winport: add "Fast Fetch-Execute" to the menu, since r2844 brought some emulation glitches.

desmume/src/armcpu.cpp

@@ -495,6 +495,7 @@ armcpu_flagIrq( armcpu_t *armcpu) {
 }
 
 
+bool fastFetchExecute = true;
 template<int PROCNUM>
 u32 armcpu_exec()
 {
@@ -521,7 +522,7 @@ u32 armcpu_exec()
 	cFetch = armcpu_prefetch(&ARMPROC);
 
 	if (ARMPROC.stalled) {
-		return std::max(cFetch, cExecute);
+		return fastFetchExecute ? std::max(cFetch, cExecute) : (cFetch + cExecute);
 	}
 #endif
 
@@ -553,7 +554,7 @@ u32 armcpu_exec()
 #else
 		cFetch = armcpu_prefetch<PROCNUM>();
 #endif
-		return std::max(cFetch, cExecute);
+		return fastFetchExecute ? std::max(cFetch, cExecute) : (cFetch + cExecute);
 	}
 
 	if(PROCNUM==0)
@@ -569,7 +570,7 @@ u32 armcpu_exec()
 #else
 	cFetch = armcpu_prefetch<PROCNUM>();
 #endif
-	return std::max(cFetch, cExecute);
+	return fastFetchExecute ? std::max(cFetch, cExecute) : (cFetch + cExecute);
 }
 
 //these templates needed to be instantiated manually

desmume/src/windows/main.cpp

@@ -219,6 +219,8 @@ static bool lostFocusPause = true;
 static bool lastPauseFromLostFocus = false;
 static bool FrameLimit = true;
 
+extern bool fastFetchExecute; // from armcpu.cpp
+
 std::vector<HWND> LuaScriptHWnds;
 LRESULT CALLBACK LuaScriptProc(HWND, UINT, WPARAM, LPARAM);
 
@@ -3050,6 +3052,8 @@ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM
 			//Gray the recent ROM menu item if there are no recent ROMs
 			DesEnableMenuItem(mainMenu, ID_FILE_RECENTROM,      RecentRoms.size()>0);
 
+			DesEnableMenuItem(mainMenu, IDC_FASTFETCHEXECUTE,   movieMode == MOVIEMODE_INACTIVE);
+
 			//Updated Checked menu items
 			
 			//Pause
@@ -3121,8 +3125,8 @@ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM
 
 			MainWindow->checkMenu(IDC_STATEREWINDING, staterewindingenabled == 1 );
 
-			//Language selection
 			MainWindow->checkMenu(IDC_BACKGROUNDPAUSE, lostFocusPause);
+			MainWindow->checkMenu(IDC_FASTFETCHEXECUTE, fastFetchExecute);
 
 			//Save type
 			const int savelist[] = {IDC_SAVETYPE1,IDC_SAVETYPE2,IDC_SAVETYPE3,IDC_SAVETYPE4,IDC_SAVETYPE5,IDC_SAVETYPE6,IDC_SAVETYPE7};
@@ -4096,6 +4100,10 @@ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM
 			WritePrivateProfileInt("Focus", "BackgroundPause", (int)lostFocusPause, IniName);
 			return 0;
 
+		case IDC_FASTFETCHEXECUTE:
+			fastFetchExecute = !fastFetchExecute;
+			return 0;
+
 		case IDC_SAVETYPE1: backup_setManualBackupType(0); return 0;
 		case IDC_SAVETYPE2: backup_setManualBackupType(1); return 0;   
 		case IDC_SAVETYPE3: backup_setManualBackupType(2); return 0;   

desmume/src/windows/resource.h

@@ -812,6 +812,7 @@
 #define IDC_HKCOMBO                     60077
 #define IDD_KEYCUSTOM                   60078
 #define IDM_HOTKEY_CONFIG               60079
+#define IDC_FASTFETCHEXECUTE            60080
 
 // Next default values for new objects
 //