// license: GPL-2.0+ // copyright-holders: Kevin Thacker, Dirk Best, Phill Harvey-Smith, Nigel Barnes // thanks-to: Chris Coxall, Andrew Dunipace /****************************************************************************** Tatung Einstein TODO: Einstein 256 - interrupt priorities - VAMP interface (probably never used) ******************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/z80daisy.h" #include "machine/z80daisy_generic.h" #include "bus/centronics/ctronics.h" #include "bus/einstein/pipe/pipe.h" #include "bus/einstein/userport/userport.h" #include "bus/rs232/rs232.h" #include "imagedev/cassette.h" #include "imagedev/floppy.h" #include "machine/adc0844.h" #include "machine/i8251.h" #include "machine/ram.h" #include "machine/rescap.h" #include "machine/timer.h" #include "machine/wd_fdc.h" #include "machine/z80ctc.h" #include "machine/z80pio.h" #include "video/tms9928a.h" #include "video/v9938.h" #include "sound/ay8910.h" #include "screen.h" #include "softlist.h" #include "speaker.h" /*************************************************************************** CONSTANTS ***************************************************************************/ #define VERBOSE_KEYBOARD 0 #define VERBOSE_DISK 0 #define XTAL_X001 10.738635_MHz_XTAL #define XTAL_X002 8_MHz_XTAL #define IC_I001 "i001" /* Z8400A */ #define IC_I030 "i030" /* AY-3-8910 */ #define IC_I038 "i038" /* TMM9129 */ #define IC_I042 "i042" /* WD1770-PH */ #define IC_I050 "i050" /* ADC0844CCN */ #define IC_I058 "i058" /* Z8430A */ #define IC_I060 "i060" /* uPD8251A */ #define IC_I063 "i063" /* Z8420A */ /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ class einstein_state : public driver_device { public: einstein_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, IC_I001), m_keyboard_daisy(*this, "keyboard_daisy"), m_adc_daisy(*this, "adc_daisy"), m_fire_daisy(*this, "fire_daisy"), m_vdp_daisy(*this, "vdp_daisy"), m_pipe(*this, "pipe"), m_fdc(*this, IC_I042), m_ram(*this, RAM_TAG), m_psg(*this, IC_I030), m_centronics(*this, "centronics"), m_strobe_timer(*this, "strobe"), m_bios(*this, "bios"), m_bank1(*this, "bank1"), m_bank2(*this, "bank2"), m_bank3(*this, "bank3"), m_floppy(*this, IC_I042 ":%u", 0), m_cassette(*this, "cassette"), m_line(*this, "LINE%u", 0), m_extra(*this, "EXTRA"), m_buttons(*this, "BUTTONS"), m_porta_joy(*this, "PORTA_JOY"), m_portb_joy(*this, "PORTB_JOY"), m_dips(*this, "DIPS"), m_rom_enabled(0), m_keyboard_line(0), m_keyboard_data(0xff), m_centronics_ack(0), m_centronics_busy(0), m_centronics_perror(0), m_centronics_fault(0), m_strobe(-1), m_int(0) {} void einstein(machine_config &config); void einst256(machine_config &config); DECLARE_INPUT_CHANGED_MEMBER(joystick_button); private: TIMER_DEVICE_CALLBACK_MEMBER(keyboard_timer_callback); DECLARE_WRITE8_MEMBER(keyboard_line_write); DECLARE_READ8_MEMBER(keyboard_data_read); DECLARE_READ8_MEMBER(reset_r); DECLARE_WRITE8_MEMBER(reset_w); DECLARE_READ8_MEMBER(rom_r); DECLARE_WRITE8_MEMBER(rom_w); template DECLARE_WRITE_LINE_MEMBER(int_w); DECLARE_READ8_MEMBER(kybint_msk_r); DECLARE_WRITE8_MEMBER(kybint_msk_w); DECLARE_WRITE8_MEMBER(adcint_msk_w); DECLARE_WRITE8_MEMBER(fireint_msk_w); DECLARE_WRITE8_MEMBER(evdpint_msk_w); DECLARE_WRITE8_MEMBER(drsel_w); DECLARE_WRITE_LINE_MEMBER(write_centronics_ack); DECLARE_WRITE_LINE_MEMBER(write_centronics_busy); DECLARE_WRITE_LINE_MEMBER(write_centronics_perror); DECLARE_WRITE_LINE_MEMBER(write_centronics_fault); DECLARE_WRITE_LINE_MEMBER(ardy_w); TIMER_DEVICE_CALLBACK_MEMBER(strobe_callback); DECLARE_READ8_MEMBER(system_r); DECLARE_READ8_MEMBER(porta_r); DECLARE_WRITE8_MEMBER(porta_w); DECLARE_WRITE8_MEMBER(porta_int_w); DECLARE_READ8_MEMBER(portb_r); DECLARE_WRITE8_MEMBER(portb_w); DECLARE_READ8_MEMBER(pseudo_adc_r); DECLARE_WRITE8_MEMBER(pseudo_adc_w); DECLARE_READ8_MEMBER(alpha_lock_r); DECLARE_WRITE8_MEMBER(alpha_lock_w); void