// license:BSD-3-Clause // copyright-holders:hap // thanks-to:Berger /****************************************************************************** CXG Sphinx Dominator, chess computer. Hardware notes: - R65C02P4 @ 4MHz - 32KB ROM, 8KB RAM battery-backed - Sanyo LC7582, 2 LCD panels (each 4-digit) - TTL, piezo, 8*8+8 LEDs, button sensors Sphinx Galaxy is assumed to be on similar hardware. The chess engine is by Frans Morsch, older versions (before 2.05) were buggy. It's also used in the newer Mephisto Modena. TODO: - artwork - buttons ******************************************************************************/ #include "emu.h" #include "cpu/m6502/r65c02.h" #include "machine/nvram.h" #include "machine/sensorboard.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "video/pwm.h" #include "video/lc7582.h" #include "speaker.h" // internal artwork //#include "cxg_dominator.lh" // clickable namespace { class dominator_state : public driver_device { public: dominator_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_lcd(*this, "lcd"), m_display(*this, "display"), m_board(*this, "board"), m_dac(*this, "dac"), m_inputs(*this, "IN.%u", 0), m_digits(*this, "digit%u", 0U), m_dp(*this, "dp%u", 0U) { } // machine drivers void dominator(machine_config &config); protected: virtual void machine_start() override; private: // devices/pointers required_device m_maincpu; required_device m_lcd; required_device m_display; required_device m_board; required_device m_dac; required_ioport_array<2> m_inputs; output_finder<8> m_digits; output_finder<2> m_dp; // address maps void main_map(address_map &map); // I/O handlers DECLARE_WRITE64_MEMBER(lcd_s_w); DECLARE_WRITE8_MEMBER(control_w); DECLARE_WRITE8_MEMBER(leds_w); DECLARE_READ8_MEMBER(input_r); }; void dominator_state::machine_start() { m_digits.resolve(); m_dp.resolve(); } /****************************************************************************** I/O ******************************************************************************/ // LCD WRITE64_MEMBER(dominator_state::lcd_s_w) { u8 d[4]; // 1st digit: S1-S9, unused middle vertical segments // 2nd digit: S10-S18, unused bottom-right diagonal segment // 3rd digit: S21-S27 // 4th digit: S28-S34 d[0] = bitswap<9>(data >> 0 & 0x1ff, 2,7,5,4,3,1,0,8,6) & 0x7f; d[1] = bitswap<9>(data >> 9 & 0x1ff, 7,6,4,2,0,8,5,3,1) & 0x7f; d[2] = bitswap<7>(data >> 20 & 0x7f, 3,5,1,0,2,6,4); d[3] = bitswap<7>(data >> 27 & 0x7f, 4,2,0,6,5,3,1); for (int i = 0; i < 4; i++) m_digits[offset * 4 + i] = d[i]; // colon: S17 (part of 2nd digit) m_dp[offset] = BIT(data, 16); } // TTL WRITE8_MEMBER(dominator_state::control_w) { // d0: LC7582 DATA // d1: LC7582 CLK // d2: LC7582 CE m_lcd->data_w(BIT(data, 0)); m_lcd->clk_w(BIT(data, 1)); m_lcd->ce_w(BIT(data, 2)); // d3: speaker out m_dac->write(BIT(data, 3)); } WRITE8_MEMBER(dominator_state::leds_w) { // led data m_display->matrix(1 << offset, data); } READ8_MEMBER(dominator_state::input_r) { u8 data = 0; // read chessboard sensors if (offset < 8) data = m_board->read_rank(offset); // read other buttons else if (offset < 10) data = m_inputs[offset - 8]->read(); return ~data; } /****************************************************************************** Address Maps ******************************************************************************/ void dominator_state::main_map(address_map &map) { map(0x0000, 0x1fff).ram(); //.share("nvram"); map(0x4000, 0x400f).rw(FUNC(dominator_state::input_r), FUNC(dominator_state::leds_w)); map(0x4010, 0x4010).w(FUNC(dominator_state::control_w)); //map(0x7f00, 0x7fff).nopr(); // mid-opcode dummy read map(0x8000, 0xffff).rom(); } /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( dominator ) PORT_START("IN.0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_START("IN.1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_Q) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_W) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_R) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_T) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_Y) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_U) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_I) INPUT_PORTS_END /****************************************************************************** Machine Drivers ******************************************************************************/ void dominator_state::dominator(machine_config &config) { /* basic machine hardware */ R65C02(config, m_maincpu, 4_MHz_XTAL); m_maincpu->set_addrmap(AS_PROGRAM, &dominator_state::main_map); const attotime irq_period = attotime::from_hz(4_MHz_XTAL / 0x2000); // from 4020 m_maincpu->set_periodic_int(FUNC(dominator_state::nmi_line_pulse), 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(150)); /* video hardware */ LC7582(config, m_lcd, 0); m_lcd->write_segs().set(FUNC(dominator_state::lcd_s_w)); PWM_DISPLAY(config, m_display).set_size(10, 8); //config.set_default_layout(layout_cxg_dominator); /* 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( sdtor ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD("22p_2.05", 0x8000, 0x8000, CRC(9707119c) SHA1(d7cde835a37bd5d9ff349a871c890ea4cd9b2c26) ) ROM_END } // anonymous namespace /****************************************************************************** Drivers ******************************************************************************/ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS */ CONS( 1989, sdtor, 0, 0, dominator, dominator, dominator_state, empty_init, "CXG", "Sphinx Dominator (v2.05)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_NOT_WORKING )