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// license:BSD-3-Clause
// copyright-holders:David Haywood
/*

  Master Boy, Z80 hardware version.

  This is Gaelco's first game, although there should be a 1986 release too,
  likely on the same hardware.

*/

#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
#include "tilemap.h"


class mastboyo_state : public driver_device
{
public:
	mastboyo_state(const machine_config &mconfig, device_type type, const char *tag) :
		driver_device(mconfig, type, tag),
		m_fgram(*this, "fgram"),
		m_fgram2(*this, "fgram2"),
		m_maincpu(*this, "maincpu"),
		m_gfxdecode(*this, "gfxdecode"),
		m_bank1(*this, "bank1"),
		m_questionrom(*this, "questions"),
		m_paletterom(*this, "palette")
	{ }

	void mastboyo(machine_config &config);

protected:
	virtual void machine_start() override;
	virtual void video_start() override;

private:
	tilemap_t *m_fg_tilemap;

	required_shared_ptr<uint8_t> m_fgram;
	required_shared_ptr<uint8_t> m_fgram2;
	required_device<cpu_device> m_maincpu;
	required_device<gfxdecode_device> m_gfxdecode;
	required_memory_bank m_bank1;
	required_region_ptr<uint8_t> m_questionrom;
	required_region_ptr<uint8_t> m_paletterom;

	void mastboyo_map(address_map &map);
	void mastboyo_portmap(address_map &map);

	DECLARE_WRITE8_MEMBER(fgram_w);
	DECLARE_WRITE8_MEMBER(fgram2_w);
	DECLARE_WRITE8_MEMBER(rombank_w);
	TILE_GET_INFO_MEMBER(get_fg_tile_info);
	uint32_t screen_update_mastboyo(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
	void mastboyo_palette(palette_device &palette) const;
};


TILE_GET_INFO_MEMBER(mastboyo_state::get_fg_tile_info)
{
	int code = m_fgram[tile_index];
	int attr = m_fgram2[tile_index];
	tileinfo.set(0,
			code,
			attr & 0x0f,
			0);
}

void mastboyo_state::video_start()
{
	m_fg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(mastboyo_state::get_fg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
}

uint32_t mastboyo_state::screen_update_mastboyo(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
	m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
	return 0;
}

WRITE8_MEMBER(mastboyo_state::fgram_w)
{
	m_fgram[offset] = data;
	m_fg_tilemap->mark_tile_dirty(offset);
}

WRITE8_MEMBER(mastboyo_state::fgram2_w)
{
	m_fgram2[offset] = data;
	m_fg_tilemap->mark_tile_dirty(offset);
}

void mastboyo_state::mastboyo_palette(palette_device &palette) const
{
	for (int i = 0; i < palette.entries(); i++)
	{
		const int pal = (m_paletterom[i] & 0x0f) | ((m_paletterom[palette.entries() + i] & 0x0f) << 4);
		const int green = (pal & 0x07);
		const int red = (pal & 0x38) >> 3;
		const int blue = (pal & 0xc0) >> 6;

		palette.set_pen_color(i, pal3bit(red), pal3bit(green), pal2bit(blue));
	}
}


WRITE8_MEMBER(mastboyo_state::rombank_w)
{
	m_bank1->set_entry(data & 0x0f);
}


void mastboyo_state::mastboyo_map(address_map &map)
{
	map(0x0000, 0x3fff).rom();
	map(0x4000, 0x47ff).ram().share("nvram");
	map(0x5000, 0x53ff).ram().w(FUNC(mastboyo_state::fgram_w)).share("fgram");
	map(0x5400, 0x57ff).ram().w(FUNC(mastboyo_state::fgram2_w)).share("fgram2");
	map(0x6000, 0x6000).w(FUNC(mastboyo_state::rombank_w));
//  map(0x7000, 0x7000).portr("UNK"); // possible watchdog? or IRQ ack?
	map(0x8000, 0xffff).bankr("bank1");
}

void mastboyo_state::mastboyo_portmap(address_map &map)
{
	map.global_mask(0xff);
	map(0x00, 0x01).w("aysnd", FUNC(ym2149_device::address_data_w));
	map(0x00, 0x00).r("aysnd", FUNC(ym2149_device::data_r));
}


static INPUT_PORTS_START( mastboyo )