einstein_io(address_map &map); void einstein_mem(address_map &map); void einst256_io(address_map &map); virtual void machine_start() override; virtual void machine_reset() override; void einstein_scan_keyboard(); required_device m_maincpu; required_device m_keyboard_daisy; required_device m_adc_daisy; required_device m_fire_daisy; optional_device m_vdp_daisy; optional_device m_pipe; required_device m_fdc; required_device m_ram; required_device m_psg; required_device m_centronics; required_device m_strobe_timer; required_memory_region m_bios; required_memory_bank m_bank1; required_memory_bank m_bank2; required_memory_bank m_bank3; optional_device_array m_floppy; optional_device m_cassette; required_ioport_array<8> m_line; required_ioport m_extra; optional_ioport m_buttons; optional_ioport m_porta_joy; optional_ioport m_portb_joy; optional_ioport m_dips; int m_rom_enabled; uint8_t m_keyboard_line; uint8_t m_keyboard_data; uint8_t m_porta_int; uint8_t m_pseudo_adc; int m_centronics_ack; int m_centronics_busy; int m_centronics_perror; int m_centronics_fault; int m_strobe; int m_alpha_lock_led; int m_int; }; /*************************************************************************** KEYBOARD ***************************************************************************/ INPUT_CHANGED_MEMBER( einstein_state::joystick_button ) { int button_down; if (m_buttons) button_down = (m_buttons->read() & 0x03) != 0x03; else button_down = (m_porta_joy->read() & m_portb_joy->read() & 0x10) != 0x10; m_fire_daisy->int_w(button_down ? ASSERT_LINE : CLEAR_LINE); } /* refresh keyboard data. It is refreshed when the keyboard line is written */ void einstein_state::einstein_scan_keyboard() { uint8_t data = 0xff; if (!BIT(m_keyboard_line, 0)) data &= m_line[0]->read(); if (!BIT(m_keyboard_line, 1)) data &= m_line[1]->read(); if (!BIT(m_keyboard_line, 2)) data &= m_line[2]->read(); if (!BIT(m_keyboard_line, 3)) data &= m_line[3]->read(); if (!BIT(m_keyboard_line, 4)) data &= m_line[4]->read(); if (!BIT(m_keyboard_line, 5)) data &= m_line[5]->read(); if (!BIT(m_keyboard_line, 6)) data &= m_line[6]->read(); if (!BIT(m_keyboard_line, 7)) data &= m_line[7]->read(); m_keyboard_data = data; } TIMER_DEVICE_CALLBACK_MEMBER( einstein_state::keyboard_timer_callback ) { /* re-scan keyboard */ einstein_scan_keyboard(); if (m_keyboard_data != 0xff) m_keyboard_daisy->int_w(ASSERT_LINE); } WRITE8_MEMBER( einstein_state::keyboard_line_write ) { if (VERBOSE_KEYBOARD) logerror("einstein_keyboard_line_write: %02x\n", data); m_keyboard_line = data; /* re-scan the keyboard */ einstein_scan_keyboard(); } READ8_MEMBER( einstein_state::keyboard_data_read ) { /* re-scan the keyboard */ einstein_scan_keyboard(); if (VERBOSE_KEYBOARD) logerror("einstein_keyboard_data_read: %02x\n", m_keyboard_data); return m_keyboard_data; } /*************************************************************************** FLOPPY DRIVES ***************************************************************************/ WRITE8_MEMBER(einstein_state::drsel_w) { if (VERBOSE_DISK) logerror("%s: drsel_w %02x\n", machine().describe_context(), data); floppy_image_device *floppy = nullptr; if (BIT(data, 0)) floppy = m_floppy[0] ? m_floppy[0]->get_device() : nullptr; if (BIT(data, 1)) floppy = m_floppy[1] ? m_floppy[1]->get_device() : nullptr; if (BIT(data, 2)) floppy = m_floppy[2] ? m_floppy[2]->get_device() : nullptr; if (BIT(data, 3)) floppy = m_floppy[3] ? m_floppy[3]->get_device() : nullptr; if (floppy) floppy->ss_w(BIT(data, 4)); m_fdc->set_floppy(floppy); } /*************************************************************************** CENTRONICS ***************************************************************************/ WRITE_LINE_MEMBER(einstein_state::write_centronics_ack) { m_centronics_ack = state; } WRITE_LINE_MEMBER( einstein_state::write_centronics_busy ) { m_centronics_busy = state; } WRITE_LINE_MEMBER( einstein_state::write_centronics_perror ) { m_centronics_perror = state; } WRITE_LINE_MEMBER( einstein_state::write_centronics_fault ) { m_centronics_fault = state; } WRITE_LINE_MEMBER( einstein_state::ardy_w ) { if (m_strobe == 0 && state == 1) { m_centronics->write_strobe(1); m_strobe_timer->adjust(attotime::from_double(TIME_OF_74LS123(RES_K(10), CAP_N(1)))); } m_strobe = state; } TIMER_DEVICE_CALLBACK_MEMBER( einstein_state::strobe_callback ) { m_centronics->write_strobe(0); } /*************************************************************************** INTERRUPTS ***************************************************************************/ static const z80_daisy_config einstein_daisy_chain[] = { { "keyboard_daisy" }, { IC_I058 }, { "adc_daisy" }, { IC_I063 }, { "fire_daisy" }, { nullptr } }; static const z80_daisy_config einst256_daisy_chain[] = { { "keyboard_daisy" }, { IC_I058 }, { "adc_daisy" }, { "vdp_daisy" }, { "fire_daisy" }, { nullptr } }; template WRITE_LINE_MEMBER( einstein_state::int_w ) { int old = m_int; if (state) { m_int |= (1 << src); if (!old) { m_maincpu->set_input_line(INPUT_LINE_IRQ0, ASSERT_LINE); if (m_pipe) m_pipe->host_int_w(ASSERT_LINE); } } else { m_int &= ~(1 << src); if (old && !m_int) { m_maincpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE); if (m_pipe) m_pipe->host_int_w(CLEAR_LINE); } } } READ8_MEMBER( einstein_state::kybint_msk_r ) { uint8_t data = 0; // reading this port clears the keyboard interrupt m_keyboard_daisy->int_w(CLEAR_LINE); /* bit 0 and 1: fire buttons on the joysticks */ if (m_buttons) data |= m_buttons->read() & 0x03; else data |= (m_portb_joy->read() & 0x10) >> 4 | (m_porta_joy->read() & 0x10) >> 3; /* bit 2 to 4: printer status */ data |= m_centronics_busy << 2; data |= m_centronics_perror << 3; data |= m_centronics_fault << 4; /* bit 5 to 7: graph, control and shift key */ data |= m_extra->read(); if(VERBOSE_KEYBOARD) logerror("%s: kybint_msk_r %02x\n", machine().describe_context(), data); return data; } WRITE8_MEMBER( einstein_state::kybint_msk_w ) { logerror("KEY interrupt %s\n", BIT(data, 0) ? "disabled" : "enabled"); m_keyboard_daisy->mask_w(BIT(data, 0)); } WRITE8_MEMBER( einstein_state::adcint_msk_w ) { logerror("ADC interrupt %s\n", BIT(data, 0) ? "disabled" : "enabled"); m_adc_daisy->mask_w(BIT(data, 0)); } WRITE8_MEMBER( einstein_state::fireint_msk_w ) { logerror("FIRE interrupt %s\n", BIT(data, 0) ? "disabled" : "enabled"); m_fire_daisy->mask_w(BIT(data, 0)); } WRITE8_MEMBER(einstein_state::evdpint_msk_w) { logerror("EVDP interrupt %s\n", BIT(data, 0) ? "disabled" : "enabled"); logerror("Printer STROBE %s\n", BIT(data, 1) ? "disabled" : "enabled"); m_vdp_daisy->mask_w(BIT(data, 0)); } /*************************************************************************** MACHINE EMULATION ***************************************************************************/ READ8_MEMBER( einstein_state::rom_r ) { if (!machine().side_effects_disabled()) { m_rom_enabled ^= 1; m_bank1->set_entry(m_rom_enabled); } return 0xff; } WRITE8_MEMBER( einstein_state::rom_w ) { m_rom_enabled ^= 1; m_bank1->set_entry(m_rom_enabled); } READ8_MEMBER( einstein_state::reset_r ) { m_psg->reset(); m_fdc->reset(); return 0xff; } WRITE8_MEMBER( einstein_state::reset_w ) { m_psg->reset(); m_fdc->reset(); } void einstein_state::machine_start() { // initialize memory mapping m_bank1->configure_entry(0, m_ram->pointer()); m_bank1->configure_entry(1, m_bios->base()); m_bank2->set_base(m_ram->pointer()); m_bank3->set_base(m_ram->pointer() + 0x8000); } void einstein_state::machine_reset() { // rom enabled on reset m_rom_enabled = 1; m_bank1->set_entry(m_rom_enabled); // interrupt mask enabled m_keyboard_daisy->mask_w(1); m_adc_daisy->mask_w(1); m_fire_daisy->mask_w(1); m_strobe = -1; // enable Alpha Lock LED m_alpha_lock_led = 1; } /*************************************************************************** 256 MACHINE EMULATION ***************************************************************************/ READ8_MEMBER(einstein_state::system_r) { uint8_t data = 0; // b0 1 = Alpha Lock key pressed data |= !BIT(m_line[0]->read(), 4); // b1 1 = ROM enabled data |= m_rom_enabled << 1; // b2 Dipswitch 1 // b3 Dipswitch 2 // b4 Dipswitch 3 // b5 Dipswitch 4 data |= (m_dips->read() & 0x0f) << 2; // b6 0 = mouse connected data |= 0x40; // b7 cassette input data |= (m_cassette->input() > 0.0 ? 1 : 0) << 7; return data; } READ8_MEMBER(einstein_state::porta_r) { uint8_t data = 0; data |= m_porta_joy->read() & 0x1f; data |= m_centronics_perror << 5; data |= m_centronics_fault << 6; return data; } WRITE8_MEMBER(einstein_state::porta_w) { m_centronics->write_data0(BIT(data, 0)); m_centronics->write_data1(BIT(data, 1)); m_centronics->write_data2(BIT(data, 2)); m_centronics->write_data3(BIT(data, 3)); m_centronics->write_strobe(BIT(data, 4)); } WRITE8_MEMBER(einstein_state::porta_int_w) { // TODO: Implement Port A interrupts (not used for printing!) logerror("Port A interrupt %s\n", BIT(data, 7) ? "enabled" : "disabled"); m_porta_int = data; } READ8_MEMBER(einstein_state::portb_r) { uint8_t data = 0; data |= m_portb_joy->read() & 0x1f; data |= m_centronics_busy << 5; data |= m_centronics_ack << 6; return data; } WRITE8_MEMBER(einstein_state::portb_w) { m_centronics->write_data4(BIT(data, 0)); m_centronics->write_data5(BIT(data, 1)); m_centronics->write_data6(BIT(data, 2)); m_centronics->write_data7(BIT(data, 3)); } READ8_MEMBER(einstein_state::pseudo_adc_r) { uint8_t data = 0x7f; // centre uint8_t port = BIT(m_pseudo_adc, 1) ? m_porta_joy->read() : m_portb_joy->read(); m_adc_daisy->int_w(CLEAR_LINE); switch (m_pseudo_adc & 0x05) { case 4: switch (port & 0x0c) { case 0x04: data = 0xff; break; // right case 0x08: data = 0x00; break; // left } break; case 5: switch (port & 0x03) { case 0x01: data = 0x00; break; // down case 0x02: data = 0xff; break; // up } break; } return data; } WRITE8_MEMBER(einstein_state::pseudo_adc_w) { m_pseudo_adc = data; m_adc_daisy->int_w(ASSERT_LINE); } READ8_MEMBER(einstein_state::alpha_lock_r) { m_alpha_lock_led ^= 1; output().set_value("alpha_lock_led", m_alpha_lock_led); return 0xff; } WRITE8_MEMBER(einstein_state::alpha_lock_w) { m_alpha_lock_led ^= 1; output().set_value("alpha_lock_led", m_alpha_lock_led); } /*************************************************************************** ADDRESS MAPS ***************************************************************************/ void einstein_state::einstein_mem(address_map &map) { map(0x0000, 0x07fff).bankr("bank1").bankw("bank2"); map(0x8000, 0x0ffff).bankrw("bank3"); } // I/O ports are decoded into 8 blocks using address lines A3 to A7 void einstein_state::einstein_io(address_map &map) { map.unmap_value_high(); map(0x00, 0x00).mirror(0xff04).rw(FUNC(einstein_state::reset_r), FUNC(einstein_state::reset_w)); map(0x02, 0x02).mirror(0xff04).rw(m_psg, FUNC(ay8910_device::data_r), FUNC(ay8910_device::address_w)); map(0x03, 0x03).mirror(0xff04).w(m_psg, FUNC(ay8910_device::data_w)); map(0x08, 0x09).mirror(0xff06).rw("vdp", FUNC(tms9129_device::read), FUNC(tms9129_device::write)); map(0x10, 0x11).mirror(0xff06).rw(IC_I060, FUNC(i8251_device::read), FUNC(i8251_device::write)); map(0x18, 