sensorboard: only load last position when the chesscomputer expects it (nw)

src/devices/machine/sensorboard.cpp

@@ -79,6 +79,7 @@ sensorboard_device::sensorboard_device(const machine_config &mconfig, const char
 	m_custom_spawn_cb(*this),
 	m_custom_output_cb(*this)
 {
+	m_nvram_on = false;
 	m_nosensors = false;
 	m_magnets = false;
 	m_inductive = false;
@@ -202,8 +203,13 @@ void sensorboard_device::device_reset()
 {
 	cancel_sensor();
 	cancel_hand();
-	undo_reset();
 
+	if (!m_nvram_on)
+	{
+		clear_board();
+		m_custom_init_cb(0);
+	}
+	undo_reset();
 	refresh();
 }
 

src/devices/machine/sensorboard.h

@@ -33,6 +33,7 @@ public:
 	sensorboard_device &set_spawnpoints(u8 i) { m_maxspawn = i; m_maxid = i; return *this; } // number of piece spawnpoints, max 16
 	sensorboard_device &set_max_id(u8 i) { m_maxid = i; return *this; } // maximum piece id (if larger than set_spawnpoints)
 	sensorboard_device &set_delay(attotime delay) { m_sensordelay = delay; return *this; } // delay when activating a sensor (like PORT_IMPULSE), set to attotime::never to disable
+	sensorboard_device &set_nvram(bool b) { m_nvram_on = b; return *this; } // load last board position on start
 	sensorboard_device &set_ui_enable(bool b) { if (!b) m_maxspawn = 0; m_ui_enabled = (b) ? 3 : 0; return *this; } // enable UI inputs
 	sensorboard_device &set_mod_enable(bool b) { if (b) m_ui_enabled |= 1; else m_ui_enabled &= 2; return *this; } // enable modifier keys
 
@@ -124,6 +125,7 @@ private:
 	u32 m_usize;
 
 	void nvram_init(nvram_device &nvram, void *data, size_t size);
+	bool m_nvram_on;
 
 	emu_timer *m_undotimer;
 	TIMER_CALLBACK_MEMBER(undo_tick);

src/mame/drivers/cxg_sphinx40.cpp

@@ -292,6 +292,7 @@ void sphinx40_state::sphinx40(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(150));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	HD61603(config, m_lcd, 0);

src/mame/drivers/fidel_eag68k.cpp

@@ -623,6 +623,7 @@ void eag_state::eag_base(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(150));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(9, 16);

src/mame/drivers/fidel_elite.cpp

@@ -466,6 +466,7 @@ void elite_state::eas(machine_config &config)
 	m_ppi8255->tri_pc_callback().set_constant(0);
 
 	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
+	m_board->set_nvram(true);
 
 	config.set_default_layout(layout_fidel_eas);
 }

src/mame/drivers/mephisto_berlin.cpp

@@ -138,6 +138,8 @@ void berlin_state::berlin(machine_config &config)
 	ADDRESS_MAP_BANK(config, "nvram_map").set_map(&berlin_state::nvram_map).set_options(ENDIANNESS_BIG, 8, 13);
 
 	MEPHISTO_BUTTONS_BOARD(config, m_board);
+	subdevice<sensorboard_device>("board:board")->set_nvram(true);
+
 	MEPHISTO_DISPLAY_MODULE2(config, "display");
 	config.set_default_layout(layout_mephisto_berlin);
 }

src/mame/drivers/mephisto_modena.cpp

@@ -181,6 +181,7 @@ void mephisto_modena_state::modena(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(150));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(3, 8);

src/mame/drivers/mephisto_modular.cpp

@@ -410,8 +410,9 @@ void mmodular_state::alm16(machine_config &config)
 	ADDRESS_MAP_BANK(config, "nvram_map").set_map(&mmodular_state::nvram_map).set_options(ENDIANNESS_BIG, 8, 13);
 
 	MEPHISTO_SENSORS_BOARD(config, m_board);
-	m_board->subdevice<sensorboard_device>("board")->set_spawnpoints(12+2); // 2 jokers
-	m_board->subdevice<sensorboard_device>("board")->spawn_cb().set(FUNC(mmodular_state::spawn_cb));
+	subdevice<sensorboard_device>("board:board")->set_spawnpoints(12+2); // 2 jokers
+	subdevice<sensorboard_device>("board:board")->spawn_cb().set(FUNC(mmodular_state::spawn_cb));
+	subdevice<sensorboard_device>("board:board")->set_nvram(true);
 
