/**************************************************************************** Safari Rally hardware driver by Zsolt Vasvari Games Supported: * Safari Rally (Japan) Known issues/to-do's: * SN76477 sound * Background colors are wrong. Flyer shows red and perhaps blue, but I don't see an obvious mapping Notes: * This hardware is a precursor to Phoenix ---------------------------------- CPU board 76477 18MHz 8080 ---------------------------------- Video board RL07 2114 2114 2114 2114 2114 RL01 RL02 2114 RL03 RL04 2114 RL05 RL06 RL08 2114 11MHz ---------------------------------- ****************************************************************************/ #include "driver.h" static UINT8 *ram_1, *ram_2; static size_t ram_size; static UINT8 ram_bank; static tilemap *bg_tilemap, *fg_tilemap; static UINT8 *bg_scroll; /************************************* * * RAM banking * *************************************/ static WRITE8_HANDLER( ram_w ) { if (ram_bank) ram_2[offset] = data; else ram_1[offset] = data; tilemap_mark_tile_dirty((offset & 0x0400) ? bg_tilemap : fg_tilemap, offset & 0x03ff); } static READ8_HANDLER( ram_r ) { return ram_bank ? ram_2[offset] : ram_1[offset]; } static WRITE8_HANDLER( ram_bank_w ) { ram_bank = data & 0x01; tilemap_mark_all_tiles_dirty(ALL_TILEMAPS); } /************************************* * * Video system * *************************************/ static const gfx_layout charlayout = { 8,8, /* 8*8 chars */ 128, /* 128 characters */ 1, /* 1 bit per pixel */ { 0 }, { 7, 6, 5, 4, 3, 2, 1, 0 }, { 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( safarir ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 8 ) GFXDECODE_ENTRY( "gfx2", 0, charlayout, 0, 8 ) GFXDECODE_END static PALETTE_INIT( safarir ) { int i; for (i = 0; i < machine->config->total_colors / 2; i++) { palette_set_color(machine, (i * 2) + 0, RGB_BLACK); palette_set_color(machine, (i * 2) + 1, MAKE_RGB(pal1bit(i >> 2), pal1bit(i >> 1), pal1bit(i >> 0))); } } static TILE_GET_INFO( get_bg_tile_info ) { int color; UINT8 code = ram_r(machine,tile_index | 0x400); /* this is wrong */ if (code & 0x80) color = 6; /* yellow */ else color = 2; /* green */ SET_TILE_INFO(0, code & 0x7f, color, 0); } static TILE_GET_INFO( get_fg_tile_info ) { int color, flags; UINT8 code = ram_r(machine,tile_index); if (code & 0x80) color = 7; /* white */ else color = (~tile_index & 0x04) | ((tile_index >> 1) & 0x03); flags = ((tile_index & 0x1f) >= 0x03) ? 0 : TILE_FORCE_LAYER0; SET_TILE_INFO(1, code & 0x7f, color, flags); } static VIDEO_START( safarir ) { bg_tilemap = tilemap_create(get_bg_tile_info, tilemap_scan_rows, 8, 8, 32, 32); fg_tilemap = tilemap_create(get_fg_tile_info, tilemap_scan_rows, 8, 8, 32, 32); tilemap_set_transparent_pen(fg_tilemap, 0); } static VIDEO_UPDATE( safarir ) { tilemap_set_scrollx(bg_tilemap, 0, *bg_scroll); tilemap_draw(bitmap, cliprect, bg_tilemap, 0, 0); tilemap_draw(bitmap, cliprect, fg_tilemap, 0, 0); return 0; } /************************************* * * Machine start * *************************************/ static MACHINE_START( safarir ) { ram_1 = auto_malloc(ram_size); ram_2 = auto_malloc(ram_size); /* setup for save states */ state_save_register_global_pointer(ram_1, ram_size); state_save_register_global_pointer(ram_2, ram_size); state_save_register_global(ram_bank); } /************************************* * * Memory handlers * *************************************/ static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x17ff) AM_ROM AM_RANGE(0x2000, 0x27ff) AM_READWRITE(ram_r, ram_w) AM_SIZE(&ram_size) AM_RANGE(0x2800, 0x2800) AM_MIRROR(0x03ff) AM_READWRITE(SMH_NOP, ram_bank_w) AM_RANGE(0x2c00, 0x2cff) AM_MIRROR(0x03ff) AM_READWRITE(SMH_NOP, SMH_RAM) AM_BASE(&bg_scroll) AM_RANGE(0x3000, 0x30ff) AM_MIRROR(0x03ff) AM_WRITENOP /* goes to SN76477 */ AM_RANGE(0x3400, 0x3400) AM_MIRROR(0x03ff) AM_WRITENOP /* cleared at the beginning */ AM_RANGE(0x3800, 0x38ff) AM_MIRROR(0x03ff) AM_READ_PORT("INPUTS") AM_WRITENOP AM_RANGE(0x3c00, 0x3cff) AM_MIRROR(0x03ff) AM_READ_PORT("DSW") AM_WRITENOP ADDRESS_MAP_END /************************************* * * Port definition * *************************************/ static INPUT_PORTS_START( safarir ) PORT_START("INPUTS") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("DSW") PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) ) PORT_DIPSETTING( 0x00, "3" ) PORT_DIPSETTING( 0x01, "4" ) PORT_DIPSETTING( 0x02, "5" ) PORT_DIPSETTING( 0x03, "6" ) PORT_DIPNAME( 0x0c, 0x04, "Acceleration Rate" ) PORT_DIPSETTING( 0x00, "Slowest" ) PORT_DIPSETTING( 0x04, "Slow" ) PORT_DIPSETTING( 0x08, "Fast" ) PORT_DIPSETTING( 0x0c, "Fastest" ) PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x60, 0x20, DEF_STR( Bonus_Life ) ) PORT_DIPSETTING( 0x00, "3000" ) PORT_DIPSETTING( 0x20, "5000" ) PORT_DIPSETTING( 0x40, "7000" ) PORT_DIPSETTING( 0x60, "9000" ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_VBLANK ) INPUT_PORTS_END /************************************* * * Machine driver * *************************************/ static MACHINE_DRIVER_START( safarir ) /* basic machine hardware */ MDRV_CPU_ADD("main", 8080, 3072000) /* 3 MHz ? */ MDRV_CPU_PROGRAM_MAP(main_map, 0) MDRV_MACHINE_START(safarir) /* video hardware */ MDRV_VIDEO_START(safarir) MDRV_VIDEO_UPDATE(safarir) MDRV_PALETTE_INIT(safarir) MDRV_PALETTE_LENGTH(2*8) MDRV_GFXDECODE(safarir) MDRV_SCREEN_ADD("main", RASTER) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_SIZE(32*8, 32*8) MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 26*8-1) MDRV_SCREEN_REFRESH_RATE(60) /* audio hardware */ MACHINE_DRIVER_END /************************************* * * ROM definition * *************************************/ ROM_START( safarir ) ROM_REGION( 0x10000, "main", 0 ) ROM_LOAD( "rl01", 0x0000, 0x0400, CRC(cf7703c9) SHA1(b4182df9332b355edaa518462217a6e31e1c07b2) ) ROM_LOAD( "rl02", 0x0400, 0x0400, CRC(1013ecd3) SHA1(2fe367db8ca367b36c5378cb7d5ff918db243c78) ) ROM_LOAD( "rl03", 0x0800, 0x0400, CRC(84545894) SHA1(377494ceeac5ad58b70f77b2b27b609491cb7ffd) ) ROM_LOAD( "rl04", 0x0c00, 0x0400, CRC(5dd12f96) SHA1(a80ac0705648f0807ea33e444fdbea450bf23f85) ) ROM_LOAD( "rl05", 0x1000, 0x0400, CRC(935ed469) SHA1(052a59df831dcc2c618e9e5e5fdfa47548550596) ) ROM_LOAD( "rl06", 0x1400, 0x0400, CRC(24c1cd42) SHA1(fe32ecea77a3777f8137ca248b8f371db37b8b85) ) ROM_REGION( 0x0400, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "rl08", 0x0000, 0x0400, CRC(d6a50aac) SHA1(0a0c2cefc556e4e15085318fcac485b82bac2416) ) ROM_REGION( 0x0400, "gfx2", ROMREGION_DISPOSE ) ROM_LOAD( "rl07", 0x0000, 0x0400, CRC(ba525203) SHA1(1c261cc1259787a7a248766264fefe140226e465) ) ROM_END /************************************* * * Game driver * *************************************/ GAME( 1979, safarir, 0, safarir, safarir, 0, ROT90, "SNK", "Safari Rally (Japan)", GAME_IMPERFECT_COLORS | GAME_NO_SOUND | GAME_SUPPORTS_SAVE )