Core: Change to using fenv.h instead of including the code directly

Source/Common/Platform.cpp

@@ -13,31 +13,4 @@ int _vscprintf(const char * format, va_list pargs)
     va_end(argcopy);
     return retval;
 }
-#endif
-
-#ifdef _MSC_VER
-#include <float.h>
-
-int fesetround(int RoundType)
-{
-    static const unsigned int msRound[4] = {_RC_NEAR, _RC_CHOP, _RC_UP, _RC_DOWN};
-    int32_t res = _controlfp(msRound[RoundType], _MCW_RC);
-    if (res == _RC_NEAR)
-    {
-        return FE_TONEAREST;
-    }
-    if (res == _RC_CHOP)
-    {
-        return FE_TOWARDZERO;
-    }
-    if (res == _RC_UP)
-    {
-        return FE_UPWARD;
-    }
-    if (res == _RC_DOWN)
-    {
-        return FE_DOWNWARD;
-    }
-    return FE_TONEAREST;
-}
-#endif
+#endif

Source/Common/Platform.h

@@ -13,17 +13,3 @@
 int _vscprintf(const char * format, va_list pargs);
 
 #endif
-
-// FPU rounding code
-#ifdef _WIN32
-typedef enum
-{
-    FE_TONEAREST = 0,
-    FE_TOWARDZERO,
-    FE_UPWARD,
-    FE_DOWNWARD,
-} eRoundType;
-int fesetround(int RoundType);
-#else
-#include <fenv.h>
-#endif

Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp

@@ -10,6 +10,7 @@
 #include <Project64-core/N64System/Mips/TLB.h>
 #include <Project64-core/N64System/N64System.h>
 #include <Project64-core/N64System/SystemGlobals.h>
+#include <fenv.h>
 #include <float.h>
 #include <math.h>
 

Source/Project64-core/N64System/Mips/Register.cpp

@@ -4,6 +4,7 @@
 #include <Project64-core/N64System/Mips/Register.h>
 #include <Project64-core/N64System/N64System.h>
 #include <Project64-core/N64System/SystemGlobals.h>
+#include <fenv.h>
 
 const char * CRegName::GPR[32] = {
     "R0",

Source/Project64-core/N64System/Recompiler/x86/x86RecompilerOps.cpp

@@ -17,6 +17,7 @@
 #include <Project64-core/N64System/Recompiler/SectionInfo.h>
 #include <Project64-core/N64System/Recompiler/x86/x86RecompilerOps.h>
 #include <Project64-core/N64System/SystemGlobals.h>
+#include <fenv.h>
 #include <stdio.h>
 
 uint32_t CX86RecompilerOps::m_TempValue32 = 0;