// license: GPL-2.0+ // copyright-holders: Dirk Best // thanks-to: Tomas Karlsson, Sean Young /*************************************************************************** Spectravideo SVI-318/328 ***************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "imagedev/cassette.h" #include "machine/bankdev.h" #include "machine/i8255.h" #include "machine/ram.h" #include "sound/ay8910.h" #include "sound/spkrdev.h" #include "video/tms9928a.h" #include "bus/generic/carts.h" #include "bus/generic/slot.h" #include "bus/svi3x8/expander/expander.h" #include "softlist.h" #include "speaker.h" #include "formats/svi_cas.h" //************************************************************************** // CONSTANTS & MACROS //************************************************************************** #define IS_SVI328 (m_ram->size() == 64 * 1024) #define CCS1 (m_cart == 0 && offset < 0x4000) #define CCS2 (m_cart == 0 && offset >= 0x4000 && offset < 0x8000) #define CCS3 (m_cart == 0 && m_rom2 == 0 && offset >= 0x8000 && offset < 0xc000) #define CCS4 (m_cart == 0 && m_rom3 == 0 && offset >= 0xc000) #define ROMCS (m_romdis == 1 && offset < 0x8000) #define RAMCS (m_ramdis == 1 && offset >= 0x8000) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class svi3x8_state : public driver_device { public: svi3x8_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_ram(*this, RAM_TAG), m_io(*this, "io"), m_basic(*this, "basic"), m_vdp(*this, "vdp"), m_speaker(*this, "speaker"), m_cassette(*this, "cassette"), m_cart_rom(*this, "cartslot"), m_expander(*this, "exp"), m_keyboard(*this, "KEY.%u", 0), m_buttons(*this, "BUTTONS"), m_led_caps_lock(*this, "led_caps_lock"), m_intvdp(0), m_intexp(0), m_romdis(1), m_ramdis(1), m_cart(1), m_bk21(1), m_rom2(1), m_rom3(1), m_ctrl1(-1), m_keyboard_row(0) {} void svi318(machine_config &config); void svi328n(machine_config &config); void svi318p(machine_config &config); void svi318n(machine_config &config); void svi328p(machine_config &config); private: uint8_t ppi_port_a_r(); uint8_t ppi_port_b_r(); void ppi_port_c_w(uint8_t data); void bank_w(uint8_t data); DECLARE_WRITE_LINE_MEMBER( intvdp_w ); uint8_t mreq_r(offs_t offset); void mreq_w(offs_t offset, uint8_t data); // from expander bus DECLARE_WRITE_LINE_MEMBER( intexp_w ); DECLARE_WRITE_LINE_MEMBER( romdis_w ); DECLARE_WRITE_LINE_MEMBER( ramdis_w ); DECLARE_WRITE_LINE_MEMBER( ctrl1_w ); DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load); void svi3x8_io(address_map &map); void svi3x8_io_bank(address_map &map); void svi3x8_mem(address_map &map); virtual void machine_start() override; virtual void machine_reset() override; required_device m_maincpu; required_device m_ram; required_device m_io; required_memory_region m_basic; required_device m_vdp; required_device m_speaker; required_device m_cassette; required_device m_cart_rom; required_device m_expander; required_ioport_array<16> m_keyboard; required_ioport m_buttons; output_finder<> m_led_caps_lock; int m_intvdp; int m_intexp; int m_romdis; int m_ramdis; int m_cart; int m_bk21; int m_rom2; int m_rom3; int m_ctrl1; uint8_t m_keyboard_row; }; //************************************************************************** // ADDRESS MAPS //************************************************************************** void svi3x8_state::svi3x8_mem(address_map &map) { map.unmap_value_high(); map(0x0000, 0xffff).rw(FUNC(svi3x8_state::mreq_r), FUNC(svi3x8_state::mreq_w)); } void svi3x8_state::svi3x8_io(address_map &map) { map.global_mask(0xff); map(0x00, 0xff).m(m_io, FUNC(address_map_bank_device::amap8)); } void svi3x8_state::svi3x8_io_bank(address_map &map) { map(0x000, 0x0ff).rw(m_expander, FUNC(svi_expander_device::iorq_r), FUNC(svi_expander_device::iorq_w)); map(0x100, 0x17f).rw(m_expander, FUNC(svi_expander_device::iorq_r), FUNC(svi_expander_device::iorq_w)); map(0x180, 0x181).mirror(0x22).w(m_vdp, FUNC(tms9928a_device::write)); map(0x184, 0x185).mirror(0x22).r(m_vdp, FUNC(tms9928a_device::read)); map(0x188, 0x188).mirror(0x23).w("psg", FUNC(ay8910_device::address_w)); map(0x18c, 0x18c).mirror(0x23).w("psg", FUNC(ay8910_device::data_w)); map(0x190, 0x190).mirror(0x23).r("psg", FUNC(ay8910_device::data_r)); map(0x194, 0x197).w("ppi", FUNC(i8255_device::write)); map(0x198, 