diff options
Diffstat (limited to 'src/mame/drivers/elwro800.cpp')
-rw-r--r-- | src/mame/drivers/elwro800.cpp | 646 |
1 files changed, 0 insertions, 646 deletions
diff --git a/src/mame/drivers/elwro800.cpp b/src/mame/drivers/elwro800.cpp deleted file mode 100644 index 59b7d0c53c2..00000000000 --- a/src/mame/drivers/elwro800.cpp +++ /dev/null @@ -1,646 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Mariusz Wojcieszek -/*************************************************************************** - - Elwro 800 Junior - - Driver by Mariusz Wojcieszek - - ToDo: - - 8251 DTR and DTS signals are connected (with some additional logic) to NMI of Z80, this - is not emulated - - 8251 is used for JUNET network (a network of Elwro 800 Junior computers, allows sharing - floppy disc drives and printers) - network is not emulated - -****************************************************************************/ - -#include "emu.h" -#include "includes/spectrum.h" - -/* Components */ -#include "cpu/z80/z80.h" -#include "machine/upd765.h" /* for floppy disc controller */ -#include "machine/i8255.h" -#include "bus/centronics/ctronics.h" -#include "machine/i8251.h" - -/* Devices */ -#include "imagedev/cassette.h" -#include "imagedev/floppy.h" -#include "formats/tzx_cas.h" -#include "machine/bankdev.h" - -#include "screen.h" -#include "speaker.h" - - -class elwro800_state : public spectrum_state -{ -public: - elwro800_state(const machine_config &mconfig, device_type type, const char *tag) : - spectrum_state(mconfig, type, tag), - m_i8251(*this, "i8251"), - m_i8255(*this, "ppi8255"), - m_centronics(*this, "centronics"), - m_upd765(*this, "upd765"), - m_flop(*this, "upd765:%u", 0U), - m_bank1(*this, "bank1"), - m_bank2(*this, "bank2"), - m_io_ports(*this, {"LINE7", "LINE6", "LINE5", "LINE4", "LINE3", "LINE2", "LINE1", "LINE0", "LINE8"}), - m_io_line9(*this, "LINE9"), - m_io_network_id(*this, "NETWORK_ID") - { - } - - void elwro800(machine_config &config); - -private: - /* for elwro800 */ - /* RAM mapped at 0 */ - uint8_t m_ram_at_0000; - - /* NR signal */ - uint8_t m_NR; - - uint8_t nmi_r(); - void elwro800jr_fdc_control_w(uint8_t data); - uint8_t elwro800jr_io_r(offs_t offset); - void elwro800jr_io_w(offs_t offset, uint8_t data); - DECLARE_MACHINE_RESET(elwro800); - INTERRUPT_GEN_MEMBER(elwro800jr_interrupt); - uint8_t i8255_port_c_r(); - void i8255_port_c_w(uint8_t data); - DECLARE_WRITE_LINE_MEMBER(write_centronics_ack); - - void elwro800_bank1(address_map &map); - void elwro800_bank2(address_map &map); - void elwro800_io(address_map &map); - void elwro800_m1(address_map &map); - void elwro800_mem(address_map &map); - - required_device<i8251_device> m_i8251; - required_device<i8255_device> m_i8255; - required_device<centronics_device> m_centronics; - required_device<upd765a_device> m_upd765; - required_device_array<floppy_connector, 2> m_flop; - required_device<address_map_bank_device> m_bank1; - required_device<address_map_bank_device> m_bank2; - required_ioport_array<9> m_io_ports; - required_ioport m_io_line9; - required_ioport m_io_network_id; - - void elwro800jr_mmu_w(uint8_t data); - - int m_centronics_ack; -}; - - -/************************************* - * - * When RAM is mapped at 0x0000 - 0x1fff (in CP/J mode), reading a location 66 with /M1=0 - * (effectively reading NMI vector) is hardwired to return 0xDF (RST #18) - * (note that in CP/J mode address 66 is used for FCB) - * - *************************************/ - -uint8_t elwro800_state::nmi_r() -{ - if (m_ram_at_0000) - return 0xdf; - else - return m_bank1->read8(0x66); -} - -/************************************* - * - * UPD765/Floppy drive - * - *************************************/ - -void elwro800_state::elwro800jr_fdc_control_w(uint8_t data) -{ - for (int i = 0; i < 2; i++) - if (m_flop[i]->get_device()) - m_flop[i]->get_device()->mon_w(!BIT(data, i)); - - m_upd765->tc_w(data & 0x04); - - if(!