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mame/src/mess/drivers/lc80.c
Fabio Priuli 0a3efaf541 modernized speaker device. [Fabio Priuli]
2013-06-04 07:57:44 +00:00

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/***************************************************************************
LC-80
12/05/2009 Skeleton driver.
When first started, the screen is blank. Wait about 8 seconds for
it to introduce itself, then you may use it or paste to it.
The decimal points indicate which side of the display you will
be updating.
Pasting:
0-F : as is
+ (inc) : ^
- (dec) : V
ADR : -
DAT : =
GO : X
Test Paste: (lc80_2 only)
-2000=11^22^33^44^55^66^77^88^99^-2000
Now press up-arrow to confirm the data has been entered.
ToDo:
- Most characters are lost when pasting (lc80, sc80).
****************************************************************************/
/*
TODO:
- HALT led
- KSD11 switch
- banking for ROM 4-5
- Schachcomputer SC-80
- CTC clock inputs
*/
#include "includes/lc80.h"
#include "lc80.lh"
/* Memory Maps */
static ADDRESS_MAP_START( lc80_mem, AS_PROGRAM, 8, lc80_state )
ADDRESS_MAP_GLOBAL_MASK(0x3fff)
AM_RANGE(0x0000, 0x07ff) AM_ROMBANK("bank1")
AM_RANGE(0x0800, 0x0fff) AM_ROMBANK("bank2")
AM_RANGE(0x1000, 0x17ff) AM_ROMBANK("bank3")
AM_RANGE(0x2000, 0x23ff) AM_RAM
AM_RANGE(0x2400, 0x2fff) AM_RAMBANK("bank4")
ADDRESS_MAP_END
#if 0
static ADDRESS_MAP_START( sc80_mem, AS_PROGRAM, 8, lc80_state )
AM_IMPORT_FROM(lc80_mem)
AM_RANGE(0xc000, 0xcfff) AM_ROM
ADDRESS_MAP_END
#endif
static ADDRESS_MAP_START( lc80_io, AS_IO, 8, lc80_state )
ADDRESS_MAP_GLOBAL_MASK(0x1f)
AM_RANGE(0xf4, 0xf7) AM_DEVREADWRITE(Z80PIO1_TAG, z80pio_device, read, write)
AM_RANGE(0xf8, 0xfb) AM_DEVREADWRITE(Z80PIO2_TAG, z80pio_device, read, write)
AM_RANGE(0xec, 0xef) AM_DEVREADWRITE(Z80CTC_TAG, z80ctc_device, read, write)
ADDRESS_MAP_END
/* Input Ports */
INPUT_CHANGED_MEMBER( lc80_state::trigger_reset )
{
m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? CLEAR_LINE : ASSERT_LINE);
}
INPUT_CHANGED_MEMBER( lc80_state::trigger_nmi )
{
m_maincpu->set_input_line(INPUT_LINE_NMI, newval ? CLEAR_LINE : ASSERT_LINE);
}
static INPUT_PORTS_START( lc80 )
PORT_START("Y0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("-") PORT_CODE(KEYCODE_DOWN) PORT_CHAR('V')
PORT_START("Y1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("LD") PORT_CODE(KEYCODE_L)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6')
PORT_START("Y2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ST") PORT_CODE(KEYCODE_S)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DAT") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
PORT_START("Y3")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("EX") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4')
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8')
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ADR") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
PORT_START("SPECIAL")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RES") PORT_CODE(KEYCODE_F10) PORT_CHANGED_MEMBER(DEVICE_SELF, lc80_state, trigger_reset, 0)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("NMI") PORT_CODE(KEYCODE_ESC) PORT_CHANGED_MEMBER(DEVICE_SELF, lc80_state, trigger_nmi, 0)
INPUT_PORTS_END
/* Z80-CTC Interface */
WRITE_LINE_MEMBER( lc80_state::ctc_z0_w )
{
}
WRITE_LINE_MEMBER( lc80_state::ctc_z1_w )
{
}
WRITE_LINE_MEMBER( lc80_state::ctc_z2_w )
{
}
static Z80CTC_INTERFACE( ctc_intf )
{
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0), /* interrupt handler */
DEVCB_DRIVER_LINE_MEMBER(lc80_state, ctc_z0_w), /* ZC/TO0 callback */
DEVCB_DRIVER_LINE_MEMBER(lc80_state, ctc_z1_w), /* ZC/TO1 callback */
DEVCB_DRIVER_LINE_MEMBER(lc80_state, ctc_z2_w) /* ZC/TO2 callback */
};
/* Z80-PIO Interface */
void lc80_state::update_display()
{
int i;
for (i = 0; i < 6; i++)
{
if (!BIT(m_digit, i)) output_set_digit_value(5 - i, m_segment);
}
}
WRITE8_MEMBER( lc80_state::pio1_pa_w )
{
/*
bit description
PA0 VQE23 segment B
PA1 VQE23 segment F
PA2 VQE23 segment A
PA3 VQE23 segment G
PA4 VQE23 segment DP
PA5 VQE23 segment C
PA6 VQE23 segment E
PA7 VQE23 segment D
*/
m_segment = BITSWAP8(~data, 4, 3, 1, 6, 7, 5, 0, 2);
update_display();
}
READ8_MEMBER( lc80_state::pio1_pb_r )
{
/*
bit description
PB0 tape input
PB1 tape output
PB2 digit 0
PB3 digit 1
PB4 digit 2
PB5 digit 3
PB6 digit 4
PB7 digit 5
*/
return (m_cassette->input() < +0.0);
}
WRITE8_MEMBER( lc80_state::pio1_pb_w )
{
/*
bit description
PB0 tape input
PB1 tape output, speaker output, OUT led
PB2 digit 0
PB3 digit 1
PB4 digit 2
PB5 digit 3
PB6 digit 4
PB7 digit 5
*/
/* tape output */
m_cassette->output( BIT(data, 1) ? +1.0 : -1.0);
/* speaker */
m_speaker->level_w(!BIT(data, 1));
/* OUT led */
output_set_led_value(0, !BIT(data, 1));
/* keyboard */
m_digit = data >> 2;
/* display */
update_display();
}
static Z80PIO_INTERFACE( pio1_intf )
{
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0), /* callback when change interrupt status */
DEVCB_NULL, /* port A read callback */
DEVCB_DRIVER_MEMBER(lc80_state, pio1_pa_w), /* port A write callback */
DEVCB_NULL, /* portA ready active callback */
DEVCB_DRIVER_MEMBER(lc80_state, pio1_pb_r), /* port B read callback */
DEVCB_DRIVER_MEMBER(lc80_state, pio1_pb_w), /* port B write callback */
DEVCB_NULL /* portB ready active callback */
};
READ8_MEMBER( lc80_state::pio2_pb_r )
{
/*
bit description
PB0
PB1
PB2
PB3
PB4 key row 0
PB5 key row 1
PB6 key row 2
PB7 key row 3
*/
UINT8 data = 0xf0;
int i;
for (i = 0; i < 6; i++)
{
if (!BIT(m_digit, i))
{
if (!BIT(m_y0->read(), i)) data &= ~0x10;
if (!BIT(m_y1->read(), i)) data &= ~0x20;
if (!BIT(m_y2->read(), i)) data &= ~0x40;
if (!BIT(m_y3->read(), i)) data &= ~0x80;
}
}
return data;
}
static Z80PIO_INTERFACE( pio2_intf )
{
DEVCB_CPU_INPUT_LINE(Z80_TAG, INPUT_LINE_IRQ0), /* callback when change interrupt status */
DEVCB_NULL, /* port A read callback */
DEVCB_NULL, /* port A write callback */
DEVCB_NULL, /* portA ready active callback */
DEVCB_DRIVER_MEMBER(lc80_state, pio2_pb_r), /* port B read callback */
DEVCB_NULL, /* port B write callback */
DEVCB_NULL /* portB ready active callback */
};
/* Z80 Daisy Chain */
static const z80_daisy_config lc80_daisy_chain[] =
{
{ Z80CTC_TAG },
{ Z80PIO2_TAG },
{ Z80PIO1_TAG },
{ NULL }
};
/* Machine Initialization */
void lc80_state::machine_start()
{
address_space &program = m_maincpu->space(AS_PROGRAM);
/* setup memory banking */
membank("bank1")->configure_entry(0, m_rom->base()); // TODO
membank("bank1")->configure_entry(1, m_rom->base());
membank("bank1")->set_entry(1);
membank("bank2")->configure_entry(0, m_rom->base() + 0x800); // TODO
membank("bank2")->configure_entry(1, m_rom->base() + 0x800);
membank("bank2")->set_entry(1);
membank("bank3")->configure_entry(0, m_rom->base() + 0x1000); // TODO
membank("bank3")->configure_entry(1, m_rom->base() + 0x1000);
membank("bank3")->set_entry(1);
membank("bank4")->configure_entry(0, m_rom->base() + 0x2000);
membank("bank4")->set_entry(0);
program.install_readwrite_bank(0x0000, 0x07ff, "bank1");
program.install_readwrite_bank(0x0800, 0x0fff, "bank2");
program.install_readwrite_bank(0x1000, 0x17ff, "bank3");
switch (m_ram->size())
{
case 1*1024:
program.install_readwrite_bank(0x2000, 0x23ff, "bank4");
