// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Sega SK-1100 keyboard emulation Release data from the Sega Retro project: Year: 1984 Country/region: JP Model code: SK-1100 TODO: - SP-400 serial printer - Link between two Mark III's through keyboard, supported by F-16 Fighting Falcon **********************************************************************/ #include "sk1100.h" #include "softlist.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type SEGA_SK1100 = &device_creator; /*------------------------------------------------- INPUT_PORTS( sk1100_keys ) -------------------------------------------------*/ static INPUT_PORTS_START( sk1100_keys ) PORT_START("PA0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') 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_A) PORT_CHAR('A') PORT_CHAR('a') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ENG DIER'S") PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(RALT)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') PORT_START("PA1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SPC") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') PORT_START("PA2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') 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_NAME("HOME CLR") PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') PORT_START("PA3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("INS DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_SMALL_PI) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR(0x03c0) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR('`') PORT_START("PA4") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_CHAR('}') PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_CHAR('{') PORT_START("PA5") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') 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_H) PORT_CHAR('H') PORT_CHAR('h') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CR") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PA6") 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_U) PORT_CHAR('U') PORT_CHAR('u') PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB3") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB4") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('^') PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("PB5") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xc2\xa5") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x00a5) PORT_BIT( 0x06, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("FUNC") PORT_CODE(KEYCODE_TAB) PORT_START("PB6") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("GRAPH") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor sega_sk1100_device::device_input_ports() const { return INPUT_PORTS_NAME( sk1100_keys ); } static MACHINE_CONFIG_FRAGMENT( sk1100_config ) /* devices */ MCFG_DEVICE_ADD(UPD9255_0_TAG, I8255, 0) MCFG_I8255_IN_PORTA_CB(READ8(sega_sk1100_device, ppi_pa_r)) MCFG_I8255_IN_PORTB_CB(READ8(sega_sk1100_device, ppi_pb_r)) MCFG_I8255_OUT_PORTC_CB(WRITE8(sega_sk1100_device, ppi_pc_w)) // MCFG_PRINTER_ADD("sp400") /* serial printer */ MCFG_CASSETTE_ADD("cassette") MCFG_CASSETTE_FORMATS(sc3000_cassette_formats) MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED) MCFG_CASSETTE_INTERFACE("sc3000_cass") /* software lists */ MCFG_SOFTWARE_LIST_ADD("sc3k_cart_list","sc3000_cart") MCFG_SOFTWARE_LIST_ADD("cass_list","sc3000_cass") MACHINE_CONFIG_END machine_config_constructor sega_sk1100_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( sk1100_config ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // sega_sk1100_device - constructor //------------------------------------------------- sega_sk1100_device::sega_sk1100_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, SEGA_SK1100, "Sega SK-1100 Keyboard", tag, owner, clock, "sega_sk1100", __FILE__), device_sg1000_expansion_slot_interface(mconfig, *this), m_cassette(*this, "cassette"), m_ppi(*this, UPD9255_0_TAG), m_pa0(*this, "PA0"), m_pa1(*this, "PA1"), m_pa2(*this, "PA2"), m_pa3(*this, "PA3"), m_pa4(*this, "PA4"), m_pa5(*this, "PA5"), m_pa6(*this, "PA6"), m_pb0(*this, "PB0"), m_pb1(*this, "PB1"), m_pb2(*this, "PB2"), m_pb3(*this, "PB3"), m_pb4(*this, "PB4"), m_pb5(*this, "PB5"), m_pb6(*this, "PB6"), m_keylatch(0) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void sega_sk1100_device::device_start() { // find keyboard rows m_key_row[0] = m_pa0; m_key_row[1] = m_pa1; m_key_row[2] = m_pa2; m_key_row[3] = m_pa3; m_key_row[4] = m_pa4; m_key_row[5] = m_pa5; m_key_row[6] = m_pa6; m_key_row[7] = nullptr; // keyboard disabled m_key_row[8] = m_pb0; m_key_row[9] = m_pb1; m_key_row[10] = m_pb2; m_key_row[11] = m_pb3; m_key_row[12] = m_pb4; m_key_row[13] = m_pb5; m_key_row[14] = m_pb6; m_key_row[15] = nullptr; // keyboard disabled /* register for state saving */ save_item(NAME(m_keylatch)); } //------------------------------------------------- // peripheral_r - keyboard read //------------------------------------------------- READ8_MEMBER(sega_sk1100_device::peripheral_r) { return m_ppi->read(space, offset & 0x03); } //------------------------------------------------- // peripheral_w - keyboard write //------------------------------------------------- WRITE8_MEMBER(sega_sk1100_device::peripheral_w) { m_ppi->write(space, offset & 0x03, data); } bool sega_sk1100_device::is_readable(UINT8 offset) { return (m_keylatch != 0x07 ? true : false); } /*------------------------------------------------- I8255 INTERFACE -------------------------------------------------*/ READ8_MEMBER( sega_sk1100_device::ppi_pa_r ) { /* Signal Description PA0 Keyboard input PA1 Keyboard input PA2 Keyboard input PA3 Keyboard input PA4 Keyboard input PA5 Keyboard input PA6 Keyboard input PA7 Keyboard input */ return m_key_row[m_keylatch]->read(); } READ8_MEMBER( sega_sk1100_device::ppi_pb_r ) { /* Signal Description PB0 Keyboard input PB1 Keyboard input PB2 Keyboard input PB3 Keyboard input PB4 /CONT input from cartridge terminal B-11 PB5 FAULT input from printer PB6 BUSY input from printer PB7 Cassette tape input */ /* keyboard */ UINT8 data = m_key_row[m_keylatch + 8]->read(); /* cartridge contact */ data |= 0x10; /* printer */ data |= 0x60; /* tape input */ if (m_cassette->input() > +0.0) data |= 0x80; return data; } WRITE8_MEMBER( sega_sk1100_device::ppi_pc_w ) { /* Signal Description PC0 Keyboard raster output PC1 Keyboard raster output PC2 Keyboard raster output PC3 not connected PC4 Cassette tape output PC5 DATA to printer PC6 /RESET to printer PC7 /FEED to printer */ /* keyboard */ m_keylatch = data & 0x07; /* cassette */ m_cassette->output( BIT(data, 4) ? +1.0 : -1.0); /* TODO printer */ }