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Diffstat (limited to 'src/mame/drivers/hh_tms1k.cpp')
-rw-r--r--src/mame/drivers/hh_tms1k.cpp53
1 files changed, 16 insertions, 37 deletions
diff --git a/src/mame/drivers/hh_tms1k.cpp b/src/mame/drivers/hh_tms1k.cpp
index ab05a4c0d52..ded2c6b7513 100644
--- a/src/mame/drivers/hh_tms1k.cpp
+++ b/src/mame/drivers/hh_tms1k.cpp
@@ -221,9 +221,13 @@
void hh_tms1k_state::machine_start()
{
+ // resolve handlers
+ m_out_x.resolve();
+ m_out_a.resolve();
+ m_out_digit.resolve();
+
// zerofill
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));
memset(m_display_segmask, 0, sizeof(m_display_segmask));
@@ -241,7 +245,6 @@ void hh_tms1k_state::machine_start()
save_item(NAME(m_display_wait));
save_item(NAME(m_display_state));
- /* save_item(NAME(m_display_cache)); */ // don't save!
/* save_item(NAME(m_power_led)); */ // don't save!
save_item(NAME(m_display_decay));
save_item(NAME(m_display_segmask));
@@ -272,11 +275,9 @@ void hh_tms1k_state::machine_reset()
void hh_tms1k_state::display_update()
{
- u32 active_state[0x20];
-
for (int y = 0; y < m_display_maxy; y++)
{
- active_state[y] = 0;
+ u32 active_state = 0;
for (int x = 0; x <= m_display_maxx; x++)
{
@@ -286,41 +287,19 @@ void hh_tms1k_state::display_update()
// determine active state
u32 ds = (m_display_decay[y][x] != 0) ? 1 : 0;
- active_state[y] |= (ds << x);
- }
- }
+ active_state |= (ds << x);
- // on difference, send to output
- for (int y = 0; y < m_display_maxy; y++)
- if (m_display_cache[y] != active_state[y])
- {
- if (m_display_segmask[y] != 0)
- output().set_digit_value(y, active_state[y] & m_display_segmask[y]);
-
- const int mul = (m_display_maxx <= 10) ? 10 : 100;
- for (int x = 0; x <= m_display_maxx; x++)
- {
- int state = active_state[y] >> x & 1;
- char buf1[0x10]; // lampyx
- char buf2[0x10]; // y.x
-
- if (x == m_display_maxx)
- {
- // always-on if selected
- sprintf(buf1, "lamp%da", y);
- sprintf(buf2, "%d.a", y);
- }
- else
- {
- sprintf(buf1, "lamp%d", y * mul + x);
- sprintf(buf2, "%d.%d", y, x);
- }
- output().set_value(buf1, state);
- output().set_value(buf2, state);
- }
+ // output to y.x, or y.a when always-on
+ if (x != m_display_maxx)
+ m_out_x[y][x] = ds;
+ else
+ m_out_a[y] = ds;
}
- memcpy(m_display_cache, active_state, sizeof(m_display_cache));
+ // output to digity
+ if (m_display_segmask[y] != 0)
+ m_out_digit[y] = active_state & m_display_segmask[y];
+ }
// output optional power led
if (m_power_led != m_power_on)