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-rw-r--r--src/devices/machine/i8255.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/devices/machine/i8255.h b/src/devices/machine/i8255.h
index 76753ba4c47..73dedb92712 100644
--- a/src/devices/machine/i8255.h
+++ b/src/devices/machine/i8255.h
@@ -53,6 +53,8 @@ public:
auto out_pa_callback() { return m_out_pa_cb.bind(); }
auto out_pb_callback() { return m_out_pb_cb.bind(); }
auto out_pc_callback() { return m_out_pc_cb.bind(); }
+
+ // output state when pins are in tri-state, default 0xff
auto tri_pa_callback() { return m_tri_pa_cb.bind(); }
auto tri_pb_callback() { return m_tri_pb_cb.bind(); }