0x19a).r("ppi", FUNC(i8255_device::read)); } //************************************************************************** // INPUTS //************************************************************************** static INPUT_PORTS_START( svi318 ) PORT_START("KEY.0") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') PORT_START("KEY.1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') 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_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') 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_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_START("KEY.2") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_START("KEY.3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('0') PORT_CHAR('J') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_START("KEY.4") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_START("KEY.5") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('~') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_NAME(UTF8_UP) PORT_START("KEY.6") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_NAME("Ctrl") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(PGUP)) PORT_NAME("Left Grph") PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(PGDN)) PORT_NAME("Right Grph") PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(END)) PORT_NAME("Stop") PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_NAME(UTF8_LEFT) PORT_START("KEY.7") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_NAME("CLS/HM Copy") PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_NAME("Ins Paste") PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_NAME(UTF8_DOWN) PORT_START("KEY.8") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_NAME("Del Cut") PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_NAME("Caps Lock") PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PAUSE) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_NAME("Select") PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PRTSCR) PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) PORT_NAME("Print") PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_NAME(UTF8_RIGHT) PORT_START("KEY.9") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.10") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.11") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.12") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.13") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.14") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEY.15") PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("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_JOYSTICK_UP) PORT_PLAYER(2) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(2) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(2) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2) PORT_START("BUTTONS") PORT_BIT(0x0f, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED) INPUT_PORTS_END static INPUT_PORTS_START( svi328 ) PORT_INCLUDE(svi318) PORT_MODIFY("KEY.9") PORT_BIT (0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_BIT (0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_BIT (0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_BIT (0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_BIT (0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_BIT (0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_BIT (0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_BIT (0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_MODIFY("KEY.10") PORT_BIT (0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_BIT (0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_BIT (0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_BIT (0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) PORT_BIT (0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_BIT (0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) PORT_BIT (0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) PORT_BIT (0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) INPUT_PORTS_END //************************************************************************** // VIDEO EMULATION //************************************************************************** WRITE_LINE_MEMBER( svi3x8_state::intvdp_w ) { m_intvdp = state; if (m_ctrl1 == 0) m_maincpu->set_input_line(INPUT_LINE_NMI, m_intvdp ? ASSERT_LINE : CLEAR_LINE); else m_maincpu->set_input_line(INPUT_LINE_IRQ0, (m_intvdp || m_intexp) ? ASSERT_LINE : CLEAR_LINE); } //************************************************************************** // MACHINE EMULATION //************************************************************************** void svi3x8_state::machine_start() { m_led_caps_lock.resolve(); // register for save states save_item(NAME(m_intvdp)); save_item(NAME(m_intexp)); save_item(NAME(m_romdis)); save_item(NAME(m_ramdis)); save_item(NAME(m_cart)); save_item(NAME(m_bk21)); save_item(NAME(m_rom2)); save_item(NAME(m_rom3)); save_item(NAME(m_ctrl1)); save_item(NAME(m_keyboard_row)); } void svi3x8_state::machine_reset() { m_intvdp = 0; m_intexp = 0; m_romdis = 1; m_ramdis = 1; m_cart = 1; m_bk21 = 1; m_rom2 = 1; m_rom3 = 1; m_keyboard_row = 0; if (m_ctrl1 == -1) ctrl1_w(1); } uint8_t svi3x8_state::mreq_r(offs_t offset) { // ctrl1 inverts a15 if (m_ctrl1 == 0) offset ^= 0x8000; if (CCS1 || CCS2 || CCS3 || CCS4) return m_cart_rom->read_rom(offset); uint8_t data = m_expander->mreq_r(offset); if (ROMCS) data = m_basic->as_u8(offset); if (m_bk21 == 0 && IS_SVI328 && offset < 0x8000) data = m_ram->read(offset); if (RAMCS && (IS_SVI328 || offset >= 0xc000)) data = m_ram->read(IS_SVI328 ? offset : offset - 0xc000); return data; } void svi3x8_state::mreq_w(offs_t offset, uint8_t data) { // ctrl1 inverts a15 if (m_ctrl1 == 0) offset ^= 0x8000; if (CCS1 || CCS2 || CCS3 || CCS4) return; m_expander->mreq_w(offset, data); if (m_bk21 == 0 && IS_SVI328 && offset < 0x8000) m_ram->write(offset, data); if (RAMCS && (IS_SVI328 || offset >= 0xc000)) m_ram->write(IS_SVI328 ? offset : offset - 0xc000, data); } void svi3x8_state::bank_w(uint8_t data) { logerror("bank_w: %02x\n", data); m_cart = BIT(data, 0); m_bk21 = BIT(data, 1); m_expander->bk21_w(BIT(data, 1)); m_expander->bk22_w(BIT(data, 2)); m_expander->bk31_w(BIT(data, 3)); m_expander->bk32_w(BIT(data, 4)); m_rom2 = BIT(data, 6); m_rom3 = BIT(data, 7); m_led_caps_lock = BIT(data, 5); } uint8_t svi3x8_state::ppi_port_a_r() { uint8_t data = 0x3f; // bit 0-3, paddle or tablet input // bit 4-5, joystick buttons data &= m_buttons->read(); // bit 6-7, cassette data |= m_cassette->exists() ? 0x00 : 0x40; data |= (m_cassette->input() > 0.0038) ? 0x80 : 0x00; return data; } uint8_t svi3x8_state::ppi_port_b_r() { // bit 0-7, keyboard data return m_keyboard[m_keyboard_row]->read(); } void svi3x8_state::ppi_port_c_w(uint8_t data) { // bit 0-3, keyboard row m_keyboard_row = data & 0x0f; // bit 4-6, cassette m_cassette->change_state(BIT(data, 4) ? CASSETTE_MOTOR_DISABLED : CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR); m_cassette->output(BIT(data, 5) ? -1.0 : +1.0); //m_cassette->change_state(BIT(data, 6) ? CASSETTE_SPEAKER_ENABLED : CASSETTE_SPEAKER_MUTED, CASSETTE_MASK_SPEAKER); // bit 7, mix psg sound (keyboard click) m_speaker->level_w(BIT(data, 7)); } WRITE_LINE_MEMBER( svi3x8_state::intexp_w ) { m_intexp = state; if (m_ctrl1 == 0) m_maincpu->set_input_line(INPUT_LINE_IRQ0, m_intexp ? ASSERT_LINE : CLEAR_LINE); else m_maincpu->set_input_line(INPUT_LINE_IRQ0, (m_intvdp || m_intexp) ? ASSERT_LINE : CLEAR_LINE); } WRITE_LINE_MEMBER( svi3x8_state::romdis_w ) { m_romdis = state; } WRITE_LINE_MEMBER( svi3x8_state::ramdis_w ) { m_ramdis = state; } WRITE_LINE_MEMBER( svi3x8_state::ctrl1_w ) { m_ctrl1 = state; // ctrl1 disables internal io address decoding m_io->set_bank(m_ctrl1); } //************************************************************************** // CARTRIDGE //************************************************************************** DEVICE_IMAGE_LOAD_MEMBER( svi3x8_state::cart_load ) { uint32_t size = m_cart_rom->common_get_size("rom"); m_cart_rom->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE); m_cart_rom->common_load_rom(m_cart_rom->get_rom_base(), size, "rom"); return image_init_result::PASS; } //************************************************************************** // MACHINE DEFINTIONS //************************************************************************** void svi3x8_state::svi318(machine_config &config) { // basic