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

    Entertainment Sciences Real-Time Image Processor System

Turbo Sub   1986
Bouncer     1983 (No ROMs available)

Hardware
========
* 6809 (Game Processor)
 - i8251A (USART)
* 6809 (Frame Processor)
* 6809 (Sound Processor)
 - TMS5220NL
 - DAC
* AM29116DC (Video Processor)

Useful References
=================
http://www.turbosub.com/schematics.htm
http://www.turbosub.com/ripdoc1.jpg (1 to 4)
http://www.ionpool.net/arcade/es/turbo_sub.html
http://www.bitsavers.org/pdf/amd/_dataSheets/29116_dataSheet_Mar86.pdf

Note: The schematics do not represent exactly the final hardware.

Information
===========

The game processor is responsible for gameplay and reading inputs
(keypad, ADC and digital). It shares 16kB of RAM with the frame processor.
According to the schematics, it also has access to collision detection RAM
and palette RAM used by the video system.

The frame processor organises data supplied by the game processor into a
suitable format for the video processor and video hardware. It shares 8kB of
banked RAM (Frame Drive Table) with the video processor.

The video processor instructions are stored in 6 PROMS (which are ARE
NOT DUMPED).

Each CPU has a R/W status port used to communicate with the other CPUs
and hardware.

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

#include "driver.h"
#include "cpu/m6809/m6809.h"

/* Set to 1 to display test results and skip on errors */
#define ROM_PATCHES 1

/* Frame Drive Table bank indicators */
static int _FASEL = 0;
static int _FBSEL = 1;

static UINT8 *FDT_A;
static UINT8 *FDT_B;
static UINT8 INTER_CPU_REG;

static VIDEO_START( turbosub )
{
}

static VIDEO_UPDATE( turbosub )
{
	return 0;
}


static MACHINE_RESET( turbosub )
{
#if ROM_PATCHES
	UINT8 *rom = (UINT8 *)memory_region(REGION_CPU1);

	rom[0xf564]=0;		/* Display test status */
	rom[0xf60a]=0x20;	/* Skip on error */
#endif
}

static DRIVER_INIT( turbosub )
{
	FDT_A = auto_malloc(0x1000);
	FDT_B = auto_malloc(0x1000);
}

/* i8251A UART */
static WRITE8_HANDLER( UART_W )
{
	if (offset==0)
		mame_printf_debug("%c",data);
}

static READ8_HANDLER( UART_R )
{
	return 0;
}

/*
        Game Processor
        ==============

Status Write            Status Read
============            ===========
0: 6809 #0 ROM bank bit 0       0: Frame CPU status out D0
1: 6809 #0 ROM bank bit 1       1: Frame CPU status out D0
2:                              2: Frame CPU status out D0
3:                              3: Frame CPU status out D0
4: ? (usually 1)                4:
5: ? (usually 1)                5:
6: V0? (AM29116)(active high?)  6:
7: Game/Frame CPU NMI           7: /RIPERR ?

*/

static READ8_HANDLER( G_STATUS_R )
{
	return 0x80 | INTER_CPU_REG;
}

static WRITE8_HANDLER( G_STATUS_W )
{
	int bankaddress;
	UINT8 *ROM = memory_region(REGION_CPU1);
	bankaddress = 0x10000 + (data & 0x03) * 0x10000;
	memory_set_bankptr(1,&ROM[bankaddress]);

        cpunum_set_input_line(0, INPUT_LINE_NMI, (data&0x80) ? ASSERT_LINE : CLEAR_LINE);
        cpunum_set_input_line(1, INPUT_LINE_NMI, (data&0x80) ? ASSERT_LINE : CLEAR_LINE);
}

/*
        Frame Processor
        ===============

Status Write            Status Read
============            ===========
0: Game CPU status in D0        0: /VBLANK ?
1: Game CPU status in D1        1:
2: Game CPU status in D2        2:
3: Game CPU status in D3        3:
4:                              4:
5:                              5:
6:                              6: /FBSEL
7:                      7:

*/

static READ8_HANDLER( F_STATUS_R )
{
	return (_FBSEL << 6);
}

static WRITE8_HANDLER( F_STATUS_W )
{
        INTER_CPU_REG = data;
}

static WRITE8_HANDLER( FRAME )
{
	_FASEL = !_FASEL;
	_FBSEL = !_FBSEL;
}

static READ8_HANDLER( FDT_R )
{
 	if(!_FASEL)
 		return FDT_A[offset];
 	else
 		return FDT_B[offset];
}

static WRITE8_HANDLER( FDT_W )
{
 	if(!_FASEL)
 		FDT_A[offset] = data;
 	else
 		FDT_B[offset] = data;
}

static INPUT_PORTS_START( turbosub )
PORT_START
INPUT_PORTS_END

/*
TURBOSUB.U85
============

Vectors
=======

Reset  = E002
/NMI   = E3D0   (Not used = RTI)
SWI    = E8D0
IRQ    = E133
FIRQ   = E319
Others = E3D0   (Not used = RTI)


Self-tests (initiated by CPU 0)
===============================

       f561: LDY, #$0001             Change to 0 to print out test results.
       f737: JMP [A,X]               A = test number/2

    Test   Loc.                  Desc.                                                              Status
    ====   ====                  =====                                                              ======
    0-16                         CPU 0 ROM checksums                                                OK
    17                           CPU 0 RAM 0000-07ff                                                OK
    18                           CPU 0 RAM 0800-0fff                                                OK
    19                           CPU 0 RAM 1000-17ff                                                OK
    20                           CPU 0 RAM 1800-1fff                                                OK
    21                           CPU 0 RAM 2000-27ff                                                OK
    22                           CPU 0 RAM 2800-2fff                                                OK
    23                           CPU 0 RAM 3000-37ff                                                OK
    24     0xf90d                ?                                                                  FAIL
                                     [4800]<-b10010000
                     [4800]<-b11010000
                                     Expect bit 7 of [4800] == 1 on SECOND access or thereafter.

    25     0xf966                CPU 0<->1 communication test                                       OK
    26     0xf98b                CPU 1 ROM e000-ffff checksum                                       OK
    27     0xf990                CPU 1 RAM 3000-37ff                                                OK
    28     0xf995                CPU 1 RAM 0000-0fff                                                OK
    29     0xf99a                CPU 1 RAM 1000-17ff                                                OK
    30     0xf99f                CPU 1 RAM 1800-1fff                                                OK
    31     0xf9a4                CPU 1 RAM 2000-27ff                                                OK
    32     0xf9a9                CPU 1 RAM 2800-2fff                                                OK
    33     0xf9ae                CPU 1 RAM 3000-37ff                        OK
    34     0xf9b3                CPU 1 RAM 3800-3fff                        OK

    35     0xf9dd/0xf115                                                                    FAIL

    36     0xf9e3/f151           TEST banked FDT?                                                   OK
    37     0xf9e3                TEST banked FDT?                                                   OK
    38     0xf9e3                CPU 1 FDT (even bytes)                                     OK
    39     0xf9e3                CPU 1 FDT (odd bytes)                                          OK

    40     0xfa06                                                                                   FAIL
    41     0xfafd                                                                                   OK
    42     0xfb0e                                                                                   FAIL
    43     0xfb2a                                                                                   FAIL
    44     0xfbc9                                                                                   FAIL
    45     0xfd61                                                                                   FAIL
    46     0xfd70                                                                                   FAIL
    47     0xfd97                                                                                   FAIL
    48     0xfdc9                                                                                   FAIL
    49     0xfdee                                                                                   FAIL
    50     0xfe05                                                                                   FAIL
    51     0xfe3d                                                                                   FAIL
    52     0xfe54                                                                                   FAIL
    53     0xfe6b                                                                                   FAIL
    54     0xfe82                                                                                   FAIL
    55     0xfe99                                                                                   FAIL
*/

static ADDRESS_MAP_START( game_cpu_map, ADDRESS_SPACE_PROGRAM, 8 )
        AM_RANGE(0x0000, 0x3fff) AM_RAM AM_SHARE(1)
        AM_RANGE(0x40ff, 0x40ff) AM_RAM                                 /* W */
        AM_RANGE(0x41ff, 0x41ff) AM_RAM                                 /* W */
        AM_RANGE(0x42ff, 0x4300) AM_RAM                                 /* W */
        AM_RANGE(0x4800, 0x4800) AM_READWRITE(G_STATUS_R, G_STATUS_W)   /* Status port */
        AM_RANGE(0x4C00, 0x4C00) AM_RAM                    		/* R/W - An input device? (doesn't enter auto mode depending on read) */
        AM_RANGE(0x5000, 0x5000) AM_RAM                     		/* Write - related to 4C00. Bit 8 = ? bits0..3 =????  */
        AM_RANGE(0x5400, 0x54ff) AM_RAM                                 /* UART buffer? */
        AM_RANGE(0x5c00, 0x5c01) AM_READWRITE(UART_R, UART_W)           /* i8251A USART */
        AM_RANGE(0x6000, 0xdfff) AM_READWRITE(MRA8_BANK1, MWA8_ROM)     /* Bank switched ROMs */
        AM_RANGE(0xe000, 0xffff) AM_ROM
ADDRESS_MAP_END

/*
TURBOSUB.U63
============

Vectors
=======

Reset:  EF2A
/NMI:   EF30
Others: E064

*/

static ADDRESS_MAP_START( frame_cpu_map, ADDRESS_SPACE_PROGRAM, 8 )
        AM_RANGE(0x0000, 0x3fff) AM_RAM AM_SHARE(1)			/* 16kB RAM: Shared with game CPU */
        AM_RANGE(0x4000, 0x4fff) AM_READWRITE(FDT_R, FDT_W)		/* 8kB RAM: Frame Drive Table (banked) */
        AM_RANGE(0x6000, 0x6000) AM_READWRITE(F_STATUS_R, F_STATUS_W)	/* Status port */
        AM_RANGE(0x8000, 0x8000) AM_WRITE(FRAME)
	AM_RANGE(0xc000, 0xffff) AM_ROM
ADDRESS_MAP_END

/*
TURBOSUB.U66
============

Vectors
=======

Reset: ecb5               `
/NMI:  ecb5
FIRQ:  e114
IRQ:   e0d3

SWI:   e13d
SWI2:  e13d
SWI3:  e13d

*/


/* Sound CPU */

static ADDRESS_MAP_START( sound_cpu_map, ADDRESS_SPACE_PROGRAM, 8 )
        AM_RANGE(0x0000, 0x07ff) AM_RAM
	AM_RANGE(0x2008, 0x2008) AM_RAM		/* R=status line? D7 0=Ready? 1=Not ready? */
	AM_RANGE(0x2009, 0x2009) AM_RAM         /* W (only written once - with value read from 2008) */
	AM_RANGE(0x200a, 0x200b) AM_RAM         /* W 16-bit value during FIRQ */
        AM_RANGE(0x200c, 0x200c) AM_RAM         /* W */
        AM_RANGE(0x200d, 0x200d) AM_RAM         /* W - 03 */
        AM_RANGE(0x200e, 0x200e) AM_RAM         /* R/W - communication with game processor */
	AM_RANGE(0x200f, 0x200f) AM_RAM         /* R/W - communication with game processor */
        AM_RANGE(0x2020, 0x2020) AM_RAM		/* W - 42 */
        AM_RANGE(0x2021, 0x2021) AM_RAM		/* W - 42,1 and R during FIRQ? */
        AM_RANGE(0x2022, 0x2023) AM_RAM		/* R/W rarely */
        AM_RANGE(0x2024, 0x2025) AM_RAM		/* R/W rarely */
        AM_RANGE(0x8000, 0x8006) AM_RAM		/* R */
	AM_RANGE(0xc000, 0xffff) AM_ROM
ADDRESS_MAP_END


static MACHINE_DRIVER_START( turbosub )

	MDRV_CPU_ADD(M6809E,4000000)
	MDRV_CPU_PROGRAM_MAP(game_cpu_map,0)
	MDRV_CPU_VBLANK_INT(irq0_line_assert,1)		/* Unverified */

