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Diffstat (limited to 'trunk/src/mame/drivers/blmbycar.c')
-rw-r--r--trunk/src/mame/drivers/blmbycar.c546
1 files changed, 546 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/blmbycar.c b/trunk/src/mame/drivers/blmbycar.c
new file mode 100644
index 00000000000..a91d3ba5108
--- /dev/null
+++ b/trunk/src/mame/drivers/blmbycar.c
@@ -0,0 +1,546 @@
+/***************************************************************************
+
+ -= Blomby Car =-
+
+ driver by Luca Elia (l.elia@tin.it)
+
+
+Main CPU : 68000
+Video Chips : TI TPC1020AFN-084 (= Actel A1020A PL84C 9548)
+Sound Chips : K-665 9546 (= M6295)
+
+To Do:
+
+- Flip screen unused ?
+- Better driving wheel(s) support
+
+Blomby Car is said to be a bootleg of Gaelco's World Rally and uses many
+of the same fonts
+
+Waterball
+
+Check game speed, it depends on a bit we toggle..
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/m68000/m68000.h"
+#include "sound/okim6295.h"
+#include "includes/blmbycar.h"
+
+
+/***************************************************************************
+
+
+ Sound Banking
+
+
+***************************************************************************/
+
+/* The top 64k of samples are banked (16 banks total) */
+
+WRITE16_MEMBER(blmbycar_state::blmbycar_okibank_w)
+{
+ if (ACCESSING_BITS_0_7)
+ {
+ UINT8 *RAM = memregion("oki")->base();
+ memcpy(&RAM[0x30000], &RAM[0x40000 + 0x10000 * (data & 0xf)], 0x10000);
+ }
+}
+
+/***************************************************************************
+
+
+ Input Handling
+
+
+***************************************************************************/
+
+/* Preliminary potentiometric wheel support */
+
+WRITE16_MEMBER(blmbycar_state::blmbycar_pot_wheel_reset_w)
+{
+
+ if (ACCESSING_BITS_0_7)
+ m_pot_wheel = ~ioport("WHEEL")->read() & 0xff;
+}
+
+WRITE16_MEMBER(blmbycar_state::blmbycar_pot_wheel_shift_w)
+{
+
+ if (ACCESSING_BITS_0_7)
+ {
+ if ( ((m_old_val & 0xff) == 0xff) && ((data & 0xff) == 0) )
+ m_pot_wheel <<= 1;
+ m_old_val = data;
+ }
+}
+
+READ16_MEMBER(blmbycar_state::blmbycar_pot_wheel_r)
+{
+ return ((m_pot_wheel & 0x80) ? 0x04 : 0) | (machine().rand() & 0x08);
+}
+
+
+/* Preliminary optical wheel support */
+
+READ16_MEMBER(blmbycar_state::blmbycar_opt_wheel_r)
+{
+ return (~ioport("WHEEL")->read() & 0xff) << 8;
+}
+
+
+/***************************************************************************
+
+
+ Memory Maps
+
+
+***************************************************************************/
+
+static ADDRESS_MAP_START( blmbycar_map, AS_PROGRAM, 16, blmbycar_state )
+ AM_RANGE(0x000000, 0x0fffff) AM_ROM
+ AM_RANGE(0xfec000, 0xfeffff) AM_RAM
+ AM_RANGE(0x100000, 0x103fff) AM_WRITEONLY // ???
+ AM_RANGE(0x104000, 0x105fff) AM_RAM_WRITE(blmbycar_vram_1_w) AM_SHARE("vram_1") // Layer 1
+ AM_RANGE(0x106000, 0x107fff) AM_RAM_WRITE(blmbycar_vram_0_w) AM_SHARE("vram_0") // Layer 0
+ AM_RANGE(0x108000, 0x10bfff) AM_WRITEONLY // ???
