// license:BSD-3-Clause // copyright-holders:hap // thanks-to:Berger /****************************************************************************** AVE Micro Systems ARB chess computer driver, in some regions redistributed by Chafitz, and in Germany by Sandy Electronic. Auto Response Board (ARB) overview: - R6502P CPU @ 2MHz(4MHz XTAL), R6522P VIA - 2KB RAM(4*2114), cartridge port - magnetic chessboard, 8*8+12 leds - PCB label AV001C01 REV A The electronic magnetic chessboard is the first of its kind. AVE later licensed it to Fidelity (see fidel_elite.cpp). ARB is a romless system, the program ROM is on a cartridge. Known chess modules (*denotes not dumped yet): - Sargon 2.5 - *Grand Master Series 3 - *Grand Master Series 3.5 - Grand Master Series 4.0 Other games: - *Avelan (checkers) Newer modules included button label stickers for OPTIONS, Verify, Take Back, Clear. Around 2012, Steve Braid(aka Trilobyte/Steve UK) started manufacturing ARB V2 boards without a module slot. CPU and VIA were replaced with new WDC 14MHz-rated chips, running at 16MHz. TODO: - verify gms40 module memory layout - need to add checkers pieces and custom initial position when Avelan gets dumped ******************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "cpu/m6502/m65c02.h" #include "video/pwm.h" #include "machine/sensorboard.h" #include "machine/6522via.h" #include "machine/nvram.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "bus/generic/slot.h" #include "bus/generic/carts.h" #include "speaker.h" #include "softlist.h" // internal artwork #include "ave_arb.lh" // clickable namespace { class arb_state : public driver_device { public: arb_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_display(*this, "display"), m_board(*this, "board"), m_via(*this, "via"), m_dac(*this, "dac"), m_cart(*this, "cartslot"), m_inputs(*this, "IN.%u", 0) { } // halt button is tied to NMI, reset button to RESET(but only if halt button is held) DECLARE_INPUT_CHANGED_MEMBER(reset_button) { update_reset(); } DECLARE_INPUT_CHANGED_MEMBER(halt_button) { m_maincpu->set_input_line(M6502_NMI_LINE, newval ? ASSERT_LINE : CLEAR_LINE); update_reset(); } void update_reset(); // machine configs void arb(machine_config &config); void v2(machine_config &config); protected: virtual void machine_start() override; private: // devices/pointers required_device m_maincpu; required_device m_display; required_device m_board; required_device m_via; required_device m_dac; optional_device m_cart; required_ioport_array<2> m_inputs; // address maps void main_map(address_map &map); void v2_map(address_map &map); // cartridge DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load); u8 cartridge_r(offs_t offset); u32 m_cart_mask; // I/O handlers void update_display(); void leds_w(u8 data); void control_w(u8 data); u8 input_r(); u16 m_inp_mux = 0; u16 m_led_select = 0; u8 m_led_group = 0; u8 m_led_latch = 0; u16 m_led_data = 0; }; void arb_state::machine_start() { // register for savestates save_item(NAME(m_inp_mux)); save_item(NAME(m_led_select)); save_item(NAME(m_led_group)); save_item(NAME(m_led_latch)); save_item(NAME(m_led_data)); } void arb_state::update_reset() { bool state = m_inputs[1]->read() == 3; // RESET goes to 6502+6522 m_maincpu->set_input_line(INPUT_LINE_RESET, state ? ASSERT_LINE : CLEAR_LINE); if (state) m_via->reset(); } /****************************************************************************** I/O ******************************************************************************/ // cartridge DEVICE_IMAGE_LOAD_MEMBER(arb_state::cart_load) { u32 size = m_cart->common_get_size("rom"); m_cart_mask = ((1 << (31 - count_leading_zeros(size))) - 1) & 0x7fff; m_cart->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom"); // extra ram (optional) if (image.get_feature("ram")) m_maincpu->space(AS_PROGRAM).install_ram(0x0800, 0x0fff, 0x1000, nullptr); return image_init_result::PASS; } u8 arb_state::cartridge_r(offs_t offset) { return m_cart->read_rom(offset & m_cart_mask); } // R6522 ports void arb_state::update_display() { // 12 led column data lines via 3 7475 u16 mask = 0; mask |= (m_led_group & 1) ? 0xf00 : 0; mask |= (m_led_group & 2) ? 0x0ff : 0; m_led_data = (m_led_data & ~mask) | ((m_led_latch << 8 | m_led_latch) & mask); m_display->matrix(m_led_select | 0x200, m_led_data); } void arb_state::leds_w(u8 data) { // PA0-PA7: led latch input m_led_latch = ~data & 0xff; update_display(); } void arb_state::control_w(u8 data) { // PB0-PB3: 74145 A-D // 74145 0-8: input mux, led row select m_inp_mux = data & 0xf; m_led_select = 1 << (data & 0xf) & 0x1ff; // PB4,PB5: led group select m_led_group = data >> 4 & 3; update_display(); // PB7: speaker out m_dac->write(BIT(data, 7)); } u8 arb_state::input_r() { u8 data = 0; // PA0-PA7: multiplexed inputs if (m_inp_mux < 8) data = m_board->read_file(m_inp_mux); else if (m_inp_mux < 9) data = m_inputs[m_inp_mux - 8]->read(); return ~data; } /****************************************************************************** Address Maps ******************************************************************************/ void arb_state::main_map(address_map &map) { // external slot is A0-A14, potential bus conflict with RAM/VIA map(0x0000, 0x7fff).mirror(0x8000).r(FUNC(arb_state::cartridge_r)); map(0x0000, 0x07ff).mirror(0x1000).ram().share("nvram"); map(0x8000, 0x800f).mirror(0x1ff0).m(m_via, FUNC(via6522_device::map)); } void arb_state::v2_map(address_map &map) { map(0x0000, 0x7fff).ram().share("nvram"); // BS62LV256 map(0x8000, 0x800f).mirror(0x1ff0).m(m_via, FUNC(via6522_device::map)); map(0xa000, 0xffff).rom(); } /****************************************************************************** Input Ports ******************************************************************************/ static INPUT_PORTS_START( arb ) PORT_START("IN.0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_H) PORT_CODE(KEYCODE_7) PORT_NAME("Hint / Black") PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_V) PORT_CODE(KEYCODE_6) PORT_NAME("Variable / Clear / White / 6") PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_M) PORT_CODE(KEYCODE_5) PORT_NAME("Monitor / Take Back / King / 5") PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_S) PORT_CODE(KEYCODE_4) PORT_NAME("Self Play / Verify / Queen / 4") PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_B) PORT_CODE(KEYCODE_3) PORT_NAME("Change Board / Rook / 3") PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_CODE(KEYCODE_2) PORT_NAME("Change Color / Bishop / 2") PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_L) PORT_CODE(KEYCODE_1) PORT_NAME("Change Level / Knight / 1") PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_CODE(KEYCODE_0) PORT_NAME("New Game / Options / Pawn / 0") PORT_START("IN.1") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_R) PORT_CODE(KEYCODE_F1) PORT_NAME("Reset") PORT_CHANGED_MEMBER(DEVICE_SELF, arb_state, reset_button, 0) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYPAD ) PORT_CODE(KEYCODE_T) PORT_CODE(KEYCODE_F1) PORT_NAME("Halt") PORT_CHANGED_MEMBER(DEVICE_SELF, arb_state, halt_button, 0) INPUT_PORTS_END /****************************************************************************** Machine Configs ******************************************************************************/ void arb_state::v2(machine_config &config) { /* basic machine hardware */ M65C02(config, m_maincpu, 16_MHz_XTAL); // W65C02S6TPG-14 m_maincpu->set_addrmap(AS_PROGRAM, &arb_state::v2_map); VIA6522(config, m_via, 16_MHz_XTAL); // W65C22S6TPG-14 m_via->writepa_handler().set(FUNC(arb_state::leds_w)); m_via->writepb_handler().set(FUNC(arb_state::control_w)); m_via->readpa_handler().set(FUNC(arb_state::input_r)); m_via->irq_handler().set_inputline(m_maincpu, M6502_IRQ_LINE); NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS); m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess)); m_board->set_delay(attotime::from_msec(100)); /* video hardware */ PWM_DISPLAY(config, m_display).set_size(9+1, 12); config.set_default_layout(layout_ave_arb); /* 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); } void arb_state::arb(machine_config &config) { v2(config); /* basic machine hardware */ M6502(config.replace(), m_maincpu, 4_MHz_XTAL/2); // R6502P m_maincpu->set_addrmap(AS_PROGRAM, &arb_state::main_map); m_via->set_clock(4_MHz_XTAL/4); // R6522P /* cartridge */ GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "arb"); m_cart->set_device_load(FUNC(arb_state::cart_load)); m_cart->set_must_be_loaded(true); SOFTWARE_LIST(config, "cart_list").set_original("arb"); } /****************************************************************************** ROM Definitions ******************************************************************************/ ROM_START( arb ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASE00 ) // none here, it's in the module slot ROM_END ROM_START( arbv2 ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "sargon_4.0", 0x0000, 0x10000, CRC(c519c9e8) SHA1(d7597d50c0f4f9aa6d990c8d3b485e39cb44ff06) ) // AT27C512R ROM_END } // anonymous namespace /****************************************************************************** Drivers ******************************************************************************/ /* YEAR NAME PARENT CMP MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS */ CONS( 1980, arb, 0, 0, arb, arb, arb_state, empty_init, "AVE Micro Systems", "Auto Response Board", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) CONS( 2012, arbv2, arb, 0, v2, arb, arb_state, empty_init, "hack (Steve Braid)", "ARB V2 Sargon 4.0", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )