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// license:BSD-3-Clause
// copyright-holders:hap
// thanks-to:Berger
/*******************************************************************************
Yeno 416 XL
The chess engine is by Frans Morsch, similar to Mephisto Europa.
NOTE: Turn the power off (SAVE) before exiting MAME, otherwise NVRAM won't save
properly.
Hardware notes:
- PCB label: CHESS3 YENO 416XL
- Hitachi HD6301Y0P @ ~8MHz (LC oscillator)
- 8*8 chessboard buttons, 16+7 LEDs, piezo
TODO:
- if/when MAME supports an exit callback, hook up power-off switch to that
*******************************************************************************/
#include "emu.h"
#include "cpu/m6800/m6801.h"
#include "machine/sensorboard.h"
#include "sound/dac.h"
#include "video/pwm.h"
#include "speaker.h"
// internal artwork
#include "yeno_416xl.lh"
namespace {
class y416xl_state : public driver_device
{
public:
y416xl_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_board(*this, "board"),
m_display(*this, "display"),
m_dac(*this, "dac"),
m_inputs(*this, "IN.%u", 0)
{ }
void y416xl(machine_config &config);
DECLARE_INPUT_CHANGED_MEMBER(power_off) { if (newval) m_power = false; }
protected:
virtual void machine_start() override ATTR_COLD;
virtual void machine_reset() override { m_power = true; }
private:
// devices/pointers
required_device<hd6301y0_cpu_device> m_maincpu;
required_device<sensorboard_device> m_board;
required_device<pwm_display_device> m_display;
required_device<dac_1bit_device> m_dac;
required_ioport_array<2> m_inputs;
bool m_power = false;
u16 m_inp_mux = 0;
// I/O handlers
template <int N> void leds_w(u8 data);
u8 p2_r();
void p2_w(u8 data);
u8 p5_r();
void p6_w(u8 data);
};
void y416xl_state::machine_start()
{
// register for savestates
save_item(NAME(m_power));
save_item(NAME(m_inp_mux));
}
/*******************************************************************************
I/O
*******************************************************************************/
template <int N>
void y416xl_state::leds_w(u8 data)
{
// P10-P17, P30-P37, P40-P47: leds (direct)
m_display->write_row(N, ~data);
}
u8 y416xl_state::p2_r()
{
// P22: power switch
return m_power ? 0xff : 0xfb;
}
void y416xl_state::p2_w(u8 data)
{
// P20,P21: input mux (buttons)
m_inp_mux = (m_inp_mux & 0xff) | (~data << 8 & 0x300);
// P23: speaker out
m_dac->write(BIT(data, 3));
}
u8 y416xl_state::p5_r()
{
// P50-P57: multiplexed inputs
u8 data = 0;
// read buttons
for (int i = 0; i < 3; i++)
if (BIT(m_inp_mux, i + 8))
data |= m_inputs[i]->read();
// read chessboard
for (int i = 0; i < 8; i++)
if (BIT(m_inp_mux, i))
data |= m_board->read_file(i);
return ~data;
}
void y416xl_state::p6_w(u8 data)
{
// P60-P67: input mux (chessboard)
m_inp_mux = (m_inp_mux & 0x300) | (data ^ 0xff);
}
/*******************************************************************************
Input Ports
*******************************************************************************/
static INPUT_PORTS_START( y416xl )
PORT_START("IN.0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("Pawn")
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("Knight")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Bishop")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Rook")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("Queen")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("King")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_P) PORT_NAME("Play")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_T) PORT_NAME("Take Back")
PORT_START("IN.1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_NAME("New Game")
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_L) PORT_NAME("Level")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_S) PORT_NAME("Set Up")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_U) PORT_NAME("Multimove")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_NAME("Change Color")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_O) PORT_NAME("Sound / Change Direction")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_NAME("Learning")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_M) PORT_NAME("Show Move")
PORT_START("POWER") // needs to be triggered for nvram to work
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_POWER_OFF) PORT_CHANGED_MEMBER(DEVICE_SELF, FUNC(y416xl_state::power_off), 0)
INPUT_PORTS_END
/*******************************************************************************
Machine Configs
*******************************************************************************/
void y416xl_state::y416xl(machine_config &config)
{
// basic machine hardware
HD6301Y0(config, m_maincpu, 8'000'000); // approximation, no XTAL
m_maincpu->nvram_enable_backup(true);
m_maincpu->standby_cb().set(m_maincpu, FUNC(hd6301y0_cpu_device::nvram_set_battery));
m_maincpu->standby_cb().append([this](int state) { if (state) m_display->clear(); });
m_maincpu->out_p1_cb().set(FUNC(y416xl_state::leds_w<0>));
m_maincpu->in_p2_cb().set(FUNC(y416xl_state::p2_r));
m_maincpu->out_p2_cb().set(FUNC(y416xl_state::p2_w));
m_maincpu->out_p3_cb().set(FUNC(y416xl_state::leds_w<1>));
m_maincpu->out_p4_cb().set(FUNC(y416xl_state::leds_w<2>));
m_maincpu->in_p5_cb().set(FUNC(y416xl_state::p5_r));
m_maincpu->out_p6_cb().set(FUNC(y416xl_state::p6_w));
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));
m_board->set_nvram_enable(true);
// video hardware
PWM_DISPLAY(config, m_display).set_size(3, 8);
config.set_default_layout(layout_yeno_416xl);
// sound hardware
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25);
}
/*******************************************************************************
ROM Definitions
*******************************************************************************/
ROM_START( y416xl )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD("yeno_ic-890529_hd6301y0k79p.u1", 0x0000, 0x4000, CRC(85b4368d) SHA1(9dc12a6538141efe1ebcf8162ac7348ddc2b33ae) )
ROM_END
} // anonymous namespace
/*******************************************************************************
Drivers
*******************************************************************************/
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS
SYST( 1989, y416xl, 0, 0, y416xl, y416xl, y416xl_state, empty_init, "Yeno", "416 XL (Yeno)", MACHINE_SUPPORTS_SAVE )
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