/*
Egg Hunt
hardware seems close to mitchell.c
--
palette format is different
has a sound cpu
ports shuffled around a bit
the following string is at the start of the roms
INVI IMAGE COPYWRITE 1995 OCT SEOUL IN KOREA
TEL 02-569-5830
PROGRMED BY JANG-K.Y
GRAPHIC DESIGN KIM-Y.H & LEE-H.M
(and in the sound program)
SOUND DIRECTOR LEE-S.O
the screen says VH-K October 1995, are VH-K another company involved?
---------------------
Egghunt by Invi Image
PCB marked "Invi Image Co. 1995 IZ80B-1"
The pcb has poor quality and resemble a bootleg.
2x Z80
1x AD65 (oki 6295 probably)
1x OSc 12mhz
1x OSC 30mhz
1x FPGA
2x Dipswitch
Note: rom 3 has the 16th pin overlapped and soldered to 15th....it seems it's a manufacturer choice since pin 16 on the socket is not connected with any trace on the pcb
I dumped it with this configuration. In case I'll redump it desoldering pin 16 from 15
*/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/okim6295.h"
class egghunt_state : public driver_device
{
public:
egghunt_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_atram(*this, "atram"){ }
/* video-related */
tilemap_t *m_bg_tilemap;
UINT8 m_vidram_bank;
/* misc */
UINT8 m_okibanking;
UINT8 m_gfx_banking;
/* devices */
cpu_device *m_audiocpu;
/* memory */
required_shared_ptr<UINT8> m_atram;
UINT8 m_bgram[0x1000];
UINT8 m_spram[0x1000];
DECLARE_READ8_MEMBER(egghunt_bgram_r);
DECLARE_WRITE8_MEMBER(egghunt_bgram_w);
DECLARE_WRITE8_MEMBER(egghunt_atram_w);
DECLARE_WRITE8_MEMBER(egghunt_gfx_banking_w);
DECLARE_WRITE8_MEMBER(egghunt_vidram_bank_w);
DECLARE_WRITE8_MEMBER(egghunt_soundlatch_w);
DECLARE_READ8_MEMBER(egghunt_okibanking_r);
DECLARE_WRITE8_MEMBER(egghunt_okibanking_w);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
UINT32 screen_update_egghunt(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap,const rectangle &cliprect )
{
egghunt_state *state = machine.driver_data<egghunt_state>();
int flipscreen = 0;
int offs, sx, sy;
for (offs = 0x1000 - 0x40; offs >= 0; offs -= 0x20)
{
int code = state->m_spram[offs];
int attr = state->m_spram[offs + 1];
int color = attr & 0x0f;
sx = state->m_spram[offs + 3] + ((attr & 0x10) << 4);
sy = ((state->m_spram[offs + 2] + 8) & 0xff) - 8;
code += (attr & 0xe0) << 3;
if (attr & 0xe0)
{
switch(state->m_gfx_banking & 0x30)
{
// case 0x00:
// case 0x10: code += 0; break;
case 0x20: code += 0x400; break;
case 0x30: code += 0x800; break;
}
}
if (flipscreen)
{
sx = 496 - sx;
sy = 240 - sy;
}
drawgfx_transpen(bitmap,cliprect,machine.gfx[1],
code,
color,
flipscreen,flipscreen,
sx,sy,15);
}
}
TILE_GET_INFO_MEMBER(egghunt_state::get_bg_tile_info)
{
int code = ((m_bgram[tile_index * 2 + 1] << 8) | m_bgram[tile_index * 2]) & 0x3fff;
int colour = m_atram[tile_index] & 0x3f;
if(code & 0x2000)
{
if((m_gfx_banking & 3) == 2)
code += 0x2000;
else if((m_gfx_banking & 3) == 3)
code += 0x4000;
// else if((m_gfx_banking & 3) == 1)
// code += 0;
}
SET_TILE_INFO_MEMBER(0, code, colour, 0);
}
READ8_MEMBER(egghunt_state::egghunt_bgram_r)
{
if (m_vidram_bank)
{
return m_spram[offset];
}
else
{
return m_bgram[offset];
}
}
WRITE8_MEMBER(egghunt_state::egghunt_bgram_w)
{
if (m_vidram_bank)
{
m_spram[offset] = data;
}
else
{
