explicitly eject the cart before a load with reset, preventing a spurious cart-eject IRQ on startup

also fix possible KEY1 issues when using internal BIOS

src/NDSCart.cpp

@@ -137,6 +137,8 @@ void Key1_LoadKeyBuf(bool dsi)
     // it is possible that this gets called before the BIOSes are loaded
     // so we will read from the BIOS files directly
 
+    if (Platform::GetConfigBool(Platform::ExternalBIOSEnable))
+    {
         std::string path = Platform::GetConfigString(dsi ? Platform::DSi_BIOS7Path : Platform::BIOS7Path);
         FILE* f = Platform::OpenLocalFile(path, "rb");
         if (f)
@@ -146,6 +148,12 @@ void Key1_LoadKeyBuf(bool dsi)
             fclose(f);
         }
     }
+    else
+    {
+        // well
+        memset(Key1_KeyBuf, 0, 0x1048);
+    }
+}
 
 void Key1_InitKeycode(bool dsi, u32 idcode, u32 level, u32 mod)
 {

src/frontend/qt_sdl/ROMManager.cpp

@@ -535,6 +535,7 @@ bool LoadROM(QStringList filepath, bool reset)
     if (reset)
     {
         NDS::SetConsoleType(Config::ConsoleType);
+        NDS::EjectCart();
         NDS::Reset();
     }