// license:BSD-3-Clause // copyright-holders:hap // thanks-to:yoyo_chessboard /****************************************************************************** Fidelity Dame Sensory Challenger (DSC) Hardware notes: - Z80A CPU @ 3.9MHz - 8KB ROM(MOS 2364), 1KB RAM(2*TMM314APL) - 4-digit 7seg panel, sensory board with 50 buttons - PCB label 510-1030A01 It's a checkers game for once instead of chess. When playing it on MAME with the sensorboard device, use the modifier keys (eg. hold CTRL to ignore sensor). The game expects the player to press a sensor only once when doing a multiple capture. TODO: - doesn't announce winner/loser when the game ends, or is this normal? ******************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/sensorboard.h" #include "machine/timer.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "video/pwm.h" #include "speaker.h" // internal artwork #include "fidel_dsc.lh" // clickable namespace { class dsc_state : public driver_device { public: dsc_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_dac(*this, "dac"), m_inputs(*this, "IN.%u", 0) { } // machine drivers void dsc(machine_config &config); protected: virtual void machine_start() override; private: // devices/pointers required_device m_maincpu; required_device m_irq_on; required_device m_board; required_device m_display; required_device m_dac; required_ioport_array<2> m_inputs; // address maps void main_map(address_map &map); // periodic interrupts template TIMER_DEVICE_CALLBACK_MEMBER(irq_on) { m_maincpu->set_input_line(Line, ASSERT_LINE); } template TIMER_DEVICE_CALLBACK_MEMBER(irq_off) { m_maincpu->set_input_line(Line, CLEAR_LINE); } // I/O handlers void update_display(); DECLARE_WRITE8_MEMBER(control_w); DECLARE_WRITE8_MEMBER(select_w); DECLARE_READ8_MEMBER(input_r); void init_board(int state); u8 read_board_row(u8 row); u8 m_inp_mux; u8 m_led_select; }; void dsc_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)); } /****************************************************************************** I/O ******************************************************************************/ // sensorboard handlers void dsc_state::init_board(int state) { for (int i = 0; i < 20; i++) { m_board->write_piece(i % 5, i / 5, 1); // white m_board->write_piece(i % 5, i / 5 + 6, 3); // black } } u8 dsc_state::read_board_row(u8 row) { u8 data = 0; // inputs to sensorboard translation table static const u8 lut_i2sb[64] = { 0x00, 0x50, 0x60, 0x70, 0x40, 0x30, 0x20, 0x10, 0x01, 0x51, 0x61, 0x71, 0x41, 0x31, 0x21, 0x11, 0x02, 0x52, 0x62, 0x72, 0x42, 0x32, 0x22, 0x12, 0x03, 0x83, 0x84, 0x82, 0x91, 0x81, 0x90, 0x80, 0xff, 0x93, 0x94, 0x92, 0xff, 0xff, 0xff, 0xff, 0x04, 0x53, 0x63, 0x73, 0x43, 0x33, 0x23, 0x13, 0xff, 0x54, 0x64, 0x74, 0x44, 0x34, 0x24, 0x14, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; for (int i = 0; i < 8; i++) { u8 pos = lut_i2sb[row * 8 + i]; data = data << 1 | m_board->read_sensor(pos & 0xf, pos >> 4); } return data; } // TTL void dsc_state::update_display() { // 4 7seg leds m_display->matrix(m_led_select, m_inp_mux); } WRITE8_MEMBER(dsc_state::control_w) { // d0-d7: input mux, 7seg data m_inp_mux = data; update_display(); } WRITE8_MEMBER(dsc_state::select_w) { // d4: speaker out m_dac->write(BIT(~data, 4)); // d0-d3: digit select m_led_select = data & 0xf; update_display(); } READ8_MEMBER(dsc_state::input_r) { u8 data = 0; // d0-d7: multiplexed inputs (active low) for (int i = 0; i < 8; i++) if (BIT(~m_inp_mux, i)) { // read checkerboard data |= read_board_row(i); // read other buttons if (i >= 6) data |= m_inputs[i - 6]->read(); } return ~data; } /****************************************************************************** Address Maps ******************************************************************************/ void dsc_state::main_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x1fff).rom(); map(0x4000, 0x4000).mirror(0x1fff).w(FUNC(dsc_state::control_w)); map(0x6000, 0x6000).mirror(0x1fff).w(FUNC(dsc_state::select_w)); map(0x8000, 0x8000).mirror(0x1fff).r(FUNC(dsc_state::input_r)); map(0xa000, 0xa3ff).mirror(0x1c00).ram(); } /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( dsc ) PORT_START("IN.0") PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("Black King") PORT_START("IN.1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("Black") PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("White King") PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("White") PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("RV") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("RE") PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("PB") PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("LV") PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("CL") INPUT_PORTS_END /****************************************************************************** Machine Drivers ******************************************************************************/ void dsc_state::dsc(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, 3.9_MHz_XTAL); // 3.9MHz resonator m_maincpu->set_addrmap(AS_PROGRAM, &dsc_state::main_map); const attotime irq_period = attotime::from_hz(523); // from 555 timer (22nF, 120K, 2.7K) TIMER(config, m_irq_on).configure_periodic(FUNC(dsc_state::irq_on), irq_period); m_irq_on->set_start_delay(irq_period - attotime::from_usec(41)); // active for 41us TIMER(config, "irq_off").configure_periodic(FUNC(dsc_state::irq_off), irq_period); SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS); m_board->init_cb().set(FUNC(dsc_state::init_board)); m_board->set_size(5, 10); // 2 columns per x (eg. square 1 & 6 are same x) m_board->set_spawnpoints(4); m_board->set_delay(attotime::from_msec(100)); /* video hardware */ PWM_DISPLAY(config, m_display).set_size(4, 8); m_display->set_segmask(0xf, 0x7f); config.set_default_layout(layout_fidel_dsc); /* sound hardware */ SPEAKER(config, "speaker").front_center(); DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25); VOLTAGE_REGULATOR(config, "vref").add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); } /****************************************************************************** ROM Definitions ******************************************************************************/ ROM_START( damesc ) // model DSC ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "101-1027a01", 0x0000, 0x2000, CRC(d86c985c) SHA1(20f923a24420050fd16e1172f5e889f144d17ac9) ) // MOS 2364 ROM_END } // anonymous namespace /****************************************************************************** Drivers ******************************************************************************/ // YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS CONS( 1981, damesc, 0, 0, dsc, dsc, dsc_state, empty_init, "Fidelity Electronics", "Dame Sensory Challenger", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )