Disableable link support

Enable separate SRAM and VBA.INI profile for multiple instances

src/GBA.cpp

@@ -2998,22 +2998,30 @@ void CPUUpdateRegister(u32 address, u16 value)
     cpuNextEvent = cpuTotalTicks;
     break;
   case 0x128:
-    StartLink(value);	// Link
+	if (linkenable)
-/*    if(value & 0x80) {
+	{
-      value &= 0xff7f;
+		StartLink(value);
-      if(value & 1 && (value & 0x4000)) {
+	}
-        UPDATE_REG(0x12a, 0xFF);
+	else
-        IF |= 0x80;
+	{
-        UPDATE_REG(0x202, IF);
+		if(value & 0x80) {
-        value &= 0x7f7f;
+		  value &= 0xff7f;
-      }
+		  if(value & 1 && (value & 0x4000)) {
-    }
+			UPDATE_REG(0x12a, 0xFF);
-    UPDATE_REG(0x128, value);*/
+			IF |= 0x80;
+			UPDATE_REG(0x202, IF);
+			value &= 0x7f7f;
+		  }
+		}
+	    UPDATE_REG(0x128, value);
+	}
     break;
  case 0x12a:
-	  if(lspeed)
+	  if(linkenable && lspeed)
+	  {
 		LinkSSend(value);
-	  UPDATE_REG(0x12a, value);
+		UPDATE_REG(0x134, value);
+	  }
 	  break; 
   case 0x130:
     P1 |= (value & 0x3FF);
@@ -3022,14 +3030,20 @@ void CPUUpdateRegister(u32 address, u16 value)
   case 0x132:
     UPDATE_REG(0x132, value & 0xC3FF);
     break;
-	/*  breaks sonic games
   case 0x134:
-	StartGPLink(value);
+	if (linkenable)
-	break;*/
+		StartGPLink(value);
-  case 0x140:
+	else
-	StartJOYLink(value);
+	    UPDATE_REG(0x134, value);
-	break;
 
+	break;
+  case 0x140:
+	if (linkenable)
+		StartJOYLink(value);
+	else
+	    UPDATE_REG(0x140, value);
+
+	break;
   case 0x200:
     IE = value & 0x3FFF;
     UPDATE_REG(0x200, IE);
@@ -3858,7 +3872,7 @@ void CPULoop(int ticks)
   int timerOverflow = 0;
   // variable used by the CPU core
   cpuTotalTicks = 0;
-  // if(cpuDmaHack2)
+  if(linkenable && cpuDmaHack2)
     cpuNextEvent = 1;
   cpuBreakLoop = false;
   cpuNextEvent = CPUUpdateTicks();
@@ -4323,10 +4337,9 @@ void CPULoop(int ticks)
 #endif
 
       ticks -= clockTicks;
-	  /* Link 
+	
-----------------------------------*/		
+	  if (linkenable)
-	  LinkUpdate(clockTicks);
+		  LinkUpdate(clockTicks);
-/* ----------------------------- */
 
       cpuNextEvent = CPUUpdateTicks();
       
@@ -4342,8 +4355,8 @@ void CPULoop(int ticks)
         goto updateLoop;
       }
 
-//	  if(cpuDmaHack2)
+	  if(linkenable && cpuDmaHack2)
-  //	       cpuNextEvent = 1;
+  	       cpuNextEvent = 1;
 
       if(IF && (IME & 1) && armIrqEnable) {
         int res = IF & IE;

