Support assignment of values

include/PSX/System/IOPorts/ioport.hpp

@@ -21,9 +21,17 @@ namespace JabyEngine {
     #define __declare_io_type(name, type, ...) \
         template<template<typename> typename T> \
         struct name##_io_base { \
-            T<type>::Value value; \
+            T<type>::Value raw_value; \
             \
+            name##_io_base(type value) : raw_value(value) {} \
             __VA_ARGS__ \
+            \
+            void operator=(type value) { \
+                this->raw_value = value; \
+            } \
+            type operator*() const { \
+                return this->raw_value; \
+            } \
         }
 
     template<typename T>