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Diffstat (limited to 'src/mess/drivers/wildfire.c')
-rw-r--r--src/mess/drivers/wildfire.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/src/mess/drivers/wildfire.c b/src/mess/drivers/wildfire.c
index 93e66e5d31d..853f464bded 100644
--- a/src/mess/drivers/wildfire.c
+++ b/src/mess/drivers/wildfire.c
@@ -46,16 +46,16 @@ public:
UINT8 m_d;
UINT16 m_a;
- UINT16 m_leds_state[0x10];
- UINT16 m_leds_cache[0x10];
- UINT8 m_leds_decay[0x100];
+ UINT16 m_display_state[0x10];
+ UINT16 m_display_cache[0x10];
+ UINT8 m_display_decay[0x100];
DECLARE_READ8_MEMBER(read_k);
DECLARE_WRITE8_MEMBER(write_d);
DECLARE_WRITE16_MEMBER(write_a);
- TIMER_DEVICE_CALLBACK_MEMBER(leds_decay_tick);
- void leds_update();
+ TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);
+ void display_update();
bool index_is_7segled(int index);
virtual void machine_start();
@@ -65,15 +65,15 @@ public:
/***************************************************************************
- LEDs
+ LED Display
***************************************************************************/
// The device strobes the outputs very fast, it is unnoticeable to the user.
// To prevent flickering here, we need to simulate a decay.
-// decay time, in steps of 10ms
-#define LEDS_DECAY_TIME 4
+// decay time, in steps of 1ms
+#define DISPLAY_DECAY_TIME 40
inline bool wildfire_state::index_is_7segled(int index)
{
@@ -81,14 +81,14 @@ inline bool wildfire_state::index_is_7segled(int index)
return (index < 3);
}
-void wildfire_state::leds_update()
+void wildfire_state::display_update()
{
UINT16 active_state[0x10];
for (int i = 0; i < 0x10; i++)
{
// update current state
- m_leds_state[i] = (~m_a >> i & 1) ? m_d : 0;
+ m_display_state[i] = (~m_a >> i & 1) ? m_d : 0;
active_state[i] = 0;
@@ -96,19 +96,19 @@ void wildfire_state::leds_update()
{
int di = j << 4 | i;
- // turn on powered leds
- if (m_leds_state[i] >> j & 1)
- m_leds_decay[di] = LEDS_DECAY_TIME;
+ // turn on powered segments
+ if (m_display_state[i] >> j & 1)
+ m_display_decay[di] = DISPLAY_DECAY_TIME;
// determine active state
- int ds = (m_leds_decay[di] != 0) ? 1 : 0;
+ int ds = (m_display_decay[di] != 0) ? 1 : 0;
active_state[i] |= (ds << j);
}
}
// on difference, send to output
for (int i = 0; i < 0x10; i++)
- if (m_leds_cache[i] != active_state[i])
+ if (m_display_cache[i] != active_state[i])
{
if (index_is_7segled(i))
output_set_digit_value(i, BITSWAP8(active_state[i],7,0,1,2,3,4,5,6) & 0x7f);
@@ -117,17 +117,17 @@ void wildfire_state::leds_update()
output_set_lamp_value(i*10 + j, active_state[i] >> j & 1);
}
- memcpy(m_leds_cache, active_state, sizeof(m_leds_cache));
+ memcpy(m_display_cache, active_state, sizeof(m_display_cache));
}
-TIMER_DEVICE_CALLBACK_MEMBER(wildfire_state::leds_decay_tick)
+TIMER_DEVICE_CALLBACK_MEMBER(wildfire_state::display_decay_tick)
{
- // slowly turn off unpowered leds
+ // slowly turn off unpowered segments
for (int i = 0; i < 0x100; i++)
- if (!(m_leds_state[i & 0xf] >> (i>>4) & 1) && m_leds_decay[i])
- m_leds_decay[i]--;
+ if (!(m_display_state[i & 0xf] >> (i>>4) & 1) && m_display_decay[i])
+ m_display_decay[i]--;
- leds_update();
+ display_update();
}
@@ -147,13 +147,13 @@ READ8_MEMBER(wildfire_state::read_k)
WRITE8_MEMBER(wildfire_state::write_d)
{
m_d = data;
- leds_update();
+ display_update();
}
WRITE16_MEMBER(wildfire_state::write_a)
{
m_a = data;
- leds_update();
+ display_update();
}
@@ -183,17 +183,17 @@ INPUT_PORTS_END
void wildfire_state::machine_start()
{
// zerofill
- memset(m_leds_state, 0, sizeof(m_leds_state));
- memset(m_leds_cache, 0, sizeof(m_leds_cache));
- memset(m_leds_decay, 0, sizeof(m_leds_decay));
+ memset(m_display_state, 0, sizeof(m_display_state));
+ memset(m_display_cache, 0, sizeof(m_display_cache));
+ memset(m_display_decay, 0, sizeof(m_display_decay));
m_d = 0;
m_a = 0;
// register for savestates
- save_item(NAME(m_leds_state));
- save_item(NAME(m_leds_cache));
- save_item(NAME(m_leds_decay));
+ save_item(NAME(m_display_state));
+ save_item(NAME(m_display_cache));
+ save_item(NAME(m_display_decay));
save_item(NAME(m_d));
save_item(NAME(m_a));
@@ -209,7 +209,7 @@ static MACHINE_CONFIG_START( wildfire, wildfire_state )
MCFG_AMI_S2000_WRITE_D_CB(WRITE8(wildfire_state, write_d))
MCFG_AMI_S2000_WRITE_A_CB(WRITE16(wildfire_state, write_a))
- MCFG_TIMER_DRIVER_ADD_PERIODIC("leds_decay", wildfire_state, leds_decay_tick, attotime::from_msec(10))
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("display_decay", wildfire_state, display_decay_tick, attotime::from_msec(1))
MCFG_DEFAULT_LAYOUT(layout_wildfire)