+ AM_RANGE(0x10c000, 0x10c003) AM_WRITEONLY AM_SHARE("scroll_1") // Scroll 1
+ AM_RANGE(0x10c004, 0x10c007) AM_WRITEONLY AM_SHARE("scroll_0") // Scroll 0
+ AM_RANGE(0x200000, 0x2005ff) AM_RAM_WRITE(blmbycar_palette_w) // Palette
+ AM_RANGE(0x200600, 0x203fff) AM_RAM
+ AM_RANGE(0x204000, 0x2045ff) AM_RAM_WRITE(blmbycar_palette_w) AM_SHARE("paletteram") // Palette
+ AM_RANGE(0x204600, 0x207fff) AM_RAM
+ AM_RANGE(0x440000, 0x441fff) AM_RAM
+ AM_RANGE(0x444000, 0x445fff) AM_WRITEONLY AM_SHARE("spriteram")// Sprites (size?)
+ AM_RANGE(0x700000, 0x700001) AM_READ_PORT("DSW")
+ AM_RANGE(0x700002, 0x700003) AM_READ_PORT("P1_P2")
+ AM_RANGE(0x700004, 0x700005) AM_READ(blmbycar_opt_wheel_r) // Wheel (optical)
+ AM_RANGE(0x700006, 0x700007) AM_READ_PORT("UNK")
+ AM_RANGE(0x700008, 0x700009) AM_READ(blmbycar_pot_wheel_r) // Wheel (potentiometer)
+ AM_RANGE(0x70000a, 0x70000b) AM_WRITENOP // ? Wheel
+ AM_RANGE(0x70000c, 0x70000d) AM_WRITE(blmbycar_okibank_w) // Sound
+ AM_RANGE(0x70000e, 0x70000f) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0x00ff) // Sound
+ AM_RANGE(0x70006a, 0x70006b) AM_WRITE(blmbycar_pot_wheel_reset_w) // Wheel (potentiometer)
+ AM_RANGE(0x70007a, 0x70007b) AM_WRITE(blmbycar_pot_wheel_shift_w) //
+ADDRESS_MAP_END
+
+READ16_MEMBER(blmbycar_state::waterball_unk_r)
+{
+
+ m_retvalue ^= 0x0008; // must toggle.. but not vblank?
+ return m_retvalue;
+}
+
+static ADDRESS_MAP_START( watrball_map, AS_PROGRAM, 16, blmbycar_state )
+ AM_RANGE(0x000000, 0x0fffff) AM_ROM
+ AM_RANGE(0xfec000, 0xfeffff) AM_RAM
+ AM_RANGE(0x100000, 0x103fff) AM_WRITEONLY // ???
+ AM_RANGE(0x104000, 0x105fff) AM_RAM_WRITE(blmbycar_vram_1_w) AM_SHARE("vram_1") // Layer 1
+ AM_RANGE(0x106000, 0x107fff) AM_RAM_WRITE(blmbycar_vram_0_w) AM_SHARE("vram_0") // Layer 0
+ AM_RANGE(0x108000, 0x10bfff) AM_WRITEONLY // ???
+ AM_RANGE(0x10c000, 0x10c003) AM_WRITEONLY AM_SHARE("scroll_1") // Scroll 1
+ AM_RANGE(0x10c004, 0x10c007) AM_WRITEONLY AM_SHARE("scroll_0") // Scroll 0
+ AM_RANGE(0x200000, 0x2005ff) AM_RAM_WRITE(blmbycar_palette_w) // Palette
+ AM_RANGE(0x200600, 0x203fff) AM_RAM
+ AM_RANGE(0x204000, 0x2045ff) AM_RAM_WRITE(blmbycar_palette_w) AM_SHARE("paletteram") // Palette
+ AM_RANGE(0x204600, 0x207fff) AM_RAM
+ AM_RANGE(0x440000, 0x441fff) AM_RAM
+ AM_RANGE(0x444000, 0x445fff) AM_WRITEONLY AM_SHARE("spriteram")// Sprites (size?)
