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-rw-r--r--src/mess/drivers/hh_tms1k.c9
-rw-r--r--src/mess/includes/hh_tms1k.h1
2 files changed, 10 insertions, 0 deletions
diff --git a/src/mess/drivers/hh_tms1k.c b/src/mess/drivers/hh_tms1k.c
index 1f972ba67dc..adbc2595c0e 100644
--- a/src/mess/drivers/hh_tms1k.c
+++ b/src/mess/drivers/hh_tms1k.c
@@ -144,6 +144,7 @@ void hh_tms1k_state::machine_start()
m_o = 0;
m_r = 0;
m_inp_mux = 0;
+ m_power_led = false;
m_power_on = false;
// register for savestates
@@ -153,6 +154,7 @@ void hh_tms1k_state::machine_start()
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));
@@ -229,6 +231,13 @@ void hh_tms1k_state::display_update()
}
memcpy(m_display_cache, active_state, sizeof(m_display_cache));
+
+ // output optional power led
+ if (m_power_led != m_power_on)
+ {
+ m_power_led = m_power_on;
+ output_set_value("power_led", m_power_led ? 1 : 0);
+ }
}
TIMER_DEVICE_CALLBACK_MEMBER(hh_tms1k_state::display_decay_tick)
diff --git a/src/mess/includes/hh_tms1k.h b/src/mess/includes/hh_tms1k.h
index 27cf20279d2..2d4149fcee4 100644
--- a/src/mess/includes/hh_tms1k.h
+++ b/src/mess/includes/hh_tms1k.h
@@ -38,6 +38,7 @@ public:
UINT16 m_o; // MCU O-pins data
UINT16 m_inp_mux; // multiplexed inputs mask
bool m_power_on;
+ bool m_power_led;
UINT8 read_inputs(int columns);
DECLARE_INPUT_CHANGED_MEMBER(power_button);