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-rw-r--r--src/devices/machine/mm74c922.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/machine/mm74c922.h b/src/devices/machine/mm74c922.h
index cd419f61074..01ada83c743 100644
--- a/src/devices/machine/mm74c922.h
+++ b/src/devices/machine/mm74c922.h
@@ -86,6 +86,7 @@ private:
int m_y; // latched row
uint8_t m_data; // data latch
+ uint8_t m_next_data; // next value of data latch
bool m_da; // data available flag
bool m_next_da; // next value of data available flag