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

	DECO Cassette System driver

(01) Highway Chase (12/80)
(02) Sengoku Ninja tai (12/80)
(03) Manhattan (1/81)
(04) Terranean (81)
(??) Missile Sprinter (81)
(06) Nebula (3/81)
(07) Astro Fantasia (3/81)
(08) The Tower (2/81)
(09) Super Astro Fighter (5/81)
(??) Buramzon (81)
(11) Lock N Chase (4/81)
(12) The DECO BOY (Flash Boy) (8/81)
(13) Pro Golf (9/81)
(14) DS TeleJang (6/81)
(15) Lucky Poker (2/81)
(16) Treasure Island (1/82)
(18) Explorer (11/82)
(19) Disco No. 1 (3/82)
(20) Tornado (82)
(21) Mission X (3/82)
(22) Pro Tennis (5/82)
(??) Fishing (7/82)
(25) Angler Dandler
(26) Burger Time (6/83)
(27) Burnin' Rubber (11/82)
(27) Bump N Jump (4/83)
(28) Grapolop (11/82)
(29) Lappappa (11/82)
(30) Skater (3/83)
(31) Pro Bowling (10/83)
(32) Night Star (4/83)
(33) Pro Soccer (11/83)
(34) Super Doubles Tennis
(??) Cluster Buster (9/83)
(??) Genesis (11/83) <I think is may be Boomer Rangr'>
(??) Bambolin (83)
(37) Zeroize (10/83)
(38) Scrum Try (3/84)
(39) Peter Pepper's Ice Cream Factory (2/84)
(40) Fighting Ice Hockey (4/84)
(41) Oh Zumou (5/84)
(42) Hello Gate Ball (8/84)
(??) Yellow Cab (84)
(44) Boulder Dash (8/85)
(??) Tokyo Mie Sinryohjyo (10/84)
(??) Tokyo Mie Sinryohyo2 (1/85)
(??) Geinohijin Sikaku Siken (5/85)

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

#include "driver.h"
#include "cpu/m6502/m6502.h"
#include "vidhrdw/generic.h"
#include "machine/decocass.h"

/***************************************************************************
 *
 *	write decrypted opcodes
 *
 ***************************************************************************/

static INLINE int swap_bits_5_6(int data)
{
	return (data & 0x9f) | ((data & 0x20) << 1) | ((data & 0x40) >> 1);
}

WRITE_HANDLER( decocass_w )
{
	unsigned char *rom = memory_region(REGION_CPU1);
	int diff = memory_region_length(REGION_CPU1) / 2;

	if		(offset <= 0x5fff)					   ;
	else if (offset >= 0x6000 && offset <= 0xbfff) { decocass_charram_w(offset - 0x6000,data); return; }
	else if (offset >= 0xc000 && offset <= 0xc3ff) { decocass_fgvideoram_w(offset - 0xc000,data); return; }
	else if (offset >= 0xc400 && offset <= 0xc7ff) { decocass_colorram_w(offset - 0xc400,data); return; }
	else if (offset >= 0xc800 && offset <= 0xcbff) { decocass_mirrorvideoram_w(offset - 0xc800,data); return; }
	else if (offset >= 0xcc00 && offset <= 0xcfff) { decocass_mirrorcolorram_w(offset - 0xcc00,data); return; }
	else if (offset >= 0xd000 && offset <= 0xd7ff) { decocass_tileram_w(offset - 0xd000,data); return; }
	else if (offset >= 0xd800 && offset <= 0xdbff) { decocass_objectram_w(offset - 0xd800,data); return; }
	else if (offset >= 0xe000 && offset <= 0xe0ff) { decocass_paletteram_w(offset, data); return; }
	else if (offset == 0xe300 ) 				   { decocass_watchdog_count_w(offset - 0xe300,data); return; }
	else if (offset == 0xe301 ) 				   { decocass_watchdog_flip_w(offset - 0xe301,data); return; }
	else if (offset == 0xe302 ) 				   { decocass_color_missiles_w(offset - 0xe302,data); return; }
	else if (offset == 0xe400 ) 				   { decocass_reset_w(offset - 0xe400,data); return; }
	else if (offset == 0xe402 ) 				   { decocass_mode_set_w(offset - 0xe402,data); return; }
	else if (offset == 0xe403 ) 				   { decocass_back_h_shift_w(offset - 0xe403,data); return; }
	else if (offset == 0xe404 ) 				   { decocass_back_vl_shift_w(offset - 0xe404,data); return; }
	else if (offset == 0xe405 ) 				   { decocass_back_vr_shift_w(offset - 0xe405,data); return; }
	else if (offset == 0xe406 ) 				   { decocass_part_h_shift_w(offset - 0xe406,data); return; }
	else if (offset == 0xe407 ) 				   { decocass_part_v_shift_w(offset - 0xe407,data); return; }
	else if (offset == 0xe410 ) 				   { decocass_color_center_bot_w(offset - 0xe410,data); return; }
	else if (offset == 0xe411 ) 				   { decocass_center_h_shift_space_w(offset - 0xe411,data); return; }
	else if (offset == 0xe412 ) 				   { decocass_center_v_shift_w(offset - 0xe412,data); return; }
	else if (offset == 0xe413 ) 				   { decocass_coin_counter_w(offset - 0xe413,data); return; }
	else if (offset == 0xe414 ) 				   { decocass_sound_command_w(offset - 0xe414,data); return; }
	else if (offset >= 0xe415 && offset <= 0xe416) { decocass_quadrature_decoder_reset_w(offset - 0xe415,data); return; }
	else if (offset == 0xe417 ) 				   { decocass_nmi_reset_w(offset - 0xe417,data); return; }
	else if (offset >= 0xe420 && offset <= 0xe42f) { decocass_adc_w(offset - 0xe420,data); return; }
	else if (offset >= 0xe500 && offset <= 0xe5ff) { decocass_e5xx_w(offset - 0xe500,data); return; }
	else if (offset >= 0xf000 && offset <= 0xffff) { return; }

	else log_cb(RETRO_LOG_WARN, LOGPRE "CPU #%d PC %04x: warning - write %02x to unmapped memory address %04x\n",cpu_getactivecpu(),activecpu_get_pc(),data,offset);

	rom[offset] = data;

