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Diffstat (limited to 'src/emu/machine/pit8253.c')
-rw-r--r--src/emu/machine/pit8253.c43
1 files changed, 21 insertions, 22 deletions
diff --git a/src/emu/machine/pit8253.c b/src/emu/machine/pit8253.c
index ac47cddf7a7..5c5dd6cb006 100644
--- a/src/emu/machine/pit8253.c
+++ b/src/emu/machine/pit8253.c
@@ -75,24 +75,24 @@ void pit8253_device::device_config_complete()
// device_start - device-specific startup
//-------------------------------------------------
-void pit8253_device::common_start( int device_type )
+void pit8253_device::common_start( int device_type )
{
m_device_type = device_type;
-
+
/* register for state saving */
for (int timerno = 0; timerno < PIT8253_MAX_TIMER; timerno++)
{
pit8253_timer *timer = get_timer(timerno);
-
+
/* initialize timer */
timer->clockin = m_intf_timer[timerno].clockin;
timer->updatetimer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(pit8253_device::update_timer_cb),this));
timer->updatetimer->adjust(attotime::never, timerno);
-
+
/* resolve callbacks */
timer->in_gate_func.resolve(m_intf_timer[timerno].in_gate_func, *this);
timer->out_out_func.resolve(m_intf_timer[timerno].out_out_func, *this);
-
+
/* set up state save values */
save_item(NAME(timer->clockin), timerno);
save_item(NAME(timer->control), timerno);
@@ -144,20 +144,20 @@ void pit8253_device::device_reset()
timer->rmsb = timer->wmsb = 0;
timer->count = timer->value = timer->latch = 0;
timer->lowcount = 0;
-
+
if (!timer->in_gate_func.isnull())
timer->gate = timer->in_gate_func();
else
timer->gate = 1;
-
+
timer->output = 2; /* output is undetermined */
timer->latched_count = 0;
timer->latched_status = 0;
timer->null_count = 1;
timer->cycles_to_output = CYCLES_NEVER;
-
+
timer->last_updated = machine().time();
-
+
update(timer);
}
}
@@ -311,7 +311,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
LOG2(("pit8253: simulate2(): simulating %d cycles for %d in mode %d, bcd = %d, phase = %d, gate = %d, output %d, value = 0x%04x\n",
(int)elapsed_cycles, timer->index, mode, bcd, timer->phase, pit8253_gate(timer), timer->output, timer->value));
- switch (mode)
+ switch (mode)
{
case 0:
/* Mode 0: (Interrupt on Terminal Count)
@@ -342,7 +342,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
if (elapsed_cycles >= 0 && timer->phase == 1)
{
/* Counter load cycle */
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
--elapsed_cycles;
timer->phase = 2;
@@ -406,7 +406,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
if (elapsed_cycles >= 0 && timer->phase == 1)
{
/* Counter load cycle, output goes low */
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
--elapsed_cycles;
timer->phase = 2;
@@ -472,7 +472,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
{
if (elapsed_cycles >= 0 && timer->phase == 1)
{
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
--elapsed_cycles;
timer->phase = 2;
@@ -552,7 +552,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
{
if (elapsed_cycles >= 0 && timer->phase == 1)
{
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
--elapsed_cycles;
timer->phase = 2;
@@ -560,7 +560,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
load_counter_value(timer);
}
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
adjusted_value = adjusted_count(bcd, timer->value);
@@ -635,7 +635,7 @@ void pit8253_device::simulate2(pit8253_timer *timer, INT64 elapsed_cycles)
{
if (elapsed_cycles >= 0 && timer->phase == 1)
{
- if (elapsed_cycles > 0)
+ if (elapsed_cycles > 0)
{
--elapsed_cycles;
timer->phase = 2;
@@ -799,12 +799,12 @@ READ8_MEMBER( pit8253_device::read )
timer->rmsb = 1 - timer->rmsb;
--timer->latched_count;
}
- else
+ else
{
value = masked_value(timer);
/* Read back current count */
- switch(CTRL_ACCESS(timer->control))
+ switch(CTRL_ACCESS(timer->control))
{
case 0:
default:
@@ -892,7 +892,7 @@ void pit8253_device::readback(pit8253_timer *timer, int command)
if (timer->latched_count == 0)
{
value = masked_value(timer);
- switch(CTRL_ACCESS(timer->control))
+ switch(CTRL_ACCESS(timer->control))
{
case 0:
/* This should never happen */
@@ -928,7 +928,7 @@ WRITE8_MEMBER( pit8253_device::write )
LOG2(("pit8253: write(): offset=%d data=0x%02x\n", offset, data));
- if (timer == NULL)
+ if (timer == NULL)
{
/* Write to mode control register */
timer = get_timer((data >> 6) & 3);
@@ -982,7 +982,7 @@ WRITE8_MEMBER( pit8253_device::write )
if (machine().time() > timer->last_updated && timer->clockin != 0)
middle_of_a_cycle = 1;
- switch(CTRL_ACCESS(timer->control))
+ switch(CTRL_ACCESS(timer->control))
{
case 0:
/* This should never happen */
@@ -1124,4 +1124,3 @@ void pit8253_device::set_clock_signal(int timerno, int state)
WRITE_LINE_MEMBER( pit8253_device::clk0_w ) { set_clock_signal(0, state); }
WRITE_LINE_MEMBER( pit8253_device::clk1_w ) { set_clock_signal(1, state); }
WRITE_LINE_MEMBER( pit8253_device::clk2_w ) { set_clock_signal(2, state); }
-