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z1013: Correct XTAL value and screen parameters based on schematics; make system clock configurable

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This commit is contained in:
AJR 2022-08-27 19:40:20 -04:00
parent ecb080f006
commit 1596c89b59
1 changed files with 46 additions and 17 deletions
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63
src/mame/robotron/z1013.cpp
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@ -67,6 +67,7 @@ public:
z1013_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_mainpio(*this, "z80pio")
, m_rom(*this, "maincpu")
, m_ram(*this, "mainram")
, m_cass(*this, "cassette")
@ -74,12 +75,19 @@ public:
, m_p_videoram(*this, "videoram")
, m_p_chargen(*this, "chargen")
, m_io_keyboard(*this, "X%u", 0U)
, m_clock_config(*this, "TAKT")
{ }
void z1013k76(machine_config &config);
void z1013a2(machine_config &config);
void z1013(machine_config &config);
DECLARE_INPUT_CHANGED_MEMBER(clock_config_changed);
protected:
virtual void machine_reset() override;
virtual void machine_start() override;
private:
void z1013_keyboard_w(uint8_t data);
uint8_t port_a_r();
@ -95,10 +103,9 @@ private:
uint8_t m_keyboard_line = 0U;
bool m_keyboard_part = false;
virtual void machine_reset() override;
virtual void machine_start() override;
required_device<cpu_device> m_maincpu;
required_device<z80pio_device> m_mainpio;
required_region_ptr<u8> m_rom;
required_shared_ptr<u8> m_ram;
required_device<cassette_image_device> m_cass;
@ -106,6 +113,7 @@ private:
required_shared_ptr<uint8_t> m_p_videoram;
required_region_ptr<u8> m_p_chargen;
optional_ioport_array<9> m_io_keyboard;
required_ioport m_clock_config;
};
@ -120,7 +128,7 @@ void z1013_state::mem_map(address_map &map)
void z1013_state::io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x03).rw("z80pio", FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt));
map(0x00, 0x03).rw(m_mainpio, FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt));
map(0x08, 0x08).w(FUNC(z1013_state::z1013_keyboard_w));
}
@ -171,6 +179,11 @@ static INPUT_PORTS_START( z1013_8x4 )
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_START("TAKT")
PORT_CONFNAME(3, 3, "System Clock") PORT_CHANGED_MEMBER(DEVICE_SELF, z1013_state, clock_config_changed, 0)
PORT_CONFSETTING(3, "1 MHz")
PORT_CONFSETTING(2, "2 MHz")
PORT_CONFSETTING(1, "4 MHz")
INPUT_PORTS_END
static INPUT_PORTS_START( z1013_8x8 )
@ -251,6 +264,11 @@ static INPUT_PORTS_START( z1013_8x8 )
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_START("TAKT")
PORT_CONFNAME(3, 3, "System Clock") PORT_CHANGED_MEMBER(DEVICE_SELF, z1013_state, clock_config_changed, 0)
PORT_CONFSETTING(3, "1 MHz")
PORT_CONFSETTING(2, "2 MHz")
PORT_CONFSETTING(1, "4 MHz")
INPUT_PORTS_END
static INPUT_PORTS_START( z1013 )
@ -259,6 +277,11 @@ static INPUT_PORTS_START( z1013 )
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_START("TAKT")
PORT_CONFNAME(3, 3, "System Clock") PORT_CHANGED_MEMBER(DEVICE_SELF, z1013_state, clock_config_changed, 0)
PORT_CONFSETTING(3, "1 MHz")
PORT_CONFSETTING(2, "2 MHz")
PORT_CONFSETTING(1, "4 MHz")
INPUT_PORTS_END
@ -301,6 +324,17 @@ void z1013_state::machine_reset()
m_keyboard_line = 0U;
m_maincpu->set_state_int(Z80_PC, 0xf000);
const XTAL clock = 8_MHz_XTAL / (1 << m_clock_config->read());
m_maincpu->set_unscaled_clock(clock);
m_mainpio->set_unscaled_clock(clock);
}
INPUT_CHANGED_MEMBER(z1013_state::clock_config_changed)
{
const XTAL clock = 8_MHz_XTAL / (1 << newval);
m_maincpu->set_unscaled_clock(clock);
m_mainpio->set_unscaled_clock(clock);
}
void z1013_state::machine_start()
@ -422,16 +456,13 @@ GFXDECODE_END
void z1013_state::z1013(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(1'000'000));
Z80(config, m_maincpu, 8_MHz_XTAL / 8);
m_maincpu->set_addrmap(AS_PROGRAM, &z1013_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &z1013_state::io_map);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_size(32*8, 32*8);
screen.set_visarea(0, 32*8-1, 0, 32*8-1);
screen.set_raw(8_MHz_XTAL, 512, 0, 256, 302, 0, 256);
screen.set_screen_update(FUNC(z1013_state::screen_update_z1013));
screen.set_palette("palette");
@ -443,10 +474,10 @@ void z1013_state::z1013(machine_config &config)
SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50);
/* devices */
z80pio_device& pio(Z80PIO(config, "z80pio", XTAL(1'000'000)));
pio.in_pa_callback().set(FUNC(z1013_state::port_a_r));
pio.in_pb_callback().set(FUNC(z1013_state::port_b_r));
pio.out_pb_callback().set(FUNC(z1013_state::port_b_w));
Z80PIO(config, m_mainpio, 8_MHz_XTAL / 8);
m_mainpio->in_pa_callback().set(FUNC(z1013_state::port_a_r));
m_mainpio->in_pb_callback().set(FUNC(z1013_state::port_b_r));
m_mainpio->out_pb_callback().set(FUNC(z1013_state::port_b_w));
CASSETTE(config, m_cass);
m_cass->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED);
@ -466,17 +497,15 @@ void z1013_state::z1013a2(machine_config &config)
{
z1013(config);
z80pio_device &pio(*subdevice<z80pio_device>("z80pio"));
pio.in_pb_callback().set(FUNC(z1013_state::a2_port_b_r));
m_mainpio->in_pb_callback().set(FUNC(z1013_state::a2_port_b_r));
}
void z1013_state::z1013k76(machine_config &config)
{
z1013(config);
z80pio_device &pio(*subdevice<z80pio_device>("z80pio"));
pio.in_pb_callback().set(FUNC(z1013_state::k7659_port_b_r));
pio.out_pb_callback().set_nop();
m_mainpio->in_pb_callback().set(FUNC(z1013_state::k7659_port_b_r));
m_mainpio->out_pb_callback().set_nop();
}
/* ROM definition */