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Diffstat (limited to 'src/devices/bus/isa/sc499.cpp')
-rw-r--r--src/devices/bus/isa/sc499.cpp12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/devices/bus/isa/sc499.cpp b/src/devices/bus/isa/sc499.cpp
index 922c62c2d15..0e0c6438410 100644
--- a/src/devices/bus/isa/sc499.cpp
+++ b/src/devices/bus/isa/sc499.cpp
@@ -319,7 +319,7 @@ sc499_device::sc499_device(const machine_config &mconfig, const char *tag, devic
: device_t(mconfig, SC499, "Archive SC-499", tag, owner, clock, "sc499", __FILE__),
device_isa8_card_interface(mconfig, *this),
m_iobase(*this, "IO_BASE"),
- m_irqdrq(*this, "IRQ_DRQ"), m_data(0), m_command(0), m_status(0), m_control(0), m_has_cartridge(0), m_is_writable(0), m_current_command(0), m_first_block_hack(0), m_nasty_readahead(0), m_read_block_pending(0),
+ m_irqdrq(*this, "IRQ_DRQ"), m_data(0), m_command(0), m_status(0), m_control(0), m_has_cartridge(0), m_is_writable(0), m_current_command(0), m_first_block_hack(0), m_nasty_readahead(0), m_read_block_pending(0),
m_data_index(0), m_tape_status(0), m_data_error_counter(0), m_underrun_counter(0), m_tape_pos(0), m_ctape_block_count(0), m_ctape_block_index(0), m_image_length(0),
m_image(*this, SC499_CTAPE_TAG), irq_state(), dma_drq_state(), m_timer(nullptr), m_timer1(nullptr), m_timer_type(0), m_irq(0), m_drq(0), m_installed(false)
{
@@ -340,12 +340,12 @@ void sc499_device::device_start()
LOG1(("start sc499"));
- m_timer = timer_alloc(0, NULL);
- m_timer1 = timer_alloc(1, NULL);
+ m_timer = timer_alloc(0, nullptr);
+ m_timer1 = timer_alloc(1, nullptr);
m_installed = false;
- if (m_image->image_core_file() == NULL)
+ if (m_image->image_core_file() == nullptr)
{
LOG2(("start sc499: no cartridge tape"));
}
@@ -1177,7 +1177,7 @@ void sc499_device::read_block()
tape = m_image->read_block(m_tape_pos);
- if (tape == NULL)
+ if (tape == nullptr)
{
// either there is no tape or m_tape_pos goes beyond end-of-tape
m_status &= ~SC499_STAT_EXC;
@@ -1296,7 +1296,7 @@ UINT8 *sc499_ctape_image_device::read_block(int block_num)
{
// access beyond end of tape cart
if (m_ctape_data.size() <= (block_num + 1) * SC499_CTAPE_BLOCK_SIZE)
- return NULL;
+ return nullptr;
else
return &m_ctape_data[block_num * SC499_CTAPE_BLOCK_SIZE];
}