// license:BSD-3-Clause // copyright-holders:David Haywood /* This is a simple 'Pairs' game called Carrera by BS Electronics PCB Layout ---------- |----------------------------------------------| | 22.1184MHz Z80 | | ROM.IC1 | |_ BATTERY ROM.IC22 | | | _| 6116 ROM.IC2 | | | | | |J AY-3-8910 ROM.IC3 | |A DSW1(8) | |M | |M DSW2(8) ROM.IC4 | |A | | DSW3(8) | | ROM.IC5 | |_ PROM.IC39 DSW4(8) | | 6116 | _| | | HD6845 6116 | |----------------------------------------------| Notes: Z80 @ 3.6864MHz [22.1184/6] AY-3-8910 @ 1.8432MHz [22.1184/12] Emulation Notes: Corrupt Tile on the first R in Carrera? (unlikely to be a bug, HW is very simple..) There is also a 'Bomberman' title in the GFX roms, unused from what I can see. TODO: - Are colors 100% correct? Needs a reference to be sure. - There are reel gfxs on the roms (near the end), left-over or there's a way to enable it? Update: if you trigger a normal irq 0 instead of a NMI the game will change into a proper 8 liner game without inputs. Investigate on it... */ #define MASTER_CLOCK XTAL(22'118'400) #include "emu.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" #include "video/mc6845.h" #include "screen.h" #include "speaker.h" class carrera_state : public driver_device { public: carrera_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_tileram(*this, "tileram"), m_maincpu(*this, "maincpu"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } required_shared_ptr m_tileram; DECLARE_READ8_MEMBER(unknown_r); DECLARE_PALETTE_INIT(carrera); uint32_t screen_update_carrera(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_device m_maincpu; required_device m_gfxdecode; required_device m_palette; void carrera(machine_config &config); void carrera_map(address_map &map); void io_map(address_map &map); }; void carrera_state::carrera_map(address_map &map) { map(0x0000, 0x4fff).rom(); map(0xe000, 0xe7ff).ram(); map(0xe800, 0xe800).w("crtc", FUNC(mc6845_device::address_w)); map(0xe801, 0xe801).w("crtc", FUNC(mc6845_device::register_w)); map(0xf000, 0xffff).ram().share("tileram"); } void carrera_state::io_map(address_map &map) { map.global_mask(0xff); map(0x00, 0x00).portr("IN0"); map(0x01, 0x01).portr("IN1"); map(0x02, 0x02).portr("IN2"); map(0x03, 0x03).portr("IN3"); map(0x04, 0x04).portr("IN4"); map(0x05, 0x05).portr("IN5"); map(0x06, 0x06).nopw(); // ? map(0x08, 0x09).w("aysnd", FUNC(ay8910_device::address_data_w)); } static INPUT_PORTS_START( carrera ) PORT_START("IN0") /* Port 0 */ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* unused / unknown inputs, not dips */ PORT_DIPNAME( 0x20, 0x20, "0" ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN1") /* Port 1 */ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) /* unused / unknown inputs, not dips */ PORT_DIPNAME( 0x04, 0x04, "1" ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) /* I suspect the 4 below are the 4xDSWs */ PORT_START("IN2") /* Port 2 */ PORT_DIPNAME( 0x01, 0x01, "2" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN3") /* Port 3 */ PORT_DIPNAME( 0x01, 0x01, "3" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN4") /* Port 4 */ PORT_DIPNAME( 0x01, 0x01, "4" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN5") /* Port 5 */ PORT_DIPNAME( 0x01, 0x01, "5" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, "Playing Graphics" ) PORT_DIPSETTING( 0x08, "Bricks" ) PORT_DIPSETTING( 0x00, "Fruits" ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, "Debug?" ) // displays numbers over the game area PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) INPUT_PORTS_END