/*************************************************************************** MC-80.xx driver by Miodrag Milanovic 15/05/2009 Initial implementation 12/05/2009 Skeleton driver. 01/09/2011 Modernised, added a keyboard to mc8020 Real workings of mc8020 keyboard need to be understood and implemented. mc8030: very little info available. The area from FFD8-FFFF is meant for interrupt vectors and so on, but most of it is zeroes. Appears the keyboard is an ascii keyboard with built-in beeper. It communicates via the SIO, which needs a rewrite to become useful. The asp ctc needs at least 2 triggers. The purpose of the zve pio is unknown. The system uses interrupts for various things, but none of that is working. ****************************************************************************/ #include "includes/mc80.h" static ADDRESS_MAP_START(mc8020_mem, AS_PROGRAM, 8, mc80_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x0bff) AM_ROM AM_RANGE(0x0c00, 0x0fff) AM_RAM AM_SHARE("videoram")// 1KB RAM ZRE AM_RANGE(0x2000, 0x5fff) AM_ROM AM_RANGE(0x6000, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START(mc8020_io, AS_IO, 8, mc80_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0xf0, 0xf3) AM_DEVREADWRITE("z80ctc", z80ctc_device, read, write) AM_RANGE(0xf4, 0xf7) AM_DEVREADWRITE("z80pio", z80pio_device, read, write) ADDRESS_MAP_END static ADDRESS_MAP_START(mc8030_mem, AS_PROGRAM, 8, mc80_state) ADDRESS_MAP_UNMAP_HIGH // ZRE 4 * 2KB AM_RANGE(0x0000, 0x1fff) AM_ROM // ZRE ROM's 4 * 2716 AM_RANGE(0x2000, 0x27ff) AM_ROM // SPE ROM's 2 * 2708 AM_RANGE(0x2800, 0x3fff) AM_ROM // For extension AM_RANGE(0x4000, 0xbfff) AM_RAM // SPE RAM AM_RANGE(0xc000, 0xffff) AM_RAM // ZRE RAM ADDRESS_MAP_END static ADDRESS_MAP_START(mc8030_io, AS_IO, 8, mc80_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x30, 0x3f) AM_MIRROR(0xff00) AM_NOP //"mass storage" AM_RANGE(0x80, 0x83) AM_MIRROR(0xff00) AM_DEVREADWRITE("zve_ctc", z80ctc_device, read, write) // user CTC AM_RANGE(0x84, 0x87) AM_MIRROR(0xff00) AM_DEVREADWRITE("zve_pio", z80pio_device, read, write) // PIO unknown usage AM_RANGE(0x88, 0x8f) AM_MIRROR(0xff00) AM_WRITE(mc8030_zve_write_protect_w) AM_RANGE(0xc0, 0xcf) AM_MIRROR(0xff00) AM_WRITE(mc8030_vis_w) AM_MASK(0xffff) AM_RANGE(0xd0, 0xd3) AM_MIRROR(0xff00) AM_DEVREADWRITE("asp_sio", z80sio0_device, cd_ba_r, cd_ba_w) // keyboard & IFSS? AM_RANGE(0xd4, 0xd7) AM_MIRROR(0xff00) AM_DEVREADWRITE("asp_ctc", z80ctc_device, read, write) // sio bauds, KMBG? and kbd AM_RANGE(0xd8, 0xdb) AM_MIRROR(0xff00) AM_DEVREADWRITE("asp_pio", z80pio_device, read, write) // external bus AM_RANGE(0xe0, 0xef) AM_MIRROR(0xff00) AM_WRITE(mc8030_eprom_prog_w) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( mc8020 ) PORT_START("X1") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('!') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('@') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('#') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('$') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('%') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('&') PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('\'') PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('(') PORT_START("X2") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('0') PORT_CHAR('\"') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('+') PORT_CHAR('*') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('^') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