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Diffstat (limited to 'src/devices/machine/pit8253.cpp')
-rw-r--r--src/devices/machine/pit8253.cpp14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/devices/machine/pit8253.cpp b/src/devices/machine/pit8253.cpp
index 2a0be4466ab..d0bf2bc5c84 100644
--- a/src/devices/machine/pit8253.cpp
+++ b/src/devices/machine/pit8253.cpp
@@ -83,7 +83,7 @@ pit8253_device::pit8253_timer *pit8253_device::get_timer(int which)
if (which < PIT8253_MAX_TIMER)
return &m_timers[which];
- return NULL;
+ return nullptr;
}
@@ -758,7 +758,7 @@ READ8_MEMBER( pit8253_device::read )
LOG2(("pit8253_r(): offset %d\n", offset));
- if (timer == NULL)
+ if (timer == nullptr)
{
/* Reading mode control register is illegal according to docs */
/* Experimentally determined: reading it returns 0 */
@@ -935,11 +935,11 @@ WRITE8_MEMBER( pit8253_device::write )
LOG2(("pit8253: write(): offset=%d data=0x%02x\n", offset, data));
- if (timer == NULL)
+ if (timer == nullptr)
{
/* Write to mode control register */
timer = get_timer((data >> 6) & 3);
- if (timer == NULL)
+ if (timer == nullptr)
{
readback_command(data);
return;
@@ -1042,7 +1042,7 @@ void pit8253_device::gate_w(int gate, int state)
{
pit8253_timer *timer = get_timer(gate);
- if (timer == NULL)
+ if (timer == nullptr)
return;
LOG2(("pit8253 : gate_w(): gate=%d state=%d\n", gate, state));
@@ -1082,7 +1082,7 @@ WRITE_LINE_MEMBER( pit8253_device::write_gate2 )
void pit8253_device::set_clockin(int timerno, double new_clockin)
{
pit8253_timer *timer = get_timer(timerno);
- assert(timer != NULL);
+ assert(timer != nullptr);
LOG2(("pit8253_set_clockin(): PIT timer=%d, clockin = %f\n", timerno, new_clockin));
@@ -1095,7 +1095,7 @@ void pit8253_device::set_clockin(int timerno, double new_clockin)
void pit8253_device::set_clock_signal(int timerno, int state)
{
pit8253_timer *timer = get_timer(timerno);
- assert(timer != NULL);
+ assert(timer != nullptr);
LOG2(("pit8253_set_clock_signal(): PIT timer=%d, state = %d\n", timerno, state));