0x1b).mirror(0xff04).rw(m_fdc, FUNC(wd1770_device::read), FUNC(wd1770_device::write)); map(0x20, 0x20).mirror(0xff00).rw(FUNC(einstein_state::kybint_msk_r), FUNC(einstein_state::kybint_msk_w)); map(0x21, 0x21).mirror(0xff00).w(FUNC(einstein_state::adcint_msk_w)); map(0x23, 0x23).mirror(0xff00).w(FUNC(einstein_state::drsel_w)); map(0x24, 0x24).mirror(0xff00).rw(FUNC(einstein_state::rom_r), FUNC(einstein_state::rom_w)); map(0x25, 0x25).mirror(0xff00).w(FUNC(einstein_state::fireint_msk_w)); map(0x28, 0x2b).mirror(0xff04).rw(IC_I058, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x30, 0x33).mirror(0xff04).rw(IC_I063, FUNC(z80pio_device::read_alt), FUNC(z80pio_device::write_alt)); map(0x38, 0x38).mirror(0xff07).rw("adc", FUNC(adc0844_device::read), FUNC(adc0844_device::write)); } void einstein_state::einst256_io(address_map &map) { map.unmap_value_high(); map(0x00, 0x00).mirror(0xff04).rw(FUNC(einstein_state::reset_r), FUNC(einstein_state::reset_w)); map(0x02, 0x02).mirror(0xff04).rw(m_psg, FUNC(ay8910_device::data_r), FUNC(ay8910_device::address_w)); map(0x03, 0x03).mirror(0xff04).w(m_psg, FUNC(ay8910_device::data_w)); map(0x08, 0x0b).mirror(0xff04).rw("v9938", FUNC(v9938_device::read), FUNC(v9938_device::write)); map(0x10, 0x11).mirror(0xff06).rw(IC_I060, FUNC(i8251_device::read), FUNC(i8251_device::write)); map(0x18, 0x1b).mirror(0xff04).rw(m_fdc, FUNC(wd1770_device::read), FUNC(wd1770_device::write)); map(0x20, 0x20).mirror(0xff00).rw(FUNC(einstein_state::kybint_msk_r), FUNC(einstein_state::kybint_msk_w)); map(0x21, 0x21).mirror(0xff00).w(FUNC(einstein_state::adcint_msk_w)); map(0x22, 0x22).mirror(0xff00).rw(FUNC(einstein_state::alpha_lock_r), FUNC(einstein_state::alpha_lock_w)); map(0x23, 0x23).mirror(0xff00).w(FUNC(einstein_state::drsel_w)); map(0x24, 0x24).mirror(0xff00).rw(FUNC(einstein_state::rom_r), FUNC(einstein_state::rom_w)); map(0x25, 0x25).mirror(0xff00).w(FUNC(einstein_state::fireint_msk_w)); map(0x26, 0x26).mirror(0xff00).r(FUNC(einstein_state::system_r)); map(0x28, 0x2b).mirror(0xff04).rw(IC_I058, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x30, 0x30).mirror(0xff00).rw(FUNC(einstein_state::porta_r), FUNC(einstein_state::porta_w)); map(0x31, 0x31).mirror(0xff00).w(FUNC(einstein_state::porta_int_w)); map(0x32, 0x32).mirror(0xff00).rw(FUNC(einstein_state::portb_r), FUNC(einstein_state::portb_w)); map(0x38, 0x38).mirror(0xff07).rw(FUNC(einstein_state::pseudo_adc_r), FUNC(einstein_state::pseudo_adc_w)); map(0x80, 0x80).mirror(0xff00).w(FUNC(einstein_state::evdpint_msk_w)); } /*************************************************************************** INPUT PORTS ***************************************************************************/ static INPUT_PORTS_START( keyboard ) PORT_START("LINE0") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BREAK") PORT_CODE(KEYCODE_LALT) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F0") PORT_CODE(KEYCODE_F1) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F7") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_START("LINE1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR(0xA3) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(0xBA) PORT_CHAR(0xBD) // is \xBA correct for double vertical bar || ? PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('@') PORT_START("LINE2") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_START("LINE3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DELETE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('-') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_START("LINE4") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_START("LINE5") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_START("LINE6") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_START("LINE7") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F6") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_START("EXTRA") PORT_BIT(0x1f, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("GRPH") PORT_CODE(KEYCODE_F8) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CONTROL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) INPUT_PORTS_END