diff options
Diffstat (limited to 'src/mame/drivers/btoads.c')
-rw-r--r-- | src/mame/drivers/btoads.c | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/src/mame/drivers/btoads.c b/src/mame/drivers/btoads.c new file mode 100644 index 00000000000..6e47a565cf7 --- /dev/null +++ b/src/mame/drivers/btoads.c @@ -0,0 +1,387 @@ +/************************************************************************* + + BattleToads + + driver by Aaron Giles + +**************************************************************************/ + +#include "driver.h" +#include "cpu/tms34010/tms34010.h" +#include "video/tlc34076.h" +#include "btoads.h" +#include "sound/bsmt2000.h" + + + +/************************************* + * + * Global variables + * + *************************************/ + +static UINT8 main_to_sound_data; +static UINT8 main_to_sound_ready; + +static UINT8 sound_to_main_data; +static UINT8 sound_to_main_ready; +static UINT8 sound_int_state; + + + +/************************************* + * + * Machine init + * + *************************************/ + +static MACHINE_RESET( btoads ) +{ + tlc34076_reset(6); +} + + + +/************************************* + * + * Main -> sound CPU communication + * + *************************************/ + +static TIMER_CALLBACK( delayed_sound_w ) +{ + main_to_sound_data = param; + main_to_sound_ready = 1; + cpu_triggerint(1); + + /* use a timer to make long transfers faster */ + timer_set(ATTOTIME_IN_USEC(50), 0, 0); +} + + +static WRITE16_HANDLER( main_sound_w ) +{ + if (ACCESSING_LSB) + timer_call_after_resynch(data & 0xff, delayed_sound_w); +} + + +static READ16_HANDLER( special_port_4_r ) +{ + int result = readinputport(4) & ~0x81; + + if (sound_to_main_ready) + result |= 0x01; + if (main_to_sound_ready) + result |= 0x80; + return result; +} + + +static READ16_HANDLER( main_sound_r ) +{ + sound_to_main_ready = 0; + return sound_to_main_data; +} + + + +/************************************* + * + * Sound -> main CPU communication + * + *************************************/ + +static WRITE8_HANDLER( sound_data_w ) +{ + sound_to_main_data = data; + sound_to_main_ready = 1; +} + + +static READ8_HANDLER( sound_data_r ) +{ + main_to_sound_ready = 0; + return main_to_sound_data; +} + + +static READ8_HANDLER( sound_ready_to_send_r ) +{ + return sound_to_main_ready ? 0x00 : 0x80; +} + + +static READ8_HANDLER( sound_data_ready_r ) +{ + if (activecpu_get_pc() == 0xd50 && !main_to_sound_ready) + cpu_spinuntil_int(); + return main_to_sound_ready ? 0x00 : 0x80; +} + + + +/************************************* + * + * Sound CPU interrupt generation + * + *************************************/ + +static WRITE8_HANDLER( sound_int_state_w ) +{ + /* top bit controls BSMT2000 reset */ + if (!(sound_int_state & 0x80) && (data & 0x80)) + sndti_reset(SOUND_BSMT2000, 0); + + /* also clears interrupts */ + cpunum_set_input_line(1, 0, CLEAR_LINE); + sound_int_state = data; +} + + + +/************************************* + * + * Sound CPU BSMT2000 communication + * + *************************************/ + +static READ8_HANDLER( bsmt_ready_r ) +{ + return 0x80; +} + + +static WRITE8_HANDLER( bsmt2000_port_w ) +{ + UINT16 reg = offset >> 8; + UINT16 val = ((offset & 0xff) << 8) | data; + BSMT2000_data_0_w(reg, val, 0); +} + + + +/************************************* + * + * Main CPU memory map + * + *************************************/ + +static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 ) + AM_RANGE(0x00000000, 0x003fffff) AM_RAM + AM_RANGE(0x20000000, 0x2000007f) AM_READ(input_port_0_word_r) + AM_RANGE(0x20000080, 0x200000ff) AM_READ(input_port_1_word_r) + AM_RANGE(0x20000100, 0x2000017f) AM_READ(input_port_2_word_r) + AM_RANGE(0x20000180, 0x200001ff) AM_READ(input_port_3_word_r) + AM_RANGE(0x20000200, 0x2000027f) AM_READ(special_port_4_r) + AM_RANGE(0x20000280, 0x200002ff) AM_READ(input_port_5_word_r) + AM_RANGE(0x20000000, 0x200000ff) AM_WRITE(MWA16_RAM) AM_BASE(&btoads_sprite_scale) + AM_RANGE(0x20000100, 0x2000017f) AM_WRITE(MWA16_RAM) AM_BASE(&btoads_sprite_control) + AM_RANGE(0x20000180, 0x200001ff) AM_WRITE(btoads_display_control_w) + AM_RANGE(0x20000200, 0x2000027f) AM_WRITE(btoads_scroll0_w) + AM_RANGE(0x20000280, 0x200002ff) AM_WRITE(btoads_scroll1_w) + AM_RANGE(0x20000300, 0x2000037f) AM_READWRITE(btoads_paletteram_r, btoads_paletteram_w) + AM_RANGE(0x20000380, 0x200003ff) AM_READWRITE(main_sound_r, main_sound_w) + AM_RANGE(0x20000400, 0x2000047f) AM_WRITE(btoads_misc_control_w) + AM_RANGE(0x40000000, 0x4000000f) AM_WRITE(MWA16_NOP) /* watchdog? */ + AM_RANGE(0x60000000, 0x6003ffff) AM_RAM AM_BASE(&generic_nvram16) AM_SIZE(&generic_nvram_size) + AM_RANGE(0xa0000000, 0xa03fffff) AM_READWRITE(btoads_vram_fg_display_r, btoads_vram_fg_display_w) AM_BASE(&btoads_vram_fg0) + AM_RANGE(0xa4000000, 0xa43fffff) AM_READWRITE(btoads_vram_fg_draw_r, btoads_vram_fg_draw_w) AM_BASE(&btoads_vram_fg1) + AM_RANGE(0xa8000000, 0xa87fffff) AM_RAM AM_BASE(&btoads_vram_fg_data) + AM_RANGE(0xa8800000, 0xa8ffffff) AM_WRITE(MWA16_NOP) + AM_RANGE(0xb0000000, 0xb03fffff) AM_READWRITE(btoads_vram_bg0_r, btoads_vram_bg0_w) AM_BASE(&btoads_vram_bg0) + AM_RANGE(0xb4000000, 0xb43fffff) AM_READWRITE(btoads_vram_bg1_r, btoads_vram_bg1_w) AM_BASE(&btoads_vram_bg1) + AM_RANGE(0xc0000000, 0xc00003ff) AM_READWRITE(tms34020_io_register_r, tms34020_io_register_w) + AM_RANGE(0xfc000000, 0xffffffff) AM_ROM AM_REGION(REGION_USER1, 0) +ADDRESS_MAP_END + + + +/************************************* + * + * Sound CPU memory map + * + *************************************/ + +static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x7fff) AM_ROM + AM_RANGE(0x8000, 0xffff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( sound_io_map, ADDRESS_SPACE_IO, 8 ) + 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 + 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 + 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 + 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 + PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNKNOWN ) + + PORT_START + PORT_SERVICE_NO_TOGGLE( 0x0002, IP_ACTIVE_LOW ) + PORT_BIT( 0xfffd, IP_ACTIVE_LOW, IPT_UNKNOWN ) + + PORT_START + PORT_DIPNAME( 0x0001, 0x0000, DEF_STR( Demo_Sounds )) + PORT_DIPSETTING( 0x0001, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0002, 0x0000, DEF_STR( Stereo )) + PORT_DIPSETTING( 0x0002, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0004, 0x0000, "Common