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

    Bank Panic / Combat Hawk hardware
    Sega & Sanritsu
    1984 - 1987

    driver by Nicola Salmoria


    PCB Layout (Comba Hawk)
    -----------------------

    C2-00170-A BANK PANIC (screened on PCB)
    834-6381 COMBAT HAWK (sticker)
    SANRITSU VIDEO GAME - screened on PCB

|------------------------------------------------------------------------|
|                             PR-10902             PR-10900              |
|        PAL (315-5073)                                                  |
|                                                                        |
|        PAL (315-5074)       EPR-10907                                  |
|                                                                        |
|                       2016  EPR-10908            EPR-10903             |
|                                                                       2|
|                             EPR-10909            EPR-10904            2|
|                                                                       ||
|                             EPR-10910  PR-10901  EPR-10905   SW1      W|
|                                                                       A|
|                                                                       Y|
|                             EPR-10911  2016      EPR-10906   SN76489   |
|                                                                        |
|                                                              SN76489   |
|                             EPR-10912                                  |
|                                                              SN76489   |
|             2016            EPR-10913             Z80                  |
|                                                               VOL      |
|15.468MHz                    EPR-10914             555   358     HA1377A|
|------------------------------------------------------------------------|

    Notes:
          2016          - 2kx8 SRAM
          Z80 clock     - 2.578MHz [15.468/6]
          SN76489 clock - 2.578MHz [15.468/6]
          VSync         - 60Hz
          HSync         - 15.36kHz
          SW1           - 8-position DIP switch

          ROMs
          ----

          PR-10900         - ?
          PR-10901         - 82S129 BIPOLAR PROM
          PR-10902         - 82S129 BIPOLAR PROM
          EPR-10907-14 & 3 - 2764 EPROM
          EPR-10904-6      - 27128 EPROM
          315-5073         - PAL16L4 (protected)
          315-5074         - PAL10L8 (read OK)



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

    Bank Panic memory map (preliminary)
    Similar to Appoooh


    0000-dfff ROM
    e000-e7ff RAM
    f000-f3ff Video RAM #1
    f400-f7ff Color RAM #1
    f800-fbff Video RAM #2
    fc00-ffff Color RAM #2

    I/O
    read:
    00  IN0
    01  IN1
    02  IN2
    04  DSW

    write:
    00  SN76496 #1
    01  SN76496 #2
    02  SN76496 #3
    05  horizontal scroll
    07  bit 0-1 = at least one of these two controls the playfield priority
        bit 2-3 = ?
        bit 4 = NMI enable
        bit 5 = flip screen
        bit 6-7 = ?

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

#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/sn76496.h"
#include "includes/bankp.h"


/*************************************
 *
 *  Address maps
 *
 *************************************/

static ADDRESS_MAP_START( bankp_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0xdfff) AM_ROM
	AM_RANGE(0xe000, 0xefff) AM_RAM
	AM_RANGE(0xf000, 0xf3ff) AM_RAM_WRITE(bankp_videoram_w) AM_BASE_MEMBER(bankp_state, videoram)
	AM_RANGE(0xf400, 0xf7ff) AM_RAM_WRITE(bankp_colorram_w) AM_BASE_MEMBER(bankp_state, colorram)
	AM_RANGE(0xf800, 0xfbff) AM_RAM_WRITE(bankp_videoram2_w) AM_BASE_MEMBER(bankp_state, videoram2)
	AM_RANGE(0xfc00, 0xffff) AM_RAM_WRITE(bankp_colorram2_w) AM_BASE_MEMBER(bankp_state, colorram2)
ADDRESS_MAP_END

static ADDRESS_MAP_START( bankp_io_map, ADDRESS_SPACE_IO, 8 )
	ADDRESS_MAP_GLOBAL_MASK(0xff)
	AM_RANGE(0x00, 0x00) AM_READ_PORT("IN0") AM_DEVWRITE("sn1", sn76496_w)
	AM_RANGE(0x01, 0x01) AM_READ_PORT("IN1") AM_DEVWRITE("sn2", sn76496_w)
	AM_RANGE(0x02, 0x02) AM_READ_PORT("IN2") AM_DEVWRITE("sn3", sn76496_w)
	AM_RANGE(0x04, 0x04) AM_READ_PORT("DSW1")
	AM_RANGE(0x05, 0x05) AM_WRITE(bankp_scroll_w)
	AM_RANGE(0x07, 0x07) AM_WRITE(bankp_out_w)
ADDRESS_MAP_END


/*************************************
 *
 *  Input ports
 *
 *************************************/

static INPUT_PORTS_START( bankp )
	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_COIN2 )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON2 )

