diff options
Diffstat (limited to 'src/mame/drivers/system1.cpp')
-rw-r--r-- | src/mame/drivers/system1.cpp | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/mame/drivers/system1.cpp b/src/mame/drivers/system1.cpp index cc2e1d5fcdd..20a7f74594c 100644 --- a/src/mame/drivers/system1.cpp +++ b/src/mame/drivers/system1.cpp @@ -436,11 +436,11 @@ void system1_state::bank0c_custom_w(UINT8 data, UINT8 prevdata) WRITE8_MEMBER(system1_state::videomode_w) { /* bit 6 is connected to the 8751 IRQ */ - if (m_mcu != NULL) + if (m_mcu != nullptr) m_mcu->set_input_line(MCS51_INT1_LINE, (data & 0x40) ? CLEAR_LINE : ASSERT_LINE); /* handle any custom banking or other stuff */ - if (m_videomode_custom != NULL) + if (m_videomode_custom != nullptr) (this->*m_videomode_custom)(data, m_videomode_prev); m_videomode_prev = data; @@ -526,7 +526,7 @@ READ8_MEMBER(system1_state::sound_data_r) z80pio_device *pio = machine().device<z80pio_device>("pio"); /* if we have an 8255 PPI, get the data from the port and toggle the ack */ - if (m_ppi8255 != NULL) + if (m_ppi8255 != nullptr) { m_ppi8255->pc6_w(0); m_ppi8255->pc6_w(1); @@ -534,7 +534,7 @@ READ8_MEMBER(system1_state::sound_data_r) } /* if we have a Z80 PIO, get the data from the port and toggle the strobe */ - else if (pio != NULL) + else if (pio != nullptr) { UINT8 data = pio->port_read(z80pio_device::PORT_A); pio->strobe(z80pio_device::PORT_A, false); @@ -4789,20 +4789,20 @@ ROM_END DRIVER_INIT_MEMBER(system1_state,bank00) { - m_videomode_custom = NULL; - m_banked_decrypted_opcodes = NULL; + m_videomode_custom = nullptr; + m_banked_decrypted_opcodes = nullptr; } DRIVER_INIT_MEMBER(system1_state,bank44) { m_videomode_custom = &system1_state::bank44_custom_w; - m_banked_decrypted_opcodes = NULL; + m_banked_decrypted_opcodes = nullptr; } DRIVER_INIT_MEMBER(system1_state,bank0c) { m_videomode_custom = &system1_state::bank0c_custom_w; - m_banked_decrypted_opcodes = NULL; + m_banked_decrypted_opcodes = nullptr; } DRIVER_INIT_MEMBER(system1_state,regulus) |