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Diffstat (limited to 'trunk/src/mame/drivers/4enraya.c')
-rw-r--r--trunk/src/mame/drivers/4enraya.c300
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 )