src/GBAinline.h

@@ -29,6 +29,7 @@ extern bool cpuFlashEnabled;
 extern bool cpuEEPROMEnabled;
 extern bool cpuEEPROMSensorEnabled;
 extern int lspeed;
+extern bool linkenable;
 extern void LinkSStop(void);
 extern bool cpuDmaHack;
 extern bool cpuDmaHack2;
@@ -93,7 +94,7 @@ static inline u32 CPUReadMemory(u32 address)
     value = READ32LE(((u32 *)&internalRAM[address & 0x7ffC]));
     break;
   case 4:
-    	  if((address>=0x4000120||address<=0x4000126)&&lspeed)
+   	  if(linkenable && (address>=0x4000120||address<=0x4000126)&&lspeed)
 		  LinkSStop();
     if((address < 0x4000400) && ioReadable[address & 0x3fc]) {
       if(ioReadable[(address & 0x3fc) + 2])
@@ -218,7 +219,7 @@ static inline u32 CPUReadHalfWord(u32 address)
     value = READ16LE(((u16 *)&internalRAM[address & 0x7ffe]));
     break;
   case 4:
-if((address>=0x4000120||address<=0x4000126)&&lspeed)
+	if(linkenable && (address>=0x4000120||address<=0x4000126)&&lspeed)
 	  LinkSStop();
     if((address < 0x4000400) && ioReadable[address & 0x3fe])
     {
@@ -333,7 +334,7 @@ static inline u8 CPUReadByte(u32 address)
   case 3:
     return internalRAM[address & 0x7fff];
   case 4:
-   if((address>=0x4000120||address<=0x4000126)&&lspeed)
+   if(linkenable&&(address>=0x4000120||address<=0x4000126)&&lspeed)
 	  LinkSStop();
     if((address < 0x4000400) && ioReadable[address & 0x3ff])
       return ioMem[address & 0x3ff];

src/Link.cpp

@@ -37,10 +37,9 @@ int linktime = 0;
 u8 tspeed=3;
 u8 transfer=0;
 LINKDATA *linkmem=NULL;
-int linkid = 1, vbaid = 1;
+int linkid = 0, vbaid = 0;
 HANDLE linksync[4];
 int savedlinktime=0;
-char inifile[] = "vba1.ini";
 HANDLE mmf=NULL;
 char linkevent[] = "VBA link event  ";
 static int i, j;
@@ -54,6 +53,7 @@ lserver ls;
 lclient lc;
 bool oncewait = false, after = false;
 bool adapter = false;
+bool linkenable = false;
 u8 rfu_cmd, rfu_qsend, rfu_qrecv;
 int rfu_state, rfu_polarity, linktime2, counter, rfu_masterq;
 int transferend, numtransfers = 0;
@@ -72,6 +72,22 @@ int StartServer(void);
 int GetSioMode(u16, u16);
 u16 StartRFU(u16);
 
+char *MakeInstanceFilename(const char *Input)
+{
+	if (vbaid == 0)
+		return (char *)Input;
+
+	static char *result=NULL;
+	if (result!=NULL)
+		free(result);
+	
+	result = (char *)malloc(strlen(Input)+3); 
+	char *p = strrchr((char *)Input, '.');
+	sprintf(result, "%.*s-%d.%s", (int)(p-Input), Input, vbaid+1, p+1); 
+	return result;
+}
+
+
 void StartLink(WORD value){
 	if(ioMem==NULL)	return;
 		if(adapter){
@@ -160,6 +176,8 @@ void StartGPLink(u16 value){
 			else if(!adapter) fprintf(linklogfile, "Attempt to use General-purpose mode %04x\n", value);
 		}
 		if(adapter) rfu_state = RFU_INIT;
+		// This was not there, but sonic games won't start if it's not here.
+		UPDATE_REG(0x134, value);
 		break;
 	case JOYBUS:
 		UPDATE_REG(0x134, value);
@@ -549,7 +567,6 @@ int InitLink(void){
 	BOOL disable = true;
 
 	linkid = 0;
-	inifile[3]='1';
 	
 	if(WSAStartup(MAKEWORD(1,1), &wsadata)!=0){
 		WSACleanup();
@@ -588,7 +605,6 @@ int InitLink(void){
 		vbaid = 0;
 
 	if(vbaid==0){
-		inifile[3]='1';
 		linkid = 0;
 		if(linkmem->linkflags&LINK_PARENTLOST){
 			linkmem->numgbas++;
@@ -615,6 +631,7 @@ int InitLink(void){
 		vbaid=linkmem->numgbas;
 		linkid = vbaid;
 		linkmem->numgbas++;
+
 		linklog = 0;
 		if(linkmem->numgbas>4){
 			linkmem->numgbas=4;
@@ -625,7 +642,6 @@ int InitLink(void){
 			CloseHandle(mmf);
 			return 0;
 		}
-		inifile[3]=(char)linkmem->numgbas+'0';
 		for(i=0;i<4;i++){
 			linkevent[15]=(char)i+'1';
 			if((linksync[i]=OpenEvent(EVENT_ALL_ACCESS, false, linkevent))==NULL){

src/Link.h

@@ -109,12 +109,14 @@ extern void LinkChildSend(u16);
 extern int openLinkLog(void);
 extern void closeLinkLog();
 extern void CloseLanLink(void);
+extern char *MakeInstanceFilename(const char *Input);
 
 extern LANLINKDATA lanlink;
 extern FILE *linklogfile;
 extern int vbaid;
 extern int linklog;
 extern bool adapter;
+extern bool linkenable;
 extern int linktimeout;
 extern lclient lc;
 extern int linkid;

src/win32/MainWnd.cpp

@@ -43,6 +43,7 @@
 #include "../RTC.h"
 #include "../Sound.h"
 #include "../Util.h"
+#include "../Link.h"
 
