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Diffstat (limited to 'trunk/src/mame/drivers/galaxia.c')
-rw-r--r--trunk/src/mame/drivers/galaxia.c413
1 files changed, 413 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/galaxia.c b/trunk/src/mame/drivers/galaxia.c
new file mode 100644
index 00000000000..7dd51b908a4
--- /dev/null
+++ b/trunk/src/mame/drivers/galaxia.c
@@ -0,0 +1,413 @@
+/* Galaxia
+
+Galaxia by Zaccaria (1979)
+
+Taken from an untested board.
+
+1K byte files were 2708 or equivalent.
+512 byte file is a 82S130 PROM.
+
+This is not a direct pirate of Galaxian as you might think from the name.
+The game uses a Signetics 2650A CPU with three 40-pin 2636 chips, which are
+responsible for sound and some video functions.
+
+Other than that, the video hardware looks like it's similar to Galaxian
+(2 x 2114, 2 x 2101, 2 x EPROM) but there is no attack RAM and the graphics
+EPROMS are 2708. The graphics EPROMS do contain Galaxian-like graphics...
+
+Quick PCB sketch:
+ ------------------------------------------------------------------------------
+ | |
+ | 13l 13i 13h |
+ | |
+ | PROM 11l 11i 11h S2636 S2621 XTAL |
+|6-| ?MHz |
+ | 10i 10h S2636 |
+|5-| |
+|--| 8i 8h S2636 S2650A |
+|--| |
+|--| |
+ | |
+|4-| |
+|--| |
+|--| |
+|--| |
+ | |
+|3-| |
+|--| |
+|--| |
+|--| DSW |
+ | 3d |
+|2-| DSW |-1|
+ | 1d |--|
+ | |--|
+ ------------------------------------------------------------------------------
+
+XTAL label is not readable on any PCB?
+
+Astro Wars (port of Astro Fighter) is on a stripped down board of Galaxia,
+using only one 2636 chip, less RAM, and no PROM.
+
+---
+
+HW has many similarities with quasar.c / cvs.c / zac2650.c
+
+TODO:
+- fix colors, there's no color prom?!
+- improve bullets
+- accurate astrowar sprite/bg sync
+- XTAL
+
+*/
+
+#include "emu.h"
+#include "video/s2636.h"
+#include "sound/s2636.h"
+#include "cpu/s2650/s2650.h"
+#include "includes/galaxia.h"
+
+
+static INTERRUPT_GEN( galaxia_interrupt )
+{
+ device_set_input_line_and_vector(device, 0, HOLD_LINE, 0x03);
+ cvs_scroll_stars(device->machine());
+}
+
+
+/***************************************************************************
+
+ I/O
+
+***************************************************************************/
+
+WRITE8_MEMBER(galaxia_state::galaxia_video_w)
+{
+// machine().primary_screen->update_partial(machine().primary_screen->vpos());
+ m_bg_tilemap->mark_tile_dirty(offset);
+ cvs_video_or_color_ram_w(space, offset, data);
+}
+
+WRITE8_MEMBER(galaxia_state::galaxia_scroll_w)
+{
+ machine().primary_screen->update_partial(machine().primary_screen->vpos());
+
+ // fixed scrolling area
+ for (int i = 1; i < 6; i++)
+ m_bg_tilemap->set_scrolly(i, data);
+}
+
+WRITE8_MEMBER(galaxia_state::galaxia_ctrlport_w)
+{
+ // d0/d1: maybe coincounter
+ // other bits: unknown
+}
+
+WRITE8_MEMBER(galaxia_state::galaxia_dataport_w)
+{
+ // cvs-style video fx? or lamps?
