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-rw-r--r--src/devices/cpu/hmcs40/hmcs40.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/cpu/hmcs40/hmcs40.cpp b/src/devices/cpu/hmcs40/hmcs40.cpp
index 36744d0a425..505856ef79c 100644
--- a/src/devices/cpu/hmcs40/hmcs40.cpp
+++ b/src/devices/cpu/hmcs40/hmcs40.cpp
@@ -251,6 +251,7 @@ void hmcs40_cpu_device::device_start()
// register for savestates
save_item(NAME(m_stack));
+ save_item(NAME(m_sp));
save_item(NAME(m_op));
save_item(NAME(m_prev_op));
save_item(NAME(m_i));