/************************************************************************* BattleToads driver by Aaron Giles **************************************************************************/ #include "emu.h" #include "includes/btoads.h" #define CPU_CLOCK XTAL_64MHz #define VIDEO_CLOCK XTAL_20MHz #define SOUND_CLOCK XTAL_24MHz /************************************* * * Machine init * *************************************/ void btoads_state::machine_start() { save_item(NAME(m_main_to_sound_data)); save_item(NAME(m_main_to_sound_ready)); save_item(NAME(m_sound_to_main_data)); save_item(NAME(m_sound_to_main_ready)); save_item(NAME(m_sound_int_state)); } /************************************* * * Main -> sound CPU communication * *************************************/ void btoads_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { switch (id) { case TIMER_ID_DELAYED_SOUND: m_main_to_sound_data = param; m_main_to_sound_ready = 1; m_audiocpu->signal_interrupt_trigger(); // use a timer to make long transfers faster timer_set(attotime::from_usec(50), TIMER_ID_NOP); break; } } WRITE16_MEMBER( btoads_state::main_sound_w ) { if (ACCESSING_BITS_0_7) synchronize(TIMER_ID_DELAYED_SOUND, data & 0xff); } READ16_MEMBER( btoads_state::main_sound_r ) { m_sound_to_main_ready = 0; return m_sound_to_main_data; } CUSTOM_INPUT_MEMBER( btoads_state::main_to_sound_r ) { return m_main_to_sound_ready; } CUSTOM_INPUT_MEMBER( btoads_state::sound_to_main_r ) { return m_sound_to_main_ready; } /************************************* * * Sound -> main CPU communication * *************************************/ WRITE8_MEMBER( btoads_state::sound_data_w ) { m_sound_to_main_data = data; m_sound_to_main_ready = 1; } READ8_MEMBER( btoads_state::sound_data_r ) { m_main_to_sound_ready = 0; return m_main_to_sound_data; } READ8_MEMBER( btoads_state::sound_ready_to_send_r ) { return m_sound_to_main_ready ? 0x00 : 0x80; } READ8_MEMBER( btoads_state::sound_data_ready_r ) { if (m_audiocpu->pc() == 0xd50 && !m_main_to_sound_ready) m_audiocpu->spin_until_interrupt(); return m_main_to_sound_ready ? 0x00 : 0x80; } /************************************* * * Sound CPU interrupt generation * *************************************/ WRITE8_MEMBER( btoads_state::sound_int_state_w ) { /* top bit controls BSMT2000 reset */ if (!(m_sound_int_state & 0x80) && (data & 0x80)) m_bsmt->reset(); /* also clears interrupts */ m_audiocpu->set_input_line(0, CLEAR_LINE); m_sound_int_state = data; } /************************************* * * Sound CPU BSMT2000 communication * *************************************/ READ8_MEMBER( btoads_state::bsmt_ready_r ) { return m_bsmt->read_status() << 7; } WRITE8_MEMBER( btoads_state::bsmt2000_port_w ) { m_bsmt->write_reg(offset >> 8); m_bsmt->write_data(((offset & 0xff) << 8) | data); } /************************************* * * Main CPU memory map * *************************************/ static ADDRESS_MAP_START( main_map, AS_PROGRAM, 16, btoads_state ) AM_RANGE(0x00000000, 0x003fffff) AM_RAM AM_RANGE(0x20000000, 0x2000007f) AM_READ_PORT("P1") AM_RANGE(0x20000080, 0x200000ff) AM_READ_PORT("P2") AM_RANGE(0x20000100, 0x2000017f) AM_READ_PORT("P3") AM_RANGE(0x20000180, 0x200001ff) AM_READ_PORT("UNK") AM_RANGE(0x20000200, 0x2000027f) AM_READ_PORT("SPECIAL") AM_RANGE(0x20000280, 0x200002ff) AM_READ_PORT("SW1") AM_RANGE(0x20000000, 0x200000ff) AM_WRITEONLY AM_SHARE("sprite_scale") AM_RANGE(0x20000100, 0x2000017f) AM_WRITEONLY AM_SHARE("sprite_control") AM_RANGE(0x20000180, 0x200001ff) AM_WRITE(display_control_w) AM_RANGE(0x20000200, 0x2000027f) AM_WRITE(scroll0_w) AM_RANGE(0x20000280, 