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-rw-r--r--src/mess/drivers/px4.c1590
1 files changed, 0 insertions, 1590 deletions
diff --git a/src/mess/drivers/px4.c b/src/mess/drivers/px4.c
deleted file mode 100644
index 7a07a87e46a..00000000000
--- a/src/mess/drivers/px4.c
+++ /dev/null
@@ -1,1590 +0,0 @@
-// license:GPL-2.0+
-// copyright-holders:Dirk Best
-/***************************************************************************
-
- Epson PX-4
-
- Note: We are missing a dump of the slave 7508 CPU that controls
- the keyboard and some other things.
-
-***************************************************************************/
-
-#include "bus/rs232/rs232.h"
-#include "cpu/z80/z80.h"
-#include "machine/ram.h"
-#include "bus/epson_sio/epson_sio.h"
-#include "bus/centronics/ctronics.h"
-#include "imagedev/cassette.h"
-#include "machine/ram.h"
-#include "machine/nvram.h"
-#include "sound/speaker.h"
-#include "bus/generic/slot.h"
-#include "bus/generic/carts.h"
-#include "coreutil.h"
-#include "px4.lh"
-
-
-//**************************************************************************
-// CONSTANTS
-//**************************************************************************
-
-#define VERBOSE 1
-
-
-//**************************************************************************
-// MACROS
-//**************************************************************************
-
-#define ART_TX_ENABLED (BIT(m_artcr, 0))
-#define ART_RX_ENABLED (BIT(m_artcr, 2))
-#define ART_BREAK (BIT(m_artcr, 3))
-
-
-//**************************************************************************
-// TYPE DEFINITIONS
-//**************************************************************************
-
-class px4_state : public driver_device, public device_serial_interface
-{
-public:
- px4_state(const machine_config &mconfig, device_type type, const char *tag) :
- driver_device(mconfig, type, tag),
- device_serial_interface(mconfig, *this),
- m_z80(*this, "maincpu"),
- m_ram(*this, RAM_TAG),
- m_nvram(*this, "nvram"),
- m_centronics(*this, "centronics"),
- m_ext_cas(*this, "extcas"),
- m_ext_cas_timer(*this, "extcas_timer"),
- m_speaker(*this, "speaker"),
- m_sio(*this, "sio"),
- m_rs232(*this, "rs232"),
- m_caps1(*this, "capsule1"), m_caps2(*this, "capsule2"),
- m_caps1_rom(NULL), m_caps2_rom(NULL),
- m_ctrl1(0), m_icrb(0), m_bankr(0),
- m_isr(0), m_ier(0), m_str(0), m_sior(0xbf),
- m_frc_value(0), m_frc_latch(0),
- m_vadr(0), m_yoff(0),
- m_receive_timer(NULL), m_transmit_timer(NULL),
- m_artdir(0xff), m_artdor(0xff), m_artsr(0), m_artcr(0),
- m_swr(0),
- m_one_sec_int_enabled(true), m_alarm_int_enabled(true), m_key_int_enabled(true),
- m_key_status(0), m_interrupt_status(0),
- m_time(), m_clock_state(0),
- m_ear_last_state(0),
- m_sio_pin(0), m_serial_rx(0), m_rs232_dcd(0), m_rs232_cts(0),
- m_centronics_busy(0), m_centronics_perror(0)
- { }
-
- DECLARE_DRIVER_INIT( px4 );
-
- DECLARE_PALETTE_INIT( px4 );
- UINT32 screen_update_px4(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
-
- DECLARE_READ8_MEMBER( icrlc_r );
- DECLARE_WRITE8_MEMBER( ctrl1_w );
- DECLARE_READ8_MEMBER( icrhc_r );
- DECLARE_WRITE8_MEMBER( cmdr_w );
- DECLARE_READ8_MEMBER( icrlb_r );
- DECLARE_WRITE8_MEMBER( ctrl2_w );
- DECLARE_READ8_MEMBER( icrhb_r );
- DECLARE_READ8_MEMBER( isr_r );
- DECLARE_WRITE8_MEMBER( ier_w );
- DECLARE_READ8_MEMBER( str_r );
- DECLARE_WRITE8_MEMBER( bankr_w );
- DECLARE_READ8_MEMBER( sior_r );
- DECLARE_WRITE8_MEMBER( sior_w );
- DECLARE_WRITE8_MEMBER( vadr_w );
- DECLARE_WRITE8_MEMBER( yoff_w );
- DECLARE_WRITE8_MEMBER( fr_w );
- DECLARE_WRITE8_MEMBER( spur_w );
- DECLARE_READ8_MEMBER( ctgif_r );
- DECLARE_WRITE8_MEMBER( ctgif_w );
- DECLARE_READ8_MEMBER( artdir_r );
- DECLARE_WRITE8_MEMBER( artdor_w );
- DECLARE_READ8_MEMBER( artsr_r );
- DECLARE_WRITE8_MEMBER( artmr_w );
- DECLARE_READ8_MEMBER( iostr_r );
- DECLARE_WRITE8_MEMBER( artcr_w );
- DECLARE_WRITE8_MEMBER( swr_w );
- DECLARE_WRITE8_MEMBER( ioctlr_w );
-
- DECLARE_INPUT_CHANGED_MEMBER( key_callback );
-
- TIMER_DEVICE_CALLBACK_MEMBER( ext_cassette_read );
- TIMER_DEVICE_CALLBACK_MEMBER( frc_tick );
- TIMER_DEVICE_CALLBACK_MEMBER( upd7508_1sec_callback );
-
- // serial
- DECLARE_WRITE_LINE_MEMBER( sio_rx_w );
- DECLARE_WRITE_LINE_MEMBER( sio_pin_w );
- DECLARE_WRITE_LINE_MEMBER( rs232_rx_w );
- DECLARE_WRITE_LINE_MEMBER( rs232_dcd_w );
- DECLARE_WRITE_LINE_MEMBER( rs232_dsr_w );
- DECLARE_WRITE_LINE_MEMBER( rs232_cts_w );
- TIMER_CALLBACK_MEMBER( transmit_data );
- TIMER_CALLBACK_MEMBER( receive_data );
-
- // centronics
- DECLARE_WRITE_LINE_MEMBER( centronics_busy_w ) { m_centronics_busy = state; }
- DECLARE_WRITE_LINE_MEMBER( centronics_perror_w ) { m_centronics_perror = state; }
-
-protected:
- // driver_device overrides
- virtual void machine_start();
- virtual void machine_reset();
-
- // device_serial_interface overrides
- virtual void tra_callback();
- virtual void tra_complete();
- virtual void rcv_callback();
- virtual void rcv_complete();
-
- virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
-
-private:
- // z80 interrupt sources
- enum
- {
- INT0_7508 = 0x01,
- INT1_ART = 0x02,
- INT2_ICF = 0x04,
- INT3_OVF = 0x08,
- INT4_EXT = 0x10
- };
-
- // 7508 interrupt sources
- enum
- {
- UPD7508_INT_ALARM = 0x02,
- UPD7508_INT_POWER_FAIL = 0x04,
- UPD7508_INT_7508_RESET = 0x08,
- UPD7508_INT_Z80_RESET = 0x10,
- UPD7508_INT_ONE_SECOND = 0x20
- };
-
- // art (asynchronous receiver transmitter)
- enum
- {
- ART_TXRDY = 0x01, // output buffer empty
- ART_RXRDY = 0x02, // data byte received
- ART_TXEMPTY = 0x04, // transmit buffer empty
- ART_PE = 0x08, // parity error
- ART_OE = 0x10, // overrun error
- ART_FE = 0x20 // framing error
- };
-
- void gapnit_interrupt();
-
- DECLARE_WRITE_LINE_MEMBER( serial_rx_w );
- void txd_w(int data);
-
- void install_rom_capsule(address_space &space, int size, memory_region *mem);
-
- // internal devices
- required_device<cpu_device> m_z80;
- required_device<ram_device> m_ram;
- required_device<nvram_device> m_nvram;
- required_device<centronics_device> m_centronics;
- required_device<cassette_image_device> m_ext_cas;
- required_device<timer_device> m_ext_cas_timer;
- required_device<speaker_sound_device> m_speaker;
- required_device<epson_sio_device> m_sio;
- required_device<rs232_port_device> m_rs232;
- required_device<generic_slot_device> m_caps1;
- required_device<generic_slot_device> m_caps2;
-
- memory_region *m_caps1_rom;
- memory_region *m_caps2_rom;
-
- // gapnit register
- UINT8 m_ctrl1;
- UINT16 m_icrb;
- UINT8 m_bankr;
- UINT8 m_isr;
- UINT8 m_ier;
- UINT8 m_str;
- UINT8 m_sior;
-
- // gapnit internal
- UINT16 m_frc_value;
- UINT16 m_frc_latch;
-
- // gapndi register
- UINT8 m_vadr;
- UINT8 m_yoff;
-
- // gapnio
- emu_timer *m_receive_timer;
- emu_timer *m_transmit_timer;
- UINT8 m_artdir;
- UINT8 m_artdor;
- UINT8 m_artsr;
- UINT8 m_artcr;
- UINT8 m_swr;
-
- // 7508 internal
- bool m_one_sec_int_enabled;
- bool m_alarm_int_enabled;
- bool m_key_int_enabled;
-
- UINT8 m_key_status;
- UINT8 m_interrupt_status;
-
- system_time m_time;
- int m_clock_state;
-
- // external cassette/barcode reader
- int m_ear_last_state;
-
- // serial
- int m_sio_pin;
- int m_serial_rx;
- int m_rs232_dcd;
- int m_rs232_cts;
-
- // centronics
- int m_centronics_busy;
- int m_centronics_perror;
-};
-
-class px4p_state : public px4_state
-{
-public:
- px4p_state(const machine_config &mconfig, device_type type, const char *tag) :
- px4_state(mconfig, type, tag),
- m_rdnvram(*this, "rdnvram"),
- m_rdsocket(*this, "ramdisk_socket"),
- m_ramdisk_address(0),
- m_ramdisk(NULL)
- { }
-
- DECLARE_DRIVER_INIT( px4p );
-
- DECLARE_PALETTE_INIT( px4p );
-
- DECLARE_WRITE8_MEMBER( ramdisk_address_w );
- DECLARE_READ8_MEMBER( ramdisk_data_r );
- DECLARE_WRITE8_MEMBER( ramdisk_data_w );
- DECLARE_READ8_MEMBER( ramdisk_control_r );
-
-protected:
- // driver_device overrides
- virtual void machine_start();
-
-private:
- required_device<nvram_device> m_rdnvram;
- required_device<generic_slot_device> m_rdsocket;
-
- offs_t m_ramdisk_address;
- UINT8 *m_ramdisk;
-};
-
-
-//**************************************************************************
-// GAPNIT
-//**************************************************************************
-
-// process interrupts
-void px4_state::gapnit_interrupt()
-{
- // any interrupts enabled and pending?
- if (m_ier & m_isr & INT0_7508)
- {
- m_isr &= ~INT0_7508;
- m_z80->set_input_line_and_vector(0, ASSERT_LINE, 0xf0);
- }
- else if (m_ier & m_isr & INT1_ART)
- m_z80->set_input_line_and_vector(0, ASSERT_LINE, 0xf2);
- else if (m_ier & m_isr & INT2_ICF)
- m_z80->set_input_line_and_vector(0, ASSERT_LINE, 0xf4);
- else if (m_ier & m_isr & INT3_OVF)
- m_z80->set_input_line_and_vector(0, ASSERT_LINE, 0xf6);
- else if (m_ier & m_isr & INT4_EXT)
- m_z80->set_input_line_and_vector(0, ASSERT_LINE, 0xf8);
- else
- m_z80->set_input_line(0, CLEAR_LINE);
-}
-
-// external cassette or barcode reader input
-TIMER_DEVICE_CALLBACK_MEMBER( px4_state::ext_cassette_read )
-{
- UINT8 result;
- int trigger = 0;
-
- // sample input state
- result = (m_ext_cas->input() > 0) ? 1 : 0;
-
- // detect transition
- switch ((m_ctrl1 >> 1) & 0x03)
- {
- case 0: // trigger inhibit
- trigger = 0;
- break;
- case 1: // falling edge trigger
- trigger = m_ear_last_state == 1 && result == 0;
- break;
- case 2: // rising edge trigger
- trigger = m_ear_last_state == 0 && result == 1;
- break;
- case 3: // rising/falling edge trigger
- trigger = m_ear_last_state != result;
- break;
- }
-
- // generate an interrupt if we need to trigger
- if (trigger)
- {
- m_icrb = m_frc_value;
- m_isr |= INT2_ICF;
- gapnit_interrupt();
- }
-
- // save last state
- m_ear_last_state = result;
-}
-
-// free running counter
-TIMER_DEVICE_CALLBACK_MEMBER( px4_state::frc_tick )
-{
- m_frc_value++;
-
- if (m_frc_value == 0)
- {
- m_isr |= INT3_OVF;
- gapnit_interrupt();
- }
-}
-
-// input capture register low command trigger
-READ8_MEMBER( px4_state::icrlc_r )
-{
- if (VERBOSE)
- logerror("%s: icrlc_r\n", machine().describe_context());
-
- // latch value
- m_frc_latch = m_frc_value;
-
- return m_frc_latch & 0xff;
-}
-
-// control register 1
-WRITE8_MEMBER( px4_state::ctrl1_w )
-{
- const int rcv_rates[] = { 110, 150, 300, 600, 1200, 2400, 4800, 9600, 75, 1200, 19200, 38400, 200 };
- const int tra_rates[] = { 110, 150, 300, 600, 1200, 2400, 4800, 9600, 1200, 75, 19200, 38400, 200 };
-
- if (VERBOSE)
- logerror("%s: ctrl1_w (0x%02x)\n", machine().describe_context(), data);
-
- // baudrate generator
- int baud = data >> 4;
-
- if (baud <= 12)
- {
- if (VERBOSE)
- logerror("rcv baud = %d, tra baud = %d\n", rcv_rates[baud], tra_rates[baud]);
-
- set_rcv_rate(rcv_rates[baud]);
- set_tra_rate(tra_rates[baud]);
- }
-
- m_ctrl1 = data;
-}
-
-// input capture register high command trigger
-READ8_MEMBER( px4_state::icrhc_r )
-{
- if (VERBOSE)
- logerror("%s: icrhc_r\n", machine().describe_context());
-
- return (m_frc_latch >> 8) & 0xff;
-}
-
-// command register
-WRITE8_MEMBER( px4_state::cmdr_w )
-{
- if (0)
- logerror("%s: cmdr_w (0x%02x)\n", machine().describe_context(), data);
-
- // clear overflow interrupt?
- if (BIT(data, 2))
- {
- m_isr &= ~INT3_OVF;
- gapnit_interrupt();
- }
-}
-
-// input capture register low barcode trigger
-READ8_MEMBER( px4_state::icrlb_r )
-{
- if (VERBOSE)
- logerror("%s: icrlb_r\n", machine().describe_context());
-
- return m_icrb & 0xff;
-}
-
-// control register 2
-WRITE8_MEMBER( px4_state::ctrl2_w )
-{
- if (VERBOSE)
- logerror("%s: ctrl2_w (0x%02x)\n", machine().describe_context(), data);
-
- // bit 0, MIC, cassette output
- m_ext_cas->output( BIT(data, 0) ? -1.0 : +1.0);
-
- // bit 1, RMT, cassette motor
- if (BIT(data, 1))
- {
- m_ext_cas->change_state(CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR);
- m_ext_cas_timer->adjust(attotime::zero, 0, attotime::from_hz(44100));
- }
- else
- {
- m_ext_cas->change_state(CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR);
- m_ext_cas_timer->adjust(attotime::zero);
- }
-}
-
-// input capture register high barcode trigger
-READ8_MEMBER( px4_state::icrhb_r )
-{
- if (VERBOSE)
- logerror("%s: icrhb_r\n", machine().describe_context());
-
- // clear icf interrupt
- m_isr &= ~INT2_ICF;
- gapnit_interrupt();
-
- return (m_icrb >> 8) & 0xff;
-}
-
-// interrupt status register
-READ8_MEMBER( px4_state::isr_r )
-{
- if (VERBOSE)
- logerror("%s: isr_r\n", machine().describe_context());
-
- return m_isr;
-}
-
-// interrupt enable register
-WRITE8_MEMBER( px4_state::ier_w )
-{
- if (0)
- logerror("%s: ier_w (0x%02x)\n", machine().describe_context(), data);
-
- m_ier = data;
- gapnit_interrupt();
-}
-
-// status register
-READ8_MEMBER( px4_state::str_r )
-{
- UINT8 data = 0;
-
- if (0)
- logerror("%s: str_r\n", machine().describe_context());
-
- data |= (m_ext_cas)->input() > 0 ? 1 : 0;
- data |= 1 << 1; // BCRD, barcode reader input
- data |= 1 << 2; // RDY signal from 7805
- data |= 1 << 3; // RDYSIO, enable access to the 7805
- data |= m_bankr & 0xf0; // bit 4-7, BANK - memory bank
-
- return data;
-}
-
-// helper function to map rom capsules
-void px4_state::install_rom_capsule(address_space &space, int size, memory_region *mem)
-{
- // ram, part 1
- space.install_ram(0x0000, 0xdfff - size, 0, 0, m_ram->pointer());
-
- // actual rom data, part 1
- if (mem)
- space.install_rom(0xe000 - size, 0xffff, 0, 0, mem->base() + (size - 0x2000));
-
- // rom data, part 2
- if (mem && size != 0x2000)
- space.install_rom(0x10000 - size, 0xdfff, 0, 0, mem->base());
-
- // ram, continued
- space.install_ram(0xe000, 0xffff, 0, 0, m_ram->pointer() + 0xe000);
-}
-
-// bank register
-WRITE8_MEMBER( px4_state::bankr_w )
-{
- address_space &space_program = m_z80->space(AS_PROGRAM);
-
- if (0)
- logerror("%s: bankr_w (0x%02x)\n", machine().describe_context(), data);
-
- m_bankr = data;
-
- // bank switch
- switch (data >> 4)
- {
- case 0x00:
- // system bank
- space_program.install_rom(0x0000, 0x7fff, 0, 0, memregion("os")->base());
- space_program.install_ram(0x8000, 0xffff, 0, 0, m_ram->pointer() + 0x8000);
- break;
-
- case 0x04:
- // memory
- space_program.install_ram(0x0000, 0xffff, 0, 0, m_ram->pointer());
- break;
-
- case 0x08: install_rom_capsule(space_program, 0x2000, m_caps1_rom); break;
- case 0x09: install_rom_capsule(space_program, 0x4000, m_caps1_rom); break;
- case 0x0a: install_rom_capsule(space_program, 0x8000, m_caps1_rom); break;
- case 0x0c: install_rom_capsule(space_program, 0x2000, m_caps2_rom); break;
- case 0x0d: install_rom_capsule(space_program, 0x4000, m_caps2_rom); break;
- case 0x0e: install_rom_capsule(space_program, 0x8000, m_caps2_rom); break;
-
- default:
- if (VERBOSE)
- logerror("invalid bank switch value: 0x%02x\n", data >> 4);
- break;
- }
-}
-
-// serial io register
-READ8_MEMBER( px4_state::sior_r )
-{
- if (0)
- logerror("%s: sior_r 0x%02x\n", machine().describe_context(), m_sior);
-
- // reading clock?
- if (m_clock_state > 0)
- {
- switch (m_clock_state++)
- {
- case 1: m_sior = (dec_2_bcd(m_time.local_time.year) >> 4) & 0xf; break;
- case 2: m_sior = dec_2_bcd(m_time.local_time.year) & 0xf; break;
- case 3: m_sior = dec_2_bcd(m_time.local_time.month + 1); break;
- case 4: m_sior = dec_2_bcd(m_time.local_time.mday); break;
- case 5: m_sior = dec_2_bcd(m_time.local_time.hour); break;
- case 6: m_sior = dec_2_bcd(m_time.local_time.minute); break;
- case 7: m_sior = dec_2_bcd(m_time.local_time.second); break;
- case 8: m_sior = dec_2_bcd(m_time.local_time.weekday); break;
- }
-
- // done?
- if (m_clock_state == 9)
- m_clock_state = 0;
- }
-
- return m_sior;
-}
-
-// serial io register
-WRITE8_MEMBER( px4_state::sior_w )
-{
- if (0)
- logerror("%s: sior_w (0x%02x)\n", machine().describe_context(), data);
-
- // writing clock?
- if (m_clock_state > 0)
- {
- time_t time = m_time.time;
- struct tm *t = localtime(&time);
-
- switch (m_clock_state++)
- {
- case 1:
- {
- int year = dec_2_bcd(m_time.local_time.year);
- year = (year & 0xff0f) | ((data & 0xf) << 4);
- t->tm_year = bcd_2_dec(year) - 1900;
- }
- break;
- case 2:
- {
- int year = dec_2_bcd(m_time.local_time.year);
- year = (year & 0xfff0) | (data & 0xf);
- t->tm_year = bcd_2_dec(year) - 1900;
- }
- break;
- case 3: t->tm_mon = bcd_2_dec(data & 0x7f) - 1; break;
- case 4: t->tm_mday = bcd_2_dec(data & 0x7f); break;
- case 5: t->tm_hour = bcd_2_dec(data & 0x7f); break;
- case 6: t->tm_min = bcd_2_dec(data & 0x7f); break;
- case 7: t->tm_sec = bcd_2_dec(data & 0x7f); break;
- case 8: t->tm_wday = bcd_2_dec(data & 0x7f); break;
- }
-
- // update
- m_time.set(mktime(t));
-
- // done?
- if (m_clock_state == 9)
- m_clock_state = 0;
- }
- else
- {
- m_sior = data;
-
- switch (data)
- {
- case 0x01:
- if (VERBOSE)
- logerror("7508 cmd: Power OFF\n");
-
- break;
-
- case 0x02:
- if (VERBOSE)
- logerror("7508 cmd: Read Status\n");
-
- if (m_interrupt_status != 0)
- {
- if (VERBOSE)
- logerror("> 7508 has interrupts pending: 0x%02x\n", m_interrupt_status);
-
- // signal the interrupt(s)
- m_sior = 0xc1 | m_interrupt_status;
- m_interrupt_status = 0x00;
- }
- else if (m_key_status != 0xff)
- {
- m_sior = m_key_status;
- m_key_status = 0xff;
- }
- else
- {
- // nothing happened
- m_sior = 0xbf;
- }
-
- break;
-
- case 0x03: if (VERBOSE) logerror("7508 cmd: KB Reset\n"); break;
- case 0x04: if (VERBOSE) logerror("7508 cmd: KB Repeat Timer 1 Set\n"); break;
- case 0x14: if (VERBOSE) logerror("7508 cmd: KB Repeat Timer 2 Set\n"); break;
- case 0x24: if (VERBOSE) logerror("7508 cmd: KB Repeat Timer 1 Read\n"); break;
- case 0x34: if (VERBOSE) logerror("7508 cmd: KB Repeat Timer 2 Read\n"); break;
- case 0x05: if (VERBOSE) logerror("7508 cmd: KB Repeat OFF\n"); break;
- case 0x15: if (VERBOSE) logerror("7508 cmd: KB Repeat ON\n"); break;
-
- case 0x06:
- if (VERBOSE)
- logerror("7508 cmd: KB Interrupt OFF\n");
-
- m_key_int_enabled = false;
- break;
-
- case 0x16:
- if (VERBOSE)
- logerror("7508 cmd: KB Interrupt ON\n");
-
- m_key_int_enabled = true;
- break;
-
- case 0x07:
- if (VERBOSE)
- logerror("7508 cmd: Clock Read\n");
-
- m_clock_state = 1;
- break;
-
- case 0x17:
- if (VERBOSE)
- logerror("7508 cmd: Clock Write\n");
-
- m_clock_state = 1;
- break;
-
- case 0x08:
- if (VERBOSE)
- logerror("7508 cmd: Power Switch Read\n");
-
- // indicate that the power switch is in the "ON" position
- m_sior = 0x01;
- break;
-
- case 0x09: if (VERBOSE) logerror("7508 cmd: Alarm Read\n"); break;
- case 0x19: if (VERBOSE) logerror("7508 cmd: Alarm Set\n"); break;
- case 0x29: if (VERBOSE) logerror("7508 cmd: Alarm OFF\n"); break;
- case 0x39: if (VERBOSE) logerror("7508 cmd: Alarm ON\n"); break;
-
- case 0x0a:
- if (VERBOSE)
- logerror("7508 cmd: DIP Switch Read\n");
- m_sior = ioport("dips")->read();
- break;
-
- case 0x0b: if (VERBOSE) logerror("7508 cmd: Stop Key Interrupt disable\n"); break;
- case 0x1b: if (VERBOSE) logerror("7508 cmd: Stop Key Interrupt enable\n"); break;
- case 0x0c: if (VERBOSE) logerror("7508 cmd: 7 chr. Buffer\n"); break;
- case 0x1c: if (VERBOSE) logerror("7508 cmd: 1 chr. Buffer\n"); break;
-
- case 0x0d:
- if (VERBOSE)
- logerror("7508 cmd: 1 sec. Interrupt OFF\n");
-
- m_one_sec_int_enabled = false;
- break;
-
- case 0x1d:
- if (VERBOSE)
- logerror("7508 cmd: 1 sec. Interrupt ON\n");
-
- m_one_sec_int_enabled = true;
- break;
-
- case 0x0e:
- if (VERBOSE)
- logerror("7508 cmd: KB Clear\n");
-
- m_sior = 0xbf;
- break;
-
- case 0x0f: if (VERBOSE) logerror("7508 cmd: System Reset\n"); break;
- }
- }
-}
-
-
-//**************************************************************************
-// GAPNDL
-//**************************************************************************
-
-// vram start address register
-WRITE8_MEMBER( px4_state::vadr_w )
-{
- if (VERBOSE)
- logerror("%s: vadr_w (0x%02x)\n", machine().describe_context(), data);
-
- m_vadr = data;
-}
-
-// y offset register
-WRITE8_MEMBER( px4_state::yoff_w )
-{
- if (VERBOSE)
- logerror("%s: yoff_w (0x%02x)\n", machine().describe_context(), data);
-
- m_yoff = data;
-}
-
-// frame register
-WRITE8_MEMBER( px4_state::fr_w )
-{
- if (VERBOSE)
- logerror("%s: fr_w (0x%02x)\n", machine().describe_context(), data);
-}
-
-// speed-up register
-WRITE8_MEMBER( px4_state::spur_w )
-{
- if (VERBOSE)
- logerror("%s: spur_w (0x%02x)\n", machine().describe_context(), data);
-}
-
-
-//**************************************************************************
-// GAPNIO
-//**************************************************************************
-
-WRITE_LINE_MEMBER( px4_state::serial_rx_w )
-{
- m_serial_rx = state;
- device_serial_interface::rx_w(state);
-}
-
-WRITE_LINE_MEMBER( px4_state::sio_rx_w )
-{
- if (!BIT(m_swr, 3) && BIT(m_swr, 2))
- serial_rx_w(state);
-}
-
-WRITE_LINE_MEMBER( px4_state::sio_pin_w )
-{
- m_sio_pin = state;
-}
-
-WRITE_LINE_MEMBER( px4_state::rs232_rx_w )
-{
- if (BIT(m_swr, 3))
- serial_rx_w(state);
-}
-
-WRITE_LINE_MEMBER( px4_state::rs232_dcd_w )
-{
- m_rs232_dcd = state;
-}
-
-WRITE_LINE_MEMBER( px4_state::rs232_dsr_w )
-{
- m_artsr |= !state << 7;
-}
-
-WRITE_LINE_MEMBER( px4_state::rs232_cts_w )
-{
- m_rs232_cts = state;
-}
-
-void px4_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- device_serial_interface::device_timer(timer, id, param, ptr);
-}
-
-void px4_state::tra_callback()
-{
- if (ART_TX_ENABLED)
- {
- if (ART_BREAK)
- txd_w(0); // transmit break
- else
- txd_w(transmit_register_get_data_bit()); // transmit data
- }
- else
- txd_w(1); // transmit mark
-}
-
-void px4_state::tra_complete()
-{
- if (m_artsr & ART_TXRDY)
- {
- // no more bytes, buffer now empty
- m_artsr |= ART_TXEMPTY;
- }
- else
- {
- // transfer next byte
- transmit_register_setup(m_artdor);
- m_artsr |= ART_TXRDY;
- }
-}
-
-void px4_state::rcv_callback()
-{
- if (ART_RX_ENABLED)
- receive_register_update_bit(m_serial_rx); // receive data
-}
-
-void px4_state::rcv_complete()
-{
- receive_register_extract();
- m_artdir = get_received_char();
-
- // TODO: verify parity and framing
-
- // overrun?
- if (m_artsr & ART_RXRDY)
- m_artsr |= ART_OE;
-
- // set ready and signal interrupt
- m_artsr |= ART_RXRDY;
- m_isr |= INT1_ART;
- gapnit_interrupt();
-}
-
-// helper function to write to selected serial port
-void px4_state::txd_w(int data)
-{
- if (BIT(m_swr, 2))
- // to sio
- m_sio->tx_w(data);
- else
- if (BIT(m_swr, 3))
- // to rs232
- m_rs232->write_txd(data);
- // else to cartridge
-}
-
-// cartridge interface
-READ8_MEMBER( px4_state::ctgif_r )
-{
- if (VERBOSE)
- logerror("%s: ctgif_r @ 0x%02x\n", machine().describe_context(), offset);
-
- return 0x00;
-}
-
-// cartridge interface
-WRITE8_MEMBER( px4_state::ctgif_w )
-{
- if (VERBOSE)
- logerror("%s: ctgif_w (0x%02x @ 0x%02x)\n", machine().describe_context(), data, offset);
-}
-
-// art data input register
-READ8_MEMBER( px4_state::artdir_r )
-{
- if (VERBOSE)
- logerror("%s: artdir_r (%02x)\n", machine().describe_context(), m_artdir);
-
- // clear ready
- m_artsr &= ~ART_RXRDY;
-
- // clear interrupt
- m_isr &= ~INT1_ART;
- gapnit_interrupt();
-
- return m_artdir;
-}
-
-// art data output register
-WRITE8_MEMBER( px4_state::artdor_w )
-{
- if (VERBOSE)
- logerror("%s: artdor_w (0x%02x)\n", machine().describe_context(), data);
-
- m_artdor = data;
-
- // new data to transmit?
- if (ART_TX_ENABLED && is_transmit_register_empty())
- {
- transmit_register_setup(m_artdor);
- m_artsr &= ~ART_TXEMPTY;
- }
- else
- {
- // clear ready
- m_artsr &= ~ART_TXRDY;
- }
-}
-
-// art status register
-READ8_MEMBER( px4_state::artsr_r )
-{
- if (0)
- logerror("%s: artsr_r (%02x)\n", machine().describe_context(), m_artsr);
-
- return m_artsr;
-}
-
-// art mode register
-WRITE8_MEMBER( px4_state::artmr_w )
-{
- int data_bit_count = BIT(data, 2) ? 8 : 7;
- parity_t parity = BIT(data, 4) ? (BIT(data, 5) ? PARITY_EVEN : PARITY_ODD) : PARITY_NONE;
- stop_bits_t stop_bits = BIT(data, 7) ? STOP_BITS_2 : STOP_BITS_1;
-
- if (VERBOSE)
- logerror("%s: serial frame setup: %d-%s-%d\n", tag(), data_bit_count, device_serial_interface::parity_tostring(parity), stop_bits);
-
- set_data_frame(1, data_bit_count, parity, stop_bits);
-}
-
-// io status register
-READ8_MEMBER( px4_state::iostr_r )
-{
- UINT8 data = 0;
-
- // centronics status
- data |= m_centronics_busy << 0;
- data |= m_centronics_perror << 1;
-
- // sio status
- data |= !m_sio_pin << 2;
-
- // serial data
- data |= m_serial_rx << 3;
-
- // rs232 status
- data |= !m_rs232_dcd << 4;
- data |= !m_rs232_cts << 5;
-
- data |= 1 << 6; // bit 6, csel, cartridge option select signal
- data |= 0 << 7; // bit 7, caud - audio input from cartridge
-
- if (0)
- logerror("%s: iostr_r: rx = %d, dcd = %d, cts = %d\n", machine().describe_context(), BIT(data, 3), BIT(data, 4), BIT(data, 5));
-
- return data;
-}
-
-// art command register
-WRITE8_MEMBER( px4_state::artcr_w )
-{
- if (VERBOSE)
- logerror("%s: artcr_w (0x%02x)\n", machine().describe_context(), data);
-
- m_artcr = data;
-
- // error reset
- if (BIT(data, 4))
- m_artsr &= ~(ART_PE | ART_OE | ART_FE);
-
- // rs232
- m_rs232->write_dtr(!BIT(data, 1));
- m_rs232->write_rts(!BIT(data, 5));
-}
-
-// switch register
-WRITE8_MEMBER( px4_state::swr_w )
-{
- if (VERBOSE)
- {
- const char *cart_mode[] = { "hs", "io", "db", "ot" };
- const char *ser_mode[] = { "cart sio / cart sio", "sio / sio", "rs232 / rs232", "rs232 / sio" };
- logerror("%s: px4_swr_w: cartridge mode: %s, serial mode: %s, audio: %s\n", machine().describe_context(),
- cart_mode[data & 0x03], ser_mode[(data >> 2) & 0x03], BIT(data, 4) ? "on" : "off");
- }
-
- m_swr = data;
-}
-
-// io control register
-WRITE8_MEMBER( px4_state::ioctlr_w )
-{
- if (VERBOSE)
- logerror("%s: ioctlr_w (0x%02x)\n", machine().describe_context(), data);
-
- m_centronics->write_strobe(!BIT(data, 0));
- m_centronics->write_init(BIT(data, 1));
-
- m_sio->pout_w(BIT(data, 2));
-
- // bit 3, cartridge reset
-
- output_set_value("led_0", BIT(data, 4)); // caps lock
- output_set_value("led_1", BIT(data, 5)); // num lock
- output_set_value("led_2", BIT(data, 6)); // "led 2"
-
- m_speaker->level_w(BIT(data, 7));
-}
-
-
-//**************************************************************************
-// 7508 RELATED
-//**************************************************************************
-
-TIMER_DEVICE_CALLBACK_MEMBER( px4_state::upd7508_1sec_callback )
-{
- // adjust interrupt status
- m_interrupt_status |= UPD7508_INT_ONE_SECOND;
-
- // are interrupts enabled?
