/* Hyper NeoGeo 64

Driver by David Haywood, ElSemi, Andrew Gardner and Angelo Salese
Rasterizing code provided in part by Andrew Zaferakis.


Notes:
  * The top board is likely identical for all revisions and all "versions" of the hardware.
    It contains the main MIPS CPU and a secondary communications KL5C80.

  * The bottom board is what changes between hardware "versions".  It has a Toshiba MCU with
    a protected internal ROM.  This MCU controls (at least) the inputs per game and communicates
    with the main board through dualport RAM.

  * I believe that this secondary board is used as a protection device.
    The "board type" code comes from it in dualport RAM, and each game reads its inputs differently through dualport.
    It's capable of changing the input ports dynamically (maybe explaining Roads Edge's "do not touch" quote below).
    It probably has a lot to do with the network (Roads Edge network connectors are on this board).

  * The Toshiba CPU datasheet is here : http://kr.ic-on-line.cn/IOL/viewpdf/TMP87CH40N_1029113.htm

  * From the Roads Edge manual : "The Network Check screen will be displayed for about 40 seconds whether
                                  the cabinet is connected for communication competition or not.  After this,
                                  the game screen will then appear.  At the same time the Network Check screen
                                  is displayed, the steering wheel will automatically straighten itself out."
                                 "During the Network Check, absolutely do not touch or try to use the steering wheel,
                                  pedal, shift lever, and switches.  This will cause the cabinet to malfunction."

  * The Japanese text on the Roads Edge network screen says : "waiting to connect network... please wait without touching machine"

ToDo:
  * Buriki One / Xrally and Roads Edge doesn't coin it up, irq issue?
  * Sprite garbage in Beast Busters 2nd Nightmare, another irq issue?
  * Samurai Shodown 64 2 puts "Press 1p & 2p button" msg in gameplay, known to be a MCU simulation issue, i/o port 4 doesn't
    seem to be just an input port but controls program flow too.
  * Work out the purpose of the interrupts and how many are needed.
  * Correct game speed (seems too fast).

  2d:
  * Scroll (base registers?)
  * ROZ (4th tilemap in fatal fury should be floor [in progress], background should zoom)
  * Find registers to control tilemap mode (4bpp/8bpp, 8x8, 16x16)
  * Fix zooming sprites (zoom registers not understood, center versus edge pivot)
  * Priorities
  * Is all the bitmap decoding right?
  * Upgrade to modern video timing.

  3d:
  * Find where the remainder of the 3d display list information is 'hiding'
    -- should the 3d 'ram' be treated like a fifo, instead of like RAM (see Dreamcast etc.)
  * Remaining 3d bits - glowing, etc.
  * Populate the display buffers
  * Does the hng64 do perspective-correct texture mapping?  Doesn't look like it...

  Other:
  * Translate KL5C80 docs and finish up the implementation
  * Figure out what IO $54 & $72 are on the communications CPU
  * Hook up CPU2 (v30 based?) no rom? (maybe its the 'sound driver' the game uploads?)
  * Add sound
  * Backup ram etc.
  * Correct cpu speed
  * What is ROM1?  Data for the KL5C80?  There's plenty of physical space to map it to.
*/

/*
NeoGeo Hyper 64 (Main Board)
SNK, 1997

This is a 3D system comprising one large PCB with many custom smt components
on both sides, one interface PCB with JAMMA connector and sound circuitry, and
one game cartridge. Only the Main PCB and interface PCB are detailed here.

PCB Layout (Top)
----------------

LVS-MAC SNK 1997.06.02
|--------------------------------------------------------------|
|              CONN9                                           |
|                                                              |
|   ASIC1           ASIC3            CPU1                      |
|                                                              |
|                                               DPRAM1         |
|                        OSC2        ASIC5                 ROM1|
|   FSRAM1               OSC2                                  |
|   FSRAM2                                             FPGA1   |
|   FSRAM3                           ASIC10       OSC4         |
|                                                              |
|                                                 CPU3  IC4    |
|   PSRAM1  ASIC7   ASIC8            DSP1 OSC3    SRAM5        |
|   PSRAM2                                              FROM1  |
|                                                              |
|                                                              |
|              CONN10                                          |
|--------------------------------------------------------------|

No.  PCB Label  IC Markings               IC Package
----------------------------------------------------
01   ASIC1      NEO64-REN                 QFP304
02   ASIC3      NEO64-GTE                 QFP208
03   ASIC5      NEO64-SYS                 QFP208
04   ASIC7      NEO64-BGC                 QFP240
05   ASIC8      NEO64-SPR                 QFP208
06   ASIC10     NEO64-SCC                 QFP208
07   CPU1       NEC D30200GD-100 VR4300   QFP120
08   CPU3       KL5C80A12CFP              QFP80
09   DPRAM1     DT7133 LA35J              PLCC68
10   DSP1       L7A1045 L6028 DSP-A       QFP120
11   FPGA1      ALTERA EPF10K10QC208-4    QFP208
12   FROM1      MBM29F400B-12             TSOP48 (archived as FROM1.BIN)
13   FSRAM1     TC55V1664AJ-15            SOJ44
14   FSRAM2     TC55V1664AJ-15            SOJ44
15   FSRAM3     TC55V1664AJ-15            SOJ44
16   IC4        SMC COM20020-5ILJ         PLCC28
17   OSC1       M33.333 KDS 7M            -
18   OSC2       M50.113 KDS 7L            -
19   OSC3       A33.868 KDS 7M            -
20   OSC4       A40.000 KDS 7L            -
21   PSRAM1     TC551001BFL-70L           SOP32
22   PSRAM2     TC551001BFL-70L           SOP32
23   ROM1       ALTERA EPC1PC8            DIP8   (130817 bytes, archived as ROM1.BIN)
24   SRAM5      TC55257DFL-85L            SOP28


PCB Layout (Bottom)

|--------------------------------------------------------------|
|             CONN10                                           |
|                                                              |
|                                                              |
|   PSRAM4  ASIC9                   SRAM4     CPU1  Y1         |
|   PSRAM3         SRAM1            SRAM3                      |
|                  SRAM2                                       |
|                                                              |
|   FSRAM6                        DRAM3                        |
|   FSRAM5                                                     |
|   FSRAM4                        DRAM1                        |
|                   BROM1         DRAM2                        |
|                                                              |
|                                                              |
|   ASIC2           ASIC4         ASIC6                        |
|                                                              |
|             CONN9                                            |
|--------------------------------------------------------------|

No.  PCB Label  IC Markings               IC Package
----------------------------------------------------
01   ASIC2      NEO64-REN                 QFP304
02   ASIC4      NEO64-TRI2                QFP208
03   ASIC6      NEO64-CVR                 QFP120
04   ASIC9      NEO64-CAL                 QFP208
05   BROM1      MBM29F400B-12             TSOP48  (archived as BROM1.BIN)
06   CPU2       NEC D70326AGJ-16 V53A     QFP120
07   DRAM1      HY51V18164BJC-60          SOJ42
08   DRAM2      HY51V18164BJC-60          SOJ42
09   DRAM3      HY51V18164BJC-60          SOJ42
10   FSRAM4     TC55V1664AJ-15            SOJ44
11   FSRAM5     TC55V1664AJ-15            SOJ44
12   FSRAM6     TC55V1664AJ-15            SOJ44
13   PSRAM3     TC551001BFL-70L           SOP32
14   PSRAM4     TC551001BFL-70L           SOP32
15   SRAM1      TC55257DFL-85L            SOP28
16   SRAM2      TC55257DFL-85L            SOP28
17   SRAM3      TC551001BFL-70L           SOP32
18   SRAM4      TC551001BFL-70L           SOP32
19   Y1         D320L7                    XTAL


INTERFACE PCB
-------------

LVS-JAM SNK 1999.1.20
|---------------------------------------------|
|                 J A M M A                   |
|                                             |
|                                             |
|                                             |
|     SW3             SW1                     |
|                                             |
| IC6                       IOCTR1            |
|                           BACKUP            |
|                           BKRAM1            |
|     SW2   BT1  DPRAM1              IC1      |
|---------------------------------------------|

No.  PCB Label  IC Markings               IC Package
----------------------------------------------------
01   DPRAM1     DT 71321 LA55PF           QFP64
02   IC1        MC44200FT                 QFP44
03   IOCTR1     TOSHIBA TMP87CH40N-4828   SDIP64
04   BACKUP     EPSON RTC62423            SOP24
05   BKRAM1     W24258S-70LE              SOP28
06   IC6        NEC C1891ACY              DIP20
07   BT1        3V Coin Battery
08   SW1        2 position DIPSW  OFF = JAMMA       ON = MVS
09   SW2        4 position DIPSW
10   SW3        2 position DIPSW  OFF = MONO/JAMMA  ON = 2CH MVS

Notes:
       1. The game cart plugs into the main PCB on the TOP side into CONN9 & CONN10
       2. If the game cart is not plugged in, the hardware shows nothing on screen.



Hyper Neo Geo game cartridges
-----------------------------

The game carts contains nothing except a huge pile of surface mounted ROMs
on both sides of the PCB. On a DG1 cart all the roms are 32Mbits, for the
DG2 cart the SC and SP roms are 64Mbit.
The DG1 cart can accept a maximum of 96 ROMs
The DG2 cart can accept a maximum of 84 ROMs


The actual carts are mostly only about 1/3rd to 1/2 populated.
Some of the IC locations between DG1 and DG2 are different also. See the source code below
for the exact number of ROMs used per game and ROM placements.

Games that use the LVS-DG1 cart: Road's Edge

Games that use the LVS-DG2 cart: Fatal Fury: Wild Ambition, Buriki One, SS 64 II

Other games not dumped yet     : Samurai Spirits 64 / Samurai Shodown 64
                                 Samurai Spirits II: Asura Zanmaden / Samurai Shodown: Warrior's Rage
                                 Off Beat Racer / Xtreme Rally
                                 Beast Busters: Second Nightmare
                                 Garou Densetsu 64: Wild Ambition (=Fatal Fury Wild Ambition)*
                                 Round Trip RV (=Road's Edge)*

                               * Different regions might use the same roms, not known yet

                               There might be Rev.A boards for Buriki and Round Trip

pr = program
sc = scroll characters?
sd = sound
tx = textures
sp = sprites?
vt = vertex?

Top
---
LVS-DG1
(C) SNK 1997
1997.5.20
|----------------------------------------------------------------------------|
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
| TX01A.5    TX01A.13        VT03A.19   VT02A.18   VT01A.17   PR01B.81       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX02A.6    TX02A.14        VT06A.22   VT05A.21   VT04A.20   PR03A.83       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX03A.7    TX03A.15        VT09A.25   VT08A.24   VT07A.23   PR05A.85       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX04A.8    TX04A.16        VT12A.28   VT11A.27   VT10A.26   PR07A.87       |
|                                                                            |
|                                                                            |
|                                                                            |
|                            PR15A.95   PR13A.93   PR11A.91   PR09A.89       |
|                                                                            |
|                                                                            |
|                                                                            |
| SC09A.49  SC10A.50   SP09A.61   SP10A.62   SP11A.63   SP12A.64    SD02A.78 |
|                                                                            |
|                                                                            |
|                                                                            |
| SC05A.45  SC06A.46   SP05A.57   SP06A.58   SP07A.59   SP08A.60             |
|                                                                            |
|                                                                            |
|                                                                            |
| SC01A.41  SC02A.42   SP01A.53   SP02A.54   SP03A.55   SP04A.56    SD01A.77 |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|----------------------------------------------------------------------------|

Bottom
------
LVS-DG1
|----------------------------------------------------------------------------|
|                         |----------------------|                           |
|                         |----------------------|                           |
|                                                                            |
|                                                                            |
| SC03A.43  SC04A.44   SP13A.65   SP14A.66   SP15A.67   SP16A.68    SD03A.79 |
|                                                                            |
|                                                                            |
|                                                                            |
| SC07A.47  SC08A.48   SP17A.69   SP18A.70   SP19A.71   SP20A.72             |
|                                                                            |
|                                                                            |
|                                                                            |
| SC11A.51  SC12A.52   SP21A.73   SP22A.74   SP23A.75   SP24A.76    SD04A.80 |
|                                                                            |
|                                                                            |
|                                                                            |
|                            PR16A.96   PR14A.94   PR12A.92   PR10A.90       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX04A.4    TX04A.12        VT24A.40   VT23A.39   VT22A.38   PR08A.88       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX03A.3    TX03A.11        VT21A.37   VT20A.36   VT19A.35   PR06A.86       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX02A.2    TX02A.10        VT18A.34   VT17A.33   VT16A.32   PR04A.84       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX01A.1    TX01A.9         VT15A.31   VT14A.30   VT13A.29   PR02B.82       |
|                                                                            |
|                                                                            |
|                         |----------------------|                           |
|                         |----------------------|                           |
|----------------------------------------------------------------------------|


Top
---
LVS-DG2
(C) SNK 1998
1998.6.5
|----------------------------------------------------------------------------|
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
| TX01A.5    TX01A.13        VT03A.19   VT02A.18   VT01A.17   PR01B.81       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX02A.6    TX02A.14        VT06A.22   VT05A.21   VT04A.20   PR03A.83       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX03A.7    TX03A.15        VT09A.25   VT08A.24   VT07A.23   PR05A.85       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX04A.8    TX04A.16        VT12A.28   VT11A.27   VT10A.26   PR07A.87       |
|                                                                            |
|                                                                            |
|                                                                            |
|                            PR15A.95   PR13A.93   PR11A.91   PR09A.89       |
|                                                                            |
|                                                                            |
|                                                                            |
| SC05A.98  SC06A.100  SP09A.107  SP10A.111  SP11A.115  SP12A.119   SD02A.78 |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
| SC01A.97  SC02A.99   SP01A.105  SP02A.109  SP03A.113  SP04A.117   SD01A.77 |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|----------------------------------------------------------------------------|

Bottom
------
LVS-DG2
|----------------------------------------------------------------------------|
|                         |----------------------|                           |
|                         |----------------------|                           |
|                                                                            |
|                                                                            |
| SC03A.101 SC04A.103  SP13A.108  SP14A.112  SP15A.116  SP16A.120   SD03A.79 |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
|                                                                            |
| SC07A.102  SC08A.104  SP05A.106  SP06A.110  SP07A.114  SP08A.118  SD04A.80 |
|                                                                            |
|                                                                            |
|                                                                            |
|                            PR16A.96   PR14A.94   PR12A.92   PR10A.90       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX04A.4    TX04A.12        VT24A.40   VT23A.39   VT22A.38   PR08A.88       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX03A.3    TX03A.11        VT21A.37   VT20A.36   VT19A.35   PR06A.86       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX02A.2    TX02A.10        VT18A.34   VT17A.33   VT16A.32   PR04A.84       |
|                                                                            |
|                                                                            |
|                                                                            |
| TX01A.1    TX01A.9         VT15A.31   VT14A.30   VT13A.29   PR02B.82       |
|                                                                            |
|                                                                            |
|                         |----------------------|                           |
|                         |----------------------|                           |
|----------------------------------------------------------------------------|
 Notes:
      Not all ROM positions are populated, check the source for exact ROM usage.
      ROMs are mirrored. i.e. TX/PR/SP/SC etc ROMs line up on both sides of the PCB.
      There are 4 copies of each TX ROM on the PCB.


