// license:BSD-3-Clause // copyright-holders:hap // thanks-to:Berger, yoyo_chessboard /****************************************************************************** Fidelity Sensory Chess Challenger "9" (SC9) overview: - 8*(8+1) buttons, 8*8+1 LEDs - 36-pin edge connector, assume same as SC12 - 2KB RAM(TMM2016P), 2*8KB ROM(HN48364P) - R6502-13, 1.4MHz from resonator, another pcb with the same resonator was measured 1.49MHz* - PCB label 510-1046C01 2-1-82 *: 2 other boards were measured 1.60MHz and 1.88MHz(newest serial). Online references suggest 3 versions of SC9(C01) total: 1.5MHz, 1.6MHz, and 1.9MHz. I/O is via TTL, not further documented here 3 versions were available, the newest "B" version was 2MHz and included the Budapest program. The Playmatic S was only released in Germany, it's basically a 'deluxe' version of SC9 with magnet sensors and came with CB9 and CB16. Starting with SC9, Fidelity added a cartridge slot to their chess computers, meant for extra book opening databases and recorded games. Known modules (*denotes undumped): - CB9: Challenger Book Openings 1 - 8KB (label not known) - CB16: Challenger Book Openings 2 - 8+8KB 101-1042A01,02 - *CG64: 64 Greatest Games - *EOA-EOE: Challenger Book Openings - Chess Encyclopedia A-E (5 modules) The edge connector has D0-D7, A0-A13, 2 chip select lines, read/write lines, IRQ line. IRQ and write strobe are unused. Maximum known size is 16KB. ******************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "machine/sensorboard.h" #include "machine/timer.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "video/pwm.h" #include "bus/generic/slot.h" #include "bus/generic/carts.h" #include "softlist.h" #include "speaker.h" // internal artwork #include "fidel_playmatic.lh" // clickable #include "fidel_sc9.lh" // clickable namespace { // SC9 / shared class sc9_state : public driver_device { public: sc9_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_cart(*this, "cartslot"), m_inputs(*this, "IN.0") { } // machine drivers void sc9b(machine_config &config); void sc9c(machine_config &config); void sc9d(machine_config &config); void playmatic(machine_config &config); protected: virtual void machine_start() override; // devices/pointers required_device m_maincpu; required_device m_irq_on; required_device m_board; required_device m_display; required_device m_dac; required_device m_cart; required_ioport m_inputs; // address maps void sc9_map(address_map &map); void sc9d_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); } DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load); // I/O handlers void update_display(); DECLARE_WRITE8_MEMBER(control_w); DECLARE_WRITE8_MEMBER(led_w); DECLARE_READ8_MEMBER(input_r); DECLARE_READ8_MEMBER(input_d7_r); u8 m_inp_mux; u8 m_led_data; }; void sc9_state::machine_start() { // zerofill m_inp_mux = 0; m_led_data = 0; // register for savestates save_item(NAME(m_inp_mux)); save_item(NAME(m_led_data)); } // SC9C class sc9c_state : public sc9_state { public: sc9c_state(const machine_config &mconfig, device_type type, const char *tag) : sc9_state(mconfig, type, tag) { } DECLARE_INPUT_CHANGED_MEMBER(sc9c_cpu_freq) { sc9c_set_cpu_freq(); } protected: virtual void machine_reset() override; void sc9c_set_cpu_freq(); }; void sc9c_state::machine_reset() { sc9_state::machine_reset(); sc9c_set_cpu_freq(); } void sc9c_state::sc9c_set_cpu_freq() { // SC9(C01) was released with 1.5MHz, 1.6MHz, or 1.9MHz CPU u8 inp = ioport("FAKE")->read(); m_maincpu->set_unscaled_clock((inp & 2) ? 1900000 : ((inp & 1) ? 1600000 : 1500000)); } /****************************************************************************** I/O ******************************************************************************/ // cartridge DEVICE_IMAGE_LOAD_MEMBER(sc9_state::cart_load) { u32 size = m_cart->common_get_size("rom"); m_cart->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom"); return image_init_result::PASS; } // TTL/generic void sc9_state::update_display() { // 8*8 chessboard leds + 1 corner led m_display->matrix(1 << m_inp_mux, m_led_data); } WRITE8_MEMBER(sc9_state::control_w) { // d0-d3: 74245 P0-P3 // 74245 Q0-Q8: input mux, led select m_inp_mux = data & 0xf; update_display(); // 74245 Q9: speaker out m_dac->write(BIT(1 << m_inp_mux, 9)); // d4,d5: ? // d6,d7: N/C } WRITE8_MEMBER(sc9_state::led_w) { // a0-a2,d0: led data via NE591N m_led_data = (m_led_data & ~(1 << offset)) | ((data & 1) << offset); update_display(); } READ8_MEMBER(sc9_state::input_r) { u8 data = 0; // d0-d7: multiplexed inputs (active low) // read chessboard sensors if (m_inp_mux < 8) data = m_board->read_file(m_inp_mux); // read button panel else if (m_inp_mux == 8) data = m_inputs->read(); return ~data; } READ8_MEMBER(sc9_state::input_d7_r) { // a0-a2,d7: multiplexed inputs return (input_r(space, 0) >> offset & 1) ? 0x80 : 0; } /****************************************************************************** Address Maps ******************************************************************************/ void sc9_state::sc9_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x07ff).mirror(0x1800).ram(); map(0x2000, 0x5fff).r("cartslot", FUNC(generic_slot_device::read_rom)); map(0x6000, 0x6000).mirror(0x1fff).w(FUNC(sc9_state::control_w)); map(0x8000, 0x8007).mirror(0x1ff8).w(FUNC(sc9_state::led_w)).nopr(); map(0xa000, 0xa000).mirror(0x1fff).r(FUNC(sc9_state::input_r)); map(0xc000, 0xffff).rom(); } void sc9_state::sc9d_map(address_map &map) { sc9_map(map); map(0xa000, 0xa007).mirror(0x1ff8).r(FUNC(sc9_state::input_d7_r)); } /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( sc9 ) PORT_START("IN.0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("RV / Pawn") PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("DM / Knight") PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("TB / Bishop") PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("LV / Rook") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("PV / Queen") PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("PB / King") PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_DEL) PORT_NAME("CL") PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_R) PORT_NAME("RE") INPUT_PORTS_END static INPUT_PORTS_START( sc9c ) PORT_INCLUDE( sc9 ) PORT_START("FAKE") PORT_CONFNAME( 0x03, 0x00, "CPU Frequency" ) PORT_CHANGED_MEMBER(DEVICE_SELF, sc9c_state, sc9c_cpu_freq, 0) // factory set PORT_CONFSETTING( 0x00, "1.5MHz" ) PORT_CONFSETTING( 0x01, "1.6MHz" ) PORT_CONFSETTING( 0x02, "1.9MHz" ) INPUT_PORTS_END /****************************************************************************** Machine Drivers ******************************************************************************/ void sc9_state::sc9d(machine_config &config) { /* basic machine hardware */ M6502(config, m_maincpu, 3.9_MHz_XTAL/2); // R6502AP, 3.9MHz resonator m_maincpu->set_addrmap(AS_PROGRAM, &sc9_state::sc9d_map); const attotime irq_period = attotime::from_hz(610); // from 555 timer (22nF, 102K, 2.7K) TIMER(config, m_irq_on).configure_periodic(FUNC(sc9_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(sc9_state::irq_off), 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(200)); /* video hardware */ PWM_DISPLAY(config, m_display).set_size(9, 8); config.set_default_layout(layout_fidel_sc9); /* 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); /* cartridge */ GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "fidel_scc", "bin,dat"); m_cart->set_device_load(FUNC(sc9_state::cart_load)); SOFTWARE_LIST(config, "cart_list").set_original("fidel_scc"); } void sc9_state::sc9b(machine_config &config) { sc9d(config); /* basic machine hardware */ m_maincpu->set_clock(1500000); // from ceramic resonator "681 JSA", measured m_maincpu->set_addrmap(AS_PROGRAM, &sc9_state::sc9_map); } void sc9_state::playmatic(machine_config &config) { sc9b(config); /* basic machine hardware */ m_maincpu->set_clock(1500000 * 2); // advertised as double the speed of SC9 m_board->set_type(sensorboard_device::MAGNETS); config.set_default_layout(layout_fidel_playmatic); } /****************************************************************************** ROM Definitions ******************************************************************************/ ROM_START( fscc9 ) // PCB label 510-1046D01 ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD("101-1034b01", 0xc000, 0x2000, CRC(65288753) SHA1(651f5ca5969ddd72a20cbebdec2de83c4bf10650) ) ROM_LOAD("101-1034c02", 0xe000, 0x2000, CRC(238b092f) SHA1(7ddffc6dba822aee9d8ad6815b23024ed5cdfd26) ) ROM_END ROM_START( fscc9b ) // PCB label 510-1046B01 ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD("101-1034a01", 0xc000, 0x2000, CRC(b845c458) SHA1(d3fda65dbd9fae44fa4b93f8207839d8fa0c367a) ) ROM_LOAD("101-1034a02", 0xe000, 0x2000, CRC(ecfa0a4c) SHA1(738df99a250fad0b1da5ebeb8c92a9ad1461417b) ) ROM_END ROM_START( fscc9c ) // PCB label 510-1046C01 ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD("101-1034a01", 0xc000, 0x2000, CRC(b845c458) SHA1(d3fda65dbd9fae44fa4b93f8207839d8fa0c367a) ) // HN48364P ROM_LOAD("101-1034b02", 0xe000, 0x2000, CRC(cbaf97d7) SHA1(7ed8e68bb74713d9e2ff1d9c037012320b7bfcbf) ) // " ROM_END ROM_START( fscc9ps ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD("play64c1.bin", 0xc000, 0x2000, CRC(e96aa95d) SHA1(16d90cf0ef166aef579d442671290a2c43e24dfe) ) ROM_LOAD("play64en.bin", 0xe000, 0x2000, CRC(6fa188d2) SHA1(1b9b0209c496c89ecb7f9ec07bfd9429ff9b275e) ) ROM_END } // anonymous namespace /****************************************************************************** Drivers ******************************************************************************/ // YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS CONS( 1982, fscc9, 0, 0, sc9d, sc9, sc9_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger 9 (rev. D)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) // aka version "B" CONS( 1982, fscc9b, fscc9, 0, sc9b, sc9, sc9_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger 9 (rev. B)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) CONS( 1982, fscc9c, fscc9, 0, sc9b, sc9c, sc9c_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger 9 (rev. C)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) CONS( 1983, fscc9ps, fscc9, 0, playmatic, sc9, sc9_state, empty_init, "Fidelity Deutschland", "Sensory 9 Playmatic S", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )