core: cpu_manager: Fix a typo in PreemptSingleCore, which broke many games.

- We were reload'ing the old current scheduler, which may have changed.

src/core/cpu_manager.cpp

@@ -254,8 +254,8 @@ void CpuManager::SingleCoreRunSuspendThread() {
 }
 
 void CpuManager::PreemptSingleCore(bool from_running_enviroment) {
-    std::size_t old_core = current_core;
+    {
-    auto& scheduler = system.Kernel().Scheduler(old_core);
+        auto& scheduler = system.Kernel().Scheduler(current_core);
         Kernel::Thread* current_thread = scheduler.GetCurrentThread();
         if (idle_count >= 4 || from_running_enviroment) {
             if (!from_running_enviroment) {
@@ -269,16 +269,21 @@ void CpuManager::PreemptSingleCore(bool from_running_enviroment) {
         current_core.store((current_core + 1) % Core::Hardware::NUM_CPU_CORES);
         system.CoreTiming().ResetTicks();
         scheduler.Unload(scheduler.GetCurrentThread());
+
         auto& next_scheduler = system.Kernel().Scheduler(current_core);
         Common::Fiber::YieldTo(current_thread->GetHostContext(), next_scheduler.ControlContext());
-    /// May have changed scheduler
+    }
-    auto& current_scheduler = system.Kernel().Scheduler(current_core);
+
-    current_scheduler.Reload(scheduler.GetCurrentThread());
+    // May have changed scheduler
-    auto* currrent_thread2 = current_scheduler.GetCurrentThread();
+    {
+        auto& scheduler = system.Kernel().Scheduler(current_core);
+        scheduler.Reload(scheduler.GetCurrentThread());
+        auto* currrent_thread2 = scheduler.GetCurrentThread();
         if (!currrent_thread2->IsIdleThread()) {
             idle_count = 0;
         }
     }
+}
 
 void CpuManager::SingleCorePause(bool paused) {
     if (!paused) {