/*************************************************************************** Atari Cannonball (prototype) driver ***************************************************************************/ #include "emu.h" #include "cpu/m6800/m6800.h" class cball_state : public driver_device { public: cball_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) { } /* memory pointers */ UINT8 * m_video_ram; /* video-related */ tilemap_t* m_bg_tilemap; /* devices */ device_t *m_maincpu; }; static TILE_GET_INFO( get_tile_info ) { cball_state *state = machine.driver_data(); UINT8 code = state->m_video_ram[tile_index]; SET_TILE_INFO(0, code, code >> 7, 0); } static WRITE8_HANDLER( cball_vram_w ) { cball_state *state = space->machine().driver_data(); state->m_video_ram[offset] = data; tilemap_mark_tile_dirty(state->m_bg_tilemap, offset); } static VIDEO_START( cball ) { cball_state *state = machine.driver_data(); state->m_bg_tilemap = tilemap_create(machine, get_tile_info, tilemap_scan_rows, 8, 8, 32, 32); } static SCREEN_UPDATE( cball ) { cball_state *state = screen->machine().driver_data(); /* draw playfield */ tilemap_draw(bitmap, cliprect, state->m_bg_tilemap, 0, 0); /* draw sprite */ drawgfx_transpen(bitmap, cliprect, screen->machine().gfx[1], state->m_video_ram[0x399] >> 4, 0, 0, 0, 240 - state->m_video_ram[0x390], 240 - state->m_video_ram[0x398], 0); return 0; } static TIMER_CALLBACK( interrupt_callback ) { cball_state *state = machine.driver_data(); int scanline = param; generic_pulse_irq_line(state->m_maincpu, 0); scanline = scanline + 32; if (scanline >= 262) scanline = 16; machine.scheduler().timer_set(machine.primary_screen->time_until_pos(scanline), FUNC(interrupt_callback), scanline); } static MACHINE_START( cball ) { cball_state *state = machine.driver_data(); state->m_maincpu = machine.device("maincpu"); } static MACHINE_RESET( cball ) { machine.scheduler().timer_set(machine.primary_screen->time_until_pos(16), FUNC(interrupt_callback), 16); } static PALETTE_INIT( cball ) { palette_set_color(machine, 0, MAKE_RGB(0x80, 0x80, 0x80)); palette_set_color(machine, 1, MAKE_RGB(0x00, 0x00, 0x00)); palette_set_color(machine, 2, MAKE_RGB(0x80, 0x80, 0x80)); palette_set_color(machine, 3, MAKE_RGB(0xff, 0xff, 0xff)); palette_set_color(machine, 4, MAKE_RGB(0x80, 0x80, 0x80)); palette_set_color(machine, 5, MAKE_RGB(0xc0, 0xc0, 0xc0)); } static READ8_HANDLER( cball_wram_r ) { cball_state *state = space->machine().driver_data(); return state->m_video_ram[0x380 + offset]; } static WRITE8_HANDLER( cball_wram_w ) { cball_state *state = space->machine().driver_data(); state->m_video_ram[0x380 + offset] = data; } static ADDRESS_MAP_START( cpu_map, AS_PROGRAM, 8 ) ADDRESS_MAP_GLOBAL_MASK(0x7fff) AM_RANGE(0x0000, 0x03ff) AM_READ(cball_wram_r) AM_MASK(0x7f) AM_RANGE(0x0400, 0x07ff) AM_READONLY AM_RANGE(0x1001, 0x1001) AM_READ_PORT("1001") AM_RANGE(0x1003, 0x1003) AM_READ_PORT("1003") AM_RANGE(0x1020, 0x1020) AM_READ_PORT("1020") AM_RANGE(0x1040, 0x1040) AM_READ_PORT("1040") AM_RANGE(0x1060, 0x1060) AM_READ_PORT("1060") AM_RANGE(0x2000, 0x2001) AM_NOP AM_RANGE(0x2800, 0x2800) AM_READ_PORT("2800") AM_RANGE(0x0000, 0x03ff) AM_WRITE(cball_wram_w) AM_MASK(0x7f) AM_RANGE(0x0400, 0x07ff) AM_WRITE(cball_vram_w) AM_BASE_MEMBER(cball_state, m_video_ram) AM_RANGE(0x1800, 0x1800) AM_NOP /* watchdog? */ AM_RANGE(0x1810, 0x1811) AM_NOP AM_RANGE(0x1820, 0x1821) AM_NOP AM_RANGE(0x1830, 0x1831) AM_NOP AM_RANGE(0x1840, 0x1841) AM_NOP AM_RANGE(0x1850, 0x1851) AM_NOP AM_RANGE(0x1870, 0x1871) AM_NOP AM_RANGE(0x7000, 0x7fff) AM_ROM ADDRESS_MAP_END static INPUT_PORTS_START( cball ) PORT_START("1001") PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x00, "2 Coins each" ) PORT_DIPSETTING( 0xc0, "1 Coin each" ) PORT_DIPSETTING( 0x80, "1 Coin 1 Game" ) PORT_DIPSETTING( 0x40, "1 Coin 2 Games" ) PORT_START("1003") PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Lives ) ) PORT_DIPSETTING( 0xc0, "3" ) PORT_DIPSETTING( 0x80, "5" ) PORT_DIPSETTING( 0x40, "7" ) PORT_DIPSETTING( 0x00, "9" ) PORT_START("1020") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START1 ) PORT_START("1040") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_START("1060") PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) PORT_START("2800") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) INPUT_PORTS_END static const gfx_layout tile_layout = { 8, 8, 64, 1, { 0 }, { 0, 1, 2, 3, 4, 5, 6, 7 }, { 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38 }, 0x40 }; static const gfx_layout sprite_layout = { 16, 16, 16, 1, { 0 }, { 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0, 0xf, 0xe, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8 }, { 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80, 0x90, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0 }, 0x100 }; static GFXDECODE_START( cball ) GFXDECODE_ENTRY( "gfx1", 0, tile_layout, 0, 2 ) GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 4, 1 ) GFXDECODE_END static MACHINE_CONFIG_START( cball, cball_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M6800, XTAL_12_096MHz / 16) /* ? */ MCFG_CPU_PROGRAM_MAP(cpu_map) MCFG_MACHINE_START(cball) MCFG_MACHINE_RESET(cball) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MCFG_SCREEN_SIZE(256, 262) MCFG_SCREEN_VISIBLE_AREA(0, 255, 0, 223) MCFG_SCREEN_UPDATE(cball) MCFG_GFXDECODE(cball) MCFG_PALETTE_LENGTH(6) MCFG_PALETTE_INIT(cball) MCFG_VIDEO_START(cball) /* sound hardware */ MACHINE_CONFIG_END ROM_START( cball ) ROM_REGION( 0x8000, "maincpu", 0 ) ROM_LOAD_NIB_LOW ( "canball.1e", 0x7400, 0x0400, CRC(0b34823b) SHA1(0db6b9f78f7c07ee7d35f2bf048ba61fe43b1e26) ) ROM_LOAD_NIB_HIGH( "canball.1l", 0x7400, 0x0400, CRC(b43ca275) SHA1(a03e03f6366877cfdcec71030a5fb2c5171c8d8a) ) ROM_LOAD_NIB_LOW ( "canball.1f", 0x7800, 0x0400, CRC(29b4e1f7) SHA1(8cef944b6e0153c304aa2d4cfdc530b8a4eef021) ) ROM_LOAD_NIB_HIGH( "canball.1k", 0x7800, 0x0400, CRC(a4d1cf12) SHA1(99de6470efd16e57d72019e065f55bc740f3c7fc) ) ROM_LOAD_NIB_LOW ( "canball.1h", 0x7c00, 0x0400, CRC(13f55937) SHA1(7514c27e60944c4e00992c8ecbc5115f8ff948bb) ) ROM_LOAD_NIB_HIGH( "canball.1j", 0x7c00, 0x0400, CRC(5b905d69) SHA1(2408dd6e44c51c0c9bdb82d2d33826c03f8308c4) ) ROM_REGION( 0x0200, "gfx1", 0 ) /* tiles */ ROM_LOAD_NIB_LOW ( "canball.6m", 0x0000, 0x0200, NO_DUMP ) ROM_LOAD_NIB_HIGH( "canball.6l", 0x0000, 0x0200, CRC(5b1c9e88) SHA1(6e9630db9907170c53942a21302bcf8b721590a3) ) ROM_REGION( 0x0200, "gfx2", 0 ) /* sprites */ ROM_LOAD_NIB_LOW ( "canball.5l", 0x0000, 0x0200, CRC(3d0d1569) SHA1(1dfcf5cf9468d476c4b7d76a261c6fec87a99f93) ) ROM_LOAD_NIB_HIGH( "canball.5k", 0x0000, 0x0200, CRC(c5fdd3c8) SHA1(5aae148439683ff1cf0005a810c81fdcbed525c3) ) ROM_REGION( 0x0100, "proms", 0 ) ROM_LOAD( "canball.6h", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync */ ROM_END GAME( 1976, cball, 0, cball, cball, 0, ROT0, "Atari", "Cannonball (Atari, prototype)", GAME_NO_SOUND | GAME_WRONG_COLORS | GAME_IMPERFECT_GRAPHICS )