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

    Taito Qix hardware

    driver by John Butler, Ed Mueller, Aaron Giles

    Games supported:
        * Qix (3 sets)
        * Qix II Tournament
        * Zookeeper (3 sets)
        * Space Dungeon
        * Kram (3 sets, one encrypted)
        * The Electric Yo-Yo (2 sets)
        * Slither (2 sets)
        * Complex X

    Known bugs:
        * none at this time

    Notes:
        * the encrypted version of Kram doesn't have the protection MCU
        * it's not clear what the 16R4 PAL does.
        * Electric Yo-Yo was hanging in attract mode because of a synchronization issue.
          This was fixed by increasing the interleave to 20.
          The reason for the hang was that CPU #2 was reading location $8013 of shared
          RAM after clearing it and before CPU #1 had put the correct value in it.

    TODO:
        * The Kram encryption algorithm is not understood. I merely provide tables to
          decrypt it, derived by comparison with the not encrypted versions.
        * I applied the interleave change only to elecyoyo because these games are
          really sensitive to timing, and kram's service mode was disturbed by it (the
          high score and audit pages were broken).

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

    Memory map

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

Video CPU:
----------
All but Zookeeper:

Address          Dir Data     Name        Description
---------------- --- -------- ----------- -----------------------
100000xxxxxxxxxx R/W xxxxxxxx DS0         dual port RAM (shared with video CPU)
100001xxxxxxxxxx R/W xxxxxxxx             local RAM
100010---------x R/W xxxxxxxx DS2         6850 ACIA [1]
100011---------0 R/W -------- DS3         assert FIRQ on video CPU
100011---------1 R/W -------- DS3         FIRQ acknowledge
100100--------xx R/W xxxxxxxx DS4/U20     6821 PIA (sound control / data IRQ)
100101--------xx R/W xxxxxxxx DS5/U11     6821 PIA (coin / player 1 inputs)
100110-1------xx R/W xxxxxxxx DS6/U20     6821 PIA (spare / player 2 inputs)
100110xxxxxxxx-- R/W ----xxxx DS6/U24     PAL 16R4 (purpose unclear)
100111--------xx R/W xxxxxxxx DS7/U30     6821 PIA (player 2 inputs / coin control)
101xxxxxxxxxxxxx R   xxxxxxxx             program ROM
11xxxxxxxxxxxxxx R   xxxxxxxx             program ROM

Zookeeper is almost the same, just the top bit of the address is inverted most of
the time to make space for more ROM.

Address          Dir Data     Name        Description
---------------- --- -------- ----------- -----------------------
000000xxxxxxxxxx R/W xxxxxxxx DS0         dual port RAM (shared with video CPU)
000001xxxxxxxxxx R/W xxxxxxxx             local RAM
000010---------x R/W xxxxxxxx DS2         6850 ACIA [1]
000011---------0 R/W -------- DS3         assert FIRQ on video CPU
000011---------1 R/W -------- DS3         FIRQ acknowledge
000100--------xx R/W xxxxxxxx DS4/U20     6821 PIA (sound control / data IRQ)
000101--------xx R/W xxxxxxxx DS5/U11     6821 PIA (coin / player 1 inputs)
000110-1------xx R/W xxxxxxxx DS6/U20     6821 PIA (spare / player 2 inputs)
100110xxxxxxxx-- R/W ----xxxx DS6/U24     PAL 16R4 (purpose unclear)
000111--------xx R/W xxxxxxxx DS7/U30     6821 PIA (player 2 inputs / coin control)
1xxxxxxxxxxxxxxx R   xxxxxxxx             program ROM

[1] Diagnostic purposes only, not used

Interrupts:
    NMI not connected
    IRQ generated by pia_3
    FIRQ generated by CPU #2


Video CPU:
----------

Address          Dir Data     Name        Description
---------------- --- -------- ----------- -----------------------
0xxxxxxxxxxxxxxx R/W xxxxxxxx             direct video RAM access
100000xxxxxxxxxx R/W xxxxxxxx VS0         dual port RAM (shared with data CPU)
100001xxxxxxxxxx R/W xxxxxxxx VS1         CMOS NVRAM
100010----------   W xxxxxx-- VS2         self test LEDs      [1]
100010----------   W ------xx VS2         palette bank select [1]
100011---------0 R/W -------- VS3         assert FIRQ on data CPU
100011---------1 R/W -------- VS3         FIRQ acknowledge
100100xxxxxxxxxx R/W xxxxxxxx VS4         palette RAM (RRGGBBII)
100101--------00 R/W xxxxxxxx VS5         video RAM access at latched address
100101--------01 R/W xxxxxxxx             video RAM access mask [2]
100101--------1x   W xxxxxxxx VS5         video RAM address latch
100110---------- R   xxxxxxxx VS6         current scanline
100111---------x R/W xxxxxxxx VS7         68A45 video controller
11xxxxxxxxxxxxxx R   xxxxxxxx             program ROMs

Zookeeper has some more ROMs (banked):
100010--------01   W -----x--             ROM bank select [1]
101xxxxxxxxxxxxx R   xxxxxxxx             banked program ROMs

[1] The Zookeeper extension is handled in the ROM expansion board, without
    changes to the main board. This means that the ROM bank select address is
    also a mirror for the LEDs/palette bank latch. That's why they used bit 2,
    this way they could copy the palette bank in the low two bits when changing
    the ROM bank and avoid problems.
[2] Slither only. This hardware feature is NOT present in the Taito games.

Interrupts:
    NMI not connected
    IRQ not connected
    FIRQ generated by CPU #1


Sound CPU:
----------
Slither doesn't have the third CPU and has different sound hardware.

Address          Dir Data     Name        Description
---------------- --- -------- ----------- -----------------------
000000000xxxxxxx R/W xxxxxxxx             6802 internal RAM
0-1-----------xx R/W xxxxxxxx U7          6821 PIA (TMS5200 control) [2]
01------------xx R/W xxxxxxxx U8          6821 PIA (DAC, communication with data CPU)
1100------------                          n.c.
1101xxxxxxxxxxxx R   xxxxxxxx U25         program ROM [1]
1110xxxxxxxxxxxx R   xxxxxxxx U26         program ROM [1]
1111xxxxxxxxxxxx R   xxxxxxxx U27         program ROM [1]

[1] In older games (qix, kram, elecyoyo) ROMs are half size and mapped at E800-FFFF
[2] Not used by any game

Interrupts:
    NMI not connected
    IRQ generated by pia_4

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

    Qix uses two 6809 CPUs: one for data and sound and the other for
    video. Communication between the two CPUs is done using a 4K RAM
    space at $8000 (for ZooKeeper the data cpu maps it at $0000 and the
    video cpu at $8000) which both CPUs have direct access. FIRQs (fast
    interrupts) are generated by each CPU to interrupt the other at
    specific times.

    A third CPU, a 6802, is used for sample playback. It drives an 8-bit
    DAC and according to the schematics a TMS5220 speech chip, which is
    never accessed. ROM u27 is the only code needed. A sound command from
    the data CPU causes an IRQ to fire on the 6802 and the sound playback
    is started.

    The coin door switches and player controls are connected to the CPUs
    by Mototola 6821 PIAs. These devices are memory mapped as shown below.

    The screen is 256x256 with eight bit pixels (64K). The screen is
    divided into two halves each half mapped by the video CPU at
    $0000-$7FFF. The high order bit of the address latch at $9402
    specifies which half of the screen is being accessed.

    Timing is critical in the hardware. Communications between the data,
    video, and sound CPUs are all very sensitive.

    The address latch works as follows. When the video CPU accesses $9400,
    the screen address is computed by using the values at $9402 (high byte)
    and $9403 (low byte) to get a value between $0000-$FFFF. The value at
    that location is either returned or written.

    The scan line at $9800 on the video CPU records where the scan line is
    on the display (0-255). Several places in the ROM code wait until the
    scan line reaches zero before continuing.

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

    QIX NONVOLATILE CMOS MEMORY MAP (CPU #2 -- Video) $8400-$87ff
        $86A9 - $86AA:  When CMOS is valid, these bytes are $55AA
        $86AC - $86C3:  AUDIT TOTALS -- 4 4-bit BCD digits per setting
                        (All totals default to: 0000)
                        $86AC: TOTAL PAID CREDITS
                        $86AE: LEFT COINS
                        $86B0: CENTER COINS
                        $86B2: RIGHT COINS
                        $86B4: PAID CREDITS
                        $86B6: AWARDED CREDITS
                        $86B8: % FREE PLAYS
                        $86BA: MINUTES PLAYED
                        $86BC: MINUTES AWARDED
                        $86BE: % FREE TIME
                        $86C0: AVG. GAME [SEC]
                        $86C2: HIGH SCORES
        $86C4 - $86FF:  High scores -- 10 scores/names, consecutive in memory
                        Six 4-bit BCD digits followed by 3 ascii bytes
                        (Default: 030000 QIX)
        $8700        :  LANGUAGE SELECT (Default: $32)
                        ENGLISH = $32  FRANCAIS = $33  ESPANOL = $34  DEUTSCH = $35
        $87D9 - $87DF:  COIN SLOT PROGRAMMING -- 2 4-bit BCD digits per setting
                        $87D9: STANDARD COINAGE SETTING  (Default: 01)
                        $87DA: COIN MULTIPLIERS LEFT (Default: 01)
                        $87DB: COIN MULTIPLIERS CENTER (Default: 04)
                        $87DC: COIN MULTIPLIERS RIGHT (Default: 01)
                        $87DD: COIN UNITS FOR CREDIT (Default: 01)
                        $87DE: COIN UNITS FOR BONUS (Default: 00)
                        $87DF: MINIMUM COINS (Default: 00)
        $87E0 - $87EA:  LOCATION PROGRAMMING -- 2 4-bit BCD digits per setting
                        $87E0: BACKUP HSTD [0000] (Default: 03)
                        $87E1: MAXIMUM CREDITS (Default: 10)
                        $87E2: NUMBER OF TURNS (Default: 03)
                        $87E3: THRESHOLD (Default: 75)
                        $87E4: TIME LINE (Default: 37)
                        $87E5: DIFFICULTY 1 (Default: 01)
                        $87E6: DIFFICULTY 2 (Default: 01)
                        $87E7: DIFFICULTY 3 (Default: 01)
                        $87E8: DIFFICULTY 4 (Default: 01)
                        $87E9: ATTRACT SOUND (Default: 01)
                        $87EA: TABLE MODE (Default: 00)

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

#include "driver.h"
#include "qix.h"
#include "machine/6821pia.h"
#include "sound/sn76496.h"
#include "sound/discrete.h"


/* Constants */
#define MAIN_CLOCK_OSC		20000000	/* 20 MHz */
#define SLITHER_CLOCK_OSC	21300000	/* 21.3 MHz */
#define SOUND_CLOCK_OSC		7372800		/* 7.3728 MHz */
#define COIN_CLOCK_OSC		4000000		/* 4 MHz */



/*************************************
 *
 *  Data CPU memory handlers
 *
 *************************************/

static ADDRESS_MAP_START( readmem_data, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x8000, 0x83ff) AM_READ(qix_sharedram_r)
	AM_RANGE(0x8400, 0x87ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8800, 0x8800) AM_READ(MRA8_NOP)   /* ACIA */
	AM_RANGE(0x8c00, 0x8c00) AM_READ(qix_video_firq_r)
	AM_RANGE(0x8c01, 0x8c01) AM_READ(qix_data_firq_ack_r)
	AM_RANGE(0x9000, 0x93ff) AM_READ(pia_3_r)
	AM_RANGE(0x9400, 0x97ff) AM_READ(pia_0_r)
	AM_RANGE(0x9900, 0x99ff) AM_READ(pia_1_r)
	AM_RANGE(0x9c00, 0x9fff) AM_READ(pia_2_r)
	AM_RANGE(0xa000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( writemem_data, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x8000, 0x83ff) AM_WRITE(qix_sharedram_w) AM_BASE(&qix_sharedram)
	AM_RANGE(0x8400, 0x87ff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x8c00, 0x8c00) AM_WRITE(qix_video_firq_w)
	AM_RANGE(0x8c01, 0x8c01) AM_WRITE(qix_data_firq_ack_w)
	AM_RANGE(0x9000, 0x93ff) AM_WRITE(pia_3_w)
	AM_RANGE(0x9400, 0x97ff) AM_WRITE(qix_pia_0_w)
	AM_RANGE(0x9900, 0x99ff) AM_WRITE(pia_1_w)
	AM_RANGE(0x9c00, 0x9fff) AM_WRITE(pia_2_w)
	AM_RANGE(0xa000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( zoo_readmem_data, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x03ff) AM_READ(qix_sharedram_r)
	AM_RANGE(0x0400, 0x07ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x0800, 0x0800) AM_READ(MRA8_NOP)   /* ACIA */
	AM_RANGE(0x0c00, 0x0c00) AM_READ(qix_video_firq_r)
	AM_RANGE(0x0c01, 0x0c01) AM_READ(qix_data_firq_ack_r)
	AM_RANGE(0x1000, 0x13ff) AM_READ(pia_3_r)
	AM_RANGE(0x1400, 0x17ff) AM_READ(pia_0_r)
	AM_RANGE(0x1900, 0x19ff) AM_READ(pia_1_r)
	AM_RANGE(0x1c00, 0x1fff) AM_READ(pia_2_r)
	AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( zoo_writemem_data, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x03ff) AM_WRITE(qix_sharedram_w) AM_BASE(&qix_sharedram)
	AM_RANGE(0x0400, 0x07ff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x0c00, 0x0c00) AM_WRITE(qix_video_firq_w)
	AM_RANGE(0x0c01, 0x0c01) AM_WRITE(qix_data_firq_ack_w)
	AM_RANGE(0x1000, 0x13ff) AM_WRITE(pia_3_w)
	AM_RANGE(0x1400, 0x17ff) AM_WRITE(qix_pia_0_w)
	AM_RANGE(0x1900, 0x19ff) AM_WRITE(pia_1_w)
	AM_RANGE(0x1c00, 0x1fff) AM_WRITE(pia_2_w)
	AM_RANGE(0x8000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END



/*************************************
 *
 *  Video CPU memory handlers
 *
 *************************************/

static ADDRESS_MAP_START( readmem_video, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_READ(qix_videoram_r)
	AM_RANGE(0x8000, 0x83ff) AM_READ(qix_sharedram_r)
	AM_RANGE(0x8400, 0x87ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8c00, 0x8c00) AM_READ(qix_data_firq_r)
	AM_RANGE(0x8c01, 0x8c01) AM_READ(qix_video_firq_ack_r)
	AM_RANGE(0x9000, 0x93ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x9400, 0x9400) AM_READ(qix_addresslatch_r)
	AM_RANGE(0x9800, 0x9800) AM_READ(qix_scanline_r)
	AM_RANGE(0xa000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( writemem_video, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_WRITE(qix_videoram_w)
	AM_RANGE(0x8000, 0x83ff) AM_WRITE(qix_sharedram_w)
	AM_RANGE(0x8400, 0x87ff) AM_WRITE(MWA8_RAM) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
	AM_RANGE(0x8800, 0x8800) AM_WRITE(qix_palettebank_w)
	AM_RANGE(0x8c00, 0x8c00) AM_WRITE(qix_data_firq_w)
	AM_RANGE(0x8c01, 0x8c01) AM_WRITE(qix_video_firq_ack_w)
	AM_RANGE(0x9000, 0x93ff) AM_WRITE(qix_paletteram_w) AM_BASE(&paletteram)
	AM_RANGE(0x9400, 0x9400) AM_WRITE(qix_addresslatch_w)
	AM_RANGE(0x9402, 0x9403) AM_WRITE(MWA8_RAM) AM_BASE(&qix_videoaddress)
	AM_RANGE(0x9c00, 0x9fff) AM_WRITE(MWA8_RAM) /* Video controller */
	AM_RANGE(0xa000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( zoo_readmem_video, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_READ(qix_videoram_r)
	AM_RANGE(0x8000, 0x83ff) AM_READ(qix_sharedram_r)
	AM_RANGE(0x8400, 0x87ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8c00, 0x8c00) AM_READ(qix_data_firq_r)
	AM_RANGE(0x8c01, 0x8c01) AM_READ(qix_video_firq_ack_r)
	AM_RANGE(0x9000, 0x93ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x9400, 0x9400) AM_READ(qix_addresslatch_r)
	AM_RANGE(0x9800, 0x9800) AM_READ(qix_scanline_r)
	AM_RANGE(0xa000, 0xbfff) AM_READ(MRA8_BANK1)
	AM_RANGE(0xc000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( zoo_writemem_video, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_WRITE(qix_videoram_w)
	AM_RANGE(0x8000, 0x83ff) AM_WRITE(qix_sharedram_w)
	AM_RANGE(0x8400, 0x87ff) AM_WRITE(MWA8_RAM) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
	AM_RANGE(0x8800, 0x8800) AM_WRITE(qix_palettebank_w)
	AM_RANGE(0x8801, 0x8801) AM_WRITE(zoo_bankswitch_w)
	AM_RANGE(0x8c00, 0x8c00) AM_WRITE(qix_data_firq_w)
	AM_RANGE(0x8c01, 0x8c01) AM_WRITE(qix_video_firq_ack_w)
	AM_RANGE(0x9000, 0x93ff) AM_WRITE(qix_paletteram_w) AM_BASE(&paletteram)
	AM_RANGE(0x9400, 0x9400) AM_WRITE(qix_addresslatch_w)
	AM_RANGE(0x9402, 0x9403) AM_WRITE(MWA8_RAM) AM_BASE(&qix_videoaddress)
	AM_RANGE(0x9c00, 0x9fff) AM_WRITE(MWA8_RAM) /* Video controller */
	AM_RANGE(0xa000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END



/*************************************
 *
 *  Sound CPU memory handlers
 *
 *************************************/

static ADDRESS_MAP_START( readmem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x007f) AM_READ(MRA8_RAM)
	AM_RANGE(0x2000, 0x2003) AM_READ(pia_5_r)
	AM_RANGE(0x4000, 0x4003) AM_READ(pia_4_r)
	AM_RANGE(0xd000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( writemem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x007f) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x2000, 0x2003) AM_WRITE(pia_5_w)
	AM_RANGE(0x4000, 0x4003) AM_WRITE(pia_4_w)
	AM_RANGE(0xd000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END



