Backup media detection tool: improve speed & ignore if running non-GBA

git-svn-id: https://svn.code.sf.net/p/vbam/code/trunk@896 a31d4220-a93d-0410-bf67-fe4944624d44

src/win32/MainWndOptions.cpp

@@ -786,21 +786,32 @@ void MainWnd::OnUpdateOptionsEmulatorSavetypeFlash1m(CCmdUI* pCmdUI)
 
 void MainWnd::OnOptionsEmulatorSavetypeDetectNow()
 {
+    if( theApp.cartridgeType != IMAGE_GBA ) return;
     const int address_max = theApp.romSize - 10;
     char temp[11]; temp[10] = '\0';
     CString answer( _T( "This cartridge has probably no backup media." ) );
 
     for( int address = 0; address < address_max; address += 4 ) {
-        memcpy( temp, &rom[address], 10 );
+        const u8 check = rom[address];
 
+        if( 'E' == check ) {
+            memcpy( temp, &rom[address], 10 );
             if( 0 == strncmp( temp, "EEPROM_V", 8 ) ) {
                 answer = _T( "This cartridge uses EEPROM." );
                 break;
             }
+        }
+
+        if( 'S' == check ) {
+            memcpy( temp, &rom[address], 10 );
             if( 0 == strncmp( temp, "SRAM_V", 6 ) ) {
                 answer = _T( "This cartridge uses SRAM." );
                 break;
             }
+        }
+
+        if( 'F' == check ) {
+            memcpy( temp, &rom[address], 10 );
             if( ( 0 == strncmp( temp, "FLASH_V", 7 ) ) || ( 0 == strncmp( temp, "FLASH512_V", 10 ) ) ) {
                 answer = _T( "This cartridge uses FLASH (64 KiB)." );
                 break;
@@ -810,6 +821,7 @@ void MainWnd::OnOptionsEmulatorSavetypeDetectNow()
                 break;
             }
         }
+    }
 
     MessageBox( answer );
 }