m_bgram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset / 2);
}
}
WRITE8_MEMBER(egghunt_state::egghunt_atram_w)
{
m_atram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
void egghunt_state::video_start()
{
m_bg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(egghunt_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 64, 32);
save_item(NAME(m_bgram));
save_item(NAME(m_spram));
}
UINT32 egghunt_state::screen_update_egghunt(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg_tilemap->draw(bitmap, cliprect, 0, 0);
draw_sprites(machine(), bitmap, cliprect);
return 0;
}
WRITE8_MEMBER(egghunt_state::egghunt_gfx_banking_w)
{
// data & 0x03 is used for tile banking
// data & 0x30 is used for sprites banking
m_gfx_banking = data & 0x33;
m_bg_tilemap->mark_all_dirty();
}
WRITE8_MEMBER(egghunt_state::egghunt_vidram_bank_w)
{
m_vidram_bank = data & 1;
}
WRITE8_MEMBER(egghunt_state::egghunt_soundlatch_w)
{
soundlatch_byte_w(space, 0, data);
m_audiocpu->set_input_line(0, HOLD_LINE);
}
READ8_MEMBER(egghunt_state::egghunt_okibanking_r)
{
return m_okibanking;
}
WRITE8_MEMBER(egghunt_state::egghunt_okibanking_w)
{
okim6295_device *oki = machine().device<okim6295_device>("oki");
m_okibanking = data;
oki->set_bank_base((data & 0x10) ? 0x40000 : 0);
}
static ADDRESS_MAP_START( egghunt_map, AS_PROGRAM, 8, egghunt_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0xc000, 0xc7ff) AM_RAM_WRITE(paletteram_xRRRRRGGGGGBBBBB_byte_le_w) AM_SHARE("paletteram")
AM_RANGE(0xc800, 0xcfff) AM_RAM_WRITE(egghunt_atram_w) AM_SHARE("atram")
AM_RANGE(0xd000, 0xdfff) AM_READWRITE(egghunt_bgram_r, egghunt_bgram_w)
AM_RANGE(0xe000, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( io_map, AS_IO, 8, egghunt_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_READ_PORT("DSW1") AM_WRITE(egghunt_vidram_bank_w)
AM_RANGE(0x01, 0x01) AM_READ_PORT("SYSTEM") AM_WRITE(egghunt_gfx_banking_w)
AM_RANGE(0x02, 0x02) AM_READ_PORT("P1")
AM_RANGE(0x03, 0x03) AM_READ_PORT("P2") AM_WRITE(egghunt_soundlatch_w)
AM_RANGE(0x04, 0x04) AM_READ_PORT("DSW2")
AM_RANGE(0x06, 0x06) AM_READ_PORT("UNK") AM_WRITENOP
AM_RANGE(0x07, 0x07) AM_WRITENOP
ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8, egghunt_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0xe000, 0xe000) AM_READ(soundlatch_byte_r)
AM_RANGE(0xe001, 0xe001) AM_READWRITE(egghunt_okibanking_r, egghunt_okibanking_w)
AM_RANGE(0xe004, 0xe004) AM_DEVREADWRITE("oki", okim6295_device, read, write)
AM_RANGE(0xf000, 0xffff) AM_RAM
ADDRESS_MAP_END
static INPUT_PORTS_START( egghunt )
PORT_START("DSW1")
PORT_DIPNAME( 0x01, 0x01, "Debug Mode" ) // Run all the animations
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( 0x60, 0x60, "Credits per Player" )
PORT_DIPSETTING( 0x60, "1" )
// PORT_DIPSETTING( 0x20, "2" ) /* One of these maybe 2 to start 1 to continue */
PORT_DIPSETTING( 0x40, "2" )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("SYSTEM")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_START("P1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
PORT_START("P2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
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, 0x00, "Censor Pictures" )
PORT_DIPSETTING( 0x00, DEF_STR( No ) )