/*************************************
 *
 *  Coin CPU memory handlers
 *
 *************************************/

static ADDRESS_MAP_START( mcu_readmem, ADDRESS_SPACE_PROGRAM, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(11) )
	AM_RANGE(0x0000, 0x0000) AM_READ(qix_68705_portA_r)
	AM_RANGE(0x0001, 0x0001) AM_READ(qix_68705_portB_r)
	AM_RANGE(0x0002, 0x0002) AM_READ(qix_68705_portC_r)
	AM_RANGE(0x0010, 0x007f) AM_READ(MRA8_RAM)
	AM_RANGE(0x0080, 0x07ff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END


static ADDRESS_MAP_START( mcu_writemem, ADDRESS_SPACE_PROGRAM, 8 )
	ADDRESS_MAP_FLAGS( AMEF_ABITS(11) )
	AM_RANGE(0x0000, 0x0000) AM_WRITE(qix_68705_portA_w) AM_BASE(&qix_68705_port_out)
	AM_RANGE(0x0001, 0x0001) AM_WRITE(qix_68705_portB_w)
	AM_RANGE(0x0002, 0x0002) AM_WRITE(qix_68705_portC_w)
	AM_RANGE(0x0004, 0x0007) AM_WRITE(MWA8_RAM) AM_BASE(&qix_68705_ddr)
	AM_RANGE(0x0010, 0x007f) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x0080, 0x07ff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END



/*************************************
 *
 *  Input port definitions
 *
 *************************************/

#define COIN_PORT \
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME("Test Advance") PORT_CODE(KEYCODE_F1) \
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME("Test Next line") PORT_CODE(KEYCODE_F2) \
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME("Test Slew Up") PORT_CODE(KEYCODE_F5) \
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME("Test Slew Down") PORT_CODE(KEYCODE_F6) \
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 ) \
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN2 ) \
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN3 ) \
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_TILT )


INPUT_PORTS_START( qix )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (PLAYER 2) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
    PORT_BIT( 0x60, IP_ACTIVE_LOW, IPT_UNKNOWN )
    PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
INPUT_PORTS_END


INPUT_PORTS_START( sdungeon )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_UP ) PORT_8WAY
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_RIGHT ) PORT_8WAY
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_DOWN ) PORT_8WAY
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_LEFT ) PORT_8WAY
    PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY
    PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY
    PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY
    PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
    PORT_BIT( 0xfc, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (PLAYER 2) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_UP ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_RIGHT ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_DOWN ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_LEFT ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY PORT_COCKTAIL
INPUT_PORTS_END


INPUT_PORTS_START( elecyoyo )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (PLAYER 2) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
    PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END


INPUT_PORTS_START( kram )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (PLAYER 2) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
    PORT_BIT( 0x60, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
INPUT_PORTS_END


INPUT_PORTS_START( zookeep )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (PLAYER 2) */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
	PORT_BIT( 0x30, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END


INPUT_PORTS_START( slither )
	PORT_START	/* PIA 0 Port A (PLAYER 1) */
    PORT_BIT( 0x0f, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* PIA 0 Port B (COIN) */
	PORT_SERVICE(0x01, IP_ACTIVE_LOW )
    PORT_BIT( 0x0e, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_TILT )

	PORT_START	/* PIA 3 Port A (PLAYER 2) */
    PORT_BIT( 0x0f, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 ) PORT_COCKTAIL
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 ) PORT_COCKTAIL
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL

	PORT_START	/* PIA 1 Port A (TRACKBALL L/R) */
    PORT_BIT( 0xff, 0, IPT_TRACKBALL_X ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10)

	PORT_START	/* PIA 2 Port A (TRACKBALL U/D) */
    PORT_BIT( 0xff, 0, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_REVERSE

	PORT_START	/* PIA 1 Port A (TRACKBALL L/R) */
    PORT_BIT( 0xff, 0, IPT_TRACKBALL_X ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_COCKTAIL

	PORT_START	/* PIA 2 Port A (TRACKBALL U/D) */
    PORT_BIT( 0xff, 0, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_REVERSE PORT_COCKTAIL
INPUT_PORTS_END


INPUT_PORTS_START( complexx )
	PORT_START	/* PIA 0 Port A (Left Stick) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_UP ) PORT_8WAY
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_RIGHT ) PORT_8WAY
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_DOWN ) PORT_8WAY
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_LEFT ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )

/* 0x80 isn't scanned unless the difficulty in the game is below 4. I
decided not to map this button, so if you set the difficulty that low,
you can't fire. If I do map that button, and you set difficulty below 4
and hit this fire button without pressing the second stick in any
direction it fires up. If you're pressing left it fires right, press
right it fires left and press down it fires down. That's just too wacky.
I gotta think it's not supposed to be hooked up at all and if the
difficulty is that low, you just can't shoot, so I think it should stay
as-is. Tim Lindquist 1-17-03 */

	PORT_START	/* PIA 0 Port B (COIN) */
	COIN_PORT

	PORT_START	/* PIA 1 Port A (SPARE) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

    PORT_START	/* PIA 1 Port B (PLAYER 1/2) */
	PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* PIA 2 Port A (Right Stick) */
    PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
    PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
    PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
    PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
    PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY
    PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY
    PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY
    PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY
INPUT_PORTS_END



/*************************************
 *
 *  Machine drivers
 *
 *************************************/

static MACHINE_DRIVER_START( qix )

	/* basic machine hardware */
	MDRV_CPU_ADD_TAG("main", M6809, MAIN_CLOCK_OSC/4/4)	/* 1.25 MHz */
	MDRV_CPU_PROGRAM_MAP(readmem_data,writemem_data)
	MDRV_CPU_VBLANK_INT(qix_vblank_start,1)

	MDRV_CPU_ADD_TAG("video", M6809, MAIN_CLOCK_OSC/4/4)	/* 1.25 MHz */
	MDRV_CPU_PROGRAM_MAP(readmem_video,writemem_video)

	MDRV_CPU_ADD_TAG("sound", M6802, SOUND_CLOCK_OSC/2/4)	/* 0.92 MHz */
	/* audio CPU */
	MDRV_CPU_PROGRAM_MAP(readmem_sound,writemem_sound)

	MDRV_SCREEN_REFRESH_RATE(60)

	MDRV_MACHINE_START(qix)
	MDRV_MACHINE_RESET(qix)
	MDRV_NVRAM_HANDLER(generic_0fill)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(256, 256)
	MDRV_SCREEN_VISIBLE_AREA(0, 255, 8, 247)
	MDRV_PALETTE_LENGTH(1024)

	MDRV_VIDEO_START(qix)
	MDRV_VIDEO_UPDATE(qix)

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_STEREO("left", "right")

	MDRV_SOUND_ADD_TAG("discrete", DISCRETE, 0)
	MDRV_SOUND_CONFIG(qix_discrete_interface)
	MDRV_SOUND_ROUTE(0, "left", 1.0)
	MDRV_SOUND_ROUTE(1, "right", 1.0)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( mcu )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(qix)

	MDRV_CPU_ADD(M68705, COIN_CLOCK_OSC/4)	/* 1.00 MHz */
	MDRV_CPU_PROGRAM_MAP(mcu_readmem,mcu_writemem)

	MDRV_MACHINE_START(qixmcu)
	MDRV_MACHINE_RESET(qixmcu)
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( elecyoyo )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(mcu)

	MDRV_INTERLEAVE(100)	// fixes hang in attract mode
MACHINE_DRIVER_END

static MACHINE_DRIVER_START( zookeep )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(mcu)

	MDRV_CPU_MODIFY("main")
	MDRV_CPU_PROGRAM_MAP(zoo_readmem_data,zoo_writemem_data)

	MDRV_CPU_MODIFY("video")
	MDRV_CPU_PROGRAM_MAP(zoo_readmem_video,zoo_writemem_video)
MACHINE_DRIVER_END


static MACHINE_DRIVER_START( slither )

	/* basic machine hardware */
	MDRV_IMPORT_FROM(qix)

	MDRV_CPU_REPLACE("main", M6809, SLITHER_CLOCK_OSC/4/4)	/* 1.34 MHz */
	MDRV_CPU_REPLACE("video", M6809, SLITHER_CLOCK_OSC/4/4)	/* 1.34 MHz */
	MDRV_CPU_REMOVE("sound")

	MDRV_MACHINE_START(slither)
	MDRV_MACHINE_RESET(slither)

	/* video hardware */
	MDRV_SCREEN_VISIBLE_AREA(0, 255, 0, 255)

	/* sound hardware */
	MDRV_SPEAKER_REMOVE("left")
	MDRV_SPEAKER_REMOVE("right")
	MDRV_SPEAKER_STANDARD_MONO("mono")

	MDRV_SOUND_REPLACE("discrete", SN76496, SLITHER_CLOCK_OSC/4/4)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

	MDRV_SOUND_ADD(SN76496, SLITHER_CLOCK_OSC/4/4)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END



/*************************************
 *
 *  ROM definitions
 *
 *************************************/

ROM_START( qix )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "u12", 0xc000, 0x0800, CRC(aad35508) SHA1(5fa72e00b4373de21e27a86b49a44a9769f769f4) )
	ROM_LOAD( "u13", 0xc800, 0x0800, CRC(46c13504) SHA1(19c084c38b75f14bf5094b317afeecaca6870f7a) )
	ROM_LOAD( "u14", 0xd000, 0x0800, CRC(5115e896) SHA1(8359a1700fff7a38e8ea4f92a4f18bc628cf1cb1) )
	ROM_LOAD( "u15", 0xd800, 0x0800, CRC(ccd52a1b) SHA1(86d134cd769ef12820638b96a4ffedd8b15dffd2) )
	ROM_LOAD( "u16", 0xe000, 0x0800, CRC(cd1c36ee) SHA1(b379b1fe3109947a12c9683cd0c2400c2ee845b3) )
	ROM_LOAD( "u17", 0xe800, 0x0800, CRC(1acb682d) SHA1(a2c60964e8d838d09662f8a670c6da41ba850df9) )
	ROM_LOAD( "u18", 0xf000, 0x0800, CRC(de77728b) SHA1(8e183bb27858aad9a996e4a2e5a95f0145d1f5b4) )
	ROM_LOAD( "u19", 0xf800, 0x0800, CRC(c0994776) SHA1(9452a98c78a038679c4e58f4a9983adb28ea5e78) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "u4",  0xc800, 0x0800, CRC(5b906a09) SHA1(84a2e817d6718e0276fcea702811a91bc054a670) )
	ROM_LOAD( "u5",  0xd000, 0x0800, CRC(254a3587) SHA1(66045c71cc1d04d4e03c728e578f570fbf7c650d) )
	ROM_LOAD( "u6",  0xd800, 0x0800, CRC(ace30389) SHA1(50c6275d13cfbca7750d5a3e725faedba7574e04) )
	ROM_LOAD( "u7",  0xe000, 0x0800, CRC(8ebcfa7c) SHA1(21ccf5e74424ab5470473d1059ee6a43d144f685) )
	ROM_LOAD( "u8",  0xe800, 0x0800, CRC(b8a3c8f9) SHA1(32ba771913ef44b1133ecfaedaae7f96dcc84343) )
	ROM_LOAD( "u9",  0xf000, 0x0800, CRC(26cbcd55) SHA1(2e55e222f850548cd1d461ab5337e98dd817b567) )
	ROM_LOAD( "u10", 0xf800, 0x0800, CRC(568be942) SHA1(8b6a01d983d355a64372fa76af810ab53e09d5df) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "u27", 0xf800, 0x0800, CRC(f3782bd0) SHA1(bfc6d29f9668e02857453e96c005c81568ae931d) )
ROM_END


ROM_START( qixa )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "qu12", 0xc000, 0x0800, CRC(1c55b44d) SHA1(6385e5e484e24cf396c14de86344170639c3cc65) )
	ROM_LOAD( "qu13", 0xc800, 0x0800, CRC(20279e8c) SHA1(722da239636de3fe40318768ddbe687b19afcdb6) )
	ROM_LOAD( "qu14", 0xd000, 0x0800, CRC(bafe3ce3) SHA1(648a54545a1b545c82c0ace5eb1ce17af5ea7391) )
	/* d800-dfff empty */
	ROM_LOAD( "qu16", 0xe000, 0x0800, CRC(db560753) SHA1(4acbe17f1e555f45606ddec197c5ab691ff46d39) )
	ROM_LOAD( "qu17", 0xe800, 0x0800, CRC(8c7aeed8) SHA1(b7da2b0f34f72f9853cdf6ce55e604b09fcf4728) )
	ROM_LOAD( "qu18", 0xf000, 0x0800, CRC(353be980) SHA1(a50e02fcc69771a13b238aa0e8dc3c56b01a58d5) )
	ROM_LOAD( "qu19", 0xf800, 0x0800, CRC(f46a69ca) SHA1(dacb53c0318445da3fbb86f9a45914c5b7a4c4a1) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "qu3",  0xc000, 0x0800, CRC(8b4c0ef0) SHA1(6d18d1052f342e3b3313f2174b20f2a179e2c6bd) )
	ROM_LOAD( "qu4",  0xc800, 0x0800, CRC(66a5c260) SHA1(8cce71bcd3a432650f0d0c94f3a2151ba8154220) )
	ROM_LOAD( "qu5",  0xd000, 0x0800, CRC(70160ea3) SHA1(a411130c5c669a181564369a8921b26e0f0b5450) )
	/* d800-dfff empty */
	ROM_LOAD( "qu7",  0xe000, 0x0800, CRC(d6733019) SHA1(89e9e63c91e044fe1c6ce883e3ec18eec0cb39d3) )
	ROM_LOAD( "qu8",  0xe800, 0x0800, CRC(66870dcc) SHA1(9f926390f5ce86d7c1bf55b75dbfb34119425c46) )
	ROM_LOAD( "qu9",  0xf000, 0x0800, CRC(c99bf94d) SHA1(7b6fa6e1cf0f131909d44694c261b1cc2de65003) )
	ROM_LOAD( "qu10", 0xf800, 0x0800, CRC(88b45037) SHA1(e2e5fefe377def3f784026b921527898af8b83a9) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "u27",  0xf800, 0x0800, CRC(f3782bd0) SHA1(bfc6d29f9668e02857453e96c005c81568ae931d) )
ROM_END


ROM_START( qixb )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "lk14.bin", 0xc000, 0x1000, CRC(6d164986) SHA1(c805abe1a441e10080ceca8ba547835bafb61bcc) )
	ROM_LOAD( "lk15.bin", 0xd000, 0x1000, CRC(16c6ce0f) SHA1(b8091d2db476d2acb4b3f0789e1f155336be9b39) )
	ROM_LOAD( "lk16.bin", 0xe000, 0x1000, CRC(698b1f9c) SHA1(7e7637ca5985f072e821e16f8b65aedb87df136b) )
	ROM_LOAD( "lk17.bin", 0xf000, 0x1000, CRC(7e3adde6) SHA1(dfe66317f87e10919f1ea4b4d565703e73039821) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "lk10.bin", 0xc000, 0x1000, CRC(7eac67d0) SHA1(ca5938422aaa1e380af0afa505876d4682ac69b9) )
	ROM_LOAD( "lk11.bin", 0xd000, 0x1000, CRC(90ccbb6a) SHA1(b65592384597dc2aafc02f49b6b6f477c9112580) )
	ROM_LOAD( "lk12.bin", 0xe000, 0x1000, CRC(be9b9f7d) SHA1(e681bdb9aa8b8c31af1c14e23d0f420577d6db63) )
	ROM_LOAD( "lk13.bin", 0xf000, 0x1000, CRC(51c9853b) SHA1(29a5221f2af866d2ee73110409ecddc2c96404fd) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "u27",      0xf800, 0x0800, CRC(f3782bd0) SHA1(bfc6d29f9668e02857453e96c005c81568ae931d) )
ROM_END


ROM_START( qix2 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "u12.rmb", 0xc000, 0x0800, CRC(484280fd) SHA1(a60c1a278e519721294b2486dc817d248d19c3be) )
	ROM_LOAD( "u13.rmb", 0xc800, 0x0800, CRC(3d089fcb) SHA1(f4f31134c9c15160d2d15cb41296dfec6f2dfe37) )
	ROM_LOAD( "u14.rmb", 0xd000, 0x0800, CRC(362123a9) SHA1(3e2a853f6960f2d5fdcdef8dec8ccf5aad449548) )
	ROM_LOAD( "u15.rmb", 0xd800, 0x0800, CRC(60f3913d) SHA1(a97b658fe2c58b00c2749072828b2e0032894915) )
	ROM_LOAD( "u16.rmb", 0xe000, 0x0800, CRC(cc139e34) SHA1(0ed3e7179b0cbaa31fa91e1ed862b86f5032919a) )
	ROM_LOAD( "u17.rmb", 0xe800, 0x0800, CRC(cf31dc49) SHA1(71c089d827ab61ba69e5e95b7e53220763786df9) )
	ROM_LOAD( "u18.rmb", 0xf000, 0x0800, CRC(1f91ed7a) SHA1(85bb5370a244719663a4f859f66860613aa2b86e) )
	ROM_LOAD( "u19.rmb", 0xf800, 0x0800, CRC(68e8d5a6) SHA1(d09252c393be2fdaf3b9b9f477c79f721d15943f) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "u3.rmb",  0xc000, 0x0800, CRC(19cebaca) SHA1(7d7e79ab0920952cf7618567c9c65397535b6d4f) )
	ROM_LOAD( "u4.rmb",  0xc800, 0x0800, CRC(6cfb4185) SHA1(6545dece8eaeb716877aa6e7b24c21f6e5991451) )
	ROM_LOAD( "u5.rmb",  0xd000, 0x0800, CRC(948f53f3) SHA1(db6eddec8ba41335316d80b6f97e932bf91139af) )
	ROM_LOAD( "u6.rmb",  0xd800, 0x0800, CRC(8630120e) SHA1(14a020fd1bff4acbb034883e33130adda85884e5) )
	ROM_LOAD( "u7.rmb",  0xe000, 0x0800, CRC(bad037c9) SHA1(17218c31895b1547b71d2d9d2b6a93d2e5d73bdd) )
	ROM_LOAD( "u8.rmb",  0xe800, 0x0800, CRC(3159bc00) SHA1(479a69bfe5af48d5ce63978265ce59f79c25749f) )
	ROM_LOAD( "u9.rmb",  0xf000, 0x0800, CRC(e80e9b1d) SHA1(66ef22a26df3f766ae813213473b9ac4b35b01f6) )
	ROM_LOAD( "u10.rmb", 0xf800, 0x0800, CRC(9a55d360) SHA1(fc5f8c853dcc573f6b36dbdd63e5d1edba88bce1) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "u27",     0xf800, 0x0800, CRC(f3782bd0) SHA1(bfc6d29f9668e02857453e96c005c81568ae931d) )
ROM_END


