diff options
Diffstat (limited to 'trunk/src/mame/drivers/4enraya.c')
-rw-r--r-- | trunk/src/mame/drivers/4enraya.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/4enraya.c b/trunk/src/mame/drivers/4enraya.c new file mode 100644 index 00000000000..9cbb4d7f563 --- /dev/null +++ b/trunk/src/mame/drivers/4enraya.c @@ -0,0 +1,300 @@ +/*************************************************************************** + +Driver by Tomasz Slanina dox@space.pl + +TODO: +- video and irq timings; +- there's a waitstate penalty on the VRAM apparently? + +*************************************************************************** + +RAM : + 1 x GM76c28-10 (6116) RAM + 3 x 2114 - VRAM (only 10 bits are used ) + +ROM: + 27256 + 27128 for code/data + 3x2764 for gfx + +PROM: + 82S123 32x8 + Used for system control + (d0 - connected to ROM5 /CS , d1 - ROM4 /CS, d2 - RAM /CS , d3 - to some logic(gfx control), and Z80 WAIT ) + +Memory Map : + 0x0000 - 0xbfff - ROM + 0xc000 - 0xcfff - RAM + 0xd000 - 0xdfff - VRAM mirrored write, + tilemap offset = address & 0x3ff + tile number = bits 0-7 = data, bits 8,9 = address bits 10,11 + 0xe000 - 0xefff - VRAM mirror + 0xf000 - 0xffff - (unconnected) + +Video : + No scrolling , no sprites. + 32x32 Tilemap stored in VRAM (10 bits/tile (tile numebr 0-1023)) + + 3 gfx ROMS + ROM1 - R component (ROM ->(parallel in) shift register 74166 (serial out) -> jamma output + ROM2 - G component + ROM3 - B component + +Sound : + AY 3 8910 + + sound_control : + + bit 0 - BC1 + bit 1 - BC2 + bit 2 - BDIR + + bits 3-7 - not connected + +***************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "sound/ay8910.h" +#include "includes/4enraya.h" + +#define MAIN_CLOCK XTAL_8MHz + +static WRITE8_HANDLER( sound_data_w ) +{ + _4enraya_state *state = space->machine().driver_data<_4enraya_state>(); + state->m_soundlatch = data; +} + +static WRITE8_DEVICE_HANDLER( sound_control_w ) +{ + _4enraya_state *state = device->machine().driver_data<_4enraya_state>(); + + if ((state->m_last_snd_ctrl & 0x04) == 0x04 && (data & 0x4) == 0x00) + ay8910_data_address_w(device, state->m_last_snd_ctrl, state->m_soundlatch); + + state->m_last_snd_ctrl = data; +} + +static READ8_HANDLER( fenraya_custom_map_r ) +{ + UINT8 *prom = space->machine().region("pal_prom")->base(); + UINT8 prom_routing = (prom[offset >> 12] & 0xf) ^ 0xf; + UINT8 res; + + res = 0; + + if(prom_routing & 1) //ROM5 + { + UINT8 *rom = space->machine().region("maincpu")->base(); + res |= rom[offset & 0x7fff]; + } + + if(prom_routing & 2) //ROM4 + { + UINT8 *rom = space->machine().region("maincpu")->base(); + res |= rom[(offset & 0x7fff) | 0x8000]; + } + + if(prom_routing & 4) //RAM + { + _4enraya_state *state = space->machine().driver_data<_4enraya_state>(); + res |= state->m_workram[offset & 0xfff]; + } + + if(prom_routing & 8) //gfx control / RAM wait + { + _4enraya_state *state = space->machine().driver_data<_4enraya_state>(); + res |= state->m_videoram[offset & 0xfff]; + } + + return res; +} + +static WRITE8_HANDLER( fenraya_custom_map_w ) +{ + UINT8 *prom = space->machine().region("pal_prom")->base(); + UINT8 prom_routing = (prom[offset >> 12] & 0xf) ^ 0xf; + + if(prom_routing & 1) //ROM5 + { + // ... + } + + if(prom_routing & 2) //ROM4 + { + // ... + } + + if(prom_routing & 4) //RAM + { + _4enraya_state *state = space->machine().driver_data<_4enraya_state>(); + state->m_workram[offset & 0xfff] = data; + } + + if(prom_routing & 8) //gfx control / RAM wait + { + fenraya_videoram_w(space,offset & 0xfff,data); + } +} + +static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 ) + AM_RANGE(0x0000, 0xffff) AM_READWRITE(fenraya_custom_map_r,fenraya_custom_map_w) + #if 0 + AM_RANGE(0x0000, 0xbfff) AM_ROM + AM_RANGE(0xc000, 0xcfff) AM_RAM + AM_RANGE(0xd000, 0xdfff) AM_WRITE(fenraya_videoram_w) AM_BASE_SIZE_MEMBER(_4enraya_state, m_videoram, m_videoram_size) + AM_RANGE(0xe000, 0xefff) AM_WRITE(fenraya_videoram_w) + AM_RANGE(0xf000, 0xffff) AM_NOP + #endif +ADDRESS_MAP_END + +static ADDRESS_MAP_START( main_portmap, AS_IO, 8 ) + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00, 0x00) AM_READ_PORT("DSW") + AM_RANGE(0x01, 0x01) AM_READ_PORT("INPUTS") + AM_RANGE(0x02, 0x02) AM_READ_PORT("SYSTEM") + AM_RANGE(0x23, 0x23) AM_WRITE(sound_data_w) + AM_RANGE(0x33, 