	PORT_START("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_COCKTAIL
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_COCKTAIL
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_COCKTAIL

	PORT_START("IN2")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON3 )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_COCKTAIL
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN3 )
	PORT_BIT( 0xf8, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_START("DSW1")
	PORT_DIPNAME( 0x03, 0x00, "Coin A/B" )                  PORT_DIPLOCATION("SW1:1,2")
	PORT_DIPSETTING(    0x03, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_2C ) )
	PORT_DIPNAME( 0x04, 0x00, "Coin C" )                    PORT_DIPLOCATION("SW1:3")
	PORT_DIPSETTING(    0x04, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPNAME( 0x08, 0x00, DEF_STR( Lives ) )            PORT_DIPLOCATION("SW1:4")
	PORT_DIPSETTING(    0x00, "3" )
	PORT_DIPSETTING(    0x08, "4" )
	PORT_DIPNAME( 0x10, 0x00, DEF_STR( Bonus_Life ) )       PORT_DIPLOCATION("SW1:5")
	PORT_DIPSETTING(    0x00, "70K 200K 500K" )             /* and 900K 1500K 2000K */
	PORT_DIPSETTING(    0x10, "100K 400K 800K" )            /* and 1200K 2000K 3000K */
	PORT_DIPNAME( 0x20, 0x00, DEF_STR( Difficulty ) )       PORT_DIPLOCATION("SW1:6")
	PORT_DIPSETTING(    0x00, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )      PORT_DIPLOCATION("SW1:7")
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x40, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )          PORT_DIPLOCATION("SW1:8")
	PORT_DIPSETTING(    0x80, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )
INPUT_PORTS_END

static INPUT_PORTS_START( combh )
	PORT_INCLUDE( bankp )

	PORT_MODIFY("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_2WAY
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_2WAY
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_MODIFY("IN1")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_2WAY PORT_COCKTAIL
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_2WAY PORT_COCKTAIL
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )

	PORT_MODIFY("DSW1")
	PORT_DIPNAME( 0x01, 0x00, DEF_STR( Flip_Screen ) )      PORT_DIPLOCATION("SW1:1")
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x01, DEF_STR( On ) )
	PORT_DIPNAME( 0x06, 0x00, DEF_STR( Coinage ) )          PORT_DIPLOCATION("SW1:2,3")
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_3C ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Cabinet ) )          PORT_DIPLOCATION("SW1:5")
	PORT_DIPSETTING(    0x10, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Cocktail ) )
	PORT_DIPUNUSED_DIPLOC( 0x20, IP_ACTIVE_HIGH, "SW1:6" )
	PORT_DIPNAME( 0x40, 0x00, DEF_STR( Difficulty ) )       PORT_DIPLOCATION("SW1:7")
	PORT_DIPSETTING(    0x00, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Hard ) )
	PORT_DIPNAME( 0x80, 0x00, "Fuel" )                      PORT_DIPLOCATION("SW1:8")
	PORT_DIPSETTING(    0x00, "120 Units" )
	PORT_DIPSETTING(    0x80, "90 Units" )
INPUT_PORTS_END


/*************************************
 *
 *  Graphics definitions
 *
 *************************************/

static const gfx_layout charlayout =
{
	8,8,	/* 8*8 characters */
	1024,	/* 1024 characters */
	2,	/* 2 bits per pixel */
	{ 0, 4 },	/* the bitplanes are packed in one byte */
	{ STEP4(8*8+3,-1), STEP4(0*8+3,-1) },
	{ STEP8(0*8,8) },
	16*8	/* every char takes 8 consecutive bytes */
};
static const gfx_layout charlayout2 =
{
	8,8,	/* 8*8 characters */
	2048,	/* 2048 characters */
	3,	/* 3 bits per pixel */
	{ 0, 2048*8*8, 2*2048*8*8 },	/* the bitplanes are separated */
	{ STEP8(7,-1) },
	{ STEP8(0*8,8) },
	8*8	/* every char takes 8 consecutive bytes */
};

static GFXDECODE_START( bankp )
	GFXDECODE_ENTRY( "gfx1", 0, charlayout,      0, 32 )
	GFXDECODE_ENTRY( "gfx2", 0, charlayout2,  32*4, 16 )
GFXDECODE_END



/*************************************
 *
 *  Machine driver
 *
 *************************************/

static MACHINE_RESET( bankp )
{
	bankp_state *state = (bankp_state *)machine->driver_data;

	state->scroll_x = 0;
	state->priority = 0;
}

static MACHINE_DRIVER_START( bankp )

	/* driver data */
	MDRV_DRIVER_DATA(bankp_state)

