/***************************************************************************
Zero Zone memory map
driver by Brad Oliver
CPU 1 : 68000, uses irq 1
0x000000 - 0x01ffff : ROM
0x080000 - 0x08000f : input ports and dipswitches
0x088000 - 0x0881ff : palette RAM, 256 total colors
0x09ce00 - 0x09d9ff : video ram, 48x32
0x0c0000 - 0x0cffff : RAM
0x0f8000 - 0x0f87ff : RAM (unused?)
Stephh's notes :
IMO, the game only has 2 buttons (1 to rotate the pieces and 1 for help).
The 3rd button (when the Dip Switch is activated) subs one "line"
(0x0c0966 for player 1 and 0x0c1082 for player 2) each time it is pressed.
As I don't see why such thing would REALLY exist, I've added the
IPF_CHEAT flag for the Dip Switch and the 3rd button of each player.
TODO:
* adpcm samples don't seem to be playing at the proper tempo - too fast?
***************************************************************************/
#include "driver.h"
#include "sound/okim6295.h"
VIDEO_START( zerozone );
VIDEO_UPDATE( zerozone );
WRITE16_HANDLER( zerozone_tilemap_w );
WRITE16_HANDLER( zerozone_tilebank_w );
extern UINT16 *zerozone_videoram;
static READ16_HANDLER( zerozone_input_r )
{
switch (offset)
{
case 0x00:
return input_port_read(machine, "SYSTEM");
case 0x01:
return input_port_read(machine, "INPUTS");
case 0x04:
return input_port_read(machine, "DSWB");
case 0x05:
return input_port_read(machine, "DSWA");
}
logerror("CPU #0 PC %06x: warning - read unmapped memory address %06x\n",activecpu_get_pc(),0x800000+offset);
return 0x00;
}
static WRITE16_HANDLER( zerozone_sound_w )
{
if (ACCESSING_BITS_8_15)
{
soundlatch_w(machine,offset,data >> 8);
cpunum_set_input_line_and_vector(machine, 1,0,HOLD_LINE,0xff);
}
}
static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x01ffff) AM_ROM
AM_RANGE(0x080000, 0x08000f) AM_READ(zerozone_input_r)
AM_RANGE(0x084000, 0x084001) AM_WRITE(zerozone_sound_w)
AM_RANGE(0x088000, 0x0881ff) AM_RAM_WRITE(paletteram16_RRRRGGGGBBBBRGBx_word_w) AM_BASE(&paletteram16)
AM_RANGE(0x098000, 0x098001) AM_RAM /* Watchdog? */
AM_RANGE(0x09ce00, 0x09ffff) AM_RAM_WRITE(zerozone_tilemap_w) AM_BASE(&zerozone_videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x0b4000, 0x0b4001) AM_WRITE(zerozone_tilebank_w)
AM_RANGE(0x0c0000, 0x0cffff) AM_RAM
AM_RANGE(0x0f8000, 0x0f87ff) AM_RAM /* Never read from */
ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0x87ff) AM_RAM
AM_RANGE(0x9800, 0x9800) AM_READWRITE(okim6295_status_0_r, okim6295_data_0_w)
AM_RANGE(0xa000, 0xa000) AM_READ(soundlatch_r)
ADDRESS_MAP_END
static INPUT_PORTS_START( zerozone )
PORT_START("SYSTEM")
PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("INPUTS")
PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_NAME("P1 Score Line (Cheat)")
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_NAME("P2 Score Line (Cheat)")
PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("DSWA")
PORT_DIPNAME( 0x0007, 0x0007, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x0000, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x0001, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x0002, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x0003, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x0007, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x0006, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x0005, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) )
PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Difficulty ) )
PORT_DIPSETTING( 0x0008, "In Game Default" ) // 130, 162 or 255 "lines"
PORT_DIPSETTING( 0x0000, "Always Hard" ) // 255 "lines"
PORT_DIPNAME( 0x0010, 0x0010, "Speed" )
PORT_DIPSETTING( 0x0010, DEF_STR( Normal ) ) // Drop every 20 frames
PORT_DIPSETTING( 0x0000, "Fast" ) // Drop every 18 frames
PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0020, DEF_STR( On ) )
PORT_DIPUNUSED( 0x0040, IP_ACTIVE_LOW )
PORT_DIPUNUSED( 0x0080, IP_ACTIVE_LOW )
PORT_START("DSWB")
PORT_DIPUNUSED( 0x0100, IP_ACTIVE_LOW )
PORT_DIPUNUSED( 0x0200, IP_ACTIVE_LOW )
PORT_DIPNAME( 0x0400, 0x0400, "Helps" )
PORT_DIPSETTING( 0x0400, "1" )
PORT_DIPSETTING( 0x0000, "2" )
PORT_DIPNAME( 0x0800, 0x0800, "Bonus Help" )
PORT_DIPSETTING( 0x0000, "30000" )
PORT_DIPSETTING( 0x0800, DEF_STR( None ) )
PORT_DIPNAME( 0x1000, 0x1000, "Activate 'Score Line'? (Cheat)")
PORT_DIPSETTING( 0x1000, DEF_STR( No ) )
PORT_DIPSETTING( 0x0000, DEF_STR( Yes ) )
PORT_DIPUNUSED( 0x2000, IP_ACTIVE_LOW )
PORT_DIPUNUSED( 0x4000, IP_ACTIVE_LOW )
PORT_SERVICE( 0x8000, IP_ACTIVE_LOW )
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8, /* 8*8 characters */
RGN_FRAC(1,1), /* 4096 characters */
4, /* 4 bits per pixel */
{ 0, 1, 2, 3 },
{ 0, 4, 8+0, 8+4, 16+0, 16+4, 24+0, 24+4 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
32*8 /* every sprite takes 32 consecutive bytes */
};
static GFXDECODE_START( zerozone )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 256 ) /* sprites & playfield */
GFXDECODE_END
static MACHINE_DRIVER_START( zerozone )
/* basic machine hardware */
MDRV_CPU_ADD("main", M68000, 10000000) /* 10 MHz */
MDRV_CPU_PROGRAM_MAP(main_map,0)
MDRV_CPU_VBLANK_INT("main", irq1_line_hold)
MDRV_CPU_ADD("audio", Z80, 1000000) /* 1 MHz ??? */
MDRV_CPU_PROGRAM_MAP(sound_map,0)
MDRV_INTERLEAVE(10)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(64*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(1*8, 47*8-1, 2*8, 30*8-1)
MDRV_GFXDECODE(zerozone)
MDRV_PALETTE_LENGTH(256)
MDRV_VIDEO_START(zerozone)
MDRV_VIDEO_UPDATE(zerozone)
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("oki", OKIM6295, 1056000)
MDRV_SOUND_CONFIG(okim6295_interface_pin7high) // clock frequency & pin 7 not verified
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( zerozone )
ROM_REGION( 0x20000, "main", 0 ) /* 128k for 68000 code */
ROM_LOAD16_BYTE( "zz-4.rom", 0x0000, 0x10000, CRC(83718b9b) SHA1(b3fc6da5816142b9c92a7b8615eb5bcb2c78ea46) )
ROM_LOAD16_BYTE( "zz-5.rom", 0x0001, 0x10000, CRC(18557f41) SHA1(6ef908732b7775c1ea2b33f799635075db5756de) )
ROM_REGION( 0x10000, "audio", 0 ) /* sound cpu */
ROM_LOAD( "zz-1.rom", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) )
ROM_REGION( 0x080000, "gfx1", ROMREGION_DISPOSE )
ROM_LOAD( "zz-6.rom", 0x00000, 0x80000, CRC(c8b906b9) SHA1(1775d69df6397d6772b20c65751d44556d76c033) )
ROM_REGION( 0x40000, "oki", 0 ) /* ADPCM samples */
ROM_LOAD( "zz-2.rom", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) )
ROM_LOAD( "zz-3.rom", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) )
ROM_END
ROM_START( lvgirl94 )
ROM_REGION( 0x20000, "main", 0 ) /* 128k for 68000 code */
ROM_LOAD16_BYTE( "rom4", 0x0000, 0x10000, CRC(c4fb449e) SHA1(dd1c567ba2cf951267dd622e2e9af265e742f246) )
ROM_LOAD16_BYTE( "rom5", 0x0001, 0x10000, CRC(5d446a1a) SHA1(2d7ea25e5b86e7cf4eb7f10daa1eaaaed6830a53) )
ROM_REGION( 0x080000, "gfx1", ROMREGION_DISPOSE )
ROM_LOAD( "rom6", 0x00000, 0x40000, CRC(eeeb94ba) SHA1(9da09312c090ef2d40f596247d9a7decf3724e54) )
/* sound roms are the same as zerozone */
ROM_REGION( 0x10000, "audio", 0 ) /* sound cpu */
ROM_LOAD( "rom1", 0x00000, 0x08000, CRC(223ccce5) SHA1(3aa25ca914960b929dc853d07a958ed874e42fee) )
ROM_REGION( 0x40000, "oki", 0 ) /* ADPCM samples */
ROM_LOAD( "rom2", 0x00000, 0x20000, CRC(c7551e81) SHA1(520de3074fa6a71fef10d5a76cba5580fd1cbbae) )
ROM_LOAD( "rom3", 0x20000, 0x20000, CRC(e348ff5e) SHA1(6d2755d9b31366f4c2ddd296790234deb8f821c8) )
ROM_END
GAME( 1993, zerozone, 0, zerozone, zerozone, 0, ROT0, "Comad", "Zero Zone", 0 )
GAME( 1994, lvgirl94, 0, zerozone, zerozone, 0, ROT0, "Comad", "Las Vegas Girl (Girl '94)", 0 )