// license:BSD-3-Clause // copyright-holders:hap /*************************************************************************** Olympia / Seletron, Long Beach PCB was broken, and there are no known references. 16MHz XTAL, M6800 @ 500kHz 2x 5101 sram 256x4bit (256 byte) battery backed 4x 4045 sram 1kx4 (2K byte) Game should be in b&w? But then highlighted blocks in testmode would be invisible. 6800 hits many illegal opcodes (0x02), though it's harmless. Maybe they meant to inserts nops (0x01) to remove debug stuff or to make room for future additions? TODO: - discrete sound - improve colors - unknown writes ***************************************************************************/ #include "emu.h" #include "cpu/m6800/m6800.h" #include "machine/nvram.h" #include "screen.h" #include "lbeach.lh" class lbeach_state : public driver_device { public: lbeach_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_bg_vram(*this, "bg_vram"), m_fg_vram(*this, "fg_vram"), m_scroll_y(*this, "scroll_y"), m_sprite_x(*this, "sprite_x"), m_sprite_code(*this, "sprite_code"), m_collision_bg_car(0), m_collision_fg_car(0), m_gfxdecode(*this, "gfxdecode"), m_screen(*this, "screen"), m_palette(*this, "palette") { } /* devices / memory pointers */ required_device m_maincpu; required_shared_ptr m_bg_vram; required_shared_ptr m_fg_vram; required_shared_ptr m_scroll_y; required_shared_ptr m_sprite_x; required_shared_ptr m_sprite_code; int m_collision_bg_car; int m_collision_fg_car; required_device m_gfxdecode; required_device m_screen; required_device m_palette; bitmap_ind16 m_colmap_car; tilemap_t* m_bg_tilemap; tilemap_t* m_fg_tilemap; TILE_GET_INFO_MEMBER(get_bg_tile_info); TILE_GET_INFO_MEMBER(get_fg_tile_info); DECLARE_WRITE8_MEMBER(lbeach_bg_vram_w); DECLARE_WRITE8_MEMBER(lbeach_fg_vram_w); DECLARE_READ8_MEMBER(lbeach_in1_r); DECLARE_READ8_MEMBER(lbeach_in2_r); virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; DECLARE_PALETTE_INIT(lbeach); uint32_t screen_update_lbeach(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void lbeach(machine_config &config); void lbeach_map(address_map &map); }; /*************************************************************************** Video ***************************************************************************/ PALETTE_INIT_MEMBER(lbeach_state, lbeach) { // tiles palette.set_pen_color(0, 0x00, 0x00, 0x00); palette.set_pen_color(1, 0xc0, 0xc0, 0xc0); // road palette.set_pen_color(2, 0x00, 0x00, 0x00); palette.set_pen_color(3, 0xff, 0xff, 0xff); palette.set_pen_color(4, 0x80, 0x80, 0x80); palette.set_pen_color(5, 0xff, 0xff, 0xff); palette.set_pen_color(6, 0x00, 0x00, 0x00); palette.set_pen_color(7, 0x80, 0x80, 0x80); palette.set_pen_color(8, 0x80, 0x80, 0x80); palette.set_pen_color(9, 0xff, 0xff, 0xff); // player car palette.set_pen_color(10, 0x00, 0x00, 0x00); palette.set_pen_color(11, 0xff, 0xff, 0xff); } TILE_GET_INFO_MEMBER(lbeach_state::get_bg_tile_info) { // d0-d4: code // d5: unused? // d6,d7: color uint8_t code = m_bg_vram[tile_index]; SET_TILE_INFO_MEMBER(1, code & 0x1f, code >> 6 & 3, 0); } TILE_GET_INFO_MEMBER(lbeach_state::get_fg_tile_info) { uint8_t code = m_fg_vram[tile_index]; SET_TILE_INFO_MEMBER(0, code, 0, 0); } void lbeach_state::video_start() { m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(lbeach_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 16, 32, 16); m_fg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(lbeach_state::get_fg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 8, 32, 32); m_fg_tilemap->set_transparent_pen(0); m_screen->register_screen_bitmap(m_colmap_car); } uint32_t lbeach_state::screen_update_lbeach(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { // draw bg layer (road) m_bg_tilemap->set_scrolly(0, *m_scroll_y); m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0); // check collision int sprite_code = *m_sprite_code & 0xf; int sprite_x = *m_sprite_x * 2 - 4; int sprite_y = 160; m_colmap_car.fill(0, cliprect); m_gfxdecode->gfx(2)->transpen(m_colmap_car,cliprect, sprite_code, 0, 0, 0, sprite_x, sprite_y, 0); bitmap_ind16 &fg_bitmap = m_fg_tilemap->pixmap(); m_collision_bg_car = 0; m_collision_fg_car = 0; for (int y = sprite_y; y < (sprite_y + 16); y++) { for (int x = sprite_x; x < (sprite_x + 16) && cliprect.contains(x, y); x++) { m_collision_bg_car |= (bitmap.pix16(y, x) & m_colmap_car.pix16(y, x) & 1); m_collision_fg_car |= (fg_bitmap.pix16(y, x) & m_colmap_car.pix16(y, x) & 1); } } // draw fg layer (tiles) m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 0); // draw player car m_gfxdecode->gfx(2)->transpen(bitmap,cliprect, sprite_code, 0, 0, 0, sprite_x, sprite_y, 0); return 0; } WRITE8_MEMBER(lbeach_state::lbeach_bg_vram_w) { m_bg_vram[offset] = data; m_bg_tilemap->mark_tile_dirty(offset); } WRITE8_MEMBER(lbeach_state::lbeach_fg_vram_w) { m_fg_vram[offset] = data; m_fg_tilemap->mark_tile_dirty(offset); } /*************************************************************************** Memory Map, I/O ***************************************************************************/ READ8_MEMBER(lbeach_state::lbeach_in1_r) { // d6,7(steering wheel) need to be swapped return bitswap<8>(ioport("IN1")->read(),6,7,5,4,3,2,1,0); } READ8_MEMBER(lbeach_state::lbeach_in2_r) { // d6 and d7 are for collision detection uint8_t d6 = m_collision_fg_car ? 0x40 : 0; uint8_t d7 = m_collision_bg_car ? 0x80 : 0; return (ioport("IN2")->read() & 0x3f) | d6 | d7; } void lbeach_state::lbeach_map(address_map &map) { map(0x0000, 0x00ff).ram().share("nvram"); map(0x4000, 0x41ff).ram().w(this, FUNC(lbeach_state::lbeach_bg_vram_w)).share("bg_vram"); map(0x4000, 0x4000).r(this, FUNC(lbeach_state::lbeach_in1_r)); map(0x4200, 0x43ff).ram(); map(0x4400, 0x47ff).ram().w(this, FUNC(lbeach_state::lbeach_fg_vram_w)).share("fg_vram"); map(0x8000, 0x8000).r(this, FUNC(lbeach_state::lbeach_in2_r)); map(0x8000, 0x8000).writeonly().share("scroll_y"); map(0x8001, 0x8001).writeonly().share("sprite_x"); map(0x8002, 0x8002).writeonly().share("sprite_code"); // AM_RANGE(0x8003, 0x8003) AM_WRITENOP // ? // AM_RANGE(0x8004, 0x8004) AM_WRITENOP // ? // AM_RANGE(0x8005, 0x8005) AM_WRITENOP // ? map(0x8007, 0x8007).nopw(); // probably watchdog map(0xa000, 0xa000).portr("IN0"); // AM_RANGE(0xa003, 0xa003) AM_READNOP // ? tests d7 at game over map(0xc000, 0xcfff).rom(); map(0xf000, 0xffff).rom(); } /*************************************************************************** Inputs ***************************************************************************/ static INPUT_PORTS_START( lbeach ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Gas Pedal") PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Shifter 1st Gear") PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("Shifter 2nd Gear") PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_NAME("Shifter 3rd Gear") PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_NAME("Shifter 4th Gear") PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_NAME("Reset Record") // called RR in testmode PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE2 ) PORT_NAME("Coin Counter") // called CC in testmode PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_START("IN1") PORT_BIT( 0x1f, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_SERVICE_NO_TOGGLE( 0x20, IP_ACTIVE_LOW ) PORT_BIT(0xc0, 