Remove the last use of MappedFile and kill the code. (less code is good!) (we've found that file mapping in the context of Dolphin only causes problems and give no speed gain - Dolphin gobbles address space ferociously on its own without mapping in huge disk images). Add some math util functions.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3441 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/Core/Src/Boot/Boot.cpp

@@ -19,7 +19,6 @@
 #include "Common.h" // Common
 #include "StringUtil.h"
 #include "FileUtil.h"
-#include "MappedFile.h"
 
 #include "../HLE/HLE.h" // Core
 #include "../PowerPC/PowerPC.h"
@@ -145,25 +144,13 @@ bool CBoot::LoadMapFromFilename(const std::string &_rFilename, const char *_game
 bool CBoot::Load_BIOS(const std::string& _rBiosFilename)
 {
     bool bResult = false;
-    Common::IMappedFile* pFile = Common::IMappedFile::CreateMappedFileDEPRECATED();
-    if (pFile->Open(_rBiosFilename.c_str()))
-    {
-        if (pFile->GetSize() >= 1024*1024*2)
-        {
-			// Write it to memory
-            u32 CopySize = (u32)pFile->GetSize() - 0x820;
-            u8* pData = pFile->Lock(0x820, CopySize);
-            Memory::WriteBigEData(pData, 0x81300000, CopySize);
-            pFile->Unlock(pData);
-            pFile->Close();
+	std::string data;
+	if (!File::ReadFileToString(false, _rBiosFilename.c_str(), data))
+		return false;
 
-            PC = 0x81300000;
-
-            bResult = true;
-        }
-    }
-    delete pFile;
-    return bResult;
+	Memory::WriteBigEData((const u8*)data.data(), 0x81300000, data.size());
+    PC = 0x81300000;
+    return true;
 }
 /////////////////////////////////