	/* Swap bits 5 & 6 for opcodes */
	rom[offset+diff] = swap_bits_5_6(data);
}

static MEMORY_READ_START( decocass_readmem )
	{ 0x0000, 0x1fff, MRA_RAM },
	{ 0x2000, 0xbfff, MRA_RAM },				/* RMS3 RAM */
	{ 0xc000, 0xc7ff, MRA_RAM },				/* DSP3 videoram + colorram */
	{ 0xc800, 0xcbff, decocass_mirrorvideoram_r },
	{ 0xcc00, 0xcfff, decocass_mirrorcolorram_r },
	{ 0xd000, 0xdbff, MRA_RAM },				/* B103 RAM */
	{ 0xe300, 0xe300, input_port_7_r }, 		/* DSW1 */
	{ 0xe301, 0xe301, input_port_8_r }, 		/* DSW2 */
	{ 0xe500, 0xe5ff, decocass_e5xx_r },		/* read data from 8041/status */
	{ 0xe600, 0xe6ff, decocass_input_r },		/* inputs */
	{ 0xe700, 0xe700, decocass_sound_data_r },	/* read sound CPU data */
	{ 0xe701, 0xe701, decocass_sound_ack_r },	/* read sound CPU ack status */
	{ 0xf000, 0xffff, MRA_ROM },
MEMORY_END

static MEMORY_WRITE_START( decocass_writemem )
	{ 0x0000, 0xffff, decocass_w },

	{ 0x0000, 0x1fff, MWA_RAM },
	{ 0x2000, 0x5fff, MWA_RAM },	/* RMS3 RAM */
	{ 0x6000, 0xbfff, decocass_charram_w, &decocass_charram }, /* still RMS3 RAM */
	{ 0xc000, 0xc3ff, decocass_fgvideoram_w, &decocass_fgvideoram, &decocass_fgvideoram_size },  /* DSP3 RAM */
	{ 0xc400, 0xc7ff, decocass_colorram_w, &decocass_colorram, &decocass_colorram_size },
	{ 0xc800, 0xcbff, decocass_mirrorvideoram_w },
	{ 0xcc00, 0xcfff, decocass_mirrorcolorram_w },
	{ 0xd000, 0xd7ff, decocass_tileram_w, &decocass_tileram, &decocass_tileram_size },
	{ 0xd800, 0xdbff, decocass_objectram_w, &decocass_objectram, &decocass_objectram_size },
	{ 0xe000, 0xe0ff, decocass_paletteram_w, &paletteram },
	{ 0xe300, 0xe300, decocass_watchdog_count_w },
	{ 0xe301, 0xe301, decocass_watchdog_flip_w },
	{ 0xe302, 0xe302, decocass_color_missiles_w },
	{ 0xe400, 0xe400, decocass_reset_w },

/* BIO-3 board */
	{ 0xe402, 0xe402, decocass_mode_set_w },
	{ 0xe403, 0xe403, decocass_back_h_shift_w },
	{ 0xe404, 0xe404, decocass_back_vl_shift_w },
	{ 0xe405, 0xe405, decocass_back_vr_shift_w },
	{ 0xe406, 0xe406, decocass_part_h_shift_w },
	{ 0xe407, 0xe407, decocass_part_v_shift_w },

	{ 0xe410, 0xe410, decocass_color_center_bot_w },
	{ 0xe411, 0xe411, decocass_center_h_shift_space_w },
	{ 0xe412, 0xe412, decocass_center_v_shift_w },
	{ 0xe413, 0xe413, decocass_coin_counter_w },
	{ 0xe414, 0xe414, decocass_sound_command_w },
	{ 0xe415, 0xe416, decocass_quadrature_decoder_reset_w },
	{ 0xe417, 0xe417, decocass_nmi_reset_w },
	{ 0xe420, 0xe42f, decocass_adc_w },

	{ 0xe500, 0xe5ff, decocass_e5xx_w },

	{ 0xf000, 0xffff, MWA_ROM },
MEMORY_END

static MEMORY_READ_START( decocass_sound_readmem )
	{ 0x0000, 0x0fff, MRA_RAM },
	{ 0x1000, 0x17ff, decocass_sound_nmi_enable_r },
	{ 0x1800, 0x1fff, decocass_sound_data_ack_reset_r },
	{ 0xa000, 0xafff, decocass_sound_command_r },
	{ 0xf800, 0xffff, MRA_ROM },
MEMORY_END

static MEMORY_WRITE_START( decocass_sound_writemem )
	{ 0x0000, 0x0fff, MWA_RAM },
	{ 0x1000, 0x17ff, decocass_sound_nmi_enable_w },
	{ 0x1800, 0x1fff, decocass_sound_data_ack_reset_w },
	{ 0x2000, 0x2fff, AY8910_write_port_0_w },
	{ 0x4000, 0x4fff, AY8910_control_port_0_w },
	{ 0x6000, 0x6fff, AY8910_write_port_1_w },
	{ 0x8000, 0x8fff, AY8910_control_port_1_w },
	{ 0xc000, 0xcfff, decocass_sound_data_w },
	{ 0xf800, 0xffff, MWA_ROM },
MEMORY_END

static MEMORY_READ_START( decocass_mcu_readmem )
	{ 0x0000, 0x03ff, MRA_ROM },
	{ 0x0800, 0x083f, MRA_RAM },
MEMORY_END

static MEMORY_WRITE_START( decocass_mcu_writemem )
	{ 0x0000, 0x03ff, MWA_ROM },
	{ 0x0800, 0x083f, MWA_RAM },
MEMORY_END

static PORT_READ_START( decocass_mcu_readport )
	{ 0x01, 0x01, i8041_p1_r },
	{ 0x02, 0x02, i8041_p2_r },
MEMORY_END

static PORT_WRITE_START( decocass_mcu_writeport )
	{ 0x01, 0x01, i8041_p1_w },
	{ 0x02, 0x02, i8041_p2_w },
MEMORY_END

INPUT_PORTS_START( decocass )
	PORT_START		/* IN0 */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH,IPT_JOYSTICK_RIGHT )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH,IPT_JOYSTICK_LEFT )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH,IPT_JOYSTICK_UP )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH,IPT_JOYSTICK_DOWN )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH,IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH,IPT_BUTTON2 )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH,IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH,IPT_UNUSED )

	PORT_START		/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH,IPT_JOYSTICK_RIGHT | IPF_COCKTAIL )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH,IPT_JOYSTICK_LEFT | IPF_COCKTAIL )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH,IPT_JOYSTICK_UP | IPF_COCKTAIL )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH,IPT_JOYSTICK_DOWN | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH,IPT_BUTTON1 | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH,IPT_BUTTON2 | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH,IPT_UNUSED )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH,IPT_UNUSED )

	PORT_START		/* IN2 */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH,IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH,IPT_UNKNOWN )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH,IPT_UNKNOWN )
	PORT_BIT_IMPULSE( 0x08, IP_ACTIVE_HIGH,IPT_START1, 1 )
	PORT_BIT_IMPULSE( 0x10, IP_ACTIVE_HIGH,IPT_START2, 1 )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH,IPT_UNKNOWN )
	PORT_BIT_IMPULSE( 0x40, IP_ACTIVE_LOW, IPT_COIN2, 1 )
	PORT_BIT_IMPULSE( 0x80, IP_ACTIVE_LOW, IPT_COIN1, 1 )

	PORT_START		/* IN3 */
	PORT_ANALOG( 0xff, 0x80, IPT_AD_STICK_X | IPF_PLAYER1, 100, 10, 0x10, 0xf0 )

	PORT_START		/* IN4 */
	PORT_ANALOG( 0xff, 0x80, IPT_AD_STICK_Y | IPF_PLAYER1, 100, 10, 0x10, 0xf0 )

	PORT_START		/* IN5 */
	PORT_ANALOG( 0xff, 0x80, IPT_AD_STICK_X | IPF_PLAYER2, 100, 10, 0x10, 0xf0 )

	PORT_START		/* IN6 */
	PORT_ANALOG( 0xff, 0x80, IPT_AD_STICK_Y | IPF_PLAYER2, 100, 10, 0x10, 0xf0 )

	PORT_START		/* DSW1 */
	PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(	0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(	0x03, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(	0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(	0x01, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(	0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(	0x0c, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(	0x08, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(	0x04, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x30, 0x30, "Board type" )    /* used by the "bios" */
	PORT_DIPSETTING(	0x00, "old" )
	PORT_DIPSETTING(	0x10, "invalid?" )
	PORT_DIPSETTING(	0x20, "invalid?" )
	PORT_DIPSETTING(	0x30, "new" )
	PORT_DIPNAME( 0x40, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(	0x40, DEF_STR( Cocktail ) )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK	)

	PORT_START		/* DSW2 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Lives ) )
	PORT_DIPSETTING(	0x01, "3" )
	PORT_DIPSETTING(	0x00, "5" )
	PORT_DIPNAME( 0x06, 0x06, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(	0x06, "20000" )
	PORT_DIPSETTING(	0x04, "30000" )
	PORT_DIPSETTING(	0x02, "40000"  )
	PORT_DIPSETTING(	0x00, "50000"  )
	PORT_DIPNAME( 0x08, 0x08, "Enemies" )
	PORT_DIPSETTING(	0x08, "4" )
	PORT_DIPSETTING(	0x00, "6" )
	PORT_DIPNAME( 0x10, 0x10, "End of Level Pepper" )
	PORT_DIPSETTING(	0x10, DEF_STR( No ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Yes ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(	0x20, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(	0x40, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(	0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(	0x80, DEF_STR( On ) )
INPUT_PORTS_END

static struct GfxLayout charlayout =
{
	8,8,	/* 8*8 characters */
	1024,	/* 1024 characters */
	3,		/* 3 bits per pixel */
	{ 2*1024*8*8, 1024*8*8, 0 },	/* the bitplanes are separated */
	{ 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 	/* every char takes 8 consecutive bytes */
};

static struct GfxLayout spritelayout =
{
	16,16,	/* 16*16 sprites */
	256,	/* 256 sprites */
	3,		/* 3 bits per pixel */
	{ 2*256*16*16, 256*16*16, 0 },	/* the bitplanes are separated */
	{ 16*8+0, 16*8+1, 16*8+2, 16*8+3, 16*8+4, 16*8+5, 16*8+6, 16*8+7,
	  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, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	32*8	/* every sprite takes 32 consecutive bytes */
};

static struct GfxLayout tilelayout =
{
	16,16,	/* 16*16 characters */
	16+1,	/* 16 tiles (+1 empty tile used in the half-width bg tilemaps) */
	3,	/* 3 bits per pixel */
	{ 2*16*16*16+4, 2*16*16*16+0, 4 },
	{ 3*16*8+0, 3*16*8+1, 3*16*8+2, 3*16*8+3,
	  2*16*8+0, 2*16*8+1, 2*16*8+2, 2*16*8+3,
	  16*8+0, 16*8+1, 16*8+2, 16*8+3,
	  0, 1, 2, 3 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
	  8*8, 9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
	2*16*16 /* every tile takes 64 consecutive bytes */
};

static struct GfxLayout objlayout =
{
	64,64,	/* 64x64 object */
	2,		/* 2 objects */
	1,		/* 1 bits per pixel */
	{ 0 },
	{
		7*8+0,7*8+1,7*8+2,7*8+3,7*8+4,7*8+5,7*8+6,7*8+7,
		6*8+0,6*8+1,6*8+2,6*8+3,6*8+4,6*8+5,6*8+6,6*8+7,
		5*8+0,5*8+1,5*8+2,5*8+3,5*8+4,5*8+5,5*8+6,5*8+7,
		4*8+0,4*8+1,4*8+2,4*8+3,4*8+4,4*8+5,4*8+6,4*8+7,
		3*8+0,3*8+1,3*8+2,3*8+3,3*8+4,3*8+5,3*8+6,3*8+7,
		2*8+0,2*8+1,2*8+2,2*8+3,2*8+4,2*8+5,2*8+6,2*8+7,
		1*8+0,1*8+1,1*8+2,1*8+3,1*8+4,1*8+5,1*8+6,1*8+7,
		0*8+0,0*8+1,0*8+2,0*8+3,0*8+4,0*8+5,0*8+6,0*8+7
	},
	{
		63*2*64,62*2*64,61*2*64,60*2*64,59*2*64,58*2*64,57*2*64,56*2*64,
		55*2*64,54*2*64,53*2*64,52*2*64,51*2*64,50*2*64,49*2*64,48*2*64,
		47*2*64,46*2*64,45*2*64,44*2*64,43*2*64,42*2*64,41*2*64,40*2*64,
		39*2*64,38*2*64,37*2*64,36*2*64,35*2*64,34*2*64,33*2*64,32*2*64,
		31*2*64,30*2*64,29*2*64,28*2*64,27*2*64,26*2*64,25*2*64,24*2*64,
		23*2*64,22*2*64,21*2*64,20*2*64,19*2*64,18*2*64,17*2*64,16*2*64,
		15*2*64,14*2*64,13*2*64,12*2*64,11*2*64,10*2*64, 9*2*64, 8*2*64,
		 7*2*64, 6*2*64, 5*2*64, 4*2*64, 3*2*64, 2*2*64, 1*2*64, 0*2*64
	},
	8*8 /* object takes 8 consecutive bytes */
};

static struct GfxLayout missilelayout =
{
	4,1,	/* 4x1 object ?? */
	1,		/* 1 object */
	1,		/* 1 bits per pixel */
	{ 0 },
	{ 0, 0, 0, 0, 0, 0, 0, 0 },
	{ 0, 0, 0, 0, 0, 0, 0, 0 },
	8	/* object takes a 1 bit from somewhere */
};

static struct GfxDecodeInfo decocass_gfxdecodeinfo[] =
{
	{ 0, 0x6000, &charlayout,		 0, 4 },  /* char set #1 */
	{ 0, 0x6000, &spritelayout, 	 0, 4 },  /* sprites */
	{ 0, 0xd000, &tilelayout,		32, 2 },  /* background tiles */
	{ 0, 0xd800, &objlayout,		48, 4 },  /* object */
	{ 0, 0xffff, &missilelayout,	 0, 8 },
	{ -1 } /* end of array */
};

static struct AY8910interface ay8910_interface =
{
	2,		/* 2 chips */
	1500000,		/* 1.5 MHz ? (hand tuned) */
	{ 40, 40 },
	{ 0 },
	{ 0 },
	{ 0 },
	{ 0 }
};

static PALETTE_INIT( decocass )
{
	int i;
	/* set up 32 colors 1:1 pens */
	for (i = 0; i < 32; i++)
		colortable[i] = i;

	/* setup straight/flipped colors for background tiles (D7 of color_center_bot ?) */
	for (i = 0; i < 8; i++)
	{
		colortable[32+i] = 3*8+i;
		colortable[40+i] = 3*8+((i << 1) & 0x04) + ((i >> 1) & 0x02) + (i & 0x01);
	}

	/* setup 4 colors for 1bpp object */
	colortable[48+0*2+0] = 0;
	colortable[48+0*2+1] = 25;	/* testtape red from 4th palette section? */
	colortable[48+1*2+0] = 0;
	colortable[48+1*2+1] = 28;	/* testtape blue from 4th palette section? */
	colortable[48+2*2+0] = 0;
	colortable[48+2*2+1] = 26;	/* testtape green from 4th palette section? */
	colortable[48+3*2+0] = 0;
	colortable[48+3*2+1] = 23;	/* ???? */
}


static MACHINE_DRIVER_START( decocass )

	/* basic machine hardware */
	MDRV_CPU_ADD(M6502,750000)
	MDRV_CPU_MEMORY(decocass_readmem,decocass_writemem)

	MDRV_CPU_ADD(M6502,500000) /* 500 kHz */
	MDRV_CPU_MEMORY(decocass_sound_readmem,decocass_sound_writemem)

	MDRV_CPU_ADD(I8X41,500000) /* 500 kHz ( I doubt it is 400kHz Al! )*/
	MDRV_CPU_MEMORY(decocass_mcu_readmem,decocass_mcu_writemem)
	MDRV_CPU_PORTS(decocass_mcu_readport,decocass_mcu_writeport)

	MDRV_FRAMES_PER_SECOND(57)
	MDRV_VBLANK_DURATION(3072)		/* frames per second, vblank duration */
	MDRV_INTERLEAVE(7)				/* interleave CPUs */
	
	MDRV_MACHINE_INIT(decocass)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_SIZE(32*8, 32*8)
	MDRV_VISIBLE_AREA(1*8, 31*8-1, 1*8, 31*8-1)
	MDRV_GFXDECODE(decocass_gfxdecodeinfo)
	MDRV_PALETTE_LENGTH(32)
	MDRV_COLORTABLE_LENGTH(32+2*8+2*4)

	MDRV_PALETTE_INIT(decocass)
	MDRV_VIDEO_START(decocass)
	MDRV_VIDEO_UPDATE(decocass)