----

info from Daemon

There are various types of neogeo64 boards:
FIGHTING (revision 1 & 2), RACING, SHOOTING, and SAMURAI SHODOWN ONLY (Korean)
(MACHINE CODE ERROR): Is given when you try to put a "RACING GAME" on a "FIGHTING" board.

FIGHTING boards will ONLY play fighting games.

RACING boards will ONLY play racing games (and you need the extra gimmicks
to connect analog wheel and pedals, otherwise it gives you yet another
error).

Shooter boards will only work with Beast Busters 2.

And the Korean board only plays Samurai Shodown games (wont play Buriki One
or Fatal Fury for example).
*/

#define MASTER_CLOCK 50000000
#include "emu.h"
#include "cpu/z80/z80.h"
#include "cpu/nec/nec.h"
#include "cpu/mips/mips3.h"
#include "machine/nvram.h"
#include "includes/hng64.h"

/* TODO: NOT measured! */
#define PIXEL_CLOCK			((MASTER_CLOCK*2)/4) // x 2 is due of the interlaced screen ...

#define HTOTAL				(0x200+0x100)
#define HBEND				(0)
#define HBSTART				(0x200)

#define VTOTAL				(264*2)
#define VBEND				(0)
#define VBSTART				(224*2)


#ifdef UNUSED_FUNCTION
WRITE32_HANDLER( trap_write )
{
    logerror("Remapped write... %08x %08x\n",offset,data);
}

static READ32_HANDLER( hng64_random_read )
{
	return space->machine().rand()&0xffffffff;
}
#endif

static READ32_HANDLER( hng64_com_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	logerror("com read  (PC=%08x): %08x %08x = %08x\n", cpu_get_pc(&space->device()), (offset*4)+0xc0000000, mem_mask, state->m_com_ram[offset]);
	return state->m_com_ram[offset];
}

static WRITE32_HANDLER( hng64_com_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	logerror("com write (PC=%08x): %08x %08x = %08x\n", cpu_get_pc(&space->device()), (offset*4)+0xc0000000, mem_mask, data);
	COMBINE_DATA(&state->m_com_ram[offset]);
}

static WRITE32_HANDLER( hng64_com_share_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	logerror("commw  (PC=%08x): %08x %08x %08x\n", cpu_get_pc(&space->device()), data, (offset*4)+0xc0001000, mem_mask);

	if (offset == 0x0) COMBINE_DATA(&state->m_com_shared_a);
	if (offset == 0x1) COMBINE_DATA(&state->m_com_shared_b);
}

static READ32_HANDLER( hng64_com_share_r )
{
	logerror("commr  (PC=%08x): %08x %08x\n", cpu_get_pc(&space->device()), (offset*4)+0xc0001000, mem_mask);

	//if(offset == 0x0) return state->m_com_shared_a;
	//if(offset == 0x1) return state->m_com_shared_b;

	if(offset==0x0) return 0x0000aaaa;
	if(offset==0x1)	return 0x00030000;		// fatfurwa : at bfc06624 it wants a 01 : at bfc06650 it wants a 02

	return 0x00;
}

static WRITE32_HANDLER( hng64_pal_w )
{
	UINT32 *paletteram = space->machine().generic.paletteram.u32;
	int r, g, b/*, a*/;

	COMBINE_DATA(&paletteram[offset]);

	b = ((paletteram[offset] & 0x000000ff) >>0);
	g = ((paletteram[offset] & 0x0000ff00) >>8);
	r = ((paletteram[offset] & 0x00ff0000) >>16);
	//a = ((paletteram[offset] & 0xff000000) >>24);
	palette_set_color(space->machine(),offset,MAKE_RGB(r,g,b));
}

static READ32_HANDLER( hng64_sysregs_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	system_time systime;

	space->machine().base_datetime(systime);

#if 0
	if((offset*4) != 0x1084)
		printf("HNG64 port read (PC=%08x) 0x%08x\n", cpu_get_pc(&space->device()), offset*4);
#endif

	switch(offset*4)
	{
		case 0x001c: return space->machine().rand(); // hng64 hangs on start-up if zero.
		//case 0x106c:
		//case 0x107c:
		case 0x1084: return 0x00000002; //MCU->MIPS latch port
		//case 0x108c:
		case 0x1104: return state->m_interrupt_level_request;
		case 0x1254: return 0x00000000; //dma status, 0x800
		/* 4-bit RTC */
		case 0x2104: return (systime.local_time.second % 10);
		case 0x210c: return (systime.local_time.second / 10);
		case 0x2114: return (systime.local_time.minute % 10);
		case 0x211c: return (systime.local_time.minute / 10);
		case 0x2124: return (systime.local_time.hour % 10);
		case 0x212c: return (systime.local_time.hour / 10);
		case 0x2134: return (systime.local_time.mday % 10);
		case 0x213c: return (systime.local_time.mday / 10);
		case 0x2144: return ((systime.local_time.month+1) % 10);
		case 0x214c: return ((systime.local_time.month+1) / 10);
		case 0x2154: return (systime.local_time.year%10);
		case 0x215c: return ((systime.local_time.year%100)/10);
		case 0x2164: return (systime.local_time.weekday);

		case 0x216c: return 0x00000010; //disables "system log reader"

		case 0x217c: return 0; //RTC status?
	}

//  printf("%08x\n",offset*4);

//  return space->machine().rand()&0xffffffff;
	return state->m_sysregs[offset];
}

/* preliminary dma code, dma is used to copy program code -> ram */
static void hng64_do_dma(address_space *space)
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	//printf("Performing DMA Start %08x Len %08x Dst %08x\n", state->m_dma_start, state->m_dma_len, state->m_dma_dst);

	while (state->m_dma_len >= 0)
	{
		UINT32 dat;

		dat = space->read_dword(state->m_dma_start);
		space->write_dword(state->m_dma_dst, dat);
		state->m_dma_start += 4;
		state->m_dma_dst += 4;
		state->m_dma_len--;
	}
}

/*
//  AM_RANGE(0x1F70100C, 0x1F70100F) AM_WRITENOP        // ?? often
//  AM_RANGE(0x1F70101C, 0x1F70101F) AM_WRITENOP        // ?? often
//  AM_RANGE(0x1F70106C, 0x1F70106F) AM_WRITENOP        // fatfur,strange
//  AM_RANGE(0x1F701084, 0x1F701087) AM_RAM
//  AM_RANGE(0x1F70111C, 0x1F70111F) AM_WRITENOP        // irq ack

//  AM_RANGE(0x1F70124C, 0x1F70124F) AM_WRITENOP        // dma related?
//  AM_RANGE(0x1F70125C, 0x1F70125F) AM_WRITENOP        // dma related?
//  AM_RANGE(0x1F7021C4, 0x1F7021C7) AM_WRITENOP        // ?? often
*/

static WRITE32_HANDLER( hng64_sysregs_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	COMBINE_DATA (&state->m_sysregs[offset]);

#if 0
	if(((offset*4) & 0x1200) == 0x1200)
		printf("HNG64 writing to SYSTEM Registers 0x%08x == 0x%08x. (PC=%08x)\n", offset*4, state->m_sysregs[offset], cpu_get_pc(&space->device()));
#endif

	switch(offset*4)
	{
		//case 0x100c: *DOCUMENT*

		case 0x1084: //MIPS->MCU latch port
			state->m_mcu_en = (data & 0xff); //command-based, i.e. doesn't control halt line and such?
			//printf("HNG64 writing to SYSTEM Registers 0x%08x == 0x%08x. (PC=%08x)\n", offset*4, state->m_sysregs[offset], cpu_get_pc(&space->device()));
			break;
		case 0x111c: /*irq ack */ break;
		case 0x1204: state->m_dma_start = state->m_sysregs[offset]; break;
		case 0x1214: state->m_dma_dst = state->m_sysregs[offset]; break;
		case 0x1224:
			state->m_dma_len = state->m_sysregs[offset];
			hng64_do_dma(space);
			break;
		//default:
			//printf("HNG64 writing to SYSTEM Registers 0x%08x == 0x%08x. (PC=%08x)\n", offset*4, state->m_sysregs[offset], cpu_get_pc(&space->device()));
	}
}

/**************************************
* MCU simulations
**************************************/

/* Fatal Fury Wild Ambition / Buriki One */
static READ32_HANDLER( fight_io_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	switch (offset*4)
	{
		case 0x000: return 0x00000400;
		case 0x004: return input_port_read(space->machine(), "SYSTEM");
		case 0x008: return input_port_read(space->machine(), "P1_P2");
		case 0x600: return state->m_no_machine_error_code;
	}

	return state->m_dualport[offset];
}

/* Samurai Shodown 64 / Samurai Shodown 64 2 */
static READ32_HANDLER( samsho_io_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	switch (offset*4)
	{
        case 0x000:
		{
			/* this is used on post by the io mcu to signal that a init task is complete, zeroed otherwise. */
			//popmessage("%04x", state->m_mcu_fake_time);

			if(state->m_mcu_fake_time < 0x100)
				state->m_mcu_fake_time++;

			if(state->m_mcu_fake_time < 0x80) //i/o init 1
				return 0x300;
			else if(state->m_mcu_fake_time < 0x100)//i/o init 2
				return 0x400;
			else
				return 0x000;
		}
		case 0x004: return input_port_read(space->machine(), "SYSTEM");
		case 0x008: return input_port_read(space->machine(), "P1_P2");
		case 0x600: return state->m_no_machine_error_code;
	}

	return state->m_dualport[offset];
}

/* Beast Busters 2 */
/* FIXME: trigger input doesn't work? */
static READ32_HANDLER( shoot_io_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	switch (offset*4)
	{
        case 0x000:
        {
			if(state->m_mcu_fake_time < 0x100)//i/o init
			{
				state->m_mcu_fake_time++;
				return 0x400;
			}
			else
				return 0x000;
		}
		case 0x010:
		{
			/* Quick kludge for use the input test items */
			if(input_port_read(space->machine(), "D_IN") & 0x01000000)
				state->m_p1_trig = space->machine().rand() & 0x01000000;

			return (input_port_read(space->machine(), "D_IN") & ~0x01000000) | (state->m_p1_trig);
		}
		case 0x018:
		{
			UINT8 p1_x, p1_y, p2_x, p2_y;
			p1_x = input_port_read(space->machine(), "LIGHT_P1_X") & 0xff;
			p1_y = input_port_read(space->machine(), "LIGHT_P1_Y") & 0xff;
			p2_x = input_port_read(space->machine(), "LIGHT_P2_X") & 0xff;
			p2_y = input_port_read(space->machine(), "LIGHT_P2_Y") & 0xff;

			return p1_x<<24 | p1_y<<16 | p2_x<<8 | p2_y;
		}
		case 0x01c:
		{
			UINT8 p3_x, p3_y;
			p3_x = input_port_read(space->machine(), "LIGHT_P3_X") & 0xff;
			p3_y = input_port_read(space->machine(), "LIGHT_P3_Y") & 0xff;

			return p3_x<<24 | p3_y<<16 | p3_x<<8 | p3_y; //FIXME: see what's the right bank here when the trigger works
		}
		case 0x600: return state->m_no_machine_error_code;
	}

	return state->m_dualport[offset];
}

/* Roads Edge / Xtreme Rally */
static READ32_HANDLER( racing_io_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	switch (offset*4)
	{
        case 0x000:
        {
			if(state->m_mcu_fake_time < 0x100)//i/o init
			{
				state->m_mcu_fake_time++;
				return 0x400;
			}
			else
				return 0x000;
		}
		case 0x004: return input_port_read(space->machine(), "SYSTEM");
		case 0x008: return input_port_read(space->machine(), "P1_P2");
		case 0x600: return state->m_no_machine_error_code;
	}

	return state->m_dualport[offset];
}

static READ32_HANDLER( hng64_dualport_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	//printf("dualport R %08x %08x (PC=%08x)\n", offset*4, hng64_dualport[offset], cpu_get_pc(&space->device()));

	/*
    command table:
    0x0b = ? mode input polling (sams64, bbust2, sams64_2 & roadedge) (*)
    0x0c = cut down connections, treats the dualport to be normal RAM
    0x11 = ? mode input polling (fatfurwa, xrally, buriki) (*)
    0x20 = asks for MCU machine code

    (*) 0x11 is followed by 0x0b if the latter is used, JVS-esque indirect/direct mode?
    */
	if (state->m_mcu_en == 0x0c)
		return state->m_dualport[offset];

	switch (state->m_mcu_type)
	{
		case FIGHT_MCU:  return fight_io_r(space, offset,0xffffffff);
		case SHOOT_MCU:  return shoot_io_r(space, offset,0xffffffff);
		case RACING_MCU: return racing_io_r(space, offset,0xffffffff);
		case SAMSHO_MCU: return samsho_io_r(space, offset,0xffffffff);
	}

	return state->m_dualport[offset];
}

/*
Beast Busters 2 outputs (all at offset == 0x1c):
0x00000001 start #1
0x00000002 start #2
0x00000004 start #3
0x00001000 gun #1
0x00002000 gun #2
0x00004000 gun #3
*/

static WRITE32_HANDLER( hng64_dualport_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	//printf("dualport WRITE %08x %08x (PC=%08x)\n", offset*4, hng64_dualport[offset], cpu_get_pc(&space->device()));
	COMBINE_DATA (&state->m_dualport[offset]);
}


// Hardware calls these '3d buffers'
//   They're only read during the startup check of fatfurwa.  Z-buffer memory?  Front buffer, back buffer?
//   They're definitely mirrored in the startup test.  Elsemi says:
//   <ElSemi> 30100000-3011ffff is framebuffer A0
//   <ElSemi> 30120000-3013ffff is framebuffer A1
//   <ElSemi> 30140000-3015ffff is ZBuffer A
static READ32_HANDLER( hng64_3d_1_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	return state->m_3d_1[offset];
}

#ifdef UNUSED_FUNCTION
WRITE32_HANDLER( hng64_3d_1_w )
{
	fatalerror("WRITE32_HANDLER( hng64_3d_1_w )");
}
#endif

static READ32_HANDLER( hng64_3d_2_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	return state->m_3d_2[offset];
}

static WRITE32_HANDLER( hng64_3d_2_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	COMBINE_DATA (&state->m_3d_1[offset]);
	COMBINE_DATA (&state->m_3d_2[offset]);
}

// The 3d 'display list'
static WRITE32_HANDLER( dl_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	UINT32 *hng64_dl = state->m_dl;
	int i;
	UINT16 packet3d[16];

	COMBINE_DATA(&hng64_dl[offset]);

	if (offset == 0x08 || offset == 0x7f ||	// Special buggers.
		offset == 0x10 || offset == 0x18 ||
		offset == 0x20 || offset == 0x28 ||
		offset == 0x30 || offset == 0x38 ||
		offset == 0x40 || offset == 0x48 ||
		offset == 0x50 || offset == 0x58 ||
		offset == 0x60 || offset == 0x68 ||
		offset == 0x70 || offset == 0x78)
	{
		// Create a 3d packet
		UINT16 packetStart = offset - 0x08;
		if (offset == 0x7f) packetStart += 1;

		for (i = 0; i < 0x08; i++)
		{
			packet3d[i*2+0] = (hng64_dl[packetStart+i] & 0xffff0000) >> 16;
			packet3d[i*2+1] = (hng64_dl[packetStart+i] & 0x0000ffff);
		}

		// Send it off to the 3d subsystem.
		hng64_command3d(space->machine(), packet3d);
	}
}

#if 0
static READ32_HANDLER( dl_r )
{
	//mame_printf_debug("dl R (%08x) : %x %x\n", cpu_get_pc(&space->device()), offset, hng64_dl[offset]);
	//usrintf_showmessage("dl R (%08x) : %x %x", cpu_get_pc(&space->device()), offset, hng64_dl[offset]);
	return hng64_dl[offset];
}
#endif

// Some kind of buffering of the display lists, or 'render current buffer' write?
static WRITE32_HANDLER( dl_control_w )
{
//  printf("\n");   // Debug - ajg
	// TODO: put this back in.
	/*
    if (activeBuffer==0 || activeBuffer==1)
        memcpy(&hng64_dls[activeBuffer][0],&hng64_dl[0],0x200);

    // Only if it's VALID (hack)
    if (data & 1)
        activeBuffer = 0;
    if (data & 2)
        activeBuffer = 1;
    */
}

#ifdef UNUSED_FUNCTION
WRITE32_HANDLER( activate_3d_buffer )
{
    COMBINE_DATA (&active_3d_buffer[offset]);
    mame_printf_debug("COMBINED %d\n", active_3d_buffer[offset]);
}
#endif

// Transition Control memory.
static WRITE32_HANDLER( tcram_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	UINT32 *hng64_tcram = state->m_tcram;

	COMBINE_DATA (&hng64_tcram[offset]);

	if(offset == 0x02)
	{
		UINT16 min_x, min_y, max_x, max_y;
		rectangle visarea = space->machine().primary_screen->visible_area();

		min_x = (hng64_tcram[1] & 0xffff0000) >> 16;
		min_y = (hng64_tcram[1] & 0x0000ffff) >> 0;
		max_x = (hng64_tcram[2] & 0xffff0000) >> 16;
		max_y = (hng64_tcram[2] & 0x0000ffff) >> 0;

		if(max_x == 0 || max_y == 0) // bail out if values are invalid, Fatal Fury WA sets this to disable the screen.
		{
			state->m_screen_dis = 1;
			return;
		}

		state->m_screen_dis = 0;

		visarea.set(min_x, min_x + max_x - 1, min_y, min_y + max_y - 1);
		space->machine().primary_screen->configure(HTOTAL, VTOTAL, visarea, space->machine().primary_screen->frame_period().attoseconds );
	}
}

static READ32_HANDLER( tcram_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	//printf("Q1 R : %.8x %.8x\n", offset, hng64_tcram[offset]);
	if(offset == 0x12)
		return input_port_read(space->machine(), "VBLANK");

	return state->m_tcram[offset];
}

/* Some games (namely sams64 after the title screen) tests bit 15 of this to be high,
   unknown purpose (vblank? related to the display list?). */
static READ32_HANDLER( unk_vreg_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	return ++state->m_unk_vreg_toggle;
}


static WRITE32_HANDLER( hng64_soundram_w )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	UINT32 mem_mask32 = mem_mask;
	UINT32 data32 = data;

	/* swap data around.. keep the v55 happy */
	data = data32 >> 16;
	data = FLIPENDIAN_INT16(data);
	mem_mask = mem_mask32 >> 16;
	mem_mask = FLIPENDIAN_INT16(mem_mask);
	COMBINE_DATA(&state->m_soundram[offset * 2 + 0]);

	data = data32 & 0xffff;
	data = FLIPENDIAN_INT16(data);
	mem_mask = mem_mask32 & 0xffff;
	mem_mask = FLIPENDIAN_INT16(mem_mask);
	COMBINE_DATA(&state->m_soundram[offset * 2 + 1]);
}

static READ32_HANDLER( hng64_soundram_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	UINT16 datalo = state->m_soundram[offset * 2 + 0];
	UINT16 datahi = state->m_soundram[offset * 2 + 1];

	return FLIPENDIAN_INT16(datahi) | (FLIPENDIAN_INT16(datalo) << 16);
}

/* The following is guesswork, needs confirmation with a test on the real board. */
static WRITE32_HANDLER( hng64_sprite_clear_even_w )
{
	UINT32 spr_offs;

	spr_offs = (offset) * 0x10 * 4;

	if(ACCESSING_BITS_16_31)
	{
		space->write_dword(0x20000000+0x00+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x08+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x10+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x18+0x00+spr_offs, 0x00000000);
	}
	if(ACCESSING_BITS_8_15)
	{
		space->write_dword(0x20000000+0x00+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x08+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x10+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x18+0x20+spr_offs, 0x00000000);
	}
}

static WRITE32_HANDLER( hng64_sprite_clear_odd_w )
{
	UINT32 spr_offs;

	spr_offs = (offset) * 0x10 * 4;

	if(ACCESSING_BITS_16_31)
	{
		space->write_dword(0x20000000+0x04+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x0c+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x14+0x00+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x1c+0x00+spr_offs, 0x00000000);
	}
	if(ACCESSING_BITS_0_15)
	{
		space->write_dword(0x20000000+0x04+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x0c+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x14+0x20+spr_offs, 0x00000000);
		space->write_dword(0x20000000+0x1c+0x20+spr_offs, 0x00000000);
	}
}

/*
<ElSemi> 0xE0000000 sound
<ElSemi> 0xD0100000 3D bank A
<ElSemi> 0xD0200000 3D bank B
<ElSemi> 0xC0000000-0xC000C000 Sprite
<ElSemi> 0xC0200000-0xC0204000 palette
<ElSemi> 0xC0100000-0xC0180000 Tilemap
<ElSemi> 0xBF808000-0xBF808800 Dualport ram
<ElSemi> 0xBF800000-0xBF808000 S-RAM
<ElSemi> 0x60000000-0x60001000 Comm dualport ram
*/
static ADDRESS_MAP_START( hng_map, AS_PROGRAM, 32 )

	AM_RANGE(0x00000000, 0x00ffffff) AM_RAM AM_BASE_MEMBER(hng64_state, m_mainram)
	AM_RANGE(0x04000000, 0x05ffffff) AM_WRITENOP AM_ROM AM_REGION("user3", 0) AM_BASE_MEMBER(hng64_state, m_cart)

	// Ports
	AM_RANGE(0x1f700000, 0x1f702fff) AM_READWRITE(hng64_sysregs_r, hng64_sysregs_w) AM_BASE_MEMBER(hng64_state, m_sysregs)

	// SRAM.  Coin data, Player Statistics, etc.
	AM_RANGE(0x1F800000, 0x1F803fff) AM_RAM AM_SHARE("nvram")

	// Dualport RAM
	AM_RANGE(0x1F808000, 0x1F8087ff) AM_READWRITE(hng64_dualport_r, hng64_dualport_w) AM_BASE_MEMBER(hng64_state, m_dualport)

	// BIOS
	AM_RANGE(0x1fc00000, 0x1fc7ffff) AM_WRITENOP AM_ROM AM_REGION("user1", 0) AM_BASE_MEMBER(hng64_state, m_rombase)

	// Video
	AM_RANGE(0x20000000, 0x2000bfff) AM_RAM AM_BASE_MEMBER(hng64_state, m_spriteram)
	AM_RANGE(0x2000d800, 0x2000e3ff) AM_WRITE(hng64_sprite_clear_even_w)
	AM_RANGE(0x2000e400, 0x2000efff) AM_WRITE(hng64_sprite_clear_odd_w)
	AM_RANGE(0x20010000, 0x20010013) AM_RAM AM_BASE_MEMBER(hng64_state, m_spriteregs)
	AM_RANGE(0x20100000, 0x2017ffff) AM_RAM_WRITE(hng64_videoram_w) AM_BASE_MEMBER(hng64_state, m_videoram)	// Tilemap
	AM_RANGE(0x20190000, 0x20190037) AM_RAM AM_BASE_MEMBER(hng64_state, m_videoregs)
	AM_RANGE(0x20200000, 0x20203fff) AM_RAM_WRITE(hng64_pal_w) AM_BASE_GENERIC(paletteram)
	AM_RANGE(0x20208000, 0x2020805f) AM_READWRITE(tcram_r, tcram_w) AM_BASE_MEMBER(hng64_state, m_tcram)	// Transition Control
	AM_RANGE(0x20300000, 0x203001ff) AM_RAM_WRITE(dl_w) AM_BASE_MEMBER(hng64_state, m_dl)	// 3d Display List
//  AM_RANGE(0x20300200, 0x20300213) AM_RAM_WRITE(xxxx) AM_BASE_MEMBER(hng64_state, m_xxxxxxxx)  // 3d Display List Upload?
	AM_RANGE(0x20300214, 0x20300217) AM_WRITE(dl_control_w)
	AM_RANGE(0x20300218, 0x2030021b) AM_READ(unk_vreg_r)

	// 3d?
	AM_RANGE(0x30000000, 0x3000002f) AM_RAM AM_BASE_MEMBER(hng64_state, m_3dregs)
	AM_RANGE(0x30100000, 0x3015ffff) AM_READWRITE(hng64_3d_1_r, hng64_3d_2_w) AM_BASE_MEMBER(hng64_state, m_3d_1)	// 3D Display Buffer A
	AM_RANGE(0x30200000, 0x3025ffff) AM_READWRITE(hng64_3d_2_r, hng64_3d_2_w) AM_BASE_MEMBER(hng64_state, m_3d_2)	// 3D Display Buffer B

	// Sound
	AM_RANGE(0x60000000, 0x601fffff) AM_RAM												// Sound ??
	AM_RANGE(0x60200000, 0x603fffff) AM_READWRITE(hng64_soundram_r, hng64_soundram_w)	// uploads the v53 sound program here, elsewhere on ss64-2

	// These are sound ports of some sort
//  AM_RANGE(0x68000000, 0x68000003) AM_WRITENOP    // ??
//  AM_RANGE(0x68000004, 0x68000007) AM_READNOP     // ??
//  AM_RANGE(0x68000008, 0x6800000b) AM_WRITENOP    // ??
//  AM_RANGE(0x6f000000, 0x6f000003) AM_WRITENOP    // halt / reset line for the sound CPU

	// Communications
	AM_RANGE(0xc0000000, 0xc0000fff) AM_READWRITE(hng64_com_r, hng64_com_w) AM_BASE_MEMBER(hng64_state, m_com_ram)
	AM_RANGE(0xc0001000, 0xc0001007) AM_READWRITE(hng64_com_share_r, hng64_com_share_w)

	/* 6e000000-6fffffff */
	/* 80000000-81ffffff */
	/* 88000000-89ffffff */
	/* 90000000-97ffffff */
	/* 98000000-9bffffff */
	/* a0000000-a3ffffff */
ADDRESS_MAP_END

/**************/
/** COMM CPU **/
/**************/
#define KL5C_MMU_A(xxx) ( (xxx == 0) ? 0x0000 : (state->m_com_mmu_mem[((xxx-1)*2)+1] << 2) | ((state->m_com_mmu_mem[(xxx-1)*2] & 0xc0) >> 6) )
#define KL5C_MMU_B(xxx) ( (xxx == 0) ? 0x0000 : (state->m_com_mmu_mem[(xxx-1)*2] & 0x3f) )

DIRECT_UPDATE_HANDLER( KL5C80_direct_handler )
{
	hng64_state *state = machine.driver_data<hng64_state>();

	direct.explicit_configure(0x0000, 0xffff, 0xffff, state->m_com_op_base);
	return ~0;
}

static UINT32 KL5C80_translate_address(hng64_state *state, UINT16 vAddr)
{
	int i;
	UINT8 bNum = 4;

	/* Determine what B the vAddr is in */
	for (i = 1; i < 5; i++)
	{
		if ( ((KL5C_MMU_B(i)+1)*0x400) > vAddr)
		{
			bNum = i-1;
			break;
		}
	}

	/* Calculate the full address and return */
	if (bNum == 0)
	{
		return vAddr;
	}
	else
	{	/* the offset to the base physical address plus the vAddr's offset from the virtual base */
		return ((KL5C_MMU_A(bNum) + (KL5C_MMU_B(bNum)+1)) * 0x400) + (vAddr - ((KL5C_MMU_B(bNum)+1) * 0x400));
	}
}

static void KL5C80_virtual_mem_sync(hng64_state *state)
{
	/* The KL5C80 maps each progressive chunk from the beginning of the
       virtual region until the beginning of the next virtual region.
       This is implemented here in a lame way to simplify the code.  */

	int i,region;

	for (region = 0; region < 5; region++)
	{
		int logical_offset  = (KL5C_MMU_B(region)+1) * 0x400;
		int physical_offset = (KL5C_MMU_A(region) + (KL5C_MMU_B(region)+1)) * 0x400;

		/* The first MMU region is a special case */
		if (region == 0)
		{
			logical_offset  = 0x0000;
			physical_offset = 0x00000;
		}

		logerror("Now copying 0x%x to 0x%x\n", physical_offset, logical_offset);
		for (i = logical_offset; i <= 0xffff; i++)
		{
			if (physical_offset+i <= 0xfffff)
				state->m_com_op_base[i] = state->m_com_virtual_mem[physical_offset+i];
		}
	}
}

static void KL5C80_init(hng64_state *state)
{
	UINT8 *hng64_com_mmu_mem = state->m_com_mmu_mem;

	/* init the MMU */
	hng64_com_mmu_mem[0] =
	hng64_com_mmu_mem[2] =
	hng64_com_mmu_mem[4] =
	hng64_com_mmu_mem[6] = 0x3f;

	hng64_com_mmu_mem[1] =
	hng64_com_mmu_mem[3] =
	hng64_com_mmu_mem[5] = 0x00;
	hng64_com_mmu_mem[7] = 0xf0;
}

static READ8_HANDLER( hng64_comm_memory_r )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();
	UINT32 physical_address = KL5C80_translate_address(state, offset);
	logerror("READING 0x%02x from 0x%04x (0x%05x)\n", state->m_com_virtual_mem[physical_address], offset, physical_address);

	/* Custom "virtual" memory map */
	if (physical_address >= 0x26000 && physical_address <= 0x28000)
	{
		/* May very well be shared memory - it reads 16 bits from it at 0x309 */
	}


	return state->m_com_virtual_mem[physical_address];
}

static WRITE8_HANDLER( hng64_comm_memory_w )
{
	// Write to both virtual and physical memory
//  UINT32 physical_address = KL5C80_translate_address(offset);
//  logerror("WRITING 0x%02x to 0x%04x (0x%05x)\n", hng64_com_virtual_mem[physical_address], offset, physical_address);
}

/* KL5C80 I/O handlers */
static WRITE8_HANDLER( hng64_comm_io_mmu )
{
	hng64_state *state = space->machine().driver_data<hng64_state>();

	state->m_com_mmu_mem[offset] = data;

	/* Debugging - you can't change A4 - the hardware doesn't let you */
	if (state->m_com_mmu_mem[7] != 0xf0 || ((state->m_com_mmu_mem[6] & 0xc0) != 0x00))
		logerror("KL5C MMU error !!! Code is trying to change A4!\n");

	logerror("COMM CPU MMU WRITE : ");
	logerror("B : %02x %02x %02x %02x  A : %03x %03x %03x %03x\n", KL5C_MMU_B(1), KL5C_MMU_B(2), KL5C_MMU_B(3), KL5C_MMU_B(4),
																   KL5C_MMU_A(1), KL5C_MMU_A(2), KL5C_MMU_A(3), KL5C_MMU_A(4));
	KL5C80_virtual_mem_sync(state);
}

#ifdef UNUSED_FUNCTION
READ8_HANDLER( hng64_comm_shared_r )
{
    // I'm thinking 0x54 comes from an interrupt on the MIPS CPU?  Or maybe the Toshiba one?
    // Nothing from CPU0 seems to ping the COM CPU as often as it reads 0x54.
    // Sometimes it wants 0x54 to be a 0x01 and sometimes it wants a 0x02.

    // It's not an interrupt on the KL5C80 because they aren't enabled before 0x54 is ping'ed
    // There is a special onboard interrupt handler for the KL5C80 though...

    if (offset==0x00) logerror("COM CPU reading from 0x50.\n");
    if (offset==0x01) logerror("COM CPU reading from 0x51.\n");
    if (offset==0x02) logerror("COM CPU reading from 0x52.\n");
    if (offset==0x03) logerror("COM CPU reading from 0x53.\n");
    if (offset==0x04) (hng64_com_shared_b & 0x000000ff) ? return 0xff : return 0x00;
}

WRITE8_HANDLER( hng64_comm_shared_w )
{
    if (offset==0x00) hng64_com_shared_a = (hng64_com_shared_a & 0x00ffffff) | (data << 24);
    if (offset==0x01) hng64_com_shared_a = (hng64_com_shared_a & 0xff00ffff) | (data << 16);
    if (offset==0x02) hng64_com_shared_a = (hng64_com_shared_a & 0xffff00ff) | (data <<  8);
    if (offset==0x03) hng64_com_shared_a = (hng64_com_shared_a & 0xffffff00) | (data <<  0);
    if (offset==0x04) logerror("COM CPU writing to 0x54.\n");

    logerror("COM CPU wrote to com_shared_a : %08x\n", hng64_com_shared_a);
}
#endif

static ADDRESS_MAP_START( hng_comm_map, AS_PROGRAM, 8 )
	AM_RANGE(0x0000,0xffff) AM_READWRITE( hng64_comm_memory_r, hng64_comm_memory_w )
ADDRESS_MAP_END

static ADDRESS_MAP_START( hng_comm_io_map, AS_IO, 8 )
	ADDRESS_MAP_GLOBAL_MASK(0xff)
	/* Reserved for the KL5C80 internal hardware */
	AM_RANGE(0x00, 0x07) AM_WRITE( hng64_comm_io_mmu ) AM_BASE_MEMBER(hng64_state, m_com_mmu_mem)
//  AM_RANGE(0x08,0x1f) AM_NOP              /* Reserved */
//  AM_RANGE(0x20,0x25) AM_READWRITE        /* Timer/Counter B */           /* hng64 writes here */
//  AM_RANGE(0x27,0x27) AM_NOP              /* Reserved */
//  AM_RANGE(0x28,0x2b) AM_READWRITE        /* Timer/Counter A */           /* hng64 writes here */
//  AM_RANGE(0x2c,0x2f) AM_READWRITE        /* Parallel port A */
//  AM_RANGE(0x30,0x33) AM_READWRITE        /* Parallel port B */
//  AM_RANGE(0x34,0x37) AM_READWRITE        /* Interrupt controller */      /* hng64 writes here */
//  AM_RANGE(0x38,0x39) AM_READWRITE        /* Serial port */               /* hng64 writes here */
//  AM_RANGE(0x3a,0x3b) AM_READWRITE        /* System control register */   /* hng64 writes here */
//  AM_RANGE(0x3c,0x3f) AM_NOP              /* Reserved */

	/* General IO */
	AM_RANGE(0x50,0x54) AM_NOP // AM_WRITE(hng64_comm_shared_r, hng64_comm_shared_w)
//  AM_RANGE(0x72,0x72) AM_WRITE            /* dunno yet */
ADDRESS_MAP_END


static ADDRESS_MAP_START( hng_sound_map, AS_PROGRAM, 16 )
	AM_RANGE(0x00000, 0x3ffff) AM_ROMBANK("bank2")
	AM_RANGE(0xe0000, 0xfffff) AM_ROMBANK("bank1")
ADDRESS_MAP_END


static INPUT_PORTS_START( hng64 )
	PORT_START("VBLANK")
	PORT_BIT( 0xffffffff, IP_ACTIVE_HIGH, IPT_VBLANK )

	PORT_START("IPT_TEST")
	PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_CODE( KEYCODE_Q )
	PORT_BIT( 0x0800, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x1000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x4000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_UNKNOWN )

	PORT_START("SYSTEM")
	PORT_BIT( 0x0000ffff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00010000, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x00020000, IP_ACTIVE_HIGH, IPT_COIN2 )
	PORT_BIT( 0x00040000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00080000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00100000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00200000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00400000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00800000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x01000000, IP_ACTIVE_HIGH, IPT_SERVICE1 )
	PORT_BIT( 0x02000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x04000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x08000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x10000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x20000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x40000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x80000000, IP_ACTIVE_HIGH, IPT_SERVICE )

	PORT_START("P1_P2")
	PORT_BIT( 0x00000001, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
	PORT_BIT( 0x00000002, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
	PORT_BIT( 0x00000004, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
	PORT_BIT( 0x00000008, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
	PORT_BIT( 0x00000010, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x00000020, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x00000040, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2)
	PORT_BIT( 0x00000080, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(2)
	PORT_BIT( 0x00000100, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00000200, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00000400, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00000800, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00001000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00002000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00004000, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x00008000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x00010000, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
	PORT_BIT( 0x00020000, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
	PORT_BIT( 0x00040000, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
	PORT_BIT( 0x00080000, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
	PORT_BIT( 0x00100000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
	PORT_BIT( 0x00200000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)
	PORT_BIT( 0x00400000, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1)
	PORT_BIT( 0x00800000, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_PLAYER(1)
	PORT_BIT( 0x01000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x02000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x04000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x08000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x10000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x20000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x40000000, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x80000000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
INPUT_PORTS_END

static INPUT_PORTS_START( bbust2 )
	PORT_START("VBLANK")
	PORT_BIT( 0xffffffff, IP_ACTIVE_HIGH, IPT_VBLANK )

	PORT_START("D_IN")
	PORT_BIT( 0x000000ff, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x00000100, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x00000200, IP_ACTIVE_HIGH, IPT_COIN2 )
	PORT_BIT( 0x00000400, IP_ACTIVE_HIGH, IPT_COIN3 )
	PORT_BIT( 0x00000800, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x00001000, IP_ACTIVE_HIGH, IPT_SERVICE1 )
	PORT_BIT( 0x00002000, IP_ACTIVE_HIGH, IPT_SERVICE2 )
	PORT_BIT( 0x00004000, IP_ACTIVE_HIGH, IPT_SERVICE3 )
	PORT_BIT( 0x00008000, IP_ACTIVE_HIGH, IPT_SERVICE )
	PORT_BIT( 0x00010000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(3) //trigger
	PORT_BIT( 0x00020000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(3) //pump
	PORT_BIT( 0x00040000, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(3) //bomb
	PORT_BIT( 0x00080000, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x00100000, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x00200000, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x00400000, IP_ACTIVE_HIGH, IPT_START3 )
	PORT_BIT( 0x00800000, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x01000000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) //trigger
	PORT_BIT( 0x02000000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) //pump
	PORT_BIT( 0x04000000, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) //bomb
	PORT_BIT( 0x08000000, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x10000000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) //trigger
	PORT_BIT( 0x20000000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) //pump
	PORT_BIT( 0x40000000, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2) //bomb
	PORT_BIT( 0x80000000, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_START("LIGHT_P1_X")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(1)

	PORT_START("LIGHT_P1_Y")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(1)

	PORT_START("LIGHT_P2_X")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(2)

	PORT_START("LIGHT_P2_Y")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(2)

	PORT_START("LIGHT_P3_X")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(3)

	PORT_START("LIGHT_P3_Y")
	PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(25) PORT_KEYDELTA(7) PORT_REVERSE PORT_PLAYER(3)
INPUT_PORTS_END


static const gfx_layout hng64_8x8x4_tilelayout =
{
	8,8,
	RGN_FRAC(1,1),
	4,
	{ 0,1,2,3 },
	{ 24, 28, 8, 12, 16, 20, 0, 4 },
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
	8*32
};

static const gfx_layout hng64_8x8x8_tilelayout =
{
	8,8,
	RGN_FRAC(1,1),
	8,
	{ 0,1,2,3,4,5,6,7 },
	{ 24,     8,     16,     0,
	  256+24, 256+8, 256+16, 256+0 },
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
	16*32
};

static const gfx_layout hng64_16x16x4_tilelayout =
{
	16,16,
	RGN_FRAC(1,1),
	4,
	{ 0,1,2,3 },
	{ 24,     28,     8,     12,     16,     20,     0,     4,
	  256+24, 256+28, 256+8, 256+12, 256+16, 256+20, 256+0, 256+4 },
	{ 0*32,  1*32,  2*32,  3*32,  4*32,  5*32,  6*32,  7*32,
	  16*32, 17*32, 18*32, 19*32, 20*32, 21*32, 22*32, 23*32 },
	32*32
};


static const gfx_layout hng64_16x16x8_tilelayout =
{
	16,16,
	RGN_FRAC(1,1),
	8,
	{ 0,1,2,3,4,5,6,7 },
	{ 24,      8,      16,      0,
	  256+24,  256+8,  256+16,  256+0,
	  1024+24, 1024+8, 1024+16, 1024+0,
	  1280+24, 1280+8, 1280+16, 1280+0, },
	{ 0*32,  1*32,  2*32,  3*32,  4*32,  5*32,  6*32,  7*32,
	  16*32, 17*32, 18*32, 19*32, 20*32, 21*32, 22*32, 23*32 },
	64*32
};

static const gfx_layout hng64_16x16x4_spritelayout =
{
	16,16,
	RGN_FRAC(1,1),
	4,
	{ 0,1,2,3 },
	{ 56, 60, 24, 28, 48, 52, 16, 20, 40, 44, 8, 12, 32, 36, 0, 4 },
	{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64, 8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
	16*64
};

static const gfx_layout hng64_16x16x8_spritelayout =
{
	16,16,
	RGN_FRAC(1,1),
	8,
	{ 0,1,2,3,4,5,6,7 },
	{ 56,      24,      48,      16,      40,      8,      32,      0,
	  1024+56, 1024+24, 1024+48, 1024+16, 1024+40, 1024+8, 1024+32, 1024+0 },
	{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64, 8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
	32*64
};

static const UINT32 texlayout_xoffset[1024] = { STEP1024(0,8) };
static const UINT32 texlayout_yoffset[512] = { STEP512(0,8192) };
static const gfx_layout hng64_texlayout =
{
	1024, 512,
	RGN_FRAC(1,1),
	8,
	{ 0,1,2,3,4,5,6,7 },
	EXTENDED_XOFFS,
	EXTENDED_YOFFS,
	1024*512*8,
	texlayout_xoffset,
	texlayout_yoffset
};


static GFXDECODE_START( hng64 )

	/* tilemap tiles */
	GFXDECODE_ENTRY( "scrtile", 0, hng64_8x8x4_tilelayout,  0x0, 0x100 )
	GFXDECODE_ENTRY( "scrtile", 0, hng64_8x8x8_tilelayout,  0x0, 0x10 )
	GFXDECODE_ENTRY( "scrtile", 0, hng64_16x16x4_tilelayout,0x0, 0x100 )
	GFXDECODE_ENTRY( "scrtile", 0, hng64_16x16x8_tilelayout,0x0, 0x10 )

	/* sprite tiles */
	GFXDECODE_ENTRY( "sprtile", 0, hng64_16x16x4_spritelayout, 0x0, 0x100 )
	GFXDECODE_ENTRY( "sprtile", 0, hng64_16x16x8_spritelayout, 0x0, 0x10 )

	GFXDECODE_ENTRY( "textures", 0, hng64_texlayout,     0x0, 0x10 )  /* textures */
GFXDECODE_END

static void hng64_reorder(running_machine &machine, UINT8* gfxregion, size_t gfxregionsize)
{
	// by default 2 4bpp tiles are stored in each 8bpp tile, this makes decoding in MAME harder than it needs to be
	// reorder them
	UINT8* buffer;
	int i;
	UINT8 tilesize = 4*8; // 4 bytes per line, 8 lines

	buffer = auto_alloc_array(machine, UINT8, gfxregionsize);

	for (i=0;i<gfxregionsize/2;i+=tilesize)
	{
		memcpy((buffer+i*2)+tilesize, gfxregion+i,                   tilesize);
		memcpy((buffer+i*2),          gfxregion+i+(gfxregionsize/2), tilesize);
	}

	memcpy(gfxregion, buffer, gfxregionsize);

	auto_free (machine, buffer);
}

static DRIVER_INIT( hng64_reorder_gfx )
{
	hng64_reorder(machine, machine.region("scrtile")->base(), machine.region("scrtile")->bytes());
}

#define HACK_REGION
#ifdef HACK_REGION
static void hng64_patch_bios_region(running_machine& machine, int region)
{
	UINT8 *rom = machine.region("user1")->base();

	if ((rom[0x4000]==0xff) && (rom[0x4001] == 0xff))
	{
		// both?
		rom[0x4002] = region;
		rom[0x4003] = region;

	}
}
#endif

static DRIVER_INIT( hng64 )
{
	hng64_state *state = machine.driver_data<hng64_state>();

	// region hacking, english error messages are more useful to us, but no english bios is dumped...
#ifdef HACK_REGION
// versions according to fatal fury test mode
//  hng64_patch_bios_region(machine, 0); // 'Others Ver' (invalid?)
	hng64_patch_bios_region(machine, 1); // Japan
//  hng64_patch_bios_region(machine, 2); // USA
//  hng64_patch_bios_region(machine, 3); // Korea
//  hng64_patch_bios_region(machine, 4); // 'Others'
#endif

	/* 1 meg of virtual address space for the com cpu */
	state->m_com_virtual_mem = auto_alloc_array(machine, UINT8, 0x100000);
	state->m_com_op_base     = auto_alloc_array(machine, UINT8, 0x10000);

	state->m_soundram = auto_alloc_array(machine, UINT16, 0x200000/2);
	DRIVER_INIT_CALL(hng64_reorder_gfx);
}

static DRIVER_INIT(hng64_fght)
{
	hng64_state *state = machine.driver_data<hng64_state>();

	state->m_no_machine_error_code = 0x01000000;
	DRIVER_INIT_CALL(hng64);
}

static DRIVER_INIT( fatfurwa )
{
	hng64_state *state = machine.driver_data<hng64_state>();

	/* FILE* fp = fopen("/tmp/test.bin", "wb"); fwrite(machine.region("verts")->base(), 1, 0x0c00000*2, fp); fclose(fp); */
	DRIVER_INIT_CALL(hng64_fght);
	state->m_mcu_type = FIGHT_MCU;
}

static DRIVER_INIT( ss64 )
{
	hng64_state *state = machine.driver_data<hng64_state>();

	DRIVER_INIT_CALL(hng64_fght);
	state->m_mcu_type = SAMSHO_MCU;
}

static DRIVER_INIT(hng64_race)
{
	hng64_state *state = machine.driver_data<hng64_state>();

	state->m_no_machine_error_code = 0x02000000;
	state->m_mcu_type = RACING_MCU;
	DRIVER_INIT_CALL(hng64);
}

static DRIVER_INIT(hng64_shoot)
{
	hng64_state *state = machine.driver_data<hng64_state>();

	state->m_mcu_type = SHOOT_MCU;
	state->m_no_machine_error_code = 0x03000000;
	DRIVER_INIT_CALL(hng64);
}


/* ?? */
static const mips3_config vr4300_config =
{
	16384,				/* code cache size */
	16384				/* data cache size */
};


static TIMER_DEVICE_CALLBACK( hng64_irq )
{
	hng64_state *state = timer.machine().driver_data<hng64_state>();
	int scanline = param;
	int irq_fired,irq_type;

	irq_fired = irq_type = 0;

	/* there are more, the sources are unknown at the moment */
	switch(scanline)
	{
		case 224*2:	state->m_interrupt_level_request = 0; irq_fired = 1; irq_type = 1; break;
		case 0*2: state->m_interrupt_level_request = 1; irq_fired = 1; irq_type = 1; break;
		case 64*2: state->m_interrupt_level_request = 2; irq_fired = 1; irq_type = 1; break;
		case 128*2:  state->m_interrupt_level_request = 11; irq_fired = 1; irq_type = 1; break;
		case (0+1)*2:
		case (224+1)*2:
		case (64+1)*2:
		case (128+1)*2:
			irq_fired = 1; irq_type = 0; break;
	}

	if(irq_fired)
		device_set_input_line(state->m_maincpu, 0, (irq_type) ? ASSERT_LINE : CLEAR_LINE);
}


static MACHINE_START(hyperneo)
{
	hng64_state *state = machine.driver_data<hng64_state>();

	/* set the fastest DRC options */
	mips3drc_set_options(machine.device("maincpu"), MIPS3DRC_FASTEST_OPTIONS + MIPS3DRC_STRICT_VERIFY);

	/* configure fast RAM regions for DRC */
	mips3drc_add_fastram(machine.device("maincpu"), 0x00000000, 0x00ffffff, FALSE, state->m_mainram);
	mips3drc_add_fastram(machine.device("maincpu"), 0x04000000, 0x05ffffff, TRUE,  state->m_cart);
	mips3drc_add_fastram(machine.device("maincpu"), 0x1fc00000, 0x1fc7ffff, TRUE,  state->m_rombase);
}


static MACHINE_RESET(hyperneo)
{
	hng64_state *state = machine.driver_data<hng64_state>();
	int i;
	const UINT8 *rom = machine.region("user2")->base();

	/* Sound CPU */
	UINT8 *RAM = (UINT8*)state->m_soundram;
	memory_set_bankptr(machine, "bank1",&RAM[0x1e0000]);
	memory_set_bankptr(machine, "bank2",&RAM[0x001000]); // where..
	cputag_set_input_line(machine, "audiocpu", INPUT_LINE_HALT, ASSERT_LINE);
	cputag_set_input_line(machine, "audiocpu", INPUT_LINE_RESET, ASSERT_LINE);

	/* Comm CPU */
	KL5C80_init(state);

	/* Fill up virtual memory with ROM */
	for (i = 0x0; i < 0x100000; i++)
		state->m_com_virtual_mem[i] = rom[i];

	KL5C80_virtual_mem_sync(state);

	address_space *space = machine.device<z80_device>("comm")->space(AS_PROGRAM);
	space->set_direct_update_handler(direct_update_delegate(FUNC(KL5C80_direct_handler), &machine));

	cputag_set_input_line(machine, "comm", INPUT_LINE_RESET, PULSE_LINE);     // reset the CPU and let 'er rip
//  cputag_set_input_line(machine, "comm", INPUT_LINE_HALT, ASSERT_LINE);     // hold on there pardner...

	// "Display List" init - ugly
	state->m_activeBuffer = 0;

	/* For simulate MCU stepping */
	state->m_mcu_fake_time = 0;
	state->m_mcu_en = 0;
}

static MACHINE_CONFIG_START( hng64, hng64_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", VR4300BE, MASTER_CLOCK) 	// actually R4300
	MCFG_CPU_CONFIG(vr4300_config)
	MCFG_CPU_PROGRAM_MAP(hng_map)
	MCFG_TIMER_ADD_SCANLINE("scantimer", hng64_irq, "screen", 0, 1)

	MCFG_CPU_ADD("audiocpu", V33, 8000000)				// v53, 16? mhz!
	MCFG_CPU_PROGRAM_MAP(hng_sound_map)

	MCFG_CPU_ADD("comm", Z80,MASTER_CLOCK/4)		/* KL5C80A12CFP - binary compatible with Z80. */
	MCFG_CPU_PROGRAM_MAP(hng_comm_map)
	MCFG_CPU_IO_MAP(hng_comm_io_map)

	MCFG_NVRAM_ADD_0FILL("nvram")

	MCFG_GFXDECODE(hng64)
	MCFG_MACHINE_START(hyperneo)
	MCFG_MACHINE_RESET(hyperneo)

	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART)
	MCFG_SCREEN_UPDATE_STATIC(hng64)

	MCFG_PALETTE_LENGTH(0x1000)

	MCFG_VIDEO_START(hng64)
	MCFG_SCREEN_VBLANK_STATIC(hng64)
MACHINE_CONFIG_END


ROM_START( hng64 )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )

	/* To placate MAME */
	ROM_REGION32_LE( 0x2000000, "user3", ROMREGION_ERASEFF )
	ROM_REGION( 0x4000, "scrtile", ROMREGION_ERASEFF )
	ROM_REGION( 0x4000, "sprtile", ROMREGION_ERASEFF )
	ROM_REGION( 0x1000000, "textures", ROMREGION_ERASEFF )
	ROM_REGION16_BE( 0x0c00000, "verts", ROMREGION_ERASEFF )
	ROM_REGION( 0x1000000, "samples", ROMREGION_ERASEFF ) /* Sound Samples */
ROM_END


ROM_START( roadedge )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "001pr01b.81", 0x0000000, 0x400000, CRC(effbac30) SHA1(c1bddf3e511a8950f65ac7e452f81dbc4b7fd977) )
	ROM_LOAD32_WORD( "001pr02b.82", 0x0000002, 0x400000, CRC(b9aa4ad3) SHA1(9ab3c896dbdc45560b7127486e2db6ca3b15a057) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x1000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "001sc01a.41", 0x0000000, 0x400000, CRC(084395a1) SHA1(8bfea8fd3981fd45dcc04bd74840a5948aaf06a8) )
	ROM_LOAD16_BYTE( "001sc02a.42", 0x0000001, 0x400000, CRC(51dd19e3) SHA1(eeb3634294a049a357a75ee00aa9fce65b737395) )
	ROM_LOAD16_BYTE( "001sc03a.43", 0x0800000, 0x400000, CRC(0b6f3e19) SHA1(3b6dfd0f0633b0d8b629815920edfa39d92336bf) )
	ROM_LOAD16_BYTE( "001sc04a.44", 0x0800001, 0x400000, CRC(256c8c1c) SHA1(85935eea3722ec92f8d922f527c2e049c4185aa3) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x1000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "001sp01a.53",0x0000000, 0x400000, CRC(7a469453) SHA1(3738ca76f538243bb23ffd23a42b2a0558882889) )
	ROM_LOAD32_BYTE( "001sp02a.54",0x0000001, 0x400000, CRC(6b9a3de0) SHA1(464c652f7b193326e3a871dfe751dd83c14284eb) )
	ROM_LOAD32_BYTE( "001sp03a.55",0x0000002, 0x400000, CRC(efbbd391) SHA1(7447c481ba6f9ba154d48a4b160dd24157891d35) )
	ROM_LOAD32_BYTE( "001sp04a.56",0x0000003, 0x400000, CRC(1a0eb173) SHA1(a69b786a9957197d1cc950ab046c57c18ca07ea7) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "001tx01a.1", 0x0000000, 0x400000, CRC(f6539bb9) SHA1(57fc5583d56846be93d6f5784acd20fc149c70a5) )
	ROM_LOAD( "001tx02a.2", 0x0400000, 0x400000, CRC(f1d139d3) SHA1(f120243f4d55f38b10bf8d1aa861cdc546a24c80) )
	ROM_LOAD( "001tx03a.3", 0x0800000, 0x400000, CRC(22a375bd) SHA1(d55b62843d952930db110bcf3056a98a04a7adf4) )
	ROM_LOAD( "001tx04a.4", 0x0c00000, 0x400000, CRC(288a5bd5) SHA1(24e05db681894eb31cdc049cf42c1f9d7347bd0c) )
	ROM_LOAD( "001tx01a.5", 0x0000000, 0x400000, CRC(f6539bb9) SHA1(57fc5583d56846be93d6f5784acd20fc149c70a5) )
	ROM_LOAD( "001tx02a.6", 0x0400000, 0x400000, CRC(f1d139d3) SHA1(f120243f4d55f38b10bf8d1aa861cdc546a24c80) )
	ROM_LOAD( "001tx03a.7", 0x0800000, 0x400000, CRC(22a375bd) SHA1(d55b62843d952930db110bcf3056a98a04a7adf4) )
	ROM_LOAD( "001tx04a.8", 0x0c00000, 0x400000, CRC(288a5bd5) SHA1(24e05db681894eb31cdc049cf42c1f9d7347bd0c) )
	ROM_LOAD( "001tx01a.9", 0x0000000, 0x400000, CRC(f6539bb9) SHA1(57fc5583d56846be93d6f5784acd20fc149c70a5) )
	ROM_LOAD( "001tx02a.10",0x0400000, 0x400000, CRC(f1d139d3) SHA1(f120243f4d55f38b10bf8d1aa861cdc546a24c80) )
	ROM_LOAD( "001tx03a.11",0x0800000, 0x400000, CRC(22a375bd) SHA1(d55b62843d952930db110bcf3056a98a04a7adf4) )
	ROM_LOAD( "001tx04a.12",0x0c00000, 0x400000, CRC(288a5bd5) SHA1(24e05db681894eb31cdc049cf42c1f9d7347bd0c) )
	ROM_LOAD( "001tx01a.13",0x0000000, 0x400000, CRC(f6539bb9) SHA1(57fc5583d56846be93d6f5784acd20fc149c70a5) )
	ROM_LOAD( "001tx02a.14",0x0400000, 0x400000, CRC(f1d139d3) SHA1(f120243f4d55f38b10bf8d1aa861cdc546a24c80) )
	ROM_LOAD( "001tx03a.15",0x0800000, 0x400000, CRC(22a375bd) SHA1(d55b62843d952930db110bcf3056a98a04a7adf4) )
	ROM_LOAD( "001tx04a.16",0x0c00000, 0x400000, CRC(288a5bd5) SHA1(24e05db681894eb31cdc049cf42c1f9d7347bd0c) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x0c00000, "verts", 0 )
	ROMX_LOAD( "001vt01a.17", 0x0000000, 0x400000, CRC(1a748e1b) SHA1(376d40baa3b94890d4740045d053faf208fe43db), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "001vt02a.18", 0x0000002, 0x400000, CRC(449f94d0) SHA1(2228690532d82d2661285aeb4260689b027597cb), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "001vt03a.19", 0x0000004, 0x400000, CRC(50ac8639) SHA1(dd2d3689466990a7c479bb8f11bd930ea45e47b5), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "001sd01a.77", 0x0000000, 0x400000, CRC(a851da99) SHA1(2ba24feddafc5fadec155cdb7af305fdffcf6690) )
	ROM_LOAD( "001sd02a.78", 0x0400000, 0x400000, CRC(ca5cec15) SHA1(05e91a602728a048d61bf86aa8d43bb4186aeac1) )
ROM_END