+ AM_RANGE(0x700000, 0x700001) AM_READ_PORT("DSW")
+ AM_RANGE(0x700002, 0x700003) AM_READ_PORT("P1_P2")
+ AM_RANGE(0x700006, 0x700007) AM_READNOP // read
+ AM_RANGE(0x700008, 0x700009) AM_READ(waterball_unk_r) // 0x0008 must toggle
+ AM_RANGE(0x70000a, 0x70000b) AM_WRITEONLY // ?? busy
+ AM_RANGE(0x70000c, 0x70000d) AM_WRITE(blmbycar_okibank_w) // Sound
+ AM_RANGE(0x70000e, 0x70000f) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0x00ff) //
+ADDRESS_MAP_END
+
+/***************************************************************************
+
+
+ Input Ports
+
+
+***************************************************************************/
+
+static INPUT_PORTS_START( blmbycar )
+
+ PORT_START("DSW") /* $700000.w */
+ PORT_DIPNAME( 0x0003, 0x0003, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW1:8,7")
+ PORT_DIPSETTING( 0x0002, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x0003, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x0001, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) )
+ PORT_DIPNAME( 0x0004, 0x0004, "Joysticks" ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x0000, "1" )
+ PORT_DIPSETTING( 0x0004, "2" )
+ PORT_DIPNAME( 0x0018, 0x0018, DEF_STR( Controls ) ) PORT_DIPLOCATION("SW1:5,4")
+ PORT_DIPSETTING( 0x0018, DEF_STR( Joystick ) )
+// PORT_DIPSETTING( 0x0010, "Pot Wheel" ) // Preliminary
+// PORT_DIPSETTING( 0x0008, "Opt Wheel" ) // Preliminary
+// PORT_DIPSETTING( 0x0000, DEF_STR( Unused ) ) // Time goes to 0 rally fast!
+ PORT_DIPNAME( 0x0020, 0x0000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:3")
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0040, 0x0040, "Unknown 1-2" ) PORT_DIPLOCATION("SW1:2")
+ PORT_DIPSETTING( 0x0040, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_SERVICE_DIPLOC( 0x0080, IP_ACTIVE_LOW, "SW1:1" )
+
+ PORT_DIPNAME( 0x0700, 0x0700, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW2:8,7,6")
+ PORT_DIPSETTING( 0x0700, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 3C_4C ) )
+ PORT_DIPSETTING( 0x0100, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x0600, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0500, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0300, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0200, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x3800, 0x3800, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW2:5,4,3")
+ PORT_DIPSETTING( 0x1000, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x1800, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x2000, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x2800, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x3000, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0800, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 4C_3C ) )
+ PORT_DIPSETTING( 0x3800, DEF_STR( 1C_1C ) )
+ PORT_DIPNAME( 0x4000, 0x4000, "Credits To Start" ) PORT_DIPLOCATION("SW2:2")
+ PORT_DIPSETTING( 0x4000, "1" )
+ PORT_DIPSETTING( 0x0000, "2" )
+ PORT_DIPNAME( 0x8000, 0x8000, DEF_STR( Free_Play ) ) PORT_DIPLOCATION("SW2:1")
+ PORT_DIPSETTING( 0x8000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+
+ PORT_START("P1_P2") /* $700002.w */
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_COIN2 )
+
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_START2 )
+
+ PORT_START("WHEEL") /* $700004.w */
+ PORT_BIT ( 0x00ff, 0x0080, IPT_AD_STICK_X ) PORT_SENSITIVITY(30) PORT_KEYDELTA(1)
+
+ PORT_START("UNK") /* $700006.w */
+ PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( watrball )
+ PORT_START("DSW")
+ PORT_DIPNAME( 0x0003, 0x0003, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW1:8,7") /* Affects timer */
+ PORT_DIPSETTING( 0x0002, DEF_STR( Easy ) ) /* 180 Seconds */
+ PORT_DIPSETTING( 0x0003, DEF_STR( Normal ) ) /* 150 Seconds */
+ PORT_DIPSETTING( 0x0001, DEF_STR( Hard ) ) /* 120 Seconds */
+ PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) ) /* 100 Seconds */
+ PORT_DIPUNUSED_DIPLOC( 0x0004, 0x0004, "SW1:6" )
+ PORT_DIPUNUSED_DIPLOC( 0x0008, 0x0008, "SW1:5" )
+ PORT_DIPUNUSED_DIPLOC( 0x0010, 0x0010, "SW1:4" )
+ PORT_DIPNAME( 0x0020, 0x0000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:3")
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0040, 0x0040, "Unknown 1-2" ) PORT_DIPLOCATION("SW1:2")
+ PORT_DIPSETTING( 0x0040, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_SERVICE_DIPLOC( 0x0080, IP_ACTIVE_LOW, "SW1:1" )