('/') PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_START("X3") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_START("X4") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_START("X5") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_START("X6") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('?') PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR(']') PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_START("X7") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DOWN) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_RIGHT) PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) INPUT_PORTS_END static INPUT_PORTS_START( mc8030 ) INPUT_PORTS_END TIMER_DEVICE_CALLBACK_MEMBER(mc80_state::mc8020_kbd) { address_space &mem = m_maincpu->space(AS_PROGRAM); char kbdrow[6]; UINT8 i; for (i = 1; i < 8; i++) { sprintf(kbdrow,"X%X", i); mem.write_word(0xd20+i, ioport(kbdrow)->read()); } } // this is a guess there is no information available static const z80_daisy_config mc8030_daisy_chain[] = { { "asp_ctc" }, /* System ctc */ { "asp_pio" }, /* System pio */ { "asp_sio" }, /* sio */ { "zve_pio" }, /* User pio */ { "zve_ctc" }, /* User ctc */ { NULL } }; static MACHINE_CONFIG_START( mc8020, mc80_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_2_4576MHz) MCFG_CPU_PROGRAM_MAP(mc8020_mem) MCFG_CPU_IO_MAP(mc8020_io) MCFG_MACHINE_RESET_OVERRIDE(mc80_state,mc8020) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(32*6, 16*8) MCFG_SCREEN_VISIBLE_AREA(0, 32*6-1, 0, 16*8-1) MCFG_VIDEO_START_OVERRIDE(mc80_state,mc8020) MCFG_SCREEN_UPDATE_DRIVER(mc80_state, screen_update_mc8020) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") /* Devices */ MCFG_Z80PIO_ADD( "z80pio", XTAL_2_4576MHz, mc8020_z80pio_intf ) MCFG_Z80CTC_ADD( "z80ctc", XTAL_2_4576MHz / 100, mc8020_ctc_intf ) MCFG_TIMER_DRIVER_ADD_PERIODIC("mc8020_kbd", mc80_state, mc8020_kbd, attotime::from_hz(50)) MACHINE_CONFIG_END static MACHINE_CONFIG_START( mc8030, mc80_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_2_4576MHz) MCFG_CPU_PROGRAM_MAP(mc8030_mem) MCFG_CPU_IO_MAP(mc8030_io) MCFG_CPU_CONFIG(mc8030_daisy_chain) MCFG_MACHINE_RESET_OVERRIDE(mc80_state,mc8030) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(512, 256) MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1) MCFG_VIDEO_START_OVERRIDE(mc80_state,mc8030) MCFG_SCREEN_UPDATE_DRIVER(mc80_state, screen_update_mc8030) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") /* Devices */ MCFG_Z80PIO_ADD( "zve_pio", XTAL_2_4576MHz, mc8030_zve_z80pio_intf ) MCFG_Z80CTC_ADD( "zve_ctc", XTAL_2_4576MHz, mc8030_zve_z80ctc_intf ) MCFG_Z80PIO_ADD( "asp_pio", XTAL_2_4576MHz, mc8030_asp_z80pio_intf ) MCFG_Z80CTC_ADD( "asp_ctc", XTAL_2_4576MHz, mc8030_asp_z80ctc_intf ) MCFG_Z80SIO0_ADD( "asp_sio", 4800, mc8030_asp_z80sio_intf ) MACHINE_CONFIG_END /* ROM definition */ ROM_START( mc8020 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS(0, "ver1", "Version 1") ROMX_LOAD( "s01.rom", 0x0000, 0x0400, CRC(0f1c1a62) SHA1(270c0a9e8e165658f3b09d40a3e8bb3dc1b88184), ROM_BIOS(1)) ROMX_LOAD( "s02.rom", 0x0400, 0x0400, CRC(93b5811c) SHA1(8559d24072c9b5908a2627ff986d818308f51d59), ROM_BIOS(1)) ROMX_LOAD( "s03.rom", 0x0800, 0x0400, CRC(3d32c334) SHA1(56d3012595540d03054ad3c6795ed5d929581a04), ROM_BIOS(1)) ROMX_LOAD( "mo01_v2.rom", 0x2000, 0x0400, CRC(7e47201c) SHA1(db49afdc5c1fe4065a979c56cbdbd3c58f5d942f), ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "ver2", "Version 