Massive refactoring of all code + audio skeleton.

This should make it easier to find files and (in the future) split things
up into separate libraries.
It also changes around emulator initialization to make it a little more
difficult to do things out of order and a little more sensible as to when
real init work happens.
Also adding a skeleton audio system/driver and reworking CPU register
access to be more extensible.

src/xenia/kernel/xboxkrnl/fs/devices/disc_image_device.h

@@ -0,0 +1,50 @@
+/**
+ ******************************************************************************
+ * 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_FS_DEVICES_DISC_IMAGE_DEVICE_H_
+#define XENIA_KERNEL_XBOXKRNL_FS_DEVICES_DISC_IMAGE_DEVICE_H_
+
+#include <xenia/common.h>
+#include <xenia/core.h>
+
+#include <xenia/kernel/xboxkrnl/fs/device.h>
+
+
+namespace xe {
+namespace kernel {
+namespace xboxkrnl {
+namespace fs {
+
+
+class GDFX;
+
+
+class DiscImageDevice : public Device {
+public:
+  DiscImageDevice(const char* path, const xechar_t* local_path);
+  virtual ~DiscImageDevice();
+
+  int Init();
+
+  virtual Entry* ResolvePath(const char* path);
+
+private:
+  xechar_t*   local_path_;
+  xe_mmap_ref mmap_;
+  GDFX*       gdfx_;
+};
+
+
+}  // namespace fs
+}  // namespace xboxkrnl
+}  // namespace kernel
+}  // namespace xe
+
+
+#endif  // XENIA_KERNEL_XBOXKRNL_FS_DEVICES_DISC_IMAGE_DEVICE_H_