/*************************************************************************** Capcom Baseball Somewhat similar to the "Mitchell hardware", but different enough to deserve its own driver. TODO: - understand what bit 6 of input port 0x12 is - unknown bit 5 of bankswitch register ***************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "includes/cps1.h" // needed for decoding functions only #include "includes/cbasebal.h" #include "machine/eeprom.h" #include "sound/okim6295.h" #include "sound/2413intf.h" /************************************* * * Memory handlers * *************************************/ static WRITE8_HANDLER( cbasebal_bankswitch_w ) { cbasebal_state *state = space->machine().driver_data(); /* bits 0-4 select ROM bank */ //logerror("%04x: bankswitch %02x\n", cpu_get_pc(&space->device()), data); memory_set_bank(space->machine(), "bank1", data & 0x1f); /* bit 5 used but unknown */ /* bits 6-7 select RAM bank */ state->m_rambank = (data & 0xc0) >> 6; } static READ8_HANDLER( bankedram_r ) { cbasebal_state *state = space->machine().driver_data(); switch (state->m_rambank) { case 2: return cbasebal_textram_r(space, offset); /* VRAM */ case 1: if (offset < 0x800) return space->machine().generic.paletteram.u8[offset]; else return 0; break; default: return cbasebal_scrollram_r(space, offset); /* SCROLL */ } } static WRITE8_HANDLER( bankedram_w ) { cbasebal_state *state = space->machine().driver_data(); switch (state->m_rambank) { case 2: cbasebal_textram_w(space, offset, data); break; case 1: if (offset < 0x800) paletteram_xxxxBBBBRRRRGGGG_le_w(space, offset, data); break; default: cbasebal_scrollram_w(space, offset, data); break; } } static WRITE8_HANDLER( cbasebal_coinctrl_w ) { coin_lockout_w(space->machine(), 0, ~data & 0x04); coin_lockout_w(space->machine(), 1, ~data & 0x08); coin_counter_w(space->machine(), 0, data & 0x01); coin_counter_w(space->machine(), 1, data & 0x02); } /************************************* * * EEPROM * *************************************/ static const eeprom_interface cbasebal_eeprom_intf = { 6, /* address bits */ 16, /* data bits */ "0110", /* read command */ "0101", /* write command */ "0111" /* erase command */ }; /************************************* * * Address maps * *************************************/ static ADDRESS_MAP_START( cbasebal_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1") AM_RANGE(0xc000, 0xcfff) AM_READWRITE(bankedram_r, bankedram_w) AM_BASE_GENERIC(paletteram) /* palette + vram + scrollram */ AM_RANGE(0xe000, 0xfdff) AM_RAM /* work RAM */ AM_RANGE(0xfe00, 0xffff) AM_RAM AM_BASE_SIZE_MEMBER(cbasebal_state, m_spriteram, m_spriteram_size) ADDRESS_MAP_END static ADDRESS_MAP_START( cbasebal_portmap, AS_IO, 8 ) ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x00) AM_WRITE(cbasebal_bankswitch_w) AM_RANGE(0x01, 0x01) AM_WRITE_PORT("IO_01") AM_RANGE(0x02, 0x02) AM_WRITE_PORT("IO_02") AM_RANGE(0x03, 0x03) AM_WRITE_PORT("IO_03") AM_RANGE(0x05, 0x05) AM_DEVWRITE_MODERN("oki", okim6295_device, write) AM_RANGE(0x06, 0x07) AM_DEVWRITE("ymsnd", ym2413_w) AM_RANGE(0x08, 0x09) AM_WRITE(cbasebal_scrollx_w) AM_RANGE(0x0a, 0x0b) AM_WRITE(cbasebal_scrolly_w) AM_RANGE(0x10, 0x10) AM_READ_PORT("P1") AM_RANGE(0x11, 0x11) AM_READ_PORT("P2") AM_RANGE(0x12, 0x12) AM_READ_PORT("SYSTEM") AM_RANGE(0x13, 