0x33) AM_DEVWRITE("aysnd", sound_control_w) +ADDRESS_MAP_END + + +static INPUT_PORTS_START( 4enraya ) + PORT_START("DSW") + PORT_DIPNAME( 0x01, 0x01, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW1:1") + PORT_DIPSETTING( 0x01, DEF_STR( Easy ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Hard ) ) + PORT_DIPNAME( 0x02, 0x00, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:2") + PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x04, "Pieces" ) PORT_DIPLOCATION("SW1:3") + PORT_DIPSETTING( 0x04, "30" ) + PORT_DIPSETTING( 0x00, "16" ) + PORT_DIPNAME( 0x08, 0x08, "Speed" ) PORT_DIPLOCATION("SW1:4") + PORT_DIPSETTING( 0x08, "Slow" ) + PORT_DIPSETTING( 0x00, "Fast" ) + PORT_DIPNAME( 0x30, 0x30, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:5,6") + PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 2C_3C ) ) + PORT_DIPSETTING( 0x10, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x20, DEF_STR( 1C_4C ) ) + PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:7,8") + PORT_DIPSETTING( 0x40, DEF_STR( 2C_1C ) ) + PORT_DIPSETTING( 0xc0, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 2C_3C ) ) + PORT_DIPSETTING( 0x80, DEF_STR( 1C_2C ) ) + + PORT_START("INPUTS") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 Down") // "drop" ("down") + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 Down") // "drop" ("down") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 Shot") // "fire" ("shot") + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 Shot") // "fire" ("shot") + + PORT_START("SYSTEM") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 ) +INPUT_PORTS_END + +static const gfx_layout charlayout = +{ + 8,8, + RGN_FRAC(1,3), + 3, + { RGN_FRAC(1,3), RGN_FRAC(2,3), RGN_FRAC(0,3) }, + { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 +}; + +static GFXDECODE_START( 4enraya ) + GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) +GFXDECODE_END + +static MACHINE_START( 4enraya ) +{ + _4enraya_state *state = machine.driver_data<_4enraya_state>(); + + state->save_item(NAME(state->m_soundlatch)); + state->save_item(NAME(state->m_last_snd_ctrl)); +} + +static MACHINE_RESET( 4enraya ) +{ + _4enraya_state *state = machine.driver_data<_4enraya_state>(); + + state->m_soundlatch = 0; + state->m_last_snd_ctrl = 0; +} + +static PALETTE_INIT( 4enraya ) +{ + int i; + + /* RGB format */ + for(i=0;i<8;i++) + palette_set_color(machine, i, MAKE_RGB(pal1bit(i >> 0),pal1bit(i >> 1),pal1bit(i >> 2))); +} + +static MACHINE_CONFIG_START( 4enraya, _4enraya_state ) + + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80,MAIN_CLOCK/2) + MCFG_CPU_PROGRAM_MAP(main_map) + MCFG_CPU_IO_MAP(main_portmap) + MCFG_CPU_PERIODIC_INT(irq0_line_hold,4*60) // unknown timing + + MCFG_MACHINE_START(4enraya) + MCFG_MACHINE_RESET(4enraya) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(60) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) + MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MCFG_SCREEN_SIZE(32*8, 32*8) + MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1) + MCFG_SCREEN_UPDATE(4enraya) + + MCFG_GFXDECODE(4enraya) + + MCFG_PALETTE_INIT(4enraya) + MCFG_PALETTE_LENGTH(8) + + MCFG_VIDEO_START(4enraya) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("aysnd", AY8910, MAIN_CLOCK/4) /* guess */ + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30) +MACHINE_CONFIG_END + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +ROM_START( 4enraya ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "5.bin", 0x0000, 0x8000, CRC(cf1cd151) SHA1(3920b0a6ed5798859158871b578b01ec742b0d13) ) + ROM_LOAD( "4.bin", 0x8000, 0x4000, CRC(f9ec1be7) SHA1(189159129ecbc4f6909c086867b0e02821f5b976) ) + + ROM_REGION( 0x6000, "gfx1", 0 ) + ROM_LOAD( "1.bin", 0x0000, 0x2000, CRC(87f92552) SHA1(d16afd963c30f2e60951876b843e5c1dcbee1cfc) ) + ROM_LOAD( "2.bin", 0x2000, 0x2000, CRC(2b0a3793) SHA1(2c3d224251557824bb9641dc2f98a000ab72c4a2) ) + ROM_LOAD( "3.bin", 0x4000, 0x2000, CRC(f6940836) SHA1(afde21ffa0c141cf73243e50da62ecfd474aaac2) ) + + ROM_REGION( 0x0020, "pal_prom", 0 ) + ROM_LOAD( "1.bpr", 0x0000, 0x0020, CRC(dcbd2352) SHA1(ce72e84129ed1b455aaf648e1dfaa4333e7e7628) ) /* system control: used for memory mapping */ +ROM_END + +GAME( 1990, 4enraya, 0, 4enraya, 4enraya, 0, ROT0, "IDSA", "4 En Raya", GAME_SUPPORTS_SAVE ) |