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Diffstat (limited to 'src/mame/drivers/fidel_sc12.cpp')
-rw-r--r--src/mame/drivers/fidel_sc12.cpp306
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diff --git a/src/mame/drivers/fidel_sc12.cpp b/src/mame/drivers/fidel_sc12.cpp
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-// license:BSD-3-Clause
-// copyright-holders:hap
-// thanks-to:Berger, yoyo_chessboard
-/******************************************************************************
-
-Fidelity Sensory 12 Chess Challenger (SC12-B, 6086)
-4 versions are known to exist: A,B,C, and X, with increasing CPU speed.
----------------------------------
-RE information from netlist by Berger
-
-8*(8+1) buttons, 8+8+2 red LEDs
-DIN 41524C printer port
-36-pin edge connector
-CPU is a R65C02P4, running at 4MHz*
-
-*By default, the CPU frequency is lowered on A13/A14 access, with a factory-set jumper:
-/2 on model SC12(1.5MHz), /4 on model 6086(1MHz)
-
-NE556 dual-timer IC:
-- timer#1, one-shot at power-on, to CPU _RESET
-- timer#2: R1=82K+50K pot at 26K, R2=1K, C=22nF, to CPU _IRQ: ~596Hz, active low=15.25us
-
-Memory map:
------------
-0000-0FFF: 4K RAM (2016 * 2)
-2000-5FFF: cartridge
-6000-7FFF: control(W)
-8000-9FFF: 8K ROM SSS SCM23C65E4
-A000-BFFF: keypad(R)
-C000-DFFF: 4K ROM TI TMS2732AJL-45
-E000-FFFF: 8K ROM Toshiba TMM2764D-2
-
-control: (74LS377)
---------
-Q0-Q3: 7442 A0-A3
-Q4: enable printer port pin 1 input
-Q5: printer port pin 5 output
-Q6,Q7: LEDs common anode
-
-7442 0-8: input mux and LEDs cathode
-7442 9: buzzer
-
-The keypad is read through a 74HC251, where S0,1,2 is from CPU A0,1,2, Y is connected to CPU D7.
-If control Q4 is set, printer data can be read from I0.
-
-******************************************************************************/
-
-#include "emu.h"
-#include "machine/fidel_clockdiv.h"
-
-#include "cpu/m6502/r65c02.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_sc12.lh" // clickable
-
-
-namespace {
-
-// note: sub-class of fidel_clockdiv_state (see mame/machine/fidel_clockdiv.*)
-
-class sc12_state : public fidel_clockdiv_state
-{
-public:
- sc12_state(const machine_config &mconfig, device_type type, const char *tag) :
- fidel_clockdiv_state(mconfig, type, tag),
- 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 configs
- void sc12(machine_config &config);
- void sc12b(machine_config &config);
-
-protected:
- virtual void machine_start() override;
-
-private:
- // devices/pointers
- required_device<timer_device> m_irq_on;
- required_device<sensorboard_device> m_board;
- required_device<pwm_display_device> m_display;
- required_device<dac_bit_interface> m_dac;
- required_device<generic_slot_device> m_cart;
- required_ioport m_inputs;
-
- // address maps
- void main_map(address_map &map);
-
- // periodic interrupts
- template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_on) { m_maincpu->set_input_line(Line, ASSERT_LINE); }
- template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_off) { m_maincpu->set_input_line(Line, CLEAR_LINE); }
-
- DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load);
-
- // I/O handlers
- DECLARE_WRITE8_MEMBER(control_w);
- DECLARE_READ8_MEMBER(input_r);
-
- u8 m_inp_mux;
-};
-
-void sc12_state::machine_start()
-{
- fidel_clockdiv_state::machine_start();
-
- // zerofill/register for savestates
- m_inp_mux = 0;
- save_item(NAME(m_inp_mux));
-}
-
-
-
-/******************************************************************************
- I/O
-******************************************************************************/
-
-// cartridge
-
-DEVICE_IMAGE_LOAD_MEMBER(sc12_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
-
-WRITE8_MEMBER(sc12_state::control_w)
-{
- // d0-d3: 7442 a0-a3
- // 7442 0-8: led data, input mux
- m_inp_mux = data & 0xf;
- u16 sel = 1 << m_inp_mux & 0x3ff;
-
- // 7442 9: speaker out
- m_dac->write(BIT(sel, 9));
-
- // d6,d7: led select (active low)
- m_display->matrix(~data >> 6 & 3, sel & 0x1ff);
-
- // d4,d5: printer
- //..
