Reorganize emu cpu directory

src/app/emu/cpu/clock.h

@@ -0,0 +1,63 @@
+#ifndef YAZE_APP_EMU_CLOCK_H_
+#define YAZE_APP_EMU_CLOCK_H_
+
+#include <cstdint>
+
+namespace yaze {
+namespace app {
+namespace emu {
+
+class Clock {
+ public:
+  virtual ~Clock() = default;
+  virtual void UpdateClock(double delta) = 0;
+  virtual unsigned long long GetCycleCount() const = 0;
+  virtual void ResetAccumulatedTime() = 0;
+  virtual void SetFrequency(float new_frequency) = 0;
+  virtual float GetFrequency() const = 0;
+};
+
+class ClockImpl : public Clock {
+ public:
+  ClockImpl() = default;
+  virtual ~ClockImpl() = default;
+
+  void UpdateCycleCount(double deltaTime) {
+    accumulatedTime += deltaTime;
+    double cycleTime = 1.0 / frequency;
+
+    while (accumulatedTime >= cycleTime) {
+      Cycle();
+      accumulatedTime -= cycleTime;
+    }
+  }
+
+  void Cycle() {
+    cycle++;
+    cycleCount++;
+  }
+
+  void UpdateClock(double delta) override {
+    UpdateCycleCount(delta);
+    ResetAccumulatedTime();
+  }
+
+  void ResetAccumulatedTime() override { accumulatedTime = 0.0; }
+  unsigned long long GetCycleCount() const override { return cycleCount; }
+  float GetFrequency() const override { return frequency; }
+  void SetFrequency(float new_frequency) override {
+    this->frequency = new_frequency;
+  }
+
+ private:
+  uint64_t cycle = 0;                 // Current cycle
+  float frequency = 0.0;              // Frequency of the clock in Hz
+  unsigned long long cycleCount = 0;  // Total number of cycles executed
+  double accumulatedTime = 0.0;  // Accumulated time since the last cycle update
+};
+
+}  // namespace emu
+}  // namespace app
+}  // namespace yaze
+
+#endif  // YAZE_APP_EMU_CLOCK_H_