summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/c64.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/c64.cpp')
-rw-r--r--src/mame/drivers/c64.cpp22
1 files changed, 11 insertions, 11 deletions
diff --git a/src/mame/drivers/c64.cpp b/src/mame/drivers/c64.cpp
index bdbfb0ef1dc..5df87c29896 100644
--- a/src/mame/drivers/c64.cpp
+++ b/src/mame/drivers/c64.cpp
@@ -1051,7 +1051,7 @@ SLOT_INTERFACE_END
void c64_state::machine_start()
{
// get pointers to ROMs
- if (memregion("basic") != NULL)
+ if (memregion("basic") != nullptr)
{
m_basic = memregion("basic")->base();
m_kernal = memregion("kernal")->base();
@@ -1171,10 +1171,10 @@ static MACHINE_CONFIG_START( ntsc, c64_state )
MCFG_CBM_IEC_ADD("c1541")
MCFG_CBM_IEC_BUS_SRQ_CALLBACK(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, flag_w))
MCFG_CBM_IEC_BUS_ATN_CALLBACK(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_9))
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, NULL)
+ MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, nullptr)
MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(DEVWRITELINE(MOS6567_TAG, mos6567_device, lp_w))
MCFG_VCS_CONTROL_PORT_ADD(CONTROL2_TAG, vcs_control_port_devices, "joy")
- MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_14_31818MHz/14, c64_expansion_cards, NULL)
+ MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_14_31818MHz/14, c64_expansion_cards, nullptr)
MCFG_C64_EXPANSION_SLOT_IRQ_CALLBACK(WRITELINE(c64_state, exp_irq_w))
MCFG_C64_EXPANSION_SLOT_NMI_CALLBACK(WRITELINE(c64_state, exp_nmi_w))
MCFG_C64_EXPANSION_SLOT_RESET_CALLBACK(WRITELINE(c64_state, exp_reset_w))
@@ -1182,7 +1182,7 @@ static MACHINE_CONFIG_START( ntsc, c64_state )
MCFG_C64_EXPANSION_SLOT_CD_OUTPUT_CALLBACK(WRITE8(c64_state, write))
MCFG_C64_EXPANSION_SLOT_DMA_CALLBACK(WRITELINE(c64_state, exp_dma_w))
- MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, NULL)
+ MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, nullptr)
MCFG_PET_USER_PORT_3_HANDLER(WRITELINE(c64_state, exp_reset_w))
MCFG_PET_USER_PORT_4_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, cnt_w))
MCFG_PET_USER_PORT_5_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, sp_w))
@@ -1328,10 +1328,10 @@ static MACHINE_CONFIG_START( pal, c64_state )
MCFG_CBM_IEC_ADD("c1541")
MCFG_CBM_IEC_BUS_SRQ_CALLBACK(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, flag_w))
MCFG_CBM_IEC_BUS_ATN_CALLBACK(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_9))
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, NULL)
+ MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, nullptr)
MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(DEVWRITELINE(MOS6569_TAG, mos6569_device, lp_w))
MCFG_VCS_CONTROL_PORT_ADD(CONTROL2_TAG, vcs_control_port_devices, "joy")
- MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_17_734472MHz/18, c64_expansion_cards, NULL)
+ MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_17_734472MHz/18, c64_expansion_cards, nullptr)
MCFG_C64_EXPANSION_SLOT_IRQ_CALLBACK(WRITELINE(c64_state, exp_irq_w))
MCFG_C64_EXPANSION_SLOT_NMI_CALLBACK(WRITELINE(c64_state, exp_nmi_w))
MCFG_C64_EXPANSION_SLOT_RESET_CALLBACK(WRITELINE(c64_state, exp_reset_w))
@@ -1339,7 +1339,7 @@ static MACHINE_CONFIG_START( pal, c64_state )
MCFG_C64_EXPANSION_SLOT_CD_OUTPUT_CALLBACK(WRITE8(c64_state, write))
MCFG_C64_EXPANSION_SLOT_DMA_CALLBACK(WRITELINE(c64_state, exp_dma_w))
- MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, NULL)
+ MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, nullptr)
MCFG_PET_USER_PORT_3_HANDLER(WRITELINE(c64_state, exp_reset_w))
MCFG_PET_USER_PORT_4_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, cnt_w))
MCFG_PET_USER_PORT_5_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, sp_w))
@@ -1459,13 +1459,13 @@ static MACHINE_CONFIG_START( pal_gs, c64gs_state )
MCFG_MOS6526_PB_INPUT_CALLBACK(READ8(c64_state, cia2_pb_r))
MCFG_MOS6526_PB_OUTPUT_CALLBACK(WRITE8(c64_state, cia2_pb_w))
MCFG_MOS6526_PC_CALLBACK(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_8))
- MCFG_CBM_IEC_ADD(NULL)
+ MCFG_CBM_IEC_ADD(nullptr)
MCFG_CBM_IEC_BUS_SRQ_CALLBACK(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, flag_w))
MCFG_CBM_IEC_BUS_ATN_CALLBACK(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_9))
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, NULL)
+ MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, nullptr)
MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(DEVWRITELINE(MOS6569_TAG, mos6569_device, lp_w))
MCFG_VCS_CONTROL_PORT_ADD(CONTROL2_TAG, vcs_control_port_devices, "joy")
- MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_17_734472MHz/18, c64_expansion_cards, NULL)
+ MCFG_C64_EXPANSION_SLOT_ADD(C64_EXPANSION_SLOT_TAG, XTAL_17_734472MHz/18, c64_expansion_cards, nullptr)
MCFG_C64_EXPANSION_SLOT_IRQ_CALLBACK(WRITELINE(c64_state, exp_irq_w))
MCFG_C64_EXPANSION_SLOT_NMI_CALLBACK(WRITELINE(c64_state, exp_nmi_w))
MCFG_C64_EXPANSION_SLOT_RESET_CALLBACK(WRITELINE(c64_state, exp_reset_w))
@@ -1473,7 +1473,7 @@ static MACHINE_CONFIG_START( pal_gs, c64gs_state )
MCFG_C64_EXPANSION_SLOT_CD_OUTPUT_CALLBACK(WRITE8(c64_state, write))
MCFG_C64_EXPANSION_SLOT_DMA_CALLBACK(WRITELINE(c64_state, exp_dma_w))
- MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, NULL)
+ MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, c64_user_port_cards, nullptr)
MCFG_PET_USER_PORT_3_HANDLER(WRITELINE(c64_state, exp_reset_w))
MCFG_PET_USER_PORT_4_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, cnt_w))
MCFG_PET_USER_PORT_5_HANDLER(DEVWRITELINE(MOS6526_1_TAG, mos6526_device, sp_w))