wildfire 7segleds and buttons work

src/emu/cpu/amis2000/amis2000.c

@@ -33,7 +33,7 @@ ADDRESS_MAP_END
 
 static ADDRESS_MAP_START(program_1_5k, AS_PROGRAM, 8, amis2000_device)
 	AM_RANGE(0x0000, 0x03ff) AM_ROM
-	AM_RANGE(0x0400, 0x05ff) AM_NOP
+	AM_RANGE(0x0400, 0x05ff) AM_NOP // 0x00
 	AM_RANGE(0x0600, 0x07ff) AM_ROM
 ADDRESS_MAP_END
 
@@ -128,8 +128,8 @@ void amis2000_device::device_start()
 	m_program = &space(AS_PROGRAM);
 	m_data = &space(AS_DATA);
 
-	m_read_k.resolve_safe(0);
+	m_read_k.resolve_safe(0xf);
-	m_read_i.resolve_safe(0);
+	m_read_i.resolve_safe(0xf);
 	m_read_d.resolve_safe(0);
 	m_write_d.resolve_safe();
 	m_write_a.resolve_safe();
@@ -209,8 +209,8 @@ void amis2000_device::device_reset()
 	m_d_polarity = 0;
 	m_d = 0; d_latch_out(false);
 	m_a = 0; m_write_a(0, 0, 0xffff);
-	m_i = 0;
+	m_i = 0xf;
-	m_k = 0;
+	m_k = 0xf;
 }
 
 

src/mess/drivers/splitsec.c

@@ -103,8 +103,7 @@ void splitsec_state::leds_update()
 	for (int i = 0; i < 0x10; i++)
 	{
 		// update current state
-		if (m_r >> i & 1)
+		m_leds_state[i] = (m_r >> i & 1) ? m_o : 0;
-			m_leds_state[i] = m_o;
 
 		active_state[i] = 0;
 

src/mess/drivers/tispeak.c

@@ -138,8 +138,7 @@ void tispeak_state::leds_update()
 	for (int i = 0; i < 0x10; i++)
 	{
 		// update current state
-		if (m_r >> i & 1)
+		m_leds_state[i] = (m_r >> i & 1) ? m_o : 0;
-			m_leds_state[i] = m_o;
 
 		active_state[i] = 0;
 

src/mess/drivers/wildfire.c

@@ -31,13 +31,96 @@ public:
 	required_device<cpu_device> m_maincpu;
 	required_device<speaker_sound_device> m_speaker;
 
+	UINT8 m_d;
+	UINT16 m_a;
+
+	UINT16 m_leds_state[0x10];
+	UINT16 m_leds_cache[0x10];
+	UINT8 m_leds_decay[0x100];
+
 	DECLARE_WRITE8_MEMBER(write_d);
 	DECLARE_WRITE16_MEMBER(write_a);
 
+	TIMER_DEVICE_CALLBACK_MEMBER(leds_decay_tick);
+	void leds_update();
+	bool index_is_7segled(int i);
+
 	virtual void machine_start();
 };
 
 
+
+/***************************************************************************
+
+  LEDs
+
+***************************************************************************/
+
+// 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
+
+bool wildfire_state::index_is_7segled(int i)
+{
+	// first 3 A are 7segleds
+	return (i < 3);
+}
+
+void wildfire_state::leds_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;
+		if (index_is_7segled(i))
+			m_leds_state[i] = BITSWAP8(m_leds_state[i],7,0,1,2,3,4,5,6);
+
+		active_state[i] = 0;
+
+		for (int j = 0; j < 0x10; j++)
+		{
+			int di = j << 4 | i;
+
+			// turn on powered leds
+			if (m_leds_state[i] >> j & 1)
+				m_leds_decay[di] = LEDS_DECAY_TIME;
+
+			// determine active state
+			int ds = (m_leds_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 (index_is_7segled(i))
+				output_set_digit_value(i, active_state[i] & 0x7f);
+
+			for (int j = 0; j < 8; j++)
+				output_set_lamp_value(i*10 + j, active_state[i] >> j & 1);
+		}
+
+	memcpy(m_leds_cache, active_state, sizeof(m_leds_cache));
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(wildfire_state::leds_decay_tick)
+{
+	// slowly turn off unpowered leds
+	for (int i = 0; i < 0x100; i++)
+		if (!(m_leds_state[i & 0xf] >> (i>>4) & 1) && m_leds_decay[i])
+			m_leds_decay[i]--;
+
+	leds_update();
+}
+
+
+
 /***************************************************************************
 
   I/O
@@ -46,10 +129,14 @@ public:
 
 WRITE8_MEMBER(wildfire_state::write_d)
 {
+	m_d = data;
+	leds_update();
 }
 
 WRITE16_MEMBER(wildfire_state::write_a)
 {
+	m_a = data;
+	leds_update();
 }
 
 
@@ -62,10 +149,10 @@ WRITE16_MEMBER(wildfire_state::write_a)
 
 static INPUT_PORTS_START( wildfire )
 	PORT_START("IN1") // I
-	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Shooter Button")
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("Shooter Button")
-	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Left Flipper")
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Left Flipper")
-	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Right Flipper")
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Right Flipper")
-	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
 INPUT_PORTS_END
 
 
@@ -78,6 +165,21 @@ 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));
+
+	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_d));
+	save_item(NAME(m_a));
 }
 
 
@@ -89,6 +191,8 @@ 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_DEFAULT_LAYOUT(layout_wildfire)
 
 	/* no video! */

src/mess/layout/wildfire.lay

@@ -5,6 +5,10 @@
 
 	<element name="static_black"><rect><color red="0.0" green="0.0" blue="0.0" /></rect></element>
 
+	<element name="digit" defstate="0">
+		<led7seg><color red="1.0" green="0.20" blue="0.22" /></led7seg>
+	</element>
+
 
 <!-- build screen -->
 
@@ -14,5 +18,9 @@
 			<bounds left="0" right="100" top="0" bottom="100" />
 		</bezel>
 
+		<bezel name="digit0" element="digit"><bounds x="0" y="0" width="10" height="15" /></bezel>
+		<bezel name="digit1" element="digit"><bounds x="10" y="0" width="10" height="15" /></bezel>
+		<bezel name="digit2" element="digit"><bounds x="20" y="0" width="10" height="15" /></bezel>
+
 	</view>
 </mamelayout>