ROM_START( sdungeon )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "sd14.u14", 0xa000, 0x1000, CRC(7024b55a) SHA1(1e21cb2a9cba8c0a3684e137ff78d4b331d86922) )
	ROM_LOAD( "sd15.u15", 0xb000, 0x1000, CRC(a3ac9040) SHA1(f033c21983e87688884180c2336d766a0fa49765) )
	ROM_LOAD( "sd16.u16", 0xc000, 0x1000, CRC(cc20b580) SHA1(53e34405f1f39bce305f199d09d3a32c10c0c616) )
	ROM_LOAD( "sd17.u17", 0xd000, 0x1000, CRC(4663e4b8) SHA1(519b0e730db2047ebe2cce0953eda53e851f8fac) )
	ROM_LOAD( "sd18.u18", 0xe000, 0x1000, CRC(7ef1ffc0) SHA1(eca49a916b6b51b91ed45ff89bb37a67fee7db0e) )
	ROM_LOAD( "sd19.u19", 0xf000, 0x1000, CRC(7b20b7ac) SHA1(554e29adc75cc465ea603a628f9d60d6d903e7ab) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "sd05.u5",  0xa000, 0x1000, CRC(0b2bf48e) SHA1(51bfb35521864f09a20b38aeeb98ab1399d139a5) )
	ROM_LOAD( "sd06.u6",  0xb000, 0x1000, CRC(f86db512) SHA1(7e7ae64db7821f18a5eefdcc7a2e1abc37abd3ac) )
	ROM_LOAD( "sd07.u7",  0xc000, 0x1000, CRC(7b796831) SHA1(cd3d8975e99886f51b27530f0e261f749aadee73) )
	ROM_LOAD( "sd08.u8",  0xd000, 0x1000, CRC(5fbe7068) SHA1(2884909156179b81181b908431de15a7c586f619) )
	ROM_LOAD( "sd09.u9",  0xe000, 0x1000, CRC(89bc51ea) SHA1(57ad4806f0b39af3b3cde91cef16234fc82f21d0) )
	ROM_LOAD( "sd10.u10", 0xf000, 0x1000, CRC(754de734) SHA1(a37b8362a592f5d1c0aeaa525fc003f6060fc12b) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "sd26.u26", 0xf000, 0x0800, CRC(3df8630d) SHA1(5f87c4d49799d424ce36469bf2b36b14c782fcd8) )
	ROM_LOAD( "sd27.u27", 0xf800, 0x0800, CRC(0386f351) SHA1(24ba6aba7c62c313397d743d18093c646f4a6526) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "sd101",    0x0000, 0x0800, CRC(e255af9a) SHA1(2410d3b7dec8e72a93d71c824c9403a6d96b9e8c) )
ROM_END


ROM_START( elecyoyo )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
    ROM_LOAD( "yy14",   0xa000, 0x1000, CRC(0d2edcb9) SHA1(36e1a1aa81111f38e1c06a8174e7de406478cc67) )
    ROM_LOAD( "yy15",   0xb000, 0x1000, CRC(a91f01e3) SHA1(7818299d25a0816b856e83fae02d8019e5e8b4a3) )
    ROM_LOAD( "yy16-1", 0xc000, 0x1000, CRC(2710f360) SHA1(4a6210b07618fba261c38b7bf9a779598dd6bb3c) )
    ROM_LOAD( "yy17",   0xd000, 0x1000, CRC(25fd489d) SHA1(ca7b8d1bcbc223fc0706c8f2e9f02821519b75e4) )
    ROM_LOAD( "yy18",   0xe000, 0x1000, CRC(0b6661c0) SHA1(3e24acbfea1a3b83223d780ea34c83759a751175) )
    ROM_LOAD( "yy19-1", 0xf000, 0x1000, CRC(95b8b244) SHA1(2852dcfc6a638118ee7fe60b957d8aa9a5a8984c) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
    ROM_LOAD( "yy5",    0xa000, 0x1000, CRC(3793fec5) SHA1(d31f3ba6364755c98beb814b5e7d5541e8b4e1a0) )
    ROM_LOAD( "yy6",    0xb000, 0x1000, CRC(2e8b1265) SHA1(6fb67b6a5b627bcbd10c72ac8c9e4d9f4dd7860f) )
    ROM_LOAD( "yy7",    0xc000, 0x1000, CRC(20f93411) SHA1(126c27442a4e35d054a236c41930603241d08ccf) )
    ROM_LOAD( "yy8",    0xd000, 0x1000, CRC(926f90c8) SHA1(dbdfc0e9184a4d9d44d04fdb8fed19b35a8edadc) )
    ROM_LOAD( "yy9",    0xe000, 0x1000, CRC(2f999480) SHA1(582baf285cadf8431ff80f5b63a02fbbefb62e45) )
    ROM_LOAD( "yy10",   0xf000, 0x1000, CRC(b31d20e2) SHA1(e2ba4e6b81a02c3c02353774eb63a72cdfe5f2c3) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
    ROM_LOAD( "yy27",   0xf800, 0x0800, CRC(5a2aa0f3) SHA1(16c7c2db39f33ea3506e07312352ccbfe5528fbd) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "yy101",  0x0000, 0x0800, CRC(3cf13038) SHA1(29c1b309d9046087a50ca78a5f7cba694271af26) )
ROM_END


ROM_START( elecyoy2 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
    ROM_LOAD( "yy14",  0xa000, 0x1000, CRC(0d2edcb9) SHA1(36e1a1aa81111f38e1c06a8174e7de406478cc67) )
    ROM_LOAD( "yy15",  0xb000, 0x1000, CRC(a91f01e3) SHA1(7818299d25a0816b856e83fae02d8019e5e8b4a3) )
    ROM_LOAD( "yy16",  0xc000, 0x1000, CRC(cab19f3a) SHA1(df41649a800b77f046edb6623f65d100f6a8ef5f) )
    ROM_LOAD( "yy17",  0xd000, 0x1000, CRC(25fd489d) SHA1(ca7b8d1bcbc223fc0706c8f2e9f02821519b75e4) )
    ROM_LOAD( "yy18",  0xe000, 0x1000, CRC(0b6661c0) SHA1(3e24acbfea1a3b83223d780ea34c83759a751175) )
    ROM_LOAD( "yy19",  0xf000, 0x1000, CRC(d0215d2e) SHA1(816131bc272252df6cea1b84a42750a71ce4f427) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
    ROM_LOAD( "yy5",   0xa000, 0x1000, CRC(3793fec5) SHA1(d31f3ba6364755c98beb814b5e7d5541e8b4e1a0) )
    ROM_LOAD( "yy6",   0xb000, 0x1000, CRC(2e8b1265) SHA1(6fb67b6a5b627bcbd10c72ac8c9e4d9f4dd7860f) )
    ROM_LOAD( "yy7",   0xc000, 0x1000, CRC(20f93411) SHA1(126c27442a4e35d054a236c41930603241d08ccf) )
    ROM_LOAD( "yy8",   0xd000, 0x1000, CRC(926f90c8) SHA1(dbdfc0e9184a4d9d44d04fdb8fed19b35a8edadc) )
    ROM_LOAD( "yy9",   0xe000, 0x1000, CRC(2f999480) SHA1(582baf285cadf8431ff80f5b63a02fbbefb62e45) )
    ROM_LOAD( "yy10",  0xf000, 0x1000, CRC(b31d20e2) SHA1(e2ba4e6b81a02c3c02353774eb63a72cdfe5f2c3) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
    ROM_LOAD( "yy27",  0xf800, 0x0800, CRC(5a2aa0f3) SHA1(16c7c2db39f33ea3506e07312352ccbfe5528fbd) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "yy101", 0x0000, 0x0800, CRC(3cf13038) SHA1(29c1b309d9046087a50ca78a5f7cba694271af26) )
ROM_END


ROM_START( kram )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
    ROM_LOAD( "ks14-1", 0xa000, 0x1000, CRC(fe69ac79) SHA1(6df0f98e6c0901c058123988bf22a6dd9f0a1fac) )
    ROM_LOAD( "ks15",   0xb000, 0x1000, CRC(4b2c175e) SHA1(4f9d4dcc78a12e994d499b182c8229d5fa63b805) )
    ROM_LOAD( "ks16",   0xc000, 0x1000, CRC(9500a05d) SHA1(18e0107111f79ba5dc6d568e3a6e7e7778955d0b) )
    ROM_LOAD( "ks17",   0xd000, 0x1000, CRC(c752a3a1) SHA1(1d03ea97b9ca6fa3d4c43ac867ab737439d987af) )
    ROM_LOAD( "ks18",   0xe000, 0x1000, CRC(79158b03) SHA1(0d4873471b5b7ace0de8ec421ff3d74650790f7e) )
    ROM_LOAD( "ks19-1", 0xf000, 0x1000, CRC(759ea6ce) SHA1(7962f713dd93c73475fa1f64635d8e965336484b) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
    ROM_LOAD( "ks5",    0xa000, 0x1000, CRC(1c472080) SHA1(a85400be562ef6b817f8a654f29d966d3a198ab4) )
    ROM_LOAD( "ks6",    0xb000, 0x1000, CRC(b8926622) SHA1(e25a8b2ff192f6ab0328fd7b3c58d638342f79e2) )
    ROM_LOAD( "ks7",    0xc000, 0x1000, CRC(c98a7485) SHA1(e310d53ae65d456e12a2475e9ac578592b0e82ba) )
    ROM_LOAD( "ks8",    0xd000, 0x1000, CRC(1127c4e4) SHA1(d78a8a964aac29fb71a55acf7956355724a234eb) )
    ROM_LOAD( "ks9",    0xe000, 0x1000, CRC(d3bc8b5e) SHA1(2c5b882c54bdb48f9a76abfe734b99390b89d76c) )
    ROM_LOAD( "ks10",   0xf000, 0x1000, CRC(e0426444) SHA1(3c4ea66f8ee907452e67aeb7cfaa15bee02b004b) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
    ROM_LOAD( "ks27",   0xf800, 0x0800, CRC(c46530c8) SHA1(d2df3f2228a5cff7d7b04b5bbbc4820d2fe84d8d) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "ks101.dat", 0x0000, 0x0800, CRC(e53d97b7) SHA1(acfc3a5c5e73bd2d37e04ac357043b708d1982de) )
ROM_END


ROM_START( kram2 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
    ROM_LOAD( "ks14", 0xa000, 0x1000, CRC(a2eac1ff) SHA1(128f83b1760492cbb272828ad8c67ea9a5db862a) )
    ROM_LOAD( "ks15", 0xb000, 0x1000, CRC(4b2c175e) SHA1(4f9d4dcc78a12e994d499b182c8229d5fa63b805) )
    ROM_LOAD( "ks16", 0xc000, 0x1000, CRC(9500a05d) SHA1(18e0107111f79ba5dc6d568e3a6e7e7778955d0b) )
    ROM_LOAD( "ks17", 0xd000, 0x1000, CRC(c752a3a1) SHA1(1d03ea97b9ca6fa3d4c43ac867ab737439d987af) )
    ROM_LOAD( "ks18", 0xe000, 0x1000, CRC(79158b03) SHA1(0d4873471b5b7ace0de8ec421ff3d74650790f7e) )
    ROM_LOAD( "ks19", 0xf000, 0x1000, CRC(053c5e09) SHA1(cd6e5b54abf73c1ccf318ca18fceb56b51a3847f) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
    ROM_LOAD( "ks5",  0xa000, 0x1000, CRC(1c472080) SHA1(a85400be562ef6b817f8a654f29d966d3a198ab4) )
    ROM_LOAD( "ks6",  0xb000, 0x1000, CRC(b8926622) SHA1(e25a8b2ff192f6ab0328fd7b3c58d638342f79e2) )
    ROM_LOAD( "ks7",  0xc000, 0x1000, CRC(c98a7485) SHA1(e310d53ae65d456e12a2475e9ac578592b0e82ba) )
    ROM_LOAD( "ks8",  0xd000, 0x1000, CRC(1127c4e4) SHA1(d78a8a964aac29fb71a55acf7956355724a234eb) )
    ROM_LOAD( "ks9",  0xe000, 0x1000, CRC(d3bc8b5e) SHA1(2c5b882c54bdb48f9a76abfe734b99390b89d76c) )
    ROM_LOAD( "ks10", 0xf000, 0x1000, CRC(e0426444) SHA1(3c4ea66f8ee907452e67aeb7cfaa15bee02b004b) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
    ROM_LOAD( "ks27", 0xf800, 0x0800, CRC(c46530c8) SHA1(d2df3f2228a5cff7d7b04b5bbbc4820d2fe84d8d) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "ks101.dat", 0x0000, 0x0800, CRC(e53d97b7) SHA1(acfc3a5c5e73bd2d37e04ac357043b708d1982de) )
ROM_END


ROM_START( kram3 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )	/* encrypted */
    ROM_LOAD( "kr-u14", 0xa000, 0x1000, CRC(02c1bd1e) SHA1(5f13f32ca2da0e93ed43b052c8c33af9ac67cb6c) )
    ROM_LOAD( "kr-u15", 0xb000, 0x1000, CRC(46b3ff33) SHA1(7db45971972df144a21fee4cc015b0190b502e12) )
    ROM_LOAD( "kr-u16", 0xc000, 0x1000, CRC(f202b9cf) SHA1(baf27507611c3029e2dfb1a4ff86e6fe17171246) )
    ROM_LOAD( "kr-u17", 0xd000, 0x1000, CRC(257cea23) SHA1(f9503c4a0f94d35a55033c02dda4d03737eedb90) )
    ROM_LOAD( "kr-u18", 0xe000, 0x1000, CRC(da3aed8c) SHA1(0107d58fa006a39b47513381aead760190abef35) )
    ROM_LOAD( "kr-u19", 0xf000, 0x1000, CRC(496ab571) SHA1(30e12b31ffd70a8a1ce23c845e89170ca3cabaa5) )

	ROM_REGION( 2*0x10000, REGION_CPU2, 0 )	/* encrypted */
    ROM_LOAD( "kr-u5",  0xa000, 0x1000, CRC(9e63c2bc) SHA1(f61a2b93ed322b62818f31fddb324c666380eff7) )
    ROM_LOAD( "kr-u6",  0xb000, 0x1000, CRC(a0ff1244) SHA1(5bc3f3f8caac0dfc8c1381d34e5b8ef5c8202982) )
    ROM_LOAD( "kr-u7",  0xc000, 0x1000, CRC(20a15024) SHA1(094951c4cd06e32af2cb2faec04c31d55ade6b7b) )
    ROM_LOAD( "ks8",    0xd000, 0x1000, CRC(1127c4e4) SHA1(d78a8a964aac29fb71a55acf7956355724a234eb) )
    ROM_LOAD( "ks9",    0xe000, 0x1000, CRC(d3bc8b5e) SHA1(2c5b882c54bdb48f9a76abfe734b99390b89d76c) )
    ROM_LOAD( "kr-u10", 0xf000, 0x1000, CRC(0a8adbd8) SHA1(8ab806108c68aa2740d9e157dd215b371e81c482) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
    ROM_LOAD( "ks27",   0xf800, 0x0800, CRC(c46530c8) SHA1(d2df3f2228a5cff7d7b04b5bbbc4820d2fe84d8d) )

	ROM_REGION( 0x5474, REGION_USER1, 0)   /* decryption table */
	ROM_LOAD( "krampatch1.bin", 0, 0x5474, CRC(962dabc9) SHA1(0be692597aa895f298d8c7c6acbf84431ab1412a) )

	ROM_REGION( 0x2764, REGION_USER2, 0)   /* decryption table */
	ROM_LOAD( "krampatch2.bin", 0, 0x2764, CRC(ea26b72a) SHA1(c4f6aaf9c2ab22ef8305b57728c602e1d4d74980) )
ROM_END


ROM_START( zookeep )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "za12", 0x8000, 0x1000, CRC(4e40d8dc) SHA1(dd7923dcb55a2a1ae0f2029caf5a8904a9ebe8b1) )
	ROM_LOAD( "za13", 0x9000, 0x1000, CRC(eebd5248) SHA1(ebe7f8c436bfefa4236f603fbcbd38d2f4cfd2bd) )
	ROM_LOAD( "za14", 0xa000, 0x1000, CRC(fab43297) SHA1(daa5a780bc9f171da0f6db5319b1519caa09c6c9) )
	ROM_LOAD( "za15", 0xb000, 0x1000, CRC(ef8cd67c) SHA1(f3a2e12ccfa45eb77c2a6e0d9cc0601b99273fd3) )
	ROM_LOAD( "za16", 0xc000, 0x1000, CRC(ccfc15bc) SHA1(56ac6e89825fcde9cf7aeb5d0765a02f5474174a) )
	ROM_LOAD( "za17", 0xd000, 0x1000, CRC(358013f4) SHA1(dd3fae69bf460f89c71e7c78d229dd86605c5950) )
	ROM_LOAD( "za18", 0xe000, 0x1000, CRC(37886afe) SHA1(a0cc902b2d253466e21c4fbf9d3339069fe79ebe) )
	ROM_LOAD( "za19", 0xf000, 0x1000, CRC(bbfb30d9) SHA1(bc6bd5525b159bee7b08b6967cd3088b7bd10fee) )

	ROM_REGION( 0x12000, REGION_CPU2, 0 )
	ROM_LOAD( "za5",  0x0a000, 0x1000, CRC(dc0c3cbd) SHA1(8335cd91bbacc680a3a98a5242d4cb5a6f61b2b5) )
	ROM_LOAD( "za3",  0x10000, 0x1000, CRC(cc4d0aee) SHA1(05c0025e96b432088b46100051a2c780e46b7457) )
	ROM_LOAD( "za6",  0x0b000, 0x1000, CRC(27c787dd) SHA1(1142790d875573d0c39d846aba4b06946fd2bc88) )
	ROM_LOAD( "za4",  0x11000, 0x1000, CRC(ec3b10b1) SHA1(44303ab923d776052ca4d2d09a6a4315d67adc4b) )

	ROM_LOAD( "za7",  0x0c000, 0x1000, CRC(1479f480) SHA1(bd0e9eead0f1213eb3b9653c73257bc704346ab0) )
	ROM_LOAD( "za8",  0x0d000, 0x1000, CRC(4c96cdb2) SHA1(67e506462317d882c4e5c2e16318411d4958ac63) )
	ROM_LOAD( "za9",  0x0e000, 0x1000, CRC(a4f7d9e0) SHA1(a958b4d305bb397aa46d8fdab9dc7e472237ca11) )
	ROM_LOAD( "za10", 0x0f000, 0x1000, CRC(05df1a5a) SHA1(30797838c25cca038023c188cd9fa45277c4190d) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "za25", 0xd000, 0x1000, CRC(779b8558) SHA1(7312e63c23d92c9c52e93cc445a718bc8fe35a0a) )
	ROM_LOAD( "za26", 0xe000, 0x1000, CRC(60a810ce) SHA1(d97e5acea0ef1c208f8e5e95024c83dd6bc9b028) )
	ROM_LOAD( "za27", 0xf000, 0x1000, CRC(99ed424e) SHA1(e4e543dcb77f153aeb78904d11b95381d039299e) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "za_coin.bin", 0x0000, 0x0800, CRC(364d3557) SHA1(049d0759750c576187053306e07984b1e5877df7) )
ROM_END


ROM_START( zookeep2 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "za12",     0x8000, 0x1000, CRC(4e40d8dc) SHA1(dd7923dcb55a2a1ae0f2029caf5a8904a9ebe8b1) )
	ROM_LOAD( "za13",     0x9000, 0x1000, CRC(eebd5248) SHA1(ebe7f8c436bfefa4236f603fbcbd38d2f4cfd2bd) )
	ROM_LOAD( "za14",     0xa000, 0x1000, CRC(fab43297) SHA1(daa5a780bc9f171da0f6db5319b1519caa09c6c9) )
	ROM_LOAD( "za15",     0xb000, 0x1000, CRC(ef8cd67c) SHA1(f3a2e12ccfa45eb77c2a6e0d9cc0601b99273fd3) )
	ROM_LOAD( "za16",     0xc000, 0x1000, CRC(ccfc15bc) SHA1(56ac6e89825fcde9cf7aeb5d0765a02f5474174a) )
	ROM_LOAD( "za17",     0xd000, 0x1000, CRC(358013f4) SHA1(dd3fae69bf460f89c71e7c78d229dd86605c5950) )
	ROM_LOAD( "za18",     0xe000, 0x1000, CRC(37886afe) SHA1(a0cc902b2d253466e21c4fbf9d3339069fe79ebe) )
	ROM_LOAD( "za19.red", 0xf000, 0x1000, CRC(ec01760e) SHA1(169ab9d3a0abe325d960f9ed358258b3d6fcd4be) )

	ROM_REGION( 0x12000, REGION_CPU2, 0 )
	ROM_LOAD( "za5",      0x0a000, 0x1000, CRC(dc0c3cbd) SHA1(8335cd91bbacc680a3a98a5242d4cb5a6f61b2b5) )
	ROM_LOAD( "za3",      0x10000, 0x1000, CRC(cc4d0aee) SHA1(05c0025e96b432088b46100051a2c780e46b7457) )
	ROM_LOAD( "za6",      0x0b000, 0x1000, CRC(27c787dd) SHA1(1142790d875573d0c39d846aba4b06946fd2bc88) )
	ROM_LOAD( "za4",      0x11000, 0x1000, CRC(ec3b10b1) SHA1(44303ab923d776052ca4d2d09a6a4315d67adc4b) )

	ROM_LOAD( "za7",      0x0c000, 0x1000, CRC(1479f480) SHA1(bd0e9eead0f1213eb3b9653c73257bc704346ab0) )
	ROM_LOAD( "za8",      0x0d000, 0x1000, CRC(4c96cdb2) SHA1(67e506462317d882c4e5c2e16318411d4958ac63) )
	ROM_LOAD( "za9",      0x0e000, 0x1000, CRC(a4f7d9e0) SHA1(a958b4d305bb397aa46d8fdab9dc7e472237ca11) )
	ROM_LOAD( "za10",     0x0f000, 0x1000, CRC(05df1a5a) SHA1(30797838c25cca038023c188cd9fa45277c4190d) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "za25",     0xd000, 0x1000, CRC(779b8558) SHA1(7312e63c23d92c9c52e93cc445a718bc8fe35a0a) )
	ROM_LOAD( "za26",     0xe000, 0x1000, CRC(60a810ce) SHA1(d97e5acea0ef1c208f8e5e95024c83dd6bc9b028) )
	ROM_LOAD( "za27",     0xf000, 0x1000, CRC(99ed424e) SHA1(e4e543dcb77f153aeb78904d11b95381d039299e) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "za_coin.bin", 0x0000, 0x0800, CRC(364d3557) SHA1(049d0759750c576187053306e07984b1e5877df7) )
ROM_END


ROM_START( zookeep3 )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "za12",    0x8000, 0x1000, CRC(4e40d8dc) SHA1(dd7923dcb55a2a1ae0f2029caf5a8904a9ebe8b1) )
	ROM_LOAD( "za13",    0x9000, 0x1000, CRC(eebd5248) SHA1(ebe7f8c436bfefa4236f603fbcbd38d2f4cfd2bd) )
	ROM_LOAD( "za14",    0xa000, 0x1000, CRC(fab43297) SHA1(daa5a780bc9f171da0f6db5319b1519caa09c6c9) )
	ROM_LOAD( "za15",    0xb000, 0x1000, CRC(ef8cd67c) SHA1(f3a2e12ccfa45eb77c2a6e0d9cc0601b99273fd3) )
	ROM_LOAD( "za16",    0xc000, 0x1000, CRC(ccfc15bc) SHA1(56ac6e89825fcde9cf7aeb5d0765a02f5474174a) )
	ROM_LOAD( "za17",    0xd000, 0x1000, CRC(358013f4) SHA1(dd3fae69bf460f89c71e7c78d229dd86605c5950) )
	ROM_LOAD( "za18",    0xe000, 0x1000, CRC(37886afe) SHA1(a0cc902b2d253466e21c4fbf9d3339069fe79ebe) )
	ROM_LOAD( "za19",    0xf000, 0x1000, CRC(bbfb30d9) SHA1(bc6bd5525b159bee7b08b6967cd3088b7bd10fee) )

	ROM_REGION( 0x12000, REGION_CPU2, 0 )
	ROM_LOAD( "za5",     0x0a000, 0x1000, CRC(dc0c3cbd) SHA1(8335cd91bbacc680a3a98a5242d4cb5a6f61b2b5) )
	ROM_LOAD( "za3",     0x10000, 0x1000, CRC(cc4d0aee) SHA1(05c0025e96b432088b46100051a2c780e46b7457) )
	ROM_LOAD( "za6",     0x0b000, 0x1000, CRC(27c787dd) SHA1(1142790d875573d0c39d846aba4b06946fd2bc88) )
	ROM_LOAD( "za4",     0x11000, 0x1000, CRC(ec3b10b1) SHA1(44303ab923d776052ca4d2d09a6a4315d67adc4b) )

	ROM_LOAD( "za7",     0x0c000, 0x1000, CRC(1479f480) SHA1(bd0e9eead0f1213eb3b9653c73257bc704346ab0) )
	ROM_LOAD( "za8",     0x0d000, 0x1000, CRC(4c96cdb2) SHA1(67e506462317d882c4e5c2e16318411d4958ac63) )
	ROM_LOAD( "zv35.9",  0x0e000, 0x1000, CRC(d14123b7) SHA1(5d35bffd2203225937bb83598ffdc31a46a1dbca) )
	ROM_LOAD( "zv36.10", 0x0f000, 0x1000, CRC(23705777) SHA1(952cd8d9ee00268bff2022b2428b1dbfab061254) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "za25",    0xd000, 0x1000, CRC(779b8558) SHA1(7312e63c23d92c9c52e93cc445a718bc8fe35a0a) )
	ROM_LOAD( "za26",    0xe000, 0x1000, CRC(60a810ce) SHA1(d97e5acea0ef1c208f8e5e95024c83dd6bc9b028) )
	ROM_LOAD( "za27",    0xf000, 0x1000, CRC(99ed424e) SHA1(e4e543dcb77f153aeb78904d11b95381d039299e) )

	ROM_REGION( 0x0800, REGION_CPU4, 0 )
	ROM_LOAD( "za_coin.bin", 0x0000, 0x0800, CRC(364d3557) SHA1(049d0759750c576187053306e07984b1e5877df7) )
ROM_END


ROM_START( slither )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "u31.cpu", 0xd800, 0x0800, CRC(3dfff970) SHA1(ee50840e26aa7be226dbe9a32a8344bb75b8de07) )
	ROM_LOAD( "u30.cpu", 0xe000, 0x0800, CRC(8cbc5af8) SHA1(3d563d0bbbce007bd6db6d620e1b0996c67029f6) )
	ROM_LOAD( "u29.cpu", 0xe800, 0x0800, CRC(98c14510) SHA1(7a39b4b691883ad5d079a5c199b93986071c4a49) )
	ROM_LOAD( "u28.cpu", 0xf000, 0x0800, CRC(2762f612) SHA1(2f094832b199d8514ed04c517fca828c75ac7bfa) )
	ROM_LOAD( "u27.cpu", 0xf800, 0x0800, CRC(9306d5b1) SHA1(e5a2c613b1e083b70d63e24dd45472364930398a) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "u41.cpu", 0xd000, 0x0800, CRC(e4c60a57) SHA1(5ce9fe3d84b7a5ded372f5c3fc14a335a37ad472) )
	ROM_LOAD( "u40.cpu", 0xd800, 0x0800, CRC(5dcec622) SHA1(4c00b91106d1e505bdbd3aefb46bfb1a17f14fc1) )
	ROM_LOAD( "u39.cpu", 0xe000, 0x0800, CRC(69829c2a) SHA1(5ea1f7e6db2b2cebab8663f7a05496f2e13131f9) )
	ROM_LOAD( "u38.cpu", 0xe800, 0x0800, CRC(6adc64c6) SHA1(0502fa9f793a246ade30d506cce62c5d9b773952) )
	ROM_LOAD( "u37.cpu", 0xf000, 0x0800, CRC(55d31c96) SHA1(cf04b30369407dd9a8f0ef5850fdc13d13a7d56d) )
	ROM_LOAD( "u36.cpu", 0xf800, 0x0800, CRC(d5ffc013) SHA1(d278c0a6be86010cdf4b18afc5099dfd39f26523) )
ROM_END