ROM_START( sams64 )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "002-pro1a.81", 0x0000000, 0x400000, CRC(e5b907c5) SHA1(83637ffaa9031d41a5bed3397a519d1dfa8052cb) )
	ROM_LOAD32_WORD( "002-pro2a.82", 0x0000002, 0x400000, CRC(803ed2eb) SHA1(666db47886a316e68b911311e5db3bc0f5b8a34d) )
	ROM_LOAD32_WORD( "002-pro3a.83", 0x0800000, 0x400000, CRC(582156a7) SHA1(a7bbbd472a53072cbfaed5d41d4265123c9e3f3d) )
	ROM_LOAD32_WORD( "002-pro4a.84", 0x0800002, 0x400000, CRC(5a8291e9) SHA1(ec1e5a5a0ba37393e8b93d78b4ac855109d45ec9) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x2000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "002-sc01a.41", 0x0000000, 0x400000, CRC(77c3df69) SHA1(813d57814acccd2c04c951e58ac87cf7413bdf58) )
	ROM_LOAD16_BYTE( "002-sc02a.42", 0x0000001, 0x400000, CRC(60065174) SHA1(624c2e20abb53b2466df4ce2ffa9e20273798e92) )
	ROM_LOAD16_BYTE( "002-sc05a.45", 0x0800000, 0x400000, CRC(fd242bee) SHA1(b1fad97987da21c77d6c460bbed6f0dd18905ed4) )
	ROM_LOAD16_BYTE( "002-sc06a.46", 0x0800001, 0x400000, CRC(87afc297) SHA1(47d5eaae88ce501fbbd5a2d7305c1d6acadfb13e) )
	ROM_LOAD16_BYTE( "002-sc03a.43", 0x1000000, 0x400000, CRC(5d4a5289) SHA1(7a1576fdd344825cb05866c156d17b18f562a336) )
	ROM_LOAD16_BYTE( "002-sc04a.44", 0x1000001, 0x400000, CRC(aa5536fa) SHA1(09a50a29561ac97c564243da879bd7c4cf8c3cee) )
	ROM_LOAD16_BYTE( "002-sc07a.47", 0x1800000, 0x400000, CRC(e01e8a95) SHA1(b132214ef2b33a46cb605ea8f2193e77d9464881) )
	ROM_LOAD16_BYTE( "002-sc08a.48", 0x1800001, 0x400000, CRC(a17464d0) SHA1(2e6b73b1e0983b2b01455b0f4d6dc7c3845adb69) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x2000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "002-sp01a.53",0x0000000, 0x400000, CRC(c73cf9b4) SHA1(7c34fa1bc03cd366d473dbf3e316a6434ee5ec60) )
	ROM_LOAD32_BYTE( "002-sp02a.54",0x0000001, 0x400000, CRC(04b0ecc8) SHA1(893e522324dd41dfcd2217974a6740e6bc3ea1d3) )
	ROM_LOAD32_BYTE( "002-sp03a.55",0x0000002, 0x400000, CRC(13c80b74) SHA1(ad6c1690ebcde0d8237201ea43eb162cd5308ccb) )
	ROM_LOAD32_BYTE( "002-sp04a.56",0x0000003, 0x400000, CRC(b1a6a06d) SHA1(1b11ee7cec46d0c99dc6310ee8221fa2de33c359) )
	ROM_LOAD32_BYTE( "002-sp05a.57",0x1000000, 0x400000, CRC(fa71e825) SHA1(adfa8b5a8ec703d4f04285c47f2618a294c90ec5) )
	ROM_LOAD32_BYTE( "002-sp06a.58",0x1000001, 0x400000, CRC(1bcfe48e) SHA1(8d85b1eb33fea48e5c6597d2fcbec903ecdad9d9) )
	ROM_LOAD32_BYTE( "002-sp07a.59",0x1000002, 0x400000, CRC(a5049bd7) SHA1(123e32c22f53d6e55ee1d1deb4ab40891004c6fd) )
	ROM_LOAD32_BYTE( "002-sp08a.60",0x1000003, 0x400000, CRC(c2e57813) SHA1(e7a21df1f94ed959a53da9dc4667863ee77bf676) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "002-tx01a.13", 0x0000000, 0x400000, CRC(233749b5) SHA1(7c93681bbd5f4246e0dc50d26108f04e9b248d0d) )
	ROM_LOAD( "002-tx02a.14", 0x0400000, 0x400000, CRC(d5074be2) SHA1(c33e9b9f0d21ad5ad31d8f988b3c7378d374fc1b) )
	ROM_LOAD( "002-tx03a.15", 0x0800000, 0x400000, CRC(68c313f7) SHA1(90ce8d0d19a994647c7167e3b256ff31647e575a) )
	ROM_LOAD( "002-tx04a.16", 0x0c00000, 0x400000, CRC(f7dac24f) SHA1(1215354f28cbeb9fc38f6a7acae450ad5f34bb6a) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x1800000, "verts", 0 )
	ROMX_LOAD( "002-vt01a.17", 0x0000000, 0x400000, CRC(403fd7fd) SHA1(9bdadbeb4cd13c4c4e89a1c233af9eaaa46f8fdf), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "002-vt02a.18", 0x0000002, 0x400000, CRC(e1885905) SHA1(6b16083c50e887aebe2baf95bf56697c239970f2), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "002-vt03a.19", 0x0000004, 0x400000, CRC(2074a6a6) SHA1(9a5e8259d1e19d2b43878c24ca06afba5ee5e316), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "002-vt04a.20", 0x0c00000, 0x400000, CRC(aefc4d94) SHA1(f9d8222d4320ccf9f3c7c0ef307e03c8f34ea530), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "002-vt05a.21", 0x0c00002, 0x400000, CRC(d32ee9cb) SHA1(a768dfc15899924eb05eccbf8e85cb29c7b60396), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "002-vt06a.22", 0x0c00004, 0x400000, CRC(13bf3636) SHA1(7c704bf66b571350207bccc7a2d6ed1ec9de4cd5), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "002-sd01a.77", 0x0000000, 0x400000, CRC(6215036b) SHA1(ded71dce98b7f7ef78ef32d966a292bbf0d15332) )
	ROM_LOAD( "002-sd02a.78", 0x0400000, 0x400000, CRC(32b28310) SHA1(5b80750a66c12b035b493d06e3842741a3334d0f) )
	ROM_LOAD( "002-sd03a.79", 0x0800000, 0x400000, CRC(53591413) SHA1(36c7efa1aced0ca38b3ce7b95af28755973698f3) )
ROM_END


ROM_START( xrally )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "003-pr01a.81", 0x0000000, 0x400000, CRC(4e160388) SHA1(08fba66d0f0dab47f7db5bc7d411f4fc0e8219c8) )
	ROM_LOAD32_WORD( "003-pr02a.82", 0x0000002, 0x400000, CRC(c4dd4f18) SHA1(4db0e6d5cabd9e4f82d5905556174b9eff8ad4d9) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x1000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "003-sc01a.41", 0x0000000, 0x400000, CRC(bc608584) SHA1(fa4b618eb36f302f58cefea7c50618a8318927d6) )
	ROM_LOAD16_BYTE( "003-sc02a.42", 0x0000001, 0x400000, CRC(c810e9e2) SHA1(4f0d35d9b0af2a4b66253e467c0d30a519c904b6) )
	ROM_LOAD16_BYTE( "003-sc03a.43", 0x0800000, 0x400000, CRC(12724653) SHA1(5e40947086883d64db84ac51a1b29efa2f173f58) )
	ROM_LOAD16_BYTE( "003-sc04a.44", 0x0800001, 0x400000, CRC(b0062c4d) SHA1(73c75b59dc1463ad80f805191f4605a6b4b1c321) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x1000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "003-sp01a.53",0x0000000, 0x400000, CRC(12a329dc) SHA1(00929f3c460cce5a3657dec73d467731e59de564) )
	ROM_LOAD32_BYTE( "003-sp02a.54",0x0000001, 0x400000, CRC(ee9e5338) SHA1(681c2f34a2f292ce14fcbef4447ede7b949c7117) )
	ROM_LOAD32_BYTE( "003-sp03a.55",0x0000002, 0x400000, CRC(6fa8dff9) SHA1(500bd128e6568e9491e52676775e9239adc332fe) )
	ROM_LOAD32_BYTE( "003-sp04a.56",0x0000003, 0x400000, CRC(a98eec07) SHA1(de0c7db56b851daa369f37088bd536933372346f) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x2000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "003-tx01a.13", 0x0000000, 0x400000, CRC(83ea2178) SHA1(931898f57564b8b9975e06df5ccfd8c84fc2fbe3) )
	ROM_LOAD( "003-tx02a.14", 0x0400000, 0x400000, CRC(7912f4be) SHA1(bca44c1415a25f2349857b2246e3ee7abe709a84) )
	ROM_LOAD( "003-tx03a.15", 0x0800000, 0x400000, CRC(a319c94e) SHA1(14d720cdd8b9411fd82a7b4b33ee5dbfdd01c9f8) )
	ROM_LOAD( "003-tx04a.16", 0x0c00000, 0x400000, CRC(16d7805b) SHA1(4cc7b2375832c2f9f20fe882e604a2a52bf07f6f) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x0c00000, "verts", 0 )
	ROMX_LOAD( "003-vt01a.17", 0x0000000, 0x400000, CRC(3e5e275d) SHA1(74f5ec88c258bc224e271f7abeb02d6485e27d8c), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "003-vt02a.18", 0x0000002, 0x400000, CRC(da7b956e) SHA1(c57cbb8c51145ae224faba5b6a1a7e61cb2bee64), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "003-vt03a.19", 0x0000004, 0x400000, CRC(4fe72cb7) SHA1(9f8e662f0656f201924834d1ee78498d4223745e), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "003-sd01a.77", 0x0000000, 0x400000, CRC(c43898ff) SHA1(0e49b87181b56c62a674d255d326f761942b99b1) )
	ROM_LOAD( "003-sd02a.78", 0x0400000, 0x400000, CRC(079a3d5a) SHA1(a97b052de69fee7d605cae30f5a228e6ffeabb26) )
	ROM_LOAD( "003-sd03a.79", 0x0800000, 0x400000, CRC(96c0991a) SHA1(01be872b3e307258236fe96a544417dd8a0bc8bd) )
ROM_END


ROM_START( bbust2 )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "004-pr01a.81", 0x0000000, 0x400000, CRC(7b836ece) SHA1(7a4a08251f1dd66c368ac203f5a006266e77f73d) )
	ROM_LOAD32_WORD( "004-pr02a.82", 0x0000002, 0x400000, CRC(8c55a988) SHA1(d9a61ac3d8550ce0ee6aab374c9f024912163180) )
	ROM_LOAD32_WORD( "004-pr03a.83", 0x0800000, 0x400000, CRC(f25a82dd) SHA1(74c0a03021ef424e0b9c3c818be297d2967b3012) )
	ROM_LOAD32_WORD( "004-pr04a.84", 0x0800002, 0x400000, CRC(9258312b) SHA1(fabac42c8a033e85d503be56f266f9386adff10b) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x1000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "004-sc01a.41", 0x0000000, 0x400000, CRC(0b52987e) SHA1(3c7b0ce9416dea8db4cf63431166fcfa7c3bb168) )
	ROM_LOAD16_BYTE( "004-sc02a.42", 0x0000001, 0x400000, CRC(6b55309d) SHA1(87761deed6d842075bbe13abc444ac502274eeba) )
	ROM_LOAD16_BYTE( "004-sc03a.43", 0x0800000, 0x400000, CRC(17302f01) SHA1(5b6a927c520e421aa31b9162d3e47b06069b4bd0) )
	ROM_LOAD16_BYTE( "004-sc04a.44", 0x0800001, 0x400000, CRC(db31d73c) SHA1(8a6847e367e87a081cd1499294935c45f1fb4794) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x2000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "004-sp01a.53",0x0000000, 0x400000, CRC(72fe73c3) SHA1(82825705076c40558d414653386e3bf1d0693008) )
	ROM_LOAD32_BYTE( "004-sp02a.54",0x0000001, 0x400000, CRC(1ece1cff) SHA1(78d88e96df979a834b5af091d3feda8b9cd466e0) )
	ROM_LOAD32_BYTE( "004-sp03a.55",0x0000002, 0x400000, CRC(9049ab14) SHA1(0a19ccbd82f000eba19a0b407fa5765db0464cca) )
	ROM_LOAD32_BYTE( "004-sp04a.56",0x0000003, 0x400000, CRC(8f7fb914) SHA1(dd1709881bf1d9e233b4e794c0e2ce28d265f855) )
	ROM_LOAD32_BYTE( "004-sp05a.57",0x1000000, 0x400000, CRC(440ce760) SHA1(f6f256334c32fe7d25448fba73f8966c4c5b1cba) )
	ROM_LOAD32_BYTE( "004-sp06a.58",0x1000001, 0x400000, CRC(fc24d2e5) SHA1(073dcb21ec6cf9c6a81987a54c0e27a2db499341) )
	ROM_LOAD32_BYTE( "004-sp07a.59",0x1000002, 0x400000, CRC(bc580b81) SHA1(c668d0524fdc53c6ba2f3e5120f2dee7ce4279bb) )
	ROM_LOAD32_BYTE( "004-sp08a.60",0x1000003, 0x400000, CRC(d6c69bea) SHA1(24508c0ed0ca135316aec1c8239e8b755070384a) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "004-tx01a.13", 0x0000000, 0x400000, CRC(12a78a20) SHA1(a5c1c8841cd0cb5efbf7408d908fa10a743e5c6f) )
	ROM_LOAD( "004-tx02a.14", 0x0400000, 0x400000, CRC(a36c6c34) SHA1(3e4ad293b064a7c05aa23447ff5f17010cae2863) )
	ROM_LOAD( "004-tx03a.15", 0x0800000, 0x400000, CRC(f46377c0) SHA1(bfa6fc3ab89599a4443577d18578569ad55774bd) )
	ROM_LOAD( "004-tx04a.16", 0x0c00000, 0x400000, CRC(b5f0ef01) SHA1(646bfb17b9e81aecf8db33d3a021f7769b262eda) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x0c00000, "verts", 0 )
	ROMX_LOAD( "004-vt01a.17", 0x0000000, 0x400000, CRC(25ebbf9b) SHA1(b7c3fb9ee9cf75824d908e7a94970282f1845d5d), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "004-vt02a.18", 0x0000002, 0x400000, CRC(279fc216) SHA1(eb90cc347745491c1d1b1fb611fd6e227310731c), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "004-vt03a.19", 0x0000004, 0x400000, CRC(e0cf6a42) SHA1(dd09b3d05739cf030c820cd7dbaea2e7262764ab), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "004-sd01a.77", 0x0000000, 0x400000, CRC(2ef868bd) SHA1(0a1ef002efe6738698ebe98a1c3695b151fdd282) )
	ROM_LOAD( "004-sd02a.78", 0x0400000, 0x400000, CRC(07fb3135) SHA1(56cc8e29ba9b13f82a4c9248bff02e2b7a0c49b0) )
	ROM_LOAD( "004-sd03a.79", 0x0800000, 0x400000, CRC(42571f1d) SHA1(425cbd3f7c8aea1c0f057ea8f186acffb0091dc0) )
ROM_END