0x13) AM_WRITE(cbasebal_gfxctrl_w) AM_RANGE(0x14, 0x14) AM_WRITE(cbasebal_coinctrl_w) ADDRESS_MAP_END /************************************* * * Input ports * *************************************/ static INPUT_PORTS_START( cbasebal ) PORT_START("P1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_START("P2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_START("SYSTEM") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 ) PORT_SERVICE( 0x08, IP_ACTIVE_LOW ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_VBLANK ) /* ? */ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_READ_LINE_DEVICE_MEMBER("eeprom", eeprom_device, read_bit) PORT_START( "IO_01" ) PORT_BIT( 0x00000010, IP_ACTIVE_LOW, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_device, set_cs_line) PORT_START( "IO_02" ) PORT_BIT( 0x00000020, IP_ACTIVE_LOW, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_device, set_clock_line) PORT_START( "IO_03" ) PORT_BIT( 0x00000040, IP_ACTIVE_HIGH, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_device, write_bit) INPUT_PORTS_END /************************************* * * Graphics definitions * *************************************/ static const gfx_layout cbasebal_textlayout = { 8,8, /* 8*8 characters */ 4096, /* 4096 characters */ 2, /* 2 bits per pixel */ { 0, 4 }, { 8+3, 8+2, 8+1, 8+0, 3, 2, 1, 0 }, { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 }, 16*8 /* every char takes 16 consecutive bytes */ }; static const gfx_layout cbasebal_tilelayout = { 16,16, /* 16*16 tiles */ 4096, /* 4096 tiles */ 4, /* 4 bits per pixel */ { 4096*64*8+4, 4096*64*8+0,4, 0 }, { 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3, 16*16+0, 16*16+1, 16*16+2, 16*16+3, 16*16+8+0, 16*16+8+1, 16*16+8+2, 16*16+8+3 }, { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, 8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16 }, 64*8 /* every tile takes 64 consecutive bytes */ }; static const gfx_layout cbasebal_spritelayout = { 16,16, /* 16*16 sprites */ 4096, /* 2048 sprites */ 4, /* 4 bits per pixel */ { 4096*64*8+4, 4096*64*8+0, 4, 0 }, { 0, 1, 2, 3, 8+0, 8+1, 8+2, 8+3, 32*8+0, 32*8+1, 32*8+2, 32*8+3, 33*8+0, 33*8+1, 33*8+2, 33*8+3 }, { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, 8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16 }, 64*8 /* every sprite takes 64 consecutive bytes */ }; static GFXDECODE_START( cbasebal ) GFXDECODE_ENTRY( "gfx1", 0, cbasebal_textlayout, 256, 8 ) /* colors 256- 287 */ GFXDECODE_ENTRY( "gfx2", 0, cbasebal_tilelayout, 768, 16 ) /* colors 768-1023 */ GFXDECODE_ENTRY( "gfx3", 0, cbasebal_spritelayout, 512, 8 ) /* colors 512- 639 */ GFXDECODE_END /************************************* * * Machine driver * *************************************/ static MACHINE_START( cbasebal ) { cbasebal_state *state = machine.driver_data(); memory_configure_bank(machine, "bank1", 0, 32, machine.region("maincpu")->base() + 0x10000, 0x4000); state->save_item(NAME(state->m_rambank)); state->save_item(NAME(state->m_tilebank)); state->save_item(NAME(state->m_spritebank)); state->save_item(NAME(state->m_text_on)); state->save_item(NAME(state->m_bg_on)); state->save_item(NAME(state->m_obj_on)); state->save_item(NAME(state->m_flipscreen)); state->save_item(NAME(state->m_scroll_x)); state->save_item(NAME(state->m_scroll_y)); } static MACHINE_RESET( cbasebal ) { cbasebal_state *state = machine.driver_data(); state->m_rambank = 0; state->m_tilebank = 0; state->m_spritebank = 0; state->m_text_on = 0; state->m_bg_on = 0; state->m_obj_on = 0; state->m_flipscreen = 0; state->m_scroll_x[0] = 0; state->m_scroll_x[1] = 0; state->m_scroll_y[0] = 0; state->m_scroll_y[1] = 0; } static MACHINE_CONFIG_START( cbasebal, cbasebal_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", Z80, 6000000) /* ??? */ MCFG_CPU_PROGRAM_MAP(cbasebal_map) MCFG_CPU_IO_MAP(cbasebal_portmap) MCFG_CPU_VBLANK_INT("screen", irq0_line_hold) /* ??? */ MCFG_MACHINE_START(cbasebal) MCFG_MACHINE_RESET(cbasebal) MCFG_EEPROM_ADD("eeprom", cbasebal_eeprom_intf) /* video hardware */ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MCFG_SCREEN_SIZE(64*8, 32*8) MCFG_SCREEN_VISIBLE_AREA(8*8, (64-8)*8-1, 2*8, 30*8-1 ) MCFG_SCREEN_UPDATE(cbasebal) MCFG_GFXDECODE(cbasebal) MCFG_PALETTE_LENGTH(1024) MCFG_VIDEO_START(cbasebal) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) MCFG_SOUND_ADD("ymsnd", YM2413, 3579545) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) MACHINE_CONFIG_END /************************************* * * ROM definition(s) * *************************************/ ROM_START( cbasebal ) ROM_REGION( 0x90000, "maincpu", 0 ) ROM_LOAD( "cbj10.11j", 0x00000, 0x08000, CRC(bbff0acc) SHA1(db9e2c89e030255851789caaf85f24dc73609d9b) ) ROM_LOAD( "cbj07.16f", 0x10000, 0x20000, CRC(8111d13f) SHA1(264e21e824c87f55da326440c6ed71e1c287a63e) ) ROM_LOAD( "cbj06.14f", 0x30000, 0x20000, CRC(9aaa0e37) SHA1(1a7b96b44c66b58f06707aafb1806520747b8c76) ) ROM_LOAD( "cbj05.13f", 0x50000, 0x20000, CRC(d0089f37) SHA1(32354c3f4693a65e297791c4d8faac3aa9cff5a1) ) /* 0x70000-0x8ffff empty (space for 04) */ ROM_REGION( 0x10000, "gfx1", 0 ) ROM_LOAD( "cbj13.16m", 0x00000, 0x10000, CRC(2359fa0a) SHA1(3a37532ea43dd4b150c53a240d35a57a9b76d23d) ) /* text */ ROM_REGION( 0x80000, "gfx2", 0 ) ROM_LOAD( "cbj02.1f", 0x00000, 0x20000, CRC(d6740535) SHA1(2ece885525718fd5fe52b8fa4c07930695b89659) ) /* tiles */ ROM_LOAD( "cbj03.2f", 0x20000, 0x20000, CRC(88098dcd) SHA1(caddebeea581129d6a62fc9f7f354d61eef175c7) ) ROM_LOAD( "cbj08.1j", 0x40000, 0x20000, CRC(5f3344bf) SHA1(1d3193078108e86e31bbfce15a8d2443cfbf2ff6) ) ROM_LOAD( "cbj09.2j", 0x60000, 0x20000, CRC(aafffdae) SHA1(26e76b55fff49811df8e5b1f165be20ec8dd196a) ) ROM_REGION( 0x80000, "gfx3", 0 ) ROM_LOAD( "cbj11.1m", 0x00000, 0x20000, CRC(bdc1507d) SHA1(efeaf3066acfb7186d73ad8e5b291d6e61965de2) ) /* sprites */ ROM_LOAD( "cbj12.2m", 0x20000, 0x20000, CRC(973f3efe) SHA1(d776499d5ac4bc23eb5d1f28b88447cc07d8ac99) ) ROM_LOAD( "cbj14.1n", 0x40000, 0x20000, CRC(765dabaa) SHA1(742d1c50b65f649f23eac7976fe26c2d7400e4e1) ) ROM_LOAD( "cbj15.2n", 0x60000, 0x20000, CRC(74756de5) SHA1(791d6620cdb563f0b3a717432aa4647981b0a10e) ) ROM_REGION( 0x80000, "oki", 0 ) /* OKIM */ ROM_LOAD( "cbj01.1e", 0x00000, 0x20000, CRC(1d8968bd) SHA1(813e475d1d0c343e7dad516f1fe564d00c9c27fb) ) ROM_END /************************************* * * Driver initialization * *************************************/ static DRIVER_INIT( cbasebal ) { pang_decode(machine); } /************************************* * * Game driver(s) * *************************************/ GAME( 1989, cbasebal, 0, cbasebal, cbasebal, cbasebal, ROT0, "Capcom", "Capcom Baseball (Japan)", GAME_SUPPORTS_SAVE )