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-rw-r--r--src/mame/drivers/othello.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/othello.cpp b/src/mame/drivers/othello.cpp
index 5514da5af93..b0790562582 100644
--- a/src/mame/drivers/othello.cpp
+++ b/src/mame/drivers/othello.cpp
@@ -411,7 +411,7 @@ MACHINE_CONFIG_START(othello_state::othello)
MCFG_DEVICE_IO_MAP(audio_portmap)
MCFG_DEVICE_ADD(m_n7751, N7751, XTAL(6'000'000))
- MCFG_MCS48_PORT_T1_IN_CB(GND) // labelled as "TEST", connected to ground
+ MCFG_MCS48_PORT_T1_IN_CB(CONSTANT(0)) // labelled as "TEST", connected to ground
MCFG_MCS48_PORT_P2_IN_CB(READ8(*this, othello_state, n7751_command_r))
MCFG_MCS48_PORT_BUS_IN_CB(READ8(*this, othello_state, n7751_rom_r))
MCFG_MCS48_PORT_P1_OUT_CB(WRITE8("dac", dac_byte_interface, data_w))