diff -Nru srcold/emu/emumem.cpp src/emu/emumem.cpp
--- srcold/emu/emumem.cpp	2018-12-18 13:58:50.000000000 +0100
+++ src/emu/emumem.cpp	2018-12-19 09:31:34.962109500 +0100
@@ -864,6 +864,9 @@
 		for (auto const memory : memories)
 			memory->set_log_unmap(false);
 
+	// register a callback to reset banks when reloading state
+	machine().save().register_postload(save_prepost_delegate(FUNC(memory_manager::bank_reattach), this));
+
 	// we are now initialized
 	m_initialized = true;
 }
@@ -922,6 +925,14 @@
 	return nullptr;
 }
 
+void memory_manager::bank_reattach()
+{
+	// for each non-anonymous bank, explicitly reset its entry
+	for (auto &bank : m_banklist)
+		if (!bank.second->anonymous() && bank.second->entry() != -1)
+			bank.second->set_entry(bank.second->entry());
+}
+
 memory_bank *memory_manager::find(address_space &space, offs_t addrstart, offs_t addrend) const
 {
 	// try to find an exact match
diff -Nru srcold/emu/emumem.h src/emu/emumem.h
--- srcold/emu/emumem.h	2018-12-18 13:58:50.000000000 +0100
+++ src/emu/emumem.h	2018-12-19 09:23:20.403658600 +0100
@@ -1786,6 +1786,7 @@
 	// construction/destruction
 	memory_manager(running_machine &machine);
 	void initialize();
+	void bank_reattach();
 
 	// getters
 	running_machine &machine() const { return m_machine; }