PORT_DIPSETTING( 0x80, DEF_STR( Yes ) )
PORT_START("UNK")
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
static const gfx_layout tiles8x8_layout =
{
8,8,
RGN_FRAC(1,4),
4,
{ RGN_FRAC(2,4),RGN_FRAC(3,4),RGN_FRAC(0,4),RGN_FRAC(1,4) },
{ 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
};
static const gfx_layout tiles16x16_layout =
{
16,16,
RGN_FRAC(1,4),
4,
{ RGN_FRAC(2,4),RGN_FRAC(3,4),RGN_FRAC(0,4),RGN_FRAC(1,4) },
{ 4, 5, 6, 7,0, 1, 2, 3, 16*8+4,16*8+5,16*8+6,16*8+7,16*8+0,16*8+1,16*8+2,16*8+3 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,8*8,9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
16*16
};
static GFXDECODE_START( egghunt )
GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 64 )
GFXDECODE_ENTRY( "gfx2", 0, tiles16x16_layout, 0, 64 )
GFXDECODE_END
void egghunt_state::machine_start()
{
m_audiocpu = machine().device<cpu_device>("audiocpu");
save_item(NAME(m_gfx_banking));
save_item(NAME(m_okibanking));
save_item(NAME(m_vidram_bank));
}
void egghunt_state::machine_reset()
{
m_gfx_banking = 0;
m_okibanking = 0;
m_vidram_bank = 0;
}
static MACHINE_CONFIG_START( egghunt, egghunt_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80,12000000/2) /* 6 MHz ?*/
MCFG_CPU_PROGRAM_MAP(egghunt_map)
MCFG_CPU_IO_MAP(io_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", egghunt_state, irq0_line_hold) // or 2 like mitchell.c?
MCFG_CPU_ADD("audiocpu", Z80,12000000/2) /* 6 MHz ?*/
MCFG_CPU_PROGRAM_MAP(sound_map)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(8*8, 56*8-1, 1*8, 31*8-1)
MCFG_SCREEN_UPDATE_DRIVER(egghunt_state, screen_update_egghunt)
MCFG_GFXDECODE(egghunt)
MCFG_PALETTE_LENGTH(0x400)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
ROM_START( egghunt )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_LOAD( "prg.bin", 0x00000, 0x20000, CRC(eb647145) SHA1(792951b76b5fac01e72ae34a2fe2108e373c5b62) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "rom2.bin", 0x00000, 0x10000, CRC(88a71bc3) SHA1(cf5acccfda9fda0d55af91a415a54391d0d0b7a2) )
ROM_REGION( 0x100000, "gfx1", ROMREGION_INVERT )
ROM_LOAD( "rom3.bin", 0x00000, 0x40000, CRC(9d51ac49) SHA1(b0785d746fb2872a04386016ffdee80e6174dfc0) )
ROM_LOAD( "rom4.bin", 0x40000, 0x40000, CRC(41c63041) SHA1(24e9a21d448c144db2356329cf87dc99598c96dc) )
ROM_LOAD( "rom5.bin", 0x80000, 0x40000, CRC(6f96cb97) SHA1(7dde7d2aec6b5f9929b98d06c07bb07bf7bd59dd) )
ROM_LOAD( "rom6.bin", 0xc0000, 0x40000, CRC(b5a41d4b) SHA1(1b4cf9c944e3eb7dc2d26d8a73bf5efb7b53253a) )
ROM_REGION( 0x80000, "gfx2", ROMREGION_INVERT )
ROM_LOAD( "rom7.bin", 0x00000, 0x20000, CRC(1b43fb57) SHA1(f06e186bf514f2ad655df23636eab72e6fafd815) )
ROM_LOAD( "rom8.bin", 0x20000, 0x20000, CRC(f8122d0d) SHA1(78551c689b9e4eeed5e1ae97d8c7a907a388a9ff) )
ROM_LOAD( "rom9.bin", 0x40000, 0x20000, CRC(dbfa0ffe) SHA1(2aa759c0bd3945473a6d8fa48226ce6c6c94d740) )
ROM_LOAD( "rom10.bin",0x60000, 0x20000, CRC(14f5fc74) SHA1(769bccf9c1b42c35c3aee3866ed015de7c83b710) )
ROM_REGION( 0x80000, "oki", 0 )
ROM_LOAD( "rom1.bin", 0x00000, 0x80000, CRC(f03589bc) SHA1(4d9c8422ac3c4c3ecba3bcf0ed47b8c7d5903f8c) )
ROM_END
GAME( 1995, egghunt, 0, egghunt, egghunt, driver_device, 0, ROT0, "Invi Image", "Egg Hunt", GAME_SUPPORTS_SAVE )