	/* sound hardware */
	MDRV_SOUND_ADD(AY8910, ay8910_interface)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ctsttape )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(ctsttape)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( clocknch )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(clocknch)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ctisland )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(ctisland)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( csuperas )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(csuperas)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( castfant )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(castfant)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cluckypo )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cluckypo)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cterrani )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cterrani)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cexplore )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cexplore)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cprogolf )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cprogolf)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cmissnx )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cmissnx)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cdiscon1 )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cdiscon1)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cptennis )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cptennis)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( ctornado )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(ctornado)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cbnj )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cbnj)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cburnrub )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cburnrub)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cbtime )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cbtime)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cgraplop )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cgraplop)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( clapapa )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(clapapa)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cfghtice )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cfghtice)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cprobowl )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cprobowl)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cnightst )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cnightst)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cprosocc )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cprosocc)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cppicf )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cppicf)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cbdash )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cbdash)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( cscrtry )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(decocass)
	MDRV_MACHINE_INIT(cscrtry)
MACHINE_DRIVER_END



#define DECOCASS_COMMON_ROMS	\
	ROM_REGION( 2*0x10000, REGION_CPU1, 0 ) /* 64k for code + 64k for decrypted opcodes */ \
	ROM_LOAD( "rms8.cpu",     0xf000, 0x1000, CRC(23d929b7) SHA1(063f83020ba3d6f43ab8471f95ca919767b93aa4) ) \
/* the following two are just about the same stuff as the one above */ \
/*	ROM_LOAD( "dsp3.p0b",     0xf000, 0x0800, CRC(b67a91d9) ) */ \
/*	ROM_LOAD( "dsp3.p1b",     0xf800, 0x0800, CRC(3bfff5f3) ) */ \
\
	ROM_REGION( 0x10000, REGION_CPU2, 0 )	  /* 64k for the audio CPU */ \
	ROM_LOAD( "rms8.snd",     0xf800, 0x0800, CRC(b66b2c2a) SHA1(0097f38beb4872e735e560148052e258a26b08fd) ) \
\
	ROM_REGION( 0x01000, REGION_CPU3, 0 )	  /* 4k for the MCU (actually 1K ROM + 64 bytes RAM @ 0x800) */ \
	ROM_LOAD( "cass8041.bin", 0x0000, 0x0400, CRC(a6df18fd) SHA1(1f9ea47e372d31767c936c15852b43df2b0ee8ff) ) \
\
	ROM_REGION( 0x00060, REGION_PROMS, 0 )	  /* PROMS */ \
	ROM_LOAD( "dsp8.3m",      0x0000, 0x0020, CRC(238fdb40) SHA1(b88e8fabb82092105c3828154608ea067acbf2e5) ) \
	ROM_LOAD( "dsp8.10d",     0x0020, 0x0020, CRC(3b5836b4) SHA1(b630bb277d9ec09d46ef26b944014dd6165b35d8) ) \
	ROM_LOAD( "rms8.j3",      0x0040, 0x0020, CRC(51eef657) SHA1(eaedce5caf55624ad6ae706aedf82c5717c60f1f) ) /* DRAM banking and timing */ \


ROM_START( decocass )
	DECOCASS_COMMON_ROMS

ROM_END

/* The Following use Dongle Type 1 (DE-0061)
    (dongle data same for each game)		 */

ROM_START( ctsttape )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "testtape.cas", 0x0000, 0x2000, CRC(4f9d8efb) SHA1(5b77747dad1033e5703f06c0870441b54b4256c5) )
ROM_END

ROM_START( clocknch )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "clocknch.cas", 0x0000, 0x8000, CRC(c9d163a4) SHA1(3ef55a8d8f603059e263776c08eb81f2cf18b75c) )
ROM_END

ROM_START( ctisland )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "ctisland.cas", 0x0000, 0x8000, CRC(3f63b8f8) SHA1(2fd0679ef9750a228ebb098672ab6091fda75804) )
ROM_END

ROM_START( ctislnd2 )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "ctislnd3.cas", 0x0000, 0x8000, CRC(2854b4c0) SHA1(d3b4e0031dbb2340fbbe396a1ff9b8fbfd63663e) )
ROM_END

ROM_START( ctislnd3 )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "ctislnd2.cas", 0x0000, 0x8000, CRC(45464e1e) SHA1(03275694d963c7ab0e0f5525e248e69da5f9b591) )
ROM_END

ROM_START( csuperas )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "csuperas.cas", 0x0000, 0x8000, CRC(fabcd07f) SHA1(4070c668ad6725f0710cf7fe6df0d5f80272a449) )
ROM_END

ROM_START( castfant )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "castfant.cas", 0x0000, 0x8000, CRC(6d77d1b5) SHA1(821bd65fbe887cbeac9281a2ad3f88595918f886) )
ROM_END

ROM_START( cluckypo )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cluckypo.cas", 0x0000, 0x8000, CRC(2070c243) SHA1(cd3af309af8eb27937756c1fe6fd0504be5aaaf5) )
ROM_END

ROM_START( cterrani )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cterrani.cas", 0x0000, 0x8000, CRC(eb71adbc) SHA1(67becfde39c034d4b8edc2eb100050de102773da) )
ROM_END

ROM_START( cexplore )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cexplore.cas", 0x0000, 0x8000, CRC(fae49c66) SHA1(4ae69e2f706fdf30204f0aa1277619395cacc21b) )
ROM_END

ROM_START( cprogolf )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00020, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "de-0061.pro", 0x0000, 0x0020, CRC(e09ae5de) SHA1(7dec067d0739a6dad2607132641b66880a5b7751) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cprogolf.cas", 0x0000, 0x8000, CRC(02123cd1) SHA1(e4c630ed293725f23d539cb43beb97953558dabd) )
ROM_END

/* The Following use Dongle Type 2 (CS82-007)
    (dongle data differs for each game)		 */

ROM_START( cmissnx )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00800, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cmissnx.pro",  0x0000, 0x0800, CRC(8a41c071) SHA1(7b16d933707bf21d25dcd11db6a6c28834b11c5b) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cmissnx.cas",  0x0000, 0x8000, CRC(3a094e11) SHA1(c355fe14838187cbde19a799e5c60083c82615ac) )
ROM_END

ROM_START( cdiscon1 )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00800, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cdiscon1.pro", 0x0000, 0x0800, CRC(0f793fab) SHA1(331f1b1b482fcd10f42c388a503f9af62d705401) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cdiscon1.cas", 0x0000, 0x8000, CRC(1429a397) SHA1(12f9e03fcda31dc6161a39bf5c3315a1e9e94565) )
ROM_END

ROM_START( csweetht )
 DECOCASS_COMMON_ROMS

 ROM_REGION( 0x00800, REGION_USER1, 0 )   /* dongle data */
 ROM_LOAD( "cdiscon1.pro", 0x0000, 0x0800, CRC(0f793fab) SHA1(331f1b1b482fcd10f42c388a503f9af62d705401) )

 ROM_REGION( 0x10000, REGION_USER2, 0 )   /* (max) 64k for cassette image */
 ROM_LOAD( "csweetht.cas", 0x0000, 0x8000, CRC(175ef706) SHA1(49b86233f69d0daf54a6e59b86e69b8159e8f6cc) )
ROM_END

ROM_START( cptennis )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00800, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cptennis.pro", 0x0000, 0x0800, CRC(59b8cede) SHA1(514861a652b5256a11477fc357bc01dfd87f712b) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cptennis.cas", 0x0000, 0x8000, CRC(6bb257fe) SHA1(7554bf1996bc9e9c04a276aab050708d70103f54) )
ROM_END

ROM_START( ctornado )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x00800, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "ctornado.pro", 0x0000, 0x0800, CRC(c9a91697) SHA1(3f7163291edbdf1a596e3cd2b7a16bbb140ffb36) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "ctornado.cas", 0x0000, 0x8000, CRC(e4e36ce0) SHA1(48a11823121fb2e3de31ae08e453c0124fc4f7f3) )
ROM_END

/* The Following use Dongle Type 3 (unknown part number?)
    (dongle data differs for each game)		 */

ROM_START( cburnrub )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cburnrub.pro",   0x0000, 0x1000, CRC(9f396832) SHA1(0e302fd094474ac792882948a018c73ce76e0759) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cburnrub.cas",   0x0000, 0x8000, CRC(4528ac22) SHA1(dc0fcc5e5fd21c1c858a90f43c175e36a24b3c3d) )
ROM_END

ROM_START( cburnrb2 )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cburnrub.pro",   0x0000, 0x1000, CRC(9f396832) SHA1(0e302fd094474ac792882948a018c73ce76e0759) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cburnrb2.cas",   0x0000, 0x8000, CRC(84a9ed66) SHA1(a9c536e46b89fc6b9c6271776292fed1241d2f3f) )
ROM_END

ROM_START( cbnj )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cburnrub.pro",   0x0000, 0x1000, CRC(9f396832) SHA1(0e302fd094474ac792882948a018c73ce76e0759) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cbnj.cas",       0x0000, 0x8000, CRC(eed41560) SHA1(85d5df76efac33cd10427f659c4259afabb3daaf) )
ROM_END

ROM_START( cbtime )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cbtime.pro",   0x0000, 0x1000, CRC(25bec0f0) SHA1(9fb1f9699f37937421e26d4fb8fdbcd21a5ddc5c) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cbtime.cas",   0x0000, 0x8000, CRC(56d7dc58) SHA1(34b2513c9ca7ab40f532b6d6d911aa3012113632) )
ROM_END

ROM_START( cgraplop )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cgraplop.pro", 0x0000, 0x1000, CRC(ee93787d) SHA1(0c753d62fdce2fdbd5b329a5aa259a967d07a651) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cgraplop.cas", 0x0000, 0x8000, CRC(d2c1c1bb) SHA1(db67304caa11540363735e7d4bf03507ccbe9980) )
ROM_END

ROM_START( cgraplp2 )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cgraplop.pro", 0x0000, 0x1000, CRC(ee93787d) SHA1(0c753d62fdce2fdbd5b329a5aa259a967d07a651) ) /* is this right for this set? */

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cgraplp2.cas", 0x0000, 0x8000, CRC(2e728981) SHA1(83ba90d95858d647315a1c311b8643672afea5f7) )
ROM_END

ROM_START( clapapa )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "clapapa.pro",  0x0000, 0x1000, CRC(e172819a) SHA1(3492775f4f0a0b31ce5a1a998076829b3f264e98) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "clapapa.cas",  0x0000, 0x8000, CRC(4ffbac24) SHA1(1ec0d7ac1886d4b430dc12be27f387e9d952d235) )
ROM_END

ROM_START( clapapa2 )
 DECOCASS_COMMON_ROMS

 ROM_REGION( 0x01000, REGION_USER1, 0 )   /* dongle data */
 ROM_LOAD( "clapapa.pro",  0x0000, 0x1000, CRC(e172819a) SHA1(3492775f4f0a0b31ce5a1a998076829b3f264e98) )

 ROM_REGION( 0x10000, REGION_USER2, 0 )   /* (max) 64k for cassette image */
 ROM_LOAD( "clapapa2.cas",  0x0000, 0x8000, CRC(069dd3c4) SHA1(5a19392c7ac5aea979187c96267e73bf5126307e) )
ROM_END

ROM_START( cfghtice )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cfghtice.pro", 0x0000, 0x1000, CRC(5abd27b5) SHA1(2ab1c171adffd491759036d6ce2433706654aad2) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cfghtice.cas", 0x0000, 0x10000, CRC(906dd7fb) SHA1(894a7970d5476ed035edd15656e5cf10d6ddcf57) )
ROM_END

ROM_START( cprobowl )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cprobowl.pro", 0x0000, 0x1000, CRC(e3a88e60) SHA1(e6e9a2e5ab26e0463c63201a15f7d5a429ec836e) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cprobowl.cas", 0x0000, 0x8000, CRC(cb86c5e1) SHA1(66c467418cff2ed6d7c121a8b1650ee97ae48fe9) )
ROM_END

ROM_START( cnightst )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cnightst.pro", 0x0000, 0x1000, CRC(553b0fbc) SHA1(2cdf4560992b62e59b6de760d7996be4ed25f505) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cnightst.cas", 0x0000, 0x8000, CRC(c6f844cb) SHA1(5fc6154c20ee4e2f4049a78df6f3cacbb96b0dc0) )
ROM_END