static INPUT_PORTS_START( einstein ) PORT_INCLUDE(keyboard) // fire buttons for analogue joysticks PORT_START("BUTTONS") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Joystick 1 Button 1") PORT_PLAYER(1) PORT_CHANGED_MEMBER(DEVICE_SELF, einstein_state, joystick_button, 0) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Joystick 2 Button 1") PORT_PLAYER(2) PORT_CHANGED_MEMBER(DEVICE_SELF, einstein_state, joystick_button, 0) PORT_BIT(0xfc, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("analogue_1_x") PORT_BIT(0xff, 0x80, IPT_AD_STICK_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(100) PORT_CENTERDELTA(100) PORT_MINMAX(0,0xff) PORT_PLAYER(1) PORT_CODE_DEC(KEYCODE_4_PAD) PORT_CODE_INC(KEYCODE_6_PAD) PORT_CODE_DEC(JOYCODE_X_LEFT_SWITCH) PORT_CODE_INC(JOYCODE_X_RIGHT_SWITCH) PORT_START("analogue_1_y") PORT_BIT(0xff, 0x80, IPT_AD_STICK_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(100) PORT_CENTERDELTA(100) PORT_MINMAX(0,0xff) PORT_PLAYER(1) PORT_CODE_DEC(KEYCODE_8_PAD) PORT_CODE_INC(KEYCODE_2_PAD) PORT_CODE_DEC(JOYCODE_Y_UP_SWITCH) PORT_CODE_INC(JOYCODE_Y_DOWN_SWITCH) PORT_REVERSE PORT_START("analogue_2_x") PORT_BIT(0xff, 0x80, IPT_AD_STICK_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(100) PORT_CENTERDELTA(100) PORT_MINMAX(0,0xff) PORT_PLAYER(2) PORT_CODE_DEC(JOYCODE_X_LEFT_SWITCH) PORT_CODE_INC(JOYCODE_X_RIGHT_SWITCH) PORT_START("analogue_2_y") PORT_BIT(0xff, 0x80, IPT_AD_STICK_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(100) PORT_CENTERDELTA(100) PORT_MINMAX(0,0xff) PORT_PLAYER(2) PORT_CODE_DEC(JOYCODE_Y_UP_SWITCH) PORT_CODE_INC(JOYCODE_Y_DOWN_SWITCH) PORT_REVERSE INPUT_PORTS_END static INPUT_PORTS_START( einst256 ) PORT_INCLUDE(keyboard) PORT_MODIFY("LINE0") PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALPHA LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_START("PORTA_JOY") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(1) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(1) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) PORT_CHANGED_MEMBER(DEVICE_SELF, einstein_state, joystick_button, 0) PORT_START("PORTB_JOY") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(2) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(2) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(2) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) PORT_CHANGED_MEMBER(DEVICE_SELF, einstein_state, joystick_button, 0) PORT_START("DIPS") PORT_DIPNAME(0x01, 0x00, "Line Standard") PORT_DIPLOCATION("S:1") PORT_DIPSETTING(0x00, "525 lines 60Hz") PORT_DIPSETTING(0x01, "625 lines 50Hz") PORT_DIPNAME(0x02, 0x00, "Printer") PORT_DIPLOCATION("S:2") PORT_DIPSETTING(0x00, "Parallel") PORT_DIPSETTING(0x02, "Serial") PORT_DIPNAME(0x0c, 0x00, "Language") PORT_DIPLOCATION("S:3,4") PORT_DIPSETTING(0x00, "English (ISO646)") PORT_DIPSETTING(0x04, "ASCII") PORT_DIPSETTING(0x08, "German") PORT_DIPSETTING(0x0c, "Spanish") INPUT_PORTS_END /*************************************************************************** MACHINE DRIVERS ***************************************************************************/ static void einstein_floppies(device_slot_interface &device) { device.option_add("3ss", TEAC_FD_30A); device.option_add("3ds", FLOPPY_3_DSDD); device.option_add("525ssqd", FLOPPY_525_SSQD); device.option_add("525qd", FLOPPY_525_QD); device.option_add("35ssdd", FLOPPY_35_SSDD); device.option_add("35dd", FLOPPY_35_DD); } void