// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/***************************************************************************
VTech Laser PC4
Driver by Sandro Ronco
I found no documentations about this, if you have documentation or schematic
please let me know.
Notes:
- the LCD controller seems similar to a HD44780, but with more ddram and
uses the bit 0 and 2 of the "Function Set" (0x2?) that are unused in
the specifications of the HD44780 datasheet.
- INT and NMI interrupt lines cause "LOW BATTERY" signal
- chargen are taken from other driver, a real dump is required
More info:
http://www.8bit-micro.com/laser.htm
http://www.euskalnet.net/ingepal/images/Vtech_Laser_PC4_1988.jpg
http://www.oldcomputermuseum.com/laser_pc4.html
****************************************************************************/
#include "emu.h"
#include "includes/pc4.h"
#include "cpu/z80/z80.h"
#include "machine/rp5c01.h"
#include "screen.h"
#include "speaker.h"
READ8_MEMBER( pc4_state::kb_r )
{
uint8_t data = 0xff;
for (int line=0; line<8; line++)
{
if (!(offset & (1<<line)))
{
data &= io_port[line]->read();
}
}
return data;
}
WRITE8_MEMBER( pc4_state::bank_w )
{
//printf("set bank %x\n", data);
m_rombank->set_entry(data&0x07);
}
WRITE8_MEMBER( pc4_state::beep_w )
{
m_beep->set_state(data&0x40);
}
void pc4_state::pc4_mem(address_map &map)
{
map(0x0000, 0x3fff).rom();
map(0x4000, 0x7fff).bankr("rombank");
map(0x8000, 0xffff).ram();
}
void pc4_state::pc4_io(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x000f).rw("rtc", FUNC(rp5c01_device::read), FUNC(rp5c01_device::write));
map(0x1000, 0x1000).w(FUNC(pc4_state::beep_w));
map(0x1fff, 0x1fff).w(FUNC(pc4_state::bank_w));
map(0x3000, 0x3000).w(FUNC(pc4_state::lcd_control_w));
map(0x3001, 0x3001).w(FUNC(pc4_state::lcd_data_w));
map(0x3002, 0x3002).r(FUNC(pc4_state::lcd_control_r));
map(0x3003, 0x3003).r(FUNC(pc4_state::lcd_data_r));
map(0x3005, 0x3005).w(FUNC(pc4_state::lcd_offset_w));
//keyboard read, offset used as matrix
map(0x5000, 0x50ff).r(FUNC(pc4_state::kb_r));
}
static INPUT_PORTS_START( pc4 )
PORT_START("LINE0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('/')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPSLOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('?')
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("[") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
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("D") PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("'") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('\"')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(UCHAR_MAMEKEY(DEL))
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE5")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
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("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE6")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
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("H") PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('+')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("LINE7")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("NUMLOck") PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
INPUT_PORTS_END
void pc4_state::pc4_palette(palette_device &palette) const
{
palette.set_pen_color(0, rgb_t(138, 146, 148));
palette.set_pen_color(1, rgb_t(92, 83, 88));
}
static const gfx_layout pc4_charlayout =
{
5, 8, /* 5 x 8 characters */
256, /* 256 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
{ 3, 4, 5, 6, 7},
{ 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8},
8*8 /* 8 bytes */
};
static GFXDECODE_START( gfx_pc4 )
GFXDECODE_ENTRY( "charset", 0x0000, pc4_charlayout, 0, 1 )
GFXDECODE_END
void pc4_state::machine_start()
{
static const char *const bitnames[] = {"LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7"};
uint8_t* rom_base = (uint8_t *)memregion("maincpu")->base();
m_rombank->configure_entries(0, 8, rom_base, 0x4000);
m_rombank->set_entry(0);
m_busy_timer = timer_alloc(BUSY_TIMER);
m_blink_timer = timer_alloc(BLINKING_TIMER);
m_blink_timer->adjust(attotime::from_msec(409), 0, attotime::from_msec(409));
for (int i=0; i<8; i++)
{
io_port[i] = ioport(bitnames[i]);
}
m_ac = 0;
m_ac_mode = 0;
m_data_bus_flag = 0;
m_cursor_pos = 0;
m_display_on = 0;
m_cursor_on = 0;
m_shift_on = 0;
m_blink_on = 0;
m_direction = 1;
m_disp_shift = 0;
m_blink = 0;
}
void pc4_state::pc4(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(4'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &pc4_state::pc4_mem);
m_maincpu->set_addrmap(AS_IO, &pc4_state::pc4_io);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
screen.set_refresh_hz(72);
screen.set_screen_update(FUNC(pc4_state::screen_update));
screen.set_size(240, 36);
screen.set_visarea(0, 240-1, 0, 36-1);
screen.set_palette("palette");
PALETTE(config, "palette", FUNC(pc4_state::pc4_palette), 2);
GFXDECODE(config, "gfxdecode", "palette", gfx_pc4);
/* sound hardware */
SPEAKER(config, "mono").front_center();
BEEP(config, m_beep, 3250).add_route(ALL_OUTPUTS, "mono", 1.00);
RP5C01(config, "rtc", XTAL(32'768));
}
ROM_START( pc4 )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_LOAD( "laser pc4 v4.14a.u2", 0x00000, 0x20000, CRC(f8dabf5d) SHA1(6988517b3ccb42df2b8d6e1517ff04b24458d146) )
ROM_REGION( 0x0860, "charset", ROMREGION_ERASE )
ROM_LOAD( "44780a00.bin", 0x0000, 0x0860, BAD_DUMP CRC(3a89024c) SHA1(5a87b68422a916d1b37b5be1f7ad0b3fb3af5a8d))
ROM_END
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1990, pc4, 0, 0, pc4, pc4, pc4_state, empty_init, "Laser Computer", "Laser PC4", MACHINE_NOT_WORKING )