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Diffstat (limited to 'src/mame/drivers/vic20.cpp')
-rw-r--r--src/mame/drivers/vic20.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/vic20.cpp b/src/mame/drivers/vic20.cpp
index 43dc17e7714..1b504f877af 100644
--- a/src/mame/drivers/vic20.cpp
+++ b/src/mame/drivers/vic20.cpp
@@ -681,7 +681,7 @@ static MACHINE_CONFIG_START( vic20, vic20_state )
MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, "joy")
MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(WRITELINE(vic20_state, write_light_pen))
- MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, vic20_user_port_cards, NULL)
+ MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, vic20_user_port_cards, nullptr)
MCFG_PET_USER_PORT_3_HANDLER(WRITELINE(vic20_state, exp_reset_w))
MCFG_PET_USER_PORT_4_HANDLER(WRITELINE(vic20_state, write_user_joy0))
MCFG_PET_USER_PORT_5_HANDLER(WRITELINE(vic20_state, write_user_joy1))
@@ -730,7 +730,7 @@ static MACHINE_CONFIG_DERIVED( ntsc, vic20 )
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
// devices
- MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6560_CLOCK, vic20_expansion_cards, NULL)
+ MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6560_CLOCK, vic20_expansion_cards, nullptr)
MCFG_VIC20_EXPANSION_SLOT_IRQ_CALLBACK(INPUTLINE(M6502_TAG, M6502_IRQ_LINE))
MCFG_VIC20_EXPANSION_SLOT_NMI_CALLBACK(INPUTLINE(M6502_TAG, M6502_NMI_LINE))
MCFG_VIC20_EXPANSION_SLOT_RES_CALLBACK(WRITELINE(vic20_state, exp_reset_w))
@@ -760,7 +760,7 @@ static MACHINE_CONFIG_DERIVED( pal, vic20 )
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
// devices
- MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6561_CLOCK, vic20_expansion_cards, NULL)
+ MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6561_CLOCK, vic20_expansion_cards, nullptr)
MCFG_VIC20_EXPANSION_SLOT_IRQ_CALLBACK(INPUTLINE(M6502_TAG, M6502_IRQ_LINE))
MCFG_VIC20_EXPANSION_SLOT_NMI_CALLBACK(INPUTLINE(M6502_TAG, M6502_NMI_LINE))
MCFG_VIC20_EXPANSION_SLOT_RES_CALLBACK(WRITELINE(vic20_state, exp_reset_w))