(data & 8)) - m_upd765->reset(); -} - -/************************************* - * - * I/O port F7: memory mapping - * - *************************************/ - -void elwro800_state::elwro800jr_mmu_w(uint8_t data) -{ - uint8_t *prom = memregion("proms")->base() + 0x200; - uint8_t *messram = m_ram->pointer(); - uint8_t cs; - uint8_t ls175; - - ls175 = bitswap<8>(data, 7, 6, 5, 4, 4, 5, 7, 6) & 0x0f; - - cs = prom[((0x0000 >> 10) | (ls175 << 6)) & 0x1ff]; - if (!BIT(cs,0)) - { - // rom BAS0 - m_bank1->set_bank(1); - m_ram_at_0000 = 0; - } - else if (!BIT(cs,4)) - { - // rom BOOT - m_bank1->set_bank(2); - m_ram_at_0000 = 0; - } - else - { - // RAM - m_bank1->set_bank(0); - m_ram_at_0000 = 1; - } - - cs = prom[((0x2000 >> 10) | (ls175 << 6)) & 0x1ff]; - if (!BIT(cs,1)) - { - m_bank2->set_bank(1); // BAS1 ROM - } - else - { - m_bank2->set_bank(0); // RAM - } - - if (BIT(ls175,2)) - { - // relok - m_screen_location = messram + 0xe000; - } - else - { - m_screen_location = messram + 0x4000; - } - - m_NR = BIT(ls175,3); - if (BIT(ls175,3)) - { - logerror("Reading network number\n"); - } -} - -/************************************* - * - * 8255: joystick and Centronics printer connections - * - *************************************/ - -WRITE_LINE_MEMBER(elwro800_state::write_centronics_ack) -{ - m_centronics_ack = state; - m_i8255->pc2_w(state); -} - -uint8_t elwro800_state::i8255_port_c_r() -{ - return m_centronics_ack << 2; -} - -void elwro800_state::i8255_port_c_w(uint8_t data) -{ - m_centronics->write_strobe((data >> 7) & 0x01); -} - -/************************************* - * - * I/O reads and writes - * - * I/O accesses are decoded by prom which uses 8 low address lines (A0-A8) as input - * and outputs chip select signals for system components. Standard addresses are: - * - * 0x1F: 8255 port A (joystick) - * 0xBE: 8251 data (Junet network) - * 0xBF: 8251 control/status (Junet network) - * 0xDC: 8255 control - * 0xDD: 8255 port C (centronics 7-strobe, 2-ack) - * 0xDE: 8255 port B (centronics data) - * 0xDF: 8255 port A (joystick) - * 0xEE: FDC 765A status - * 0xEF: FDC 765A command and data - * 0xF1: FDC control (motor on/off) - * 0xF7: memory banking - * 0xFE (write): border color, speaker and tape (as in Spectrum) - * 0x??FE, 0x??7F, 0x??7B (read): keyboard reading - *************************************/ - -uint8_t elwro800_state::elwro800jr_io_r(offs_t offset) -{ - uint8_t *prom = memregion("proms")->base(); - uint8_t cs = prom[offset & 0x1ff]; - - if (!BIT(cs,0)) - { - // CFE - int mask = 0x8000; - int data = 0xff; - int i; - - if ( !m_NR ) - { - for (i = 0; i < 9; mask >>= 1, i++) - { - if (!(offset & mask)) - { - data &= m_io_ports[i]->read(); - } - } - - if ((offset & 0xff) == 0xfb) - { - data &= m_io_line9->read(); - } - - /* cassette input from wav */ - if (m_cassette->input() > 0.0038 ) - { - data |= 0x40; - } - } - else - { - data = m_io_network_id->read(); - } - - return data; - } - else if (!BIT(cs,1)) - { - // CF7 - } - else if (!BIT(cs,2)) - { - // CS55 - return m_i8255->read((offset & 0x03) ^ 0x03); - } - else if (!BIT(cs,3)) - { - // CSFDC - if (offset & 1) - { - return m_upd765->fifo_r(); - } - else - { - return m_upd765->msr_r(); - } - } - else if (!BIT(cs,4)) - { - // CS51 - return m_i8251->read(offset & 1); - } - else if (!BIT(cs,5)) - { - // CF1 - } - else - { - logerror("Unmapped I/O read: %04x\n", offset); - } - return 0x00; -} - -void elwro800_state::elwro800jr_io_w(offs_t offset, uint8_t data) -{ - uint8_t *prom = memregion("proms")->base(); - uint8_t cs = prom[offset & 0x1ff]; - - if (!BIT(cs,0)) - { - // CFE - spectrum_port_fe_w(offset, data); - } - else if (!BIT(cs,1)) - { - // CF7 - elwro800jr_mmu_w(data); - } - else if (!BIT(cs,2)) - { - // CS55 - m_i8255->write((offset & 0x03) ^ 0x03, data); - } - else if (!BIT(cs,3)) - { - // CSFDC - if (offset & 1) - { - m_upd765->fifo_w(data); - } - } - else if (!BIT(cs,4)) - { - // CS51 - m_i8251->write(offset & 1, data); - } - else if (!BIT(cs,5)) - { - // CF1 - elwro800jr_fdc_control_w(data); - } - else - { - logerror("Unmapped I/O write: %04x %02x\n", offset, data); - } -} - -/************************************* - * - * Memory maps - * - *************************************/ - -void elwro800_state::elwro800_mem(address_map &map) -{ - map(0x0000, 0x1fff).m(m_bank1, FUNC(address_map_bank_device::amap8)); - map(0x2000, 0x3fff).m(m_bank2, FUNC(address_map_bank_device::amap8)); - map(0x4000, 0xffff).bankrw("rambank3"); -} - -void elwro800_state::elwro800_io(address_map &map) -{ - map(0x0000, 0xffff).rw(FUNC(elwro800_state::elwro800jr_io_r), FUNC(elwro800_state::elwro800jr_io_w)); -} - -void elwro800_state::elwro800_m1(address_map &map) -{ - map(0x0000, 0x1fff).m(m_bank1, FUNC(address_map_bank_device::amap8)); - map(0x0066, 0x0066).r(FUNC(elwro800_state::nmi_r)); - map(0x2000, 0x3fff).m(m_bank2, FUNC(address_map_bank_device::amap8)); - map(0x4000, 0xffff).bankrw("rambank3"); -} - -void elwro800_state::elwro800_bank1(address_map &map) -{ - map(0x0000, 0x1fff).bankrw("rambank1"); - map(0x2000, 0x3fff).rom().region("maincpu", 0x0000).nopw(); // BAS0 ROM - map(0x4000, 0x5fff).rom().region("maincpu", 0x4000).nopw(); // BOOT ROM -} - -void elwro800_state::elwro800_bank2(address_map &map) -{ - map(0x0000, 0x1fff).bankrw("rambank2"); - map(0x2000, 0x3fff).rom().region("maincpu", 0x2000).nopw(); // BAS1 ROM -} - -/************************************* - * - * Input ports - * - *************************************/ - -static INPUT_PORTS_START( elwro800 ) - PORT_START("LINE0") /* 0xFEFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": *") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(':') PORT_CHAR('*') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("; +") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') - - PORT_START("LINE1") /* 0xFDFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("[ {") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') - - PORT_START("LINE2") /* 0xFBFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - - PORT_START("LINE3") /* 0xF7FE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR(0xff) PORT_CHAR('!') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR(0xff) PORT_CHAR('"') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xff) PORT_CHAR('#') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR(0xff) PORT_CHAR('$') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR(0xff) PORT_CHAR('%') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/ ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@ \\") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('@') PORT_CHAR('\\') - - PORT_START("LINE4") /* 0xEFFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 _") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(0xff) PORT_CHAR('_') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(0xff) PORT_CHAR(')') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR(0xff) PORT_CHAR('(') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 '") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR(0xff) PORT_CHAR('\'') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR(0xff) PORT_CHAR('&') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL),127) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("] }") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') - - PORT_START("LINE5") /* 0xDFFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC),27) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(BACKSPACE),8) - - PORT_START("LINE6") /* 0xBFFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) - - PORT_START("LINE7") /* 0x7FFE */ - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SYMBOL SHIFT") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_2) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("^ -") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') - - PORT_START("LINE8") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC4\x98") PORT_CODE(KEYCODE_0_PAD) // LATIN CAPITAL LETTER E WITH OGONEK - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC3\x93") PORT_CODE(KEYCODE_1_PAD) // LATIN CAPITAL LETTER O WITH ACUTE - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC5\x9A") PORT_CODE(KEYCODE_2_PAD) // LATIN CAPITAL LETTER S WITH ACUTE - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC5\x81") PORT_CODE(KEYCODE_3_PAD) // LATIN CAPITAL LETTER L WITH STROKE - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC5\xB9") PORT_CODE(KEYCODE_4_PAD) // LATIN CAPITAL LETTER Z WITH ACUTE - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC5\x83") PORT_CODE(KEYCODE_5_PAD) // LATIN CAPITAL LETTER N WITH ACUTE - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC4\x84") PORT_CODE(KEYCODE_6_PAD) // LATIN CAPITAL LETTER A WITH OGONEK - - PORT_START("LINE9") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DIR") PORT_CODE(KEYCODE_HOME) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cursor Down") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cursor Up") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cursor Right") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Cursor Left") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) - PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC4\x86") PORT_CODE(KEYCODE_7_PAD) // LATIN CAPITAL LETTER C WITH ACUTE - PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xC5\xBB") PORT_CODE(KEYCODE_8_PAD) // LATIN CAPITAL LETTER Z WITH DOT ABOVE - - PORT_START("JOY") - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P1 Joystick Right") PORT_CODE(JOYCODE_X_RIGHT_SWITCH) - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P1 Joystick Left") PORT_CODE(JOYCODE_X_LEFT_SWITCH) - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P1 Joystick Down") PORT_CODE(JOYCODE_Y_DOWN_SWITCH) - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P1 Joystick Up") PORT_CODE(JOYCODE_Y_UP_SWITCH) - PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("P1 Joystick Fire") PORT_CODE(JOYCODE_BUTTON1) - - PORT_START("NETWORK_ID") - PORT_DIPNAME( 0x3f, 0x01, "Computer network ID" ) - PORT_DIPSETTING( 0x01, "1" ) - PORT_DIPSETTING( 0x10, "16" ) - PORT_DIPSETTING( 0x11, "17" ) - -INPUT_PORTS_END - -/************************************* - * - * Machine - * - *************************************/ - -MACHINE_RESET_MEMBER(elwro800_state,elwro800) -{ - uint8_t *messram = m_ram->pointer(); - - memset(messram, 0, 64*1024); - - membank("rambank1")->set_base(messram + 0x0000); - membank("rambank2")->set_base(messram + 0x2000); - membank("rambank3")->set_base(messram + 0x4000); - - m_port_7ffd_data = 0; - m_port_1ffd_data = -1; - - // this is a reset of ls175 in mmu - elwro800jr_mmu_w(0); -} - -INTERRUPT_GEN_MEMBER(elwro800_state::elwro800jr_interrupt) -{ - device.execute().set_input_line(0, HOLD_LINE); -} - -static void elwro800jr_floppies(device_slot_interface &device) -{ - device.option_add("525hd", FLOPPY_525_HD); -} - -/* F4 Character Displayer */ -static const gfx_layout elwro800_charlayout = -{ - 8, 8, /* 8 x 8 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, - 8*8 /* every char takes 8 bytes */ -}; - -static GFXDECODE_START( gfx_elwro800 ) - GFXDECODE_ENTRY( "maincpu", 0x3c00, elwro800_charlayout, 0, 8 ) -GFXDECODE_END - - -void elwro800_state::elwro800(machine_config &config) -{ - /* basic machine hardware */ - Z80(config, m_maincpu, 14_MHz_XTAL / 4); /* 3.5 MHz */ - m_maincpu->set_addrmap(AS_PROGRAM, &elwro800_state::elwro800_mem); - m_maincpu->set_addrmap(AS_IO, &elwro800_state::elwro800_io); - m_maincpu->set_addrmap(AS_OPCODES, &elwro800_state::elwro800_m1); - m_maincpu->set_vblank_int("screen", FUNC(elwro800_state::elwro800jr_interrupt)); - - MCFG_MACHINE_RESET_OVERRIDE(elwro800_state,elwro800) - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_raw(14_MHz_XTAL / 2, 448, 0, SPEC_SCREEN_WIDTH, 312, 0, SPEC_SCREEN_HEIGHT); - // Sync and interrupt timings determined by 2716 EPROM - screen.set_screen_update(FUNC(elwro800_state::screen_update_spectrum)); - screen.screen_vblank().set(FUNC(elwro800_state::screen_vblank_spectrum)); - screen.set_palette("palette"); - - PALETTE(config, "palette", FUNC(elwro800_state::spectrum_palette), 16); - GFXDECODE(config, "gfxdecode", "palette", gfx_elwro800); - - MCFG_VIDEO_START_OVERRIDE(elwro800_state, spectrum) - - UPD765A(config, "upd765", 8_MHz_XTAL / 2, true, true); - - I8255A(config, m_i8255, 0); - m_i8255->in_pa_callback().set_ioport("JOY"); - m_i8255->in_pb_callback().set("cent_data_in", FUNC(input_buffer_device::read)); - m_i8255->out_pb_callback().set("cent_data_out", FUNC(output_latch_device::write)); - m_i8255->in_pc_callback().set(FUNC(elwro800_state::i8255_port_c_r)); - m_i8255->out_pc_callback().set(FUNC(elwro800_state::i8255_port_c_w)); - - /* printer */ - CENTRONICS(config, m_centronics, centronics_devices, "printer"); - m_centronics->set_data_input_buffer("cent_data_in"); - m_centronics->ack_handler().set(FUNC(elwro800_state::write_centronics_ack)); - - INPUT_BUFFER(config, "cent_data_in"); - output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out")); - m_centronics->set_output_latch(cent_data_out); - - I8251(config, m_i8251, 14_MHz_XTAL / 4); - - /* sound hardware */ - SPEAKER(config, "mono").front_center(); - SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50); - - CASSETTE(config, m_cassette); - m_cassette->set_formats(tzx_cassette_formats); - m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED); - m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); - - FLOPPY_CONNECTOR(config, "upd765:0", elwro800jr_floppies, "525hd", floppy_image_device::default_floppy_formats); - FLOPPY_CONNECTOR(config, "upd765:1", elwro800jr_floppies, "525hd", floppy_image_device::default_floppy_formats); - - /* internal ram */ - RAM(config, RAM_TAG).set_default_size("64K"); - - ADDRESS_MAP_BANK(config, "bank1").set_map(&elwro800_state::elwro800_bank1).set_data_width(8).set_stride(0x2000); - ADDRESS_MAP_BANK(config, "bank2").set_map(&elwro800_state::elwro800_bank2).set_data_width(8).set_stride(0x2000); -} - -/************************************* - * - * ROM definition - * - *************************************/ - -ROM_START( elwro800 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "bas04.epr", 0x0000, 0x2000, CRC(6ab16f36) SHA1(49a19b279f311279c7fed3d2b3f207732d674c26) ) - ROM_LOAD( "bas14.epr", 0x2000, 0x2000, CRC(a743eb80) SHA1(3a300550838535b4adfe6d05c05fe0b39c47df16) ) - ROM_LOAD( "bootv.epr", 0x4000, 0x2000, CRC(de5fa37d) SHA1(4f203efe53524d84f69459c54b1a0296faa83fd9) ) - - ROM_REGION(0x0c00, "proms", 0 ) - ROM_LOAD( "junior_io_prom.bin", 0x0000, 0x0200, CRC(c6a777c4) SHA1(41debc1b4c3bd4eef7e0e572327c759e0399a49c) ) - ROM_LOAD( "junior_mem_prom.bin", 0x0200, 0x0200, CRC(0f745f42) SHA1(360ec23887fb6d7e19ee85d2bb30d9fa57f4936e) ) - ROM_LOAD( "tv_2716.e11", 0x0400, 0x0800, CRC(6093e80e) SHA1(a4972f336490d15222f4f24369f1f3253cfb9516) ) -ROM_END - -/* Driver */ - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1986, elwro800, 0, 0, elwro800, elwro800, elwro800_state, empty_init, "Elwro", "800-3 Junior", 0 ) |