AddressOffset is only used when we use gem5.

If gem5 is not used the configuration field AddressOffset is set to zero
despite the value in the xml file.

DRAMSys/simulator/resources/configs/simulator/ddr3.xml

@@ -14,6 +14,6 @@
     <!-- Gem5 Related Configuration:
     In the memory controller file the storage mode should be set to Store
     E.g. the DRAM is located at 0x80000000 for gem5
-    <AddressOffset value = "214748364c8" />
+    <AddressOffset value = "2147483648" />
     -->
 </simconfig>

DRAMSys/simulator/src/controller/core/configuration/Configuration.cpp

@@ -192,7 +192,11 @@ void Configuration::setParameter(std::string name, std::string value)
         NumberOfDevicesOnDIMM = string2int(value);
     else if(name == "AddressOffset")
     {
+#ifdef DRAMSYS_GEM5
         AddressOffset = string2ull(value);
+#else
+        AddressOffset = 0;
+#endif
         cout << "Address Offset: " << AddressOffset << endl;
     }
     else if(name == "CheckTLM2Protocol")