diff options
Diffstat (limited to 'src/mame/handheld/hh_e0c6200.cpp')
-rw-r--r-- | src/mame/handheld/hh_e0c6200.cpp | 597 |
1 files changed, 597 insertions, 0 deletions
diff --git a/src/mame/handheld/hh_e0c6200.cpp b/src/mame/handheld/hh_e0c6200.cpp new file mode 100644 index 00000000000..bf8d292d59b --- /dev/null +++ b/src/mame/handheld/hh_e0c6200.cpp @@ -0,0 +1,597 @@ +// license:BSD-3-Clause +// copyright-holders:hap +// thanks-to:digshadow, Segher, azya +/******************************************************************************* + +Seiko Epson E0C6200-based handhelds, mostly electronic keychain toys from the +late-1990s. The first Tamagotchi games are on this MCU. + +These were meant to stay on 24/7, so make sure to use save states if you want +to play the games for a longer time or remember high scores. + +For most of the games, external artwork is required for the background inlays. +For the drivers that don't have an SVG screen, use -prescale or -nofilter to +disable bilinear filtering. + +TODO: +- in stackch, you can still move around when the game is paused, maybe BTANB? +- digimon external port is unemulated +- alienfev unmapped reads/writes, or are they harmless? +- SVGs could be more accurate? Instead of 1:1 scans like with Game & Watch, + they were created by tracing segments by hand from macro photos +- redo tamamot SVG, LCD was not available and azya redrew it from online photos +- add LCD deflicker like hh_sm510? see venusdm for example +- hook up LCD contrast, stackch and alienfev support user-defined contrast, + but it doesn't look like any game uses it for eg. fade-out + +*******************************************************************************/ + +#include "emu.h" + +#include "cpu/e0c6200/e0c6s46.h" +#include "sound/spkrdev.h" + +#include "emupal.h" +#include "screen.h" +#include "speaker.h" + +// internal artwork +#include "hh_e0c6200_lcd.lh" + + +namespace { + +class hh_e0c6200_state : public driver_device +{ +public: + hh_e0c6200_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_out_x(*this, "%u.%u", 0U, 0U) + { } + + DECLARE_INPUT_CHANGED_MEMBER(input_changed); + DECLARE_INPUT_CHANGED_MEMBER(reset_button); + +protected: + virtual void machine_start() override ATTR_COLD; + + void lcd_segment_w(offs_t offset, u8 data) { m_out_x[offset & 0xf][offset >> 4] = data; } + + required_device<e0c6s46_device> m_maincpu; + output_finder<16, 51> m_out_x; // max 16 * 51 +}; + +void hh_e0c6200_state::machine_start() +{ + m_out_x.resolve(); +} + + + +/******************************************************************************* + + Helper Functions + +*******************************************************************************/ + +// generic input handlers + +#define PORT_CHANGED_CB(x) \ + PORT_CHANGED_MEMBER(DEVICE_SELF, FUNC(hh_e0c6200_state::input_changed), E0C6S46_LINE_K00 + x) + +INPUT_CHANGED_MEMBER(hh_e0c6200_state::input_changed) +{ + // inputs are hooked up backwards here, because MCU input ports are all tied to its interrupt controller + m_maincpu->set_input_line(param, newval ? ASSERT_LINE : CLEAR_LINE); +} + +INPUT_CHANGED_MEMBER(hh_e0c6200_state::reset_button) +{ + // when an input is directly wired to MCU RESET pin + m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? ASSERT_LINE : CLEAR_LINE); +} + + + +/******************************************************************************* + + Minidrivers (subclass, I/O, Inputs, Machine Config, ROM Defs) + +*******************************************************************************/ + +/******************************************************************************* + + Bandai Tamagotchi (Generation 1) + * PCB label: TMG-M1 + * Seiko Epson E0C6S46 MCU under epoxy + * 32*16 LCD screen + 8 custom segments, 1-bit sound + + Generation 2 is on the exact same hardware. It's nearly the same game, they + only changed the graphics. + +*******************************************************************************/ + +class tama_state : public hh_e0c6200_state +{ +public: + tama_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void tama(machine_config &config); +}; + +// inputs + +static INPUT_PORTS_START( tama ) + PORT_START("K0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_CHANGED_CB(0) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_CHANGED_CB(1) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_CB(2) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + +// config + +void tama_state::tama(machine_config &config) +{ + // basic machine hardware + E0C6S46(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + m_maincpu->write_segs().set(FUNC(tama_state::lcd_segment_w)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_SVG)); + screen.set_refresh_hz(60); + screen.set_size(1119, 1080); + screen.set_visarea_full(); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( tama ) + ROM_REGION( 0x3000, "maincpu", 0 ) + ROM_LOAD( "tama.bin", 0x0000, 0x3000, CRC(5c864cb1) SHA1(4b4979cf92dc9d2fb6d7295a38f209f3da144f72) ) + + ROM_REGION( 0x3000, "maincpu:test", 0 ) + ROM_LOAD( "test.bin", 0x0000, 0x3000, CRC(4372220e) SHA1(6e13d015113e16198c0059b9d0c38d7027ae7324) ) // this rom is on the die too, test pin enables it? + + ROM_REGION( 139072, "screen", 0) + ROM_LOAD( "tama.svg", 0, 139072, CRC(9468b964) SHA1(ab49471db21a00a3b3a68da39c40da69da5d7e1b) ) +ROM_END + +ROM_START( tamag2 ) + ROM_REGION( 0x3000, "maincpu", 0 ) + ROM_LOAD( "tamag2.bin", 0x0000, 0x3000, CRC(9f97539e) SHA1(09e5101b37636a314fc599d5d69b4846721b3c88) ) + + ROM_REGION( 139072, "screen", 0) + ROM_LOAD( "tama.svg", 0, 139072, CRC(9468b964) SHA1(ab49471db21a00a3b3a68da39c40da69da5d7e1b) ) +ROM_END + + + + + +/******************************************************************************* + + Bandai Tamagotchi Angel (Tenshitchi no Tamagotchi (aka Angel Gotch) in Japan) + * PCB label: TAL-1, 00-83520-001 + * Seiko Epson E0C6S48 under epoxy + * 32*16 LCD screen + 8 custom segments, 1-bit sound + + Mothra no Tamagotchi is on similar hardware. + +*******************************************************************************/ + +class tamaang_state : public hh_e0c6200_state +{ +public: + tamaang_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void tamaang(machine_config &config); +}; + +// inputs + +static INPUT_PORTS_START( tamaang ) + PORT_INCLUDE( tama ) + + PORT_MODIFY("K0") + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_CHANGED_CB(3) PORT_NAME("Vibration Sensor") +INPUT_PORTS_END + +// config + +void tamaang_state::tamaang(machine_config &config) +{ + // basic machine hardware + E0C6S48(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->set_osc3(1'000'000); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + m_maincpu->write_segs().set(FUNC(tamaang_state::lcd_segment_w)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_SVG)); + screen.set_refresh_hz(60); + screen.set_size(1119, 1080); + screen.set_visarea_full(); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( tamaang ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD( "tamaang.bin", 0x0000, 0x4000, CRC(87bcb59f) SHA1(f5899bb7717756ac581451cf16cf97d909961c5c) ) + + ROM_REGION( 139978, "screen", 0) + ROM_LOAD( "tamaang.svg", 0, 139978, CRC(76f27f06) SHA1(b416275a12173316e053fa994c5fd68a4d5c1a5c) ) +ROM_END + +ROM_START( tamamot ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD( "tamamot.bin", 0x0000, 0x4000, CRC(85e4bee9) SHA1(74c1f6761724b7cbda8bca3113db78586b786d2d) ) + + ROM_REGION( 138289, "screen", 0) + ROM_LOAD( "tamamot.svg", 0, 138289, CRC(4e8210c2) SHA1(522536ae5bf744889c0d028c3a292bdf649f81e3) ) +ROM_END + + + + + +/******************************************************************************* + + Bandai Digital Monster (retroactively called Ver. 1) + * PCB label: TDM-1, 00-83830-001 + * Seiko Epson E0C6S48 MCU under epoxy + * external port, for connecting to another Digimon handheld + * 32*16 LCD screen + 8 custom segments, 1-bit sound + + The sequels (Ver. 2 to Ver. 4) are on the same hardware, and are compatible + with each other for battle mode. + +*******************************************************************************/ + +class digimon_state : public hh_e0c6200_state +{ +public: + digimon_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void digimon(machine_config &config); + +private: + u8 extport_r(); + void extport_w(u8 data); +}; + +// handlers + +u8 digimon_state::extport_r() +{ + // P20: external port data from linked digimon + return 0xf; +} + +void digimon_state::extport_w(u8 data) +{ + // P20: external port data to linked digimon +} + +// inputs + +static INPUT_PORTS_START( digimon ) + PORT_INCLUDE( tama ) + + PORT_START("RESET") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_POWER_ON ) PORT_CHANGED_MEMBER(DEVICE_SELF, FUNC(digimon_state::reset_button), 0) PORT_NAME("Reset") +INPUT_PORTS_END + +// config + +void digimon_state::digimon(machine_config &config) +{ + // basic machine hardware + E0C6S48(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->set_osc3(1'000'000); + m_maincpu->read_p<2>().set(FUNC(digimon_state::extport_r)); + m_maincpu->write_p<2>().set(FUNC(digimon_state::extport_w)); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + m_maincpu->write_segs().set(FUNC(digimon_state::lcd_segment_w)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_SVG)); + screen.set_refresh_hz(60); + screen.set_size(1113, 1080); + screen.set_visarea_full(); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( digimon ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD( "digimon.bin", 0x0000, 0x4000, CRC(08ffac1b) SHA1(1dde9b0aa81c8f4a1e22d3a79d4743833fc6cba7) ) + + ROM_REGION( 158040, "screen", 0) + ROM_LOAD( "digimon.svg", 0, 158040, CRC(0a6ad374) SHA1(e0bafc2c907dbe49e366ff76f2aef622e058f915) ) +ROM_END + +ROM_START( digimonv2 ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD( "digimonv2.bin", 0x0000, 0x4000, CRC(19a9e54e) SHA1(ab860ca9f31f478532122cb9d20f59964a080a27) ) + + ROM_REGION( 158040, "screen", 0) + ROM_LOAD( "digimon.svg", 0, 158040, CRC(0a6ad374) SHA1(e0bafc2c907dbe49e366ff76f2aef622e058f915) ) +ROM_END + +ROM_START( digimonv3 ) + ROM_REGION( 0x4000, "maincpu", 0 ) + ROM_LOAD( "digimonv3.bin", 0x0000, 0x4000, CRC(3000cf30) SHA1(0acd50e623e20d857e13bae150ac03405896cf2b) ) + + ROM_REGION( 158040, "screen", 0) + ROM_LOAD( "digimon.svg", 0, 158040, CRC(0a6ad374) SHA1(e0bafc2c907dbe49e366ff76f2aef622e058f915) ) +ROM_END + + + + + +/******************************************************************************* + + Epoch Chibi Pachi: Alien Fever + * Seiko Epson E0C6S46 MCU + * 39*16 LCD screen, 1-bit sound + + It's a Pachislot keychain game, the MCU constantly runs on the higher-speed OSC3. + +*******************************************************************************/ + +class alienfev_state : public hh_e0c6200_state +{ +public: + alienfev_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void alienfev(machine_config &config); +}; + +// inputs + +static INPUT_PORTS_START( alienfev ) + PORT_START("K0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_CHANGED_CB(0) PORT_NAME("Mode") + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_CHANGED_CB(1) PORT_NAME("Select") + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_VOLUME_DOWN ) PORT_CHANGED_CB(2) PORT_NAME("Sound") + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_CB(3) PORT_NAME("Handle") +INPUT_PORTS_END + +// config + +void alienfev_state::alienfev(machine_config &config) +{ + // basic machine hardware + E0C6S46(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->set_osc3(1'000'000); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); + screen.set_refresh_hz(60); + screen.set_vblank_time(ATTOSECONDS_IN_USEC(0)); + screen.set_size(39, 16); + screen.set_visarea_full(); + screen.set_screen_update(m_maincpu, FUNC(e0c6s46_device::screen_update)); + screen.set_palette("palette"); + + PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( alienfev ) + ROM_REGION( 0x3000, "maincpu", 0 ) + ROM_LOAD( "alienfev.bin", 0x0000, 0x3000, CRC(e561599c) SHA1(7927e198f8989861ba057150e59d1f4ad403c1d2) ) +ROM_END + + + + + +/******************************************************************************* + + Nikko Beans Collection: Venus Diet Monogatari + * Seiko Epson E0C6S46 MCU + * 32*20 LCD screen, 1-bit sound + +*******************************************************************************/ + +class venusdm_state : public hh_e0c6200_state +{ +public: + venusdm_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void venusdm(machine_config &config); + +private: + // reorder pixel coordinates + void pixel_callback(int &dx, int &dy) { int x = dx; dx = dy | (dx / 20) << 4; dy = x % 20; } +}; + +// inputs + +static INPUT_PORTS_START( venusdm ) + PORT_START("K1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_CHANGED_CB(4) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_CHANGED_CB(5) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_CB(6) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + +// config + +void venusdm_state::venusdm(machine_config &config) +{ + // basic machine hardware + E0C6S46(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + m_maincpu->set_pixel_callback(FUNC(venusdm_state::pixel_callback)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); + screen.set_refresh_hz(60); + screen.set_vblank_time(ATTOSECONDS_IN_USEC(0)); + screen.set_size(32, 20); + screen.set_visarea_full(); + screen.set_screen_update(m_maincpu, FUNC(e0c6s46_device::screen_update)); + screen.set_palette("palette"); + + PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( venusdm ) + ROM_REGION( 0x3000, "maincpu", 0 ) + ROM_LOAD( "venusdm.bin", 0x0000, 0x3000, CRC(2228b081) SHA1(22f6a2ede6259e76f1c8b9b50171c54d8a7de502) ) +ROM_END + + + + + +/******************************************************************************* + + Tandy (Radio Shack division) Stack Challenge (model 60-2247) + * Seiko Epson E0C6S46 MCU + * 10*21 LCD screen + custom segments, 1-bit sound + + It's a brick game clone. The game is supposedly from 1991 (it's included in + the 1992 Radio Shack catalog). Did E0C6S46 exist already, or is this a newer + revision? + + BTANB: + - it doesn't allow 2 button presses at the same time, making fast gameplay + impossible (eg. left or right + rotate button) + +*******************************************************************************/ + +class stackch_state : public hh_e0c6200_state +{ +public: + stackch_state(const machine_config &mconfig, device_type type, const char *tag) : + hh_e0c6200_state(mconfig, type, tag) + { } + + void stackch(machine_config &config); +}; + +// inputs + +static INPUT_PORTS_START( stackch ) + PORT_START("K0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_16WAY PORT_CHANGED_CB(0) PORT_NAME("Left / Level") + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_16WAY PORT_CHANGED_CB(1) PORT_NAME("Down / Start") + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_16WAY PORT_CHANGED_CB(2) PORT_NAME("Right / Height") + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_CB(3) PORT_NAME("Rotate / Contrast") + + PORT_START("K1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_POWER_ON ) PORT_CHANGED_CB(4) PORT_NAME("On / Off") + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SELECT ) PORT_CHANGED_CB(5) PORT_NAME("Pause") + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_VOLUME_DOWN ) PORT_CHANGED_CB(6) PORT_NAME("Sound") + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + +// config + +void stackch_state::stackch(machine_config &config) +{ + // basic machine hardware + E0C6S46(config, m_maincpu, 32.768_kHz_XTAL); + m_maincpu->set_osc3(1'000'000); + m_maincpu->write_r<4>().set("speaker", FUNC(speaker_sound_device::level_w)).bit(3); + m_maincpu->write_segs().set(FUNC(stackch_state::lcd_segment_w)); + + // video hardware + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_SVG)); + screen.set_refresh_hz(60); + screen.set_size(856, 1080); + screen.set_visarea_full(); + + config.set_default_layout(layout_hh_e0c6200_lcd); + + // sound hardware + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.25); +} + +// roms + +ROM_START( stackch ) + ROM_REGION( 0x3000, "maincpu", 0 ) + ROM_LOAD( "stackch.bin", 0x0000, 0x3000, CRC(28b9310a) SHA1(52b80d70aa7fc3b6323799403b3aba0e3d957f3b) ) + + ROM_REGION( 133022, "screen", 0) + ROM_LOAD( "stackch.svg", 0, 133022, CRC(caf74ad4) SHA1(2f2e836b0efe377305bb113a550f1cb4ec939273) ) +ROM_END + +} // anonymous namespace + + + +/******************************************************************************* + + Game driver(s) + +*******************************************************************************/ + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS +SYST( 1997, tama, 0, 0, tama, tama, tama_state, empty_init, "Bandai", "Tamagotchi (Gen. 1, World)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK ) +SYST( 1997, tamag2, 0, 0, tama, tama, tama_state, empty_init, "Bandai", "Tamagotchi (Gen. 2, Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK ) +SYST( 1997, tamaang, 0, 0, tamaang, tamaang, tamaang_state, empty_init, "Bandai", "Tenshitchi no Tamagotchi (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK ) +SYST( 1997, tamamot, 0, 0, tamaang, tama, tamaang_state, empty_init, "Bandai", "Mothra no Tamagotchi (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK ) +SYST( 1997, digimon, 0, 0, digimon, digimon, digimon_state, empty_init, "Bandai", "Digital Monster (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK | MACHINE_NODEVICE_LAN ) +SYST( 1998, digimonv2, 0, 0, digimon, digimon, digimon_state, empty_init, "Bandai", "Digital Monster Ver. 2 (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK | MACHINE_NODEVICE_LAN ) +SYST( 1998, digimonv3, 0, 0, digimon, digimon, digimon_state, empty_init, "Bandai", "Digital Monster Ver. 3 (Japan)", MACHINE_SUPPORTS_SAVE | MACHINE_REQUIRES_ARTWORK | MACHINE_NODEVICE_LAN ) + +SYST( 1997, alienfev, 0, 0, alienfev, alienfev, alienfev_state, empty_init, "Epoch", "Chibi Pachi: Alien Fever", MACHINE_SUPPORTS_SAVE ) + +SYST( 1997, venusdm, 0, 0, venusdm, venusdm, venusdm_state, empty_init, "Nikko", "Beans Collection: Venus Diet Monogatari", MACHINE_SUPPORTS_SAVE ) + +SYST( 1991, stackch, 0, 0, stackch, stackch, stackch_state, empty_init, "Tandy Corporation", "Stack Challenge", MACHINE_SUPPORTS_SAVE ) |