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diff --git a/src/mame/drivers/novag_const.cpp b/src/mame/drivers/novag_const.cpp
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-// license:BSD-3-Clause
-// copyright-holders:hap
-// thanks-to:Berger
-/******************************************************************************
-
-Novag Super Sensor IV (model 812)
-Novag Constellation (model 831)
-Novag Super Constellation (model 844)
-Novag Constellation 3.6MHz (model 845)
-Novag Constellation Quattro (model 862)
-
-The chess engine is by David Kittinger, Super Sensor IV is his first one
-working under Novag. The Constellation engine is completely different.
-
-Hardware notes:
-
-They are all on very similar hardware.
-The more expensive chesscomputers have battery-backed RAM and support for
-printer and chessclock peripherals.
-
-Constellation:
-- MOS MPS6502A @ 2MHz
-- 2KB RAM (daughterboard with 4*2114), 2*8KB ROM
-- TTL, buzzer, 24 LEDs, 8*8 chessboard buttons
-
-Constellation 3.6MHz:
-- PCB label: NOVAG CONSTELLATION Rev E 100037
-- G65SC02P-3 or R65C02P3(newer version) @ 3.6MHz (7.2MHz XTAL)
-- 2KB RAM (TC5516AP), 16KB ROM (custom label, assumed TMM23128)
-- PCB supports "Memory Save", but components aren't installed
-
-Constellation 3.6MHz manufactured in 1986 was fitted with the same ROM as
-the Quattro, but PCB remains almost the same (Quatto PCB is very different).
-Button labels are the same as the older version.
-
-Constellation Quattro:
-- R65C02P3 @ 4MHz (8MHz XTAL)
-- 2KB RAM (D449C), 16KB ROM (custom label)
-
-Super Sensor IV:
-- MOS MPS6502A @ 2MHz
-- 1KB battery-backed RAM (2*TC5514AP-3)
-- 8KB ROM (TMM2364P)
-- 2 ROM sockets unpopulated
-
-Sensor Dynamic's ROM is identical to Super Sensor IV "1I", the hardware is
-basically a low-budget version of it with peripheral ports removed.
-
-Super Constellation:
-- UMC UM6502C @ 4 MHz (8MHz XTAL)
-- 4KB battery-backed RAM (2*TC5516APL-2)
-- 2*32KB ROM custom label
-
-TODO:
-- ssensor4 nvram doesn't work, at boot it always starts a new game
-- is Dynamic S a program update of ssensor4 or identical?
-- verify IRQ active time for ssensor4
-
-******************************************************************************/
-
-#include "emu.h"
-#include "cpu/m6502/m6502.h"
-#include "cpu/m6502/m65sc02.h"
-#include "cpu/m6502/r65c02.h"
-#include "machine/sensorboard.h"
-#include "machine/nvram.h"
-#include "machine/timer.h"
-#include "sound/beep.h"
-#include "video/pwm.h"
-#include "speaker.h"
-
-// internal artwork
-#include "novag_const.lh" // clickable
-#include "novag_constq.lh" // clickable
-#include "novag_ssensor4.lh" // clickable
-#include "novag_supercon.lh" // clickable
-
-
-namespace {
-
-class const_state : public driver_device
-{
-public:
- const_state(const machine_config &mconfig, device_type type, const char *tag) :
- driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_irq_on(*this, "irq_on"),
- m_board(*this, "board"),
- m_display(*this, "display"),
- m_beeper(*this, "beeper"),
- m_inputs(*this, "IN.%u", 0)
- { }
-
- // machine configs
- void nconst(machine_config &config);
- void nconst36(machine_config &config);
- void nconst36a(machine_config &config);
- void nconstq(machine_config &config);
- void ssensor4(machine_config &config);
- void sconst(machine_config &config);
-
- void init_const();
-
-protected:
- virtual void machine_start() override;
-
-private:
- // devices/pointers
- required_device<cpu_device> m_maincpu;
- required_device<timer_device> m_irq_on;
- required_device<sensorboard_device> m_board;
- required_device<pwm_display_device> m_display;
- required_device<beep_device> m_beeper;
- required_ioport_array<8> m_inputs;
-
- // address maps
- void const_map(address_map &map);
- void ssensor4_map(address_map &map);
- void sconst_map(address_map &map);
-
- // periodic interrupts
- template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_on) { m_maincpu->set_input_line(Line, ASSERT_LINE); }
- template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_off) { m_maincpu->set_input_line(Line, CLEAR_LINE); }
-
- // I/O handlers
- void update_display();
- DECLARE_WRITE8_MEMBER(mux_w);
- DECLARE_WRITE8_MEMBER(control_w);
- DECLARE_READ8_MEMBER(input1_r);
- DECLARE_READ8_MEMBER(input2_r);
-
- u8 m_inp_mux;
- u8 m_led_select;
-};
-
-void const_state::machine_start()
-{
- // zerofill
- m_inp_mux = 0;
- m_led_select = 0;
-
- // register for savestates
- save_item(NAME(m_inp_mux));
- save_item(NAME(m_led_select));
-}
-
-void const_state::init_const()
-{
- // game relies on RAM filled with FF at power-on
- for (int i = 0; i < 0x800; i++)
- m_maincpu->space(AS_PROGRAM).write_byte(i, 0xff);
-}
-
-
-
-/******************************************************************************
- I/O
-******************************************************************************/
-
-void const_state::update_display()
-{
- m_display->matrix(m_led_select, m_inp_mux);
-}
-
-WRITE8_MEMBER(const_state::mux_w)
-{
- // d0-d7: input mux, led data
- m_inp_mux = data;
- update_display();
-}
-
-WRITE8_MEMBER(const_state::control_w)
-{
- // d0-d3: ?
- // d4-d6: select led row
- m_led_select = data >> 4 & 7;
- update_display();
-
- // d7: enable beeper
- m_beeper->set_state(data >> 7 & 1);
-}
-
-READ8_MEMBER(const_state::input1_r)
-{
- u8 data = 0;
-
- // d0-d7: multiplexed inputs (chessboard squares)
- for (int i = 0; i < 8; i++)
- if (BIT(m_inp_mux, i))
- data |= m_board->read_rank(i ^ 7, true);
-
- return ~data;
-}
-
-READ8_MEMBER(const_state::input2_r)
-{
- u8 data = 0;
-
- // d3: timing related? seems unused (always high)
- // other: ?
-
- // d6,d7: multiplexed inputs (side panel)
- for (int i = 0; i < 8; i++)
- if (BIT(m_inp_mux, i))
- data |= m_inputs[i]->read() << 6;
-
- return ~data;
-}
-
-
-
-/******************************************************************************
- Address Maps
-******************************************************************************/
-
-void const_state::ssensor4_map(address_map &map)
-{
- map(0x0000, 0x03ff).ram().share("nvram");
- map(0x6000, 0x6000).rw(FUNC(const_state::input2_r), FUNC(const_state::mux_w));
- map(0x8000, 0x8000).rw(FUNC(const_state::input1_r), FUNC(const_state::control_w));
- map(0xa000, 0xffff).rom();
-}
-
-void const_state::const_map(address_map &map)
-{
- map(0x0000, 0x07ff).ram();
- map(0x6000, 0x6000).rw(FUNC(const_state::input2_r), FUNC(const_state::mux_w));
- map(0x8000, 0x8000).rw(FUNC(const_state::input1_r), FUNC(const_state::control_w));
- map(0xa000, 0xffff).rom();
-}
-
-void const_state::sconst_map(address_map &map)
-{
- map(0x0000, 0x0fff).ram().share("nvram");
- map(0x1c00, 0x1c00).nopw(); // printer/clock?
- map(0x1d00, 0x1d00).nopw(); // printer/clock?
