// license:BSD-3-Clause // copyright-holders:Jonathan Gevaryahu, Sandro Ronco, hap // thanks-to:Berger, Sean Riddle /****************************************************************************** Fidelity CC10 / Fidelity ACR TODO: - What is cc10 8255 PB.7 for? When set, maximum levels is 3, like in CC3. But there is no CC3 with 16 buttons, and things get glitchy in this mode. ******************************************************************************* Fidelity Chess Challenger 10 (CCX) ------------------- 3 versions are known to exist: A,B,C. Strangely, version C(UCC10) has an 8080 instead of Z80 and no beeper, it's on CC1-based hardware. Z80A CPU @ 4MHz, NEC D8255C 4KB ROM(NEC 2332A), 2*256 bytes RAM(4*NEC 2111AL-4) The beeper is via a 556 timer, fixed-frequency at around 1300-1400Hz. Checker Challenger 4 (ACR) is on the same PCB, twice less RAM and the beeper gone. ******************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/bankdev.h" #include "machine/i8255.h" #include "machine/timer.h" #include "sound/beep.h" #include "video/pwm.h" #include "speaker.h" // internal artwork #include "fidel_acr.lh" // clickable #include "fidel_cc10.lh" // clickable namespace { class ccx_state : public driver_device { public: ccx_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_mainmap(*this, "mainmap"), m_ppi8255(*this, "ppi8255"), m_display(*this, "display"), m_beeper_off(*this, "beeper_off"), m_beeper(*this, "beeper"), m_inputs(*this, "IN.%u", 0) { } // RE button is tied to Z80 RESET pin DECLARE_INPUT_CHANGED_MEMBER(reset_button) { m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? ASSERT_LINE : CLEAR_LINE); } // machine drivers void acr(machine_config &config); void ccx(machine_config &config); protected: virtual void machine_start() override; private: // devices/pointers required_device m_maincpu; required_device m_mainmap; required_device m_ppi8255; required_device m_display; optional_device m_beeper_off; optional_device m_beeper; required_ioport_array<4> m_inputs; TIMER_DEVICE_CALLBACK_MEMBER(beeper_off) { m_beeper->set_state(0); } // address maps void acr_map(address_map &map); void ccx_map(address_map &map); void main_trampoline(address_map &map); void main_io(address_map &map); u8 main_trampoline_r(offs_t offset); void main_trampoline_w(offs_t offset, u8 data); // I/O handlers void update_display(); DECLARE_WRITE8_MEMBER(ppi_porta_w); DECLARE_WRITE8_MEMBER(ppi_portb_w); DECLARE_READ8_MEMBER(ppi_portc_r); DECLARE_WRITE8_MEMBER(ppi_portc_w); u8 m_inp_mux; u8 m_led_select; u8 m_7seg_data; }; void ccx_state::machine_start() { // zerofill m_inp_mux = 0; m_led_select = 0; m_7seg_data = 0; // register for savestates save_item(NAME(m_inp_mux)); save_item(NAME(m_led_select)); save_item(NAME(m_7seg_data)); } /****************************************************************************** I/O ******************************************************************************/ // I8255 PPI void ccx_state::update_display() { // 4 7segs + 2 leds m_display->matrix(m_led_select, m_7seg_data); } WRITE8_MEMBER(ccx_state::ppi_porta_w) { // d7: enable beeper on falling edge (556 monostable) (unpopulated on ACR) if (m_beeper != nullptr && ~data & m_7seg_data & 0x80 && !m_beeper_off->enabled()) { m_beeper->set_state(1); m_beeper_off->adjust(attotime::from_msec(80)); // duration is approximate } // d0-d6: digit segment data m_7seg_data = bitswap<8>(data,7,0,1,2,3,4,5,6); update_display(); } WRITE8_MEMBER(ccx_state::ppi_portb_w) { // d0: lose led, d1: check(win) led // d2-d5: digit select m_led_select = bitswap<6>(data,0,1,5,4,3,2); update_display(); } READ8_MEMBER(ccx_state::ppi_portc_r) { u8 data = 0; // d0-d3: multiplexed inputs (active low) for (int i = 0; i < 4; i++) if (BIT(m_inp_mux, i)) data |= m_inputs[i]->read(); return ~data & 0xf; } WRITE8_MEMBER(ccx_state::ppi_portc_w) { // d4-d7: input mux (inverted) m_inp_mux = ~data >> 4 & 0xf; } /****************************************************************************** Address Maps ******************************************************************************/ void ccx_state::acr_map(address_map &map) { map.unmap_value_high(); map(0x0000, 0x0fff).rom().region("maincpu", 0); // _A12 map(0x2000, 0x20ff).mirror(0x0f00).ram(); // A13 } void ccx_state::ccx_map(address_map &map) { acr_map(map); map(0x4000, 0x40ff).mirror(0x0f00).ram(); // A14 } // PCB design is prone to bus conflicts, but assuming software behaves fine, // it will access ROM at $0xxx, RAM at $3xxx and $5xxx void ccx_state::main_trampoline_w(offs_t offset, u8 data) { if (offset & 0x2000) m_mainmap->write8(offset & 0x2fff, data); if (offset & 0x4000) m_mainmap->write8(offset & 0x4fff, data); } u8 ccx_state::main_trampoline_r(offs_t offset) { u8 data = 0xff; if (~offset & 0x1000) data &= m_mainmap->read8(offset & 0x0fff); if (offset & 0x2000) data &= m_mainmap->read8(offset & 0x2fff); if (offset & 0x4000) data &= m_mainmap->read8(offset & 0x4fff); return data; } void ccx_state::main_trampoline(address_map &map) { map.global_mask(0x7fff); map(0x0000, 0x7fff).rw(FUNC(ccx_state::main_trampoline_r), FUNC(ccx_state::main_trampoline_w)); } void ccx_state::main_io(address_map &map) { map.global_mask(0x03); map(0x00, 0x03).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write)); } /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( ccx ) PORT_START("IN.0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("LV") PORT_CODE(KEYCODE_L) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("A1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_A) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("E5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_E) PORT_START("IN.1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Speaker") PORT_CODE(KEYCODE_SPACE) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("DM") PORT_CODE(KEYCODE_M) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("B2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_B) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("F6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_F) PORT_START("IN.2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("CL") PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PB") PORT_CODE(KEYCODE_O) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("C3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_C) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("G7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_G) PORT_START("IN.3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("EN") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PV") PORT_CODE(KEYCODE_V) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("D4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_D) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("H8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_H) PORT_START("RESET") // is not on matrix IN.0 d0 PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RE") PORT_CODE(KEYCODE_R) PORT_CHANGED_MEMBER(DEVICE_SELF, ccx_state, reset_button, 0) INPUT_PORTS_END static INPUT_PORTS_START( acr ) PORT_START("IN.0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("LV") PORT_CODE(KEYCODE_L) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PV") PORT_CODE(KEYCODE_V) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_START("IN.1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("CL") PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_START("IN.2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("TO") PORT_CODE(KEYCODE_T) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_START("IN.3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("EN") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_START("RESET") // is not on matrix IN.0 d0 PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RE") PORT_CODE(KEYCODE_R) PORT_CHANGED_MEMBER(DEVICE_SELF, ccx_state, reset_button, 0) INPUT_PORTS_END /****************************************************************************** Machine Drivers ******************************************************************************/ void ccx_state::acr(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, 4_MHz_XTAL); m_maincpu->set_addrmap(AS_PROGRAM, &ccx_state::main_trampoline); ADDRESS_MAP_BANK(config, m_mainmap).set_map(&ccx_state::acr_map).set_options(ENDIANNESS_LITTLE, 8, 16); m_maincpu->set_addrmap(AS_IO, &ccx_state::main_io); I8255(config, m_ppi8255); m_ppi8255->out_pa_callback().set(FUNC(ccx_state::ppi_porta_w)); m_ppi8255->tri_pa_callback().set_constant(0); m_ppi8255->in_pb_callback().set_constant(0); m_ppi8255->out_pb_callback().set(FUNC(ccx_state::ppi_portb_w)); m_ppi8255->tri_pb_callback().set_constant(0); m_ppi8255->in_pc_callback().set(FUNC(ccx_state::ppi_portc_r)); m_ppi8255->out_pc_callback().set(FUNC(ccx_state::ppi_portc_w)); /* video hardware */ PWM_DISPLAY(config, m_display).set_size(6, 8); m_display->set_segmask(0xf, 0x7f); config.set_default_layout(layout_fidel_acr); } void ccx_state::ccx(machine_config &config) { acr(config); /* basic machine hardware */ m_mainmap->set_addrmap(AS_PROGRAM, &ccx_state::ccx_map); config.set_default_layout(layout_fidel_cc10); /* sound hardware */ SPEAKER(config, "speaker").front_center(); BEEP(config, m_beeper, 1360); // approximation, from 556 timer ic m_beeper->add_route(ALL_OUTPUTS, "speaker", 0.25); TIMER(config, "beeper_off").configure_generic(FUNC(ccx_state::beeper_off)); } /****************************************************************************** ROM Definitions ******************************************************************************/ ROM_START( cc10 ) // model CCX, PCB label P241C-1 ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "cn19053n_cc10b", 0x0000, 0x1000, CRC(afd3ca99) SHA1(870d09b2b52ccb8572d69642c59b5215d5fb26ab) ) // 2332 ROM_END ROM_START( cc10a ) // model CCX ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "cc-10", 0x0000, 0x1000, CRC(853db345) SHA1(36799e204eb0aef915eb483a5f43372fca5a0fc0) ) // MCM68A332P ROM_END ROM_START( checkc4 ) // model ACR, PCB label P241C ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "d2332c_043", 0x0000, 0x1000, CRC(4c251d90) SHA1(474d54b05971f2a3208bab56dc6e27f03781c541) ) // no custom label ROM_END } // anonymous namespace /****************************************************************************** Drivers ******************************************************************************/ // YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS CONS( 1978, cc10, 0, 0, ccx, ccx, ccx_state, empty_init, "Fidelity Electronics", "Chess Challenger 10 (model CCX, rev. B)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) CONS( 1978, cc10a, cc10, 0, ccx, ccx, ccx_state, empty_init, "Fidelity Electronics", "Chess Challenger 10 (model CCX)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) // aka version A CONS( 1978, checkc4, 0, 0, acr, acr, ccx_state, empty_init, "Fidelity Electronics", "Checker Challenger 4", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_NO_SOUND_HW )