einstein_state::einstein(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, XTAL_X002 / 2); m_maincpu->set_addrmap(AS_PROGRAM, &einstein_state::einstein_mem); m_maincpu->set_addrmap(AS_IO, &einstein_state::einstein_io); m_maincpu->set_daisy_config(einstein_daisy_chain); /* this is actually clocked at the system clock 4 MHz, but this would be too fast for our driver. So we update at 50Hz and hope this is good enough. */ TIMER(config, "keyboard").configure_periodic(FUNC(einstein_state::keyboard_timer_callback), attotime::from_hz(50)); z80pio_device& pio(Z80PIO(config, IC_I063, XTAL_X002 / 2)); pio.out_int_callback().set(FUNC(einstein_state::int_w<0>)); pio.out_pa_callback().set("cent_data_out", FUNC(output_latch_device::bus_w)); pio.out_ardy_callback().set(FUNC(einstein_state::ardy_w)); pio.in_pb_callback().set("user", FUNC(einstein_userport_device::read)); pio.out_pb_callback().set("user", FUNC(einstein_userport_device::write)); pio.out_brdy_callback().set("user", FUNC(einstein_userport_device::brdy_w)); z80ctc_device& ctc(Z80CTC(config, IC_I058, XTAL_X002 / 2)); ctc.intr_callback().set(FUNC(einstein_state::int_w<1>)); ctc.set_clk<0>(XTAL_X002 / 4); ctc.set_clk<1>(XTAL_X002 / 4); ctc.set_clk<2>(XTAL_X002 / 4); ctc.zc_callback<0>().set(IC_I060, FUNC(i8251_device::write_txc)); ctc.zc_callback<1>().set(IC_I060, FUNC(i8251_device::write_rxc)); ctc.zc_callback<2>().set(IC_I058, FUNC(z80ctc_device::trg3)); /* Einstein daisy chain support for non-Z80 devices */ Z80DAISY_GENERIC(config, m_keyboard_daisy, 0xf7); m_keyboard_daisy->int_handler().set(FUNC(einstein_state::int_w<2>)); Z80DAISY_GENERIC(config, m_adc_daisy, 0xfb); m_adc_daisy->int_handler().set(FUNC(einstein_state::int_w<3>)); Z80DAISY_GENERIC(config, m_fire_daisy, 0xfd); m_fire_daisy->int_handler().set(FUNC(einstein_state::int_w<4>)); /* video hardware */ tms9129_device &vdp(TMS9129(config, "vdp", 10.738635_MHz_XTAL)); vdp.set_screen("screen"); vdp.set_vram_size(0x4000); // 16k RAM, provided by IC i040 and i041 SCREEN(config, "screen", SCREEN_TYPE_RASTER); /* sound hardware */ SPEAKER(config, "mono").front_center(); AY8910(config, m_psg, XTAL_X002 / 4); m_psg->port_b_read_callback().set(FUNC(einstein_state::keyboard_data_read)); m_psg->port_a_write_callback().set(FUNC(einstein_state::keyboard_line_write)); m_psg->add_route(ALL_OUTPUTS, "mono", 0.20); adc0844_device &adc(ADC0844(config, "adc")); adc.intr_callback().set(m_adc_daisy, FUNC(z80daisy_generic_device::int_w)); adc.ch1_callback().set_ioport("analogue_1_x"); adc.ch2_callback().set_ioport("analogue_1_y"); adc.ch3_callback().set_ioport("analogue_2_x"); adc.ch4_callback().set_ioport("analogue_2_y"); /* printer */ CENTRONICS(config, m_centronics, centronics_devices, "printer"); m_centronics->ack_handler().set(IC_I063, FUNC(z80pio_device::strobe_a)); m_centronics->busy_handler().set(FUNC(einstein_state::write_centronics_busy)); m_centronics->perror_handler().set(FUNC(einstein_state::write_centronics_perror)); m_centronics->fault_handler().set(FUNC(einstein_state::write_centronics_fault)); output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out")); m_centronics->set_output_latch(cent_data_out); TIMER(config, m_strobe_timer).configure_generic(FUNC(einstein_state::strobe_callback)); // uart i8251_device &ic_i060(I8251(config, IC_I060, XTAL_X002 / 4)); ic_i060.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); ic_i060.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); ic_i060.