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-rw-r--r--src/devices/machine/input_merger.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/machine/input_merger.h b/src/devices/machine/input_merger.h
index 39ad7324575..bd13d4f90de 100644
--- a/src/devices/machine/input_merger.h
+++ b/src/devices/machine/input_merger.h
@@ -25,8 +25,8 @@ public:
// input lines
template <unsigned Bit> DECLARE_WRITE_LINE_MEMBER(in_w) { static_assert(Bit < 32, "invalid bit"); m_update_state.synchronize((Bit << 1) | (state ? 1U : 0U)); }
- template <unsigned Bit> void in_set(u8 data) { in_w<Bit>(1); }
- template <unsigned Bit> void in_clear(u8 data) { in_w<Bit>(0); }
+ template <unsigned Bit> void in_set(u8 data = 0) { in_w<Bit>(1); }
+ template <unsigned Bit> void in_clear(u8 data = 0) { in_w<Bit>(0); }
protected:
// constructor/destructor