// license:BSD-3-Clause // copyright-holders:Tomasz Slanina /*********************************** Super Speed Race Jr (c) 1985 Taito driver by Tomasz Slanina TODO: - colors (missing proms) - dips - controls (is there START button ?) - when a car sprite goes outside of the screen it gets stuck for a split frame on top of screen HW info : 0000-7fff ROM c000-dfff VRAM ( 4 tilemaps (4 x $800) ) e000-e7ff RAM e800-efff SCROLL RAM f003 ?? f400-f401 AY 8910 fc00 ?? f800 ?? Scroll RAM contains x and y offsets for each tileline, as well as other data (priorities ? additional flags ?) All moving objects (cars, etc) are displayed on tilemap 3. ------------------------------------ Cheat : $e210 - timer ************************************/ #include "emu.h" #include "includes/ssrj.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" #include "screen.h" #include "speaker.h" void ssrj_state::machine_start() { save_item(NAME(m_oldport)); } void ssrj_state::machine_reset() { uint8_t *rom = memregion("maincpu")->base(); memset(&rom[0xc000], 0 ,0x3fff); /* req for some control types */ m_oldport = 0x80; } READ8_MEMBER(ssrj_state::wheel_r) { int port = ioport("IN1")->read() - 0x80; int retval = port - m_oldport; m_oldport = port; return retval; } void ssrj_state::ssrj_map(address_map &map) { map(0x0000, 0x7fff).rom(); map(0xc000, 0xc7ff).ram().w(this, FUNC(ssrj_state::vram1_w)).share("vram1"); map(0xc800, 0xcfff).ram().w(this, FUNC(ssrj_state::vram2_w)).share("vram2"); map(0xd000, 0xd7ff).ram().share("vram3"); map(0xd800, 0xdfff).ram().w(this, FUNC(ssrj_state::vram4_w)).share("vram4"); map(0xe000, 0xe7ff).ram(); map(0xe800, 0xefff).ram().share("scrollram"); map(0xf000, 0xf000).portr("IN0"); map(0xf001, 0xf001).r(this, FUNC(ssrj_state::wheel_r)); map(0xf002, 0xf002).portr("IN2"); map(0xf003, 0xf003).nopw(); /* unknown */ map(0xf401, 0xf401).r("aysnd", FUNC(ay8910_device::data_r)); map(0xf400, 0xf401).w("aysnd", FUNC(ay8910_device::address_data_w)); map(0xf800, 0xf800).nopw(); /* wheel ? */ map(0xfc00, 0xfc00).nopw(); /* unknown */ } static INPUT_PORTS_START( ssrj ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_TILT ) PORT_BIT( 0xe0, 0x00, IPT_PEDAL ) PORT_MINMAX(0,0xe0) PORT_SENSITIVITY(50) PORT_KEYDELTA(0x20) PORT_START("IN1") PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(50) PORT_KEYDELTA(4) PORT_REVERSE PORT_START("IN2") PORT_BIT( 0xf, IP_ACTIVE_LOW, IPT_BUTTON2 ) /* code @ $eef , tested when controls = type4 */ PORT_DIPNAME( 0x30, 0x00, DEF_STR( Difficulty ) ) /* ??? code @ $62c */ PORT_DIPSETTING( 0x10, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x00, DEF_STR( Normal ) ) PORT_DIPSETTING( 0x20, DEF_STR( Difficult ) ) PORT_DIPSETTING( 0x30, DEF_STR( Very_Difficult ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Free_Play ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, "No Hit" ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN3") PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x07, DEF_STR( 4C_1C ) ) PORT_DIPSETTING( 0x06, DEF_STR( 3C_1C ) ) PORT_DIPSETTING( 0x05, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x03, DEF_STR( 1C_4C ) ) PORT_DIPNAME( 0x08, 0x08, "Freeze" ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x30, 0x00, DEF_STR( Controls ) ) /* 'press button to start' message, and wait for button2 */ PORT_DIPSETTING( 0x00, "Type 1" ) PORT_DIPSETTING( 0x10, "Type 2" ) PORT_DIPSETTING( 0x20, "Type 3" ) PORT_DIPSETTING( 0x30, "Type 4" ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* sometimes hangs after game over ($69b) */ INPUT_PORTS_END static const gfx_layout charlayout = { 8,8, /* 8*8 characters */ RGN_FRAC(1,3), /* 1024 characters */ 3, /* 3 bits per pixel */ { 0, RGN_FRAC(2,3), RGN_FRAC(1,3) }, /* the bitplanes are separated */ { 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 /* every char takes 8 consecutive bytes */ }; static GFXDECODE_START( gfx_ssrj ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 0x10 ) GFXDECODE_END MACHINE_CONFIG_START(ssrj_state::ssrj) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80,8000000/2) MCFG_DEVICE_PROGRAM_MAP(ssrj_map) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", ssrj_state, irq0_line_hold) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_SIZE(40*8, 32*8) MCFG_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 1*8, 31*8-1) // unknown res MCFG_SCREEN_UPDATE_DRIVER(ssrj_state, screen_update) MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(*this, ssrj_state, screen_vblank)) MCFG_SCREEN_PALETTE("palette") MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_ssrj) MCFG_PALETTE_ADD("palette", 128) MCFG_PALETTE_INIT_OWNER(ssrj_state, ssrj) /* sound hardware */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("aysnd", AY8910, 8000000/5) MCFG_AY8910_PORT_B_READ_CB(IOPORT("IN3")) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30) MACHINE_CONFIG_END /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( ssrj ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "a40-01.bin", 0x0000, 0x4000, CRC(1ff7dbff) SHA1(a9e676ee087141d62f880cd98e7748db1e6e9461) ) ROM_LOAD( "a40-02.bin", 0x4000, 0x4000, CRC(bbb36f9f) SHA1(9f85bac639d18ee932273a6c00b36ac969e69bb8) ) ROM_REGION( 0x6000, "gfx1", 0 ) ROM_LOAD( "a40-03.bin", 0x0000, 0x2000, CRC(3753182a) SHA1(3eda34f967563b11416344da87b7be46cbecff2b) ) ROM_LOAD( "a40-04.bin", 0x2000, 0x2000, CRC(96471816) SHA1(e24b690085602b8bde079e596c2879deab128c83) ) ROM_LOAD( "a40-05.bin", 0x4000, 0x2000, CRC(dce9169e) SHA1(2cdda1453b2913fad931788e1db0bc01ce923a04) ) ROM_REGION( 0x100, "proms", 0 ) ROM_LOAD( "proms", 0x0000, 0x0100, NO_DUMP ) ROM_END GAME( 1985, ssrj, 0, ssrj, ssrj, ssrj_state, empty_init, ROT90, "Taito Corporation", "Super Speed Race Junior (Japan)", MACHINE_WRONG_COLORS | MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE )