// 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<sega_sk1100_device>;
/*-------------------------------------------------
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 */
}