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Diffstat (limited to 'trunk/src/mame/drivers/mainsnk.c')
-rw-r--r--trunk/src/mame/drivers/mainsnk.c496
1 files changed, 496 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/mainsnk.c b/trunk/src/mame/drivers/mainsnk.c
new file mode 100644
index 00000000000..eae3a11ce74
--- /dev/null
+++ b/trunk/src/mame/drivers/mainsnk.c
@@ -0,0 +1,496 @@
+/*
+Main Event - SNK 1984
+Canvas Croquis - SNK 1985
+
+driver by David Haywood, Tomasz Slanina
+
+
+Notes:
+------
+- mainsnk controls:
+ The game uses 2 joysticks (with button on top) and 2 buttons per player.
+ Left stick
+ up: left straight punch to enemy's face
+ left: swey to left
+
+ Right stick
+ up: right straight punch to enemy's face
+ right: swey to right
+
+ Left + Right stick combinations
+ L down + R up: right straight punch to enemy's body
+ L up + R down: left straight punch to enemy's body
+ L right + R left: guard player's body
+
+ to move the boxer, use joystick while pressing the button on top of the stick.
+
+ Left button: left uppercut
+ Right button: right uppercut
+ to recover from down, press these buttons rapidly.
+
+
+- canvas doesn't use the tx layer, though the circuitry is presumably still
+ present on the pcb. One gfx ROM socket is left empty which causes the tx layer
+ to be completely transparent.
+
+- neither mainsnk nor canvas pass the ROM test in service mode. This looks like
+ a bug (as in madcrash). SNK obviously didn't pay too much attention to details
+ in those days.
+ Note that in canvas you can't see the error since the tx layer is transparent.
+ Load cc_p9.a2 at 0x0000 to see it.
+
+TODO:
+-----
+- are mainsnk control right? The way the button works is awkward.
+
+- several unknown dip switches
+
+- the hardware surely supports sprite shadows as most of the games in snk.c, but
+ the feature isn't used by these two games.
+
+- mainsnk doesn't seem to write to the bg/sprite scroll registers? SO I hardcoded
+ scroll values for these two games, even if canvas does seem to write to them.
+
+- canvas writes to several unknown addresses on startup. Most of them should be
+ the scroll registers while others are unknown.
+
+- the bg tilemap is set to 256x256, however it could well be 512x256 as in the
+ other early SNK games in snk.c.
+
+-----
+
+Canvas Croquis
+
+file : readme.txt
+author : Stefan Lindberg
+created: 2005-12-24
+updated: *
+version: 1.0
+
+Canvas Croquis, SNK 1984
+
+Note:
+
+The bproms(MB7054) was read as 74s572.
+I have not tested this PCB yet so i have no idea if it's workin.
+All Bproms and P1-P8 is on top pcb, P9-P14 on bottom board, see pictures.
+
+Documentation:
+
+Name Size CRC32
+-----------------------------------------------------------
+cc_top_pcb.jpg 974024 0xd2fb553e
+cc_bottom_pcb.jpg 964448 0xe8bad203
+Roms:
+Name Size CRC32 Chip Type
+-----------------------------------------------------------
+cc_bprom1.j10 1024 0xfbbbf911 MB7054 (read as 74s572)
+cc_bprom2.j9 1024 0x19efe7df MB7054 (read as 74s572)
+cc_bprom3.j8 1024 0x21f72498 MB7054 (read as 74s572)
+cc_p1.a2 8192 0xfa7109e1 M5L2764k
+cc_p2.a3 8192 0x8b8beb34 M5L2764k
+cc_p3.a4 8192 0xea342f87 M5L2764k
+cc_p4.a5 8192 0x9cf35d98 M5L2764k
+cc_p5.a7 8192 0xc5ef1eda M5L2764k
+cc_p6.a8 8192 0x7b1dd7fc M5L2764k
+cc_p7.h2 16384 0x029b5ea0 M5L27128k
+cc_p8.f2 8192 0x0f0368ce M5L2764k
+cc_p9.a2 16384 0xb58c5f24 M5L27128k
+cc_p10.b2 16384 0x3c0a4eeb M5L27128k
+cc_p11.c2 16384 0x4c8c2156 M5L27128k
+cc_p12.j8 8192 0x9003a979 M5L2764k
+cc_p13.j5 8192 0xa52cd549 M5L2764k
