/***************************************************************************
Video Technology Laser 110
Video Technology Laser 200
Salora Fellow
Texet TX-8000 (?)
Video Technology VZ-200
Video Technology Laser 210
Dick Smith Electronics VZ-200
Video Technology Laser 310
Dick Smith Electronics VZ-300
license: MAME
copyright-holders: Juergen Buchmueller, Dirk Best
Thanks go to:
- Guy Thomason
- Jason Oakley
- Bushy Maunder
- and anybody else on the vzemu list :)
- Davide Moretti for the detailed description of the colors
- Leslie Milburn
Todo:
- Figure out which machines were shipped with which ROM version
where not known (currently only a guess)
- Lightpen support
- Rewrite floppy
***************************************************************************/
#include "emu.h"
#include "formats/imageutl.h"
#include "cpu/z80/z80.h"
#include "video/mc6847.h"
#include "bus/vtech/ioexp/ioexp.h"
#include "bus/vtech/memexp/memexp.h"
#include "sound/wave.h"
#include "sound/speaker.h"
#include "imagedev/snapquik.h"
#include "imagedev/cassette.h"
#include "formats/vt_cas.h"
/***************************************************************************
CONSTANTS & MACROS
***************************************************************************/
#define LOG_VTECH1_LATCH 0
#define VTECH1_CLK 3579500
#define VZ300_XTAL1_CLK XTAL_17_73447MHz
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
class vtech1_state : public driver_device
{
public:
vtech1_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_maincpu(*this, "maincpu"),
m_mc6847(*this, "mc6847"),
m_speaker(*this, "speaker"),
m_cassette(*this, "cassette"),
m_ioexp(*this, "io"),
m_memexp(*this, "mem")
{
}
DECLARE_DRIVER_INIT(vtech1);
DECLARE_DRIVER_INIT(vtech1h);
DECLARE_READ8_MEMBER(vtech1_lightpen_r);
DECLARE_READ8_MEMBER(vtech1_keyboard_r);
DECLARE_WRITE8_MEMBER(vtech1_latch_w);
DECLARE_WRITE8_MEMBER(vtech1_video_bank_w);
DECLARE_READ8_MEMBER(mc6847_videoram_r);
DECLARE_SNAPSHOT_LOAD_MEMBER( vtech1 );
private:
static const UINT8 VZ_BASIC = 0xf0;
static const UINT8 VZ_MCODE = 0xf1;
required_shared_ptr<UINT8> m_videoram;
required_device<cpu_device> m_maincpu;
required_device<mc6847_base_device> m_mc6847;
required_device<speaker_sound_device> m_speaker;
required_device<cassette_image_device> m_cassette;
required_device<ioexp_slot_device> m_ioexp;
required_device<memexp_slot_device> m_memexp;
};
/***************************************************************************
SNAPSHOT LOADING
***************************************************************************/
SNAPSHOT_LOAD_MEMBER( vtech1_state, vtech1 )
{
address_space &space = m_maincpu->space(AS_PROGRAM);
UINT8 header[24];
char pgmname[18];
// get the header
image.fread(&header, sizeof(header));
// get image name
for (int i = 0; i < 16; i++)
pgmname[i] = header[i+4];
pgmname[16] = '\0';
// get start and end addresses
UINT16 start = pick_integer_le(header, 22, 2);
UINT16 end = start + snapshot_size - sizeof(header);
UINT16 size = end - start;
// write it to ram
UINT8 *ptr = (UINT8 *)image.ptr() + sizeof(header);
for (UINT16 addr = start; addr <= end; addr++, ptr++)
{
UINT8 to_write = *ptr;
space.write_byte(addr, to_write);
// verify
if (space.read_byte(addr) != to_write)
{
image.seterror(IMAGE_ERROR_INVALIDIMAGE, "Insufficient RAM to load snapshot");
image.message("Insufficient RAM to load snapshot (%d bytes needed) [%s]", size, pgmname);
return IMAGE_INIT_FAIL;
}
}
// patch variables depending on snapshot type
switch (header[21])
{
case VZ_BASIC:
space.write_byte(0x78a4, start % 256); /* start of basic program */
space.write_byte(0x78a5, start / 256);
space.write_byte(0x78f9, end % 256); /* end of basic program */
space.write_byte(0x78fa, end / 256);
space.write_byte(0x78fb, end % 256); /* start variable table */
space.write_byte(0x78fc, end / 256);
space.write_byte(0x78fd, end % 256); /* start free mem, end variable table */
space.write_byte(0x78fe, end / 256);
image.message(" %s (B)\nsize=%04X : start=%04X : end=%04X", pgmname, size, start, end);
break;
case VZ_MCODE:
space.write_byte(0x788e, start % 256); /* usr subroutine address */
space.write_byte(0x788f, start / 256);
image.message(" %s (M)\nsize=%04X : start=%04X : end=%04X", pgmname, size, start, end);