program.unmap_readwrite(0x2400, 0x2fff);
break;
case 2*1024:
program.install_readwrite_bank(0x2000, 0x27ff, "bank4");
program.unmap_readwrite(0x2800, 0x2fff);
break;
case 3*1024:
program.install_readwrite_bank(0x2000, 0x2bff, "bank4");
program.unmap_readwrite(0x2c00, 0x2fff);
break;
case 4*1024:
program.install_readwrite_bank(0x2000, 0x2fff, "bank4");
break;
}
/* register for state saving */
save_item(NAME(m_digit));
save_item(NAME(m_segment));
}
/* Machine Driver */
static const cassette_interface lc80_cassette_interface =
{
cassette_default_formats,
NULL,
(cassette_state)(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED),
NULL,
NULL
};
static MACHINE_CONFIG_START( lc80, lc80_state )
/* basic machine hardware */
MCFG_CPU_ADD(Z80_TAG, Z80, 900000) /* UD880D */
MCFG_CPU_PROGRAM_MAP(lc80_mem)
MCFG_CPU_IO_MAP(lc80_io)
/* video hardware */
MCFG_DEFAULT_LAYOUT( layout_lc80 )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
/* devices */
MCFG_Z80CTC_ADD(Z80CTC_TAG, 900000, ctc_intf)
MCFG_Z80PIO_ADD(Z80PIO1_TAG, 900000, pio1_intf)
MCFG_Z80PIO_ADD(Z80PIO2_TAG, 900000, pio2_intf)
MCFG_CASSETTE_ADD("cassette", lc80_cassette_interface)
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("1K")
MCFG_RAM_EXTRA_OPTIONS("2K,3K,4K")
MACHINE_CONFIG_END
static MACHINE_CONFIG_START( lc80_2, lc80_state )
/* basic machine hardware */
MCFG_CPU_ADD(Z80_TAG, Z80, 1800000) /* UD880D */
MCFG_CPU_PROGRAM_MAP(lc80_mem)
MCFG_CPU_IO_MAP(lc80_io)
/* video hardware */
MCFG_DEFAULT_LAYOUT( layout_lc80 )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
/* devices */
MCFG_Z80CTC_ADD(Z80CTC_TAG, 900000, ctc_intf)
MCFG_Z80PIO_ADD(Z80PIO1_TAG, 900000, pio1_intf)
MCFG_Z80PIO_ADD(Z80PIO2_TAG, 900000, pio2_intf)
MCFG_CASSETTE_ADD("cassette", lc80_cassette_interface)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("4K")
MACHINE_CONFIG_END
#if 0
static MACHINE_CONFIG_DERIVED( sc80, lc80_2 )
/* basic machine hardware */
MCFG_CPU_MODIFY(Z80_TAG)
MCFG_CPU_PROGRAM_MAP(sc80_mem)
MACHINE_CONFIG_END
#endif
/* ROMs */
ROM_START( lc80 )
ROM_REGION( 0x10000, Z80_TAG, 0 )
ROM_SYSTEM_BIOS( 0, "u505", "LC 80 (2x U505)" )
ROMX_LOAD( "lc80.d202", 0x0000, 0x0400, CRC(e754ef53) SHA1(044440b13e62addbc3f6a77369cfd16f99b39752), ROM_BIOS(1) )
ROMX_LOAD( "lc80.d203", 0x0800, 0x0400, CRC(2b544da1) SHA1(3a6cbd0c57c38eadb7055dca4b396c348567d1d5), ROM_BIOS(1) )
ROM_SYSTEM_BIOS( 1, "2716", "LC 80 (2716)" )
ROMX_LOAD( "lc80_2716.bin", 0x0000, 0x0800, CRC(b3025934) SHA1(6fff953f0f1eee829fd774366313ab7e8053468c), ROM_BIOS(2))
ROM_END
ROM_START( lc80_2 )
ROM_REGION( 0x10000, Z80_TAG, 0 )
ROM_LOAD( "lc80_2.bin", 0x0000, 0x1000, CRC(2e06d768) SHA1(d9cddaf847831e4ab21854c0f895348b7fda20b8) )
ROM_END
ROM_START( sc80 )
ROM_REGION( 0x10000, Z80_TAG, 0 )
ROM_LOAD( "lc80e-0000-schach.rom", 0x0000, 0x1000, CRC(e3cca61d) SHA1(f2be3f2a9d3780d59657e49b3abeffb0fc13db89) )
ROM_LOAD( "lc80e-1000-schach.rom", 0x1000, 0x1000, CRC(b0323160) SHA1(0ea019b0944736ae5b842bf9aa3537300f259b98) )
ROM_LOAD( "lc80e-c000-schach.rom", 0xc000, 0x1000, CRC(9c858d9c) SHA1(2f7b3fd046c965185606253f6cd9372da289ca6f) )
ROM_END
/* System Drivers */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1984, lc80, 0, 0, lc80, lc80, driver_device, 0, "VEB Mikroelektronik", "Lerncomputer LC 80", GAME_SUPPORTS_SAVE )
COMP( 1984, lc80_2, lc80, 0, lc80_2, lc80, driver_device, 0, "VEB Mikroelektronik", "Lerncomputer LC 80.2", GAME_SUPPORTS_SAVE )
COMP( 1984, sc80, lc80, 0, lc80_2, lc80, driver_device, 0, "VEB Mikroelektronik", "Schachcomputer SC-80", GAME_SUPPORTS_SAVE )
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