 #ifdef _DEBUG
 #define new DEBUG_NEW
@@ -386,6 +387,9 @@ BEGIN_MESSAGE_MAP(MainWnd, CWnd)
 	ON_UPDATE_COMMAND_UI(ID_OPTIONS_LINK_LOG, OnUpdateOptionsLinkLog)
 	ON_COMMAND(ID_OPTIONS_LINK_WIRELESSADAPTER, OnOptionsLinkRFU)
 	ON_UPDATE_COMMAND_UI(ID_OPTIONS_LINK_WIRELESSADAPTER, OnUpdateOptionsLinkRFU)
+	ON_COMMAND(ID_OPTIONS_LINK_ENABLE, OnOptionsLinkEnable)
+	ON_UPDATE_COMMAND_UI(ID_OPTIONS_LINK_ENABLE, OnUpdateOptionsLinkEnable)
+
 	//}}AFX_MSG_MAP
   ON_COMMAND_EX_RANGE(ID_FILE_MRU_FILE1, ID_FILE_MRU_FILE10, OnFileRecentFile)
   ON_COMMAND_EX_RANGE(ID_FILE_LOADGAME_SLOT1, ID_FILE_LOADGAME_SLOT10, OnFileLoadSlot)
@@ -932,7 +936,7 @@ void MainWnd::writeBatteryFile()
     filename.Format("%s\\%s.sav", saveDir, buffer);
 
   if(theApp.emulator.emuWriteBattery)
-    theApp.emulator.emuWriteBattery(filename);
+    theApp.emulator.emuWriteBattery(MakeInstanceFilename((const char *)filename));
 }
 
 
@@ -971,7 +975,7 @@ void MainWnd::readBatteryFile()
   bool res = false;
 
   if(theApp.emulator.emuReadBattery)
-    res = theApp.emulator.emuReadBattery(filename);
+    res = theApp.emulator.emuReadBattery(MakeInstanceFilename(filename));
 
   if(res)
     systemScreenMessage(winResLoadString(IDS_LOADED_BATTERY));

src/win32/MainWnd.h

@@ -433,12 +433,13 @@ public:
 	afx_msg void OnOptionsVideoFullscreen1024x768();
 	afx_msg void OnUpdateOptionsVideoFullscreen1024x768(CCmdUI *pCmdUI);
 	afx_msg void OnUpdateOptionsVideoFullscreen1280x1024(CCmdUI *pCmdUI);
-     void OnLinkOptions();
+    afx_msg void OnLinkOptions();
-	 void OnOptionsLinkLog() ;
+	afx_msg void OnOptionsLinkLog() ;
-	 void OnUpdateOptionsLinkLog(CCmdUI* pCmdUI) ;
+	afx_msg void OnUpdateOptionsLinkLog(CCmdUI* pCmdUI) ;
-	 void OnOptionsLinkRFU() ;
+	afx_msg void OnOptionsLinkRFU() ;
-	 void OnUpdateOptionsLinkRFU(CCmdUI* pCmdUI) ;
+	afx_msg void OnUpdateOptionsLinkRFU(CCmdUI* pCmdUI) ;
-
+	afx_msg void OnOptionsLinkEnable() ;
+	afx_msg void OnUpdateOptionsLinkEnable(CCmdUI* pCmdUI) ;
 };
 
