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                                                 
// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria
/***************************************************************************

    Rollergames (GX999) (c) 1991 Konami

    driver by Nicola Salmoria


    2009-03:
    Added dsw locations and verified factory settings based on Guru's notes

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

#include "emu.h"
#include "includes/rollerg.h"

#include "cpu/z80/z80.h"
#include "cpu/m6809/konami.h" /* for the callback and the firq irq definition */
#include "machine/watchdog.h"
#include "sound/3812intf.h"
#include "sound/k053260.h"

#include "speaker.h"


WRITE8_MEMBER(rollerg_state::rollerg_0010_w)
{
	logerror("%04x: write %02x to 0010\n",m_maincpu->pc(), data);

	/* bits 0/1 are coin counters */
	machine().bookkeeping().coin_counter_w(0, data & 0x01);
	machine().bookkeeping().coin_counter_w(1, data & 0x02);

	/* bit 2 enables 051316 ROM reading */
	m_readzoomroms = data & 0x04;

	/* bit 5 enables 051316 wraparound */
	m_k051316->wraparound_enable(data & 0x20);

	/* other bits unknown */
}

READ8_MEMBER(rollerg_state::rollerg_k051316_r)
{
	if (m_readzoomroms)
		return m_k051316->rom_r(space, offset);
	else
		return m_k051316->read(space, offset);
}

WRITE8_MEMBER(rollerg_state::soundirq_w)
{
	m_audiocpu->set_input_line_and_vector(0, HOLD_LINE, 0xff);
}

void rollerg_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
	switch (id)
	{
	case TIMER_NMI:
		m_audiocpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
		break;
	default:
		assert_always(false, "Unknown id in rollerg_state::device_timer");
	}
}

WRITE8_MEMBER(rollerg_state::sound_arm_nmi_w)
{
	m_audiocpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
	m_nmi_timer->adjust(attotime::from_usec(50));   /* kludge until the K053260 is emulated correctly */
}

READ8_MEMBER(rollerg_state::pip_r)
{
	return 0x7f;
}

void rollerg_state::rollerg_map(address_map &map)
{
	map(0x0010, 0x0010).w(this, FUNC(rollerg_state::rollerg_0010_w));
	map(0x0020, 0x0020).rw("watchdog", FUNC(watchdog_timer_device::reset_r), FUNC(watchdog_timer_device::reset_w));
	map(0x0030, 0x0031).rw("k053260", FUNC(k053260_device::main_read), FUNC(k053260_device::main_write));
	map(0x0040, 0x0040).w(this, FUNC(rollerg_state::soundirq_w));
	map(0x0050, 0x0050).portr("P1");
	map(0x0051, 0x0051).portr("P2");
	map(0x0052, 0x0052).portr("DSW3");
	map(0x0053, 0x0053).portr("DSW1");
	map(0x0060, 0x0060).portr("DSW2");
	map(0x0061, 0x0061).r(this, FUNC(rollerg_state::pip_r));             /* ????? */
	map(0x0100, 0x010f).rw(m_k053252, FUNC(k053252_device::read), FUNC(k053252_device::write));      /* 053252? */
	map(0x0200, 0x020f).w(m_k051316, FUNC(k051316_device::ctrl_w));
	map(0x0300, 0x030f).rw(m_k053244, FUNC(k05324x_device::k053244_r), FUNC(k05324x_device::k053244_w));
	map(0x0800, 0x0fff).r(this, FUNC(rollerg_state::rollerg_k051316_r)).w(m_k051316, FUNC(k051316_device::write));
	map(0x1000, 0x17ff).rw(m_k053244, FUNC(k05324x_device::k053245_r), FUNC(k05324x_device::k053245_w));
	map(0x1800, 0x1fff).ram().w("palette", FUNC(palette_device::write8)).share("palette");
	map(0x2000, 0x3aff).ram();
	map(0x4000, 0x7fff).bankr("bank1");
	map(0x8000, 0xffff).rom();
}

void rollerg_state::rollerg_sound_map(address_map &map)
{
	map(0x0000, 0x7fff).rom();
	map(0x8000, 0x87ff).ram();
	map(0xa000, 0xa02f).rw("k053260", FUNC(k053260_device::read), FUNC(k053260_device::write));
	map(0xc000, 0xc001).rw("ymsnd", FUNC(ym3812_device::read), FUNC(ym3812_device::write));
	map(0xfc00, 0xfc00).w(this, FUNC(rollerg_state::sound_arm_nmi_w));
}

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

    Input Ports

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

static INPUT_PORTS_START( rollerg )
	PORT_START("P1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START1 )

