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/xam/xam_info.cc

@@ -0,0 +1,77 @@
+/**
+ ******************************************************************************
+ * 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. *
+ ******************************************************************************
+ */
+
+#include <xenia/kernel/xam/xam_info.h>
+
+#include <xenia/kernel/shim_utils.h>
+#include <xenia/kernel/xex2.h>
+#include <xenia/kernel/xam/xam_private.h>
+#include <xenia/kernel/xam/xam_state.h>
+
+
+using namespace xe;
+using namespace xe::kernel;
+using namespace xe::kernel::xam;
+
+
+namespace xe {
+namespace kernel {
+namespace xam {
+
+
+SHIM_CALL XGetAVPack_shim(
+    xe_ppc_state_t* ppc_state, XamState* state) {
+  // DWORD
+  // Not sure what the values are for this, but 6 is VGA.
+  // Other likely values are 3/4/8 for HDMI or something.
+  // Games seem to use this as a PAL check - if the result is not 3/4/6/8
+  // they explode with errors if not in PAL mode.
+  SHIM_SET_RETURN(6);
+}
+
+
+SHIM_CALL XGetGameRegion_shim(
+    xe_ppc_state_t* ppc_state, XamState* state) {
+  XELOGD("XGetGameRegion()");
+
+  SHIM_SET_RETURN(XEX_REGION_ALL);
+}
+
+
+SHIM_CALL XGetLanguage_shim(
+    xe_ppc_state_t* ppc_state, XamState* state) {
+  XELOGD("XGetLanguage()");
+
+  uint32_t desired_language = X_LANGUAGE_ENGLISH;
+
+  // Switch the language based on game region.
+  // TODO(benvanik): pull from xex header.
+  uint32_t game_region = XEX_REGION_NTSCU;
+  if (game_region & XEX_REGION_NTSCU) {
+    desired_language = X_LANGUAGE_ENGLISH;
+  } else if (game_region & XEX_REGION_NTSCJ) {
+    desired_language = X_LANGUAGE_JAPANESE;
+  }
+  // Add more overrides?
+
+  SHIM_SET_RETURN(desired_language);
+}
+
+
+}  // namespace xam
+}  // namespace kernel
+}  // namespace xe
+
+
+void xe::kernel::xam::RegisterInfoExports(
+    ExportResolver* export_resolver, XamState* state) {
+  SHIM_SET_MAPPING("xam.xex", XGetAVPack, state);
+  SHIM_SET_MAPPING("xam.xex", XGetGameRegion, state);
+  SHIM_SET_MAPPING("xam.xex", XGetLanguage, state);
+}