 /////////////////////////////////////////////////////////////////////////////

src/win32/MainWndOptions.cpp

@@ -1905,6 +1905,16 @@ void MainWnd::OnOptionsLinkRFU()
 	}
 }
 
+void MainWnd::OnUpdateOptionsLinkEnable(CCmdUI* pCmdUI) 
+{
+	pCmdUI->SetCheck(linkenable);
+}
+
+void MainWnd::OnOptionsLinkEnable() 
+{
+	linkenable = !linkenable;
+}
+
 void MainWnd::OnUpdateOptionsLinkRFU(CCmdUI* pCmdUI) 
 {
 	pCmdUI->SetCheck(adapter);

src/win32/Reg.cpp

@@ -17,6 +17,7 @@
 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 #include "stdafx.h"
+#include "..\Link.h"
 
 static char buffer[2048];
 static HKEY vbKey = NULL;
@@ -43,7 +44,7 @@ void regInit(const char *path)
 	  regVbaPath = NULL;
   }
   regVbaPath = new CString();
-  regVbaPath->Format("%s\\vba.ini", path);
+  regVbaPath->Format(MakeInstanceFilename("%s\\vba.ini"), path);
 }
 
 void regShutdown()

src/win32/VBA.cpp

@@ -482,16 +482,16 @@ BOOL VBA::InitInstance()
   systemVerbose = GetPrivateProfileInt("config",
                                        "verbose",
                                        0,
-                                       "VBA.ini");
+                                       MakeInstanceFilename("VBA.ini"));
   
   systemDebug = GetPrivateProfileInt("config",
                                      "debug",
                                      0,
-                                     "VBA.ini");
+                                     MakeInstanceFilename("VBA.ini"));
   ddrawDebug = GetPrivateProfileInt("config",
                                     "ddrawDebug",
                                     0,
-                                    "VBA.ini") ? true : false;
+                                    MakeInstanceFilename("VBA.ini")) ? true : false;
 
   wndClass = AfxRegisterWndClass(0, LoadCursor(IDC_ARROW), (HBRUSH)GetStockObject(BLACK_BRUSH), LoadIcon(IDI_ICON));
   
@@ -1571,6 +1571,7 @@ void VBA::loadSettings()
 	  openLinkLog();
 	
   adapter = regQueryDwordValue("RFU", false) ? true : false;
+  linkenable = regQueryDwordValue("linkEnabled", false) ? true : false;
 	
   lanlink.active = regQueryDwordValue("LAN", 0) ? true : false;
   if (autoFrameSkip)
@@ -2421,6 +2422,7 @@ void VBA::saveSettings()
   regSetDwordValue("LinkTimeout", linktimeout);
   regSetDwordValue("Linklog", linklog);
   regSetDwordValue("RFU", adapter);
+  regSetDwordValue("linkEnabled", linkenable);
 }
 
 void winSignal(int, int)

src/win32/VBA.rc

@@ -1799,6 +1799,7 @@ BEGIN
         END
         POPUP "Li&nk"
         BEGIN
+            MENUITEM "Enable GBA Linking",          ID_OPTIONS_LINK_ENABLE
             MENUITEM "&Wireless Adapter",           ID_OPTIONS_LINK_WIRELESSADAPTER
             MENUITEM "&Log",                        ID_OPTIONS_LINK_LOG
             MENUITEM "&Options...",                 ID_OPTIONS_LINK_OPTIONS
@@ -1888,7 +1889,7 @@ BEGIN
     "N",            ID_DEBUG_NEXTFRAME,     VIRTKEY, CONTROL, NOINVERT
     "O",            ID_FILE_OPEN,           VIRTKEY, CONTROL, NOINVERT
     "P",            ID_FILE_PAUSE,          VIRTKEY, CONTROL, NOINVERT
-	VK_PAUSE,		ID_FILE_PAUSE,		    VIRTKEY, NOINVERT
+    VK_PAUSE,       ID_FILE_PAUSE,          VIRTKEY, NOINVERT
     "R",            ID_FILE_RESET,          VIRTKEY, CONTROL, NOINVERT
     "S",            ID_FILE_SAVE,           VIRTKEY, CONTROL, NOINVERT
     VK_ESCAPE,      ID_FILE_TOGGLEMENU,     VIRTKEY, NOINVERT

src/win32/resource.h

@@ -796,13 +796,14 @@
 #define ID_OPTIONS_EMULATOR_REMOVEINTROSGBA 40331
 #define ID_Menu                         40332
 #define ID_OPTIONS_VIDEO_RENDEROPTIONS_GLANISOTROPIC 40333
+#define ID_OPTIONS_LINK_ENABLE 40335
 
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        159
-#define _APS_NEXT_COMMAND_VALUE         40334
+#define _APS_NEXT_COMMAND_VALUE         40336
 #define _APS_NEXT_CONTROL_VALUE         1269
 #define _APS_NEXT_SYMED_VALUE           103
 #endif