+cc_p14.j2 8192 0xedc6a1eb M5L2764k
+
+. Board supplied by Stefan Lindberg
+. Board dumped by Stefan Lindberg
+
+*/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "sound/ay8910.h"
+#include "includes/mainsnk.h"
+
+static WRITE8_HANDLER( sound_command_w )
+{
+ mainsnk_state *state = space->machine().driver_data<mainsnk_state>();
+
+ state->m_sound_cpu_busy = 1;
+ soundlatch_w(space, 0, data);
+ cputag_set_input_line(space->machine(), "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
+}
+
+static READ8_HANDLER( sound_command_r )
+{
+ return soundlatch_r(space, 0);
+}
+
+static READ8_HANDLER( sound_ack_r )
+{
+ mainsnk_state *state = space->machine().driver_data<mainsnk_state>();
+
+ state->m_sound_cpu_busy = 0;
+ return 0xff;
+}
+
+static CUSTOM_INPUT( mainsnk_sound_r )
+{
+ mainsnk_state *state = field.machine().driver_data<mainsnk_state>();
+
+ return (state->m_sound_cpu_busy) ? 0x01 : 0x00;
+}
+
+
+
+static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0xbfff) AM_ROM
+ AM_RANGE(0xc000, 0xc000) AM_READ_PORT("IN0")
+ AM_RANGE(0xc100, 0xc100) AM_READ_PORT("IN1")
+ AM_RANGE(0xc200, 0xc200) AM_READ_PORT("IN2")
+ AM_RANGE(0xc300, 0xc300) AM_READ_PORT("IN3")
+ AM_RANGE(0xc400, 0xc400) AM_READ_PORT("DSW1")
+ AM_RANGE(0xc500, 0xc500) AM_READ_PORT("DSW2")
+ AM_RANGE(0xc600, 0xc600) AM_WRITE(mainsnk_c600_w)
+ AM_RANGE(0xc700, 0xc700) AM_WRITE(sound_command_w)
+ AM_RANGE(0xd800, 0xdbff) AM_RAM_WRITE(mainsnk_bgram_w) AM_BASE_MEMBER(mainsnk_state, m_bgram)
+ AM_RANGE(0xdc00, 0xe7ff) AM_RAM
+ AM_RANGE(0xe800, 0xefff) AM_RAM AM_BASE_MEMBER(mainsnk_state, m_spriteram)
+ AM_RANGE(0xf000, 0xf7ff) AM_RAM_WRITE(mainsnk_fgram_w) AM_BASE_MEMBER(mainsnk_state, m_fgram) // + work RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_ROM
+ AM_RANGE(0x8000, 0x87ff) AM_RAM
+ AM_RANGE(0xa000, 0xa000) AM_READ(sound_command_r)
+ AM_RANGE(0xc000, 0xc000) AM_READ(sound_ack_r)
+ AM_RANGE(0xe000, 0xe001) AM_DEVWRITE("ay1", ay8910_address_data_w)
+ AM_RANGE(0xe002, 0xe003) AM_WRITENOP // ? always FFFF, snkwave leftover?
+ AM_RANGE(0xe008, 0xe009) AM_DEVWRITE("ay2", ay8910_address_data_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_portmap, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_READNOP
+ADDRESS_MAP_END
+
+
+
+static INPUT_PORTS_START( mainsnk )
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SERVICE1 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(mainsnk_sound_r, NULL) /* sound CPU status */
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_UP )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_DOWN )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_LEFT )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_RIGHT )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_UP )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_DOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_LEFT )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_RIGHT )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICKLEFT_RIGHT ) PORT_PLAYER(2)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICKRIGHT_RIGHT ) PORT_PLAYER(2)
+
+ PORT_START("IN3")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) // button on top of left stick
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) // button on top of right stick
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON3 ) // left button
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) // right button
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2)
+
+ // the manual only mentions one dip switch apparently.
