/*************************************************************************** Atari Drag Race Driver ***************************************************************************/ #include "driver.h" #include "cpu/m6800/m6800.h" #include "deprecat.h" #include "dragrace.h" #include "sound/discrete.h" static unsigned dragrace_misc_flags = 0; static int dragrace_gear[2]; static TIMER_CALLBACK( dragrace_frame_callback ) { int i; static const char *const portnames[] = { "P1", "P2" }; for (i = 0; i < 2; i++) { switch (input_port_read(machine, portnames[i])) { case 0x01: dragrace_gear[i] = 1; break; case 0x02: dragrace_gear[i] = 2; break; case 0x04: dragrace_gear[i] = 3; break; case 0x08: dragrace_gear[i] = 4; break; case 0x10: dragrace_gear[i] = 0; break; } } /* watchdog is disabled during service mode */ watchdog_enable(machine, input_port_read(machine, "IN0") & 0x20); } static MACHINE_RESET( dragrace ) { timer_pulse(machine, video_screen_get_frame_period(machine->primary_screen), NULL, 0, dragrace_frame_callback); } static void dragrace_update_misc_flags(const address_space *space) { const device_config *discrete = devtag_get_device(space->machine, "discrete"); /* 0x0900 = set 3SPEED1 0x00000001 * 0x0901 = set 4SPEED1 0x00000002 * 0x0902 = set 5SPEED1 0x00000004 * 0x0903 = set 6SPEED1 0x00000008 * 0x0904 = set 7SPEED1 0x00000010 * 0x0905 = set EXPLOSION1 0x00000020 * 0x0906 = set SCREECH1 0x00000040 * 0x0920 - 0x0927 = clear 0x0900 - 0x0907 * 0x0909 = set KLEXPL1 0x00000200 * 0x090b = set MOTOR1 0x00000800 * 0x090c = set ATTRACT 0x00001000 * 0x090d = set LOTONE 0x00002000 * 0x090f = set Player 1 Start Lamp 0x00008000 * 0x0928 - 0x092f = clear 0x0908 - 0x090f * 0x0910 = set 3SPEED2 0x00010000 * 0x0911 = set 4SPEED2 0x00020000 * 0x0912 = set 5SPEED2 0x00040000 * 0x0913 = set 6SPEED2 0x00080000 * 0x0914 = set 7SPEED2 0x00100000 * 0x0915 = set EXPLOSION2 0x00200000 * 0x0916 = set SCREECH2 0x00400000 * 0x0930 = clear 0x0910 - 0x0917 * 0x0919 = set KLEXPL2 0x02000000 * 0x091b = set MOTOR2 0x08000000 * 0x091d = set HITONE 0x20000000 * 0x091f = set Player 2 Start Lamp 0x80000000 * 0x0938 = clear 0x0918 - 0x091f */ set_led_status(0, dragrace_misc_flags & 0x00008000); set_led_status(1, dragrace_misc_flags & 0x80000000); discrete_sound_w(discrete, DRAGRACE_MOTOR1_DATA, ~dragrace_misc_flags & 0x0000001f); // Speed1 data* discrete_sound_w(discrete, DRAGRACE_EXPLODE1_EN, (dragrace_misc_flags & 0x00000020) ? 1: 0); // Explosion1 enable discrete_sound_w(discrete, DRAGRACE_SCREECH1_EN, (dragrace_misc_flags & 0x00000040) ? 1: 0); // Screech1 enable discrete_sound_w(discrete, DRAGRACE_KLEXPL1_EN, (dragrace_misc_flags & 0x00000200) ? 1: 0); // KLEXPL1 enable discrete_sound_w(discrete, DRAGRACE_MOTOR1_EN, (dragrace_misc_flags & 0x00000800) ? 1: 0); // Motor1 enable discrete_sound_w(discrete, DRAGRACE_MOTOR2_DATA, (~dragrace_misc_flags & 0x001f0000) >> 0x10); // Speed2 data* discrete_sound_w(discrete, DRAGRACE_EXPLODE2_EN, (dragrace_misc_flags & 0x00200000) ? 1: 0); // Explosion2 enable discrete_sound_w(discrete, DRAGRACE_SCREECH2_EN, (dragrace_misc_flags & 0x00400000) ? 1: 0); // Screech2 enable discrete_sound_w(discrete, DRAGRACE_KLEXPL2_EN, (dragrace_misc_flags & 0x02000000) ? 1: 0); // KLEXPL2 enable discrete_sound_w(discrete, DRAGRACE_MOTOR2_EN, (dragrace_misc_flags & 0x08000000) ? 1: 0); // Motor2 enable discrete_sound_w(discrete, DRAGRACE_ATTRACT_EN, (dragrace_misc_flags & 0x00001000) ? 1: 0); // Attract enable discrete_sound_w(discrete, DRAGRACE_LOTONE_EN, (dragrace_misc_flags & 0x00002000) ? 1: 0); // LoTone enable discrete_sound_w(discrete, DRAGRACE_HITONE_EN, (dragrace_misc_flags & 0x20000000) ? 1: 0); // HiTone enable } static WRITE8_HANDLER( dragrace_misc_w ) { /* Set/clear individual bit */ UINT32 mask = 1 << offset; if (data & 0x01) dragrace_misc_flags |= mask; else dragrace_misc_flags &= (~mask); logerror("Set %#6x, Mask=%#10x, Flag=%#10x, Data=%x\n", 0x0900+offset, mask, dragrace_misc_flags, data & 0x01); dragrace_update_misc_flags(space); } static WRITE8_HANDLER( dragrace_misc_clear_w ) { /* Clear 8 bits */ UINT32 mask = 0xff << (((offset >> 3) & 0x03) * 8); dragrace_misc_flags &= (~mask); logerror("Clear %#6x, Mask=%#10x, Flag=%#10x, Data=%x\n", 0x0920+offset, mask, dragrace_misc_flags, data & 0x01); dragrace_update_misc_flags(space); } static READ8_HANDLER( dragrace_input_r ) { int val = input_port_read(space->machine, "IN2"); static const char *const portnames[] = { "IN0", "IN1" }; UINT8 maskA = 1 << (offset % 8); UINT8 maskB = 1 << (offset / 8); int i; for (i = 0; i < 2; i++) { int in = input_port_read(space->machine, portnames[i]); if (dragrace_gear[i] != 0) { in &= ~(1 << dragrace_gear[i]); } if (in & maskA) { val |= 1 << i; } } return (val & maskB) ? 0xFF : 0x7F; } static READ8_HANDLER( dragrace_steering_r ) { int bitA[2]; int bitB[2]; static const char *const dialnames[] = { "DIAL1", "DIAL2" }; int i; for (i = 0; i < 2; i++) { int dial = input_port_read(space->machine, dialnames[i]); 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); } static READ8_HANDLER( dragrace_scanline_r ) { return (video_screen_get_vpos(space->machine->primary_screen) ^ 0xf0) | 0x0f; } static ADDRESS_MAP_START( dragrace_readmem, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0080, 0x00ff) AM_READ(SMH_RAM) AM_RANGE(0x0800, 0x083f) AM_READ(dragrace_input_r) AM_RANGE(0x0c00, 0x0c00) AM_READ(dragrace_steering_r) AM_RANGE(0x0d00, 0x0d00) AM_READ(dragrace_scanline_r) AM_RANGE(0x1000, 0x1fff) AM_READ(SMH_ROM) /* program */ AM_RANGE(0xf800, 0xffff) AM_READ(SMH_ROM) /* program mirror */ ADDRESS_MAP_END static ADDRESS_MAP_START( dragrace_writemem, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0080, 0x00ff) AM_WRITE(SMH_RAM) AM_RANGE(0x0900, 0x091f) AM_WRITE(dragrace_misc_w) AM_RANGE(0x0920, 0x093f) AM_WRITE(dragrace_misc_clear_w) AM_RANGE(0x0a00, 0x0aff) AM_WRITE(SMH_RAM) AM_BASE(&dragrace_playfield_ram) AM_RANGE(0x0b00, 0x0bff) AM_WRITE(SMH_RAM) AM_BASE(&dragrace_position_ram) AM_RANGE(0x0e00, 0x0eff) AM_WRITE(watchdog_reset_w) AM_RANGE(0x1000, 0x1fff) AM_WRITE(SMH_ROM) /* program */ AM_RANGE(0xf800, 0xffff) AM_WRITE(SMH_ROM) /* program mirror */ ADDRESS_MAP_END static INPUT_PORTS_START( dragrace ) PORT_START("IN0") /* 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") /* 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") /* 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") /* IN3 */ PORT_BIT( 0xff, 0x00, IPT_DIAL_V ) PORT_SENSITIVITY(25) PORT_KEYDELTA(10) PORT_PLAYER(1) PORT_START("DIAL2") /* IN4 */ PORT_BIT( 0xff, 0x00, IPT_DIAL_V ) PORT_SENSITIVITY(25) PORT_KEYDELTA(10) PORT_PLAYER(2) PORT_START("P1") /* IN5 */ 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") /* IN6 */ 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( dragrace ) GFXDECODE_ENTRY( "gfx1", 0, dragrace_tile_layout1, 0, 4 ) GFXDECODE_ENTRY( "gfx2", 0, dragrace_tile_layout2, 8, 2 ) GFXDECODE_END static PALETTE_INIT( dragrace ) { palette_set_color(machine, 0, MAKE_RGB(0xFF, 0xFF, 0xFF)); /* 2 color tiles */ palette_set_color(machine, 1, MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 2, MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 3, MAKE_RGB(0xFF, 0xFF, 0xFF)); palette_set_color(machine, 4, MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 5, MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 6, MAKE_RGB(0xFF, 0xFF, 0xFF)); palette_set_color(machine, 7, MAKE_RGB(0xFF, 0xFF, 0xFF)); palette_set_color(machine, 8, MAKE_RGB(0xFF, 0xFF, 0xFF)); /* 4 color tiles */ palette_set_color(machine, 9, MAKE_RGB(0xB0, 0xB0, 0xB0)); palette_set_color(machine, 10,MAKE_RGB(0x5F, 0x5F, 0x5F)); palette_set_color(machine, 11,MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 12,MAKE_RGB(0xFF, 0xFF, 0xFF)); palette_set_color(machine, 13,MAKE_RGB(0x5F, 0x5F, 0x5F)); palette_set_color(machine, 14,MAKE_RGB(0xB0, 0xB0, 0xB0)); palette_set_color(machine, 15,MAKE_RGB(0x00, 0x00, 0x00)); } static MACHINE_DRIVER_START( dragrace ) /* basic machine hardware */ MDRV_CPU_ADD("maincpu", M6800, 12096000 / 12) MDRV_CPU_PROGRAM_MAP(dragrace_readmem, dragrace_writemem) MDRV_CPU_VBLANK_INT_HACK(irq0_line_hold, 4) MDRV_WATCHDOG_VBLANK_INIT(8) MDRV_MACHINE_RESET(dragrace) /* video hardware */ MDRV_SCREEN_ADD("screen", RASTER) MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_SIZE(256, 262) MDRV_SCREEN_VISIBLE_AREA(0, 255, 0, 239) MDRV_GFXDECODE(dragrace) MDRV_PALETTE_LENGTH(16) MDRV_PALETTE_INIT(dragrace) MDRV_VIDEO_START(dragrace) MDRV_VIDEO_UPDATE(dragrace) /* sound hardware */ MDRV_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") MDRV_SOUND_ADD("discrete", DISCRETE, 0) MDRV_SOUND_CONFIG_DISCRETE(dragrace) MDRV_SOUND_ROUTE(0, "lspeaker", 1.0) MDRV_SOUND_ROUTE(1, "rspeaker", 1.0) MACHINE_DRIVER_END 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", ROMREGION_DISPOSE ) /* 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", ROMREGION_DISPOSE ) /* 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_END GAME( 1977, dragrace, 0, dragrace, dragrace, 0, 0, "Atari", "Drag Race", 0 )