	MDRV_CPU_ADD(M6809E,4000000)
	MDRV_CPU_PROGRAM_MAP(frame_cpu_map,0)

	MDRV_CPU_ADD(M6809E,4000000)
	MDRV_CPU_PROGRAM_MAP(sound_cpu_map,0)

	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(34*8, 34*8)
	MDRV_SCREEN_VISIBLE_AREA(0*8, 34*8-1, 0, 34*8-1)
	MDRV_PALETTE_LENGTH(512)
        MDRV_MACHINE_RESET( turbosub )
        MDRV_INTERLEAVE(100)

	MDRV_VIDEO_START(turbosub)
	MDRV_VIDEO_UPDATE(turbosub)
MACHINE_DRIVER_END

ROM_START( turbosub )
	ROM_REGION( 0xc0000, REGION_USER1, 0) /* Non-bankswitched, 6809 #0 code */
	ROM_LOAD( "turbosub.u85",    0x18000, 0x4000, CRC(eabb9509) SHA1(cbfb6c5becb3fe1b4ed729e92a0f4029a5df7d67) )

	ROM_REGION( 0x48000, REGION_CPU1, 0 ) /* Bankswitched 6809 code */
	ROM_LOAD( "turbosub.u82",    0x10000, 0x2000, CRC(de32eb6f) SHA1(90bf31a5adf261d47b4f52e93b5e97f343b7ebf0) )
        ROM_CONTINUE(                0x20000, 0x2000 )
	ROM_LOAD( "turbosub.u81",    0x12000, 0x2000, CRC(9ae09613) SHA1(9b5ada4a21473b30be98bcc461129b6ed4e0bb11) )
        ROM_CONTINUE(                0x22000, 0x2000 )
	ROM_LOAD( "turbosub.u87",    0x14000, 0x2000, CRC(ad2284f7) SHA1(8e11b8ad0a98dd1fe6ec8f7ea9e6e4f4a45d8a1b) )
        ROM_CONTINUE(                0x24000, 0x2000 )
	ROM_LOAD( "turbosub.u86",    0x16000, 0x2000, CRC(4f51e6fd) SHA1(8f51ac6412aace29279ce7b02cad45ed681c2065) )
        ROM_CONTINUE(                0x26000, 0x2000 )

	ROM_LOAD( "turbosub.u80",    0x30000, 0x2000, CRC(ff2e2870) SHA1(45f91d63ad91585482c9dd05290b204b007e3f44) )
        ROM_CONTINUE(                0x40000, 0x2000 )
        ROM_LOAD( "turbosub.u79",    0x32000, 0x2000, CRC(13680923) SHA1(14e3daa2178853cef1fd96a68305420c11fceb96) )
        ROM_CONTINUE(                0x42000, 0x2000 )
	ROM_LOAD( "turbosub.u84",    0x34000, 0x2000, CRC(7059842d) SHA1(c20a8accd3fc23bc4476e1d08798d7a80915d37c) )
        ROM_CONTINUE(                0x44000, 0x2000 )
	ROM_LOAD( "turbosub.u83",    0x36000, 0x2000, CRC(31b86fc6) SHA1(8e56e8a75f653c3c4da2c9f31f739894beb194db) )
        ROM_CONTINUE(                0x46000, 0x2000 )

        /* e000 - ffff = Upper half of U85 (lower half is blank) */
	ROM_COPY( REGION_USER1, 0x18000+0x2000, 0xe000, 0x2000 )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )
	ROM_LOAD( "turbosub.u63",    0xc000, 0x4000, CRC(35701532) SHA1(77d957682aab10ee902c1e47c468b9ab8fe6a512) )

	ROM_REGION( 0x10000, REGION_CPU3, 0 )
	ROM_LOAD( "turbosub.u66",   0xc000, 0x4000, CRC(5091bf3d) SHA1(7ab872cef1562a45f7533c16bbbae8772673465b) )

       	ROM_REGION( 0xc0000, REGION_USER2, 0) /* Unknown */
	ROM_LOAD( "turbosub.u67",    0x00000, 0x4000, CRC(f8ae82e9) SHA1(fd27b9fe7872c3c680a1f71a4a5d5eeaa12e4a19) )
	ROM_LOAD( "turbosub.u68",    0x04000, 0x4000, CRC(72e3d09b) SHA1(eefdfcd0c4c32e465f18d40f46cb5bc022c22bfd) )
	ROM_LOAD( "turbosub.u69",    0x00000, 0x4000, CRC(ad04193b) SHA1(2f660302e60a7e68e079a8dd13266a77c077f939) )

	ROM_REGION( 0x80000, REGION_GFX1, 0 ) /* Incorrect */
	ROMX_LOAD( "turbosub.u4",    0x00000, 0x4000, CRC(08303604) SHA1(f075b645d89a2d91bd9b621748906a9f9890ee60), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u14",   0x00001, 0x4000, CRC(83b26c8d) SHA1(2dfa3b45c44652d255c402511bb3810fffb0731d), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u24",   0x00002, 0x4000, CRC(6bbb6cb3) SHA1(d513e547a05b34076bb8261abd51301ac5f3f5d4), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u34",   0x00003, 0x4000, CRC(7b844f4a) SHA1(82467eb7e116f9f225711a1698c151945e1de6e4), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u9",    0x10000, 0x4000, CRC(9a03eadf) SHA1(25ee1ebe52f030b2fa09d76161e46540c91cbc4c), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u19",   0x10001, 0x4000, CRC(498253b8) SHA1(dd74d4f9f19d8a746415baea604116faedb4fb31), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u29",   0x10002, 0x4000, CRC(809c374f) SHA1(d3849eed8441e4641ffcbca7c83ee3bb16681a0b), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u39",   0x10003, 0x4000, CRC(3e4e0681) SHA1(ac834f6823ffe835d6f149e79c1d31ae2b89e85d), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u3",    0x20000, 0x4000, CRC(825ef29c) SHA1(affadd0976f793b8bdbcbc4768b7de27121e7b11), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u13",   0x20001, 0x4000, CRC(350cc17a) SHA1(b98d16be997fc0576d3206f51f29ce3e257492d3), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u23",   0x20002, 0x4000, CRC(b1531916) SHA1(805a23f40aa875f431e835fdaceba87261c14155), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u33",   0x20003, 0x4000, CRC(0d5130cb) SHA1(7e4e4e5ea50c581a60d15964571464029515c720), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u8",    0x30000, 0x4000, CRC(01118737) SHA1(3a8e998b80dffe82296170273dcbbe9870c5b695), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u18",   0x30001, 0x4000, CRC(39fd8e57) SHA1(392f8a8cf58fc4813de840775d9c53561488152d), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u28",   0x30002, 0x4000, CRC(0628586d) SHA1(e37508c2812e1c98659aaba9c495e7396842614e), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u38",   0x30003, 0x4000, CRC(7d597a7e) SHA1(2f48faf75406ab3ff0b954040b74e68b7ca6f7a5), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u2",    0x40000, 0x4000, CRC(a8b8c032) SHA1(20512a3a1f8b9c0361e6f5a7e9a50605be3ae650), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u12",   0x40001, 0x4000, CRC(a2c4badf) SHA1(267af1be6261833211270af25045e306efffee80), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u22",   0x40002, 0x4000, CRC(97b7cf0e) SHA1(888fb2f384a5cba8a6f7569886eb6dc27e2b024f), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u32",   0x40003, 0x4000, CRC(b286710e) SHA1(5082db13630ba0967006619027c39ee3607b838d), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u7",    0x50000, 0x4000, CRC(50eea315) SHA1(567dbb3cb3a75a7507f4cb4748c7dd878e69d6b7), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u17",   0x50001, 0x4000, CRC(8a9e19e6) SHA1(19067e153c0002edfd4a756f92ad75d9a0cbc3dd), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u27",   0x50002, 0x4000, CRC(1c81a8d9) SHA1(3d13d1ccd7ec3dddf2a27600eb64b5be386e868c), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u37",   0x50003, 0x4000, CRC(59f978cb) SHA1(e99d6378de941cad92e9702fcb18aea87acd371f), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u1",    0x60000, 0x4000, CRC(88b0a7a9) SHA1(9012c8059cf60131efa6a0432accd87813187206), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u11",   0x60001, 0x4000, CRC(9f0ff723) SHA1(54b52b4ebc32f10aa32c799ac819928290e70455), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u21",   0x60002, 0x4000, CRC(b4122fe2) SHA1(50e8b488a7b7f739336b60a3fd8a5b14f5010b75), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u31",   0x60003, 0x4000, CRC(3fa15c78) SHA1(bf5cb85fc26b5045ad5acc944c917b068ace2c49), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u6",    0x70000, 0x4000, CRC(841e00bd) SHA1(f777cc8dd8dd7c8baa2007355a76db782a218efc), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u16",   0x70001, 0x4000, CRC(d3b63d81) SHA1(e86dd64825f6d9e7bebc26413f524a8962f68f2d), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u26",   0x70002, 0x4000, CRC(867cfe32) SHA1(549e4e557d63dfab8e8c463916512a1b422ce425), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u36",   0x70003, 0x4000, CRC(0d8ebc21) SHA1(7ae65edae05869376caa975ff2c778a08e8ad8a2), ROM_SKIP(3) )

	ROM_REGION( 0x40000, REGION_GFX2, 0) /* Incorrect */
	ROMX_LOAD( "turbosub.u44",   0x00000, 0x4000, CRC(eaa05860) SHA1(f649891dae9354b7f2e46e6a380b52a569229d64), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u54",   0x00001, 0x4000, CRC(bebf98d8) SHA1(170502bb44fc6d6bf14d8dac4778b37888c14a7b), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u49",   0x00002, 0x4000, CRC(b4170ac2) SHA1(bdbfc43c891c8d525dcc46fb9d05602263ab69cd), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u59",   0x00003, 0x4000, CRC(9c1f4397) SHA1(94335f2db2650f8b7e24fc3f92a04b73325ab164), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u43",   0x10000, 0x4000, CRC(5d76237c) SHA1(3d50347856039e43290497348447b1c4581f3a33), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u53",   0x10001, 0x4000, CRC(1352d58a) SHA1(76ae86c365dd4c9e1a6c5af91c01d31e7ee35f0f), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u48",   0x10002, 0x4000, CRC(cea4e036) SHA1(4afce4f2a09adf9c83ab7188c05cd7236dea16a3), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u58",   0x10003, 0x4000, CRC(5024d83f) SHA1(a293d92a0ae01901b5618b0250d48e3ba631dfcb), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u42",   0x20000, 0x4000, CRC(057a1c72) SHA1(5af89b128b7818550572d02e5ff724c415fa8b8b), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u52",   0x20001, 0x4000, CRC(070d07d6) SHA1(4c81310cd646641a380817fedffab66e76529c97), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u47",   0x20002, 0x4000, CRC(10def494) SHA1(a3ba691eb2b0d782162ffc6c081761965844a3a9), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u57",   0x20003, 0x4000, CRC(5ddb0458) SHA1(d1169882397f364ca38fbd563250b33d13b1a7c6), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u41",   0x30000, 0x4000, CRC(014bb06b) SHA1(97276ba26b60c2907e59b92cc9de5251298579cf), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u51",   0x30001, 0x4000, CRC(43cdcb5c) SHA1(3dd966daa904d3be7be63c584ba033c0e7904d5c), ROM_SKIP(3) )

	ROMX_LOAD( "turbosub.u46",   0x30002, 0x4000, CRC(3b866e2c) SHA1(c0dd4827a18eb9f4b1055d92544beed10f01fd86), ROM_SKIP(3) )
	ROMX_LOAD( "turbosub.u56",   0x30003, 0x4000, CRC(6d116adf) SHA1(f808e28cef41dc86e43d8c12966037213da87c87), ROM_SKIP(3) )
ROM_END

GAME( 1986, turbosub,  0,       turbosub,  turbosub,  turbosub, ROT0, "Entertainment Sciences", "Turbo Sub",GAME_NO_SOUND|GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING )
/* One day, perhaps Bouncer will be added here... */
