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-rw-r--r--src/devices/machine/smpc.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/devices/machine/smpc.cpp b/src/devices/machine/smpc.cpp
index 6b2c9f8a733..1b4f36afb2d 100644
--- a/src/devices/machine/smpc.cpp
+++ b/src/devices/machine/smpc.cpp
@@ -315,9 +315,12 @@ void smpc_hle_device::device_start()
m_rtc_data[4] = DectoBCD(systime.local_time.hour);
m_rtc_data[5] = DectoBCD(systime.local_time.minute);
m_rtc_data[6] = DectoBCD(systime.local_time.second);
-
- m_ctrl1 = downcast<saturn_control_port_device *>(machine().device(m_ctrl1_tag));
- m_ctrl2 = downcast<saturn_control_port_device *>(machine().device(m_ctrl2_tag));
+
+ if (m_has_ctrl_ports)
+ {
+ m_ctrl1 = downcast<saturn_control_port_device *>(machine().device(m_ctrl1_tag));
+ m_ctrl2 = downcast<saturn_control_port_device *>(machine().device(m_ctrl2_tag));
+ }
// m_has_ctrl_ports = (m_ctrl1 != nullptr && m_ctrl2 != nullptr);
}