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Diffstat (limited to 'src/mame/drivers/rmnimbus.cpp')
-rw-r--r--src/mame/drivers/rmnimbus.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/rmnimbus.cpp b/src/mame/drivers/rmnimbus.cpp
index 4df84e3d92a..52248450e84 100644
--- a/src/mame/drivers/rmnimbus.cpp
+++ b/src/mame/drivers/rmnimbus.cpp
@@ -166,7 +166,7 @@ static MACHINE_CONFIG_START( nimbus, rmnimbus_state )
MCFG_RS232_PORT_ADD("rs232a", keyboard, "rmnkbd")
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rxa_w))
- MCFG_RS232_PORT_ADD("rs232b", default_rs232_devices, NULL)
+ MCFG_RS232_PORT_ADD("rs232b", 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_RI_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rib_w))