// license:BSD-3-Clause
// copyright-holders:Jonathan Gevaryahu, Sandro Ronco, hap
// thanks-to:Berger, Sean Riddle
/******************************************************************************
Fidelity CC10 / Fidelity ACR
TODO:
- What is cc10 8255 PB.7 for? When set, maximum levels is 3, like in CC3. But
there is no CC3 with 16 buttons, and things get glitchy in this mode.
*******************************************************************************
Fidelity Chess Challenger 10 (CCX)
-------------------
3 versions are known to exist: A,B,C. Strangely, version C(UCC10) has an 8080
instead of Z80 and no beeper, it's on CC1-based hardware.
Z80A CPU @ 4MHz, NEC D8255C
4KB ROM(NEC 2332A), 2*256 bytes RAM(4*NEC 2111AL-4)
The beeper is via a 556 timer, fixed-frequency at around 1300-1400Hz.
Checker Challenger 4 (ACR) is on the same PCB, twice less RAM and the beeper gone.
******************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/bankdev.h"
#include "machine/i8255.h"
#include "machine/timer.h"
#include "sound/beep.h"
#include "video/pwm.h"
#include "speaker.h"
// internal artwork
#include "fidel_acr.lh" // clickable
#include "fidel_cc10.lh" // clickable
namespace {
class ccx_state : public driver_device
{
public:
ccx_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_mainmap(*this, "mainmap"),
m_ppi8255(*this, "ppi8255"),
m_display(*this, "display"),
m_beeper_off(*this, "beeper_off"),
m_beeper(*this, "beeper"),
m_inputs(*this, "IN.%u", 0)
{ }
// RE button is tied to Z80 RESET pin
DECLARE_INPUT_CHANGED_MEMBER(reset_button) { m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? ASSERT_LINE : CLEAR_LINE); }
// machine drivers
void acr(machine_config &config);
void ccx(machine_config &config);
protected:
virtual void machine_start() override;
private:
// devices/pointers
required_device<cpu_device> m_maincpu;
required_device<address_map_bank_device> m_mainmap;
required_device<i8255_device> m_ppi8255;
required_device<pwm_display_device> m_display;
optional_device<timer_device> m_beeper_off;
optional_device<beep_device> m_beeper;
required_ioport_array<4> m_inputs;
TIMER_DEVICE_CALLBACK_MEMBER(beeper_off) { m_beeper->set_state(0); }
// address maps
void acr_map(address_map &map);
void ccx_map(address_map &map);
void main_trampoline(address_map &map);
void main_io(address_map &map);
u8 main_trampoline_r(offs_t offset);
void main_trampoline_w(offs_t offset, u8 data);
// I/O handlers
void update_display();
DECLARE_WRITE8_MEMBER(ppi_porta_w);
DECLARE_WRITE8_MEMBER(ppi_portb_w);
DECLARE_READ8_MEMBER(ppi_portc_r);
DECLARE_WRITE8_MEMBER(ppi_portc_w);
u8 m_inp_mux;
u8 m_led_select;
u8 m_7seg_data;
};
void ccx_state::machine_start()
{
// zerofill
m_inp_mux = 0;
m_led_select = 0;
m_7seg_data = 0;
// register for savestates
save_item(NAME(m_inp_mux));
save_item(NAME(m_led_select));
save_item(NAME(m_7seg_data));
}
/******************************************************************************
I/O
******************************************************************************/
// I8255 PPI
void ccx_state::update_display()
{
// 4 7segs + 2 leds
m_display->matrix(m_led_select, m_7seg_data);
}
WRITE8_MEMBER(ccx_state::ppi_porta_w)
{
// d7: enable beeper on falling edge (556 monostable) (unpopulated on ACR)
if (m_beeper != nullptr && ~data & m_7seg_data & 0x80 && !m_beeper_off->enabled())
{
m_beeper->set_state(1);
m_beeper_off->adjust(attotime::from_msec(80)); // duration is approximate
}
// d0-d6: digit segment data
m_7seg_data = bitswap<8>(data,7,0,1,2,3,4,5,6);
update_display();
}
WRITE8_MEMBER(ccx_state::ppi_portb_w)
{
// d0: lose led, d1: check(win) led
// d2-d5: digit select
m_led_select = bitswap<6>(data,0,1,5,4,3,2);
update_display();
}
READ8_MEMBER(ccx_state::ppi_portc_r)
{
u8 data = 0;
// d0-d3: multiplexed inputs (active low)
for (int i = 0; i < 4; i++)
if (BIT(m_inp_mux, i))
data |= m_inputs[i]->read();
return ~data & 0xf;
}
WRITE8_MEMBER(ccx_state::ppi_portc_w)
{
// d4-d7: input mux (inverted)
m_inp_mux = ~data >> 4 & 0xf;
}
/******************************************************************************
Address Maps
******************************************************************************/
void ccx_state::acr_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x0fff).rom().region("maincpu", 0); // _A12
map(0x2000, 0x20ff).mirror(0x0f00).ram(); // A13
}
void ccx_state::ccx_map(address_map &map)
{
acr_map(map);
map(0x4000, 0x40ff).mirror(0x0f00).ram(); // A14
}
// PCB design is prone to bus conflicts, but assuming software behaves fine,
// it will access ROM at $0xxx, RAM at $3xxx and $5xxx
void ccx_state::main_trampoline_w(offs_t offset, u8 data)
{
if (offset & 0x2000)
m_mainmap->write8(offset & 0x2fff, data);
if (offset & 0x4000)
m_mainmap->write8(offset & 0x4fff, data);
}
u8 ccx_state::main_trampoline_r(offs_t offset)
{
u8 data = 0xff;
if (~offset & 0x1000)
data &= m_mainmap->read8(offset & 0x0fff);
if (offset & 0x2000)
data &= m_mainmap->read8(offset & 0x2fff);
if (offset & 0x4000)
data &= m_mainmap->read8(offset & 0x4fff);
return data;
}
void ccx_state::main_trampoline(address_map &map)
{
map.global_mask(0x7fff);
map(0x0000, 0x7fff).rw(FUNC(ccx_state::main_trampoline_r), FUNC(ccx_state::main_trampoline_w));
}
void ccx_state::main_io(address_map &map)
{
map.global_mask(0x03);
map(0x00, 0x03).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write));
}
/******************************************************************************
Input Ports
******************************************************************************/
static INPUT_PORTS_START( ccx )
PORT_START("IN.0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("LV") PORT_CODE(KEYCODE_L)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("A1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_A)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("E5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_E)
PORT_START("IN.1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Speaker") PORT_CODE(KEYCODE_SPACE)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("DM") PORT_CODE(KEYCODE_M)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("B2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_B)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("F6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_F)
PORT_START("IN.2")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("CL") PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PB") PORT_CODE(KEYCODE_O)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("C3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_C)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("G7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_G)
PORT_START("IN.3")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("EN") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PV") PORT_CODE(KEYCODE_V)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("D4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_D)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("H8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_H)
PORT_START("RESET") // is not on matrix IN.0 d0
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RE") PORT_CODE(KEYCODE_R) PORT_CHANGED_MEMBER(DEVICE_SELF, ccx_state, reset_button, 0)
INPUT_PORTS_END
static INPUT_PORTS_START( acr )
PORT_START("IN.0")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("LV") PORT_CODE(KEYCODE_L)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PV") PORT_CODE(KEYCODE_V)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_0_PAD)
PORT_START("IN.1")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("CL") PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD)
PORT_START("IN.2")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("TO") PORT_CODE(KEYCODE_T)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD)
PORT_START("IN.3")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("EN") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_9_PAD)
PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD)
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD)
PORT_START("RESET") // is not on matrix IN.0 d0
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RE") PORT_CODE(KEYCODE_R) PORT_CHANGED_MEMBER(DEVICE_SELF, ccx_state, reset_button, 0)
INPUT_PORTS_END
/******************************************************************************
Machine Drivers
******************************************************************************/
void ccx_state::acr(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, 4_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &ccx_state::main_trampoline);
ADDRESS_MAP_BANK(config, m_mainmap).set_map(&ccx_state::acr_map).set_options(ENDIANNESS_LITTLE, 8, 16);
m_maincpu->set_addrmap(AS_IO, &ccx_state::main_io);
I8255(config, m_ppi8255);
m_ppi8255->out_pa_callback().set(FUNC(ccx_state::ppi_porta_w));
m_ppi8255->tri_pa_callback().set_constant(0);
m_ppi8255->in_pb_callback().set_constant(0);
m_ppi8255->out_pb_callback().set(FUNC(ccx_state::ppi_portb_w));
m_ppi8255->tri_pb_callback().set_constant(0);
m_ppi8255->in_pc_callback().set(FUNC(ccx_state::ppi_portc_r));
m_ppi8255->out_pc_callback().set(FUNC(ccx_state::ppi_portc_w));
/* video hardware */
PWM_DISPLAY(config, m_display).set_size(6, 8);
m_display->set_segmask(0xf, 0x7f);
config.set_default_layout(layout_fidel_acr);
}
void ccx_state::ccx(machine_config &config)
{
acr(config);
/* basic machine hardware */
m_mainmap->set_addrmap(AS_PROGRAM, &ccx_state::ccx_map);
config.set_default_layout(layout_fidel_cc10);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
BEEP(config, m_beeper, 1360); // approximation, from 556 timer ic
m_beeper->add_route(ALL_OUTPUTS, "speaker", 0.25);
TIMER(config, "beeper_off").configure_generic(FUNC(ccx_state::beeper_off));
}
/******************************************************************************
ROM Definitions
******************************************************************************/
ROM_START( cc10 ) // model CCX, PCB label P241C-1
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "cn19053n_cc10b", 0x0000, 0x1000, CRC(afd3ca99) SHA1(870d09b2b52ccb8572d69642c59b5215d5fb26ab) ) // 2332
ROM_END
ROM_START( cc10a ) // model CCX
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "cc-10", 0x0000, 0x1000, CRC(853db345) SHA1(36799e204eb0aef915eb483a5f43372fca5a0fc0) ) // MCM68A332P
ROM_END
ROM_START( checkc4 ) // model ACR, PCB label P241C
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "d2332c_043", 0x0000, 0x1000, CRC(4c251d90) SHA1(474d54b05971f2a3208bab56dc6e27f03781c541) ) // no custom label
ROM_END
} // anonymous namespace
/******************************************************************************
Drivers
******************************************************************************/
// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS
CONS( 1978, cc10, 0, 0, ccx, ccx, ccx_state, empty_init, "Fidelity Electronics", "Chess Challenger 10 (model CCX, rev. B)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK )
CONS( 1978, cc10a, cc10, 0, ccx, ccx, ccx_state, empty_init, "Fidelity Electronics", "Chess Challenger 10 (model CCX)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK ) // aka version A
CONS( 1978, checkc4, 0, 0, acr, acr, ccx_state, empty_init, "Fidelity Electronics", "Checker Challenger 4", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_NO_SOUND_HW )