From aab954154f3d2ceba0c6ef3f4f49a9d1c66f48fd Mon Sep 17 00:00:00 2001
From: David Haywood <mamehaze@users.noreply.github.com>
Date: Mon, 25 Jan 2016 01:47:42 +0000
Subject: [PATCH] fix ts2068 regression (nw)

---
 src/mame/drivers/timex.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mame/drivers/timex.cpp b/src/mame/drivers/timex.cpp
index ee30790defb..64c03c69713 100644
--- a/src/mame/drivers/timex.cpp
+++ b/src/mame/drivers/timex.cpp
@@ -212,9 +212,13 @@ WRITE8_MEMBER( spectrum_state::ts2068_port_ff_w )
  *******************************************************************/
 void spectrum_state::ts2068_update_memory()
 {
-	UINT8 *messram = m_ram->pointer();
+	UINT8 *messram = nullptr;
+	if (m_ram) messram = m_ram->pointer();
 	address_space &space = m_maincpu->space(AS_PROGRAM);
-	UINT8 *DOCK = m_dock_crt->base();
+	UINT8 *DOCK = nullptr;
+	if (m_dock_crt) DOCK = m_dock_crt->base();
+
+
 	UINT8 *ExROM = memregion("maincpu")->base() + 0x014000;
 	UINT8 *ChosenROM;