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:1")
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:2")
+ PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:3")
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:4")
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:5")
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:6")
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:7")
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:8")
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) ) PORT_DIPLOCATION("DSW2:1,2,3")
+// PORT_DIPSETTING( 0x04, DEF_STR( 3C_1C ) ) // duplicate
+// PORT_DIPSETTING( 0x02, DEF_STR( 3C_1C ) ) // duplicate
+ PORT_DIPSETTING( 0x01, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("DSW2:4")
+ PORT_DIPSETTING( 0x08, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Hard ) )
+ PORT_DIPNAME( 0x10, 0x10, "Round Time" ) PORT_DIPLOCATION("DSW2:5") /* $1ecf */
+ PORT_DIPSETTING( 0x10, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x00, "Short" )
+ PORT_DIPNAME( 0x60, 0x20, "Game mode" ) PORT_DIPLOCATION("DSW2:6,7")
+ PORT_DIPSETTING( 0x60, "Demo Sounds Off" )
+ PORT_DIPSETTING( 0x20, "Demo Sounds On" )
+ PORT_DIPSETTING( 0x00, "Freeze" )
+ PORT_DIPSETTING( 0x40, "Endless Game (Cheat)" )
+ PORT_DIPNAME( 0x80, 0x80, "2 Players Game" ) PORT_DIPLOCATION("DSW2:8")
+ PORT_DIPSETTING( 0x80, "1 Credit" )
+ PORT_DIPSETTING( 0x00, "2 Credits" )
+INPUT_PORTS_END
+
+static INPUT_PORTS_START( canvas )
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SERVICE1 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(mainsnk_sound_r, NULL) /* sound CPU status */
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("IN3")
+ PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:1")
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("DSW1:2")
+ PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Cocktail ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Lives ) ) PORT_DIPLOCATION("DSW1:3")
+ PORT_DIPSETTING( 0x04, "3" )
+ PORT_DIPSETTING( 0x00, "5" )
+ PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coinage ) ) PORT_DIPLOCATION("DSW1:4,5,6")
+// PORT_DIPSETTING( 0x08, DEF_STR( 5C_1C ) ) // duplicate
+ PORT_DIPSETTING( 0x10, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x18, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x38, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x28, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:7") // bonus life?
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:8") // bonus life?
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:1") // bonus life?
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:2") // difficulty?
+ PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:3") // difficulty?
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x18, 0x10, "Game mode" ) PORT_DIPLOCATION("DSW2:4,5")
+ PORT_DIPSETTING( 0x18, "Demo Sounds Off" )
+ PORT_DIPSETTING( 0x10, "Demo Sounds On" )
+ PORT_DIPSETTING( 0x00, "Freeze" )
+ PORT_DIPSETTING( 0x08, "Infinite Lives (Cheat)" )
+ PORT_DIPNAME( 0x20, 0x00, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("DSW2:6")
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:7")
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, "Must Be On" ) PORT_DIPLOCATION("DSW2:8")