0x40, IPT_PADDLE ) PORT_INVERT PORT_MINMAX(0x00,0x80) PORT_SENSITIVITY(50) PORT_KEYDELTA(1) PORT_CENTERDELTA(1) PORT_START("IN2") PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x02, DEF_STR( 2C_1C ) ) // dupe PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) ) PORT_DIPNAME( 0x0c, 0x00, "Refueling Point" ) PORT_DIPSETTING( 0x00, "200 km" ) PORT_DIPSETTING( 0x04, "250 km" ) PORT_DIPSETTING( 0x08, "300 km" ) PORT_DIPSETTING( 0x0c, "350 km" ) PORT_DIPNAME( 0x30, 0x10, "Fuel Drop Rate" ) PORT_DIPSETTING( 0x30, "1" ) // slow PORT_DIPSETTING( 0x20, "2" ) PORT_DIPSETTING( 0x10, "3" ) PORT_DIPSETTING( 0x00, "4" ) // fast PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_CUSTOM ) INPUT_PORTS_END /*************************************************************************** Machine Config ***************************************************************************/ static const gfx_layout tile_layout_16x8 = { 16,8, RGN_FRAC(1,1), 1, { 0 }, { STEP16(0,1) }, { STEP8(0,16) }, 16*8 }; static const gfx_layout tile_layout_16x16 = { 16,16, RGN_FRAC(1,1), 1, { 0 }, { STEP16(0,1) }, { STEP16(0,16) }, 16*16 }; static GFXDECODE_START( gfx_lbeach ) GFXDECODE_ENTRY( "gfx1", 0, tile_layout_16x8, 0, 1 ) GFXDECODE_ENTRY( "gfx2", 0, tile_layout_16x16, 2, 4 ) GFXDECODE_ENTRY( "gfx3", 0, tile_layout_16x16, 10, 1 ) GFXDECODE_END void lbeach_state::machine_start() { save_item(NAME(m_collision_bg_car)); save_item(NAME(m_collision_fg_car)); } void lbeach_state::machine_reset() { } MACHINE_CONFIG_START(lbeach_state::lbeach) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", M6800, XTAL(16'000'000) / 32) // Motorola MC6800P, 500kHz MCFG_DEVICE_PROGRAM_MAP(lbeach_map) MCFG_NVRAM_ADD_0FILL("nvram") /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) // ~60Hz MCFG_SCREEN_SIZE(512, 256) MCFG_SCREEN_VISIBLE_AREA(0, 511-32, 0, 255-24) MCFG_SCREEN_UPDATE_DRIVER(lbeach_state, screen_update_lbeach) MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_ALWAYS_UPDATE) // needed for collision detection MCFG_SCREEN_PALETTE("palette") MCFG_SCREEN_VBLANK_CALLBACK(INPUTLINE("maincpu", INPUT_LINE_NMI)) MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_lbeach) MCFG_PALETTE_ADD("palette", 2+8+2) MCFG_PALETTE_INIT_OWNER(lbeach_state, lbeach) /* sound hardware */ // ... MACHINE_CONFIG_END /*************************************************************************** Game Drivers ***************************************************************************/ ROM_START( lbeach ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "x.c1", 0xc000, 0x0800, CRC(767fc287) SHA1(da8d59c4827b8479064084e14fa8a7bf71a65293) ) ROM_LOAD( "c2.c2", 0xc800, 0x0800, CRC(9f30e0de) SHA1(607873566fd330486d2bc22cabd5623c021b1dc8) ) ROM_LOAD( "f03.c3", 0xf000, 0x0800, CRC(6728aa45) SHA1(7f41d52f1e63cafd82ad0853a66ecbbdbee070b3) ) ROM_LOAD( "f47.c4", 0xf800, 0x0800, CRC(950f3154) SHA1(e8bd1a818fe293163466169b65e07ac635ddfdb1) ) ROM_REGION( 0x1000, "gfx1", 0 ) ROM_LOAD( "15.e2", 0x0000, 0x0800, CRC(9f24897c) SHA1(5ae05b06dadf4e935e39ac289f2db7719ff3b230) ) ROM_LOAD( "s2.d2", 0x0800, 0x0800, CRC(c5d59466) SHA1(663df8397081daa89f9e3f7aec7e07557cf5b310) ) ROM_REGION( 0x0400, "gfx2", 0 ) ROM_LOAD( "r.d1", 0x0000, 0x0400, CRC(07e99395) SHA1(67a68dee8e97ae74ab13af62cdc5279c358dc897) ) ROM_REGION( 0x0200, "gfx3", 0 ) ROM_LOAD( "93448.h4", 0x0000, 0x0200, BAD_DUMP CRC(0dca040d) SHA1(d775cbf9fbb9449881ce4997187a1945d34d3cb6) ) // bad dump: stuck a5 ROM_END GAMEL( 1979, lbeach, 0, lbeach, lbeach, lbeach_state, empty_init, ROT0, "Olympia / Seletron", "Long Beach", MACHINE_IMPERFECT_COLORS | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE, layout_lbeach )