Coin Mech") + PORT_DIPSETTING( 0x0004, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0008, 0x0008, "Three Players") + PORT_DIPSETTING( 0x0008, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Free_Play )) + PORT_DIPSETTING( 0x0010, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0020, 0x0020, "Blood Free Mode") + PORT_DIPSETTING( 0x0020, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0040, 0x0040, "Credit Retention") + PORT_DIPSETTING( 0x0040, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_DIPNAME( 0x0080, 0x0080, DEF_STR( Unknown )) + PORT_DIPSETTING( 0x0080, DEF_STR( Off )) + PORT_DIPSETTING( 0x0000, DEF_STR( On )) + PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + + + +/************************************* + * + * 34010 configuration + * + *************************************/ + +static tms34010_config tms_config = +{ + FALSE, /* halt on reset */ + 0, /* the screen operated on */ + 40000000/4, /* pixel clock */ + 1, /* pixels per clock */ + btoads_scanline_update, /* scanline callback */ + NULL, /* generate interrupt */ + btoads_to_shiftreg, /* write to shiftreg function */ + btoads_from_shiftreg /* read from shiftreg function */ +}; + + + +/************************************* + * + * Machine drivers + * + *************************************/ + +static MACHINE_DRIVER_START( btoads ) + + MDRV_CPU_ADD(TMS34020, 40000000/TMS34020_CLOCK_DIVIDER) + MDRV_CPU_CONFIG(tms_config) + MDRV_CPU_PROGRAM_MAP(main_map,0) + + MDRV_CPU_ADD(Z80, 4000000) + MDRV_CPU_PROGRAM_MAP(sound_map,0) + MDRV_CPU_IO_MAP(sound_io_map,0) + MDRV_CPU_PERIODIC_INT(irq0_line_assert, 183) + + MDRV_MACHINE_RESET(btoads) + MDRV_NVRAM_HANDLER(generic_1fill) + + /* video hardware */ + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_PALETTE_LENGTH(256) + + MDRV_SCREEN_ADD("main", 0) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MDRV_SCREEN_RAW_PARAMS(40000000/4, 640, 0, 512, 257, 0, 224) + + MDRV_VIDEO_START(btoads) + MDRV_VIDEO_UPDATE(tms340x0) + + /* sound hardware */ + MDRV_SPEAKER_STANDARD_STEREO("left", "right") + + MDRV_SOUND_ADD(BSMT2000, 24000000) + MDRV_SOUND_CONFIG(bsmt2000_interface_region_1) + MDRV_SOUND_ROUTE(0, "left", 1.0) + MDRV_SOUND_ROUTE(1, "right", 1.0) +MACHINE_DRIVER_END + + + +/************************************* + * + * ROM definitions + * + *************************************/ + +ROM_START( btoads ) + ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* sound program */ + ROM_LOAD( "btu102.bin", 0x0000, 0x8000, CRC(a90b911a) SHA1(6ec25161e68df1c9870d48cc2b1f85cd1a49aba9) ) + + ROM_REGION16_LE( 0x800000, REGION_USER1, 0 ) /* 34020 code */ + ROM_LOAD32_WORD( "btu120.bin", 0x000000, 0x400000, CRC(0dfd1e35) SHA1(733a0a4235bebd598c600f187ed2628f28cf9bd0) ) + ROM_LOAD32_WORD( "btu121.bin", 0x000002, 0x400000, CRC(df7487e1) SHA1(67151b900767bb2653b5261a98c81ff8827222c3) ) + + ROM_REGION( 0x200000, REGION_SOUND1, 0 ) /* BSMT data */ + ROM_LOAD( "btu109.bin", 0x00000, 0x200000, CRC(d9612ddb) SHA1(f186dfb013e81abf81ba8ac5dc7eb731c1ad82b6) ) +ROM_END + + + +/************************************* + * + * Game drivers + * + *************************************/ + +GAME( 1994, btoads, 0, btoads, btoads, 0, ROT0, "Rare", "Battle Toads", 0 ) |