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) ) // needs to be on otherwise pictures in later levels are wrong
+INPUT_PORTS_END
+
+
+static const gfx_layout tile_layout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 1, 2, 3 },
+ { 4, 0, 12, 8, 20, 16, 28, 24},
+ { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
+ 256
+};
+
+
+static const gfx_layout sprite_layout =
+{
+ 16,16,
+ RGN_FRAC(1,3),
+ 3,
+ { RGN_FRAC(2,3),RGN_FRAC(1,3),RGN_FRAC(0,3) },
+ { 7,6,5,4,3,2,1,0, 15,14,13,12,11,10,9,8 },
+ { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16,
+ 8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16 },
+ 256
+};
+
+
+static GFXDECODE_START( mainsnk )
+ GFXDECODE_ENTRY( "gfx1", 0, tile_layout, 0x100, 0x080>>4 )
+ GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 0x000, 0x080>>3 )
+GFXDECODE_END
+
+
+
+static MACHINE_CONFIG_START( mainsnk, mainsnk_state )
+
+ MCFG_CPU_ADD("maincpu", Z80, 3360000)
+ MCFG_CPU_PROGRAM_MAP(main_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)
+
+ MCFG_CPU_ADD("audiocpu", Z80,4000000)
+ MCFG_CPU_PROGRAM_MAP(sound_map)
+ MCFG_CPU_IO_MAP(sound_portmap)
+ MCFG_CPU_PERIODIC_INT(irq0_line_hold, 244)
+
+ /* video hardware */
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_HAS_SHADOWS)
+
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(36*8, 28*8)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 1*8, 28*8-1)
+ MCFG_SCREEN_UPDATE(mainsnk)
+
+ MCFG_GFXDECODE(mainsnk)
+ MCFG_PALETTE_LENGTH(0x400)
+
+ MCFG_PALETTE_INIT(mainsnk)
+ MCFG_VIDEO_START(mainsnk)
+
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("ay1", AY8910, 2000000)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.35)
+
+ MCFG_SOUND_ADD("ay2", AY8910, 2000000)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.35)
+MACHINE_CONFIG_END
+
+
+ROM_START( mainsnk)
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "snk.p01", 0x0000, 0x2000, CRC(00db1ca2) SHA1(efe83488cf88adc185e6024b8f6ad5f8ef7f4cfd) )
+ ROM_LOAD( "snk.p02", 0x2000, 0x2000, CRC(df5c86b5) SHA1(e9c854524e3d8231c874314cdff321e66ec7f0c4) )
+ ROM_LOAD( "snk.p03", 0x4000, 0x2000, CRC(5c2b7bca) SHA1(e02c72fcd029999b730abd91f07866418cfe6216) )
+ ROM_LOAD( "snk.p04", 0x6000, 0x2000, CRC(68b4b2a1) SHA1(8f3abc826df93f0748151624066e956b9670bc9d) )
+ ROM_LOAD( "snk.p05", 0x8000, 0x2000, CRC(580a29b4) SHA1(4a96af92d65f86aca7f3a70032b5e4dc29048483) )
+ ROM_LOAD( "snk.p06", 0xa000, 0x2000, CRC(5f8a60a2) SHA1(88a051e13d6b3bbd3606a4c4cc0395da07e0f109) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "snk.p07", 0x0000, 0x4000, CRC(4208391e) SHA1(d110ca4ff9d21fe7813f04ec43c2c23471c6517f) )
+
+ ROM_REGION( 0x08000, "gfx1", 0 )
+ ROM_LOAD( "snk.p12", 0x0000, 0x2000, CRC(ecf87eb7) SHA1(83b8d19070d5930b306a0309ebba05b04c2abebf) )
+ ROM_LOAD( "snk.p11", 0x2000, 0x2000, CRC(3f6bc5ba) SHA1(02e49f58f5d94117113b59037fa49b8897d05b4b) )
+ ROM_LOAD( "snk.p10", 0x4000, 0x2000, CRC(b5147a96) SHA1(72641fadabd16f2de4f4cf6ff3ef07233de5ddfd) )
+ ROM_LOAD( "snk.p09", 0x6000, 0x2000, CRC(0ebcf837) SHA1(7b93cdffd3b8d768b98bb01956114e4ff012d029) )
+
+ ROM_REGION( 0x12000, "gfx2", 0 )
+ ROM_LOAD( "snk.p13", 0x00000, 0x2000, CRC(2eb624a4) SHA1(157d7beb6ff0baa9276e388774a85996dc03821d) )
+ ROM_LOAD( "snk.p16", 0x02000, 0x2000, CRC(dc502869) SHA1(024c868e8cd74c52f4787a19b9ad292b7a9dcc1c) )
+ ROM_LOAD( "snk.p19", 0x04000, 0x2000, CRC(58d566a1) SHA1(1451b223ddb7c975b770f28af6c41775daaf95c1) )