ROM_START( cnights2 )
 DECOCASS_COMMON_ROMS

 ROM_REGION( 0x01000, REGION_USER1, 0 )   /* dongle data */
 ROM_LOAD( "cnightst.pro", 0x0000, 0x1000, CRC(553b0fbc) SHA1(2cdf4560992b62e59b6de760d7996be4ed25f505) )

 ROM_REGION( 0x10000, REGION_USER2, 0 )   /* (max) 64k for cassette image */
 ROM_LOAD( "cnights2.cas", 0x0000, 0x8000, CRC(1a28128c) SHA1(4b620a1919d02814f734aba995115c09dc2db930) )
ROM_END

ROM_START( cprosocc )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cprosocc.pro", 0x0000, 0x1000,  CRC(919fabb2) SHA1(3d6a0676cea7b0be0fe69d06e04ca08c36b2851a) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cprosocc.cas", 0x0000, 0x10000, CRC(76b1ad2c) SHA1(6188667e5bc001dfdf83deaf7251eae794de4702) )
ROM_END

ROM_START( cppicf )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x01000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cppicf.pro",   0x0000, 0x1000, CRC(0b1a1ecb) SHA1(2106da6837c78812c102b0eaaa1127fcc21ea780) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cppicf.cas",   0x0000, 0x8000, CRC(8c02f160) SHA1(03430dd8d4b2e6ca931986dac4d39be6965ffa6f) )
ROM_END

ROM_START( cppicf2 )
 DECOCASS_COMMON_ROMS

 ROM_REGION( 0x01000, REGION_USER1, 0 )   /* dongle data */
 ROM_LOAD( "cppicf.pro",   0x0000, 0x1000, CRC(0b1a1ecb) SHA1(2106da6837c78812c102b0eaaa1127fcc21ea780) )

 ROM_REGION( 0x10000, REGION_USER2, 0 )   /* (max) 64k for cassette image */
 ROM_LOAD( "cppicf2.cas",   0x0000, 0x8000, CRC(78ffa1bc) SHA1(d15f2a240ae7b45885d32b5f507243f82e820d4b) )
ROM_END

/* The Following use Dongle Type 4 (unknown part number?)
    (dongle data probably differs for each game, but only one is known using it atm) */

ROM_START( cscrtry )
	DECOCASS_COMMON_ROMS

	ROM_REGION( 0x08000, REGION_USER1, 0 )	  /* dongle data */
	ROM_LOAD( "cscrtry.pro",  0x0000, 0x8000, CRC(7bc3460b) SHA1(7c5668ff9a5073e27f4a83b02d79892eb4df6b92) )

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cscrtry.cas",  0x0000, 0x8000, CRC(5625f0ca) SHA1(f4b0a6f2ca908880386838f06b626479b4b74134) )
ROM_END

ROM_START( cscrtry2 )
 DECOCASS_COMMON_ROMS

 ROM_REGION( 0x08000, REGION_USER1, 0 )   /* dongle data */
 ROM_LOAD( "cscrtry.pro",  0x0000, 0x8000, CRC(7bc3460b) SHA1(7c5668ff9a5073e27f4a83b02d79892eb4df6b92) )

 ROM_REGION( 0x10000, REGION_USER2, 0 )   /* (max) 64k for cassette image */
 ROM_LOAD( "cscrtry2.cas",  0x0000, 0x8000, CRC(04597842) SHA1(7f1fc3e06b61df880debe9056bdfbbb8600af739) )
ROM_END

/* The Following use Dongle Type 5 (unknown part number?)
    (dongle data not read)		 */

ROM_START( cbdash )
	DECOCASS_COMMON_ROMS

/*	ROM_REGION( 0x01000, REGION_USER1, 0 ) */ /* (max) 4k for dongle data */
	/* no proms */

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cbdash.cas",   0x0000, 0x8000, CRC(cba4c1af) SHA1(5d163d8e31c58b20679c6be06b1aa02df621822b) )
ROM_END

/* The Following have unknown Dongles
    (dongle data not read)		 */

ROM_START( chwy )
	DECOCASS_COMMON_ROMS

	/* no dumped dongle data, type1? its an early game if its highway chase */

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "chwy.cas",   0x0000, 0x8000, CRC(68a48064) SHA1(7e389737972fd0c54f398d296159c561f5ec3a93) )
ROM_END

ROM_START( cflyball )
	DECOCASS_COMMON_ROMS

	/* no dumped dongle data */

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "cflyball.cas",   0x0000, 0x10000, CRC(cb40d043) SHA1(57698bac7e0d552167efa99d08116bf19a3b29c9) )
ROM_END

ROM_START( czeroize )
	DECOCASS_COMMON_ROMS

	/* no dumped dongle data */

	ROM_REGION( 0x10000, REGION_USER2, 0 )	  /* (max) 64k for cassette image */
	ROM_LOAD( "czeroize.cas",   0x0000, 0x10000, CRC(3ef0a406) SHA1(645b34cd477e0bb5539c8fe937a7a2dbd8369003) )
ROM_END


static DRIVER_INIT( decocass )
{
	int A;
	unsigned char *rom = memory_region(REGION_CPU1);
	int diff = memory_region_length(REGION_CPU1) / 2;

	memory_set_opcode_base(0,rom+diff);

	/* Swap bits 5 & 6 for opcodes */
	for (A = 0;A < diff;A++)
		rom[A+diff] = swap_bits_5_6(rom[A]);
}

