Initial Alloy implementation.

This is a regression in functionality and performance, but a much better
foundation for the future of the project (I think). It can run basic
apps under an SSA interpreter but doesn't support some of the features
required to do real 360 apps yet.

src/alloy/backend/ivm/ivm_function.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 ALLOY_BACKEND_IVM_IVM_FUNCTION_H_
+#define ALLOY_BACKEND_IVM_IVM_FUNCTION_H_
+
+#include <alloy/core.h>
+#include <alloy/backend/ivm/ivm_intcode.h>
+#include <alloy/runtime/function.h>
+#include <alloy/runtime/symbol_info.h>
+
+
+namespace alloy {
+namespace backend {
+namespace ivm {
+
+
+class IVMFunction : public runtime::GuestFunction {
+public:
+  IVMFunction(runtime::FunctionInfo* symbol_info);
+  virtual ~IVMFunction();
+
+  void Setup(TranslationContext& ctx);
+
+protected:
+  virtual int CallImpl(runtime::ThreadState* thread_state);
+
+private:
+
+private:
+  size_t    register_count_;
+  Register* constant_regiters_;
+  size_t    intcode_count_;
+  IntCode*  intcodes_;
+  // ... source_map_;
+};
+
+
+}  // namespace ivm
+}  // namespace backend
+}  // namespace alloy
+
+
+#endif  // ALLOY_BACKEND_IVM_IVM_FUNCTION_H_