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-rw-r--r--src/devices/machine/im6402.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/devices/machine/im6402.h b/src/devices/machine/im6402.h
index 6908db0d9c6..7feb7fed1c2 100644
--- a/src/devices/machine/im6402.h
+++ b/src/devices/machine/im6402.h
@@ -87,6 +87,11 @@ public:
template <class Object> devcb_base &set_tbre_wr_callback(Object &&cb) { return m_write_tbre.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_tre_wr_callback(Object &&cb) { return m_write_tre.set_callback(std::forward<Object>(cb)); }
+ auto tro_callback() { return m_write_tro.bind(); }
+ auto dr_callback() { return m_write_dr.bind(); }
+ auto tbre_callback() { return m_write_tbre.bind(); }
+ auto tre_callback() { return m_write_tre.bind(); }
+
DECLARE_READ8_MEMBER( read ) { return m_rbr; }
DECLARE_WRITE8_MEMBER( write );