// license:BSD-3-Clause // copyright-holders:hap /*************************************************************************** Italian bootleg of Head On, by EFG Sanremo (late 70s to early 80s). The game title is unknown. Someone wrote FOOL RACE on a piece of tape on the pcb, but that's not really credible. It's on much cheaper hardware than the original: 8080 instead of Z80, and less RAM needed with the gfx tiles being on ROM. TODO: - Sound is unknown, probably simple and discrete - wrong coin handling, it writes to port $01 to reset coin status? - other unknown writes - dipswitch settings Sounds: - Port 0,20 dot (can use invaders hit sound) - Port 1,40 skid (can use invaders shoot sound) - Port 1,80 crash - Port 1,10 could be car motor sound Other outs: - Port 0,FF when coins inserted - Port 2,0 ; 7,0 ; 8,0 unknown - Port 3,1 while game is running - Port 1,0 i assume is silence during attract mode ***************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "emupal.h" #include "screen.h" #include "tilemap.h" class headonb_state : public driver_device { public: headonb_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_gfxdecode(*this, "gfxdecode"), m_video_ram(*this, "video_ram") { } void headonb(machine_config &config); private: required_device m_maincpu; required_device m_gfxdecode; required_shared_ptr m_video_ram; tilemap_t *m_tilemap; DECLARE_WRITE8_MEMBER(video_ram_w); virtual void video_start() override; uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); TILE_GET_INFO_MEMBER(get_tile_info); void headonb_io_map(address_map &map); void headonb_map(address_map &map); }; /*************************************************************************** Video ***************************************************************************/ TILE_GET_INFO_MEMBER(headonb_state::get_tile_info) { uint8_t code = m_video_ram[tile_index]; SET_TILE_INFO_MEMBER(0, code, 0, 0); } void headonb_state::video_start() { m_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(headonb_state::get_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32); } uint32_t headonb_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; } /*************************************************************************** I/O ***************************************************************************/ WRITE8_MEMBER(headonb_state::video_ram_w) { m_video_ram[offset] = data; m_tilemap->mark_tile_dirty(offset); } void headonb_state::headonb_map(address_map &map) { map(0x0000, 0x3fff).rom().mirror(0x4000); map(0xe000, 0xe3ff).ram().w(FUNC(headonb_state::video_ram_w)).share("video_ram"); map(0xff00, 0xffff).ram(); } void headonb_state::headonb_io_map(address_map &map) { map(0x01, 0x01).portr("IN0"); map(0x04, 0x04).portr("IN1"); } /*************************************************************************** Inputs ***************************************************************************/ static INPUT_PORTS_START( headonb ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // must be low? PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) // wrong PORT_START("IN1") PORT_DIPUNKNOWN( 0x01, 0x01 ) PORT_DIPUNKNOWN( 0x02, 0x02 ) PORT_DIPUNKNOWN( 0x04, 0x04 ) PORT_DIPUNKNOWN( 0x08, 0x08 ) PORT_DIPUNKNOWN( 0x10, 0x10 ) PORT_DIPUNKNOWN( 0x20, 0x20 ) PORT_DIPUNKNOWN( 0x40, 0x40 ) PORT_DIPUNKNOWN( 0x80, 0x80 ) INPUT_PORTS_END /*************************************************************************** Machine Config ***************************************************************************/ static const gfx_layout charlayout = { 8,8, RGN_FRAC(1,1), 1, { 0 }, { 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_headonb ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) GFXDECODE_END void headonb_state::headonb(machine_config &config) { /* basic machine hardware */ I8080A(config, m_maincpu, XTAL(20'000'000) / 10); // divider guessed m_maincpu->set_addrmap(AS_PROGRAM, &headonb_state::headonb_map); m_maincpu->set_addrmap(AS_IO, &headonb_state::headonb_io_map); m_maincpu->set_vblank_int("screen", FUNC(headonb_state::irq0_line_hold)); // where is irqack? /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); screen.set_size(32*8, 32*8); screen.set_visarea(0*8, 32*8-1, 0*8, 28*8-1); screen.set_screen_update(FUNC(headonb_state::screen_update)); screen.set_palette("palette"); GFXDECODE(config, m_gfxdecode, "palette", gfx_headonb); PALETTE(config, "palette", palette_device::MONOCHROME); /* sound hardware */ // TODO } /*************************************************************************** Game drivers ***************************************************************************/ ROM_START( headonb ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "1.bin", 0x0000, 0x0400, CRC(11586f44) SHA1(95426bbae19e152c103ac589e62e5f7c803a9bd0) ) // sldh ROM_LOAD( "2.bin", 0x0400, 0x0400, CRC(c3449b99) SHA1(68f0af22c9f3ca971ac7fd5909bb7991d3a0474a) ) // sldh ROM_LOAD( "3.bin", 0x0800, 0x0400, CRC(9c80b99e) SHA1(4443151df7b2833a7534451fbebf89650266c01e) ) // sldh ROM_LOAD( "4.bin", 0x0c00, 0x0400, CRC(ed5ecc4e) SHA1(2f30e3090ff303c4198aa94f97d571ccc3b2b42e) ) // sldh ROM_LOAD( "5.bin", 0x2000, 0x0400, CRC(13cdb6da) SHA1(c58c262e7e880ef199d22d538bfb865eb03e0386) ) // sldh ROM_LOAD( "6.bin", 0x2400, 0x0400, CRC(e498d21b) SHA1(6f7beb44ce69f448540f594b231a9d9f673916dc) ) // sldh ROM_LOAD( "7.bin", 0x2800, 0x0400, CRC(ce2ef8d9) SHA1(87cdddf78b05078338de1711ba7ee17f7faa76c5) ) ROM_LOAD( "8.bin", 0x2c00, 0x0400, CRC(85f216e0) SHA1(629a512b25d17a23be4ca92f43c29e6b969d690f) ) ROM_REGION( 0x0800, "gfx1", 0 ) ROM_LOAD( "10.bin", 0x0000, 0x0400, CRC(198f4671) SHA1(129b4575c4148b4aef16c0dd047f4d62fa6a3b17) ) ROM_LOAD( "9.bin", 0x0400, 0x0400, CRC(2b4d3afe) SHA1(f5f49c6b1b9b44f8922825cbbc563549c8eab97b) ) ROM_END GAME( 1979, headonb, headon, headonb, headonb, headonb_state, empty_init, ROT0, "bootleg (EFG Sanremo)", "Head On (bootleg on dedicated hardware)", MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )