/*

Sliver
Hollow Corp., 1996

PCB Layout
----------

WS16-AJ-940820
|---------|-----------|------------------------------------|
|   TL084 |   i8031   |   KA-1                             |
|         |-----------||--------|                          |
|  AD-65    KA-2       |ACTEL   |   KA-6  KA-7  KA-8  KA-9 |
|                      |A1020B  |                          |
|           KA-3       |PL84C   |                          |
|               PAL    |        |                          |
|                      |--------|                          |
|             AT76C176                62256        62256   |
|                                                          |
|J             KM75C02                62256        62256   |
|A                                                         |
|M                 PAL                62256        62256   |
|M                                                         |
|A                                    62256        62256   |
|                                                  HY534256|
|   DSW1           PAL                 |-------|   HY534256|
|          PAL     PAL                 |ZORAN  |   HY534256|
|                            |-------| |ZR36011|   HY534256|
|   DSW2   62256    62256    |ZORAN  | |-------|           |
|          KA-4     KA-5     |ZR36050|                     |
|                            |-------|        |-------|    |
|        |------------------|16MHz            |FUJI   |    |
|        |                  |                 |MD0204 |    |
|        |    MC68000P10    |                 |-------|    |
|        |                  |           KA-12  KA-11  KA-10|
|24MHz   |------------------|                              |
|----------------------------------------------------------|
Notes:
      i8031    - Intel 8031 CPU, clock 8.000MHz (DIP40)
      68000    - Motorola MC68000 CPU, clock 12.000MHz (DIP64)
      AT76C176 - Atmel AT76C176 1-Channel 6-Bit AD/DA Convertor with Clamp Circuit (DIP28).
                 When removed, text and _some_ graphics turn black (palette related use)
                 This chip is compatible to Fujitsu MB40176
      A1020B   - Actel A1020B FPGA (PLCC84)
      ZR36050  - Zoran ZR36050PQC-21 DF4B9423G (QFP100)
      ZR36011  - Zoran ZR36011PQC JAPAN 079414 (QFP100)
      MD0204   - Fuji MD0204 JAPAN F39D110 (QFP128)
      62256    - 32K x8 SRAM (DIP28)
      HY534256 - Hyundai 256K x4 (1MBit) DRAM (DIP20)
      KM75C02  - Samsung KM75C02 FIFO RAM (DIP28)
      AD-65    - Clone OKI M6295 (QFP44), clock 1.000MHz, sample rate = 1000000Hz / 132
      VSync    - 60Hz


    The background images on thie hsrdware are in JPEG format, the Zoran chips are
    hardware JPEG decompression chips

*/

#include "driver.h"
#include "sound/okim6295.h"

READ16_HANDLER( sliver_rand )
{
	return mame_rand(Machine);
}

static ADDRESS_MAP_START( sliver_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x07ffff) AM_ROM

	/* maybe registers for some sprite/gfx blitter? */
	AM_RANGE(0xff0068, 0xff0069) AM_READ(sliver_rand)
	AM_RANGE(0xff0078, 0xff0079) AM_WRITE(MWA16_NOP) // writes here, then stops the CPU with stop #2300, waiting for irq?
ADDRESS_MAP_END

/* Sound I8031 */

static ADDRESS_MAP_START( soundmem_prg, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xffff) AM_ROM
ADDRESS_MAP_END

static ADDRESS_MAP_START( soundmem_data, ADDRESS_SPACE_DATA, 8 )
ADDRESS_MAP_END

static ADDRESS_MAP_START( soundmem_io, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_END

VIDEO_START(sliver)
{
}

VIDEO_UPDATE(sliver)
{

	return 0;
}

INPUT_PORTS_START( sliver )
    PORT_START
    PORT_DIPNAME( 0x0001, 0x0001, "0" )
    PORT_DIPSETTING(      0x0001, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0002, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0004, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0008, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0010, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0020, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0040, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0080, 0x0080, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0080, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0100, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0200, 0x0200, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0200, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0400, 0x0400, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0400, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x0800, 0x0800, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x0800, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x1000, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x2000, 0x2000, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x2000, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x4000, 0x4000, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x4000, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
    PORT_DIPNAME( 0x8000, 0x8000, DEF_STR( Unknown ) )
    PORT_DIPSETTING(      0x8000, DEF_STR( Off ) )
    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
INPUT_PORTS_END


static MACHINE_DRIVER_START( sliver )
	MDRV_CPU_ADD_TAG("main", M68000, 12000000)
	MDRV_CPU_PROGRAM_MAP(sliver_map,0)
	MDRV_CPU_VBLANK_INT(irq6_line_hold,1) // several of the vectors look valid, not just this one