	PORT_START("P2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )

	PORT_START("DSW1")
	PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )       PORT_DIPLOCATION("SW1:1,2,3,4")
	PORT_DIPSETTING(    0x02, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0x0f, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x0e, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x0a, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x09, DEF_STR( 1C_7C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )       PORT_DIPLOCATION("SW1:5,6,7,8")
	PORT_DIPSETTING(    0x20, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x50, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x40, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0xf0, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x70, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0xe0, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x60, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0xd0, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0xb0, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0xa0, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x90, DEF_STR( 1C_7C ) )
	PORT_DIPSETTING(    0x00, "No Credits" )
	/* No Credits = both coin slots open, but no effect on coin counters */

	PORT_START("DSW2")
	PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives ) )        PORT_DIPLOCATION("SW2:1,2")
	PORT_DIPSETTING(    0x03, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x04, "SW2:3" )           /* Manual says it's unused */
	PORT_DIPNAME( 0x18, 0x10, "Bonus Energy" )          PORT_DIPLOCATION("SW2:4,5")
	PORT_DIPSETTING(    0x00, "1/2 for Stage Winner" )
	PORT_DIPSETTING(    0x08, "1/4 for Stage Winner" )
	PORT_DIPSETTING(    0x10, "1/4 for Cycle Winner" )
	PORT_DIPSETTING(    0x18, DEF_STR( None ) )
	PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) )   PORT_DIPLOCATION("SW2:6,7")
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )  PORT_DIPLOCATION("SW2:8")
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("DSW3")
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )  PORT_DIPLOCATION("SW3:1")
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPUNKNOWN_DIPLOC( 0x02, 0x02, "SW3:2" )           /* Manual says it's unused */
	PORT_SERVICE_DIPLOC( 0x04, IP_ACTIVE_LOW, "SW3:3" )
	PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x08, "SW3:4" )           /* Manual says it's unused */
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE1 )
INPUT_PORTS_END



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

    Machine Driver

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

WRITE_LINE_MEMBER(rollerg_state::rollerg_irq_ack_w)
{
	m_maincpu->set_input_line(0, CLEAR_LINE);
}

void rollerg_state::machine_start()
{
	uint8_t *ROM = memregion("maincpu")->base();

	membank("bank1")->configure_entries(0, 6, &ROM[0x10000], 0x4000);
	membank("bank1")->configure_entries(6, 2, &ROM[0x10000], 0x4000);
	membank("bank1")->set_entry(0);

	m_nmi_timer = timer_alloc(TIMER_NMI);

	save_item(NAME(m_readzoomroms));
}

void rollerg_state::machine_reset()
{
	m_readzoomroms = 0;
}

WRITE8_MEMBER( rollerg_state::banking_callback )
{
	membank("bank1")->set_entry(data & 0x07);
}


MACHINE_CONFIG_START(rollerg_state::rollerg)

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", KONAMI, 3000000)        /* ? */
	MCFG_CPU_PROGRAM_MAP(rollerg_map)
	MCFG_CPU_VBLANK_INT_DRIVER("screen", rollerg_state, irq0_line_assert)
	MCFG_KONAMICPU_LINE_CB(WRITE8(rollerg_state, banking_callback))

	MCFG_CPU_ADD("audiocpu", Z80, 3579545)
	MCFG_CPU_PROGRAM_MAP(rollerg_sound_map) /* NMIs are generated by the 053260 */

	MCFG_WATCHDOG_ADD("watchdog")

	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
	MCFG_SCREEN_SIZE(64*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(14*8, (64-14)*8-1, 2*8, 30*8-1 )
	MCFG_SCREEN_UPDATE_DRIVER(rollerg_state, screen_update_rollerg)
	MCFG_SCREEN_PALETTE("palette")

	MCFG_PALETTE_ADD("palette", 1024)
	MCFG_PALETTE_ENABLE_SHADOWS()
	MCFG_PALETTE_FORMAT(xBBBBBGGGGGRRRRR)

	MCFG_DEVICE_ADD("k053244", K053244, 0)
	MCFG_GFX_PALETTE("palette")
	MCFG_K05324X_OFFSETS(-3, -1)
	MCFG_K05324X_CB(rollerg_state, sprite_callback)

	MCFG_DEVICE_ADD("k051316", K051316, 0)
	MCFG_GFX_PALETTE("palette")
	MCFG_K051316_OFFSETS(22, 1)
	MCFG_K051316_CB(rollerg_state, zoom_callback)