 	TIMER(config, "bav_busy").configure_generic(nullptr);
 

src/mame/drivers/mephisto_modular_tm.cpp

@@ -213,6 +213,8 @@ void mmtm_state::mmtm_v(machine_config &config)
 	ADDRESS_MAP_BANK(config, "nvram_map").set_map(&mmtm_state::nvram_map).set_options(ENDIANNESS_BIG, 8, 13);
 
 	MEPHISTO_SENSORS_BOARD(config, "board");
+	subdevice<sensorboard_device>("board:board")->set_nvram(true);
+
 	MEPHISTO_DISPLAY_MODULE2(config, "display");
 	config.set_default_layout(layout_mephisto_modular_tm);
 }

src/mame/drivers/novag_cforte.cpp

@@ -259,6 +259,7 @@ void cforte_state::cforte(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(200));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	HLCD0538(config, m_lcd).write_cols().set(FUNC(cforte_state::lcd_output_w));

src/mame/drivers/novag_const.cpp

@@ -377,6 +377,7 @@ void const_state::ssensor4(machine_config &config)
 	m_maincpu->set_addrmap(AS_PROGRAM, &const_state::ssensor4_map);
 
 	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1);
+	m_board->set_nvram(true);
 
 	config.set_default_layout(layout_novag_ssensor4);
 }
@@ -447,6 +448,7 @@ void const_state::sconst(machine_config &config)
 	m_irq_on->set_start_delay(m_irq_on->period() - attotime::from_nsec(10200)); // irq active for 10.2us
 
 	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1);
+	m_board->set_nvram(true);
 
 	config.set_default_layout(layout_novag_supercon);
 }

src/mame/drivers/novag_diablo.cpp

@@ -299,6 +299,7 @@ void diablo_state::diablo68k(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(100));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	SCREEN(config, m_screen, SCREEN_TYPE_LCD);

src/mame/drivers/novag_sexpert.cpp

@@ -429,6 +429,7 @@ void sexpert_state::sexpert(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(200));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	SCREEN(config, m_screen, SCREEN_TYPE_LCD);
@@ -472,6 +473,7 @@ void sforte_state::sforte(machine_config &config)
 	/* basic machine hardware */
 	m_maincpu->set_addrmap(AS_PROGRAM, &sforte_state::sforte_map);
 	m_irq_on->set_start_delay(m_irq_on->period() - attotime::from_usec(10)); // tlow measured between 8us and 12us (unstable)
+
 	m_board->set_type(sensorboard_device::BUTTONS);
 
 	config.set_default_layout(layout_novag_sforte);

src/mame/drivers/saitek_corona.cpp

@@ -283,6 +283,7 @@ void corona_state::corona(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(200));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(3+8, 8);

src/mame/drivers/saitek_mark5.cpp

@@ -457,6 +457,7 @@ void mark5_state::mark6(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(150));
+	m_board->set_nvram(true);
 
 	PWM_DISPLAY(config, m_display[3]).set_size(8, 8);
 	m_display[3]->set_bri_levels(0.001);

src/mame/drivers/saitek_risc2500.cpp

@@ -301,6 +301,7 @@ void risc2500_state::risc2500(machine_config &config)
 	m_board->set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(100));
+	m_board->set_nvram(true);
 
 	RAM(config, m_ram).set_default_size("2M").set_extra_options("128K, 256K, 512K, 1M, 2M");
 

src/mame/drivers/saitek_simultano.cpp

@@ -312,6 +312,7 @@ void simultano_state::simultano(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(350));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	SED1502(config, m_lcd, 32768).write_segs().set(FUNC(simultano_state::lcd_output_w));

src/mame/drivers/saitek_stratos.cpp

@@ -483,6 +483,7 @@ void stratos_state::stratos(machine_config &config)
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
 	m_board->set_delay(attotime::from_msec(350));
+	m_board->set_nvram(true);
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(2+4, 8+1);

src/mame/drivers/tasc.cpp

@@ -233,6 +233,7 @@ void tasc_state::tasc(machine_config &config)
 	m_lcd->set_fs(1); // font size 6x8
 
 	TASC_SB30(config, m_smartboard);
+	subdevice<sensorboard_device>("smartboard:board")->set_nvram(true);
 
 	config.set_default_layout(layout_tascr30);