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532xl.cpp
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532xl.cpp
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// license:BSD-3-Clause
// copyright-holders:hap
// thanks-to:Mr. Lars
/*******************************************************************************
Yeno 532 XL
This is the only Yeno chesscomputer that has a common CPU with external EPROM,
others are based on a 1-chip MCU. The 532 XL chess engine is by Ulf Rathsman.
Hardware notes:
- R65C02P4 @ 4 MHz
- 32KB ROM (MBM27C256H-10)
- 8KB battery-backed RAM (HY6264LP-10)
- HD61603, 2 4*7seg LCD screens
- TTL, piezo, 8*8+7 LEDs, button sensors
The software searches for an opening book ROM in 0x4000-0x7fff, it looks like
it's compatible with Conchess L16 / Mephisto HG240. Though the hardware does
not have an edge connector or empty ROM socket for it.
*******************************************************************************/
#include "emu.h"
#include "cpu/m6502/r65c02.h"
#include "machine/nvram.h"
#include "machine/sensorboard.h"
#include "sound/dac.h"
#include "video/hd61603.h"
#include "video/pwm.h"
#include "speaker.h"
// internal artwork
#include "yeno_532xl.lh"
namespace {
class y532xl_state : public driver_device
{
public:
y532xl_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_lcd(*this, "lcd"),
m_display(*this, "display"),
m_board(*this, "board"),
m_dac(*this, "dac"),
m_inputs(*this, "IN.%u", 0),
m_out_digit(*this, "digit%u", 0U),
m_out_lcd(*this, "lcd%u", 0U)
{ }
// machine configs
void y532xl(machine_config &config);
protected:
virtual void machine_start() override;
private:
// devices/pointers
required_device<cpu_device> m_maincpu;
required_device<hd61603_device> m_lcd;
required_device<pwm_display_device> m_display;
required_device<sensorboard_device> m_board;
required_device<dac_2bit_ones_complement_device> m_dac;
required_ioport_array<3> m_inputs;
output_finder<8> m_out_digit;
output_finder<64> m_out_lcd;
u8 m_led_data = 0;
u8 m_cb_mux = 0xff;
u8 m_control = 0xff;
// address maps
void main_map(address_map &map);
// I/O handlers
void update_display();
void lcd_seg_w(u64 data);
u8 input_r();
void cb_w(u8 data);
void led_w(u8 data);
void control_w(offs_t offset, u8 data);
};
void y532xl_state::machine_start()
{
m_out_digit.resolve();
m_out_lcd.resolve();
// register for savestates
save_item(NAME(m_led_data));
save_item(NAME(m_cb_mux));
save_item(NAME(m_control));
}
/*******************************************************************************
I/O
*******************************************************************************/
void y532xl_state::update_display()
{
m_display->matrix(~(m_control << 8 | m_cb_mux), m_led_data);
}
void y532xl_state::lcd_seg_w(u64 data)
{
// output individual segments
for (int i = 0; i < 64; i++)
m_out_lcd[i] = BIT(data, i);
// output digits
for (int i = 0; i < 8; i++)
{
u8 digit_data = bitswap<8>(data,7,3,2,4,5,6,0,1);
m_out_digit[i] = (i & 3) ? digit_data : digit_data & 0x7f; // no DP for last digit
data >>= 8;
}
}
u8 y532xl_state::input_r()
{
u8 data = 0;
// read side panel buttons
for (int i = 0; i < 3; i++)
if (BIT(~m_control, i))
data |= m_inputs[i]->read();
// read chessboard sensors
for (int i = 0; i < 8; i++)
if (BIT(~m_cb_mux, i))
data |= m_board->read_file(i);
return data;
}
void y532xl_state::cb_w(u8 data)
{
// d0-d3: lcd data (see control_w)
// d0-d7: chessboard input mux
m_cb_mux = data;
update_display();
}
void y532xl_state::led_w(u8 data)
{
// d0-d7: led data
m_led_data = data;
update_display();
}
void y532xl_state::control_w(offs_t offset, u8 data)
{
u8 prev = m_control;
// a0-a2,d0: 74259
u8 mask = 1 << offset;
m_control = (m_control & ~mask) | ((data & 1) ? mask : 0);
// Q0-Q2: button input mux
// Q0: select side leds
update_display();
// Q3,Q4: speaker out
m_dac->write(m_control >> 3 & 3);
// Q7 rising edge: write to lcd
if (~prev & m_control & 0x80)
m_lcd->data_w(m_cb_mux & 0xf);
}
/*******************************************************************************
Address Maps
*******************************************************************************/
void y532xl_state::main_map(address_map &map)
{
map(0x0000, 0x1fff).ram().share("nvram");
map(0x2000, 0x2000).w(FUNC(y532xl_state::cb_w));
map(0x2080, 0x2080).w(FUNC(y532xl_state::led_w));
map(0x2100, 0x2100).r(FUNC(y532xl_state::input_r));
map(0x2180, 0x2187).w(FUNC(y532xl_state::control_w));
map(0x8000, 0xffff).rom();
}
/*******************************************************************************
Input Ports
*******************************************************************************/
static INPUT_PORTS_START( y532xl )
PORT_START("IN.0")
PORT_BIT(0x3f, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_O) PORT_NAME("Option")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_M) PORT_NAME("Show Move")
PORT_START("IN.1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_P) PORT_NAME("Play")
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_N) PORT_NAME("New Game / Clear Board")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_S) PORT_NAME("Set Up")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_U) PORT_NAME("Multi Move")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_X) PORT_NAME("Teach")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_T) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("9 / Take Back")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_R) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD) PORT_NAME("0 / Forward")
PORT_START("IN.2")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_A) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("A / 1 / Pawn")
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_B) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("B / 2 / Knight")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("C / 3 / Bishop")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_D) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("D / 4 / Rook")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_E) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("E / 5 / Queen")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_F) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("F / 6 / King")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_G) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("G / 7 / Black")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_H) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("H / 8 / White")
INPUT_PORTS_END
/*******************************************************************************
Machine Configs
*******************************************************************************/
void y532xl_state::y532xl(machine_config &config)
{
// basic machine hardware
R65C02(config, m_maincpu, 4_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &y532xl_state::main_map);
const attotime nmi_period = attotime::from_hz(4_MHz_XTAL / 0x2000);
m_maincpu->set_periodic_int(FUNC(y532xl_state::nmi_line_pulse), nmi_period);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
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
HD61603(config, m_lcd, 0);
m_lcd->write_segs().set(FUNC(y532xl_state::lcd_seg_w));
PWM_DISPLAY(config, m_display).set_size(9, 8);
config.set_default_layout(layout_yeno_532xl);
// sound hardware
SPEAKER(config, "speaker").front_center();
DAC_2BIT_ONES_COMPLEMENT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.125);
}
/*******************************************************************************
ROM Definitions
*******************************************************************************/
ROM_START( y532xl )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD("532xl_00674.u9", 0x8000, 0x8000, CRC(8ded1df6) SHA1(6bcbebb8e1fde472e1ccd0036cb3f00b27f72d89) )
ROM_END
} // anonymous namespace
/*******************************************************************************
Drivers
*******************************************************************************/
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS
SYST( 1989, y532xl, 0, 0, y532xl, y532xl, y532xl_state, empty_init, "Yeno", "532 XL (Yeno)", MACHINE_SUPPORTS_SAVE )