	MCFG_DEVICE_ADD("k053252", K053252, 3000000*2)
	MCFG_K053252_INT1_ACK_CB(WRITELINE(rollerg_state,rollerg_irq_ack_w))
	MCFG_K053252_OFFSETS(14*8, 2*8)

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

	MCFG_SOUND_ADD("ymsnd", YM3812, 3579545)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)

	MCFG_K053260_ADD("k053260", 3579545)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.70)
MACHINE_CONFIG_END



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

  Game ROMs

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

ROM_START( rollerg )
	ROM_REGION( 0x28000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "999m02.g7",  0x10000, 0x18000, CRC(3df8db93) SHA1(10c46d53d11b12b8f7cc6417601baef4638c1efe) )
	ROM_CONTINUE(           0x08000, 0x08000 )

	ROM_REGION( 0x10000, "audiocpu", 0 ) /* 64k for the sound CPU */
	ROM_LOAD( "999m01.e11", 0x0000, 0x8000, CRC(1fcfb22f) SHA1(ef058a7de6ba7cf310b91975345113acc6078f8a) )

	ROM_REGION( 0x200000, "k053244", 0 )
	ROM_LOAD32_WORD( "999h06.k2", 0x000000, 0x100000, CRC(eda05130) SHA1(b52073a4a4651035d5f1e112601ceb2d004b2143) ) /* sprites */
	ROM_LOAD32_WORD( "999h05.k8", 0x000002, 0x100000, CRC(5f321c7d) SHA1(d60a3480891b83ac109f2fecfe2b958bac310c15) )

	ROM_REGION( 0x080000, "k051316", 0 )
	ROM_LOAD( "999h03.d23", 0x000000, 0x040000, CRC(ea1edbd2) SHA1(a17d19f873384287e1e47222d46274e7408b40d4) ) /* zoom */
	ROM_LOAD( "999h04.f23", 0x040000, 0x040000, CRC(c1a35355) SHA1(615606d30500a8f2be19171893e985b085fff2fc) )

	ROM_REGION( 0x80000, "k053260", 0 ) /* samples for 053260 */
	ROM_LOAD( "999h09.c5",  0x000000, 0x080000, CRC(c5188783) SHA1(d9ab69e4197ba2b42e3b0bb713236c8037fc2ab3) )
ROM_END

ROM_START( rollergj )
	ROM_REGION( 0x28000, "maincpu", 0 ) /* code + banked roms */
	ROM_LOAD( "999v02.bin", 0x10000, 0x18000, CRC(0dd8c3ac) SHA1(4c3d5514dec317c6640ceaaa06411766632f4412) )
	ROM_CONTINUE(           0x08000, 0x08000 )

	ROM_REGION( 0x10000, "audiocpu", 0 ) /* 64k for the sound CPU */
	ROM_LOAD( "999m01.e11", 0x0000, 0x8000, CRC(1fcfb22f) SHA1(ef058a7de6ba7cf310b91975345113acc6078f8a) )

	ROM_REGION( 0x200000, "k053244", 0 )
	ROM_LOAD32_WORD( "999h06.k2", 0x000000, 0x100000, CRC(eda05130) SHA1(b52073a4a4651035d5f1e112601ceb2d004b2143) ) /* sprites */
	ROM_LOAD32_WORD( "999h05.k8", 0x000002, 0x100000, CRC(5f321c7d) SHA1(d60a3480891b83ac109f2fecfe2b958bac310c15) )

	ROM_REGION( 0x080000, "k051316", 0 )
	ROM_LOAD( "999h03.d23", 0x000000, 0x040000, CRC(ea1edbd2) SHA1(a17d19f873384287e1e47222d46274e7408b40d4) ) /* zoom */
	ROM_LOAD( "999h04.f23", 0x040000, 0x040000, CRC(c1a35355) SHA1(615606d30500a8f2be19171893e985b085fff2fc) )

	ROM_REGION( 0x80000, "k053260", 0 ) /* samples for 053260 */
	ROM_LOAD( "999h09.c5",  0x000000, 0x080000, CRC(c5188783) SHA1(d9ab69e4197ba2b42e3b0bb713236c8037fc2ab3) )
ROM_END



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

  Game driver(s)

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

GAME( 1991, rollerg,  0,       rollerg, rollerg, rollerg_state, 0, ROT0, "Konami", "Rollergames (US)",    MACHINE_SUPPORTS_SAVE )
GAME( 1991, rollergj, rollerg, rollerg, rollerg, rollerg_state, 0, ROT0, "Konami", "Rollergames (Japan)", MACHINE_SUPPORTS_SAVE )