From 050c472b38fc2a2c9290d75ab5253bc69af3c30e Mon Sep 17 00:00:00 2001
From: "fires.gc" <fires.gc@gmail.com>
Date: Tue, 15 Jul 2008 08:38:04 +0000
Subject: [PATCH] fixed support for wii elf file loading

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Source/Core/Core/Src/Boot/Boot.cpp  | 64 +++++++++++++++++------------
 Source/Core/Core/Src/HLE/HLE.cpp    |  6 +--
 Source/Core/DolphinWX/src/Frame.cpp |  2 +-
 3 files changed, 42 insertions(+), 30 deletions(-)

diff --git a/Source/Core/Core/Src/Boot/Boot.cpp b/Source/Core/Core/Src/Boot/Boot.cpp
index 1163d8a614..390f84d4af 100644
--- a/Source/Core/Core/Src/Boot/Boot.cpp
+++ b/Source/Core/Core/Src/Boot/Boot.cpp
@@ -210,32 +210,34 @@ void CBoot::EmulatedBIOS(bool _bDebug)
 //
 bool CBoot::EmulatedBIOS_Wii(bool _bDebug)
 {	
-	if (!VolumeHandler::IsValid())
-	{
-		 LOG(MASTER_LOG, "Invalid volume");	
-		 return false;
-	}
-
-
 	LOG(BOOT, "Faking Wii BIOS...");
 
 	// load settings.txt
 	{
-		std::string filename;
-		switch(VolumeHandler::GetVolume()->GetCountry())
+		std::string filename("wii/setting-eur.txt");
+		if (VolumeHandler::IsValid())
 		{
-		case DiscIO::IVolume::COUNTRY_JAP:
-			filename = "wii/setting-jpn.txt";
-			break;
+			switch(VolumeHandler::GetVolume()->GetCountry())
+			{
+			case DiscIO::IVolume::COUNTRY_JAP:
+				filename = "wii/setting-jpn.txt";
+				break;
 
-		case DiscIO::IVolume::COUNTRY_USA:
-			filename = "wii/setting-usa.txt";
-			break;
+			case DiscIO::IVolume::COUNTRY_USA:
+				filename = "wii/setting-usa.txt";
+				break;
 
-		default:
-			filename = "wii/setting-eur.txt";
-			break;
+			case DiscIO::IVolume::COUNTRY_EUROPE:
+				filename = "wii/setting-eur.txt";
+				break;
+
+			default:
+				PanicAlert("Unknown country. Wii boot process will be switched to European settings.");
+				filename = "wii/setting-eur.txt";
+				break;
+			}
 		}
+
 		FILE* pTmp = fopen(filename.c_str(), "rb");
 		if (!pTmp)
 		{
@@ -249,22 +251,25 @@ bool CBoot::EmulatedBIOS_Wii(bool _bDebug)
 
 	// int global vars
 	{
+		Memory::Write_U32(0x8179b500, 0x000000f4);		// __start
 		Memory::Write_U32(0x00000000, 0x000030f0);		// apploader
 		Memory::Write_U16(0x0113, 0x0000315e);			// apploader
 		Memory::Write_U32(0x5d1c9ea3, 0x00000018);		// magic word it is a wii disc
 		Memory::Write_U32(0x01800000, 0x00000028);		
 		Memory::Write_U32(0x04000000, 0x00003118);
 		Memory::Write_U32(0x00000023, 0x0000002c);
-		Memory::Write_U32(0x00000000, 0x000030dc);		// OSTime
-		Memory::Write_U32(0x00000000, 0x000030d8);		// OSTime
-		Memory::Write_U32(0x00000000, 0x0000310c);		// OSInit
-		Memory::Write_U32(0x90000800, 0x00003124);		// OSInit - MEM2 low
-		Memory::Write_U32(0x933e0000, 0x00003128);		// OSInit - MEM2 high
+		Memory::Write_U32(0x00000000, 0x000030dc);		// Time
+		Memory::Write_U32(0x00000000, 0x000030d8);		// Time
+		Memory::Write_U32(0x00000000, 0x00000030);		// Init
+		Memory::Write_U32(0x00000000, 0x0000310c);		// Init
+		Memory::Write_U32(0x8179d500, 0x00003110);		// Init
+		Memory::Write_U32(0x90000800, 0x00003124);		// Init - MEM2 low
+		Memory::Write_U32(0x933e0000, 0x00003128);		// Init - MEM2 high
 		Memory::Write_U32(0x933e0000, 0x00003130);		// IPC MEM2 low
 		Memory::Write_U32(0x93400000, 0x00003134);		// IPC MEM2 high
-		Memory::Write_U32(0x38a00040, 0x00000060);		// exception init
-		Memory::Write_U16(0x0000, 0x000030e6);			// console type
-		Memory::Write_U32(0x00000011, 0x00003138);		// console type
+		Memory::Write_U32(0x38a00040, 0x00000060);		// Exception init
+		Memory::Write_U16(0x0000, 0x000030e6);			// Console type
+		Memory::Write_U32(0x00000011, 0x00003138);		// Console type
 		Memory::Write_U32(0x0e7be2c0, 0x000000f8);		// EXI
 		Memory::Write_U32(0x00000000, 0x000030c0);		// EXI
 		Memory::Write_U32(0x00000000, 0x000030c4);		// EXI
@@ -279,12 +284,19 @@ bool CBoot::EmulatedBIOS_Wii(bool _bDebug)
 		Memory::Write_U32(0x00000005, 0x000000cc);		// VIInit
 		Memory::Write_U16(0x0000, 0x000030e0);			// PADInit
 
+		// clear exception handler
+		for (int i=0x3000; i<=0x3038; i+=4)
+		{
+			Memory::Write_U32(0x00000000, i);
+		}
+
 		// app
 		VolumeHandler::ReadToPtr(Memory::GetPointer(0x3180), 0, 4);
 		Memory::Write_U8(0x80, 0x00003184);
 	}
 
 	// apploader
+	if (VolumeHandler::IsValid())
 	{
 		UReg_MSR& m_MSR = ((UReg_MSR&)PowerPC::ppcState.msr);
 		m_MSR.FP = 1;
diff --git a/Source/Core/Core/Src/HLE/HLE.cpp b/Source/Core/Core/Src/HLE/HLE.cpp
index f5cc3f8610..e92664c5bf 100644
--- a/Source/Core/Core/Src/HLE/HLE.cpp
+++ b/Source/Core/Core/Src/HLE/HLE.cpp
@@ -54,14 +54,15 @@ SPatch OSPatches[] =
 //	{ "THPPlayerGetState",			HLE_Misc:THPPlayerGetState },
 
 
-    // Debugout is very nice .)
+    // debug out is very nice ;)
     { "OSReport",					HLE_OS::HLE_OSReport    },
     { "OSPanic",					HLE_OS::HLE_OSPanic     },
     { "vprintf",					HLE_OS::HLE_vprintf     },		
     { "printf",						HLE_OS::HLE_printf      },
 
 	// wii only
-	{ "SCCheckStatus",				HLE_Misc::UnimplementedFunctionFalse },    // SC is SystemConfig ... dunn
+	{ "SCCheckStatus",				HLE_Misc::UnimplementedFunctionFalse },	
+	{ "__OSInitAudioSystem",        HLE_Misc::UnimplementedFunction },			
 
     // special
 //	{ "GXPeekZ",					HLE_Misc::GXPeekZ},
@@ -71,7 +72,6 @@ SPatch OSPatches[] =
 SPatch OSBreakPoints[] =
 {
 	{ "FAKE_TO_SKIP_0",									HLE_Misc::UnimplementedFunction },
-	//{ "__OSInitAudioSystem",							CHLE_Audio::__OSInitAudioSystem },
 };
 
 void PatchFunctions(const char* _gameID)
diff --git a/Source/Core/DolphinWX/src/Frame.cpp b/Source/Core/DolphinWX/src/Frame.cpp
index 6c3bfcec6a..dbfaf1065b 100644
--- a/Source/Core/DolphinWX/src/Frame.cpp
+++ b/Source/Core/DolphinWX/src/Frame.cpp
@@ -347,7 +347,7 @@ CFrame::OnOpen(wxCommandEvent& WXUNUSED (event))
 					wxFileSelectorDefaultWildcardStr,
 					wxFileSelectorDefaultWildcardStr
 			),
-			wxFD_OPEN | wxFD_PREVIEW,
+			wxFD_OPEN | wxFD_PREVIEW | wxFD_FILE_MUST_EXIST,
 			this);
 
 	if (!path)