	MDRV_CPU_ADD(I8051, 8000000) /* I8031 ! */
	MDRV_CPU_PROGRAM_MAP(soundmem_prg,0)
	MDRV_CPU_DATA_MAP(soundmem_data,0)
	MDRV_CPU_IO_MAP(soundmem_io,0)

	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)


	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(64*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0*8, 32*8-1)
	MDRV_PALETTE_LENGTH(0x200)

	MDRV_VIDEO_START(sliver)
	MDRV_VIDEO_UPDATE(sliver)

	MDRV_SPEAKER_STANDARD_STEREO("left", "right")

	MDRV_SOUND_ADD(OKIM6295, 1000000)
	MDRV_SOUND_CONFIG(okim6295_interface_region_1_pin7high)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 0.47)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.47)
MACHINE_DRIVER_END

ROM_START( sliver )
	ROM_REGION( 0x80000, REGION_CPU1, 0 ) /* 68000 Code */
	ROM_LOAD16_BYTE( "ka-4.bin", 0x00001, 0x20000, CRC(4906367f) SHA1(cc030930ffe7018ba6c362cab136798d027db7d8) )
	ROM_LOAD16_BYTE( "ka-5.bin", 0x00000, 0x20000, CRC(f260dabc) SHA1(3727cb8aa652809386075b39a1d85d5b20973702) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 8031 */
	ROM_LOAD( "ka-1.bin", 0x000000, 0x10000, CRC(56e616a2) SHA1(f8952aba62ae0410e300d99e95dc8b752543af1e) )

	ROM_REGION( 0x180000, REGION_SOUND1, 0 ) /* Samples */
	ROM_LOAD( "ka-2.bin", 0x000000, 0x20000, CRC(3df96eb0) SHA1(ec3dfc29da08f6525a1c708839f83094a6784f72) )
	ROM_LOAD( "ka-3.bin", 0x100000, 0x80000, CRC(33ee929c) SHA1(a652ad68c547248ef5fa1ed8006b7ac7aef76383) ) // banked

	ROM_REGION( 0x200000, REGION_GFX1, 0 ) /* Graphics (not tiles) */
	ROM_LOAD( "ka-6.bin", 0x000000, 0x80000, CRC(bd182316) SHA1(a22db9f73a2865f59630183c14201aeede821642) )
	ROM_LOAD( "ka-7.bin", 0x080000, 0x40000, CRC(1c5d6fb9) SHA1(372533264eb41a5f57b2a59eb039adb6334f36c5) )
	ROM_LOAD( "ka-8.bin", 0x100000, 0x80000, CRC(dbfd7489) SHA1(4a7b07d041dce04a8d8d6688698164f988baefc9) )
	ROM_LOAD( "ka-9.bin", 0x180000, 0x40000, CRC(71f044ba) SHA1(bd88bfaa0249de9fd8eb8bd25eae0126744a9046) )

	ROM_REGION( 0x180000, REGION_GFX2, 0 ) /* JPEG(!) compressed GFX */
	ROM_LOAD( "ka-10.bin", 0x000000, 0x80000, CRC(a6824271) SHA1(2eefa4e61491f7b72ccde744fa6f88a1a3c60c92) )
	ROM_LOAD( "ka-11.bin", 0x080000, 0x80000, CRC(4ae121ff) SHA1(ece7cc07483801a0d436def977d72dc7b1a07c8f) )
	ROM_LOAD( "ka-12.bin", 0x100000, 0x80000, CRC(0901e142) SHA1(68ebd38beeedf53414a831c01813881feee33446) )
ROM_END

GAME( 1996, sliver, 0,        sliver, sliver, 0, ROT0,  "Hollow Corp", "Sliver", GAME_NOT_WORKING )
