// license:BSD-3-Clause
// copyright-holders:hap
// thanks-to:yoyo_chessboard, Berger
/******************************************************************************
Fidelity Sensory Chess Challenger 6 (model SC6)
Fidelity Mini Sensory Chess Challenger (model MSC, 1982 version)
Fidelity The Gambit (model 6084)
TODO:
- MSC MCU is currently emulated as I8039, due to missing EA pin emulation
- different button panel for fidel_msc_v2 artwork
- add the older versions of gambit(assuming different ROM): 1st version is
probably the same as "The Classic", and 2nd version has voice capability
-------------------------------------------------------------------------------
SC6 hardware notes:
- PCB label 510-1045B01
- INS8040N-11 MCU, 11MHz XTAL
- external 4KB ROM 2332 101-1035A01, in module slot
- buzzer, 2 7seg LEDs, 8*8 chessboard buttons
SC6 released modules, * denotes not dumped yet:
- *BO6: Book Openings I
- *CG6: Greatest Chess Games 1
- SC6: pack-in, original program
SC6 program is contained in BO6 and CG6.
-------------------------------------------------------------------------------
MSC hardware notes:
- PCB label 510-1044B01
- P8049H MCU, 2KB internal ROM, 11MHz XTAL
- buzzer, 18 leds, 8*8 chessboard buttons, module slot
MCU ports I/O is identical to SC6.
It accepts the same modules as the 1st MSC version. See fidel_msc.cpp for known
modules. The module overrides the internal ROM, by asserting the EA pin.
-------------------------------------------------------------------------------
Gambit(v3) hardware notes:
- PCB label 510-1115A01 (1986 PCB, but chips from 1989)
- TMP80C50AP-6-9311 MCU, 4KB internal ROM, 6MHz XTAL
- buzzer, 16 leds, 8*8 chessboard buttons
MCU ports I/O again identical to SC6.
The same MCU+ROM was also used in Designer 1500(PCB label 510.1131A01).
Gambit Voice hardware notes:
- TMP80C50AP-6-9311 MCU, 4KB internal ROM, 6MHz XTAL
- 510.1117A01 sound PCB, the one from Excel Voice, but with 2332 ROM
- speaker, 16 leds, 8*8 chessboard buttons
Silver Bullet hardware notes:
- PCB from MSC, but lose/check leds unpopulated
- TMP80C50AP-6-9311 MCU, 4KB internal ROM, 6MHz XTAL
- buzzer, 16 leds, 8*8 chessboard buttons, module slot
To summarize, known MCU chip ROM serials+year:
- 100-1020B01 (1989), The Gambit
- 100-1020B02 (1986), Silver Bullet
- 100-1020B02 (1987), The Classic
- 100-1020C01 (1987), Gambit Voice
******************************************************************************/
#include "emu.h"
#include "cpu/mcs48/mcs48.h"
#include "machine/sensorboard.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_gambit.lh" // clickable
#include "fidel_msc_v2.lh" // clickable
#include "fidel_sc6.lh" // clickable
namespace {
class sc6_state : public driver_device
{
public:
sc6_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_rom(*this, "maincpu"),
m_board(*this, "board"),
m_display(*this, "display"),
m_dac(*this, "dac"),
m_cart(*this, "cartslot"),
m_inputs(*this, "IN.0")
{ }
// machine configs
void msc(machine_config &config);
void sc6(machine_config &config);
void gambit(machine_config &config);
protected:
virtual void machine_start() override;
private:
// devices/pointers
required_device<mcs48_cpu_device> m_maincpu;
required_region_ptr<u8> m_rom;
required_device<sensorboard_device> m_board;
required_device<pwm_display_device> m_display;
required_device<dac_bit_interface> m_dac;
optional_device<generic_slot_device> m_cart;
required_ioport m_inputs;
// address maps
void msc_map(address_map &map);
void sc6_map(address_map &map);
// I/O handlers
void update_display();
void mux_w(u8 data);
void select_w(u8 data);
u8 rom_r(offs_t offset);
u8 read_inputs();
u8 input_r();
DECLARE_READ_LINE_MEMBER(input6_r);
DECLARE_READ_LINE_MEMBER(input7_r);
u8 m_led_select = 0;
u8 m_inp_mux = 0;
};
void sc6_state::machine_start()
{
// register for savestates
save_item(NAME(m_led_select));
save_item(NAME(m_inp_mux));
}
/******************************************************************************
I/O
******************************************************************************/
// MCU ports/generic
void sc6_state::update_display()
{
// MSC: 18 leds, SC6: 2 7seg leds
m_display->matrix(m_led_select, 1 << m_inp_mux);
}
void sc6_state::mux_w(u8 data)
{
// P24-P27: 7442 A-D (or 74145)
// 7442 0-8: input mux, led data
m_inp_mux = data >> 4 & 0xf;
update_display();
// 7442 9: speaker out
m_dac->write(BIT(1 << m_inp_mux, 9));
}
void sc6_state::select_w(u8 data)
{
// P16,P17: led select
m_led_select = ~data >> 6 & 3;
update_display();
}
u8 sc6_state::rom_r(offs_t offset)
{
// MSC reads from cartridge if it's inserted(A12 high), otherwise from internal ROM
return m_cart->exists() ? m_cart->read_rom(offset | 0x1000) : m_rom[offset];
}
u8 sc6_state::read_inputs()
{
u8 data = 0;
// 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;
}
u8 sc6_state::input_r()
{
// P10-P15: multiplexed inputs low
return (read_inputs() & 0x3f) | 0xc0;
}
READ_LINE_MEMBER(sc6_state::input6_r)
{
// T0: multiplexed inputs bit 6
return read_inputs() >> 6 & 1;
}
READ_LINE_MEMBER(sc6_state::input7_r)
{
// T1: multiplexed inputs bit 7
return read_inputs() >> 7 & 1;
}
