// license:BSD-3-Clause // copyright-holders:Stefan Jokisch /*************************************************************************** Atari Drag Race Driver ***************************************************************************/ #include "emu.h" #include "includes/dragrace.h" #include "cpu/m6800/m6800.h" #include "machine/74259.h" #include "sound/discrete.h" #include "speaker.h" #include "dragrace.lh" TIMER_DEVICE_CALLBACK_MEMBER(dragrace_state::dragrace_frame_callback) { static const char *const portnames[] = { "P1", "P2" }; for (int i = 0; i < 2; i++) { switch (ioport(portnames[i])->read()) { case 0x01: m_gear[i] = 1; break; case 0x02: m_gear[i] = 2; break; case 0x04: m_gear[i] = 3; break; case 0x08: m_gear[i] = 4; break; case 0x10: m_gear[i] = 0; break; } } output().set_value("P1gear", m_gear[0]); output().set_value("P2gear", m_gear[1]); /* watchdog is disabled during service mode */ m_watchdog->watchdog_enable(ioport("IN0")->read() & 0x20); } void dragrace_state::speed1_w(uint8_t data) { unsigned freq = ~data & 0x1f; m_discrete->write(DRAGRACE_MOTOR1_DATA, freq); // the tachometers are driven from the same frequency generator that creates the engine sound output().set_value("tachometer", freq); } void dragrace_state::speed2_w(uint8_t data) { unsigned freq = ~data & 0x1f; m_discrete->write(DRAGRACE_MOTOR2_DATA, freq); // the tachometers are driven from the same frequency generator that creates the engine sound output().set_value("tachometer2", freq); } uint8_t dragrace_state::dragrace_input_r(offs_t offset) { int val = ioport("IN2")->read(); static const char *const portnames[] = { "IN0", "IN1" }; uint8_t maskA = 1 << (offset % 8); uint8_t maskB = 1 << (offset / 8); for (int i = 0; i < 2; i++) { int in = ioport(portnames[i])->read(); if (m_gear[i] != 0) in &= ~(1 << m_gear[i]); if (in & maskA) val |= 1 << i; } return (val & maskB) ? 0xff : 0x7f; } uint8_t dragrace_state::dragrace_steering_r() { int bitA[2]; int bitB[2]; static const char *const dialnames[] = { "DIAL1", "DIAL2" }; for (int i = 0; i < 2; i++) { int dial = ioport(dialnames[i])->read(); bitA[i] = ((dial + 1) / 2) & 1; bitB[i] = ((dial + 0) / 2) & 1; } return (bitA[0] << 0) | (bitB[0] << 1) | (bitA[1] << 2) | (bitB[1] << 3); } uint8_t dragrace_state::dragrace_scanline_r() { return (m_screen->vpos() ^ 0xf0) | 0x0f; } void dragrace_state::dragrace_map(address_map &map) { map(0x0080, 0x00ff).ram(); map(0x0800, 0x083f).r(FUNC(dragrace_state::dragrace_input_r)); map(0x0900, 0x0907).w("latch_f5", FUNC(addressable_latch_device::write_d0)); map(0x0908, 0x090f).w("latch_a5", FUNC(addressable_latch_device::write_d0)); map(0x0910, 0x0917).w("latch_h5", FUNC(addressable_latch_device::write_d0)); map(0x0918, 0x091f).w("latch_e5", FUNC(addressable_latch_device::write_d0)); map(0x0920, 0x0927).w("latch_f5", FUNC(addressable_latch_device::clear)); map(0x0928, 0x092f).w("latch_a5", FUNC(addressable_latch_device::clear)); map(0x0930, 0x0937).w("latch_h5", FUNC(addressable_latch_device::clear)); map(0x0938, 0x093f).w("latch_e5", FUNC(addressable_latch_device::clear)); map(0x0a00, 0x0aff).writeonly().share("playfield_ram"); map(0x0b00, 0x0bff).writeonly().share("position_ram"); map(0x0c00, 0x0c00).r(FUNC(dragrace_state::dragrace_steering_r)); map(0x0d00, 0x0d00).r(FUNC(dragrace_state::dragrace_scanline_r)); map(0x0e00, 0x0eff).w(m_watchdog, FUNC(watchdog_timer_device::reset_w)); map(0x1000, 0x1fff).rom(); /* program */ map(0xf800, 0xffff).rom(); /* program mirror */ } static INPUT_PORTS_START( dragrace ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Player 1 Gas") PORT_PLAYER(1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 1 gear 1 */ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 1 gear 2 */ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 1 gear 3 */ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 1 gear 4 */ PORT_SERVICE( 0x20, IP_ACTIVE_LOW ) PORT_DIPNAME( 0xc0, 0x80, "Extended Play" ) PORT_DIPSETTING( 0x00, "6.9 seconds" ) PORT_DIPSETTING( 0x80, "5.9 seconds" ) PORT_DIPSETTING( 0x40, "4.9 seconds" ) PORT_DIPSETTING( 0xc0, "Never" ) PORT_START("IN1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("Player 2 Gas") PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 2 gear 1 */ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 2 gear 2 */ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 2 gear 3 */ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) /* player 2 gear 4 */ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_DIPNAME( 0xc0, 0x80, "Number Of Heats" ) PORT_DIPSETTING( 0xc0, "3" ) PORT_DIPSETTING( 0x80, "4" ) PORT_DIPSETTING( 0x00, "5" ) PORT_START("IN2") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) /* IN0 connects here */ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) /* IN1 connects here */ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START1 ) PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 ) PORT_DIPNAME( 0xc0, 0x40, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0xc0, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x40, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x80, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) PORT_START("DIAL1") PORT_BIT( 0xff, 0x00, IPT_DIAL_V ) PORT_SENSITIVITY(25) PORT_KEYDELTA(10) PORT_PLAYER(1) PORT_START("DIAL2") PORT_BIT( 0xff, 0x00, IPT_DIAL_V ) PORT_SENSITIVITY(25) PORT_KEYDELTA(10) PORT_PLAYER(2) PORT_START("P1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Player 1 Gear 1") PORT_PLAYER(1) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Player 1 Gear 2") PORT_PLAYER(1) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Player 1 Gear 3") PORT_PLAYER(1) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Player 1 Gear 4") PORT_PLAYER(1) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Player 1 Neutral") PORT_PLAYER(1) PORT_START("P2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Player 2 Gear 1") PORT_PLAYER(2) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Player 2 Gear 2") PORT_PLAYER(2) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Player 2 Gear 3") PORT_PLAYER(2) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Player 2 Gear 4") PORT_PLAYER(2) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Player 2 Neutral") PORT_PLAYER(2) PORT_START("MOTOR1") PORT_ADJUSTER( 81, "Motor 1 RPM" ) PORT_START("MOTOR2") PORT_ADJUSTER( 85, "Motor 2 RPM" ) INPUT_PORTS_END static const gfx_layout dragrace_tile_layout1 = { 16, 16, /* width, height */ 0x40, /* total */ 1, /* planes */ { 0 }, /* plane offsets */ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87 }, { 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38, 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78 }, 0x100 /* increment */ }; static const gfx_layout dragrace_tile_layout2 = { 16, 16, /* width, height */ 0x20, /* total */ 2, /* planes */ { /* plane offsets */ 0x0000, 0x2000 }, { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87 }, { 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38, 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78 }, 0x100 /* increment */ }; static GFXDECODE_START( gfx_dragrace ) GFXDECODE_ENTRY( "gfx1", 0, dragrace_tile_layout1, 0, 4 ) GFXDECODE_ENTRY( "gfx2", 0, dragrace_tile_layout2, 8, 2 ) GFXDECODE_END void dragrace_state::dragrace_palette(palette_device &palette) const { palette.set_pen_color(0, rgb_t(0xff, 0xff, 0xff)); // 2 color tiles palette.set_pen_color(1, rgb_t(0x00, 0x00, 0x00)); palette.set_pen_color(2, rgb_t(0x00, 0x00, 0x00)); palette.set_pen_color(3, rgb_t(0xff, 0xff, 0xff)); palette.set_pen_color(4, rgb_t(0x00, 0x00, 0x00)); palette.set_pen_color(5, rgb_t(0x00, 0x00, 0x00)); palette.set_pen_color(6, rgb_t(0xff, 0xff, 0xff)); palette.set_pen_color(7, rgb_t(0xff, 0xff, 0xff)); palette.set_pen_color(8, rgb_t(0xff, 0xff, 0xff)); // 4 color tiles palette.set_pen_color(9, rgb_t(0xb0, 0xb0, 0xb0)); palette.set_pen_color(10,rgb_t(0x5f, 0x5f, 0x5f)); palette.set_pen_color(11,rgb_t(0x00, 0x00, 0x00)); palette.set_pen_color(12,rgb_t(0xff, 0xff, 0xff)); palette.set_pen_color(13,rgb_t(0x5f, 0x5f, 0x5f)); palette.set_pen_color(14,rgb_t(0xb0, 0xb0, 0xb0)); palette.set_pen_color(15,rgb_t(0x00, 0x00, 0x00)); } void dragrace_state::machine_start() { save_item(NAME(m_gear)); } void dragrace_state::machine_reset() { m_gear[0] = 0; m_gear[1] = 0; } void dragrace_state::dragrace(machine_config &config) { /* basic machine hardware */ M6800(config, m_maincpu, 12.096_MHz_XTAL / 12); m_maincpu->set_addrmap(AS_PROGRAM, &dragrace_state::dragrace_map); m_maincpu->set_periodic_int(FUNC(dragrace_state::irq0_line_hold), attotime::from_hz(4*60)); WATCHDOG_TIMER(config, m_watchdog).set_vblank_count("screen", 8); TIMER(config, "frame_timer").configure_periodic(FUNC(dragrace_state::dragrace_frame_callback), attotime::from_hz(60)); /* video hardware */ SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_refresh_hz(60); m_screen->set_size(256, 262); m_screen->set_visarea(0, 255, 0, 239); m_screen->set_screen_update(FUNC(dragrace_state::screen_update_dragrace)); m_screen->set_palette("palette"); GFXDECODE(config, m_gfxdecode, "palette", gfx_dragrace); PALETTE(config, "palette", FUNC(dragrace_state::dragrace_palette), 16); /* sound hardware */ SPEAKER(config, "lspeaker").front_left(); SPEAKER(config, "rspeaker").front_right(); DISCRETE(config, m_discrete, dragrace_discrete); m_discrete->add_route(0, "lspeaker", 1.0); m_discrete->add_route(1, "rspeaker", 1.0); f9334_device &latch_f5(F9334(config, "latch_f5")); // F5 latch_f5.parallel_out_cb().set(FUNC(dragrace_state::speed1_w)).mask(0x1f); // set 3SPEED1-7SPEED1 latch_f5.q_out_cb<5>().set(m_discrete, FUNC(discrete_device::write_line)); // Explosion1 enable latch_f5.q_out_cb<6>().set(m_discrete, FUNC(discrete_device::write_line)); // Screech1 enable f9334_device &latch_a5(F9334(config, "latch_a5")); // A5 latch_a5.q_out_cb<1>().set(m_discrete, FUNC(discrete_device::write_line)); // KLEXPL1 enable latch_a5.q_out_cb<3>().set(m_discrete, FUNC(discrete_device::write_line)); // Motor1 enable latch_a5.q_out_cb<4>().set(m_discrete, FUNC(discrete_device::write_line)); // Attract enable latch_a5.q_out_cb<5>().set(m_discrete, FUNC(discrete_device::write_line)); // LoTone enable latch_a5.q_out_cb<7>().set_output("led0"); // Player 1 Start Lamp f9334_device &latch_h5(F9334(config, "latch_h5")); // H5 latch_h5.parallel_out_cb().set(FUNC(dragrace_state::speed2_w)).mask(0x1f); // set 3SPEED2-7SPEED2 latch_h5.q_out_cb<5>().set(m_discrete, FUNC(discrete_device::write_line)); // Explosion2 enable latch_h5.q_out_cb<6>().set(m_discrete, FUNC(discrete_device::write_line)); // Screech2 enable f9334_device &latch_e5(F9334(config, "latch_e5")); // E5 latch_e5.q_out_cb<1>().set(m_discrete, FUNC(discrete_device::write_line)); // KLEXPL2 enable latch_e5.q_out_cb<3>().set(m_discrete, FUNC(discrete_device::write_line)); // Motor2 enable latch_e5.q_out_cb<5>().set(m_discrete, FUNC(discrete_device::write_line)); // HiTone enable latch_e5.q_out_cb<7>().set_output("led1"); // Player 2 Start Lamp } ROM_START( dragrace ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "8513.c1", 0x1000, 0x0800, CRC(543bbb30) SHA1(646a41d1124c8365f07a93de38af007895d7d263) ) ROM_LOAD( "8514.a1", 0x1800, 0x0800, CRC(ad218690) SHA1(08ba5f4fa4c75d8dad1a7162888d44b3349cbbe4) ) ROM_RELOAD( 0xf800, 0x0800 ) ROM_REGION( 0x800, "gfx1", 0 ) /* 2 color tiles */ ROM_LOAD( "8519dr.j0", 0x000, 0x200, CRC(aa221ba0) SHA1(450acbf349d77a790a25f3e303c31b38cc426a38) ) ROM_LOAD( "8521dr.k0", 0x200, 0x200, CRC(0cb33f12) SHA1(d50cb55391aec03e064eecad1624d50d4c30ccab) ) ROM_LOAD( "8520dr.r0", 0x400, 0x200, CRC(ee1ae6a7) SHA1(83491095260c8b7c616ff17ec1e888d05620f166) ) ROM_REGION( 0x800, "gfx2", 0 ) /* 4 color tiles */ ROM_LOAD( "8515dr.e0", 0x000, 0x200, CRC(9510a59e) SHA1(aea0782b919279efe55a07007bd55a16f7f59239) ) ROM_LOAD( "8517dr.h0", 0x200, 0x200, CRC(8b5bff1f) SHA1(fdcd719c66bff7c4b9f3d56d1e635259dd8add61) ) ROM_LOAD( "8516dr.l0", 0x400, 0x200, CRC(d1e74af1) SHA1(f55a3bfd7d152ac9af128697f55c9a0c417779f5) ) ROM_LOAD( "8518dr.n0", 0x600, 0x200, CRC(b1369028) SHA1(598a8779982d532c9f34345e793a79fcb29cac62) ) ROM_REGION( 0x100, "sync", 0 ) /* sync prom located at L8, it's a 82s129 */ ROM_LOAD( "l8.bin", 0x000, 0x100, CRC(3610b453) SHA1(9e33ee04f22a9174c29fafb8e71781fa330a7a08) ) ROM_END GAMEL( 1977, dragrace, 0, dragrace, dragrace, dragrace_state, empty_init, 0, "Atari (Kee Games)", "Drag Race", MACHINE_SUPPORTS_SAVE, layout_dragrace )