+
+ PORT_DIPNAME( 0x0700, 0x0700, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW2:8,7,6")
+ PORT_DIPSETTING( 0x0700, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 3C_4C ) )
+ PORT_DIPSETTING( 0x0100, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x0600, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0500, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0300, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0200, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x3800, 0x3800, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW2:5,4,3")
+ PORT_DIPSETTING( 0x1000, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x1800, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x2000, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x2800, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x3000, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0800, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 4C_3C ) )
+ PORT_DIPSETTING( 0x3800, DEF_STR( 1C_1C ) )
+ PORT_DIPUNUSED_DIPLOC( 0x4000, 0x4000, "SW2:2" )
+ PORT_DIPUNUSED_DIPLOC( 0x8000, 0x8000, "SW2:1" )
+
+ PORT_START("P1_P2")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_COIN2 )
+
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_START2 )
+INPUT_PORTS_END
+
+/***************************************************************************
+
+
+ Graphics Layouts
+
+
+***************************************************************************/
+
+/* 16x16x4 tiles (made of four 8x8 tiles) */
+static const gfx_layout layout_16x16x4 =
+{
+ 16,16,
+ RGN_FRAC(1,4),
+ 4,
+ { RGN_FRAC(3,4),RGN_FRAC(2,4),RGN_FRAC(1,4),RGN_FRAC(0,4) },
+ { STEP8(0,1), STEP8(8*8*2,1) },
+ { STEP8(0,8), STEP8(8*8*1,8) },
+ 16*16
+};
+
+/* Layers both use the first $20 color codes. Sprites the next $10 */
+static GFXDECODE_START( blmbycar )
+ GFXDECODE_ENTRY( "sprites", 0, layout_16x16x4, 0x0, 0x30 ) // [0] Layers + Sprites
+GFXDECODE_END
+
+
+
+/***************************************************************************
+
+
+ Machine Drivers
+
+
+***************************************************************************/
+
+static MACHINE_START( blmbycar )
+{
+ blmbycar_state *state = machine.driver_data<blmbycar_state>();
+
+ state->save_item(NAME(state->m_pot_wheel));
+ state->save_item(NAME(state->m_old_val));
+}
+
+static MACHINE_RESET( blmbycar )
+{
+ blmbycar_state *state = machine.driver_data<blmbycar_state>();
+
+ state->m_pot_wheel = 0;
+ state->m_old_val = 0;
+}
+
+
+static MACHINE_CONFIG_START( blmbycar, blmbycar_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000, 10000000) /* ? */
+ MCFG_CPU_PROGRAM_MAP(blmbycar_map)
+ MCFG_CPU_VBLANK_INT("screen", irq1_line_hold)
+
+ MCFG_MACHINE_START(blmbycar)
+ MCFG_MACHINE_RESET(blmbycar)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+ MCFG_SCREEN_SIZE(0x180, 0x100)
+ MCFG_SCREEN_VISIBLE_AREA(0, 0x180-1, 0, 0x100-1)
+ MCFG_SCREEN_UPDATE_STATIC(blmbycar)
+
+ MCFG_GFXDECODE(blmbycar)
+ MCFG_PALETTE_LENGTH(0x300)
+
+ MCFG_VIDEO_START(blmbycar)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
+MACHINE_CONFIG_END
+
+
+static MACHINE_START( watrball )
+{
+ blmbycar_state *state = machine.driver_data<blmbycar_state>();
+
+ state->save_item(NAME(state->m_retvalue));
+}
+
+static MACHINE_RESET( watrball )
+{
+ blmbycar_state *state = machine.driver_data<blmbycar_state>();
+
+ state->m_retvalue = 0;
+}
+
+static MACHINE_CONFIG_START( watrball, blmbycar_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000, 10000000) /* ? */
+ MCFG_CPU_PROGRAM_MAP(watrball_map)
+ MCFG_CPU_VBLANK_INT("screen", irq1_line_hold)
+
+ MCFG_MACHINE_START(watrball)
+ MCFG_MACHINE_RESET(watrball)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ MCFG_SCREEN_SIZE(0x180, 0x100)
+ MCFG_SCREEN_VISIBLE_AREA(0, 0x180-1, 16, 0x100-1)
+ MCFG_SCREEN_UPDATE_STATIC(blmbycar)
+
+ MCFG_GFXDECODE(blmbycar)
+ MCFG_PALETTE_LENGTH(0x300)
+
+ MCFG_VIDEO_START(blmbycar)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
+MACHINE_CONFIG_END
+
+
+/***************************************************************************
+
+
+ ROMs Loading
+
+
+***************************************************************************/
+
+/***************************************************************************
+
+ Blomby Car
+Abm & Gecas, 1990.
