// license:BSD-3-Clause // copyright-holders:Brad Oliver /********************************************************************************* Zero Zone memory map driver by Brad Oliver CPU 1 : 68000, uses irq 1 0x000000 - 0x01ffff : ROM 0x080000 - 0x08000f : input ports and dipswitches 0x088000 - 0x0881ff : palette RAM, 256 total colors 0x09ce00 - 0x09d9ff : video ram, 48x32 0x0c0000 - 0x0cffff : RAM 0x0f8000 - 0x0f87ff : RAM (unused?) Stephh's notes : IMO, the game only has 2 buttons (1 to rotate the pieces and 1 for help). The 3rd button (when the Dip Switch is activated) subs one "line" (0x0c0966 for player 1 and 0x0c1082 for player 2) each time it is pressed. As I don't see why such thing would REALLY exist, I've added the IPF_CHEAT flag for the Dip Switch and the 3rd button of each player. TODO: * adpcm samples don't seem to be playing at the proper tempo - too fast? *********************************************************************************/ #include "emu.h" #include "includes/zerozone.h" #include "cpu/m68000/m68000.h" #include "sound/okim6295.h" #include "emupal.h" #include "screen.h" #include "speaker.h" WRITE16_MEMBER( zerozone_state::sound_w ) { if (ACCESSING_BITS_8_15) { m_soundlatch->write(data >> 8); m_audiocpu->set_input_line_and_vector(0, HOLD_LINE, 0xff); // Z80 } } void zerozone_state::main_map(address_map &map) { map(0x000000, 0x01ffff).rom(); map(0x080000, 0x080001).portr("SYSTEM"); map(0x080002, 0x080003).portr("INPUTS"); map(0x080008, 0x080009).portr("DSWB"); map(0x08000a, 0x08000b).portr("DSWA"); map(0x084000, 0x084001).w(FUNC(zerozone_state::sound_w)); map(0x088000, 0x0881ff).ram().w("palette", FUNC(palette_device::write16)).share("palette"); map(0x098000, 0x098001).ram(); /* Watchdog? */ map(0x09ce00, 0x09ffff).ram().w(FUNC(zerozone_state::tilemap_w)).share("videoram"); map(0x0b4000, 0x0b4001).w(FUNC(zerozone_state::tilebank_w)); map(0x0c0000, 0x0cffff).ram(); map(0x0f8000, 0x0f87ff).ram(); /* Never read from */ } void zerozone_state::sound_map(address_map &map) { map(0x0000, 0x7fff).rom(); map(0x8000, 0x87ff).ram(); map(0x9800, 0x9800).rw("oki", FUNC(okim6295_device::read), FUNC(okim6295_device::write)); map(0xa000, 0xa000).r(m_soundlatch, FUNC(generic_latch_8_device::read)); } static INPUT_PORTS_START( zerozone ) PORT_START("SYSTEM") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("INPUTS") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(1) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(1) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(1) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(1) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_NAME("P1 Score Line (Cheat)") PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(2) PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(2) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(2) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(2) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_NAME("P2 Score Line (Cheat)") PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("DSWA") PORT_DIPNAME( 0x0007, 0x0007, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x0000, DEF_STR( 5C_1C ) ) PORT_DIPSETTING( 0x0001, DEF_STR( 4C_1C ) ) PORT_DIPSETTING( 0x0002, DEF_STR( 3C_1C ) ) PORT_DIPSETTING( 0x0003, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x0007, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x0006, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x0005, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) ) PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Difficulty ) ) PORT_DIPSETTING( 0x0008, "In Game Default" ) // 130, 162 or 255 "lines" PORT_DIPSETTING( 0x0000, "Always Hard" ) // 255 "lines" PORT_DIPNAME( 0x0010, 0x0010, "Speed" ) PORT_DIPSETTING( 0x0010, DEF_STR( Normal ) ) // Drop every 20 frames PORT_DIPSETTING( 0x0000, "Fast" ) // Drop every 18 frames PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Demo_Sounds ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0020, DEF_STR( On ) ) PORT_DIPUNUSED( 0x0040, IP_ACTIVE_LOW ) PORT_DIPUNUSED( 0x0080, IP_ACTIVE_LOW ) PORT_START("DSWB") PORT_DIPUNUSED( 0x0100, IP_ACTIVE_LOW ) PORT_DIPUNUSED( 0x0200, IP_ACTIVE_LOW ) PORT_DIPNAME( 0x0400, 0x0400, "Helps" ) PORT_DIPSETTING( 0x0400, "1" ) PORT_DIPSETTING( 0x0000, "2" ) PORT_DIPNAME( 0x0800, 0x0800, "Bonus Help" ) PORT_DIPSETTING( 0x0000, "30000" ) PORT_DIPSETTING( 0x0800, DEF_STR( None ) ) PORT_DIPNAME( 0x1000, 0x1000, "Activate 'Score Line'? (Cheat)") PORT_DIPSETTING( 0x1000, DEF_STR( No ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Yes ) ) PORT_DIPUNUSED( 0x2000, IP_ACTIVE_LOW ) PORT_DIPUNUSED( 0x4000, IP_ACTIVE_LOW ) PORT_SERVICE( 0x8000, IP_ACTIVE_LOW ) INPUT_PORTS_END static const gfx_layout charlayout = { 8,8, /* 8*8 characters */ RGN_FRAC(1,1), /* 4096 characters */ 4, /* 4 bits per pixel */ { 0, 1, 2, 3 }, { 0, 4, 8+0, 8+4, 16+0, 16+4, 24+0, 24+4 }, { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 }, 32*8 /* every sprite takes 32 consecutive bytes */ }; static GFXDECODE_START( gfx_zerozone ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 256 ) /* sprites & playfield */ GFXDECODE_END void zerozone_state::machine_start() { save_item(NAME(m_tilebank)); } void zerozone_state::machine_reset() { m_tilebank = 0; } WRITE_LINE_MEMBER(zerozone_state::vblank_w) { // TODO: Not accurate, find vblank acknowledge if (state) m_maincpu->set_input_line(1, HOLD_LINE); } void zerozone_state::zerozone(machine_config &config) { /* basic machine hardware */ M68000(config, m_maincpu, 10000000); /* 10 MHz */ m_maincpu->set_addrmap(AS_PROGRAM, &zerozone_state::main_map); Z80(config, m_audiocpu, 1000000); /* 1 MHz ??? */ m_audiocpu->set_addrmap(AS_PROGRAM, &zerozone_state::sound_map); config.set_maximum_quantum(attotime::from_hz(600)); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(0)); screen.set_size(64*8, 32*8); screen.set_visarea(1*8, 47*8-1, 2*8, 30*8-1); screen.set_palette("palette"); screen.set_screen_update(FUNC(zerozone_state::screen_update)); screen.screen_vblank().set(FUNC(zerozone_state::vblank_w)); GFXDECODE(config, m_gfxdecode, "palette", gfx_zerozone); PALETTE(config, "palette").set_format(palette_device::RRRRGGGGBBBBRGBx, 256); /* sound hardware */ SPEAKER(config, "mono").front_center(); GENERIC_LATCH_8(config, m_soundlatch); okim6295_device &oki(OKIM6295(config, "oki", 1056000, okim6295_device::PIN7_HIGH)); // clock frequency & pin 7 not verified oki.add_route(ALL_OUTPUTS, "mono", 1.0); } /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( zerozone ) ROM_REGION( 0x20000, "maincpu", 0 ) /* 128k for 68000 code */ ROM_LOAD16_BYTE( "zz-4.rom", 0x0000, 0x10000, CRC(83718b9b) SHA1(b3fc6da5816142b9c92a7b8615eb5bcb2c78ea46) ) ROM_LOAD16_BYTE( "zz-5.rom", 0x0001, 0x10000, CRC(18557f41) SHA1(6ef908732b7775c1ea2b33f799635075db5756de) ) ROM_REGION( 0x10000, "audiocpu", 0 ) /* sound cpu */ ROM_LOAD( "zz-1.rom", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) ) ROM_REGION( 0x080000, "gfx1", 0 ) ROM_LOAD( "zz-6.rom", 0x00000, 0x80000, CRC(c8b906b9) SHA1(1775d69df6397d6772b20c65751d44556d76c033) ) ROM_REGION( 0x40000, "oki", 0 ) /* ADPCM samples */ ROM_LOAD( "zz-2.rom", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) ) ROM_LOAD( "zz-3.rom", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) ) ROM_END ROM_START( lvgirl94 ) ROM_REGION( 0x20000, "maincpu", 0 ) /* 128k for 68000 code */ ROM_LOAD16_BYTE( "rom4", 0x0000, 0x10000, CRC(c4fb449e) SHA1(dd1c567ba2cf951267dd622e2e9af265e742f246) ) ROM_LOAD16_BYTE( "rom5", 0x0001, 0x10000, CRC(5d446a1a) SHA1(2d7ea25e5b86e7cf4eb7f10daa1eaaaed6830a53) ) ROM_REGION( 0x080000, "gfx1", 0 ) ROM_LOAD( "rom6", 0x00000, 0x40000, CRC(eeeb94ba) SHA1(9da09312c090ef2d40f596247d9a7decf3724e54) ) /* sound roms are the same as zerozone */ ROM_REGION( 0x10000, "audiocpu", 0 ) /* sound cpu */ ROM_LOAD( "rom1", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) ) ROM_REGION( 0x40000, "oki", 0 ) /* ADPCM samples */ ROM_LOAD( "rom2", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) ) ROM_LOAD( "rom3", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) ) ROM_END GAME( 1993, zerozone, 0, zerozone, zerozone, zerozone_state, empty_init, ROT0, "Comad", "Zero Zone", MACHINE_SUPPORTS_SAVE ) GAME( 1994, lvgirl94, 0, zerozone, zerozone, zerozone_state, empty_init, ROT0, "Comad", "Las Vegas Girl (Girl '94)", MACHINE_SUPPORTS_SAVE )