Add support for changing FPU/VU roundmodes through database...

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3042 96395faa-99c1-11dd-bbfe-3dabce05a288

bin/GameIndex.dbf

@@ -17,6 +17,8 @@
 -- You can use c++ style 1-line comments (//) or (--)
 -- All comments must be written in this header or they will not be
 -- saved properly by pcsx2's database writer.
+-- For gamefixes/roundmodes/clampmodes, pcsx2 will use the current user
+-- settings if the game database does not explicitly change the values.
 
 ---------------------------------------------
 -- Compatibility Status (Compat = n)
@@ -39,6 +41,17 @@
 -- 2 = Positive Infinity
 -- 3 = Chop (Zero)
 
+---------------------------------------------
+-- Clamp Modes (eeClampMode = n and vuClampMode = n)
+---------------------------------------------
+-- The clamp modes are numerically based.
+-- eeClampMode refers to the EE's FPU co-processor
+-- vuClampMode refers to the VU's and COP2
+-- 0 = Disables clamping completely
+-- 1 = Clamp Normally (only clamp results)
+-- 2 = Clamp Extra (clamp results as well as operands)
+-- 3 = Full Clamping for FPU / Extra+Preserve Sign Clamping for VU
+
 ---------------------------------------------
 -- Game Fixes (gameFixName = 1)
 ---------------------------------------------

pcsx2/Config.h

@@ -541,6 +541,7 @@ struct Pcsx2Config
 extern const Pcsx2Config EmuConfig;
 
 Pcsx2Config::GSOptions&			SetGSConfig();
+Pcsx2Config::RecompilerOptions& SetRecompilerConfig();
 Pcsx2Config::GamefixOptions&	SetGameFixConfig();
 ConsoleLogFilters&				SetConsoleConfig();
 TraceLogFilters&				SetTraceConfig();

pcsx2/DataBase_Loader.h

@@ -393,9 +393,23 @@ static void loadGameSettings(DataBase_Loader* gameDB) {
 		if (gameDB->keyExists("eeRoundMode")) { eeRM = gameDB->getInt("eeRoundMode"); rm=1; }
 		if (gameDB->keyExists("vuRoundMode")) { vuRM = gameDB->getInt("vuRoundMode"); rm=1; }
 		if (rm && eeRM<4 && vuRM<4) { 
-			Console.WriteLn("Game DataBase: Changing roundmodes!");
+			Console.WriteLn("Game DataBase: Changing roundmodes! [ee=%d] [vu=%d]", eeRM, vuRM);
 			SetCPUState(eeMX.SetRoundMode((SSE_RoundMode)eeRM), vuMX.SetRoundMode((SSE_RoundMode)vuRM));
 		}
+		if (gameDB->keyExists("eeClampMode")) {
+			int clampMode = gameDB->getInt("eeClampMode");
+			Console.WriteLn("Game DataBase: Changing EE/FPU clamp mode [mode=%d]", clampMode);
+			SetRecompilerConfig().fpuOverflow		= clampMode >= 1;
+			SetRecompilerConfig().fpuExtraOverflow	= clampMode >= 2;
+			SetRecompilerConfig().fpuFullMode		= clampMode >= 3;
+		}
+		if (gameDB->keyExists("vuClampMode")) {
+			int clampMode = gameDB->getInt("vuClampMode");
+			Console.WriteLn("Game DataBase: Changing VU0/VU1 clamp mode [mode=%d]", clampMode);
+			SetRecompilerConfig().vuOverflow		= clampMode >= 1;
+			SetRecompilerConfig().vuExtraOverflow	= clampMode >= 2;
+			SetRecompilerConfig().vuSignOverflow	= clampMode >= 3;
+		}
 		checkGamefix(VuAddSubHack);
 		checkGamefix(VuClipFlagHack);
 		checkGamefix(FpuCompareHack);

pcsx2/System.cpp

@@ -68,6 +68,15 @@ Pcsx2Config::GSOptions& SetGSConfig()
 	return const_cast<Pcsx2Config::GSOptions&>(EmuConfig.GS);
 }
 
+// Provides an accessor for quick modification of Recompiler options.
+// Used by loadGameSettings() to set clamp modes via database at game startup.
+Pcsx2Config::RecompilerOptions& SetRecompilerConfig()
+{
+	//DbgCon.WriteLn( "Direct modification of EmuConfig.Gamefixes detected" );
+	AffinityAssert_AllowFrom_MainUI();
+	return const_cast<Pcsx2Config::RecompilerOptions&>(EmuConfig.Cpu.Recompiler);
+}
+
 // Provides an accessor for quick modification of Gamefix options.
 // Used by loadGameSettings() to set gamefixes via database at game startup.
 Pcsx2Config::GamefixOptions& SetGameFixConfig()

pcsx2/x86/microVU_Upper.inl

@@ -26,7 +26,6 @@
 // Note: If modXYZW is true, then it adjusts XYZW for Single Scalar operations
 static void mVUupdateFlags(mV, int reg, int regT1 = -1, int regT2 = -1, bool modXYZW = 1) {
 	int sReg, mReg = gprT1, regT1b = 0, regT2b = 0;
-	//int xyzw = _X_Y_Z_W;	// unused local, still needed? -- air
 	static const u16 flipMask[16] = {0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15};
 
 	//SysPrintf("Status = %d; Mac = %d\n", sFLAG.doFlag, mFLAG.doFlag);