+
+CPU : 68000
+SND : Oki M6295 (samples only)
+OSC : 30.000 + 24.000
+DSW : 2 x 8
+GFX : TI TPC1020AFN-084
+
+***************************************************************************/
+
+ROM_START( blmbycar )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "bcrom4.bin", 0x000000, 0x080000, CRC(06d490ba) SHA1(6d113561b474bf613c6b91c9525a52025ae65ab7) )
+ ROM_LOAD16_BYTE( "bcrom6.bin", 0x000001, 0x080000, CRC(33aca664) SHA1(04fff492654d3edac62e9d35808e5946bcc78cbb) )
+
+ ROM_REGION( 0x200000, "sprites", 0 ) /* Sprites */
+ ROM_LOAD( "bc_rom7", 0x000000, 0x080000, CRC(e55ca79b) SHA1(4453a6ae0518832f437ab701c28cb2f32920f8ba) )
+ ROM_LOAD( "bc_rom8", 0x080000, 0x080000, CRC(cdf38c96) SHA1(3273c29b6a01a7296d06fc653120f8c615195d2c) )
+ ROM_LOAD( "bc_rom9", 0x100000, 0x080000, CRC(0337ab3d) SHA1(18c72cd640c7b599390dffaeb670f5832202bf06) )
+ ROM_LOAD( "bc_rom10", 0x180000, 0x080000, CRC(5458917e) SHA1(c8dd5a391cc20a573e27a140b185893a8c04859e) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* 8 bit adpcm (banked) */
+ ROM_LOAD( "bc_rom1", 0x040000, 0x080000, CRC(ac6f8ba1) SHA1(69d2d47cdd331bde5a8973d29659b3f8520452e7) )
+ ROM_LOAD( "bc_rom2", 0x0c0000, 0x080000, CRC(a4bc31bf) SHA1(f3d60141a91449a73f6cec9f4bc5d95ca7911e19) )
+ ROM_COPY( "oki", 0x040000, 0x000000, 0x040000 )
+ROM_END
+
+ROM_START( blmbycaru )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "bc_rom4", 0x000000, 0x080000, CRC(76f054a2) SHA1(198efd152b13033e5249119ca48b9e0f6351b0b9) )
+ ROM_LOAD16_BYTE( "bc_rom6", 0x000001, 0x080000, CRC(2570b4c5) SHA1(706465950023a6ef7c85ceb9c76246d7556b3859) )
+
+ ROM_REGION( 0x200000, "sprites", 0 ) /* Sprites */
+ ROM_LOAD( "bc_rom7", 0x000000, 0x080000, CRC(e55ca79b) SHA1(4453a6ae0518832f437ab701c28cb2f32920f8ba) )
+ ROM_LOAD( "bc_rom8", 0x080000, 0x080000, CRC(cdf38c96) SHA1(3273c29b6a01a7296d06fc653120f8c615195d2c) )
+ ROM_LOAD( "bc_rom9", 0x100000, 0x080000, CRC(0337ab3d) SHA1(18c72cd640c7b599390dffaeb670f5832202bf06) )
+ ROM_LOAD( "bc_rom10", 0x180000, 0x080000, CRC(5458917e) SHA1(c8dd5a391cc20a573e27a140b185893a8c04859e) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* 8 bit adpcm (banked) */
+ ROM_LOAD( "bc_rom1", 0x040000, 0x080000, CRC(ac6f8ba1) SHA1(69d2d47cdd331bde5a8973d29659b3f8520452e7) )
+ ROM_LOAD( "bc_rom2", 0x0c0000, 0x080000, CRC(a4bc31bf) SHA1(f3d60141a91449a73f6cec9f4bc5d95ca7911e19) )
+ ROM_COPY( "oki", 0x040000, 0x000000, 0x040000 )
+ROM_END
+
+/*
+
+Waterball by ABM (sticker on the pcb 12-3-96)
+The pcb has some empty sockets, maybe it was used for other games since it has no markings.
