/* 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_1184MHz #include "emu.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" #include "video/mc6845.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) { } UINT8* m_tileram; }; static ADDRESS_MAP_START( carrera_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0x4fff) AM_ROM AM_RANGE(0xe000, 0xe7ff) AM_RAM AM_RANGE(0xe800, 0xe800) AM_DEVWRITE_MODERN("crtc", mc6845_device, address_w) AM_RANGE(0xe801, 0xe801) AM_DEVWRITE_MODERN("crtc", mc6845_device, register_w) AM_RANGE(0xf000, 0xffff) AM_RAM AM_BASE_MEMBER(carrera_state, m_tileram) ADDRESS_MAP_END static ADDRESS_MAP_START( io_map, AS_IO, 8 ) ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x00) AM_READ_PORT("IN0") AM_RANGE(0x01, 0x01) AM_READ_PORT("IN1") AM_RANGE(0x02, 0x02) AM_READ_PORT("IN2") AM_RANGE(0x03, 0x03) AM_READ_PORT("IN3") AM_RANGE(0x04, 0x04) AM_READ_PORT("IN4") AM_RANGE(0x05, 0x05) AM_READ_PORT("IN5") AM_RANGE(0x06, 0x06) AM_WRITENOP // ? AM_RANGE(0x08, 0x09) AM_DEVWRITE("aysnd", ay8910_address_data_w) ADDRESS_MAP_END 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( carrera ) GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 1 ) GFXDECODE_END static SCREEN_UPDATE(carrera) { carrera_state *state = screen->machine().driver_data(); int x,y; int count = 0; for (y=0;y<32;y++) { for (x=0;x<64;x++) { int tile = state->m_tileram[count&0x7ff] | state->m_tileram[(count&0x7ff)+0x800]<<8; drawgfx_opaque(bitmap,cliprect,screen->machine().gfx[0],tile,0,0,0,x*8,y*8); count++; } } return 0; } static READ8_DEVICE_HANDLER( unknown_r ) { return device->machine().rand(); } /* these are set as input, but I have no idea which input port it uses is for the AY */ static const ay8910_interface ay8910_config = { AY8910_LEGACY_OUTPUT, AY8910_DEFAULT_LOADS, DEVCB_HANDLER(unknown_r), DEVCB_HANDLER(unknown_r), DEVCB_NULL, DEVCB_NULL }; static PALETTE_INIT(carrera) { int br_bit0, br_bit1, bit0, bit1, r, g, b; int i; for (i = 0; i < 0x40; ++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_color(machine, i, MAKE_RGB(r, g, b)); color_prom++; } } static const mc6845_interface mc6845_intf = { "screen", /* screen we are acting on */ 8, /* number of pixels per video memory address */ NULL, /* before pixel update callback */ NULL, /* row update callback */ NULL, /* after pixel update callback */ DEVCB_NULL, /* callback for display state changes */ DEVCB_NULL, /* callback for cursor state changes */ DEVCB_NULL, /* HSYNC callback */ DEVCB_NULL, /* VSYNC callback */ NULL /* update address callback */ }; static MACHINE_CONFIG_START( carrera, carrera_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", Z80, MASTER_CLOCK / 6) MCFG_CPU_PROGRAM_MAP(carrera_map) MCFG_CPU_IO_MAP(io_map) MCFG_CPU_VBLANK_INT("screen", nmi_line_pulse) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MCFG_SCREEN_SIZE(512, 256) MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1) MCFG_SCREEN_UPDATE(carrera) MCFG_MC6845_ADD("crtc", MC6845, MASTER_CLOCK / 16, mc6845_intf) MCFG_GFXDECODE(carrera) MCFG_PALETTE_LENGTH(32) MCFG_PALETTE_INIT(carrera) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_ADD("aysnd", AY8910, MASTER_CLOCK/12) MCFG_SOUND_CONFIG(ay8910_config) 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,0, ROT0, "BS Electronics", "Carrera (Version 6.7)", 0 )