-}
-
-READ8_MEMBER(sc12_state::input_r)
-{
- u8 data = 0;
-
- // a0-a2,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 >> offset & 1) ? 0 : 0x80;
-}
-
-
-
-/******************************************************************************
- Address Maps
-******************************************************************************/
-
-void sc12_state::main_map(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x0fff).ram();
- map(0x2000, 0x5fff).r("cartslot", FUNC(generic_slot_device::read_rom));
- map(0x6000, 0x6000).mirror(0x1fff).w(FUNC(sc12_state::control_w));
- map(0x8000, 0x9fff).rom();
- map(0xa000, 0xa007).mirror(0x1ff8).r(FUNC(sc12_state::input_r));
- map(0xc000, 0xcfff).mirror(0x1000).rom();
- map(0xe000, 0xffff).rom();
-}
-
-
-
-/******************************************************************************
- Input Ports
-******************************************************************************/
-
-static INPUT_PORTS_START( sc12_sidepanel )
- 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( sc12 )
- PORT_INCLUDE( fidel_clockdiv_2 )
- PORT_INCLUDE( sc12_sidepanel )
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( sc12b )
- PORT_INCLUDE( fidel_clockdiv_4 )
- PORT_INCLUDE( sc12_sidepanel )
-INPUT_PORTS_END
-
-
-
-/******************************************************************************
- Machine Configs
-******************************************************************************/
-
-void sc12_state::sc12(machine_config &config)
-{
- /* basic machine hardware */
- R65C02(config, m_maincpu, 3_MHz_XTAL); // R65C02P3
- m_maincpu->set_addrmap(AS_PROGRAM, &sc12_state::div_trampoline);
- ADDRESS_MAP_BANK(config, m_mainmap).set_map(&sc12_state::main_map).set_options(ENDIANNESS_LITTLE, 8, 16);
-
- const attotime irq_period = attotime::from_hz(630); // from 556 timer (22nF, 102K, 1K)
- TIMER(config, m_irq_on).configure_periodic(FUNC(sc12_state::irq_on<M6502_IRQ_LINE>), irq_period);
- m_irq_on->set_start_delay(irq_period - attotime::from_nsec(15250)); // active for 15.25us
- TIMER(config, "irq_off").configure_periodic(FUNC(sc12_state::irq_off<M6502_IRQ_LINE>), 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(2, 9);
- config.set_default_layout(layout_fidel_sc12);
-
- /* 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(sc12_state::cart_load));
-
- SOFTWARE_LIST(config, "cart_list").set_original("fidel_scc");
-}
-
-void sc12_state::sc12b(machine_config &config)
-{
- sc12(config);
-
- /* basic machine hardware */
- m_maincpu->set_clock(4_MHz_XTAL); // R65C02P4
-
- // change irq timer frequency
- const attotime irq_period = attotime::from_hz(596); // from 556 timer (22nF, 82K+26K, 1K)
- TIMER(config.replace(), m_irq_on).configure_periodic(FUNC(sc12_state::irq_on<M6502_IRQ_LINE>), irq_period);
- m_irq_on->set_start_delay(irq_period - attotime::from_nsec(15250)); // active for 15.25us
- TIMER(config.replace(), "irq_off").configure_periodic(FUNC(sc12_state::irq_off<M6502_IRQ_LINE>), irq_period);
-}
-
-
-
-/******************************************************************************
- ROM Definitions
-******************************************************************************/
-
-ROM_START( fscc12 ) // model SC12, PCB label 510-1084B01
- ROM_REGION( 0x10000, "mainmap", 0 )
- ROM_LOAD("101-1068a01.ic15", 0x8000, 0x2000, CRC(63c76cdd) SHA1(e0771c98d4483a6b1620791cb99a7e46b0db95c4) ) // SSS SCM23C65E4
- ROM_LOAD("orange.ic13", 0xc000, 0x1000, CRC(ed5289b2) SHA1(9b0c7f9ae4102d4a66eb8c91d4e84b9eec2ffb3d) ) // TI TMS2732AJL-45, no label, orange sticker
- ROM_LOAD("red.ic14", 0xe000, 0x2000, CRC(0c4968c4) SHA1(965a66870b0f8ce9549418cbda09d2ff262a1504) ) // TI TMS2764JL-25, no label, red sticker
-ROM_END
-
-ROM_START( fscc12b ) // model 6086, PCB label 510-1084B01
- ROM_REGION( 0x10000, "mainmap", 0 )
- ROM_LOAD("101-1068a01.ic15", 0x8000, 0x2000, CRC(63c76cdd) SHA1(e0771c98d4483a6b1620791cb99a7e46b0db95c4) ) // SSS SCM23C65E4
- ROM_LOAD("orange.ic13", 0xc000, 0x1000, CRC(45070a71) SHA1(8aeecff828f26fb7081902c757559903be272649) ) // TI TMS2732AJL-45, no label, orange sticker
- ROM_LOAD("red.ic14", 0xe000, 0x2000, CRC(183d3edc) SHA1(3296a4c3bce5209587d4a1694fce153558544e63) ) // Toshiba TMM2764D-2, no label, red sticker
-ROM_END
-
-} // anonymous namespace
-
-
-
-/******************************************************************************
- Drivers
-******************************************************************************/
-
-// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS
-CONS( 1984, fscc12, 0, 0, sc12, sc12, sc12_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger 12", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_TIMING )
-CONS( 1984, fscc12b, fscc12, 0, sc12b, sc12b, sc12_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger 12-B", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_TIMING )