Processor breakpoint support

src/xenia/cpu/breakpoint.h

@@ -0,0 +1,49 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_CPU_BREAKPOINT_H_
+#define XENIA_CPU_BREAKPOINT_H_
+
+#include "xenia/cpu/processor.h"
+
+namespace xe {
+namespace cpu {
+
+class Breakpoint {
+ public:
+  Breakpoint(Processor* processor, uint32_t address,
+             std::function<void(uint32_t, uint64_t)> hit_callback);
+  ~Breakpoint();
+
+  uint32_t address() const { return address_; }
+  bool installed() const { return installed_; }
+
+  bool Install();
+  bool Uninstall();
+  void Hit(uint64_t host_pc) { hit_callback_(address_, host_pc); }
+
+  // CPU backend data. Implementation specific - DO NOT TOUCH THIS!
+  uint64_t backend_data() const { return backend_data_; }
+  void set_backend_data(uint64_t backend_data) { backend_data_ = backend_data; }
+
+ private:
+  Processor* processor_ = nullptr;
+
+  bool installed_ = false;
+  uint32_t address_ = 0;
+  std::function<void(uint32_t, uint64_t)> hit_callback_;
+
+  // Opaque backend data. Don't touch this.
+  uint64_t backend_data_ = 0;
+};
+
+}  // namespace cpu
+}  // namespace xe
+
+#endif  // XENIA_CPU_BREAKPOINT_H_