m_maincpu->set_pc(start); /* start program */
break;
default:
image.seterror(IMAGE_ERROR_UNSUPPORTED, "Snapshot format not supported.");
image.message("Snapshot format not supported.");
return IMAGE_INIT_FAIL;
}
return IMAGE_INIT_PASS;
}
/***************************************************************************
INPUTS
***************************************************************************/
READ8_MEMBER( vtech1_state::vtech1_lightpen_r )
{
logerror("vtech1_lightpen_r(%d)\n", offset);
return 0xff;
}
READ8_MEMBER( vtech1_state::vtech1_keyboard_r )
{
UINT8 result = 0x3f;
// bit 0 to 5, keyboard input
if (!BIT(offset, 0)) result &= ioport("keyboard_0")->read();
if (!BIT(offset, 1)) result &= ioport("keyboard_1")->read();
if (!BIT(offset, 2)) result &= ioport("keyboard_2")->read();
if (!BIT(offset, 3)) result &= ioport("keyboard_3")->read();
if (!BIT(offset, 4)) result &= ioport("keyboard_4")->read();
if (!BIT(offset, 5)) result &= ioport("keyboard_5")->read();
if (!BIT(offset, 6)) result &= ioport("keyboard_6")->read();
if (!BIT(offset, 7)) result &= ioport("keyboard_7")->read();
// bit 6, cassette input
result |= ((m_cassette->input()) > 0 ? 1 : 0) << 6;
// bit 7, field sync
result |= m_mc6847->fs_r() << 7;
return result;
}
/***************************************************************************
I/O LATCH
***************************************************************************/
WRITE8_MEMBER( vtech1_state::vtech1_latch_w )
{
if (LOG_VTECH1_LATCH)
logerror("vtech1_latch_w $%02X\n", data);
// bit 1, SHRG mod (if installed)
if (m_videoram.bytes() == 0x2000)
{
m_mc6847->gm0_w(BIT(data, 1));
m_mc6847->gm2_w(BIT(data, 1));
}
// bit 2, cassette out
m_cassette->output( BIT(data, 2) ? +1.0 : -1.0);
// bit 3 and 4, vdc mode control lines
m_mc6847->ag_w(BIT(data, 3));
m_mc6847->css_w(BIT(data, 4));
// bit 0 and 5, speaker
m_speaker->level_w((BIT(data, 5) << 1) | BIT(data, 0));
}
/***************************************************************************
MEMORY BANKING
***************************************************************************/
WRITE8_MEMBER( vtech1_state::vtech1_video_bank_w )
{
membank("bank4")->set_entry(data & 0x03);
}
/***************************************************************************
VIDEO EMULATION
***************************************************************************/
READ8_MEMBER( vtech1_state::mc6847_videoram_r )
{
if (offset == ~0) return 0xff;
m_mc6847->inv_w(BIT(m_videoram[offset], 6));
m_mc6847->as_w(BIT(m_videoram[offset], 7));
return m_videoram[offset];
}
/***************************************************************************
DRIVER INIT
***************************************************************************/
DRIVER_INIT_MEMBER( vtech1_state, vtech1 )
{
// setup expansion slots
m_ioexp->set_io_space(&m_maincpu->space(AS_IO));
m_memexp->set_program_space(&m_maincpu->space(AS_PROGRAM));
m_memexp->set_io_space(&m_maincpu->space(AS_IO));
}
DRIVER_INIT_MEMBER( vtech1_state, vtech1h )
{
DRIVER_INIT_CALL(vtech1);
// the SHRG mod replaces the standard videoram chip with an 8k chip
m_videoram.allocate(0x2000);
m_maincpu->space(AS_PROGRAM).install_readwrite_bank(0x7000, 0x77ff, "bank4");
membank("bank4")->configure_entries(0, 4, m_videoram, 0x800);
membank("bank4")->set_entry(0);
}
/***************************************************************************
ADDRESS MAPS
***************************************************************************/
static ADDRESS_MAP_START( laser110_mem, AS_PROGRAM, 8, vtech1_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM // basic rom
AM_RANGE(0x6800, 0x6fff) AM_READWRITE(vtech1_keyboard_r, vtech1_latch_w)
AM_RANGE(0x7000, 0x77ff) AM_RAM AM_SHARE("videoram") // 6847
AM_RANGE(0x7800, 0x7fff) AM_RAM // 2k user ram
ADDRESS_MAP_END
static ADDRESS_MAP_START( laser210_mem, AS_PROGRAM, 8, vtech1_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM // basic rom
AM_RANGE(0x6800, 0x6fff) AM_READWRITE(vtech1_keyboard_r, vtech1_latch_w)
AM_RANGE(0x7000, 0x77ff) AM_RAM AM_SHARE("videoram") // 6847
AM_RANGE(0x7800, 0x8fff) AM_RAM // 6k user ram
ADDRESS_MAP_END
static ADDRESS_MAP_START( laser310_mem, AS_PROGRAM, 8, vtech1_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM // basic rom