- map(0x1e00, 0x1e00).rw(FUNC(const_state::input2_r), FUNC(const_state::mux_w));
- map(0x1f00, 0x1f00).rw(FUNC(const_state::input1_r), FUNC(const_state::control_w));
- map(0x2000, 0xffff).rom();
-}
-
-
-
-/******************************************************************************
- Input Ports
-******************************************************************************/
-
-static INPUT_PORTS_START( nconst )
- PORT_START("IN.0")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_I) PORT_NAME("New Game")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_NAME("Multi Move / Player/Player / King")
-
- PORT_START("IN.1")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_U) PORT_NAME("Verify / Set Up")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_NAME("Best Move / Random / Queen")
-
- PORT_START("IN.2")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_Y) PORT_NAME("Change Color")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_NAME("Sound / Bishop")
-
- PORT_START("IN.3")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_T) PORT_NAME("Clear Board")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_NAME("Solve Mate / Knight")
-
- PORT_START("IN.4")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_NAME("Rook")
-
- PORT_START("IN.5")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_NAME("Pawn")
-
- PORT_START("IN.6")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_W) PORT_NAME("Hint / Show Moves")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_NAME("Set Level")
-
- PORT_START("IN.7")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_Q) PORT_NAME("Go")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_NAME("Take Back")
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( ssensor4 )
- PORT_INCLUDE( nconst )
-
- PORT_MODIFY("IN.0")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_NAME("Accessory / King")
-
- PORT_MODIFY("IN.1")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_NAME("Time Control / Queen")
-
- PORT_MODIFY("IN.4")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_R) PORT_NAME("Print Moves")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_NAME("Print Board / Rook")
-
- PORT_MODIFY("IN.5")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_NAME("Form Size")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_NAME("Print List / Pawn")
-
- PORT_MODIFY("IN.6")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_W) PORT_NAME("Hint")
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( nconstq )
- PORT_INCLUDE( nconst )
-
- PORT_MODIFY("IN.1")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_NAME("Best Move/Random / Training Level / Queen")
-
- PORT_MODIFY("IN.2")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_NAME("Sound / Depth Search / Bishop")
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( sconst )
- PORT_INCLUDE( nconstq )
-
- PORT_MODIFY("IN.4")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_R) PORT_NAME("Print Moves")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_NAME("Print Board / Rook")
-
- PORT_MODIFY("IN.5")
- PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_NAME("Form Size")
- PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_NAME("Print List / Acc. Time / Pawn")
-INPUT_PORTS_END
-
-
-
-/******************************************************************************
- Machine Configs
-******************************************************************************/
-
-void const_state::nconst(machine_config &config)
-{
- /* basic machine hardware */
- M6502(config, m_maincpu, 2_MHz_XTAL);
- m_maincpu->set_addrmap(AS_PROGRAM, &const_state::const_map);
-
- const attotime irq_period = attotime::from_hz(2_MHz_XTAL / 0x2000); // through 4020 IC, ~244Hz
- TIMER(config, m_irq_on).configure_periodic(FUNC(const_state::irq_on<M6502_IRQ_LINE>), irq_period);
- m_irq_on->set_start_delay(irq_period - attotime::from_nsec(17200)); // active for ~17.2us
- TIMER(config, "irq_off").configure_periodic(FUNC(const_state::irq_off<M6502_IRQ_LINE>), irq_period);
-
- 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(250));
-
- /* video hardware */
- PWM_DISPLAY(config, m_display).set_size(3, 8);
- config.set_default_layout(layout_novag_const);
-
- /* sound hardware */
- SPEAKER(config, "mono").front_center();
- BEEP(config, m_beeper, 2_MHz_XTAL / 0x800); // ~976Hz
- m_beeper->add_route(ALL_OUTPUTS, "mono", 0.25);
-}
-
-void const_state::ssensor4(machine_config &config)
-{
- nconst(config);
-
- /* basic machine hardware */
- m_maincpu->set_addrmap(AS_PROGRAM, &const_state::ssensor4_map);
-
- NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1);
-
- config.set_default_layout(layout_novag_ssensor4);
-}
-
-void const_state::nconst36(machine_config &config)
-{
- nconst(config);
-
- /* basic machine hardware */
- M65SC02(config.replace(), m_maincpu, 7.2_MHz_XTAL/2);
- m_maincpu->set_addrmap(AS_PROGRAM, &const_state::const_map);
-
- const attotime irq_period = attotime::from_hz(7.2_MHz_XTAL/2 / 0x2000); // through 4020 IC, ~439Hz