	/* basic machine hardware */
	MDRV_CPU_ADD("maincpu", Z80, BANKP_CPU_CLOCK)
	MDRV_CPU_PROGRAM_MAP(bankp_map)
	MDRV_CPU_IO_MAP(bankp_io_map)
	MDRV_CPU_VBLANK_INT("screen", nmi_line_pulse)

	MDRV_MACHINE_RESET(bankp)

	/* video hardware */
	MDRV_SCREEN_ADD("screen", RASTER)
	MDRV_SCREEN_REFRESH_RATE(60)
	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	MDRV_SCREEN_SIZE(32*8, 32*8)
	MDRV_SCREEN_VISIBLE_AREA(3*8, 31*8-1, 2*8, 30*8-1)
	MDRV_GFXDECODE(bankp)
	MDRV_PALETTE_LENGTH(32*4+16*8)

	MDRV_PALETTE_INIT(bankp)
	MDRV_VIDEO_START(bankp)
	MDRV_VIDEO_UPDATE(bankp)

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_MONO("mono")

	MDRV_SOUND_ADD("sn1", SN76489, BANKP_SN76496_CLOCK)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)

	MDRV_SOUND_ADD("sn2", SN76489, BANKP_SN76496_CLOCK)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)

	MDRV_SOUND_ADD("sn3", SN76489, BANKP_SN76496_CLOCK)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END



/*************************************
 *
 *  ROM definition(s)
 *
 *************************************/

ROM_START( bankp )
	ROM_REGION( 0x10000, "maincpu", 0 )
	ROM_LOAD( "epr-6175.7e",  0x0000, 0x4000, CRC(044552b8) SHA1(8d50ba062483d4789cfd3ed86cea53dff0ff6968) )
	ROM_LOAD( "epr-6174.7f",  0x4000, 0x4000, CRC(d29b1598) SHA1(8c1ee4d23d8d6f93af3e22f2cba189b0055994fb) )
	ROM_LOAD( "epr-6173.7h",  0x8000, 0x4000, CRC(b8405d38) SHA1(0f62a972f38b4ddcea77eb0e1d76c70ddbcb7b11) )
	ROM_LOAD( "epr-6176.7d",  0xc000, 0x2000, CRC(c98ac200) SHA1(1bdb87868deebe03da18280e617530c24118da1c) )

	ROM_REGION( 0x04000, "gfx1", 0 )
	ROM_LOAD( "epr-6165.5l",  0x0000, 0x2000, CRC(aef34a93) SHA1(513895cd3144977b3d9b5ac7f2bf40384d69e157) )	/* playfield #1 chars */
	ROM_LOAD( "epr-6166.5k",  0x2000, 0x2000, CRC(ca13cb11) SHA1(3aca0b0d3f052a742e1cd0b96bfad834e78fcd7d) )

	ROM_REGION( 0x0c000, "gfx2", 0 )
	ROM_LOAD( "epr-6172.5b",  0x0000, 0x2000, CRC(c4c4878b) SHA1(423143d81408eda96f87bdc3a306517c473cbe00) )	/* playfield #2 chars */
	ROM_LOAD( "epr-6171.5d",  0x2000, 0x2000, CRC(a18165a1) SHA1(9a7513ea84f9231edba4e637df28a1705c8cdeb0) )
	ROM_LOAD( "epr-6170.5e",  0x4000, 0x2000, CRC(b58aa8fa) SHA1(432b43cd9af4e3dab579cfd191b731aa11ceb121) )
	ROM_LOAD( "epr-6169.5f",  0x6000, 0x2000, CRC(1aa37fce) SHA1(6e2402683145de8972a53c9ec01da9a422392bed) )
	ROM_LOAD( "epr-6168.5h",  0x8000, 0x2000, CRC(05f3a867) SHA1(9da11c3cea967c5f0d7397c0ff4f87b4b1446c4c) )
	ROM_LOAD( "epr-6167.5i",  0xa000, 0x2000, CRC(3fa337e1) SHA1(5fdc45436be27cceb5157bd6201c30e3de28fd7b) )

	ROM_REGION( 0x0220, "proms", 0 )
	ROM_LOAD( "pr-6177.8a",   0x0000, 0x020, CRC(eb70c5ae) SHA1(13613dad6c14004278f777d6f3f62712a2a85773) ) 	/* palette */
	ROM_LOAD( "pr-6178.6f",   0x0020, 0x100, CRC(0acca001) SHA1(54c354d825a24a9085867b114a2cd6835baebe55) ) 	/* charset #1 lookup table */
	ROM_LOAD( "pr-6179.5a",   0x0120, 0x100, CRC(e53bafdb) SHA1(7a414f6db5476dd7d0217e5b846ed931381eda02) ) 	/* charset #2 lookup table */

	ROM_REGION( 0x025c, "user1", 0 )
	ROM_LOAD( "315-5074.2c.bin",   0x0000, 0x025b, CRC(2e57bbba) SHA1(c3e45e8a972342779442e50872a2f5f2d61e9c0a) )
	ROM_LOAD( "315-5073.pal16l4",  0x0000, 0x0001, NO_DUMP ) /* read protected */
ROM_END


ROM_START( combh )
	ROM_REGION( 0x10000, "maincpu", 0 )
	ROM_LOAD( "epr-10904.7e",  0x0000, 0x4000, CRC(4b106335) SHA1(1cdfac301b52ccd98d09b52089bb2a45fc9afdbb) )
	ROM_LOAD( "epr-10905.7f",  0x4000, 0x4000, CRC(a76fc390) SHA1(9ffc453010ffb93db5f549e3cc1e0a4eb39ac61c) )
	ROM_LOAD( "epr-10906.7h",  0x8000, 0x4000, CRC(16d54885) SHA1(e00fc618bb1a1f8c160fe2a0d4de6d9750313643) )
	ROM_LOAD( "epr-10903.7d",  0xc000, 0x2000, CRC(b7a59cab) SHA1(6321fa9bdf580d76267b13fcf7dc066a45e0c926) )

	ROM_REGION( 0x04000, "gfx1", 0 )
	ROM_LOAD( "epr-10914.5l",  0x0000, 0x2000, CRC(7d7a2340) SHA1(7411131bf929eaf11e12047eea74158daf8dd274) )
	ROM_LOAD( "epr-10913.5k",  0x2000, 0x2000, CRC(d5c1a8ae) SHA1(4f05fd183918bcc5e7b312df5a22f92756cec01d) )

	ROM_REGION( 0x0c000, "gfx2", 0 )
	ROM_LOAD( "epr-10907.5b",  0x0000, 0x2000, CRC(08e5eea3) SHA1(1ab46f9f390a4d8647b0bc07bff66f4d7f47b19e) )
	ROM_LOAD( "epr-10908.5d",  0x2000, 0x2000, CRC(d9e413f5) SHA1(c9eb038eed97fcdb56c368f5540b372a1c7b4250) )
	ROM_LOAD( "epr-10909.5e",  0x4000, 0x2000, CRC(fec7962c) SHA1(1e58cb19d3a80164a9968e42eea0503364dad017) )
	ROM_LOAD( "epr-10910.5f",  0x6000, 0x2000, CRC(33db0fa7) SHA1(51f73a216d1349fd194bcc166bfbc7a39935f1bf) )
	ROM_LOAD( "epr-10911.5h",  0x8000, 0x2000, CRC(565d9e6d) SHA1(99071eaacfc571eb55e199f2f723fe6ef109b07a) )
	ROM_LOAD( "epr-10912.5i",  0xa000, 0x2000, CRC(cbe22738) SHA1(2dbdb593882ec66e783411f02941ce822e1c62a1) )

	ROM_REGION( 0x0220, "proms", 0 )
	ROM_LOAD( "pr-10900.8a",   0x0000, 0x020, CRC(f95fcd66) SHA1(ed7bf6691a942f344b0230310876a63a68606922) )	/* palette */
	ROM_LOAD( "pr-10901.6f",   0x0020, 0x100, CRC(6fd981c8) SHA1(0bd2e7b72fd5e055224a675108e2e706cd6f6e5a) )	/* charset #2 lookup table */
	ROM_LOAD( "pr-10902.5a",   0x0120, 0x100, CRC(84d6bded) SHA1(67d9c4c7d7c84eb54ec655a4cf1768ca0cbb047d) )	/* charset #1 lookup table */

	ROM_REGION( 0x025c, "user1", 0 )
	ROM_LOAD( "315-5074.2c.bin",   0x0000, 0x025b, CRC(2e57bbba) SHA1(c3e45e8a972342779442e50872a2f5f2d61e9c0a) )
	ROM_LOAD( "315-5073.pal16l4",  0x0000, 0x0001, NO_DUMP ) /* read protected */
ROM_END


/*************************************
 *
 *  Game driver(s)
 *
 *************************************/

GAME( 1984, bankp, 0, bankp, bankp, 0, ROT0,   "Sanritsu / Sega", "Bank Panic",  GAME_SUPPORTS_SAVE )
GAME( 1987, combh, 0, bankp, combh, 0, ROT270, "Sanritsu / Sega", "Combat Hawk", GAME_SUPPORTS_SAVE )