static const gfx_layout tiles8x8_layout = { 8,8, RGN_FRAC(1,5), 5, { RGN_FRAC(0,5), RGN_FRAC(1,5),RGN_FRAC(2,5),RGN_FRAC(3,5),RGN_FRAC(4,5) }, { 0, 1, 2, 3, 4, 5, 6, 7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*8 }; static GFXDECODE_START( gfx_carrera ) GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 1 ) GFXDECODE_END uint32_t carrera_state::screen_update_carrera(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int x,y; int count = 0; for (y=0;y<32;y++) { for (x=0;x<64;x++) { int tile = m_tileram[count&0x7ff] | m_tileram[(count&0x7ff)+0x800]<<8; m_gfxdecode->gfx(0)->opaque(bitmap,cliprect,tile,0,0,0,x*8,y*8); count++; } } return 0; } READ8_MEMBER(carrera_state::unknown_r) { return machine().rand(); } PALETTE_INIT_MEMBER(carrera_state, carrera) { const uint8_t *color_prom = memregion("proms")->base(); int br_bit0, br_bit1, bit0, bit1, r, g, b; int i; for (i = 0; i < 0x20; ++i) { br_bit0 = (color_prom[0] >> 6) & 0x01; br_bit1 = (color_prom[0] >> 7) & 0x01; bit0 = (color_prom[0] >> 0) & 0x01; bit1 = (color_prom[0] >> 3) & 0x01; b = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; bit0 = (color_prom[0] >> 1) & 0x01; bit1 = (color_prom[0] >> 4) & 0x01; g = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; bit0 = (color_prom[0] >> 2) & 0x01; bit1 = (color_prom[0] >> 5) & 0x01; r = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; palette.set_pen_color(i, rgb_t(r, g, b)); color_prom++; } } MACHINE_CONFIG_START(carrera_state::carrera) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80, MASTER_CLOCK / 6) MCFG_DEVICE_PROGRAM_MAP(carrera_map) MCFG_DEVICE_IO_MAP(io_map) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_SIZE(512, 256) MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1) MCFG_SCREEN_UPDATE_DRIVER(carrera_state, screen_update_carrera) MCFG_SCREEN_PALETTE("palette") MCFG_MC6845_ADD("crtc", MC6845, "screen", MASTER_CLOCK / 16) MCFG_MC6845_SHOW_BORDER_AREA(false) MCFG_MC6845_CHAR_WIDTH(8) MCFG_MC6845_OUT_VSYNC_CB(INPUTLINE("maincpu", INPUT_LINE_NMI)) MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_carrera) MCFG_PALETTE_ADD("palette", 32) MCFG_PALETTE_INIT_OWNER(carrera_state, carrera) /* sound hardware */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("aysnd", AY8910, MASTER_CLOCK/12) /* these are set as input, but I have no idea which input port it uses is for the AY */ MCFG_AY8910_PORT_A_READ_CB(READ8(*this, carrera_state, unknown_r)) MCFG_AY8910_PORT_B_READ_CB(READ8(*this, carrera_state, unknown_r)) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) MACHINE_CONFIG_END ROM_START( carrera ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "27512.ic22", 0x00000, 0x10000, CRC(2385b9c8) SHA1(12d4397779e074096fbb23b114985f104366b79c) ) ROM_REGION( 0x50000, "gfx1", 0 ) ROM_LOAD( "27512.ic1", 0x00000, 0x10000, CRC(a16e914e) SHA1(09f2271f193a7bffd62ef6e428ecbf9aa1154860) ) ROM_LOAD( "27512.ic2", 0x10000, 0x10000, CRC(147036a5) SHA1(34b4818fe61c5b13220b0a2001987b68b655b2cb) ) ROM_LOAD( "27512.ic3", 0x20000, 0x10000, CRC(920eee0e) SHA1(85e6d5292b751c57c64d17858bd00292356599e3) ) ROM_LOAD( "27512.ic4", 0x30000, 0x10000, CRC(97433f36) SHA1(39f3c6b76ad540693682832aba6e4fc400ca3753) ) ROM_LOAD( "27512.ic5", 0x40000, 0x10000, CRC(ffa75920) SHA1(aa5619f5aabcdfa250bb24bcad101a8c512a1776) ) ROM_REGION( 0x20, "proms", 0 ) ROM_LOAD( "82s123.ic39", 0x00, 0x20, CRC(af16359f) SHA1(1ff5c9d7807e52be09c0ded56fb68a47e41b3fcf) ) ROM_END GAME( 19??, carrera, 0, carrera, carrera, carrera_state, empty_init, ROT0, "BS Electronics", "Carrera (Version 6.7)", 0 )