- if (m_one_sec_int_enabled)
- {
- m_isr |= INT0_7508;
- gapnit_interrupt();
- }
-
- // update clock
- m_time.set(m_time.time + 1);
-}
-
-INPUT_CHANGED_MEMBER( px4_state::key_callback )
-{
- UINT32 oldvalue = oldval * field.mask(), newvalue = newval * field.mask();
- UINT32 delta = oldvalue ^ newvalue;
- int i, scancode = 0xff, down = 0;
-
- for (i = 0; i < 32; i++)
- {
- if (delta & (1 << i))
- {
- down = (newvalue & (1 << i)) ? 0x10 : 0x00;
- scancode = (FPTR)param * 32 + i;
-
- // control keys
- if ((scancode & 0xa0) == 0xa0)
- scancode |= down;
-
- if (VERBOSE)
- logerror("upd7508: key callback, key=0x%02x\n", scancode);
-
- break;
- }
- }
-
- if (down || (scancode & 0xa0) == 0xa0)
- {
- m_key_status = scancode;
-
- if (m_key_int_enabled)
- {
- if (VERBOSE)
- logerror("upd7508: key interrupt\n");
-
- m_isr |= INT0_7508;
- gapnit_interrupt();
- }
- }
-}
-
-
-//**************************************************************************
-// EXTERNAL RAM-DISK
-//**************************************************************************
-
-WRITE8_MEMBER( px4p_state::ramdisk_address_w )
-{
- switch (offset)
- {
- case 0x00: m_ramdisk_address = (m_ramdisk_address & 0xffff00) | ((data & 0xff) << 0); break;
- case 0x01: m_ramdisk_address = (m_ramdisk_address & 0xff00ff) | ((data & 0xff) << 8); break;
- case 0x02: m_ramdisk_address = (m_ramdisk_address & 0x00ffff) | ((data & 0x07) << 16); break;
- }
-}
-
-READ8_MEMBER( px4p_state::ramdisk_data_r )
-{
- UINT8 ret = 0xff;
-
- if (m_ramdisk_address < 0x20000)
- {
- // read from ram
- ret = m_ramdisk[m_ramdisk_address];
- }
- else if (m_ramdisk_address < 0x40000)
- {
- // read from rom
- ret = m_rdsocket->read_rom(space, m_ramdisk_address);
- }
-
- m_ramdisk_address = (m_ramdisk_address & 0xffff00) | ((m_ramdisk_address & 0xff) + 1);
-
- return ret;
-}
-
-WRITE8_MEMBER( px4p_state::ramdisk_data_w )
-{
- if (m_ramdisk_address < 0x20000)
- m_ramdisk[m_ramdisk_address] = data;
-
- m_ramdisk_address = (m_ramdisk_address & 0xffff00) | ((m_ramdisk_address & 0xff) + 1);
-}
-
-READ8_MEMBER( px4p_state::ramdisk_control_r )
-{
- // bit 7 determines the presence of a ram-disk
- return 0x7f;
-}
-
-//**************************************************************************
-// VIDEO EMULATION
-//**************************************************************************
-
-UINT32 px4_state::screen_update_px4(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- // display enabled?
- if (BIT(m_yoff, 7))
- {
- int y, x;
-
- // get vram start address
- UINT8 *vram = &m_ram->pointer()[(m_vadr & 0xf8) << 8];
-
- for (y = 0; y < 64; y++)
- {
- // adjust against y-offset
- UINT8 row = (y - (m_yoff & 0x3f)) & 0x3f;
-
- for (x = 0; x < 240/8; x++)
- {
- bitmap.pix16(row, x * 8 + 0) = BIT(*vram, 7);
- bitmap.pix16(row, x * 8 + 1) = BIT(*vram, 6);
- bitmap.pix16(row, x * 8 + 2) = BIT(*vram, 5);
- bitmap.pix16(row, x * 8 + 3) = BIT(*vram, 4);
- bitmap.pix16(row, x * 8 + 4) = BIT(*vram, 3);
- bitmap.pix16(row, x * 8 + 5) = BIT(*vram, 2);
- bitmap.pix16(row, x * 8 + 6) = BIT(*vram, 1);
- bitmap.pix16(row, x * 8 + 7) = BIT(*vram, 0);
-
- vram++;
- }
-
- // skip the last 2 unused bytes
- vram += 2;
- }
- }
- else
- {
- // display is disabled, draw an empty screen
- bitmap.fill(0, cliprect);
- }
-
- return 0;
-}
-
-
-//**************************************************************************
-// DRIVER INIT
-//**************************************************************************
-
-DRIVER_INIT_MEMBER( px4_state, px4 )
-{
- // map os rom and last half of memory
- membank("bank1")->set_base(memregion("os")->base());
- membank("bank2")->set_base(m_ram->pointer() + 0x8000);
-}
-
-DRIVER_INIT_MEMBER( px4p_state, px4p )
-{
- DRIVER_INIT_CALL(px4);
-
- // reserve memory for external ram-disk
- m_ramdisk = auto_alloc_array(machine(), UINT8, 0x20000);
-}
-
-void px4_state::machine_start()
-{
- std::string region_tag;
- m_caps1_rom = memregion(region_tag.assign(m_caps1->tag()).append(GENERIC_ROM_REGION_TAG).c_str());
- m_caps2_rom = memregion(region_tag.assign(m_caps2->tag()).append(GENERIC_ROM_REGION_TAG).c_str());
-
- m_nvram->set_base(m_ram->pointer(), 0x10000);
-
- // initialize clock
- machine().base_datetime(m_time);
-}
-
-void px4_state::machine_reset()
-{
- m_artsr = ART_TXRDY | ART_TXEMPTY | (!m_rs232->dsr_r() << 7);
- receive_register_reset();
- transmit_register_reset();
-}
-
-void px4p_state::machine_start()
-{
- px4_state::machine_start();
- m_rdnvram->set_base(m_ramdisk, 0x20000);
-}
-
-
-//**************************************************************************
-// ADDRESS MAPS
-//**************************************************************************
-
-static ADDRESS_MAP_START( px4_mem, AS_PROGRAM, 8, px4_state )
- AM_RANGE(0x0000, 0x7fff) AM_ROMBANK("bank1")
- AM_RANGE(0x8000, 0xffff) AM_RAMBANK("bank2")
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( px4_io, AS_IO, 8, px4_state )
- ADDRESS_MAP_UNMAP_HIGH
- ADDRESS_MAP_GLOBAL_MASK(0xff)
- // gapnit, 0x00-0x07
- AM_RANGE(0x00, 0x00) AM_READWRITE( icrlc_r, ctrl1_w )
- AM_RANGE(0x01, 0x01) AM_READWRITE( icrhc_r, cmdr_w )
- AM_RANGE(0x02, 0x02) AM_READWRITE( icrlb_r, ctrl2_w )
- AM_RANGE(0x03, 0x03) AM_READ( icrhb_r )
- AM_RANGE(0x04, 0x04) AM_READWRITE( isr_r, ier_w )
- AM_RANGE(0x05, 0x05) AM_READWRITE( str_r, bankr_w )
- AM_RANGE(0x06, 0x06) AM_READWRITE( sior_r, sior_w )
- AM_RANGE(0x07, 0x07) AM_NOP
- // gapndl, 0x08-0x0f
- AM_RANGE(0x08, 0x08) AM_WRITE( vadr_w )
- AM_RANGE(0x09, 0x09) AM_WRITE( yoff_w )
- AM_RANGE(0x0a, 0x0a) AM_WRITE( fr_w )
- AM_RANGE(0x0b, 0x0b) AM_WRITE( spur_w )
- AM_RANGE(0x0c, 0x0f) AM_NOP
- // gapnio, 0x10-0x1f
- AM_RANGE(0x10, 0x13) AM_READWRITE( ctgif_r, ctgif_w )
- AM_RANGE(0x14, 0x14) AM_READWRITE( artdir_r, artdor_w )
- AM_RANGE(0x15, 0x15) AM_READWRITE( artsr_r, artmr_w )
- AM_RANGE(0x16, 0x16) AM_READWRITE( iostr_r, artcr_w )
- AM_RANGE(0x17, 0x17) AM_DEVWRITE("cent_data_out", output_latch_device, write)
- AM_RANGE(0x18, 0x18) AM_WRITE( swr_w )
- AM_RANGE(0x19, 0x19) AM_WRITE( ioctlr_w )
- AM_RANGE(0x1a, 0x1f) AM_NOP
-ADDRESS_MAP_END
-
-static ADDRESS_MAP_START( px4p_io, AS_IO, 8, px4p_state )
- AM_IMPORT_FROM(px4_io)
- AM_RANGE(0x90, 0x92) AM_WRITE(ramdisk_address_w )
- AM_RANGE(0x93, 0x93) AM_READWRITE(ramdisk_data_r, ramdisk_data_w )
- AM_RANGE(0x94, 0x94) AM_READ(ramdisk_control_r)
-ADDRESS_MAP_END
-
-
-//**************************************************************************
-// INPUT PORTS
-//**************************************************************************
-
-/* The PX-4 has an exchangeable keyboard. Available is a standard ASCII
- * keyboard and an "item" keyboard, as well as regional variants for
- * UK, France, Germany, Denmark, Sweden, Norway, Italy and Spain.
- */
-
-// configuration dip switch found on the rom capsule board
-static INPUT_PORTS_START( px4_dips )
- PORT_START("dips")
-
- PORT_DIPNAME(0x0f, 0x0f, "Character set")
- PORT_DIPLOCATION("PX-4:8,7,6,5")
- PORT_DIPSETTING(0x0f, "ASCII")
- PORT_DIPSETTING(0x0e, "France")
- PORT_DIPSETTING(0x0d, "Germany")
- PORT_DIPSETTING(0x0c, "England")
- PORT_DIPSETTING(0x0b, "Denmark")
- PORT_DIPSETTING(0x0a, "Sweden")
- PORT_DIPSETTING(0x09, "Italy")
- PORT_DIPSETTING(0x08, "Spain")
- PORT_DIPSETTING(0x07, DEF_STR(Japan))
- PORT_DIPSETTING(0x06, "Norway")
-
- PORT_DIPNAME(0x30, 0x30, "LST device")
- PORT_DIPLOCATION("PX-4:4,3")
- PORT_DIPSETTING(0x00, "SIO")
- PORT_DIPSETTING(0x10, "Cartridge printer")
- PORT_DIPSETTING(0x20, "RS-232C")
- PORT_DIPSETTING(0x30, "Centronics printer")
-
- // available for user applications
- PORT_DIPNAME(0x40, 0x40, "Not used")
- PORT_DIPLOCATION("PX-4:2")
- PORT_DIPSETTING(0x40, "Enable")
- PORT_DIPSETTING(0x00, "Disable")
-
- // this is automatically selected by the os, the switch has no effect
- PORT_DIPNAME(0x80, 0x00, "Keyboard type")
- PORT_DIPLOCATION("PX-4:1")
- PORT_DIPSETTING(0x80, "Item keyboard")
- PORT_DIPSETTING(0x00, "Standard keyboard")
-INPUT_PORTS_END
-
-// US ASCII keyboard
-static INPUT_PORTS_START( px4_h450a )
- PORT_INCLUDE(px4_dips)
-
- PORT_START("keyboard_0")
- PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(ESC)) // 00
- PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) // 01
- PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_NAME("Help") // 02
- PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_NAME("PF1") // 03
- PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_NAME("PF2") // 04
- PORT_BIT(0x00000020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_NAME("PF3") // 05
- PORT_BIT(0x00000040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_NAME("PF4") // 06
- PORT_BIT(0x00000080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_NAME("PF5") // 07
- PORT_BIT(0x0000ff00, IP_ACTIVE_HIGH, IPT_UNUSED) // 08-0f
- PORT_BIT(0x00010000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(CANCEL)) PORT_NAME("Stop") // 10
- PORT_BIT(0x00020000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 11
- PORT_BIT(0x00040000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') // 12
- PORT_BIT(0x00080000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 13
- PORT_BIT(0x00100000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 14
- PORT_BIT(0x00200000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 15
- PORT_BIT(0x00400000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') // 16
- PORT_BIT(0x00800000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)0) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') // 17
- PORT_BIT(0xff000000, IP_ACTIVE_HIGH, IPT_UNUSED) // 18-1f
-
- PORT_START("keyboard_1")
- PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 20
- PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 21
- PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 22
- PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 23
- PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 24
- PORT_BIT(0x00000020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 25
- PORT_BIT(0x00000040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 26
- PORT_BIT(0x00000080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 27
- PORT_BIT(0x0000ff00, IP_ACTIVE_HIGH, IPT_UNUSED) // 28-2f
- PORT_BIT(0x00010000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') // 30
- PORT_BIT(0x00020000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 31
- PORT_BIT(0x00040000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 32
- PORT_BIT(0x00080000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 33
- PORT_BIT(0x00100000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') // 34
- PORT_BIT(0x00200000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 35
- PORT_BIT(0x00400000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 36
- PORT_BIT(0x00800000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)1) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') // 37
- PORT_BIT(0xff000000, IP_ACTIVE_HIGH, IPT_UNUSED) // 38-3f
-
- PORT_START("keyboard_2")
- PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 40
- PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 41
- PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 42
- PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') // 43
- PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') // 44
- PORT_BIT(0x00000020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') // 45
- PORT_BIT(0x00000040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_F9) PORT_CHAR('[') PORT_CHAR('{') // 46
- PORT_BIT(0x00000080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_F10) PORT_CHAR(']') PORT_CHAR('}') // 47
- PORT_BIT(0x0000ff00, IP_ACTIVE_HIGH, IPT_UNUSED) // 48-4f
- PORT_BIT(0x00010000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') // 50
- PORT_BIT(0x00020000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') // 51
- PORT_BIT(0x00040000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('_') // 52
- PORT_BIT(0x00080000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') // 53
- PORT_BIT(0x00100000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~') // 54
- PORT_BIT(0x00200000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) // 55
- PORT_BIT(0x00400000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(UCHAR_MAMEKEY(HOME)) // 56
- PORT_BIT(0x00800000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)2) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') // 57
- PORT_BIT(0xff000000, IP_ACTIVE_HIGH, IPT_UNUSED) // 58-5f
-
- PORT_START("keyboard_3")
- PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 60
- PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') // 61
- PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR(96) // 62
- PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) // 63
- PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) // 64
- PORT_BIT(0x00000020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) // 65
- PORT_BIT(0x00000040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 66
- PORT_BIT(0x00000080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 67
- PORT_BIT(0x0000ff00, IP_ACTIVE_HIGH, IPT_UNUSED) // 48-4f
- PORT_BIT(0x00010000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') // 70
- PORT_BIT(0x00020000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) // 71
- PORT_BIT(0x00040000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') // 72
- PORT_BIT(0x00080000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 73
- PORT_BIT(0x00100000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 74
- PORT_BIT(0x00200000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') // 75
- PORT_BIT(0x00400000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') // 76
- PORT_BIT(0x00800000, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)3) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 77
- PORT_BIT(0xff000000, IP_ACTIVE_HIGH, IPT_UNUSED) // 58-5f
-
- PORT_START("keyboard_4")
- PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)4) PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) // 80
- PORT_BIT(0x00000002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)4) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_CHAR(12) // 81
- PORT_BIT(0xfffffffc, IP_ACTIVE_HIGH, IPT_UNUSED) // 82-9f
-
- PORT_START("keyboard_5")
- PORT_BIT(0x00000003, IP_ACTIVE_HIGH, IPT_UNUSED) // a0-a1
- PORT_BIT(0x00000004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) // a2
- PORT_BIT(0x00000008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // a3
- PORT_BIT(0x00000010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // a4
- PORT_BIT(0x00000020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_RALT) PORT_NAME("Graph") // a5
- PORT_BIT(0x00000040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // a6
- PORT_BIT(0x00000080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CHANGED_MEMBER(DEVICE_SELF, px4_state, key_callback, (void *)5) PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) // a7
- PORT_BIT(0xffffff00, IP_ACTIVE_HIGH, IPT_UNUSED) // a8-bf /* b2-b7 are the 'make' codes for the above keys */
-INPUT_PORTS_END
-
-#if 0
-
-/* item keyboard */
-static INPUT_PORTS_START( px4_h421a )
- PORT_INCLUDE(px4_dips)
-INPUT_PORTS_END
-
-#endif
-
-//**************************************************************************
-// PALETTE
-//**************************************************************************
-
-PALETTE_INIT_MEMBER( px4_state, px4 )
-{
- palette.set_pen_color(0, rgb_t(138, 146, 148));
- palette.set_pen_color(1, rgb_t(92, 83, 88));
-}
-
-PALETTE_INIT_MEMBER( px4p_state, px4p )
-{
- palette.set_pen_color(0, rgb_t(149, 157, 130));
- palette.set_pen_color(1, rgb_t(92, 83, 88));
-}
-
-
-//**************************************************************************
-// MACHINE DRIVERS
-//**************************************************************************
-
-static MACHINE_CONFIG_START( px4, px4_state )
- // basic machine hardware
- MCFG_CPU_ADD("maincpu", Z80, XTAL_7_3728MHz / 2) // uPD70008
- MCFG_CPU_PROGRAM_MAP(px4_mem)
- MCFG_CPU_IO_MAP(px4_io)
-
- // video hardware
- MCFG_SCREEN_ADD("screen", LCD)
- MCFG_SCREEN_REFRESH_RATE(72)
- MCFG_SCREEN_SIZE(240, 64)
- MCFG_SCREEN_VISIBLE_AREA(0, 239, 0, 63)
- MCFG_SCREEN_UPDATE_DRIVER(px4_state, screen_update_px4)
- MCFG_SCREEN_PALETTE("palette")
-
- MCFG_DEFAULT_LAYOUT(layout_px4)
-
- MCFG_PALETTE_ADD("palette", 2)
- MCFG_PALETTE_INIT_OWNER(px4_state, px4)
-
- // sound hardware
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
-
- MCFG_TIMER_DRIVER_ADD_PERIODIC("one_sec", px4_state, upd7508_1sec_callback, attotime::from_seconds(1))
- MCFG_TIMER_DRIVER_ADD_PERIODIC("frc", px4_state, frc_tick, attotime::from_hz(XTAL_7_3728MHz / 2 / 6))
-
- // internal ram
- MCFG_RAM_ADD(RAM_TAG)
- MCFG_RAM_DEFAULT_SIZE("64k")
- MCFG_NVRAM_ADD_NO_FILL("nvram")
-
- // centronics printer
- MCFG_CENTRONICS_ADD("centronics", centronics_devices, "printer")
- MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(px4_state, centronics_busy_w))
- MCFG_CENTRONICS_PERROR_HANDLER(WRITELINE(px4_state, centronics_perror_w))
-
- MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
-
- // external cassette
- MCFG_CASSETTE_ADD("extcas")
- MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_DISABLED)
-
- MCFG_TIMER_DRIVER_ADD("extcas_timer", px4_state, ext_cassette_read)
-
- // sio port
- MCFG_EPSON_SIO_ADD("sio", NULL)
- MCFG_EPSON_SIO_RX(WRITELINE(px4_state, sio_rx_w))
- MCFG_EPSON_SIO_PIN(WRITELINE(px4_state, sio_pin_w))
-
- // rs232 port
- MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, NULL)
- MCFG_RS232_RXD_HANDLER(WRITELINE(px4_state, rs232_rx_w))
- MCFG_RS232_DCD_HANDLER(WRITELINE(px4_state, rs232_dcd_w))
- MCFG_RS232_DSR_HANDLER(WRITELINE(px4_state, rs232_dsr_w))
- MCFG_RS232_CTS_HANDLER(WRITELINE(px4_state, rs232_cts_w))
-
- // rom capsules
- MCFG_GENERIC_CARTSLOT_ADD("capsule1", generic_plain_slot, "px4_cart")
- MCFG_GENERIC_CARTSLOT_ADD("capsule2", generic_plain_slot, "px4_cart")
-
- // software list
- MCFG_SOFTWARE_LIST_ADD("cart_list", "px4_cart")
- MCFG_SOFTWARE_LIST_ADD("epson_cpm_list", "epson_cpm")
-MACHINE_CONFIG_END
-
-static MACHINE_CONFIG_DERIVED_CLASS( px4p, px4, px4p_state )
- MCFG_CPU_MODIFY("maincpu")
- MCFG_CPU_IO_MAP(px4p_io)
-
- MCFG_NVRAM_ADD_0FILL("rdnvram")
-
- MCFG_PALETTE_MODIFY("palette")
- MCFG_PALETTE_INIT_OWNER(px4p_state, px4p)
-
- MCFG_GENERIC_CARTSLOT_ADD("ramdisk_socket", generic_plain_slot, "px4_cart")
-MACHINE_CONFIG_END
-
-
-//**************************************************************************
-// ROM DEFINITIONS
-//**************************************************************************
-
-// Note: We are missing "Kana OS V1.0" and "Kana OS V2.0" (Japanese version)
-
-ROM_START( px4 )
- ROM_REGION(0x8000, "os", 0)
- ROM_SYSTEM_BIOS(0, "default", "PX-4 OS ROM")
- ROMX_LOAD("m25122aa_po_px4.10c", 0x0000, 0x8000, CRC(62d60dc6) SHA1(3d32ec79a317de7c84c378302e95f48d56505502), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(1, "ramtest", "PX-4/PX-8 DRAM Test Ver. 1.0")
- ROMX_LOAD("ramtest.10c", 0x0000, 0x8000, CRC(f8aced5f) SHA1(a5a2f398e602aa349c3636d6659dd0c7eaba07fb), ROM_BIOS(2))
-
- ROM_REGION(0x1000, "slave", 0)
- ROM_LOAD("upd7508.bin", 0x0000, 0x1000, NO_DUMP)
-ROM_END
-
-ROM_START( px4p )
- ROM_REGION(0x8000, "os", 0)
- ROM_SYSTEM_BIOS(0, "default", "PX-4+ OS ROM")
- ROMX_LOAD("b0_pxa.10c", 0x0000, 0x8000, CRC(d74b9ef5) SHA1(baceee076c12f5a16f7a26000e9bc395d021c455), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(1, "ramtest", "PX-4/PX-8 DRAM Test Ver. 1.0")
- ROMX_LOAD("ramtest.10c", 0x0000, 0x8000, CRC(f8aced5f) SHA1(a5a2f398e602aa349c3636d6659dd0c7eaba07fb), ROM_BIOS(2))
-
- ROM_REGION(0x1000, "slave", 0)
- ROM_LOAD("upd7508.bin", 0x0000, 0x1000, NO_DUMP)
-ROM_END
-
-
-//**************************************************************************
-// GAME DRIVERS
-//**************************************************************************
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1985, px4, 0, 0, px4, px4_h450a, px4_state, px4, "Epson", "PX-4", 0 )
-COMP( 1985, px4p, px4, 0, px4p, px4_h450a, px4p_state, px4p, "Epson", "PX-4+", 0 )