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Diffstat (limited to 'src/mame/drivers/bw12.cpp')
-rw-r--r--src/mame/drivers/bw12.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/bw12.cpp b/src/mame/drivers/bw12.cpp
index 20234365c0f..3f2db33ab16 100644
--- a/src/mame/drivers/bw12.cpp
+++ b/src/mame/drivers/bw12.cpp
@@ -608,12 +608,12 @@ static MACHINE_CONFIG_START( common, bw12_state )
MCFG_AY3600_CONTROL_CB(READLINE(bw12_state, ay3600_control_r))
MCFG_AY3600_DATA_READY_CB(WRITELINE(bw12_state, ay3600_data_ready_w))
- MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, NULL)
+ MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rxa_w))
MCFG_RS232_DCD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, dcda_w))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, ctsa_w))
- MCFG_RS232_PORT_ADD(RS232_B_TAG, default_rs232_devices, NULL)
+ MCFG_RS232_PORT_ADD(RS232_B_TAG, default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rxb_w))
MCFG_RS232_DCD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, dcdb_w))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, ctsb_w))