AM_RANGE(0x6800, 0x6fff) AM_READWRITE(vtech1_keyboard_r, vtech1_latch_w)
AM_RANGE(0x7000, 0x77ff) AM_RAM AM_SHARE("videoram") // 6847
AM_RANGE(0x7800, 0xb7ff) AM_RAM // 16k user ram
ADDRESS_MAP_END
static ADDRESS_MAP_START( vtech1_io, AS_IO, 8, vtech1_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x40, 0x4f) AM_READ(vtech1_lightpen_r)
ADDRESS_MAP_END
static ADDRESS_MAP_START( vtech1_shrg_io, AS_IO, 8, vtech1_state )
AM_IMPORT_FROM(vtech1_io)
AM_RANGE(0xd0, 0xdf) AM_WRITE(vtech1_video_bank_w)
ADDRESS_MAP_END
/***************************************************************************
INPUT PORTS
***************************************************************************/
static INPUT_PORTS_START(vtech1)
PORT_START("keyboard_0")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R RETURN LEFT$") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q FOR CHR$") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E NEXT LEN(") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W TO VAL(") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T THEN MID$") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
PORT_START("keyboard_1")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F GOSUB RND(") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A MODE( ASC(") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D DIM RESTORE") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S STEP STR$(") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G GOTO STOP") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
PORT_START("keyboard_2")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V LPRINT USR") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z PEEK( INP") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C CONT COPY") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X POKE OUT") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B LLIST SOUND") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_START("keyboard_3")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 $ VERIFY ATN(") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 ! CSAVE SIN(") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 # CRUN TAN(") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 \" CLOAD COS(") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 % LIST LOG(") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
PORT_START("keyboard_4")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M \\ \xE2\x86\x90") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('\\') PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE \xE2\x86\x93") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_CHAR('~') PORT_CHAR(UCHAR_MAMEKEY(DOWN))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", < \xE2\x86\x92") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(". > \xE2\x86\x91") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N ^ COLOR USING") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('^')
PORT_START("keyboard_5")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 ' END SGN(") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 @ DATA INT(") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('@')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 ( NEW SQR(") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- = [Break]") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') PORT_CHAR(UCHAR_MAMEKEY(CANCEL))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 ) READ ABS(") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 & RUN EXP(") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
PORT_START("keyboard_6")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U IF INKEY$") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P ] PRINT NOT") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR(']')
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I INPUT AND") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RETURN [Function]") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O [ LET OR") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('[')
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y ELSE RIGHT$(") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
PORT_START("keyboard_7")