	PORT_START("IN0")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_START1 )
	// note, Player 2 buttons must be used when entering name, and can be used for answering questions even in single player mode
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 Red / Enter Initial")
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 Green / Delete Initial")
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_NAME("P1 Red / <<")
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_NAME("P1 Green / >>")

	PORT_START("DSW")
	PORT_DIPNAME( 0x03, 0x01, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x03, "Disabled" )
	PORT_DIPNAME( 0x0c, 0x00, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 1C_4C ) )
	PORT_DIPNAME( 0x30, 0x20, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x00, "2" )
	PORT_DIPSETTING(    0x10, "3" )
	PORT_DIPSETTING(    0x20, "4" )
	PORT_DIPSETTING(    0x30, "6" )
	PORT_DIPNAME( 0x40, 0x40, "Attract Music" )  // From manual... 'Con Reclamo'
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, "Test Mode" )      // From manual... 'Test Inicial'
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
//  PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) <--- Why to mask and hide the test mode???
INPUT_PORTS_END


static const gfx_layout tiles8x8_layout =
{
	8,8,
	RGN_FRAC(1,1),
	4,
	{ 0, 1, 2, 3 },
	{ 24, 28, 0, 4, 8, 12, 16, 20,}, // note, slightly strange order
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
	32*8
};


static GFXDECODE_START( gfx_mastboyo )
	GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 16 )
GFXDECODE_END


void mastboyo_state::machine_start()
{
	m_bank1->configure_entries(0, 0x10, &m_questionrom[0x00000], 0x08000);
	m_bank1->set_entry(1);
}


void mastboyo_state::mastboyo(machine_config &config)
{
	/* basic machine hardware */
	Z80(config, m_maincpu, 20_MHz_XTAL / 6);
	m_maincpu->set_addrmap(AS_PROGRAM, &mastboyo_state::mastboyo_map);
	m_maincpu->set_addrmap(AS_IO, &mastboyo_state::mastboyo_portmap);
	m_maincpu->set_periodic_int(FUNC(mastboyo_state::irq0_line_hold), attotime::from_hz(256.244f));  // not sure, INT0 pin was measured at 256.244Hz

	NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);

	/* video hardware */
	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
	screen.set_refresh_hz(60);
	screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
	screen.set_size(256, 256);
	screen.set_visarea(0, 256-1, 2*8, 256-2*8-1);
	screen.set_screen_update(FUNC(mastboyo_state::screen_update_mastboyo));
	screen.set_palette("palette");

	GFXDECODE(config, m_gfxdecode, "palette", gfx_mastboyo);

	PALETTE(config, "palette", FUNC(mastboyo_state::mastboyo_palette), 256);

	/* sound hardware */
	SPEAKER(config, "mono").front_center();

	ay8910_device &aysnd(AY8910(config, "aysnd", 20_MHz_XTAL / 4));
	aysnd.port_a_read_callback().set_ioport("DSW"); // DSW
	aysnd.port_b_read_callback().set_ioport("IN0"); // player inputs
	aysnd.add_route(ALL_OUTPUTS, "mono", 0.50);
}


/*
  Master Boy.
  Gaelco (Covielsa license)

  This set is similar to the other, but with different addressing ROMs.
  The ROMs scheme matches the schematics in the manual.

  Also has a totally different device for questions: mastboy_27256.ic11,
  which is mapped at 0x78000 (all 0xff in the other set)

  Due to device addressing and the extra questions device, this dump was
  set as parent.

*/
ROM_START( mastboyo )
	ROM_REGION( 0x4000, "maincpu", 0 )
	ROM_LOAD( "mastboy_27256.ic14", 0x0000, 0x4000, CRC(a212ff85) SHA1(08ff0f401e479cbe83012b62ef9307bc33ebabaa) )
	ROM_CONTINUE(                   0x0000, 0x4000)  // Data is in the 2nd half. First one is filled with 0xff's...


	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "mastboy_27256.ic36", 0x0000, 0x4000, CRC(d862ca23) SHA1(887487601bee2195d6cde0304190277ed358d563) )
	ROM_CONTINUE(                   0x0000, 0x4000)  // Data is in the 2nd half. First one is filled with 0xff's...

	ROM_REGION( 0x80000, "questions", ROMREGION_ERASEFF )
	ROM_LOAD( "mastboy_27256.ic7",  0x40000, 0x08000, CRC(3a214efd) SHA1(752fe28a70dc01b5d4ec38c4751e609c690eed71) )
	ROM_LOAD( "mastboy_27256.ic6",  0x48000, 0x08000, CRC(4d682cfb) SHA1(7939cbc72f20c1e930b0a91ac164c7c8b3d8cb34) )
	ROM_LOAD( "mastboy_27256.ic8",  0x50000, 0x08000, CRC(40b07eeb) SHA1(93f62e0a2a330f7ff1041eaa7cba3ef42121b1a8) )
	ROM_LOAD( "mastboy_27256.ic10", 0x60000, 0x08000, CRC(b92ffd4f) SHA1(34431d6771e58f2ec083756f07e8b2a02bdb0e5a) )
	ROM_LOAD( "mastboy_27256.ic9",  0x68000, 0x08000, CRC(266e7d37) SHA1(39b5e4ff4475393126a97c8b51980bfc1b7b2627) )

	ROM_LOAD( "mastboy_27256.ic12", 0x70000, 0x08000, CRC(efb4b2f9) SHA1(c68f7d83549b554d25f7404a758f48f962622a2d) )
	ROM_LOAD( "mastboy_27256.ic11", 0x78000, 0x08000, CRC(f2611186) SHA1(05860fecc23014c39cb28762763e94bc91412b34) )

	ROM_REGION( 0x100, "proms", 0 ) // timing or memory mapping?
	ROM_LOAD( "d_82s129.ic23", 0x000, 0x100, CRC(d5fd2dfd) SHA1(66e3afa9e73507db0647d125c0be992b27d08adc) )

	ROM_REGION( 0x200, "palette", 0 )
	ROM_LOAD( "h_82s129.ic39", 0x100, 0x100, CRC(8e965fc3) SHA1(b52c8e505438937c7a5d3e1393d54f0ad0425e78) )
	ROM_LOAD( "l_82s129.ic40", 0x000, 0x100, CRC(4d061216) SHA1(1abf9320da75a3fd23c6bdbcc4088d18e133c4e5) )
ROM_END

/*
  This set has the 78000-80000 range filled with 0xFF's.
  There are more questions banks inside this range in
  the parent set.

*/
ROM_START( mastboyoa )
	ROM_REGION( 0x04000, "maincpu", 0 )
	ROM_LOAD( "masterboy-1987-27128-ic14.bin", 0x00000, 0x04000, CRC(d05a22eb) SHA1(528eb27622d28d098ceefc6a6fb43bb1a527444d) )

	ROM_REGION( 0x04000, "gfx1", 0 )
	ROM_LOAD( "masterboy-1987-27128-mbfij-ic36.bin", 0x00000, 0x04000, CRC(aa2a174d) SHA1(a27eae023453877131646594100b575af7a3c473) )

	ROM_REGION( 0x80000, "questions", ROMREGION_ERASEFF )
	/* IC6 - IC9 empty */
	ROM_LOAD( "masterboy-1987-27c512-ic10.bin", 0x40000, 0x10000, CRC(66da2826) SHA1(ef86efbfa251fc7cf62fe99b26551203fd599294) )
	ROM_LOAD( "masterboy-1987-27256-ic11.bin",  0x50000, 0x08000, CRC(40b07eeb) SHA1(93f62e0a2a330f7ff1041eaa7cba3ef42121b1a8) )  // Identical to ic8 from the parent.
	ROM_LOAD( "masterboy-1987-27c512-ic12.bin", 0x60000, 0x10000, CRC(b2819e38) SHA1(e4dd036747221926d0f9f86e00e28f578decc942) )
	ROM_LOAD( "masterboy-1987-27c512-ic13.bin", 0x70000, 0x10000, CRC(71df82e9) SHA1(a0d75ec1181094e39d2246805e4dac5a621daa1a) )  // Second half is filled with 0xff's.