+
+The game has fonts identical to World rally and obiviously Blomby car ;)
+
+1x 68k
+1x oki 6295
+1x OSC 30mhz
+1x OSC 24mhz
+1x FPGA
+1x dispswitch
+
+*/
+
+ROM_START( watrball )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "rom4.bin", 0x000000, 0x020000, CRC(bfbfa720) SHA1(d6d14c0ba545eb7adee7190da2d3db1c6dd00d75) )
+ ROM_LOAD16_BYTE( "rom6.bin", 0x000001, 0x020000, CRC(acff9b01) SHA1(b85671bcc4f03fdf05eb1c9b5d4143e33ec1d7db) )
+
+ ROM_REGION( 0x200000, "sprites", 0 ) /* Sprites */
+ ROM_LOAD( "rom7.bin", 0x000000, 0x080000, CRC(e7e5c311) SHA1(5af1a666bf23c5505d120d81fb942f5c49341861) )
+ ROM_LOAD( "rom8.bin", 0x080000, 0x080000, CRC(fd27ce6e) SHA1(a472a8cc25818427d2870518649780146e51835b) )
+ ROM_LOAD( "rom9.bin", 0x100000, 0x080000, CRC(122cc0ad) SHA1(27cdb19fa082089e47c5cdb44742cfd93aa23a00) )
+ ROM_LOAD( "rom10.bin", 0x180000, 0x080000, CRC(22a2a706) SHA1(c7350a94a857e0007d7fc0076b44a3d62693cb6c) )
+
+ ROM_REGION( 0x140000, "oki", 0 ) /* 8 bit adpcm (banked) */
+ ROM_LOAD( "rom1.bin", 0x040000, 0x080000, CRC(7f88dee7) SHA1(d493b961fa4631185a33faee7f61786430707209))
+// ROM_LOAD( "rom2.bin", 0x0c0000, 0x080000, /* not populated for this game */ )
+ ROM_COPY( "oki", 0x040000, 0x000000, 0x040000 )
+ROM_END
+
+
+static DRIVER_INIT( blmbycar )
+{
+ UINT16 *RAM = (UINT16 *) machine.root_device().memregion("maincpu")->base();
+ size_t size = machine.root_device().memregion("maincpu")->bytes() / 2;
+ int i;
+
+ for (i = 0; i < size; i++)
+ {
+ UINT16 x = RAM[i];
+ x = (x & ~0x0606) | ((x & 0x0202) << 1) | ((x & 0x0404) >> 1);
+ RAM[i] = x;
+ }
+}
+
+/***************************************************************************
+
+
+ Game Drivers
+
+
+***************************************************************************/
+
+GAME( 1994, blmbycar, 0, blmbycar, blmbycar, blmbycar, ROT0, "ABM & Gecas", "Blomby Car", GAME_SUPPORTS_SAVE )
+GAME( 1994, blmbycaru,blmbycar, blmbycar, blmbycar, 0, ROT0, "ABM & Gecas", "Blomby Car (not encrypted)", GAME_SUPPORTS_SAVE )
+GAME( 1996, watrball, 0, watrball, watrball, 0, ROT0, "ABM", "Water Balls", GAME_SUPPORTS_SAVE )