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

  NSM TMS9995 BASED HARDWARE
  --------------------------

  Driver by Roberto Fresca.


  Games running on this hardware:

  * NSM Poker,  198?, NSM.


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


  Hardware Notes:
  ---------------

  CPU:    1x TMS9995.
  Sound:  1x AY8912.

  ROMs:   5x Eproms.
  RAMs:   5x 2116 (2kx8) SRAM.

  one 1400bit(?!) "write rom".

  Clock: 1x 22.1184 MHz. Xtal.

  No bprom, no gals, no pals....


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


    *** Game Notes ***




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


    DRIVER UPDATES:


    [2010-10-07]

    - Initial release.
    - Added technical notes.


    TODO:



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


#define MASTER_CLOCK	XTAL_22_1184MHz

#include "emu.h"
#include "cpu/tms9900/tms9900.h"
#include "sound/ay8910.h"


class nsmpoker_state : public driver_device
{
public:
	nsmpoker_state(const machine_config &mconfig, device_type type, const char *tag)
		: driver_device(mconfig, type, tag) { }

	UINT8 *m_videoram;
	UINT8 *m_colorram;
	tilemap_t *m_bg_tilemap;
};


/*************************
*     Video Hardware     *
*************************/


static WRITE8_HANDLER( nsmpoker_videoram_w )
{
	nsmpoker_state *state = space->machine().driver_data<nsmpoker_state>();
	state->m_videoram[offset] = data;
	tilemap_mark_tile_dirty(state->m_bg_tilemap, offset);
}


static WRITE8_HANDLER( nsmpoker_colorram_w )
{
	nsmpoker_state *state = space->machine().driver_data<nsmpoker_state>();
	state->m_colorram[offset] = data;
	tilemap_mark_tile_dirty(state->m_bg_tilemap, offset);
}


static TILE_GET_INFO( get_bg_tile_info )
{
	nsmpoker_state *state = machine.driver_data<nsmpoker_state>();
/*  - bits -
    7654 3210
    ---- ----   bank select.
    ---- ----   color code.
    ---- ----   seems unused.
*/
//  int attr = state->m_colorram[tile_index];
	int code = state->m_videoram[tile_index];
//  int bank = (attr & 0x08) >> 3;
//  int color = (attr & 0x03);

	SET_TILE_INFO( 0 /* bank */, code, 0 /* color */, 0);
}


static VIDEO_START( nsmpoker )
{
	nsmpoker_state *state = machine.driver_data<nsmpoker_state>();
	state->m_bg_tilemap = tilemap_create(machine, get_bg_tile_info, tilemap_scan_rows, 8, 8, 32, 32);
}


static SCREEN_UPDATE( nsmpoker )
{
	nsmpoker_state *state = screen->machine().driver_data<nsmpoker_state>();
	tilemap_draw(bitmap, cliprect, state->m_bg_tilemap, 0, 0);
	return 0;
}


static PALETTE_INIT( nsmpoker )
{

}


/**************************
*  Read / Write Handlers  *
**************************/

static INTERRUPT_GEN( nsmpoker_interrupt )
{
	device_set_input_line_and_vector(device, 0, ASSERT_LINE, 3);//2=nmi  3,4,5,6
}

//static WRITE8_HANDLER( debug_w )
//{
//  popmessage("written : %02X", data);
//}

static READ8_HANDLER( debug_r )
{
	return space->machine().rand() & 0xff;
}


/*************************
* Memory Map Information *
*************************/

static ADDRESS_MAP_START( nsmpoker_map, AS_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x7fff) AM_ROM
	AM_RANGE(0x9000, 0xafff) AM_RAM	// OK... cleared at beginning.
	AM_RANGE(0xb000, 0xcfff) AM_ROM	// WRONG... just to map the last rom somewhere.
	AM_RANGE(0xe000, 0xefff) AM_RAM_WRITE(nsmpoker_videoram_w) AM_BASE_MEMBER(nsmpoker_state, m_videoram) // WRONG... just a placeholder.
	AM_RANGE(0xf000, 0xffff) AM_RAM_WRITE(nsmpoker_colorram_w) AM_BASE_MEMBER(nsmpoker_state, m_colorram) // WRONG... just a placeholder.
ADDRESS_MAP_END

static ADDRESS_MAP_START( nsmpoker_portmap, AS_IO, 8 )
	ADDRESS_MAP_GLOBAL_MASK(0xff)
	AM_RANGE(0xf0, 0xf0) AM_READ(debug_r)	// kind of trap at beginning
ADDRESS_MAP_END

/* I/O byte R/W


   -----------------

   unknown writes:


*/

/*************************
*      Input Ports       *
*************************/

static INPUT_PORTS_START( nsmpoker )
	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_1) PORT_NAME("IN0-1")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_2) PORT_NAME("IN0-2")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_3) PORT_NAME("IN0-3")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_4) PORT_NAME("IN0-4")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_5) PORT_NAME("IN0-5")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_6) PORT_NAME("IN0-6")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_7) PORT_NAME("IN0-7")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_8) PORT_NAME("IN0-8")

	PORT_START("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_Q) PORT_NAME("IN1-1")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_W) PORT_NAME("IN1-2")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_E) PORT_NAME("IN1-3")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_R) PORT_NAME("IN1-4")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_T) PORT_NAME("IN1-5")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_Y) PORT_NAME("IN1-6")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_U) PORT_NAME("IN1-7")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_I) PORT_NAME("IN1-8")

	PORT_START("IN2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_A) PORT_NAME("IN2-1")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_S) PORT_NAME("IN2-2")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_D) PORT_NAME("IN2-3")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_F) PORT_NAME("IN2-4")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_G) PORT_NAME("IN2-5")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_H) PORT_NAME("IN2-6")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_J) PORT_NAME("IN2-7")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_K) PORT_NAME("IN2-8")

	PORT_START("IN3")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_Z) PORT_NAME("IN3-1")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_X) PORT_NAME("IN3-2")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_C) PORT_NAME("IN3-3")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_V) PORT_NAME("IN3-4")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_B) PORT_NAME("IN3-5")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_N) PORT_NAME("IN3-6")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_M) PORT_NAME("IN3-7")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_L) PORT_NAME("IN3-8")

	PORT_START("IN4")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("IN4-1")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("IN4-2")
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("IN4-3")
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("IN4-4")
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("IN4-5")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("IN4-6")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("IN4-7")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("IN4-8")

	PORT_START("DSW1")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW2")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW4")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
INPUT_PORTS_END


/*************************
*    Graphics Layouts    *
*************************/

/* Only to see possible tiles... */

static const gfx_layout charlayout =
{
	8, 8,
	RGN_FRAC(1,4),
	4,
	{ 0, RGN_FRAC(1,4), RGN_FRAC(2,4), RGN_FRAC(3,4) },    /* bitplanes are separated */
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8	/* every char takes 8 consecutive bytes */
};

static const gfx_layout tilelayout =
{
	8, 8,
	RGN_FRAC(4,4),
	1,
	{ 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8	/* every char takes 8 consecutive bytes */
};


/******************************
* Graphics Decode Information *
******************************/

static GFXDECODE_START( nsmpoker )
	GFXDECODE_ENTRY( "maincpu", 0, charlayout, 0, 16 )
	GFXDECODE_ENTRY( "maincpu", 0, tilelayout, 0, 16 )
GFXDECODE_END


/*************************
*    Machine Drivers     *
*************************/

static MACHINE_CONFIG_START( nsmpoker, nsmpoker_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", TMS9995, MASTER_CLOCK/2)	/* guess */
	MCFG_CPU_PROGRAM_MAP(nsmpoker_map)
	MCFG_CPU_IO_MAP(nsmpoker_portmap)
	MCFG_CPU_VBLANK_INT("screen", nsmpoker_interrupt)

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MCFG_SCREEN_SIZE(32*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
	MCFG_SCREEN_UPDATE(nsmpoker)

	MCFG_GFXDECODE(nsmpoker)

	MCFG_PALETTE_INIT(nsmpoker)
	MCFG_PALETTE_LENGTH(8)

	MCFG_VIDEO_START(nsmpoker)

MACHINE_CONFIG_END


/*************************
*        Rom Load        *
*************************/

ROM_START( nsmpoker )
//  ROM_REGION( 0x10000, "maincpu", 0 )
//  ROM_LOAD( "113_277.6e", 0x0000, 0x2000, CRC(247ad554) SHA1(5cfdfb95920d7e89e3e485a06d0099191e8d41a0) )

//  ROM_REGION( 0x8000, "gfx1", 0 )
//  ROM_LOAD( "113_278.6g", 0x0000, 0x2000, CRC(08eb7305) SHA1(4e555aa481c6b4476b71909ddabf405dd6f767ed) )
//  ROM_LOAD( "113_279.5g", 0x2000, 0x2000, CRC(ac6ab327) SHA1(1012dc581b2be7df5e079ace44a721d17d21366a) )
//  ROM_LOAD( "113_280.3g", 0x4000, 0x2000, CRC(9b9be79d) SHA1(8301e74c4869d04eba680d156de9edaadd7ff83b) )
//  ROM_LOAD( "113_281.2g", 0x6000, 0x2000, CRC(4b9b448a) SHA1(3ca1f5714cf5535d2ea1e7e03bca456c89af222c) )

	ROM_REGION( 0x10000, "maincpu", 0 )
	ROM_LOAD( "113_277.6e",	0x0000, 0x2000, CRC(247ad554) SHA1(5cfdfb95920d7e89e3e485a06d0099191e8d41a0) )
	ROM_LOAD( "113_278.6g",	0x2000, 0x2000, CRC(08eb7305) SHA1(4e555aa481c6b4476b71909ddabf405dd6f767ed) )
	ROM_LOAD( "113_279.5g",	0x4000, 0x2000, CRC(ac6ab327) SHA1(1012dc581b2be7df5e079ace44a721d17d21366a) )
	ROM_LOAD( "113_280.3g",	0x6000, 0x2000, CRC(9b9be79d) SHA1(8301e74c4869d04eba680d156de9edaadd7ff83b) )
	ROM_LOAD( "113_281.2g",	0xb000, 0x2000, CRC(4b9b448a) SHA1(3ca1f5714cf5535d2ea1e7e03bca456c89af222c) )
ROM_END


/*************************
*      Game Drivers      *
*************************/

/*    YEAR  NAME      PARENT  MACHINE   INPUT     INIT  ROT    COMPANY   FULLNAME              FLAGS */
GAME( 198?, nsmpoker, 0,      nsmpoker, nsmpoker, 0,    ROT0, "NSM",    "NSM Poker (TMS9995)", GAME_NO_SOUND | GAME_NOT_WORKING )