+ ROM_LOAD( "snk.p14", 0x06000, 0x2000, CRC(bb927d82) SHA1(ac7ae1850cf22b73e31c92b6f598fb057470a570) )
+ ROM_LOAD( "snk.p17", 0x08000, 0x2000, CRC(66f60c32) SHA1(7a08d0a2c1804cdaad702a23ff33128d0b6d8084) )
+ ROM_LOAD( "snk.p20", 0x0a000, 0x2000, CRC(d12c6333) SHA1(bed1a0aedaa8f6fe9c33f49b5da00ab1c9045ddd) )
+ ROM_LOAD( "snk.p15", 0x0c000, 0x2000, CRC(d242486d) SHA1(0c24a3fdcb604b6231b75069c99009d68023bb8f) )
+ ROM_LOAD( "snk.p18", 0x0e000, 0x2000, CRC(838b12a3) SHA1(a3444f9b2aeef70caa93e5f642cb6c3b75e88ea4) )
+ ROM_LOAD( "snk.p21", 0x10000, 0x2000, CRC(8961a51e) SHA1(4f9d8358bc76118c4fab631ae73a02ab5aa0c036) )
+
+ ROM_REGION( 0x1000, "proms", 0 ) // overdumps? 2nd half is empty
+ ROM_LOAD( "main3.bin", 0x0000, 0x0800, CRC(78b29dde) SHA1(c2f93cde6fd8bc175e9e0d38af41b7710d7f1c82) )
+ ROM_LOAD( "main2.bin", 0x0400, 0x0800, CRC(7c314c93) SHA1(c6bd2a0eaf617448ef65dcbadced313b0d69ab88) )
+ ROM_LOAD( "main1.bin", 0x0800, 0x0800, CRC(deb895c4) SHA1(f1281dcb3471d9627565706ff09ba72f09dc62a4) )
+ROM_END
+
+ROM_START( canvas )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "cc_p1.a2", 0x0000, 0x2000, CRC(fa7109e1) SHA1(23e31e14af2171ee2fd7290194805b95b0f7b35c) )
+ ROM_LOAD( "cc_p2.a3", 0x2000, 0x2000, CRC(8b8beb34) SHA1(c678ed7ec302eaac3594950f10f0a170353345e5) )
+ ROM_LOAD( "cc_p3.a4", 0x4000, 0x2000, CRC(ea342f87) SHA1(087e1260ba51bf47bf19942b59d21d067515989d) )
+ ROM_LOAD( "cc_p4.a5", 0x6000, 0x2000, CRC(9cf35d98) SHA1(08de7863f1a540b69487c87eb0a493ceeacffa1b) )
+ ROM_LOAD( "cc_p5.a7", 0x8000, 0x2000, CRC(c5ef1eda) SHA1(31cf3e7fe52718bebffdac9b3666454b0956a6d9) )
+ ROM_LOAD( "cc_p6.a8", 0xa000, 0x2000, CRC(7b1dd7fc) SHA1(1287ab261885d5e9ba957024d7a00c7a0d31235b) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "cc_p7.h2", 0x0000, 0x4000, CRC(029b5ea0) SHA1(88f84b4dd01656ded8d983396ded404c9d8186f1) )
+ ROM_LOAD( "cc_p8.f2", 0x4000, 0x2000, CRC(0f0368ce) SHA1(a02f066ea024285a931b85709822a50a4099e0b0) )
+
+ ROM_REGION( 0x10000, "gfx1", 0 )
+ ROM_FILL( 0x0000, 0x4000, 0xff ) // empty, causes tx layer to be fully transparent
+ ROM_LOAD( "cc_p11.c2", 0x4000, 0x4000, CRC(4c8c2156) SHA1(7f1d9a1e1c6cab91f24c7fc75d0c7ec2702137af) ) // banks = 18&58
+ ROM_LOAD( "cc_p10.b2", 0x8000, 0x4000, CRC(3c0a4eeb) SHA1(53742a5bef16e71bebefb0e43a175341f5bf0aa6) ) // banks = 28&68
+ ROM_LOAD( "cc_p9.a2", 0xc000, 0x4000, CRC(b58c5f24) SHA1(7026b3d4f8060fd6607eb6d356d6b61cc9cb75c3) ) // banks = 30&70
+
+ ROM_REGION( 0x6000, "gfx2", 0 )
+ ROM_LOAD( "cc_p12.j8", 0x0000, 0x2000, CRC(9003a979) SHA1(f63959a9dc9ee67622865e783d2e501c640a4bed) )
+ ROM_LOAD( "cc_p13.j5", 0x2000, 0x2000, CRC(a52cd549) SHA1(1902b8c107c5156113068ced74349ac576ac047c) )
+ ROM_LOAD( "cc_p14.j2", 0x4000, 0x2000, CRC(edc6a1e8) SHA1(8c948a5f057e13bb9ed9738b66c702f45586fe59) )
+
+ ROM_REGION( 0x0c00, "proms", 0 )
+ ROM_LOAD( "cc_bprom3.j8", 0x0000, 0x0400, CRC(21f72498) SHA1(a586c869cb4633fec0df92b5646ece78f99b6f2a) )
+ ROM_LOAD( "cc_bprom2.j9", 0x0400, 0x0400, CRC(19efe7df) SHA1(7e49af8b8b01fb929b87d6285da32fbe4c58606d) )
+ ROM_LOAD( "cc_bprom1.j10", 0x0800, 0x0400, CRC(fbbbf911) SHA1(86394a7f67bc4f89f72b9607ca3733ab3d690289) )
+ROM_END
+
+
+GAME( 1984, mainsnk, 0, mainsnk, mainsnk, 0, ROT0, "SNK", "Main Event (1984)", 0)
+GAME( 1985, canvas, 0, mainsnk, canvas, 0, ROT0, "SNK", "Canvas Croquis", 0)