2") ROMX_LOAD( "s01.rom", 0x0000, 0x0400, CRC(0f1c1a62) SHA1(270c0a9e8e165658f3b09d40a3e8bb3dc1b88184), ROM_BIOS(2)) ROMX_LOAD( "s02_v2.rom", 0x0400, 0x0400, CRC(dd26c90a) SHA1(1108c11362fa63d21110a3b17868c1854a318c09), ROM_BIOS(2)) ROMX_LOAD( "s03_v2.rom", 0x0800, 0x0400, CRC(5b64ee7b) SHA1(3b4cbfcb8e2dedcfd4a3680c81fe6ceb2211b275), ROM_BIOS(2)) ROMX_LOAD( "mo01.rom", 0x2000, 0x0400, CRC(c65a470f) SHA1(71325fed1a342149b5efc2234ecfc8adfff0a42d), ROM_BIOS(2)) ROM_SYSTEM_BIOS(2, "ver3", "Version 3") ROMX_LOAD( "s01.rom", 0x0000, 0x0400, CRC(0f1c1a62) SHA1(270c0a9e8e165658f3b09d40a3e8bb3dc1b88184), ROM_BIOS(3)) ROMX_LOAD( "s02_v3.rom", 0x0400, 0x0400, CRC(40c7a694) SHA1(bcdf382e8dad9bb6e06d23ec018e9df55c8d8d0c), ROM_BIOS(3)) ROMX_LOAD( "s03.rom", 0x0800, 0x0400, CRC(3d32c334) SHA1(56d3012595540d03054ad3c6795ed5d929581a04), ROM_BIOS(3)) ROMX_LOAD( "mo01_v2.rom",0x2000, 0x0400, CRC(7e47201c) SHA1(db49afdc5c1fe4065a979c56cbdbd3c58f5d942f), ROM_BIOS(3)) // m02 doesn't exist on board ROM_LOAD( "mo03.rom", 0x2800, 0x0400, CRC(29685056) SHA1(39e77658fb7af5a28112341f0893e007d73c1b7a)) ROM_LOAD( "mo04.rom", 0x2c00, 0x0400, CRC(fd315b73) SHA1(cfb943ec8c884a9b92562d05f92faf06fe42ad68)) ROM_LOAD( "mo05.rom", 0x3000, 0x0400, CRC(453d6370) SHA1(d96f0849a2da958d7e92a31667178ad140719477)) ROM_LOAD( "mo06.rom", 0x3400, 0x0400, CRC(6357aba5) SHA1(a4867766f6e14e9fe66f22a6839f17c01058c8af)) ROM_LOAD( "mo07.rom", 0x3800, 0x0400, CRC(a1eb6021) SHA1(b05b63f02de89f065f337bbe54c5b48244e3a4ba)) ROM_LOAD( "mo08.rom", 0x3c00, 0x0400, CRC(8221cc32) SHA1(65e0ee4241d39d138205c88374b3bcd127e21511)) ROM_LOAD( "mo09.rom", 0x4000, 0x0400, CRC(7ad5944d) SHA1(ef2781b114277a09ce0cf2e7decfdb7c48a693e3)) ROM_LOAD( "mo10.rom", 0x4400, 0x0400, CRC(11de8c76) SHA1(b384d22506ff7e3e28bd2dcc33b7a69617eeb52a)) ROM_LOAD( "mo11.rom", 0x4800, 0x0400, CRC(370cc672) SHA1(133f6e8bfd4e1ca2e9e0a8e2342084419f895e3c)) ROM_LOAD( "mo12.rom", 0x4c00, 0x0400, CRC(a3838f2b) SHA1(e3602943700bf5068117946bf86f052f5c587169)) ROM_LOAD( "mo13.rom", 0x5000, 0x0400, CRC(88b61d12) SHA1(00dd4452b4d4191e589ab58ba924ed21b10f323b)) ROM_LOAD( "mo14.rom", 0x5400, 0x0400, CRC(2168da19) SHA1(c1ce1263167067d8be0a90604d9c29b7379a0545)) ROM_LOAD( "mo15.rom", 0x5800, 0x0400, CRC(e32f54c4) SHA1(c3d9ca2204e7adbc625cf96031acb8c1df0447c7)) ROM_LOAD( "mo16.rom", 0x5c00, 0x0400, CRC(403be935) SHA1(4e74355a78ab090ce180437156fed8e4a1d1c787)) ROM_END ROM_START( mc8030 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "zve_1.rom", 0x0000, 0x0800, CRC(31ec0159) SHA1(a97ea9eb733c462e77d625a7942134e45d911c0a)) ROM_LOAD( "zve_2.rom", 0x0800, 0x0800, CRC(5104983d) SHA1(7516274904042f4fc6813aa8b2a75c0a64f9b937)) ROM_LOAD( "zve_3.rom", 0x1000, 0x0800, CRC(4bcfd727) SHA1(d296e587098e70270ad60db8edaa685af368b849)) ROM_LOAD( "zve_4.rom", 0x1800, 0x0800, CRC(f949ae43) SHA1(68c324cf5578497db7ae65da5695fcb30493f612)) ROM_LOAD( "spe_1.rom", 0x2000, 0x0400, CRC(826F609C) SHA1(e77ff6c180f5a6d7756d076173ae264a0e26f066)) ROM_LOAD( "spe_2.rom", 0x2400, 0x0400, CRC(98320040) SHA1(6baf87e196f1ccdf44912deafa6042becbfb0679)) ROM_REGION( 0x4000, "vram", ROMREGION_ERASE00 ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 198?, mc8020, 0, 0, mc8020, mc8020, driver_device, 0, "VEB Elektronik Gera", "MC-80.21/22", GAME_NO_SOUND) COMP( 198?, mc8030, mc8020, 0, mc8030, mc8030, driver_device, 0, "VEB Elektronik Gera", "MC-80.30/31", GAME_NOT_WORKING | GAME_NO_SOUND | ORIENTATION_FLIP_X)