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// license:BSD-3-Clause
// copyright-holders:hap
// thanks-to:Berger
/******************************************************************************
SciSys Chess Companion
The 1st one (this) has a 6504, the 'sequels' II and III have a 6301.
Not to be confused with Kasparov Chess Companion.
Hardware notes:
- PCB label: SciSys Y01 A
- Synertek 6504 @ ~1MHz
- Synertek SY6520/SY6820 PIA
- 4KB ROM (2332N, chip manufacturer unknown)
- 1KB RAM (2*HM472114P-4)
- beeper, button sensors chessboard, 16+12 leds
******************************************************************************/
#include "emu.h"
#include "cpu/m6502/m6504.h"
#include "machine/6821pia.h"
#include "machine/sensorboard.h"
#include "sound/dac.h"
#include "video/pwm.h"
#include "speaker.h"
// internal artwork
#include "saitek_ccompan.lh" // clickable
namespace {
class ccompan_state : public driver_device
{
public:
ccompan_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_pia(*this, "pia"),
m_board(*this, "board"),
m_display(*this, "display"),
m_dac(*this, "dac"),
m_inputs(*this, "IN.%u", 0)
{ }
void ccompan(machine_config &config);
protected:
virtual void machine_start() override;
private:
// devices/pointers
required_device<cpu_device> m_maincpu;
required_device<pia6821_device> m_pia;
required_device<sensorboard_device> m_board;
required_device<pwm_display_device> m_display;
required_device<dac_bit_interface> m_dac;
required_ioport_array<2> m_inputs;
// address maps
void main_map(address_map &map);
// I/O handlers
void update_display();
void control_w(u8 data);
u8 input_r();
void sled_w(int state);
void cled_w(int state);
u8 m_inp_mux = 0;
u8 m_led_data = 0;
u8 m_led_direct = 0;
};
void ccompan_state::machine_start()
{
// register for savestates
save_item(NAME(m_inp_mux));
save_item(NAME(m_led_data));
save_item(NAME(m_led_direct));
}
/******************************************************************************
I/O
******************************************************************************/
void ccompan_state::update_display()
{
m_display->matrix((1 << m_inp_mux & 0x3ff) | (m_led_direct << 10), m_led_data);
}
void ccompan_state::sled_w(int state)
{
// CA2: "sides swapped" led
m_led_direct = (m_led_direct & ~2) | (state ? 2 : 0);
update_display();
}
void ccompan_state::cled_w(int state)
{
// CB2: "color" led
m_led_direct = (m_led_direct & ~1) | (state ? 1 : 0);
update_display();
}
void ccompan_state::control_w(u8 data)
{
// PB0-PB3: input mux, led select
m_inp_mux = data & 0xf;
// PB4-PB6: led data
m_led_data = ~data >> 4 & 7;
update_display();
// PB7: speaker out
m_dac->write(BIT(data, 7));
}
u8 ccompan_state::input_r()
{
u8 data = 0;
// PA0-PA7: multiplexed inputs
// read chessboard sensors
if (m_inp_mux < 8)
data = m_board->read_file(m_inp_mux);
// read other buttons
else if (m_inp_mux < 10)
data = m_inputs[m_inp_mux - 8]->read();
return ~data;
}
/******************************************************************************
Address Maps
******************************************************************************/
void ccompan_state::main_map(address_map &map)
{
map.global_mask(0x1fff);
map(0x0000, 0x03ff).ram();
map(0x0800, 0x0803).rw(m_pia, FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0x1000, 0x1fff).rom();
}
/******************************************************************************
Input Ports
******************************************************************************/
static INPUT_PORTS_START( ccompan )
PORT_START("IN.0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("Pawn")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("Knight")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Bishop")
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_S) PORT_NAME("Swap Sides")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_NAME("Color")
PORT_START("IN.1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_NAME("New Game")
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Rook")
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_O) PORT_NAME("Play")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_B) PORT_NAME("Clear Board")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_T) PORT_NAME("Take Back")
PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_M) PORT_NAME("Multi Move")
PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_L) PORT_NAME("Change Level")
INPUT_PORTS_END
/******************************************************************************
Machine Configs
******************************************************************************/
void ccompan_state::ccompan(machine_config &config)
{
/* basic machine hardware */
M6504(config, m_maincpu, 1000000); // approximation, no XTAL
m_maincpu->set_addrmap(AS_PROGRAM, &ccompan_state::main_map);
PIA6821(config, m_pia, 0);
m_pia->readpa_handler().set(FUNC(ccompan_state::input_r));
m_pia->writepb_handler().set(FUNC(ccompan_state::control_w));
m_pia->ca2_handler().set(FUNC(ccompan_state::sled_w));
m_pia->cb2_handler().set(FUNC(ccompan_state::cled_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));
/* video hardware */
PWM_DISPLAY(config, m_display).set_size(10+2, 3);
config.set_default_layout(layout_saitek_ccompan);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25);
}
/******************************************************************************
ROM Definitions
******************************************************************************/
ROM_START( ccompan )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD("2332n_y01a", 0x1000, 0x1000, CRC(a715d51c) SHA1(3e1bd9dc119c914b502f1433ee2d6ce3f477b99a) ) // 2332
ROM_END
} // anonymous namespace
/******************************************************************************
Drivers
******************************************************************************/
// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS
CONS( 1982, ccompan, 0, 0, ccompan, ccompan, ccompan_state, empty_init, "SciSys", "Chess Companion", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
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