	ROM_REGION( 0x100, "proms", 0 ) // timing or memory mapping?
	ROM_LOAD( "masterboy-1987-82s129-d-ic23.bin", 0x000, 0x100, CRC(d5fd2dfd) SHA1(66e3afa9e73507db0647d125c0be992b27d08adc) )  // Identical to the parent set.

	ROM_REGION( 0x200, "palette", 0 )
	ROM_LOAD( "masterboy-1987-82s129-h-ic39.bin", 0x100, 0x100, CRC(8e965fc3) SHA1(b52c8e505438937c7a5d3e1393d54f0ad0425e78) )  // Identical to the parent set.
	ROM_LOAD( "masterboy-1987-82s129-l-ic40.bin", 0x000, 0x100, CRC(4d061216) SHA1(1abf9320da75a3fd23c6bdbcc4088d18e133c4e5) )  // Identical to the parent set.
ROM_END

ROM_START( mastboyob )
	ROM_REGION( 0x4000, "maincpu", 0 )
	ROM_LOAD( "mb_p1.ic14", 0x0000, 0x4000, CRC(9ff8d386) SHA1(4bf0df6d5cb605f2a4c9ef3cf0ece229ce8cbb40) ) // masterboy-1987-27128-ic14.bin       43.347168%

	ROM_REGION( 0x4000, "gfx1", 0 )
	ROM_LOAD( "fij.c36", 0x0000, 0x4000, CRC(bdd0f821) SHA1(63f607bccf1eded92531b2a10605d0578d371f77) ) // masterboy-1987-27128-mbfij-ic36.bin    97.308350%

	ROM_REGION( 0x80000, "questions", ROMREGION_ERASEFF )
	ROM_LOAD( "mb_3.ic9",  0x60000, 0x08000, CRC(b92ffd4f) SHA1(34431d6771e58f2ec083756f07e8b2a02bdb0e5a) ) // mastboy_27256.ic10    IDENTICAL
	ROM_LOAD( "mb_4.ic8",  0x68000, 0x08000, CRC(c4844264) SHA1(e8a45b87878f95ad4590ad5e19c15339fde1a762) ) // mastboy_27256.ic9     99.996948%
	ROM_LOAD( "mb_1.ic11", 0x70000, 0x08000, CRC(f5a9bf63) SHA1(53890e615cd73809c950a302bb423ec111ee493b) ) // mastboy_27256.ic12    99.996948%
	ROM_LOAD( "mb_2.ic10", 0x78000, 0x08000, CRC(f2611186) SHA1(05860fecc23014c39cb28762763e94bc91412b34) ) // mastboy_27256.ic11    IDENTICAL

	ROM_REGION( 0x100, "proms", 0 ) // timing or memory mapping?
	ROM_LOAD( "d_82s129.ic23", 0x000, 0x100, CRC(d5fd2dfd) SHA1(66e3afa9e73507db0647d125c0be992b27d08adc) )

	ROM_REGION( 0x200, "palette", 0 )
	ROM_LOAD( "h_82s129.ic39", 0x100, 0x100, CRC(8e965fc3) SHA1(b52c8e505438937c7a5d3e1393d54f0ad0425e78) )
	ROM_LOAD( "l_82s129.ic40", 0x000, 0x100, CRC(4d061216) SHA1(1abf9320da75a3fd23c6bdbcc4088d18e133c4e5) )
ROM_END

GAME( 1987, mastboyo,  0,        mastboyo, mastboyo, mastboyo_state, empty_init, ROT0, "Gaelco (Covielsa license)",    "Master Boy (1987, Z80 hardware, Covielsa, set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1987, mastboyoa, mastboyo, mastboyo, mastboyo, mastboyo_state, empty_init, ROT0, "Gaelco (Covielsa license)",    "Master Boy (1987, Z80 hardware, Covielsa, set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1987, mastboyob, mastboyo, mastboyo, mastboyo, mastboyo_state, empty_init, ROT0, "Gaelco (Ichi-Funtel license)", "Master Boy (1987, Z80 hardware, Ichi-Funtel)", MACHINE_SUPPORTS_SAVE )