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/*****************************************************************************

Momoko 120% (c) 1986 Jaleco

    Driver by Uki

    02/Mar/2001 -

******************************************************************************

Notes

Real machine has some bugs.(escalator bug, sprite garbage)
It is not emulation bug.
Flipped screen looks wrong, but it is correct.



Stephh's notes (based on the game Z80 code and some tests) :

  - Accoding to the "initialisation" routine (code at 0x2a23),
    the "Bonus Life" Dip Switches shall be coded that way :

      PORT_DIPNAME( 0x03, 0x03, "1st Bonus Life" )
      PORT_DIPSETTING(    0x01, "20k" )
      PORT_DIPSETTING(    0x03, "30k" )
      PORT_DIPSETTING(    0x02, "50k" )
      PORT_DIPSETTING(    0x00, "100k" )
      PORT_DIPNAME( 0x0c, 0x0c, "2nd Bonus Life" )
      PORT_DIPSETTING(    0x04, "100k" )
      PORT_DIPSETTING(    0x08, "200k" )
      PORT_DIPSETTING(    0x00, "500k" )
      PORT_DIPSETTING(    0x0c, DEF_STR( None ) )

    But in the "check score for life" routine (code at 29c3),
    there is a 'ret' instruction (0xc9) instead of 'retc' (0xd8)
    that doesn't allow the player to get a 2nd bonus life !
  - DSW1 is read each frame (code at 0x2197), but result is
    completely discarded due to 'xor' instruction at 0x219a.
    I can't tell what this read is supposed to do.

*****************************************************************************/

#include "driver.h"
#include "cpu/z80/z80.h"
#include "sound/2203intf.h"

extern UINT8 *momoko_bg_scrollx;
extern UINT8 *momoko_bg_scrolly;

VIDEO_UPDATE( momoko );

WRITE8_HANDLER( momoko_fg_scrollx_w );
WRITE8_HANDLER( momoko_fg_scrolly_w );
WRITE8_HANDLER( momoko_text_scrolly_w );
WRITE8_HANDLER( momoko_text_mode_w );
WRITE8_HANDLER( momoko_bg_scrollx_w );
WRITE8_HANDLER( momoko_bg_scrolly_w );
WRITE8_HANDLER( momoko_flipscreen_w );
WRITE8_HANDLER( momoko_fg_select_w);
WRITE8_HANDLER( momoko_bg_select_w);
WRITE8_HANDLER( momoko_bg_priority_w);

static WRITE8_HANDLER( momoko_bg_read_bank_w )
{
	UINT8 *BG_MAP = memory_region(space->machine, "user1");
	int bank_address = (data & 0x1f) * 0x1000;
	memory_set_bankptr(space->machine, 1, &BG_MAP[bank_address]);
}

/****************************************************************************/

static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xbfff) AM_READ(SMH_ROM)
	AM_RANGE(0xc000, 0xcfff) AM_READ(SMH_RAM)

	AM_RANGE(0xd064, 0xd0ff) AM_READ(SMH_RAM) /* sprite ram */

	AM_RANGE(0xd400, 0xd400) AM_READ_PORT("IN0")
	AM_RANGE(0xd402, 0xd402) AM_READ_PORT("IN1")
	AM_RANGE(0xd406, 0xd406) AM_READ_PORT("DSW0")
	AM_RANGE(0xd407, 0xd407) AM_READ_PORT("DSW1")

	AM_RANGE(0xd800, 0xdbff) AM_READ(SMH_RAM)
	AM_RANGE(0xe000, 0xe3ff) AM_READ(SMH_RAM) /* text */

	AM_RANGE(0xf000, 0xffff) AM_READ(SMH_BANK1)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xbfff) AM_WRITE(SMH_ROM)
	AM_RANGE(0xc000, 0xcfff) AM_WRITE(SMH_RAM)

	AM_RANGE(0xd064, 0xd0ff) AM_WRITE(SMH_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size)

	AM_RANGE(0xd400, 0xd400) AM_WRITE(SMH_NOP) /* interrupt ack? */
	AM_RANGE(0xd402, 0xd402) AM_WRITE(momoko_flipscreen_w)
	AM_RANGE(0xd404, 0xd404) AM_WRITE(watchdog_reset_w)
	AM_RANGE(0xd406, 0xd406) AM_WRITE(soundlatch_w)

	AM_RANGE(0xd800, 0xdbff) AM_WRITE(paletteram_xxxxRRRRGGGGBBBB_be_w) AM_BASE(&paletteram)

	AM_RANGE(0xdc00, 0xdc00) AM_WRITE(momoko_fg_scrolly_w)
	AM_RANGE(0xdc01, 0xdc01) AM_WRITE(momoko_fg_scrollx_w)
	AM_RANGE(0xdc02, 0xdc02) AM_WRITE(momoko_fg_select_w)

	AM_RANGE(0xe000, 0xe3ff) AM_WRITE(SMH_RAM) AM_BASE(&videoram) AM_SIZE(&videoram_size)

	AM_RANGE(0xe800, 0xe800) AM_WRITE(momoko_text_scrolly_w)
	AM_RANGE(0xe801, 0xe801) AM_WRITE(momoko_text_mode_w)

	AM_RANGE(0xf000, 0xf001) AM_WRITE(momoko_bg_scrolly_w) AM_BASE(&momoko_bg_scrolly)
	AM_RANGE(0xf002, 0xf003) AM_WRITE(momoko_bg_scrollx_w) AM_BASE(&momoko_bg_scrollx)
	AM_RANGE(0xf004, 0xf004) AM_WRITE(momoko_bg_read_bank_w)
	AM_RANGE(0xf006, 0xf006) AM_WRITE(momoko_bg_select_w)
	AM_RANGE(0xf007, 0xf007) AM_WRITE(momoko_bg_priority_w)
ADDRESS_MAP_END

static ADDRESS_MAP_START( readmem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_READ(SMH_ROM)
	AM_RANGE(0x8000, 0x87ff) AM_READ(SMH_RAM)
	AM_RANGE(0xa000, 0xa001) AM_DEVREAD("ym1", ym2203_r)
	AM_RANGE(0xc000, 0xc001) AM_DEVREAD("ym2", ym2203_r)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writemem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_WRITE(SMH_ROM)
	AM_RANGE(0x8000, 0x87ff) AM_WRITE(SMH_RAM)
	AM_RANGE(0x9000, 0x9000) AM_WRITE(SMH_NOP) /* unknown */
	AM_RANGE(0xa000, 0xa001) AM_DEVWRITE("ym1", ym2203_w)
	AM_RANGE(0xb000, 0xb000) AM_WRITE(SMH_NOP) /* unknown */
	AM_RANGE(0xc000, 0xc001) AM_DEVWRITE("ym2", ym2203_w)
ADDRESS_MAP_END

/****************************************************************************/

static INPUT_PORTS_START( momoko )
	PORT_START("IN0")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )  PORT_8WAY
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )  PORT_8WAY
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP )    PORT_8WAY

	PORT_START("IN1")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )  PORT_8WAY PORT_COCKTAIL
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )  PORT_8WAY PORT_COCKTAIL
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP )    PORT_8WAY PORT_COCKTAIL

	PORT_START("DSW0")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x02, "4" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "255 (Cheat)" )
	PORT_DIPNAME( 0x1c, 0x1c, DEF_STR( Coinage ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 5C_1C ) )
	PORT_DIPSETTING(    0x14, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x18, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x1c, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0x60, 0x60, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )

	PORT_START("DSW1")
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Bonus_Life ) )       /* see notes */
	PORT_DIPSETTING(    0x01, "20k" )
	PORT_DIPSETTING(    0x03, "30k" )
	PORT_DIPSETTING(    0x02, "50k" )
	PORT_DIPSETTING(    0x00, "100k" )
	PORT_DIPUNUSED( 0x04, IP_ACTIVE_LOW )                   /* see notes */
	PORT_DIPUNUSED( 0x08, IP_ACTIVE_LOW )                   /* see notes */
	PORT_DIPNAME( 0x10, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x20, DEF_STR( On ) )
	PORT_DIPUNUSED( 0x40, IP_ACTIVE_LOW )
	PORT_DIPUNUSED( 0x80, IP_ACTIVE_LOW )

	PORT_START("FAKE")
	PORT_DIPNAME( 0x01, 0x00, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(	0x01, DEF_STR( On ) )
INPUT_PORTS_END