0x200002ff) AM_WRITE(scroll1_w) AM_RANGE(0x20000300, 0x2000037f) AM_READWRITE(paletteram_r, paletteram_w) AM_RANGE(0x20000380, 0x200003ff) AM_READWRITE(main_sound_r, main_sound_w) AM_RANGE(0x20000400, 0x2000047f) AM_WRITE(misc_control_w) AM_RANGE(0x40000000, 0x4000000f) AM_WRITENOP /* watchdog? */ AM_RANGE(0x60000000, 0x6003ffff) AM_RAM AM_SHARE("nvram") AM_RANGE(0xa0000000, 0xa03fffff) AM_READWRITE(vram_fg_display_r, vram_fg_display_w) AM_SHARE("vram_fg0") AM_RANGE(0xa4000000, 0xa43fffff) AM_READWRITE(vram_fg_draw_r, vram_fg_draw_w) AM_SHARE("vram_fg1") AM_RANGE(0xa8000000, 0xa87fffff) AM_RAM AM_SHARE("vram_fg_data") AM_RANGE(0xa8800000, 0xa8ffffff) AM_WRITENOP AM_RANGE(0xb0000000, 0xb03fffff) AM_READWRITE(vram_bg0_r, vram_bg0_w) AM_SHARE("vram_bg0") AM_RANGE(0xb4000000, 0xb43fffff) AM_READWRITE(vram_bg1_r, vram_bg1_w) AM_SHARE("vram_bg1") AM_RANGE(0xc0000000, 0xc00003ff) AM_READWRITE_LEGACY(tms34020_io_register_r, tms34020_io_register_w) AM_RANGE(0xfc000000, 0xffffffff) AM_ROM AM_REGION("user1", 0) ADDRESS_MAP_END /************************************* * * Sound CPU memory map * *************************************/ static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8, btoads_state ) AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x8000, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START( sound_io_map, AS_IO, 8, btoads_state ) AM_RANGE(0x0000, 0x7fff) AM_WRITE(bsmt2000_port_w) AM_RANGE(0x8000, 0x8000) AM_READWRITE(sound_data_r, sound_data_w) AM_RANGE(0x8002, 0x8002) AM_WRITE(sound_int_state_w) AM_RANGE(0x8004, 0x8004) AM_READ(sound_data_ready_r) AM_RANGE(0x8005, 0x8005) AM_READ(sound_ready_to_send_r) AM_RANGE(0x8006, 0x8006) AM_READ(bsmt_ready_r) ADDRESS_MAP_END /************************************* * * Input ports * *************************************/ static INPUT_PORTS_START( btoads ) PORT_START("P1") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("P2") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(2) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("P3") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(3) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(3) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(3) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(3) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN3 ) PORT_IMPULSE(2) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START3 ) PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("UNK") PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("SPECIAL") PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, btoads_state, sound_to_main_r, NULL) PORT_SERVICE_NO_TOGGLE( 0x0002, IP_ACTIVE_LOW ) PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, btoads_state, main_to_sound_r, NULL) PORT_BIT( 0xff7c, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("SW1") PORT_DIPNAME( 0x0001, 0x0000, DEF_STR( Demo_Sounds )) PORT_DIPLOCATION("SW1:1") PORT_DIPSETTING( 0x0001, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0002, 0x0000, DEF_STR( Stereo )) PORT_DIPLOCATION("SW1:2") PORT_DIPSETTING( 0x0002, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0004, 0x0000, "Common Coin Mech") PORT_DIPLOCATION("SW1:3") PORT_DIPSETTING( 0x0004, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0008, 0x0008, "Three Players") PORT_DIPLOCATION("SW1:4") PORT_DIPSETTING( 0x0008, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Free_Play )) PORT_DIPLOCATION("SW1:5") PORT_DIPSETTING( 0x0010, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0020, 0x0020, "Blood Free Mode") PORT_DIPLOCATION("SW1:6") PORT_DIPSETTING( 