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr)); // rs232 port rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr)); rs232.rxd_handler().set(IC_I060, FUNC(i8251_device::write_rxd)); rs232.dsr_handler().set(IC_I060, FUNC(i8251_device::write_dsr)); rs232.cts_handler().set(IC_I060, FUNC(i8251_device::write_cts)); // floppy WD1770(config, m_fdc, XTAL_X002); FLOPPY_CONNECTOR(config, IC_I042 ":0", einstein_floppies, "3ss", floppy_image_device::default_floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, IC_I042 ":1", einstein_floppies, "3ss", floppy_image_device::default_floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, IC_I042 ":2", einstein_floppies, "525qd", floppy_image_device::default_floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, IC_I042 ":3", einstein_floppies, "525qd", floppy_image_device::default_floppy_formats).enable_sound(true); /* software lists */ SOFTWARE_LIST(config, "disk_list").set_original("einstein").set_filter("TC01"); /* RAM is provided by 8k DRAM ICs i009, i010, i011, i012, i013, i014, i015 and i016 */ /* internal ram */ RAM(config, RAM_TAG).set_default_size("64K"); // tatung pipe connector TATUNG_PIPE(config, m_pipe, XTAL_X002 / 2, tatung_pipe_cards, nullptr); m_pipe->set_program_space(m_maincpu, AS_PROGRAM); m_pipe->set_io_space(m_maincpu, AS_IO); m_pipe->nmi_handler().set_inputline(IC_I001, INPUT_LINE_NMI); // user port EINSTEIN_USERPORT(config, "user").bstb_handler().set(IC_I063, FUNC(z80pio_device::strobe_b)); } void einstein_state::einst256(machine_config &config) { einstein(config); /* remove components not present in TC256 */ config.device_remove(IC_I063); config.device_remove("vdp"); config.device_remove("adc"); config.device_remove(IC_I042 ":2"); config.device_remove(IC_I042 ":3"); config.device_remove("pipe"); config.device_remove("user"); /* basic machine hardware */ m_maincpu->set_addrmap(AS_IO, &einstein_state::einst256_io); m_maincpu->set_daisy_config(einst256_daisy_chain); Z80DAISY_GENERIC(config, m_vdp_daisy, 0xfe); m_vdp_daisy->int_handler().set(FUNC(einstein_state::int_w<5>)); /* video hardware */ v9938_device &v9938(V9938(config, "v9938", 21.477272_MHz_XTAL)); v9938.set_screen("screen"); v9938.set_vram_size(0x30000); v9938.int_cb().set(m_vdp_daisy, FUNC(z80daisy_generic_device::int_w)); /* printer */ m_centronics->ack_handler().set(FUNC(einstein_state::write_centronics_ack)); /* cassette */ CASSETTE(config, m_cassette); /* software lists */ subdevice("disk_list")->set_filter("256"); } /*************************************************************************** ROM DEFINITIONS ***************************************************************************/ /* There are two sockets, i023 and i024, each either a 2764 or 27128 * only i023 is used by default and fitted with the 8k bios (called MOS). * * We are missing dumps of version MOS 1.1, possibly of 1.0 if it exists. */ ROM_START( einstein ) ROM_REGION(0x8000, "bios", ROMREGION_ERASEFF) /* i023 */ ROM_SYSTEM_BIOS(0, "mos12", "MOS 1.2") ROMX_LOAD("mos12.i023", 0x0000, 0x2000, CRC(ec134953) SHA1(a02125d8ebcda48aa784adbb42a8b2d7ef3a4b77), ROM_BIOS(0)) ROM_SYSTEM_BIOS(1, "mos121", "MOS 1.21") ROMX_LOAD("mos121.i023", 0x0000, 0x2000, CRC(a746eeb6) SHA1(f75aaaa777d0fd92225acba291f6bf428b341d3e), ROM_BIOS(1)) ROM_RELOAD(0x2000, 0x2000) ROM_END ROM_START( einst256 ) ROM_REGION(0x8000, "bios", ROMREGION_ERASEFF) /* i008 */ ROM_LOAD("mos21.i008", 0x0000, 0x4000, CRC(d1bb5efc) SHA1(9168df70af6746c88748049d1b9d119a29e605de) ) ROM_END /*************************************************************************** GAME DRIVERS ***************************************************************************/ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1984, einstein, 0, 0, einstein, einstein, einstein_state, empty_init, "Tatung", "Einstein TC-01", 0 ) COMP( 1986, einst256, 0, 0, einst256, einst256, einstein_state, empty_init, "Tatung", "Einstein 256", 0 )