- TIMER(config.replace(), m_irq_on).configure_periodic(FUNC(const_state::irq_on<M6502_IRQ_LINE>), irq_period);
- m_irq_on->set_start_delay(irq_period - attotime::from_nsec(17200)); // same as nconst
- TIMER(config.replace(), "irq_off").configure_periodic(FUNC(const_state::irq_off<M6502_IRQ_LINE>), irq_period);
-
- m_board->set_delay(attotime::from_msec(200));
-
- /* sound hardware */
- BEEP(config.replace(), m_beeper, 7.2_MHz_XTAL/2 / 0x800); // ~1758Hz
- m_beeper->add_route(ALL_OUTPUTS, "mono", 0.25);
-}
-
-void const_state::nconst36a(machine_config &config)
-{
- nconst36(config);
-
- /* basic machine hardware */
- R65C02(config.replace(), m_maincpu, 7.2_MHz_XTAL/2);
- m_maincpu->set_addrmap(AS_PROGRAM, &const_state::const_map);
-
- // 4020 CLK is 7.2_MHz_XTAL/4, but with IRQ on Q11 instead of Q12, result
- // frequency and duty cycle are identical to nconst36
-
- /* sound hardware */
- BEEP(config.replace(), m_beeper, 7.2_MHz_XTAL/4 / 0x800); // ~879Hz
- m_beeper->add_route(ALL_OUTPUTS, "mono", 0.25);
-}
-
-void const_state::nconstq(machine_config &config)
-{
- nconst36a(config);
-
- /* basic machine hardware */
- m_maincpu->set_clock(8_MHz_XTAL/2);
-
- const attotime irq_period = attotime::from_hz(8_MHz_XTAL/4 / 0x1000); // through 4020 IC, ~488Hz
- TIMER(config.replace(), m_irq_on).configure_periodic(FUNC(const_state::irq_on<M6502_IRQ_LINE>), irq_period);
- m_irq_on->set_start_delay(irq_period - attotime::from_nsec(17200)); // same as nconst
- TIMER(config.replace(), "irq_off").configure_periodic(FUNC(const_state::irq_off<M6502_IRQ_LINE>), irq_period);
-
- config.set_default_layout(layout_novag_constq);
-
- /* sound hardware */
- BEEP(config.replace(), m_beeper, 8_MHz_XTAL/4 / 0x800); // ~976Hz
- m_beeper->add_route(ALL_OUTPUTS, "mono", 0.25);
-}
-
-void const_state::sconst(machine_config &config)
-{
- nconstq(config);
-
- /* basic machine hardware */
- M6502(config.replace(), m_maincpu, 8_MHz_XTAL/2); // UM6502C
- m_maincpu->set_addrmap(AS_PROGRAM, &const_state::sconst_map);
-
- 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);
-
- config.set_default_layout(layout_novag_supercon);
-}
-
-
-
-/******************************************************************************
- ROM Definitions
-******************************************************************************/
-
-ROM_START( ssensor4 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 )
- ROM_LOAD("5611_1i_orange.u4", 0xe000, 0x2000, CRC(f4ee99d1) SHA1(f44144a26b92c51f4350da85858470e6c3b66fc1) ) // TMM2364P
-ROM_END
-
-
-ROM_START( const )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 )
- ROM_LOAD("8315_white", 0xa000, 0x2000, CRC(76e6c97b) SHA1(55645e08f9f1258366c29a4ea2033bb86d860227) ) // TMM2364P
- ROM_LOAD("8314_orange", 0xe000, 0x2000, CRC(89395a86) SHA1(4807f196fec70abdaabff5bfc479a64d5cf2b0ad) ) // "
-ROM_END
-
-ROM_START( const36 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 )
- ROM_LOAD("novag-831a_6133-8316.u2", 0xc000, 0x4000, CRC(7da760f3) SHA1(6172e0fa03377e911141a86747849bf25f20613f) )
-ROM_END
-
-ROM_START( const36a )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 )
- ROM_LOAD("novag_854-501.u2", 0xc000, 0x4000, CRC(b083d5c4) SHA1(ecac8a599bd8ea8dd549c742ec45b94fb8b11af4) )
-ROM_END
-
-ROM_START( constq )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 )
- ROM_LOAD("novag_854-501.u2", 0xc000, 0x4000, CRC(b083d5c4) SHA1(ecac8a599bd8ea8dd549c742ec45b94fb8b11af4) )
-ROM_END
-
-
-ROM_START( supercon )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD("novag_8443", 0x0000, 0x8000, CRC(b853cf6e) SHA1(1a759072a5023b92c07f1fac01b7a21f7b5b45d0) )
- ROM_LOAD("novag_8442", 0x8000, 0x8000, CRC(c8f82331) SHA1(f7fd039f9a3344db9749931490ded9e9e309cfbe) )
-ROM_END
-
-} // anonymous namespace
-
-
-
-/******************************************************************************
- Drivers
-******************************************************************************/
-
-// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS
-CONS( 1981, ssensor4, 0, 0, ssensor4, ssensor4, const_state, empty_init, "Novag", "Super Sensor IV", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
-
-CONS( 1983, const, 0, 0, nconst, nconst, const_state, init_const, "Novag", "Constellation", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
-CONS( 1984, const36, const, 0, nconst36, nconst, const_state, init_const, "Novag", "Constellation 3.6MHz (set 1)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
-CONS( 1986, const36a, const, 0, nconst36a, nconst, const_state, init_const, "Novag", "Constellation 3.6MHz (set 2)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
-CONS( 1986, constq, const, 0, nconstq, nconstq, const_state, init_const, "Novag", "Constellation Quattro", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
-
-CONS( 1984, supercon, 0, 0, sconst, sconst, const_state, empty_init, "Novag", "Super Constellation", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )