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Diffstat (limited to 'src/mame/drivers/chessmstdm.cpp')
-rw-r--r-- | src/mame/drivers/chessmstdm.cpp | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/src/mame/drivers/chessmstdm.cpp b/src/mame/drivers/chessmstdm.cpp new file mode 100644 index 00000000000..604945ae38a --- /dev/null +++ b/src/mame/drivers/chessmstdm.cpp @@ -0,0 +1,354 @@ +// license:BSD-3-Clause +// copyright-holders:Sandro Ronco, hap +/****************************************************************************** + +Chess-Master Diamond (G-5004-500), by VEB Mikroelektronik "Karl Marx" Erfurt + +The chess engine is a continuation of the older Chess-Master model. So it +plays quite weak when compared with other chess computers from 1987. + +PM10 and PM11 modules were included (not separate purchases). No other modules +were released. The player is supposed to hotswap them with the [CH M] option. + +Hardware notes: +- UA880 Z80 @ 4MHz +- 2*Z80 PIO +- 16KB ROM (2*U2364D), 3KB RAM (6*U224D) +- 4-digit 16seg display +- module slot for opening book/endgame +- chessboard with 64 hall sensors, 64+2 leds, beeper + +TODO: +- hotswapping module doesn't work since MAME forces a hard reset +- the 555 only connects to BSTB pin, why is the data_b_write workaround needed? + +******************************************************************************/ + +#include "emu.h" + +#include "bus/generic/slot.h" +#include "bus/generic/carts.h" +#include "cpu/z80/z80.h" +#include "machine/clock.h" +#include "machine/z80pio.h" +#include "machine/sensorboard.h" +#include "sound/beep.h" +#include "video/pwm.h" + +#include "softlist.h" +#include "speaker.h" + +// internal artwork +#include "chessmstdm.lh" + + +namespace { + +class chessmstdm_state : public driver_device +{ +public: + chessmstdm_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_pio(*this, "z80pio%u", 0), + m_board(*this, "board"), + m_led_pwm(*this, "led_pwm"), + m_digit_pwm(*this, "digit_pwm"), + m_beeper(*this, "beeper"), + m_inputs(*this, "IN.%u", 0), + m_digits(*this, "digit%u", 0U) + { } + + DECLARE_INPUT_CHANGED_MEMBER(monitor_button); + DECLARE_INPUT_CHANGED_MEMBER(view_button); + + void chessmstdm(machine_config &config); + +protected: + virtual void machine_start() override; + virtual void machine_reset() override; + +private: + required_device<z80_device> m_maincpu; + required_device_array<z80pio_device, 2> m_pio; + required_device<sensorboard_device> m_board; + required_device<pwm_display_device> m_led_pwm; + required_device<pwm_display_device> m_digit_pwm; + required_device<beep_device> m_beeper; + required_ioport_array<2> m_inputs; + output_finder<4> m_digits; + + void chessmstdm_mem(address_map &map); + void chessmstdm_io(address_map &map); + + void reset_w(u8 data = 0); + u8 reset_r(); + void digits_w(u8 data); + void pio1_port_a_w(u8 data); + void pio1_port_b_w(u8 data); + u8 pio2_port_a_r(); + void pio2_port_b_w(u8 data); + + void update_leds(); + void update_digits(); + + u16 m_matrix = 0; + u8 m_led_data = 0; + u8 m_direct_leds = 0; + u8 m_digit_matrix = 0; + int m_digit_dot = 0; + u16 m_digit_data = 0; +}; + +void chessmstdm_state::machine_start() +{ + m_digits.resolve(); + + // register for savestates + save_item(NAME(m_matrix)); + save_item(NAME(m_direct_leds)); + save_item(NAME(m_led_data)); + save_item(NAME(m_digit_matrix)); + save_item(NAME(m_digit_dot)); + save_item(NAME(m_digit_data)); +} + +void chessmstdm_state::machine_reset() +{ + // reset digit shift registers + m_digit_data = 0; + update_digits(); +} + + + +/****************************************************************************** + I/O +******************************************************************************/ + +void chessmstdm_state::reset_w(u8 data) +{ + // accessing 9cxx asserts a reset + m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); + machine_reset(); +} + +u8 chessmstdm_state::reset_r() +{ + if (!machine().side_effects_disabled()) + reset_w(); + + return 0xff; +} + +void chessmstdm_state::update_digits() +{ + u16 digit_data = bitswap<16>(m_digit_data, 3,5,12,10,14,1,2,13,8,6,11,15,7,9,4,0); + m_digit_pwm->matrix(m_digit_matrix, digit_data | (m_digit_dot << 16)); +} + +void chessmstdm_state::digits_w(u8 data) +{ + // d0-d3: shift digit segment data into 4015 shift registers + m_digit_data = (m_digit_data << 4) | (data & 0x0f); + + // d4-d7: digit select + m_digit_matrix = (data >> 4) & 0x0f; + update_digits(); +} + +void chessmstdm_state::update_leds() +{ + m_led_pwm->matrix((m_matrix & 0xff) | (m_direct_leds << 8), m_led_data); +} + +void chessmstdm_state::pio1_port_a_w(u8 data) +{ + // d0-d7: chessboard led data + m_led_data = ~data; + update_leds(); +} + +void chessmstdm_state::pio1_port_b_w(u8 data) +{ + // d2: input mux highest bit + m_matrix = (m_matrix & 0xff) | ((data & 0x04) << 6); + + // d3: enable beeper + m_beeper->set_state(BIT(data, 3)); + + // d4: digits DP + m_digit_dot = BIT(data, 4); + update_digits(); + + // d5: monitor led, d6: playmode led + m_direct_leds = data >> 5 & 3; + update_leds(); + + // d4 and d7 also go to cartslot, but unused +} + +u8 chessmstdm_state::pio2_port_a_r() +{ + u8 data = 0; + + // read chessboard sensors + for (int i = 0; i < 8; i++) + if (BIT(m_matrix, i)) + data |= m_board->read_file(i); + + // read other buttons + if (m_matrix & 0x100) + data |= m_inputs[0]->read(); + + return ~data; +} + +void chessmstdm_state::pio2_port_b_w(u8 data) +{ + // d0-d7: input mux/led select + m_matrix = (data & 0xff) | (m_matrix & ~0xff); + update_leds(); +} + + + +/****************************************************************************** + Address Maps +******************************************************************************/ + +void chessmstdm_state::chessmstdm_mem(address_map &map) +{ + map.unmap_value_high(); + map(0x0000, 0x3fff).rom(); + map(0x4000, 0x7fff).r("cartslot", FUNC(generic_slot_device::read_rom)); + map(0x8000, 0x8bff).ram(); + map(0x9c00, 0x9c00).mirror(0x0300).rw(FUNC(chessmstdm_state::reset_r), FUNC(chessmstdm_state::reset_w)); +} + +void chessmstdm_state::chessmstdm_io(address_map &map) +{ + map.unmap_value_high(); + map.global_mask(0x7f); + //map(0x00, 0x03).mirror(0x70) read/write to both PIOs, but not used by software + map(0x04, 0x07).mirror(0x70).rw(m_pio[0], FUNC(z80pio_device::read), FUNC(z80pio_device::write)); + map(0x08, 0x0b).mirror(0x70).rw(m_pio[1], FUNC(z80pio_device::read), FUNC(z80pio_device::write)); + map(0x4c, 0x4c).mirror(0x33).w(FUNC(chessmstdm_state::digits_w)); +} + + + +/****************************************************************************** + Input Ports +******************************************************************************/ + +INPUT_CHANGED_MEMBER(chessmstdm_state::monitor_button) +{ + // releasing monitor button clears reset + if (!newval && oldval) + m_maincpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE); + + view_button(field, param, oldval, newval); +} + +INPUT_CHANGED_MEMBER(chessmstdm_state::view_button) +{ + // pressing both monitor+view buttons buttons causes a reset + if ((m_inputs[1]->read() & 0x03) == 0x03) + reset_w(); +} + +static INPUT_PORTS_START( chessmstdm ) + PORT_START("IN.0") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Move Fore") PORT_CODE(KEYCODE_RIGHT) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Move Back") PORT_CODE(KEYCODE_LEFT) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Board") PORT_CODE(KEYCODE_B) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Match / Time") PORT_CODE(KEYCODE_M) + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Parameter / Information") PORT_CODE(KEYCODE_I) + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Selection / Dialogue") PORT_CODE(KEYCODE_S) + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Function / Notation") PORT_CODE(KEYCODE_F) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) + + PORT_START("IN.1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Monitor") PORT_CODE(KEYCODE_F1) PORT_CHANGED_MEMBER(DEVICE_SELF, chessmstdm_state, monitor_button, 0) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("View") PORT_CODE(KEYCODE_F2) PORT_CHANGED_MEMBER(DEVICE_SELF, chessmstdm_state, view_button, 0) +INPUT_PORTS_END + + + +/****************************************************************************** + Machine Configs +******************************************************************************/ + +static const z80_daisy_config chessmstdm_daisy_chain[] = +{ + { "z80pio1" }, + { nullptr } +}; + +void chessmstdm_state::chessmstdm(machine_config &config) +{ + // basic machine hardware + Z80(config, m_maincpu, 8_MHz_XTAL / 2); + m_maincpu->set_addrmap(AS_PROGRAM, &chessmstdm_state::chessmstdm_mem); + m_maincpu->set_addrmap(AS_IO, &chessmstdm_state::chessmstdm_io); + m_maincpu->set_daisy_config(chessmstdm_daisy_chain); + + auto &strobe(CLOCK(config, "strobe", 500)); // from 555 timer, 50% duty + strobe.signal_handler().set(m_pio[1], FUNC(z80pio_device::strobe_b)); + strobe.signal_handler().append([this](int) { m_pio[1]->data_b_write(m_matrix); }); + + Z80PIO(config, m_pio[0], 8_MHz_XTAL / 2); + m_pio[0]->out_pa_callback().set(FUNC(chessmstdm_state::pio1_port_a_w)); + m_pio[0]->out_pb_callback().set(FUNC(chessmstdm_state::pio1_port_b_w)); + m_pio[0]->in_pb_callback().set_ioport("IN.1"); + + Z80PIO(config, m_pio[1], 8_MHz_XTAL / 2); + m_pio[1]->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); + m_pio[1]->in_pa_callback().set(FUNC(chessmstdm_state::pio2_port_a_r)); + m_pio[1]->out_pb_callback().set(FUNC(chessmstdm_state::pio2_port_b_w)); + + SENSORBOARD(config, m_board); + 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(150)); + + // video hardware + PWM_DISPLAY(config, m_digit_pwm).set_size(4, 17); + m_digit_pwm->set_segmask(0xf, 0x1ffff); + m_digit_pwm->output_digit().set([this](offs_t offset, u64 data) { m_digits[offset] = data; }); + + PWM_DISPLAY(config, m_led_pwm).set_size(8+2, 8); + config.set_default_layout(layout_chessmstdm); + + // sound hardware + SPEAKER(config, "speaker").front_center(); + BEEP(config, m_beeper, 1000).add_route(ALL_OUTPUTS, "speaker", 0.25); + + // cartridge + GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "chessmstdm_cart"); + SOFTWARE_LIST(config, "cart_list").set_original("chessmstdm"); +} + + + +/****************************************************************************** + ROM Definitions +******************************************************************************/ + +ROM_START( chessmstdm ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD("002.d224", 0x0000, 0x2000, CRC(bed56fef) SHA1(dad0f8ddbd9b10013a5bdcc09ee6db39cfb26b78) ) // U2364D45 + ROM_LOAD("201.d225", 0x2000, 0x2000, CRC(c9dc7f29) SHA1(a3e1b66d0e15ffe83a9165d15c4a83013852c2fe) ) // " +ROM_END + +} // anonymous namespace + + + +/****************************************************************************** + Drivers +******************************************************************************/ + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS +CONS( 1987, chessmstdm, 0, 0, chessmstdm, chessmstdm, chessmstdm_state, empty_init, "VEB Mikroelektronik \"Karl Marx\" Erfurt", "Chess-Master Diamond", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) |