer[2048]; // Bigger than MTU, but w/e
+	int Size = recv(fd, RBuffer, 2048, MSG_PEEK);
+	if(Size == -1)
+	{
+		DEBUGPRINT("Recieve check failed with %d\n", errno);
+		return false;
+	}
+	if(Size != 0)
+		DEBUGPRINT("Have waiting Packet of size %d\n", Size);
+	return true;
+}
+
 bool CEXIETHERNET::startRecv() {
 	DEBUGPRINT("Start Receive!\n");
 	exit(0);
@@ -101,6 +117,8 @@ bool CEXIETHERNET::startRecv() {
 }
 bool CEXIETHERNET::sendPacket(u8 *etherpckt, int size) 
 {
+	if(!isActivated())
+		activate();
 	DEBUGPRINT( "Packet: 0x");
 	for(int a = 0; a < size; ++a)
 	{
@@ -110,22 +128,11 @@ bool CEXIETHERNET::sendPacket(u8 *etherpckt, int size)
 	int numBytesWrit = write(fd, etherpckt, size);
 	if(numBytesWrit != size)
 	{
-		DEBUGPRINT("BBA sendPacket %i only got %i bytes sent!\n", size, numBytesWrit);
+		DEBUGPRINT("BBA sendPacket %i only got %i bytes sent!errno: %d\n", size, numBytesWrit, errno);
 		return false;
 	}
 	else
 		DEBUGPRINT("Sent out the correct number of bytes: %d\n", size);
-	//fwrite(etherpckt, size, size, raw_socket);
-	/*DWORD numBytesWrit;
-	OVERLAPPED overlap;
-	ZERO_OBJECT(overlap);
-	//overlap.hEvent = mHRecvEvent;
-	TGLE(WriteFile(mHAdapter, etherpckt, size, &numBytesWrit, &overlap));
-	if(numBytesWrit != size) 
-	{
-		DEGUB("BBA sendPacket %i only got %i bytes sent!\n", size, numBytesWrit);
-		FAIL(UE_BBA_ERROR);
-	}*/
 	recordSendComplete();
 	//exit(0);
 	return true;
diff --git a/Source/Core/Core/Src/HW/EXI_DeviceEthernet.cpp b/Source/Core/Core/Src/HW/EXI_DeviceEthernet.cpp
index 5672603a17..96042abc90 100644
--- a/Source/Core/Core/Src/HW/EXI_DeviceEthernet.cpp
+++ b/Source/Core/Core/Src/HW/EXI_DeviceEthernet.cpp
@@ -80,6 +80,7 @@ CEXIETHERNET::CEXIETHERNET() :
 
 void CEXIETHERNET::SetCS(int cs)
 {
+	DEBUGPRINT("Set CS: %s\n", cs ? "true" : "false");
 	if (!cs)
 	{
 		if (mExpectVariableLengthImmWrite)
@@ -89,8 +90,7 @@ void CEXIETHERNET::SetCS(int cs)
 		}
 		mExpectSpecialImmRead = false;
 		mWriteP = mReadP = INVALID_P;
-		m_uPosition = 0;
-		Expecting = EXPECT_NONE;
+		m_bInterruptSet = false;
 	}
 }
 
@@ -105,6 +105,9 @@ void CEXIETHERNET::Update()
 }
 bool CEXIETHERNET::IsInterruptSet()
 {
+	//bool Temp = m_bInterruptSet;
+	//m_bInterruptSet = false;
+	//return Temp;
 	return m_bInterruptSet;
 }
 
@@ -367,11 +370,22 @@ u32 CEXIETHERNET::ImmRead(u32 _uSize)
 			exit(0);
 		}
 		u32 uResult = 0;
+		switch(mReadP)
+		{
+			case BBA_NWAYS: // Bit of a hack
+				mBbaMem[BBA_NWAYS] = (BBA_NWAYS_LS10 | BBA_NWAYS_LPNWAY | BBA_NWAYS_ANCLPT | BBA_NWAYS_10TXF);
+			break;
+			default:
+			break;
+		}
 		memcpy(&uResult, mBbaMem + mReadP, _uSize);
 		// TODO: We do as well?
 		uResult = Common::swap32(uResult); //Whinecube : we have a byteswap problem...
 		
 		//DEBUGPRINT("Mem spot is 0x%02x uResult is 0x%x\n", mBbaMem[mReadP], uResult);
+		#ifndef _WIN32
+		CheckRecieved();
+		#endif
 		DEBUGPRINT( "\t[INFO]Read from BBA address 0x%0*X, %i byte%s: 0x%0*X\n",mReadP >= CB_OFFSET ? 4 : 2, mReadP, _uSize, (_uSize==1?"":"s"),_uSize*2, getbitsw(uResult, 0, _uSize * 8 - 1));
 		mReadP = mReadP + _uSize;
 		return uResult;
diff --git a/Source/Core/Core/Src/HW/EXI_DeviceEthernet.h b/Source/Core/Core/Src/HW/EXI_DeviceEthernet.h
index 9b7c853004..706a4095c8 100644
--- a/Source/Core/Core/Src/HW/EXI_DeviceEthernet.h
+++ b/Source/Core/Core/Src/HW/EXI_DeviceEthernet.h
@@ -139,6 +139,7 @@ private:
 	
 	//TAP interface
 	bool activate();
+	bool CheckRecieved();
 	bool deactivate();
 	bool isActivated();
 	bool resume();
diff --git a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Branch.cpp b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Branch.cpp
index 93e9557ceb..44b7e61923 100644
--- a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Branch.cpp
+++ b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Branch.cpp
@@ -63,7 +63,7 @@ using namespace Gen;
 		fpr.Flush(FLUSH_ALL);
 		//Bits SRR1[0, 5-9, 16-23, 25-27, 30-31] are placed into the corresponding bits of the MSR.
 		//MSR[13] is set to 0.
-		const u32 mask = 0x87C0FF73;
+		const u32 mask = 0x87C0FFFF;
 		// MSR = (MSR & ~mask) | (SRR1 & mask);
 		MOV(32, R(EAX), M(&MSR));
 		MOV(32, R(ECX), M(&SRR1));