GAMEX( 1981, decocass, 0,		 decocass, decocass, decocass, ROT270, "DECO", "Cassette System", NOT_A_DRIVER )
GAME ( 1981, ctsttape, decocass, ctsttape, decocass, decocass, ROT270, "DECO", "Cassette - Test Tape" )
GAME ( 1981, clocknch, decocass, clocknch, decocass, decocass, ROT270, "DECO", "Cassette - Lock'n'Chase" )
GAMEX( 1981, ctisland, decocass, ctisland, decocass, decocass, ROT270, "DECO", "Cassette - Treasure Island (set 1)", GAME_IMPERFECT_GRAPHICS )
GAMEX( 1981, ctislnd2, ctisland, ctisland, decocass, decocass, ROT270, "DECO", "Cassette - Treasure Island (set 2)", GAME_IMPERFECT_GRAPHICS )
GAMEX( 1981, ctislnd3, ctisland, ctisland, decocass, decocass, ROT270, "DECO", "Cassette - Treasure Island (set 3)", GAME_IMPERFECT_GRAPHICS | GAME_NOT_WORKING ) /* Different Bitswap? */
GAME ( 1981, csuperas, decocass, csuperas, decocass, decocass, ROT270, "DECO", "Cassette - Super Astro Fighter" )
GAME ( 1981, castfant, decocass, castfant, decocass, decocass, ROT270, "DECO", "Cassette - Astro Fantasia" )
GAME ( 1981, cluckypo, decocass, cluckypo, decocass, decocass, ROT270, "DECO", "Cassette - Lucky Poker" )
GAME ( 1981, cterrani, decocass, cterrani, decocass, decocass, ROT270, "DECO", "Cassette - Terranean" )
GAMEX( 1982, cexplore, decocass, cexplore, decocass, decocass, ROT270, "DECO", "Cassette - Explorer", GAME_NOT_WORKING )
GAME ( 1981, cprogolf, decocass, cprogolf, decocass, decocass, ROT270, "DECO", "Cassette - Pro Golf" )
GAME ( 1982, cmissnx,  decocass, cmissnx,  decocass, decocass, ROT270, "DECO", "Cassette - Mission-X" )
GAME ( 1982, cdiscon1, decocass, cdiscon1, decocass, decocass, ROT270, "DECO", "Cassette - Disco No.1" )
GAME ( 1982, csweetht, cdiscon1, cdiscon1, decocass, decocass, ROT270, "DECO", "Cassette - Sweet Heart" )
GAME ( 1982, cptennis, decocass, cptennis, decocass, decocass, ROT270, "DECO", "Cassette - Pro Tennis" )
GAME ( 1982, ctornado, decocass, ctornado, decocass, decocass, ROT270, "DECO", "Cassette - Tornado" )
GAME ( 1982, cburnrub, decocass, cburnrub, decocass, decocass, ROT270, "DECO", "Cassette - Burnin' Rubber (set 1)" )
GAME ( 1982, cburnrb2, cburnrub, cburnrub, decocass, decocass, ROT270, "DECO", "Cassette - Burnin' Rubber (set 2)" )
GAME ( 1982, cbnj,	   cburnrub, cbnj,	   decocass, decocass, ROT270, "DECO", "Cassette - Bump N Jump" )
GAME ( 1983, cbtime,   decocass, cbtime,   decocass, decocass, ROT270, "DECO", "Cassette - Burger Time" )
GAME ( 1983, cgraplop, decocass, cgraplop, decocass, decocass, ROT270, "DECO", "Cassette - Graplop (aka Cluster Buster) (set 1)" )
GAMEX( 1983, cgraplp2, cgraplop, cgraplop, decocass, decocass, ROT270, "DECO", "Cassette - Graplop (aka Cluster Buster) (set 2)", GAME_NOT_WORKING ) /* Different Protection / Bitswap? */
GAME ( 1983, clapapa,  decocass, clapapa,  decocass, decocass, ROT270, "DECO", "Cassette - Rootin' Tootin' (aka La.Pa.Pa)" ) /* Displays 'LaPaPa during attract */
GAME ( 1983, clapapa2, clapapa,  clapapa,  decocass, decocass, ROT270, "DECO", "Cassette - Rootin' Tootin'" )				/* Displays 'Rootin' Tootin' during attract */
GAME ( 1984, cfghtice, decocass, cfghtice, decocass, decocass, ROT270, "DECO", "Cassette - Fighting Ice Hockey" )
GAME ( 1983, cprobowl, decocass, cprobowl, decocass, decocass, ROT270, "DECO", "Cassette - Pro Bowling" )
GAME ( 1983, cnightst, decocass, cnightst, decocass, decocass, ROT270, "DECO", "Cassette - Night Star (set 1)" )
GAME ( 1983, cnights2, cnightst, cnightst, decocass, decocass, ROT270, "DECO", "Cassette - Night Star (set 2)" )
GAME ( 1983, cprosocc, decocass, cprosocc, decocass, decocass, ROT270, "DECO", "Cassette - Pro Soccer" )
GAME ( 1984, cppicf,   decocass, cppicf,   decocass, decocass, ROT270, "DECO", "Cassette - Peter Pepper's Ice Cream Factory (set 1)" )
GAME ( 1984, cppicf2,  cppicf,   cppicf,   decocass, decocass, ROT270, "DECO", "Cassette - Peter Pepper's Ice Cream Factory (set 2)" )
GAME ( 1984, cscrtry,  decocass, cscrtry,  decocass, decocass, ROT270, "DECO", "Cassette - Scrum Try (set 1)" )
GAME ( 1984, cscrtry2, cscrtry,  cscrtry,  decocass, decocass, ROT270, "DECO", "Cassette - Scrum Try (set 2)" )
GAME ( 1985, cbdash,   decocass, cbdash,   decocass, decocass, ROT270, "DECO", "Cassette - Boulder Dash" )

/* The following may be missing dongle data if they're not Type 1 */
GAMEX( 1985, chwy,     decocass, decocass,   decocass, decocass, ROT270, "DECO", "Cassette - Highway Chase[Q]", GAME_NOT_WORKING )
GAMEX( 1985, cflyball, decocass, decocass,   decocass, decocass, ROT270, "DECO", "Cassette - Flying Ball[Q]", GAME_NOT_WORKING )
GAMEX( 1985, czeroize, decocass, decocass,   decocass, decocass, ROT270, "DECO", "Cassette - Zeroize[Q]", GAME_NOT_WORKING )
