core: Move common CPU core things to its own class.

src/core/core_cpu.cpp

@@ -0,0 +1,72 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#ifdef ARCHITECTURE_x86_64
+#include "core/arm/dynarmic/arm_dynarmic.h"
+#endif
+#include "core/arm/unicorn/arm_unicorn.h"
+#include "core/core_cpu.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/scheduler.h"
+#include "core/hle/kernel/thread.h"
+#include "core/settings.h"
+
+namespace Core {
+
+Cpu::Cpu() {
+    if (Settings::values.use_cpu_jit) {
+#ifdef ARCHITECTURE_x86_64
+        arm_interface = std::make_shared<ARM_Dynarmic>();
+#else
+        cpu_core = std::make_shared<ARM_Unicorn>();
+        NGLOG_WARNING(Core, "CPU JIT requested, but Dynarmic not available");
+#endif
+    } else {
+        arm_interface = std::make_shared<ARM_Unicorn>();
+    }
+
+    scheduler = std::make_unique<Kernel::Scheduler>(arm_interface.get());
+}
+
+void Cpu::RunLoop(bool tight_loop) {
+    // If we don't have a currently active thread then don't execute instructions,
+    // instead advance to the next event and try to yield to the next thread
+    if (Kernel::GetCurrentThread() == nullptr) {
+        NGLOG_TRACE(Core, "Idling");
+        CoreTiming::Idle();
+        CoreTiming::Advance();
+        PrepareReschedule();
+    } else {
+        CoreTiming::Advance();
+        if (tight_loop) {
+            arm_interface->Run();
+        } else {
+            arm_interface->Step();
+        }
+    }
+
+    Reschedule();
+}
+
+void Cpu::SingleStep() {
+    return RunLoop(false);
+}
+
+void Cpu::PrepareReschedule() {
+    arm_interface->PrepareReschedule();
+    reschedule_pending = true;
+}
+
+void Cpu::Reschedule() {
+    if (!reschedule_pending) {
+        return;
+    }
+
+    reschedule_pending = false;
+    scheduler->Reschedule();
+}
+
+} // namespace Core