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J REM RESET") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("; + [Rubout]") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+') PORT_CHAR(UCHAR_MAMEKEY(DEL))
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K / TAB( POINT") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('/')
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": * [Inverse]") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*') PORT_CHAR(UCHAR_MAMEKEY(HOME))
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L ? [Insert]") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('?') PORT_CHAR(UCHAR_MAMEKEY(INSERT))
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H CLS SET") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
/* Enhanced options not available on real hardware */
PORT_START("CONFIG")
PORT_CONFNAME( 0x01, 0x01, "Autorun on Quickload")
PORT_CONFSETTING( 0x00, DEF_STR(No))
PORT_CONFSETTING( 0x01, DEF_STR(Yes))
// PORT_CONFNAME( 0x08, 0x08, "Cassette Speaker")
// PORT_CONFSETTING( 0x08, DEF_STR(On))
// PORT_CONFSETTING( 0x00, DEF_STR(Off))
INPUT_PORTS_END
/***************************************************************************
MACHINE DRIVERS
***************************************************************************/
static const INT16 speaker_levels[] = {-32768, 0, 32767, 0};
static const speaker_interface vtech1_speaker_interface =
{
4,
speaker_levels
};
static MACHINE_CONFIG_START( laser110, vtech1_state )
// basic machine hardware
MCFG_CPU_ADD("maincpu", Z80, VTECH1_CLK) /* 3.57950 MHz */
MCFG_CPU_PROGRAM_MAP(laser110_mem)
MCFG_CPU_IO_MAP(vtech1_io)
// video hardware
MCFG_SCREEN_MC6847_PAL_ADD("screen", "mc6847")
MCFG_DEVICE_ADD("mc6847", MC6847_PAL, XTAL_4_433619MHz)
MCFG_MC6847_FSYNC_CALLBACK(INPUTLINE("maincpu", 0)) MCFG_DEVCB_INVERT
MCFG_MC6847_INPUT_CALLBACK(READ8(vtech1_state, mc6847_videoram_r))
MCFG_MC6847_BW(true)
MCFG_MC6847_FIXED_MODE(MC6847_MODE_GM1)
// GM2 = GND, GM0 = GND, INTEXT = GND
// other lines not connected
// sound hardware
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette")
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_CONFIG(vtech1_speaker_interface)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.75)
// peripheral and memory expansion slots
MCFG_IOEXP_SLOT_ADD("io")
MCFG_MEMEXP_SLOT_ADD("mem")
// snapshot
MCFG_SNAPSHOT_ADD("snapshot", vtech1_state, vtech1, "vz", 1.5)
MCFG_CASSETTE_ADD( "cassette" )
MCFG_CASSETTE_FORMATS(vtech1_cassette_formats)
MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( laser200, laser110 )
MCFG_DEVICE_REMOVE("mc6847")
MCFG_DEVICE_ADD("mc6847", MC6847_PAL, XTAL_4_433619MHz)
MCFG_MC6847_FSYNC_CALLBACK(INPUTLINE("maincpu", 0)) MCFG_DEVCB_INVERT
MCFG_MC6847_INPUT_CALLBACK(READ8(vtech1_state, mc6847_videoram_r))
MCFG_MC6847_FIXED_MODE(MC6847_MODE_GM1)
// GM2 = GND, GM0 = GND, INTEXT = GND
// other lines not connected
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( laser210, laser200 )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(laser210_mem)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( laser310, laser200 )
MCFG_CPU_REPLACE("maincpu", Z80, VZ300_XTAL1_CLK / 5) /* 3.546894 MHz */
MCFG_CPU_PROGRAM_MAP(laser310_mem)
MCFG_CPU_IO_MAP(vtech1_io)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( laser310h, laser310 )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_IO_MAP(vtech1_shrg_io)
MCFG_DEVICE_REMOVE("mc6847")
MCFG_DEVICE_ADD("mc6847", MC6847_PAL, XTAL_4_433619MHz)
MCFG_MC6847_FSYNC_CALLBACK(INPUTLINE("maincpu", 0)) MCFG_DEVCB_INVERT
MCFG_MC6847_INPUT_CALLBACK(READ8(vtech1_state, mc6847_videoram_r))
MCFG_MC6847_FIXED_MODE(MC6847_MODE_GM1)
// INTEXT = GND
// other lines not connected
MACHINE_CONFIG_END
/***************************************************************************
ROM DEFINITIONS
***************************************************************************/
ROM_START( laser110 )
ROM_REGION(0x4000, "maincpu", 0)
ROM_LOAD("vtechv12.u09", 0x0000, 0x2000, CRC(99412d43) SHA1(6aed8872a0818be8e1b08ecdfd92acbe57a3c96d))
ROM_LOAD("vtechv12.u10", 0x2000, 0x2000, CRC(e4c24e8b) SHA1(9d8fb3d24f3d4175b485cf081a2d5b98158ab2fb))
ROM_END
// The VZ-200 sold in Germany and the Netherlands came with BASIC V1.1, which is currently not dumped.
ROM_START( vz200de )
ROM_REGION(0x4000, "maincpu", 0)
ROM_LOAD("vtechv11.u09", 0x0000, 0x2000, NO_DUMP)
ROM_LOAD("vtechv11.u10", 0x2000, 0x2000, NO_DUMP)
ROM_END
#define rom_las110de rom_laser110
#define rom_laser200 rom_laser110
#define rom_fellow rom_laser110
// It's possible that the Texet TX-8000 came with BASIC V1.0, but this needs to be verified
#define rom_tx8000 rom_laser110
ROM_START( laser210 )
ROM_REGION(0x4000, "maincpu", 0)
ROM_LOAD("vtechv20.u09", 0x0000, 0x2000, CRC(cc854fe9) SHA1(6e66a309b8e6dc4f5b0b44e1ba5f680467353d66))
ROM_LOAD("vtechv20.u10", 0x2000, 0x2000, CRC(7060f91a) SHA1(8f3c8f24f97ebb98f3c88d4e4ba1f91ffd563440))
ROM_END
#define rom_las210de rom_laser210
#define rom_vz200 rom_laser210
ROM_START( laser310 )
ROM_REGION(0x4000, "maincpu", 0)
ROM_SYSTEM_BIOS(0, "basic20", "BASIC V2.0")
ROMX_LOAD("vtechv20.u12", 0x0000, 0x4000, CRC(613de12c) SHA1(f216c266bc09b0dbdbad720796e5ea9bc7d91e53), ROM_BIOS(1))
ROM_SYSTEM_BIOS(1, "basic21", "BASIC V2.1 (hack)")
ROMX_LOAD("vtechv21.u12", 0x0000, 0x4000, CRC(f7df980f) SHA1(5ba14a7a2eedca331b033901080fa5d205e245ea), ROM_BIOS(2))
ROM_END
#define rom_vz300 rom_laser310
#define rom_laser310h rom_laser310
/***************************************************************************
GAME DRIVERS
***************************************************************************/
// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
COMP( 1983, laser110, 0, 0, laser110, vtech1, vtech1_state, vtech1, "Video Technology", "Laser 110", 0 )
COMP( 1983, laser200, 0, 0, laser200, vtech1, vtech1_state, vtech1, "Video Technology", "Laser 200", 0 )
COMP( 1983, vz200de, laser200, 0, laser200, vtech1, vtech1_state, vtech1, "Video Technology", "VZ-200 (Germany & Netherlands)", 0 )
COMP( 1983, fellow, laser200, 0, laser200, vtech1, vtech1_state, vtech1, "Salora", "Fellow (Finland)", 0 )
COMP( 1983, tx8000, laser200, 0, laser200, vtech1, vtech1_state, vtech1, "Texet", "TX-8000 (UK)", 0 )
COMP( 1984, laser210, 0, 0, laser210, vtech1, vtech1_state, vtech1, "Video Technology", "Laser 210", 0 )
COMP( 1984, vz200, laser210, 0, laser210, vtech1, vtech1_state, vtech1, "Dick Smith Electronics", "VZ-200 (Oceania)", 0 )
COMP( 1984, laser310, 0, 0, laser310, vtech1, vtech1_state, vtech1, "Video Technology", "Laser 310", 0 )
COMP( 1984, vz300, laser310, 0, laser310, vtech1, vtech1_state, vtech1, "Dick Smith Electronics", "VZ-300 (Oceania)", 0 )
COMP( 1984, laser310h, laser310, 0, laser310h, vtech1, vtech1_state, vtech1h, "Video Technology", "Laser 310 (SHRG)", GAME_UNOFFICIAL)