0x0020, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPNAME( 0x0040, 0x0040, "Credit Retention") PORT_DIPLOCATION("SW1:7") PORT_DIPSETTING( 0x0040, DEF_STR( Off )) PORT_DIPSETTING( 0x0000, DEF_STR( On )) PORT_DIPUNKNOWN_DIPLOC(0x0080, 0x0080, "SW1:8") PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) INPUT_PORTS_END /************************************* * * 34010 configuration * *************************************/ static const tms34010_config tms_config = { FALSE, /* halt on reset */ "screen", /* the screen operated on */ VIDEO_CLOCK/2, /* pixel clock */ 1, /* pixels per clock */ NULL, /* scanline callback (indexed16) */ btoads_state::static_scanline_update, /* scanline callback (rgb32) */ NULL, /* generate interrupt */ btoads_state::static_to_shiftreg, /* write to shiftreg function */ btoads_state::static_from_shiftreg /* read from shiftreg function */ }; /************************************* * * Machine drivers * *************************************/ static MACHINE_CONFIG_START( btoads, btoads_state ) MCFG_CPU_ADD("maincpu", TMS34020, CPU_CLOCK/2) MCFG_CPU_CONFIG(tms_config) MCFG_CPU_PROGRAM_MAP(main_map) MCFG_CPU_ADD("audiocpu", Z80, SOUND_CLOCK/4) MCFG_CPU_PROGRAM_MAP(sound_map) MCFG_CPU_IO_MAP(sound_io_map) MCFG_CPU_PERIODIC_INT_DRIVER(btoads_state, irq0_line_assert, 183) MCFG_NVRAM_ADD_1FILL("nvram") /* video hardware */ MCFG_TLC34076_ADD("tlc34076", TLC34076_6_BIT) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS(VIDEO_CLOCK/2, 640, 0, 512, 257, 0, 224) MCFG_SCREEN_UPDATE_STATIC(tms340x0_rgb32) /* sound hardware */ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") MCFG_BSMT2000_ADD("bsmt", SOUND_CLOCK) MCFG_SOUND_ROUTE(0, "lspeaker", 1.0) MCFG_SOUND_ROUTE(1, "rspeaker", 1.0) MACHINE_CONFIG_END /************************************* * * ROM definitions * *************************************/ ROM_START( btoads ) ROM_REGION( 0x10000, "audiocpu", 0 ) /* sound program, M27C256B rom */ ROM_LOAD( "bt.u102", 0x0000, 0x8000, CRC(a90b911a) SHA1(6ec25161e68df1c9870d48cc2b1f85cd1a49aba9) ) ROM_REGION16_LE( 0x800000, "user1", 0 ) /* 34020 code, M27C322 roms */ ROM_LOAD32_WORD( "btc0-p0.u120", 0x000000, 0x400000, CRC(0dfd1e35) SHA1(733a0a4235bebd598c600f187ed2628f28cf9bd0) ) ROM_LOAD32_WORD( "btc0-p1.u121", 0x000002, 0x400000, CRC(df7487e1) SHA1(67151b900767bb2653b5261a98c81ff8827222c3) ) ROM_REGION( 0x1000000, "bsmt", 0 ) /* BSMT data, M27C160 rom */ ROM_LOAD( "btc0-s.u109", 0x00000, 0x200000, CRC(d9612ddb) SHA1(f186dfb013e81abf81ba8ac5dc7eb731c1ad82b6) ) ROM_REGION( 0x080a, "plds", 0 ) ROM_LOAD( "u10.bin", 0x0000, 0x0157, CRC(b1144178) SHA1(15fb047adee4125e9fcf04171e0a502655e0a3d8) ) /* GAL20V8A-15LP Located at U10. */ ROM_LOAD( "u11.bin", 0x0000, 0x0157, CRC(7c6beb96) SHA1(2f19d21889dd765b344ad7d257ea7c244baebec2) ) /* GAL20V8A-15LP Located at U11. */ ROM_LOAD( "u57.bin", 0x0000, 0x0157, CRC(be355a56) SHA1(975238bb1ea8fef14458d6f264a82aa77ecf865d) ) /* GAL20V8A-15LP Located at U57. */ ROM_LOAD( "u58.bin", 0x0000, 0x0157, CRC(41ed339c) SHA1(5853c805a902e6d12c979958d878d1cefd6908cc) ) /* GAL20V8A-15LP Located at U58. */ ROM_LOAD( "u90.bin", 0x0000, 0x0157, CRC(a0d0c3f1) SHA1(47464c2ef9fadbba933df27767f377e0c29158aa) ) /* GAL20V8A-15LP Located at U90. */ ROM_LOAD( "u144.bin", 0x0000, 0x0157, CRC(8597017f) SHA1(003d7b5de57e48f831ab211e2783fff338ce2f32) ) /* GAL20V8A-15LP Located at U144. */ ROM_END /************************************* * * Game drivers * *************************************/ GAME( 1994, btoads, 0, btoads, btoads, driver_device, 0, ROT0, "Rare / Electronic Arts", "Battletoads", GAME_SUPPORTS_SAVE )