/****************************************************************************/

static const gfx_layout charlayout =
{
	8,8,    /* 8*8 characters */
	256,    /* 256 characters */
	2,      /* 2 bits per pixel */
	{4, 0},
	{0, 1, 2, 3, 256*8*8+0, 256*8*8+1, 256*8*8+2, 256*8*8+3},
	{8*0, 8*1, 8*2, 8*3, 8*4, 8*5, 8*6, 8*7},
	8*8
};

static const gfx_layout spritelayout =
{
	8,16,     /* 8*16 characters */
	2048-128, /* 1024 sprites ( ccc 0ccccccc ) */
	4,        /* 4 bits per pixel */
	{12,8,4,0},
	{0, 1, 2, 3, 4096*8+0, 4096*8+1, 4096*8+2, 4096*8+3},
	{0, 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},
	8*32
};

static const gfx_layout tilelayout =
{
	8,8,      /* 8*8 characters */
	8192-256, /* 4096 tiles ( cccc0 cccccccc ) */
	4,        /* 4 bits per pixel */
	{4,0,12,8},
	{0, 1, 2, 3, 4096*8+0, 4096*8+1, 4096*8+2, 4096*8+3},
	{0, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16},
	8*16
};

static const gfx_layout charlayout1 =
{
	8,1,    /* 8*1 characters */
	256*8,  /* 2048 characters */
	2,      /* 2 bits per pixel */
	{4, 0},
	{0, 1, 2, 3, 256*8*8+0, 256*8*8+1, 256*8*8+2, 256*8*8+3},
	{8*0},
	8*1
};

static GFXDECODE_START( momoko )
	GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout1,      0,  24 ) /* TEXT */
	GFXDECODE_ENTRY( "gfx2", 0x0000, tilelayout,     256,  16 ) /* BG */
	GFXDECODE_ENTRY( "gfx3", 0x0000, charlayout,       0,   1 ) /* FG */
	GFXDECODE_ENTRY( "gfx4", 0x0000, spritelayout,   128,   8 ) /* sprite */
GFXDECODE_END

/****************************************************************************/

static const ym2203_interface ym2203_config =
{
	{
		AY8910_LEGACY_OUTPUT,
		AY8910_DEFAULT_LOADS,
		DEVCB_MEMORY_HANDLER("audiocpu", PROGRAM, soundlatch_r),
		DEVCB_NULL,
		DEVCB_NULL,
		DEVCB_NULL
	},
	NULL
};

static MACHINE_DRIVER_START( momoko )

	/* basic machine hardware */
	MDRV_CPU_ADD("maincpu", Z80, 5000000)	/* 5.0MHz */
	MDRV_CPU_PROGRAM_MAP(readmem,writemem)
	MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)

	MDRV_CPU_ADD("audiocpu", Z80, 2500000)	/* 2.5MHz */
	MDRV_CPU_PROGRAM_MAP(readmem_sound,writemem_sound)

	/* video hardware */
	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(32*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 2*8, 29*8-1)

	MDRV_GFXDECODE(momoko)
	MDRV_PALETTE_LENGTH(512)

	MDRV_VIDEO_UPDATE(momoko)

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_MONO("mono")

	MDRV_SOUND_ADD("ym1", YM2203, 1250000)
	MDRV_SOUND_ROUTE(0, "mono", 0.15)
	MDRV_SOUND_ROUTE(1, "mono", 0.15)
	MDRV_SOUND_ROUTE(2, "mono", 0.15)
	MDRV_SOUND_ROUTE(3, "mono", 0.40)

	MDRV_SOUND_ADD("ym2", YM2203, 1250000)
	MDRV_SOUND_CONFIG(ym2203_config)
	MDRV_SOUND_ROUTE(0, "mono", 0.15)
	MDRV_SOUND_ROUTE(1, "mono", 0.15)
	MDRV_SOUND_ROUTE(2, "mono", 0.15)
	MDRV_SOUND_ROUTE(3, "mono", 0.40)
MACHINE_DRIVER_END

/****************************************************************************/

ROM_START( momoko )
	ROM_REGION( 0x10000, "maincpu", 0 ) /* main CPU */
	ROM_LOAD( "momoko03.bin", 0x0000,  0x8000, CRC(386e26ed) SHA1(ad746ed1b87bafc5b4df9a28aade58cf894f4e7b) )
	ROM_LOAD( "momoko02.bin", 0x8000,  0x4000, CRC(4255e351) SHA1(27a0e8d8aea223d2128139582e3b66106f3608ef) )