ROM_START( sams64_2 )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "005pr01a.81", 0x0000000, 0x400000, CRC(a69d7700) SHA1(a580783a109bc3e24248d70bcd67f62dd7d8a5dd) )
	ROM_LOAD32_WORD( "005pr02a.82", 0x0000002, 0x400000, CRC(38b9e6b3) SHA1(d1dad8247d920cc66854a0096e1c7845842d2e1c) )
	ROM_LOAD32_WORD( "005pr03a.83", 0x0800000, 0x400000, CRC(0bc738a8) SHA1(79893b0e1c4a31e02ab385c4382684245975ae8f) )
	ROM_LOAD32_WORD( "005pr04a.84", 0x0800002, 0x400000, CRC(6b504852) SHA1(fcdcab432162542d249818a6cd15b8f2e8230f97) )
	ROM_LOAD32_WORD( "005pr05a.85", 0x1000000, 0x400000, CRC(32a743d3) SHA1(4088b930a1a4d6224a0939ef3942af1bf605cdb5) )
	ROM_LOAD32_WORD( "005pr06a.86", 0x1000002, 0x400000, CRC(c09fa615) SHA1(697d6769c16b3c8f73a6df4a1e268ec40cb30d51) )
	ROM_LOAD32_WORD( "005pr07a.87", 0x1800000, 0x400000, CRC(44286ad3) SHA1(1f890c74c0da0d34940a880468e68f7fb1417813) )
	ROM_LOAD32_WORD( "005pr08a.88", 0x1800002, 0x400000, CRC(d094eb67) SHA1(3edc8d608c631a05223e1d05157cd3daf2d6597a) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "005sc01a.97",  0x0000000, 0x800000, CRC(7f11cda9) SHA1(5fbdabd8423e9723a6ec38f8503e6ca7f4f69fdd) )
	ROM_LOAD16_BYTE( "005sc02a.99",  0x0000001, 0x800000, CRC(87d1e1a7) SHA1(00f2ef46ce64ab715add8cd47745c57944286f81) )
	ROM_LOAD16_BYTE( "005sc05a.98",  0x1000000, 0x800000, CRC(4475a3f8) SHA1(f099baf766ee00d166cfa8402baa0b6ea25a0010) )
	ROM_LOAD16_BYTE( "005sc06a.100", 0x1000001, 0x800000, CRC(41c0fbbd) SHA1(1d9ac01c9499a6202ee59d15d498ec34edc05888) )
	ROM_LOAD16_BYTE( "005sc03a.101", 0x2000000, 0x800000, CRC(a5d4c535) SHA1(089a3cd07701f025024ce73b7b4d38063c33a59f) )
	ROM_LOAD16_BYTE( "005sc04a.103", 0x2000001, 0x800000, CRC(14930d77) SHA1(b4c613a8896e21fe2cac0595dd1ea30dc7fce0bd) )
	ROM_LOAD16_BYTE( "005sc07a.102", 0x3000000, 0x800000, CRC(3505b198) SHA1(2fdfdd5a1f6f31f5fb1c0af70047108d1df44af2) )
	ROM_LOAD16_BYTE( "005sc08a.104", 0x3000001, 0x800000, CRC(3139e413) SHA1(38210541379ddeba8c0b9ef8fa5430c0090db7c7) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "005sp01a.105",0x0000000, 0x800000, CRC(68eefee5) SHA1(d95bd7b549900500633af07544423b0062ac07ce) )
	ROM_LOAD32_BYTE( "005sp02a.109",0x0000001, 0x800000, CRC(5d9a49b9) SHA1(50768c496a3e0b4379e121349f32edec4f18652f) )
	ROM_LOAD32_BYTE( "005sp03a.113",0x0000002, 0x800000, CRC(9b6530fe) SHA1(398433b98578a6b4b950afc4d6318916376e0760) )
	ROM_LOAD32_BYTE( "005sp04a.117",0x0000003, 0x800000, CRC(d4e422ce) SHA1(9bfaa533ab3d014cdb0c535cf6952e01925cc30b) )
	ROM_LOAD32_BYTE( "005sp05a.106",0x2000000, 0x400000, CRC(d8b1fb26) SHA1(7da767d8e817c52afc416ccfe8caf30f66c233ef) )
	ROM_LOAD32_BYTE( "005sp06a.110",0x2000001, 0x400000, CRC(87ed72a0) SHA1(0d7db4dc9f15a0377a83f020ffbe81621ca77cff) )
	ROM_LOAD32_BYTE( "005sp07a.114",0x2000002, 0x400000, CRC(8eb3c173) SHA1(d5763c19a3e2fd93f7784d957e7401c9152c40de) )
	ROM_LOAD32_BYTE( "005sp08a.118",0x2000003, 0x400000, CRC(05486fbc) SHA1(747d9ae03ce999be4ab697753e93c90ea85b7d44) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "005tx01a.1", 0x0000000, 0x400000, CRC(05a4ceb7) SHA1(2dfc46a70c0a957ed0931a4c4df90c341aafff70) )
	ROM_LOAD( "005tx02a.2", 0x0400000, 0x400000, CRC(b7094c69) SHA1(aed9a624166f6f1a2eb4e746c61f9f46f1929283) )
	ROM_LOAD( "005tx03a.3", 0x0800000, 0x400000, CRC(34764891) SHA1(cd6ea663ae28b7f6ac1ede2f9922afbb35b915b4) )
	ROM_LOAD( "005tx04a.4", 0x0c00000, 0x400000, CRC(6be50882) SHA1(1f99717cfa69076b258a0c52d66be007fd820374) )
	ROM_LOAD( "005tx01a.5", 0x0000000, 0x400000, CRC(05a4ceb7) SHA1(2dfc46a70c0a957ed0931a4c4df90c341aafff70) )
	ROM_LOAD( "005tx02a.6", 0x0400000, 0x400000, CRC(b7094c69) SHA1(aed9a624166f6f1a2eb4e746c61f9f46f1929283) )
	ROM_LOAD( "005tx03a.7", 0x0800000, 0x400000, CRC(34764891) SHA1(cd6ea663ae28b7f6ac1ede2f9922afbb35b915b4) )
	ROM_LOAD( "005tx04a.8", 0x0c00000, 0x400000, CRC(6be50882) SHA1(1f99717cfa69076b258a0c52d66be007fd820374) )
	ROM_LOAD( "005tx01a.9", 0x0000000, 0x400000, CRC(05a4ceb7) SHA1(2dfc46a70c0a957ed0931a4c4df90c341aafff70) )
	ROM_LOAD( "005tx02a.10",0x0400000, 0x400000, CRC(b7094c69) SHA1(aed9a624166f6f1a2eb4e746c61f9f46f1929283) )
	ROM_LOAD( "005tx03a.11",0x0800000, 0x400000, CRC(34764891) SHA1(cd6ea663ae28b7f6ac1ede2f9922afbb35b915b4) )
	ROM_LOAD( "005tx04a.12",0x0c00000, 0x400000, CRC(6be50882) SHA1(1f99717cfa69076b258a0c52d66be007fd820374) )
	ROM_LOAD( "005tx01a.13",0x0000000, 0x400000, CRC(05a4ceb7) SHA1(2dfc46a70c0a957ed0931a4c4df90c341aafff70) )
	ROM_LOAD( "005tx02a.14",0x0400000, 0x400000, CRC(b7094c69) SHA1(aed9a624166f6f1a2eb4e746c61f9f46f1929283) )
	ROM_LOAD( "005tx03a.15",0x0800000, 0x400000, CRC(34764891) SHA1(cd6ea663ae28b7f6ac1ede2f9922afbb35b915b4) )
	ROM_LOAD( "005tx04a.16",0x0c00000, 0x400000, CRC(6be50882) SHA1(1f99717cfa69076b258a0c52d66be007fd820374) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x1800000, "verts", 0 )
	ROMX_LOAD( "005vt01a.17", 0x0000000, 0x400000, CRC(48a61479) SHA1(ef982b1ecc6dfca2ad989391afcc1b3d1e7fe652), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "005vt02a.18", 0x0000002, 0x400000, CRC(ba9100c8) SHA1(f7704fb8e5310ea7d0e6ae6b8935717ec9119b6d), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "005vt03a.19", 0x0000004, 0x400000, CRC(f54a28de) SHA1(c445cf7fee71a516065cf37e05b898208f48b17e), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "005vt04a.20", 0x0c00000, 0x400000, CRC(57ad79c7) SHA1(bc382317323c1f8a31b69ae3100d3bba6b5d0838), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "005vt05a.21", 0x0c00002, 0x400000, CRC(49c82bec) SHA1(09255279edb9a204bbe1cce8cef58d5c81e86d1f), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "005vt06a.22", 0x0c00004, 0x400000, CRC(7ba05b6c) SHA1(729c1d182d74998dd904b587a2405f55af9825e0), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "005sd01a.77", 0x0000000, 0x400000, CRC(8f68150f) SHA1(a1e5efdfd1ed29f81e25c8da669851ddb7b0c826) )
	ROM_LOAD( "005sd02a.78", 0x0400000, 0x400000, CRC(6b4da6a0) SHA1(8606c413c129635bdaaa37254edbfd19b10426bb) )
	ROM_LOAD( "005sd03a.79", 0x0800000, 0x400000, CRC(a529fab3) SHA1(8559d402c8f66f638590b8b57ec9efa775010c96) )
	ROM_LOAD( "005sd04a.80", 0x0c00000, 0x400000, CRC(dca95ead) SHA1(39afdfba0e5262b524f25706a96be00e5d14548e) )
ROM_END


ROM_START( fatfurwa )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "006pr01a.81", 0x0000000, 0x400000, CRC(3830efa1) SHA1(9d8c941ccb6cbe8d138499cf9d335db4ac7a9ec0) )
	ROM_LOAD32_WORD( "006pr02a.82", 0x0000002, 0x400000, CRC(8d5de84e) SHA1(e3ae014263f370c2836f62ab323f1560cb3a9cf0) )
	ROM_LOAD32_WORD( "006pr03a.83", 0x0800000, 0x400000, CRC(c811b458) SHA1(7d94e0df501fb086b2e5cf08905d7a3adc2c6472) )
	ROM_LOAD32_WORD( "006pr04a.84", 0x0800002, 0x400000, CRC(de708d6c) SHA1(2c9848e7bbf61c574370f9ecab5f5a6ba63339fd) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "006sc01a.97", 0x0000000, 0x800000, CRC(f13dffad) SHA1(86363aeae176fd4204e446c13a028da919dc2069) )
	ROM_LOAD16_BYTE( "006sc02a.99", 0x0000001, 0x800000, CRC(be79d42a) SHA1(f3eb950a62e2df1de116af9434027439f1305e1f) )
	ROM_LOAD16_BYTE( "006sc05a.98", 0x1000000, 0x800000, CRC(0487297b) SHA1(d3fa4d691559327739c96717312faf09b498001d) )
	ROM_LOAD16_BYTE( "006sc06a.100",0x1000001, 0x800000, CRC(34a76c31) SHA1(be05dc75afb7cde65ba5d29c0e66a7b1b62c41cb) )
	ROM_LOAD16_BYTE( "006sc03a.101",0x2000000, 0x800000, CRC(16918b73) SHA1(ad0c751a301fe3c95fca19473869dfd55fb6b0de) )
	ROM_LOAD16_BYTE( "006sc04a.103",0x2000001, 0x800000, CRC(9b63cd98) SHA1(62519a3a531c4493a5a85dc01ca69413977120ca) )
	ROM_LOAD16_BYTE( "006sc07a.102",0x3000000, 0x800000, CRC(7a1c371e) SHA1(1cd4ad66dd007adc9ab0c29720cbf9955c7337e0) )
	ROM_LOAD16_BYTE( "006sc08a.104",0x3000001, 0x800000, CRC(88232ade) SHA1(4ae2a572c3525087f77c95185e8697a1fc720512) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "006sp01a.105",0x0000000, 0x800000, CRC(087b8c49) SHA1(bb1eb2baef7da91f904bf45414f21dd6bac30749) )
	ROM_LOAD32_BYTE( "006sp02a.109",0x0000001, 0x800000, CRC(da28631e) SHA1(ea7e2d9195cfa4f954f4d542296eec1323223653) )
	ROM_LOAD32_BYTE( "006sp03a.113",0x0000002, 0x800000, CRC(bb87b55b) SHA1(8644ebb356ae158244a6e03254b0212cb359e167) )
	ROM_LOAD32_BYTE( "006sp04a.117",0x0000003, 0x800000, CRC(2367a536) SHA1(304b5b7f7e5d41e69fbd4ac2a938c42f3766630e) )
	ROM_LOAD32_BYTE( "006sp05a.106",0x2000000, 0x800000, CRC(0eb8fd06) SHA1(c2b6fab1b0104910d7bb39d0a496ada39c5cc122) )
	ROM_LOAD32_BYTE( "006sp06a.110",0x2000001, 0x800000, CRC(dccc3f75) SHA1(fef8d259c17a78e2266fed965fba1e15f1cd01dd) )
	ROM_LOAD32_BYTE( "006sp07a.114",0x2000002, 0x800000, CRC(cd7baa1b) SHA1(4084f3a73aae623d69bd9de87cecf4a33b628b7f) )
	ROM_LOAD32_BYTE( "006sp08a.118",0x2000003, 0x800000, CRC(9c3044ac) SHA1(24b28bcc6be51ab3ff59c2894094cd03ec377d84) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "006tx01a.1", 0x0000000, 0x400000, CRC(ab4c1747) SHA1(2c097bd38f1a92c4b6534992f6bf29fd6dc2d265) )
	ROM_LOAD( "006tx02a.2", 0x0400000, 0x400000, CRC(7854a229) SHA1(dba23c1b793dd0308ac1088c819543fff334a57e) )
	ROM_LOAD( "006tx03a.3", 0x0800000, 0x400000, CRC(94edfbd1) SHA1(d4004bb1273e6091608856cb4b151e9d81d5ed30) )
	ROM_LOAD( "006tx04a.4", 0x0c00000, 0x400000, CRC(82d61652) SHA1(28303ae9e2545a4cb0b5843f9e73407754f41e9e) )
	ROM_LOAD( "006tx01a.5", 0x0000000, 0x400000, CRC(ab4c1747) SHA1(2c097bd38f1a92c4b6534992f6bf29fd6dc2d265) )
	ROM_LOAD( "006tx02a.6", 0x0400000, 0x400000, CRC(7854a229) SHA1(dba23c1b793dd0308ac1088c819543fff334a57e) )
	ROM_LOAD( "006tx03a.7", 0x0800000, 0x400000, CRC(94edfbd1) SHA1(d4004bb1273e6091608856cb4b151e9d81d5ed30) )
	ROM_LOAD( "006tx04a.8", 0x0c00000, 0x400000, CRC(82d61652) SHA1(28303ae9e2545a4cb0b5843f9e73407754f41e9e) )
	ROM_LOAD( "006tx01a.9", 0x0000000, 0x400000, CRC(ab4c1747) SHA1(2c097bd38f1a92c4b6534992f6bf29fd6dc2d265) )
	ROM_LOAD( "006tx02a.10",0x0400000, 0x400000, CRC(7854a229) SHA1(dba23c1b793dd0308ac1088c819543fff334a57e) )
	ROM_LOAD( "006tx03a.11",0x0800000, 0x400000, CRC(94edfbd1) SHA1(d4004bb1273e6091608856cb4b151e9d81d5ed30) )
	ROM_LOAD( "006tx04a.12",0x0c00000, 0x400000, CRC(82d61652) SHA1(28303ae9e2545a4cb0b5843f9e73407754f41e9e) )
	ROM_LOAD( "006tx01a.13",0x0000000, 0x400000, CRC(ab4c1747) SHA1(2c097bd38f1a92c4b6534992f6bf29fd6dc2d265) )
	ROM_LOAD( "006tx02a.14",0x0400000, 0x400000, CRC(7854a229) SHA1(dba23c1b793dd0308ac1088c819543fff334a57e) )
	ROM_LOAD( "006tx03a.15",0x0800000, 0x400000, CRC(94edfbd1) SHA1(d4004bb1273e6091608856cb4b151e9d81d5ed30) )
	ROM_LOAD( "006tx04a.16",0x0c00000, 0x400000, CRC(82d61652) SHA1(28303ae9e2545a4cb0b5843f9e73407754f41e9e) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x0c00000, "verts", 0 )
	ROMX_LOAD( "006vt01a.17", 0x0000000, 0x400000, CRC(5c20ed4c) SHA1(df679f518292d70b9f23d2bddabf975d56b96910), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "006vt02a.18", 0x0000002, 0x400000, CRC(150eb717) SHA1(9acb067346eb386256047c0f1d24dc8fcc2118ca), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "006vt03a.19", 0x0000004, 0x400000, CRC(021cfcaf) SHA1(fb8b5f50d3490b31f0a4c3e6d3ae1b98bae41c97), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "006sd01a.77", 0x0000000, 0x400000, CRC(790efb6d) SHA1(23ddd3ee8ae808e58cbcaf92a9ef56d3ca6289b5) )
	ROM_LOAD( "006sd02a.78", 0x0400000, 0x400000, CRC(f7f020c7) SHA1(b72fde4ff6384b80166a3cb67d31bf7afda750bc) )
	ROM_LOAD( "006sd03a.79", 0x0800000, 0x400000, CRC(1a678084) SHA1(f52efb6145102d289f332d8341d89a5d231ba003) )
	ROM_LOAD( "006sd04a.80", 0x0c00000, 0x400000, CRC(3c280a5c) SHA1(9d3fc78e18de45382878268db47ff9d9716f1505) )
ROM_END


ROM_START( buriki )
	/* BIOS */
	ROM_REGION32_BE( 0x0100000, "user1", 0 ) /* 512k for R4300 BIOS code */
	ROM_LOAD ( "brom1.bin", 0x000000, 0x080000,  CRC(a30dd3de) SHA1(3e2fd0a56214e6f5dcb93687e409af13d065ea30) )
	ROM_REGION( 0x0100000, "user2", 0 ) /* KL5C80 BIOS and unknown ROM */
	ROM_LOAD ( "from1.bin", 0x000000, 0x080000,  CRC(6b933005) SHA1(e992747f46c48b66e5509fe0adf19c91250b00c7) )
	ROM_LOAD ( "rom1.bin",  0x080000, 0x01ff32,  CRC(4a6832dc) SHA1(ae504f7733c2f40450157cd1d3b85bc83fac8569) )
	/* END BIOS */

	ROM_REGION32_LE( 0x2000000, "user3", 0 )
	ROM_LOAD32_WORD( "007pr01b.81", 0x0000000, 0x400000, CRC(a31202f5) SHA1(c657729b292d394ced021a0201a1c5608a7118ba) )
	ROM_LOAD32_WORD( "007pr02b.82", 0x0000002, 0x400000, CRC(a563fed6) SHA1(9af9a021beb814e35df968abe5a99225a124b5eb) )
	ROM_LOAD32_WORD( "007pr03a.83", 0x0800000, 0x400000, CRC(da5f6105) SHA1(5424cf5289cef66e301e968b4394e551918fe99b) )
	ROM_LOAD32_WORD( "007pr04a.84", 0x0800002, 0x400000, CRC(befc7bce) SHA1(83d9ecf944e03a40cf25ee288077c2265d6a588a) )
	ROM_LOAD32_WORD( "007pr05a.85", 0x1000000, 0x400000, CRC(013e28bc) SHA1(45e5ac45b42b26957c2877ac1042472c4b5ec914) )
	ROM_LOAD32_WORD( "007pr06a.86", 0x1000002, 0x400000, CRC(0620fccc) SHA1(e0bffc56b019c79276a4ef5ec7354edda15b0889) )

	/* Scroll Characters 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "scrtile", 0 )
	ROM_LOAD16_BYTE( "007sc01a.97", 0x0000000, 0x800000, CRC(4e8300db) SHA1(f1c9e6fddc10efc8f2a530027cca062f48b8c8d4) )
	ROM_LOAD16_BYTE( "007sc02a.99", 0x0000001, 0x800000, CRC(d5855944) SHA1(019c0bd2f8de7ffddd53df6581b40940262f0053) )
	ROM_LOAD16_BYTE( "007sc05a.98", 0x1000000, 0x400000, CRC(27f848c1) SHA1(2ee9cca4e68e56c7c17c8e2d7e0f55a34a5960bd) )
	ROM_LOAD16_BYTE( "007sc06a.100",0x1000001, 0x400000, CRC(c39e9b4c) SHA1(3c8a0494c2a6866ecc0df2c551619c57ee072440) )
	ROM_LOAD16_BYTE( "007sc03a.101",0x2000000, 0x800000, CRC(ff45c9b5) SHA1(ddcc2a10ccac62eb1f3671172ad1a4d163714fca) )
	ROM_LOAD16_BYTE( "007sc04a.103",0x2000001, 0x800000, CRC(e4cb59e9) SHA1(4e07ff374890217466a53d5bfb1fa99eb7402360) )
	ROM_LOAD16_BYTE( "007sc07a.102",0x3000000, 0x400000, CRC(753e7e3d) SHA1(39b2e9fd23878d8fc4f98fe88b466e963d8fc959) )
	ROM_LOAD16_BYTE( "007sc08a.104",0x3000001, 0x400000, CRC(b605928e) SHA1(558042b84115273fa581606daafba0e9688fa002) )

	/* Sprite Characters - 8x8x8 / 16x16x8 */
	ROM_REGION( 0x4000000, "sprtile", 0 )
	ROM_LOAD32_BYTE( "007sp01a.105",0x0000000, 0x800000, CRC(160acae6) SHA1(37c15e1d2544ec6f3b61d06200345d6abdd28edf) )
	ROM_LOAD32_BYTE( "007sp02a.109",0x0000001, 0x800000, CRC(1a55331d) SHA1(0b03d5c7312e01874365b31f1ff3d9766abd00f1) )
	ROM_LOAD32_BYTE( "007sp03a.113",0x0000002, 0x800000, CRC(3f308444) SHA1(0acd52312c15a2ed3bacf60a2fd820cb09ebbb55) )
	ROM_LOAD32_BYTE( "007sp04a.117",0x0000003, 0x800000, CRC(6b81aa51) SHA1(55f7702e1d7a2bef7f050d0358de9036a0139877) )
	ROM_LOAD32_BYTE( "007sp05a.106",0x2000000, 0x400000, CRC(32d2fa41) SHA1(b16a0bbd397be2a8d532c85951b924e2e086a189) )
	ROM_LOAD32_BYTE( "007sp06a.110",0x2000001, 0x400000, CRC(b6f8d7f3) SHA1(70ce94f2193ee39218022da617413c42f6753574) )
	ROM_LOAD32_BYTE( "007sp07a.114",0x2000002, 0x400000, CRC(5caa1cc9) SHA1(3e40b10ea3bcf1239d0015da4be869632b805ddd) )
	ROM_LOAD32_BYTE( "007sp08a.118",0x2000003, 0x400000, CRC(7a158c67) SHA1(d66f4920a513208d45b908a1934d9afb894debf1) )

	/* Textures - 1024x1024x8 pages */
	ROM_REGION( 0x1000000, "textures", 0 )
	/* note: same roms are at different positions on the board, repeated a total of 4 times*/
	ROM_LOAD( "007tx01a.1", 0x0000000, 0x400000, CRC(a7774075) SHA1(4f3da9af131a7efb0f0a5180da57c19c65fffb82) )
	ROM_LOAD( "007tx02a.2", 0x0400000, 0x400000, CRC(bc05d5fd) SHA1(84e3fafcebdeb1e2ffae80785949c973a14055d8) )
	ROM_LOAD( "007tx03a.3", 0x0800000, 0x400000, CRC(da9484fb) SHA1(f54b669a66400df00bf25436e5fd5c9bf68dbd55) )
	ROM_LOAD( "007tx04a.4", 0x0c00000, 0x400000, CRC(02aa3f46) SHA1(1fca89c70586f8ebcdf669ecac121afa5cdf623f) )
	ROM_LOAD( "007tx01a.5", 0x0000000, 0x400000, CRC(a7774075) SHA1(4f3da9af131a7efb0f0a5180da57c19c65fffb82) )
	ROM_LOAD( "007tx02a.6", 0x0400000, 0x400000, CRC(bc05d5fd) SHA1(84e3fafcebdeb1e2ffae80785949c973a14055d8) )
	ROM_LOAD( "007tx03a.7", 0x0800000, 0x400000, CRC(da9484fb) SHA1(f54b669a66400df00bf25436e5fd5c9bf68dbd55) )
	ROM_LOAD( "007tx04a.8", 0x0c00000, 0x400000, CRC(02aa3f46) SHA1(1fca89c70586f8ebcdf669ecac121afa5cdf623f) )
	ROM_LOAD( "007tx01a.9", 0x0000000, 0x400000, CRC(a7774075) SHA1(4f3da9af131a7efb0f0a5180da57c19c65fffb82) )
	ROM_LOAD( "007tx02a.10",0x0400000, 0x400000, CRC(bc05d5fd) SHA1(84e3fafcebdeb1e2ffae80785949c973a14055d8) )
	ROM_LOAD( "007tx03a.11",0x0800000, 0x400000, CRC(da9484fb) SHA1(f54b669a66400df00bf25436e5fd5c9bf68dbd55) )
	ROM_LOAD( "007tx04a.12",0x0c00000, 0x400000, CRC(02aa3f46) SHA1(1fca89c70586f8ebcdf669ecac121afa5cdf623f) )
	ROM_LOAD( "007tx01a.13",0x0000000, 0x400000, CRC(a7774075) SHA1(4f3da9af131a7efb0f0a5180da57c19c65fffb82) )
	ROM_LOAD( "007tx02a.14",0x0400000, 0x400000, CRC(bc05d5fd) SHA1(84e3fafcebdeb1e2ffae80785949c973a14055d8) )
	ROM_LOAD( "007tx03a.15",0x0800000, 0x400000, CRC(da9484fb) SHA1(f54b669a66400df00bf25436e5fd5c9bf68dbd55) )
	ROM_LOAD( "007tx04a.16",0x0c00000, 0x400000, CRC(02aa3f46) SHA1(1fca89c70586f8ebcdf669ecac121afa5cdf623f) )

	/* X,Y,Z Vertex ROMs */
	ROM_REGION( 0x0c00000, "verts", 0 )
	ROMX_LOAD( "007vt01a.17", 0x0000000, 0x400000, CRC(f78a0376) SHA1(fde4ddd4bf326ae5f1ed10311c237b13b62e060c), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "007vt02a.18", 0x0000002, 0x400000, CRC(f365f608) SHA1(035fd9b829b7720c4aee6fdf204c080e6157994f), ROM_GROUPWORD | ROM_SKIP(4) )
	ROMX_LOAD( "007vt03a.19", 0x0000004, 0x400000, CRC(ba05654d) SHA1(b7fe532732c0af7860c8eded3c5abd304d74e08e), ROM_GROUPWORD | ROM_SKIP(4) )

	ROM_REGION( 0x1000000, "samples", 0 ) /* Sound Samples */
	ROM_LOAD( "007sd01a.77", 0x0000000, 0x400000, CRC(1afb48c6) SHA1(b072d4fe72d6c5267864818d300b32e85b426213) )
	ROM_LOAD( "007sd02a.78", 0x0400000, 0x400000, CRC(c65f1dd5) SHA1(7f504c585a10c1090dbd1ac31a3a0db920c992a0) )
	ROM_LOAD( "007sd03a.79", 0x0800000, 0x400000, CRC(356f25c8) SHA1(5250865900894232960686f40c5da35b3868b78c) )
	ROM_LOAD( "007sd04a.80", 0x0c00000, 0x400000, CRC(dabfbbad) SHA1(7d58d5181705618e0e2d69c6fdb81b9b3d2b9e0f) )
ROM_END

/* Bios */
GAME( 1997, hng64,    0,      hng64, hng64,  hng64,       ROT0, "SNK", "Hyper NeoGeo 64 Bios", GAME_NOT_WORKING|GAME_NO_SOUND|GAME_IS_BIOS_ROOT )

/* Games */
GAME( 1997, roadedge, hng64,  hng64, hng64,  hng64_race,  ROT0, "SNK", "Roads Edge / Round Trip (rev.B)",		  GAME_NOT_WORKING|GAME_NO_SOUND )	/* 001 */
GAME( 1998, sams64,   hng64,  hng64, hng64,  ss64,        ROT0, "SNK", "Samurai Shodown 64 / Samurai Spirits 64", GAME_NOT_WORKING|GAME_NO_SOUND )	/* 002 */
GAME( 1998, xrally,   hng64,  hng64, hng64,  hng64_race,  ROT0, "SNK", "Xtreme Rally / Off Beat Racer!",		  GAME_NOT_WORKING|GAME_NO_SOUND )	/* 003 */
GAME( 1998, bbust2,   hng64,  hng64, bbust2, hng64_shoot, ROT0, "SNK", "Beast Busters 2nd Nightmare",			  GAME_NOT_WORKING|GAME_NO_SOUND )	/* 004 */
GAME( 1998, sams64_2, hng64,  hng64, hng64,  ss64,        ROT0, "SNK", "Samurai Shodown: Warrior's Rage / Samurai Spirits 2: Asura Zanmaden", GAME_NOT_WORKING|GAME_NO_SOUND )	/* 005 */
GAME( 1998, fatfurwa, hng64,  hng64, hng64,  fatfurwa,    ROT0, "SNK", "Fatal Fury: Wild Ambition (rev.A)",		  GAME_NOT_WORKING|GAME_NO_SOUND )	/* 006 */
GAME( 1999, buriki,   hng64,  hng64, hng64,  fatfurwa,    ROT0, "SNK", "Buriki One (rev.B)",					  GAME_NOT_WORKING|GAME_NO_SOUND )	/* 007 */

