well, GX FIFO base. noting that for now, it doesn't do much beyond getting full real quick.

also make ROM loading fail gracefully if it shits itself, instead of entering an endless loop.

FIFO.h

@@ -47,7 +47,7 @@ public:
     }
 
 
-    void Write(u32 val)
+    void Write(T& val)
     {
         if (IsFull()) return;
 
@@ -60,9 +60,9 @@ public:
         NumOccupied++;
     }
 
-    T Read()
+    T& Read()
     {
-        T ret = Entries[ReadPos];
+        T& ret = Entries[ReadPos];
         if (IsEmpty())
             return ret;