	ROM_REGION( 0x10000, "audiocpu", 0 ) /* sound CPU */
	ROM_LOAD( "momoko01.bin", 0x0000,  0x8000, CRC(e8a6673c) SHA1(f8984b063929305c9058801202405e6d45254b5b) )

	ROM_REGION( 0x2000, "gfx1", ROMREGION_DISPOSE ) /* text */
	ROM_LOAD( "momoko13.bin", 0x0000,  0x2000, CRC(2745cf5a) SHA1(3db7c6319cac63df1620ef25508c5c45eaa4b141) )

	ROM_REGION( 0x2000, "gfx3", ROMREGION_DISPOSE ) /* FG */
	ROM_LOAD( "momoko14.bin", 0x0000,  0x2000, CRC(cfccca05) SHA1(4ecff488a37ac76ecb9ecf8980bea30dcc9c9951) )

	ROM_REGION( 0x10000, "gfx4", ROMREGION_DISPOSE ) /* sprite */
	ROM_LOAD16_BYTE( "momoko16.bin", 0x0000,  0x8000, CRC(fc6876fc) SHA1(b2d06bc01ef9f4db9bf8902d67f31ccbb0fea61a) )
	ROM_LOAD16_BYTE( "momoko17.bin", 0x0001,  0x8000, CRC(45dc0247) SHA1(1b2bd4197ab7d237966e037c249b5bd623646c0b) )

	ROM_REGION( 0x20000, "gfx2", 0 ) /* BG */
	ROM_LOAD16_BYTE( "momoko09.bin", 0x00000, 0x8000, CRC(9f5847c7) SHA1(6bc9a00622d8a23446294a8d5d467375c5719125) )
	ROM_LOAD16_BYTE( "momoko11.bin", 0x00001, 0x8000, CRC(9c9fbd43) SHA1(7adfd7ea3dd6745c14e719883f1a86e0a3b3c0ff) )
	ROM_LOAD16_BYTE( "momoko10.bin", 0x10000, 0x8000, CRC(ae17e74b) SHA1(f52657ea6b6ac518b70fd7b811d9699da27f67d9) )
	ROM_LOAD16_BYTE( "momoko12.bin", 0x10001, 0x8000, CRC(1e29c9c4) SHA1(d78f102cefc9852b529dd317a76c7003ec2ad3d5) )

	ROM_REGION( 0x20000, "user1", 0 ) /* BG map */
	ROM_LOAD( "momoko04.bin", 0x0000,  0x8000, CRC(3ab3c2c3) SHA1(d4a0d7f83bf64769e90a2c264c6114ac308cb8b5) )
	ROM_LOAD( "momoko05.bin", 0x8000,  0x8000, CRC(757cdd2b) SHA1(3471b42dc6458a18894dbd0638f4fe43c86dd70d) )
	ROM_LOAD( "momoko06.bin", 0x10000, 0x8000, CRC(20cacf8b) SHA1(e2b39abfc960e1c472e2bcf0cf06825c39941c03) )
	ROM_LOAD( "momoko07.bin", 0x18000, 0x8000, CRC(b94b38db) SHA1(9c9e45bbeca7b6b8b0051b144fb31fceaf5d6906) )

	ROM_REGION( 0x2000, "user2", 0 ) /* BG color/priority table */
	ROM_LOAD( "momoko08.bin", 0x0000,  0x2000, CRC(69b41702) SHA1(21b33b243dd6eaec8d41d9fd4d9e7faf2bd7f4d2) )

	ROM_REGION( 0x4000, "user3", 0 ) /* FG map */
	ROM_LOAD( "momoko15.bin", 0x0000,  0x4000, CRC(8028f806) SHA1(c7450d48803082f64af67fe752b6f49b71b6ff48) )

	ROM_REGION( 0x0120, "proms", 0 ) /* TEXT color */
	ROM_LOAD( "momoko-c.bin", 0x0000,  0x0100, CRC(f35ccae0) SHA1(60b99dd3c96637dacba7e96a143b1a2d6ffd28b9) )
	ROM_LOAD( "momoko-b.bin", 0x0100,  0x0020, CRC(427b0e5c) SHA1(aa2797b899571527cc96013fd3420b841954ee67) )
ROM_END

GAME( 1986, momoko, 0, momoko, momoko, 0, ROT0, "Jaleco", "Momoko 120%", 0 )