ROM_START( slithera )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "u31.cpu", 0xd800, 0x0800, CRC(3dfff970) SHA1(ee50840e26aa7be226dbe9a32a8344bb75b8de07) )
	ROM_LOAD( "u30.cpu", 0xe000, 0x0800, CRC(8cbc5af8) SHA1(3d563d0bbbce007bd6db6d620e1b0996c67029f6) )
	ROM_LOAD( "u29.cpu", 0xe800, 0x0800, CRC(98c14510) SHA1(7a39b4b691883ad5d079a5c199b93986071c4a49) )
	ROM_LOAD( "u28.cpu", 0xf000, 0x0800, CRC(2762f612) SHA1(2f094832b199d8514ed04c517fca828c75ac7bfa) )
	ROM_LOAD( "u27.cpu", 0xf800, 0x0800, CRC(9306d5b1) SHA1(e5a2c613b1e083b70d63e24dd45472364930398a) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "u41.cpu", 0xd000, 0x0800, CRC(e4c60a57) SHA1(5ce9fe3d84b7a5ded372f5c3fc14a335a37ad472) )
	ROM_LOAD( "u40.cpu", 0xd800, 0x0800, CRC(5dcec622) SHA1(4c00b91106d1e505bdbd3aefb46bfb1a17f14fc1) )
	ROM_LOAD( "u39.cpu", 0xe000, 0x0800, CRC(69829c2a) SHA1(5ea1f7e6db2b2cebab8663f7a05496f2e13131f9) )
	ROM_LOAD( "u38a.cpu",0xe800, 0x0800, CRC(423adfef) SHA1(f10ca9acf31e602a77b011b002bd53cebf5ba502) )
	ROM_LOAD( "u37.cpu", 0xf000, 0x0800, CRC(55d31c96) SHA1(cf04b30369407dd9a8f0ef5850fdc13d13a7d56d) )
	ROM_LOAD( "u36a.cpu",0xf800, 0x0800, CRC(5ac4e244) SHA1(077bf6f3cb98c3f7845393fb57a080d5bdfc2920) )
ROM_END

ROM_START( complexx )
	ROM_REGION( 0x10000, REGION_CPU1, 0 )
	ROM_LOAD( "cx14.bin", 0xa000, 0x1000, CRC(f123a0de) SHA1(fbb64c33d01031e9da78e725dbdaf87d6e33e23c) )
	ROM_LOAD( "cx15.bin", 0xb000, 0x1000, CRC(0fcb966f) SHA1(f7ea6f0ce356629b8133214c7b2e5ede41c54e6c) )
	ROM_LOAD( "cx16.bin", 0xc000, 0x1000, CRC(aa11e0e3) SHA1(4c0b4fc61c682d501ec3dffd7e324d4dc16425a7) )
	ROM_LOAD( "cx17.bin", 0xd000, 0x1000, CRC(f610856e) SHA1(a01edb705cf7c321800c2739beaee584bfc37270) )
	ROM_LOAD( "cx18.bin", 0xe000, 0x1000, CRC(8f8c3984) SHA1(4cfc83c7a972eeb6e386c9f663388b57c1ebfd00) )
	ROM_LOAD( "cx19.bin", 0xf000, 0x1000, CRC(13af3ba8) SHA1(79ce3dce960d89161db89821d9b211ffd1d399d7) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "cx5.bin",  0xa000, 0x1000, CRC(62a2b87b) SHA1(eeecdfd3eeba15cd93d1514132919fdc9254c1cb) )
	ROM_LOAD( "cx6.bin",  0xb000, 0x1000, CRC(dfa7c088) SHA1(626cae67db85ab8f87c59f5945032b4cb6683c8b) )
	ROM_LOAD( "cx7.bin",  0xc000, 0x1000, CRC(c8bd6759) SHA1(5e2debc2f5acf5c14da2d0c3daf49a0f63ade07b) )
	ROM_LOAD( "cx8.bin",  0xd000, 0x1000, CRC(14a57221) SHA1(21e0ac7db246cc0a23f0992e6568a9e737db725a) )
	ROM_LOAD( "cx9.bin",  0xe000, 0x1000, CRC(fc2d4a9f) SHA1(ce16cafe09e2a4411bfe3063136507e649ac7870) )
	ROM_LOAD( "cx10.bin", 0xf000, 0x1000, CRC(96e0c1ad) SHA1(4e67b46cc21b4b3e3259d34c618c6d4e4bb1ae78) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "cx26.bin",    0xe000, 0x1000, CRC(f4f19c9b) SHA1(d14ae6b59016c428a7e08862f1a4ec89f4eac4fb) )
	ROM_LOAD( "cx27.bin",    0xf000, 0x1000, CRC(7e177328) SHA1(bd3d361bb44341a01a8d118a682ad4efa19be8ff) )
ROM_END




/*************************************
 *
 *  Game-specific initialization
 *
 *************************************/

static DRIVER_INIT( kram )
{
	/* we need to override one PIA handler to prevent controls from getting disabled */
	memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0x9400, 0x97ff, 0, 0, zookeep_pia_0_w);
}


static DRIVER_INIT( kram3 )
{
	const UINT8 *patch;
	UINT8 *rom, *decrypted;
	int i, size;

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

    The encryption algorithm is not known.

    I kept the two tables separate, but the two CPUs are encrypted identically.
    Addresses that are present in both tables show that when the encrypted value
    is the same, the decrypted value is the same. When one bit changes in the
    encrypted value, one bit changes in the decrypted value, and so on.
    I couldn't find any obvious relationship between values at different addresses.

    One important thing to note is that for 6809 instructions that take two
    opcodes (that is, 10 xx and 11 xx) only the first opcode is encrypted, not the
    second. This is different from how the Konami-1 CPU works, where both opcodes
    are encrypted.

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

	i = 0;
	patch = memory_region(REGION_USER1);
	size = memory_region_length(REGION_USER1);
	rom = memory_region(REGION_CPU1);
	decrypted = auto_malloc(0x6000);

	memory_set_decrypted_region(0, 0xa000, 0xffff, decrypted);

	memcpy(decrypted,&rom[0xa000],0x6000);
	while (i < size)
	{
		int a = patch[i] + (patch[i+1] << 8);
		if (rom[a] != patch[i+2])
			logerror("error in patch data at address %04x\n",a);
		else
			decrypted[a-0xa000] = patch[i+3];

		i += 4;
	}

	i = 0;
	patch = memory_region(REGION_USER2);
	size = memory_region_length(REGION_USER2);
	rom = memory_region(REGION_CPU2);
	decrypted = auto_malloc(0x6000);

	memory_set_decrypted_region(1, 0xa000, 0xffff, decrypted);

	memcpy(decrypted,&rom[0xa000],0x6000);
	while (i < size)
	{
		int a = patch[i] + (patch[i+1] << 8);
		if (rom[a] != patch[i+2])
			logerror("error in patch data at address %04x\n",a);
		else
			decrypted[a-0xa000] = patch[i+3];

		i += 4;
	}

	init_kram(machine);
}

static DRIVER_INIT( zookeep )
{
	/* we need to override two PIA handlers to prevent controls from getting disabled */
	memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0x1400, 0x17ff, 0, 0, zookeep_pia_0_w);
	memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0x1c00, 0x1fff, 0, 0, zookeep_pia_2_w);
}


static DRIVER_INIT( slither )
{
	memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0x9800, 0x9bff, 0, 0, pia_1_r);
	memory_install_write8_handler(0, ADDRESS_SPACE_PROGRAM, 0x9800, 0x9bff, 0, 0, pia_1_w);
	memory_install_write8_handler(1, ADDRESS_SPACE_PROGRAM, 0x9401, 0x9401, 0, 0, slither_vram_mask_w);
}



/*************************************
 *
 *  Game drivers
 *
 *************************************/

GAME( 1981, qix,      0,        qix,      qix,      0,        ROT270, "Taito America Corporation", "Qix (set 1)", 0 )
GAME( 1981, qixa,     qix,      qix,      qix,      0,        ROT270, "Taito America Corporation", "Qix (set 2)", 0 )
GAME( 1981, qixb,     qix,      qix,      qix,      0,        ROT270, "Taito America Corporation", "Qix (set 3)", 0 )
GAME( 1981, qix2,     qix,      qix,      qix,      0,        ROT270, "Taito America Corporation", "Qix II (Tournament)", 0 )
GAME( 1981, sdungeon, 0,        mcu,      sdungeon, 0,        ROT270, "Taito America Corporation", "Space Dungeon", 0 )
GAME( 1982, elecyoyo, 0,        elecyoyo, elecyoyo, 0,        ROT270, "Taito America Corporation", "The Electric Yo-Yo (set 1)", 0 )
GAME( 1982, elecyoy2, elecyoyo, elecyoyo, elecyoyo, 0,        ROT270, "Taito America Corporation", "The Electric Yo-Yo (set 2)", 0 )
GAME( 1982, kram,     0,        mcu,      kram,     kram,     ROT0,   "Taito America Corporation", "Kram (set 1)", 0 )
GAME( 1982, kram2,    kram,     mcu,      kram,     kram,     ROT0,   "Taito America Corporation", "Kram (set 2)", 0 )
GAME( 1982, kram3,    kram,     qix,      kram,     kram3,    ROT0,   "Taito America Corporation", "Kram (encrypted)", 0 )
GAME( 1982, zookeep,  0,        zookeep,  zookeep,  zookeep,  ROT0,   "Taito America Corporation", "Zoo Keeper (set 1)", 0 )
GAME( 1982, zookeep2, zookeep,  zookeep,  zookeep,  zookeep,  ROT0,   "Taito America Corporation", "Zoo Keeper (set 2)", 0 )
GAME( 1982, zookeep3, zookeep,  zookeep,  zookeep,  zookeep,  ROT0,   "Taito America Corporation", "Zoo Keeper (set 3)", 0 )
GAME( 1982, slither,  0,        slither,  slither,  slither,  ROT270, "Century II",                "Slither (set 1)", 0 )
GAME( 1982, slithera, slither,  slither,  slither,  slither,  ROT270, "Century II",                "Slither (set 2)", 0 )
GAME( 1984, complexx, 0,        qix,      complexx, 0,        ROT270, "Taito America Corporation", "Complex X", 0 )
