Memory leak fixed.

dram/src/simulation/MemoryManager.cpp

@@ -75,6 +75,8 @@ gp* MemoryManager::allocate()
 
 void MemoryManager::free(gp* payload)
 {
+    unsigned char *dptr = payload->get_data_ptr();
+    delete[] dptr;
 	payload->reset(); //clears all extensions
 	freePayloads.push_back(payload);
 }