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-rw-r--r--src/mame/drivers/mappy.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/mappy.cpp b/src/mame/drivers/mappy.cpp
index f41d55efb89..d3b62a7774f 100644
--- a/src/mame/drivers/mappy.cpp
+++ b/src/mame/drivers/mappy.cpp
@@ -2064,7 +2064,9 @@ void mappy_state::init_grobda()
However, removing the 15XX from the board causes sound to disappear completely, so
the 15XX may still play some part in conveying speech to the DAC.
*/
- m_subcpu->space(AS_PROGRAM).install_write_handler(0x0002, 0x0002, write8_delegate(FUNC(dac_byte_interface::data_w), (dac_byte_interface *)m_dac));
+ write8_delegate dac_w(*this);
+ dac_w.set(*m_dac, FUNC(dac_byte_interface::data_w));
+ m_subcpu->space(AS_PROGRAM).install_write_handler(0x0002, 0x0002, dac_w);
}