machine hardware Z80(config, m_maincpu, XTAL(10'738'635) / 3); m_maincpu->set_addrmap(AS_PROGRAM, &svi3x8_state::svi3x8_mem); m_maincpu->set_addrmap(AS_IO, &svi3x8_state::svi3x8_io); RAM(config, m_ram).set_default_size("16K"); ADDRESS_MAP_BANK(config, "io").set_map(&svi3x8_state::svi3x8_io_bank).set_data_width(8).set_addr_width(9).set_stride(0x100); i8255_device &ppi(I8255(config, "ppi")); ppi.in_pa_callback().set(FUNC(svi3x8_state::ppi_port_a_r)); ppi.in_pb_callback().set(FUNC(svi3x8_state::ppi_port_b_r)); ppi.out_pc_callback().set(FUNC(svi3x8_state::ppi_port_c_w)); // sound hardware SPEAKER(config, "mono").front_center(); SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50); ay8910_device &psg(AY8910(config, "psg", XTAL(10'738'635) / 6)); psg.port_a_read_callback().set_ioport("JOY"); psg.port_b_write_callback().set(FUNC(svi3x8_state::bank_w)); psg.add_route(ALL_OUTPUTS, "mono", 0.75); // cassette CASSETTE(config, m_cassette); m_cassette->set_default_state(CASSETTE_STOPPED); m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); m_cassette->set_formats(svi_cassette_formats); m_cassette->set_interface("svi318_cass"); SOFTWARE_LIST(config, "cass_list").set_original("svi318_cass"); // cartridge slot GENERIC_CARTSLOT(config, "cartslot", generic_plain_slot, "svi318_cart", "bin,rom").set_device_load(FUNC(svi3x8_state::cart_load)); SOFTWARE_LIST(config, "cart_list").set_original("svi318_cart"); // expander bus SVI_EXPANDER(config, m_expander, svi_expander_modules); m_expander->int_handler().set(FUNC(svi3x8_state::intexp_w)); m_expander->romdis_handler().set(FUNC(svi3x8_state::romdis_w)); m_expander->ramdis_handler().set(FUNC(svi3x8_state::ramdis_w)); m_expander->ctrl1_handler().set(FUNC(svi3x8_state::ctrl1_w)); m_expander->excsr_handler().set(m_vdp, FUNC(tms9928a_device::read)); m_expander->excsw_handler().set(m_vdp, FUNC(tms9928a_device::write)); } void svi3x8_state::svi318p(machine_config &config) { svi318(config); // video hardware TMS9929A(config, m_vdp, XTAL(10'738'635)).set_screen("screen"); m_vdp->set_vram_size(0x4000); m_vdp->int_callback().set(FUNC(svi3x8_state::intvdp_w)); SCREEN(config, "screen", SCREEN_TYPE_RASTER); } void svi3x8_state::svi318n(machine_config &config) { svi318(config); TMS9928A(config, m_vdp, XTAL(10'738'635)).set_screen("screen"); m_vdp->set_vram_size(0x4000); m_vdp->int_callback().set(FUNC(svi3x8_state::intvdp_w)); SCREEN(config, "screen", SCREEN_TYPE_RASTER); } void svi3x8_state::svi328p(machine_config &config) { svi318p(config); m_ram->set_default_size("64K"); } void svi3x8_state::svi328n(machine_config &config) { svi318n(config); m_ram->set_default_size("64K"); } //************************************************************************** // ROM DEFINITIONS //************************************************************************** // note: should be split into two 16k chips, document differenes ROM_START( svi318 ) ROM_REGION(0x8000, "basic", 0) ROM_SYSTEM_BIOS(0, "v111", "SV BASIC v1.11") ROMX_LOAD("svi111.rom", 0x0000, 0x8000, CRC(bc433df6) SHA1(10349ce675f6d6d47f0976e39cb7188eba858d89), ROM_BIOS(0)) ROM_SYSTEM_BIOS(1, "v11", "SV BASIC v1.1") ROMX_LOAD("svi110.rom", 0x0000, 0x8000, CRC(709904e9) SHA1(7d8daf52f78371ca2c9443e04827c8e1f98c8f2c), ROM_BIOS(1)) ROM_SYSTEM_BIOS(2, "v10", "SV BASIC v1.0") ROMX_LOAD("svi100.rom", 0x0000, 0x8000, CRC(98d48655) SHA1(07758272df475e5e06187aa3574241df1b14035b), ROM_BIOS(2)) ROM_END #define rom_svi318n rom_svi318 #define rom_svi328 rom_svi318 #define rom_svi328n rom_svi318 //************************************************************************** // SYSTEM DRIVERS //************************************************************************** // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1983, svi318, 0, 0, svi318p, svi318, svi3x8_state, empty_init, "Spectravideo", "SVI-318 (PAL)", MACHINE_SUPPORTS_SAVE ) COMP( 1983, svi318n, svi318, 0, svi318n, svi318, svi3x8_state, empty_init, "Spectravideo", "SVI-318 (NTSC)", MACHINE_SUPPORTS_SAVE ) COMP( 1983, svi328, 0, 0, svi328p, svi328, svi3x8_state, empty_init, "Spectravideo", "SVI-328 (PAL)", MACHINE_SUPPORTS_SAVE ) COMP( 1983, svi328n, svi328, 0, svi328n, svi328, svi3x8_state, empty_init, "Spectravideo", "SVI-328 (NTSC)", MACHINE_SUPPORTS_SAVE )