Start of DPCs. Queuing them, but not yet dispatching.

src/xenia/kernel/native_list.h

@@ -0,0 +1,55 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_XBOXKRNL_NATIVE_LIST_H_
+#define XENIA_KERNEL_XBOXKRNL_NATIVE_LIST_H_
+
+#include <xenia/common.h>
+#include <xenia/core.h>
+
+#include <xenia/xbox.h>
+
+
+namespace xe {
+namespace kernel {
+
+
+// List is designed for storing pointers to objects in the guest heap.
+// All values in the list should be assumed to be in big endian.
+
+// Entries, as kernel objects, are assumed to have a LIST_ENTRY struct at +4b.
+// struct MYOBJ {
+//   uint32_t stuff;
+//   LIST_ENTRY list_entry; <-- manipulated
+//   ...
+// }
+
+class NativeList {
+public:
+  NativeList(Memory* memory);
+
+  void Insert(uint32_t ptr);
+  bool IsQueued(uint32_t ptr);
+  void Remove(uint32_t ptr);
+  uint32_t Shift();
+
+private:
+  const uint32_t kInvalidPointer = 0xE0FE0FFF;
+
+private:
+  Memory* memory_;
+  uint32_t head_;
+};
+
+
+}  // namespace kernel
+}  // namespace xe
+
+
+#endif  // XENIA_KERNEL_XBOXKRNL_NATIVE_LIST_H_