diff options
Diffstat (limited to 'src/mame/drivers/cbasebal.cpp')
-rw-r--r-- | src/mame/drivers/cbasebal.cpp | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/src/mame/drivers/cbasebal.cpp b/src/mame/drivers/cbasebal.cpp new file mode 100644 index 00000000000..7ae08b20537 --- /dev/null +++ b/src/mame/drivers/cbasebal.cpp @@ -0,0 +1,354 @@ +// license:BSD-3-Clause +// copyright-holders:Nicola Salmoria +/*************************************************************************** + + 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 "machine/kabuki.h" // needed for decoding functions only +#include "includes/cbasebal.h" +#include "machine/eepromser.h" +#include "sound/okim6295.h" +#include "sound/2413intf.h" + + +/************************************* + * + * Memory handlers + * + *************************************/ + +WRITE8_MEMBER(cbasebal_state::cbasebal_bankswitch_w) +{ + /* bits 0-4 select ROM bank */ + //logerror("%04x: bankswitch %02x\n", space.device().safe_pc(), data); + membank("bank1")->set_entry(data & 0x1f); + membank("bank1d")->set_entry(data & 0x1f); + + /* bit 5 used but unknown */ + + /* bits 6-7 select RAM bank */ + m_rambank = (data & 0xc0) >> 6; +} + + +READ8_MEMBER(cbasebal_state::bankedram_r) +{ + switch (m_rambank) + { + case 2: + return cbasebal_textram_r(space, offset); /* VRAM */ + case 1: + if (offset < 0x800) + return m_palette->basemem().read8(offset); + else + return 0; + default: + return cbasebal_scrollram_r(space, offset); /* SCROLL */ + } +} + +WRITE8_MEMBER(cbasebal_state::bankedram_w) +{ + switch (m_rambank) + { + case 2: + cbasebal_textram_w(space, offset, data); + break; + case 1: + if (offset < 0x800) + m_palette->write(space, offset, data); + break; + default: + cbasebal_scrollram_w(space, offset, data); + break; + } +} + +WRITE8_MEMBER(cbasebal_state::cbasebal_coinctrl_w) +{ + coin_lockout_w(machine(), 0, ~data & 0x04); + coin_lockout_w(machine(), 1, ~data & 0x08); + coin_counter_w(machine(), 0, data & 0x01); + coin_counter_w(machine(), 1, data & 0x02); +} + + +/************************************* + * + * Address maps + * + *************************************/ + +static ADDRESS_MAP_START( cbasebal_map, AS_PROGRAM, 8, cbasebal_state ) + AM_RANGE(0x0000, 0x7fff) AM_ROM + AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1") + AM_RANGE(0xc000, 0xcfff) AM_READWRITE(bankedram_r, bankedram_w) AM_SHARE("palette") /* palette + vram + scrollram */ + AM_RANGE(0xe000, 0xfdff) AM_RAM /* work RAM */ + AM_RANGE(0xfe00, 0xffff) AM_RAM AM_SHARE("spriteram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( decrypted_opcodes_map, AS_DECRYPTED_OPCODES, 8, cbasebal_state ) + AM_RANGE(0x0000, 0x7fff) AM_ROMBANK("bank0d") + AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1d") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( cbasebal_portmap, AS_IO, 8, cbasebal_state ) + 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("oki", okim6295_device, write) + AM_RANGE(0x06, 0x07) AM_DEVWRITE("ymsnd", ym2413_device, write) + 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_CUSTOM ) PORT_VBLANK("screen") /* ? */ + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_READ_LINE_DEVICE_MEMBER("eeprom", eeprom_serial_93cxx_device, do_read) + + PORT_START( "IO_01" ) + PORT_BIT( 0x00000010, IP_ACTIVE_HIGH, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_serial_93cxx_device, cs_write) + + PORT_START( "IO_02" ) + PORT_BIT( 0x00000020, IP_ACTIVE_LOW, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_serial_93cxx_device, clk_write) + + PORT_START( "IO_03" ) + PORT_BIT( 0x00000040, IP_ACTIVE_HIGH, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE_MEMBER("eeprom", eeprom_serial_93cxx_device, di_write) +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 + * + *************************************/ + +void cbasebal_state::machine_start() +{ + save_item(NAME(m_rambank)); + save_item(NAME(m_tilebank)); + save_item(NAME(m_spritebank)); + save_item(NAME(m_text_on)); + save_item(NAME(m_bg_on)); + save_item(NAME(m_obj_on)); + save_item(NAME(m_flipscreen)); + save_item(NAME(m_scroll_x)); + save_item(NAME(m_scroll_y)); +} + +void cbasebal_state::machine_reset() +{ + m_rambank = 0; + m_tilebank = 0; + m_spritebank = 0; + m_text_on = 0; + m_bg_on = 0; + m_obj_on = 0; + m_flipscreen = 0; + m_scroll_x[0] = 0; + m_scroll_x[1] = 0; + m_scroll_y[0] = 0; + 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_DECRYPTED_OPCODES_MAP(decrypted_opcodes_map) + MCFG_CPU_VBLANK_INT_DRIVER("screen", cbasebal_state, irq0_line_hold) /* ??? */ + + MCFG_EEPROM_SERIAL_93C46_ADD("eeprom") + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK) + MCFG_SCREEN_REFRESH_RATE(60) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) + 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_DRIVER(cbasebal_state, screen_update_cbasebal) + MCFG_SCREEN_PALETTE("palette") + + MCFG_GFXDECODE_ADD("gfxdecode", "palette", cbasebal) + + MCFG_PALETTE_ADD("palette", 1024) + MCFG_PALETTE_FORMAT(xxxxBBBBRRRRGGGG) + + /* 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 + * + *************************************/ + +DRIVER_INIT_MEMBER(cbasebal_state,cbasebal) +{ + UINT8 *src = memregion("maincpu")->base(); + int size = memregion("maincpu")->bytes(); + UINT8 *dst = auto_alloc_array(machine(), UINT8, size); + pang_decode(src, dst, size); + membank("bank1")->configure_entries(0, 32, src + 0x10000, 0x4000); + membank("bank0d")->set_base(dst); + membank("bank1d")->configure_entries(0, 32, dst + 0x10000, 0x4000); +} + + +/************************************* + * + * Game driver(s) + * + *************************************/ + +GAME( 1989, cbasebal, 0, cbasebal, cbasebal, cbasebal_state, cbasebal, ROT0, "Capcom", "Capcom Baseball (Japan)", MACHINE_SUPPORTS_SAVE ) |