/******************************************************************************
Address Maps
******************************************************************************/
void sc6_state::msc_map(address_map &map)
{
map(0x0000, 0x0fff).r(FUNC(sc6_state::rom_r));
}
void sc6_state::sc6_map(address_map &map)
{
map(0x0000, 0x0fff).r("cartslot", FUNC(generic_slot_device::read_rom));
}
/******************************************************************************
Input Ports
******************************************************************************/
static INPUT_PORTS_START( sc6 )
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_CODE(KEYCODE_BACKSPACE) 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( msc )
PORT_INCLUDE( sc6 )
PORT_MODIFY("IN.0")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Speaker / Bishop")
INPUT_PORTS_END
static INPUT_PORTS_START( gambit )
PORT_START("IN.0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("Move / Pawn")
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("Hint / Knight")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Take Back / Bishop")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Level / Rook")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("Verify / Queen")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("Problem / King")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Clear")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_NAME("New Game")
INPUT_PORTS_END
/******************************************************************************
Machine Configs
******************************************************************************/
void sc6_state::gambit(machine_config &config)
{
/* basic machine hardware */
I8050(config, m_maincpu, 6_MHz_XTAL);
m_maincpu->p2_out_cb().set(FUNC(sc6_state::mux_w));
m_maincpu->p1_in_cb().set(FUNC(sc6_state::input_r));
m_maincpu->p1_out_cb().set(FUNC(sc6_state::select_w));
m_maincpu->t0_in_cb().set(FUNC(sc6_state::input6_r));
m_maincpu->t1_in_cb().set(FUNC(sc6_state::input7_r));
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(150));
/* video hardware */
PWM_DISPLAY(config, m_display).set_size(2, 9);
config.set_default_layout(layout_fidel_gambit);
/* 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 sc6_state::msc(machine_config &config)
{
gambit(config);
/* basic machine hardware */
I8039(config.replace(), m_maincpu, 11_MHz_XTAL); // actually I8049
m_maincpu->set_addrmap(AS_PROGRAM, &sc6_state::msc_map);
m_maincpu->p2_out_cb().set(FUNC(sc6_state::mux_w));
m_maincpu->p1_in_cb().set(FUNC(sc6_state::input_r));
m_maincpu->p1_out_cb().set(FUNC(sc6_state::select_w));
m_maincpu->t0_in_cb().set(FUNC(sc6_state::input6_r));
m_maincpu->t1_in_cb().set(FUNC(sc6_state::input7_r));
config.set_default_layout(layout_fidel_msc_v2);
/* cartridge */
GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "fidel_msc");
SOFTWARE_LIST(config, "cart_list").set_original("fidel_msc");
}
void sc6_state::sc6(machine_config &config)
{
gambit(config);
/* basic machine hardware */
I8040(config.replace(), m_maincpu, 11_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &sc6_state::sc6_map);
m_maincpu->p2_out_cb().set(FUNC(sc6_state::mux_w));
m_maincpu->p1_in_cb().set(FUNC(sc6_state::input_r));
m_maincpu->p1_out_cb().set(FUNC(sc6_state::select_w));
m_maincpu->t0_in_cb().set(FUNC(sc6_state::input6_r));
m_maincpu->t1_in_cb().set(FUNC(sc6_state::input7_r));
/* video hardware */
m_display->set_segmask(0x3, 0x7f);
config.set_default_layout(layout_fidel_sc6);
/* cartridge */
GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "fidel_sc6").set_must_be_loaded(true);
SOFTWARE_LIST(config, "cart_list").set_original("fidel_sc6");
}
/******************************************************************************
ROM Definitions
******************************************************************************/
ROM_START( fscc6 )
ROM_REGION( 0x1000, "maincpu", ROMREGION_ERASE00 )
// none here, it's in the module slot
ROM_END
ROM_START( miniscc )
ROM_REGION( 0x1000, "maincpu", 0 )
ROM_LOAD("100-1012b01", 0x0000, 0x0800, CRC(ea3261f7) SHA1(1601358fdf0eee0b973c0f4c78bf679b8dada72a) ) // internal ROM
ROM_RELOAD( 0x0800, 0x0800)
ROM_END
ROM_START( gambit )
ROM_REGION( 0x1000, "maincpu", 0 )
ROM_LOAD("100-1020b01", 0x0000, 0x1000, CRC(ba41b5ba) SHA1(1a5c5b2e990a07b9ff51eecfa952a4b890107797) ) // internal ROM
ROM_END
} // anonymous namespace
/******************************************************************************
Drivers
******************************************************************************/
// YEAR NAME PARENT CMP MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS
CONS( 1982, fscc6, 0, 0, sc6, sc6, sc6_state, empty_init, "Fidelity Electronics", "Sensory Chess Challenger \"6\"", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
CONS( 1982, miniscc, 0, 0, msc, msc, sc6_state, empty_init, "Fidelity Electronics", "Mini Sensory Chess Challenger (1982 version)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) // aka "Mini Sensory II"
CONS( 1989, gambit, 0, 0, gambit, gambit, sc6_state, empty_init, "Fidelity Electronics", "The Gambit (1989 version)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )