/*************************************************************************** Atari Canyon Bomber hardware driver by Mike Balfour Games supported: * Canyon Bomber Known issues: * none at this time **************************************************************************** Memory Map: 0000-01FF WRAM 0400-04FF W A0=0:MOTOR1, A0=1:MOTOR2 0500-05FF W A0=0:EXPLODE, A0=1:TIMER RESET 0600-067F W A0=0:WHISTLE1, A0=1:WHISTLE2 0680-06FF W A0=0:LED1, A0=1:LED2 0700-077F W A0=0:ATTRACT1, A0=1:ATTRACT2 0800-0FFF DISPLAY / RAM 1000-17FF SWITCHES 1800-1FFF OPTIONS 2000-27FF ROM1 2800-2FFF ROM2 3000-37FF ROM3 (Language ROM) 3800-3FFF ROM4 (Program ROM) If you have any questions about how this driver works, don't hesitate to ask. - Mike Balfour (mab22@po.cwru.edu) ***************************************************************************/ #include "driver.h" #include "canyon.h" #include "sound/discrete.h" /************************************* * * Palette generation * *************************************/ static PALETTE_INIT( canyon ) { palette_set_color(machine, 0, MAKE_RGB(0x00, 0x00, 0x00)); /* BLACK */ palette_set_color(machine, 1, MAKE_RGB(0xff, 0xff, 0xff)); /* WHITE */ palette_set_color(machine, 2, MAKE_RGB(0x80, 0x80, 0x80)); /* GREY */ colortable[0] = 2; colortable[1] = 0; colortable[2] = 2; colortable[3] = 1; } /************************************* * * Read handlers * *************************************/ static READ8_HANDLER( canyon_switches_r ) { UINT8 val = 0; if ((readinputport(2) >> (offset & 7)) & 1) { val |= 0x80; } if ((readinputport(1) >> (offset & 3)) & 1) { val |= 0x01; } return val; } static READ8_HANDLER( canyon_options_r ) { return (readinputport(0) >> (2 * (~offset & 3))) & 3; } /************************************* * * Write handlers * *************************************/ static WRITE8_HANDLER( canyon_led_w ) { set_led_status(offset & 0x01, offset & 0x02); } /************************************* * * Main CPU memory handlers * *************************************/ static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 ) ADDRESS_MAP_FLAGS( AMEF_ABITS(14) ) AM_RANGE(0x0000, 0x00ff) AM_MIRROR(0x100) AM_RAM AM_RANGE(0x0400, 0x0401) AM_WRITE(canyon_motor_w) AM_RANGE(0x0500, 0x0500) AM_WRITE(canyon_explode_w) AM_RANGE(0x0501, 0x0501) AM_WRITE(watchdog_reset_w) /* watchdog, disabled in service mode */ AM_RANGE(0x0600, 0x0603) AM_WRITE(canyon_whistle_w) AM_RANGE(0x0680, 0x0683) AM_WRITE(canyon_led_w) AM_RANGE(0x0700, 0x0703) AM_WRITE(canyon_attract_w) AM_RANGE(0x0800, 0x0bff) AM_READWRITE(MRA8_RAM, canyon_videoram_w) AM_BASE(&canyon_videoram) AM_RANGE(0x1000, 0x17ff) AM_READWRITE(canyon_switches_r, MWA8_NOP) /* sloppy code writes here */ AM_RANGE(0x1800, 0x1fff) AM_READ(canyon_options_r) AM_RANGE(0x2000, 0x3fff) AM_ROM ADDRESS_MAP_END /************************************* * * Port definitions * *************************************/ static INPUT_PORTS_START( canyon ) PORT_START /* DSW */ PORT_DIPNAME( 0x03, 0x00, DEF_STR( Language ) ) PORT_DIPSETTING( 0x00, DEF_STR( English ) ) PORT_DIPSETTING( 0x01, DEF_STR( Spanish ) ) PORT_DIPSETTING( 0x02, DEF_STR( French ) ) PORT_DIPSETTING( 0x03, DEF_STR( German ) ) PORT_DIPNAME( 0x30, 0x00, "Misses Per Play" ) PORT_DIPSETTING( 0x00, "3" ) PORT_DIPSETTING( 0x10, "4" ) PORT_DIPSETTING( 0x20, "5" ) PORT_DIPSETTING( 0x30, "6" ) PORT_DIPNAME( 0xC0, 0x80, DEF_STR( Coinage )) PORT_DIPSETTING( 0xC0, DEF_STR( 2C_1C )) PORT_DIPSETTING( 0x80, DEF_STR( 1C_1C )) PORT_DIPSETTING( 0x40, DEF_STR( 1C_2C )) PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) PORT_START /* IN1 */ PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_START /* IN2 */ PORT_BIT ( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_START1 ) PORT_BIT ( 0x08, IP_ACTIVE_HIGH, IPT_START2 ) PORT_SERVICE( 0x10, IP_ACTIVE_HIGH ) PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_VBLANK ) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON7 ) PORT_NAME("Hiscore Reset") PORT_CODE(KEYCODE_H) PORT_BIT ( 0x80, IP_ACTIVE_HIGH, IPT_TILT ) /* SLAM */ PORT_START_TAG("MOTOR1") PORT_ADJUSTER( 20, "Motor 1 RPM" ) PORT_START_TAG("MOTOR2") PORT_ADJUSTER( 30, "Motor 2 RPM" ) PORT_START_TAG("WHISTLE1") PORT_ADJUSTER( 70, "Whistle 1 Freq" ) PORT_START_TAG("WHISTLE2") PORT_ADJUSTER( 80, "Whistle 2 Freq" ) INPUT_PORTS_END /************************************* * * Graphics definitions * *************************************/ static const gfx_layout tile_layout = { 8, 8, 64, 1, { 0 }, { 0x4, 0x5, 0x6, 0x7, 0xC, 0xD, 0xE, 0xF }, { 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70 }, 0x80 }; static const gfx_layout sprite_layout = { 32, 16, 4, 1, { 0 }, { 0x007, 0x006, 0x005, 0x004, 0x003, 0x002, 0x001, 0x000, 0x00F, 0x00E, 0x00D, 0x00C, 0x00B, 0x00A, 0x009, 0x008, 0x107, 0x106, 0x105, 0x104, 0x103, 0x102, 0x101, 0x100, 0x10F, 0x10E, 0x10D, 0x10C, 0x10B, 0x10A, 0x109, 0x108 }, { 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0 }, 0x200 }; static GFXDECODE_START( canyon ) GFXDECODE_ENTRY( REGION_GFX1, 0, tile_layout, 0, 2 ) GFXDECODE_ENTRY( REGION_GFX2, 0, sprite_layout, 0, 2 ) GFXDECODE_END /************************************* * * Machine driver * *************************************/ static MACHINE_DRIVER_START( canyon ) /* basic machine hardware */ MDRV_CPU_ADD(M6502, 12096000 / 16) MDRV_CPU_PROGRAM_MAP(main_map,0) MDRV_CPU_VBLANK_INT(nmi_line_pulse, 1) MDRV_WATCHDOG_VBLANK_INIT(8) MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(22 * 1000000 / 15750)) /* video hardware */ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_SIZE(256, 240) MDRV_SCREEN_VISIBLE_AREA(0, 255, 0, 239) MDRV_GFXDECODE(canyon) MDRV_PALETTE_LENGTH(3) MDRV_COLORTABLE_LENGTH(4) MDRV_PALETTE_INIT(canyon) MDRV_VIDEO_START(canyon) MDRV_VIDEO_UPDATE(canyon) /* sound hardware */ MDRV_SPEAKER_STANDARD_STEREO("left", "right") MDRV_SOUND_ADD_TAG("discrete", DISCRETE, 0) MDRV_SOUND_CONFIG_DISCRETE(canyon) MDRV_SOUND_ROUTE(0, "left", 1.0) MDRV_SOUND_ROUTE(1, "right", 1.0) MACHINE_DRIVER_END /************************************* * * ROM definitions * *************************************/ ROM_START( canyon ) ROM_REGION( 0x4000, REGION_CPU1, 0 ) ROM_LOAD_NIB_LOW ( "9499-01.j1", 0x3000, 0x0400, CRC(31800767) SHA1(d4aebe12d3c45a2a8a361dc6f63e1a6230a78c17) ) ROM_LOAD_NIB_HIGH( "9503-01.p1", 0x3000, 0x0400, CRC(1eddbe28) SHA1(7d30280bf9edff743c16386d7cdec78094477996) ) ROM_LOAD ( "9496-01.d1", 0x3800, 0x0800, CRC(8be15080) SHA1(095c15e9ac91623b2d514858dca2e4c261d36fd0) ) ROM_REGION( 0x0400, REGION_GFX1, ROMREGION_DISPOSE ) ROM_LOAD( "9492-01.n8", 0x0000, 0x0400, CRC(7449f754) SHA1(a8ffc39e1a86c94487551f5026eedbbd066b12c9) ) ROM_REGION( 0x0100, REGION_GFX2, ROMREGION_DISPOSE ) ROM_LOAD_NIB_LOW ( "9506-01.m5", 0x0000, 0x0100, CRC(0d63396a) SHA1(147fae3b02a86310c8d022a7e7cfbf71ea511616) ) ROM_LOAD_NIB_HIGH( "9505-01.n5", 0x0000, 0x0100, CRC(60507c07) SHA1(fcb76890cbaa37e02392bf8b97f7be9a6fe6a721) ) ROM_REGION( 0x0100, REGION_PROMS, 0 ) ROM_LOAD( "9491-01.j6", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync (not used) */ ROM_END ROM_START( canyonp ) ROM_REGION( 0x4000, REGION_CPU1, 0 ) ROM_LOAD_NIB_LOW ( "cbp3000l.j1", 0x3000, 0x0800, CRC(49cf29a0) SHA1(b58f024f45f85e5c2a48a95c60e80fd1be60eaac) ) ROM_LOAD_NIB_HIGH( "cbp3000m.p1", 0x3000, 0x0800, CRC(b4385c23) SHA1(b550dfe9182f2b29aedba160a0917ca78b82f0e7) ) ROM_LOAD_NIB_LOW ( "cbp3800l.h1", 0x3800, 0x0800, CRC(c7ee4431) SHA1(7a0f4454a981c4e9ee27e273e9a8379458e660e5) ) ROM_LOAD_NIB_HIGH( "cbp3800m.r1", 0x3800, 0x0800, CRC(94246a9a) SHA1(5ff8b69fb744a5f62d4cf291e8f25e3620b479e7) ) ROM_REGION( 0x0400, REGION_GFX1, ROMREGION_DISPOSE ) ROM_LOAD( "9492-01.n8", 0x0000, 0x0400, CRC(7449f754) SHA1(a8ffc39e1a86c94487551f5026eedbbd066b12c9) ) ROM_REGION( 0x0100, REGION_GFX2, ROMREGION_DISPOSE ) ROM_LOAD_NIB_LOW ( "9506-01.m5", 0x0000, 0x0100, CRC(0d63396a) SHA1(147fae3b02a86310c8d022a7e7cfbf71ea511616) ) ROM_LOAD_NIB_HIGH( "9505-01.n5", 0x0000, 0x0100, CRC(60507c07) SHA1(fcb76890cbaa37e02392bf8b97f7be9a6fe6a721) ) ROM_REGION( 0x0100, REGION_PROMS, 0 ) ROM_LOAD( "9491-01.j6", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync (not used) */ ROM_END /************************************* * * Game drivers * *************************************/ GAME( 1977, canyon, 0, canyon, canyon, 0, ROT0, "Atari", "Canyon Bomber", 0 ) GAME( 1977, canyonp, canyon, canyon, canyon, 0, ROT0, "Atari", "Canyon Bomber (prototype)", 0 )