+}
+
+READ8_MEMBER(galaxia_state::galaxia_collision_r)
+{
+ machine().primary_screen->update_partial(machine().primary_screen->vpos());
+ return m_collision_register;
+}
+
+READ8_MEMBER(galaxia_state::galaxia_collision_clear)
+{
+ machine().primary_screen->update_partial(machine().primary_screen->vpos());
+ m_collision_register = 0;
+ return 0xff;
+}
+
+static ADDRESS_MAP_START( galaxia_mem_map, AS_PROGRAM, 8, galaxia_state )
+ AM_RANGE(0x0000, 0x13ff) AM_ROM
+ AM_RANGE(0x1400, 0x14ff) AM_MIRROR(0x6000) AM_RAM AM_SHARE("bullet_ram")
+ AM_RANGE(0x1500, 0x15ff) AM_MIRROR(0x6000) AM_DEVREADWRITE_LEGACY("s2636_0", s2636_work_ram_r, s2636_work_ram_w)
+ AM_RANGE(0x1600, 0x16ff) AM_MIRROR(0x6000) AM_DEVREADWRITE_LEGACY("s2636_1", s2636_work_ram_r, s2636_work_ram_w)
+ AM_RANGE(0x1700, 0x17ff) AM_MIRROR(0x6000) AM_DEVREADWRITE_LEGACY("s2636_2", s2636_work_ram_r, s2636_work_ram_w)
+ AM_RANGE(0x1800, 0x1bff) AM_MIRROR(0x6000) AM_READ(cvs_video_or_color_ram_r) AM_WRITE(galaxia_video_w) AM_SHARE("video_ram")
+ AM_RANGE(0x1c00, 0x1fff) AM_MIRROR(0x6000) AM_RAM
+ AM_RANGE(0x2000, 0x33ff) AM_ROM
+ AM_RANGE(0x7214, 0x7214) AM_READ_PORT("IN0")
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( astrowar_mem_map, AS_PROGRAM, 8, galaxia_state )
+ AM_RANGE(0x0000, 0x13ff) AM_ROM
+ AM_RANGE(0x1400, 0x14ff) AM_MIRROR(0x6000) AM_RAM
+ AM_RANGE(0x1500, 0x15ff) AM_MIRROR(0x6000) AM_DEVREADWRITE_LEGACY("s2636_0", s2636_work_ram_r, s2636_work_ram_w)
+ AM_RANGE(0x1800, 0x1bff) AM_MIRROR(0x6000) AM_READ(cvs_video_or_color_ram_r) AM_WRITE(galaxia_video_w) AM_SHARE("video_ram")
+ AM_RANGE(0x1c00, 0x1cff) AM_MIRROR(0x6000) AM_RAM AM_SHARE("bullet_ram")
+ AM_RANGE(0x2000, 0x33ff) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( galaxia_io_map, AS_IO, 8, galaxia_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00, 0x00) AM_WRITE(galaxia_scroll_w) AM_READ_PORT("IN0")
+ AM_RANGE(0x02, 0x02) AM_READ_PORT("IN1")
+ AM_RANGE(0x05, 0x05) AM_READNOP
+ AM_RANGE(0x06, 0x06) AM_READ_PORT("DSW0")
+ AM_RANGE(0x07, 0x07) AM_READ_PORT("DSW1")
+ AM_RANGE(0xac, 0xac) AM_READNOP
+ AM_RANGE(S2650_CTRL_PORT, S2650_CTRL_PORT) AM_READWRITE(galaxia_collision_r, galaxia_ctrlport_w)
+ AM_RANGE(S2650_DATA_PORT, S2650_DATA_PORT) AM_READWRITE(galaxia_collision_clear, galaxia_dataport_w)
+ AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ_PORT("SENSE")
+ AM_RANGE(S2650_FO_PORT, S2650_FO_PORT) AM_RAM AM_SHARE("fo_state")
+ADDRESS_MAP_END
+
+
+/***************************************************************************
+
+ Inputs
+
+***************************************************************************/
+
+static INPUT_PORTS_START( galaxia )
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_IMPULSE(1)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_IMPULSE(1)
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+ PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY
+ PORT_BIT( 0xc3, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START("DSW0")
+ PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x00, "A 1C_1C B 2C_1C" )
+ PORT_DIPSETTING( 0x01, "A 1C_2C B 2C_1C" )
+ PORT_DIPSETTING( 0x02, "A 1C_3C B 2C_1C" )
+ PORT_DIPSETTING( 0x03, "A 1C_5C B 2C_1C" )
+ PORT_DIPSETTING( 0x04, "A 1C_1C B 1C_1C" )
+ PORT_DIPSETTING( 0x05, "A 1C_2C B 1C_1C" )
+ PORT_DIPSETTING( 0x06, "A 1C_3C B 1C_1C" )
+ PORT_DIPSETTING( 0x07, "A 1C_5C B 1C_1C" )
+ PORT_DIPNAME( 0x08, 0x00, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "3" )
+ PORT_DIPSETTING( 0x08, "5" )
+
+ PORT_DIPNAME( 0x10, 0x00, "UNK04" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x00, "UNK05" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x00, "UNK06" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, "UNK07" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x01, 0x00, "UNK10" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x00, "UNK11" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x00, "UNK12" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x00, "UNK13" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( On ) )
+
+ PORT_DIPNAME( 0x10, 0x00, "UNK14" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x00, "UNK15" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x00, "UNK16" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, "UNK17" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+
+ PORT_START("SENSE")
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen")
+INPUT_PORTS_END
+
+
+/***************************************************************************
+
+ Machine Configs
+
+***************************************************************************/
+
+static const gfx_layout tiles8x8x1_layout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 1,
+ { RGN_FRAC(0,1) },
+ { 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 tiles8x8x2_layout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { 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 GFXDECODE_START( galaxia )
+ GFXDECODE_ENTRY( "gfx1", 0, tiles8x8x2_layout, 0, 4 )
+GFXDECODE_END
+
+static GFXDECODE_START( astrowar )
+ GFXDECODE_ENTRY( "gfx1", 0, tiles8x8x1_layout, 0, 8 )
+GFXDECODE_END
+
+
+static const s2636_interface galaxia_s2636_config[3] =
+{
+ { "screen", 0x100, 3, -26, "s2636snd_0" },
+ { "screen", 0x100, 3, -26, "s2636snd_1" },
+ { "screen", 0x100, 3, -26, "s2636snd_2" }
+};
+
+static const s2636_interface astrowar_s2636_config =
+{
+ "screen",
+ 0x100,
+ 3, 0,
+ "s2636snd_0"
+};
+
+
+static MACHINE_CONFIG_START( galaxia, galaxia_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", S2650, 2000000) /* ? MHz */
+ MCFG_CPU_PROGRAM_MAP(galaxia_mem_map)
+ MCFG_CPU_IO_MAP(galaxia_io_map)
+ MCFG_CPU_VBLANK_INT("screen", galaxia_interrupt)
+
+ /* video hardware */
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_ALWAYS_UPDATE)
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
+ MCFG_SCREEN_SIZE(256, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 30*8-1, 2*8, 32*8-1)
+ MCFG_SCREEN_UPDATE_STATIC(galaxia)
+
+ MCFG_GFXDECODE(galaxia)
+ MCFG_PALETTE_LENGTH(0x18+2)
+
+ MCFG_PALETTE_INIT(galaxia)
+ MCFG_VIDEO_START(galaxia)
+
+ MCFG_S2636_ADD("s2636_0", galaxia_s2636_config[0])
+ MCFG_S2636_ADD("s2636_1", galaxia_s2636_config[1])
+ MCFG_S2636_ADD("s2636_2", galaxia_s2636_config[2])
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("s2636snd_0", S2636_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ MCFG_SOUND_ADD("s2636snd_1", S2636_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+
+ MCFG_SOUND_ADD("s2636snd_2", S2636_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+MACHINE_CONFIG_END
+
+
+static MACHINE_CONFIG_START( astrowar, galaxia_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", S2650, 2000000) /* ? MHz */
+ MCFG_CPU_PROGRAM_MAP(astrowar_mem_map)
+ MCFG_CPU_IO_MAP(galaxia_io_map)
+ MCFG_CPU_VBLANK_INT("screen", galaxia_interrupt)
+
+ /* video hardware */
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_ALWAYS_UPDATE)
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
+ MCFG_SCREEN_SIZE(256, 256)
+ MCFG_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 2*8, 32*8-1)
+ MCFG_SCREEN_UPDATE_STATIC(astrowar)
+
+ MCFG_GFXDECODE(astrowar)
+ MCFG_PALETTE_LENGTH(0x18+2)
+
+ MCFG_PALETTE_INIT(astrowar)
+ MCFG_VIDEO_START(astrowar)
+
+ MCFG_S2636_ADD("s2636_0", astrowar_s2636_config)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("s2636snd_0", S2636_SOUND, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+MACHINE_CONFIG_END
+
+
+/***************************************************************************
+
+ Game drivers
+
+***************************************************************************/
+
+ROM_START( galaxia )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "galaxia.8h", 0x00000, 0x0400, CRC(f3b4ffde) SHA1(15b004e7821bfc145158b1e9435f061c524f6b86) )
+ ROM_LOAD( "galaxia.10h", 0x00400, 0x0400, CRC(6d07fdd4) SHA1(d7d4b345a055275d59951788569db370bccd5195) )
+ ROM_LOAD( "galaxia.11h", 0x00800, 0x0400, CRC(1520eb3d) SHA1(3683174da701e1124af0f9c2ee4a9a84f3fea33a) )
+ ROM_LOAD( "galaxia.13h", 0x00c00, 0x0400, CRC(c4482770) SHA1(aee983cc3d80989f49aea4138961bb623039484a) )
+ ROM_LOAD( "galaxia.8i", 0x01000, 0x0400, CRC(45b88599) SHA1(3b79c21db1aa9d80fac81ac5a554e438805febd1) )
+ ROM_LOAD( "galaxia.10i", 0x02000, 0x0400, CRC(c0baa654) SHA1(80e0880c32ad285fbce0f7f552268b964b97cab3) )
+ ROM_LOAD( "galaxia.11i", 0x02400, 0x0400, CRC(4456808a) SHA1(f9e8cfdde0e17f13f1be297b2b4503ccc959b33c) )
+ ROM_LOAD( "galaxia.13i", 0x02800, 0x0400, CRC(cf653b9a) SHA1(fef5943de60cb5ba2459fc6ae7419e29c96a76cd) )
+ ROM_LOAD( "galaxia.11l", 0x02c00, 0x0400, CRC(50c6a645) SHA1(46638907bc393df6be25fc7461d73047d1746ffc) )
+ ROM_LOAD( "galaxia.13l", 0x03000, 0x0400, CRC(3a9c38c7) SHA1(d1e934092b69c0f3f9636eba05a1d8a6d9588e6b) )
+
+ ROM_REGION( 0x0800, "gfx1", 0 )
+ ROM_LOAD( "galaxia.1d", 0x00000, 0x0400, CRC(2dd50aab) SHA1(758d7a5383c9a1ee134d99e3f7025819cfbe0e0f) )
+ ROM_LOAD( "galaxia.3d", 0x00400, 0x0400, CRC(1dc30185) SHA1(e3c75eecb80b376ece98f602e1b9587487841824) )
+
+ ROM_REGION( 0x0200, "proms", 0 ) // unknown function
+ ROM_LOAD( "prom.11o", 0x0000, 0x0200, CRC(ae816417) SHA1(9497857d13c943a2735c3b85798199054e613b2c) )
+ROM_END
+
+ROM_START( astrowar )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "astro.8h", 0x00000, 0x0400, CRC(b0ec246c) SHA1(f9123b5e317938655f5e8b3f8a5810d0b2b7c7af) )
+ ROM_LOAD( "astro.10h", 0x00400, 0x0400, CRC(090d360f) SHA1(528ddcdc30a5a291bd8850ff6f134fcc19af562f) )
+ ROM_LOAD( "astro.11h", 0x00800, 0x0400, CRC(72ab1378) SHA1(50743c64c4775076aa6f1d8ab2e05c14884bf0ba) )
+ ROM_LOAD( "astro.13h", 0x00c00, 0x0400, CRC(2dc4c895) SHA1(831afbfd4ebfd6522ab0758222bc6f9826148a5d) )
+ ROM_LOAD( "astro.8i", 0x01000, 0x0400, CRC(ab87fbfc) SHA1(34b670f96c260f186c643e588995ae5d80377784) )
+ ROM_LOAD( "astro.10i", 0x02000, 0x0400, CRC(533675c1) SHA1(69cc066e1874a135a53a21b7b2461bda456504f1) )
+ ROM_LOAD( "astro.11i", 0x02400, 0x0400, CRC(59cf8901) SHA1(e849d4c99350b7e3453c156d91618b71b5be1163) )
+ ROM_LOAD( "astro.13i", 0x02800, 0x0400, CRC(5149c121) SHA1(232ba594e283fb25c31d8ae0b7d8315a81852a71) )
+ ROM_LOAD( "astro.11l", 0x02c00, 0x0400, CRC(29f52f57) SHA1(5cb50b82e09c537eeaeae167351fca686fde8228) )
+ ROM_LOAD( "astro.13l", 0x03000, 0x0400, CRC(882cdb87) SHA1(062ee8d296316cbce2eb62e72774aa4181e9847d) )
+
+ ROM_REGION( 0x0800, "gfx1", 0 )
+ ROM_LOAD( "astro.1d", 0x00000, 0x0400, CRC(6053f834) SHA1(e0b76800c241b3c8010c09869cecbc109b25310a) )
+ ROM_LOAD( "astro.3d", 0x00400, 0x0400, CRC(822505aa) SHA1(f9d3465e14bb850a286f8b4f42aa0a4044413b67) )
+ROM_END
+
+
+GAME( 1979, galaxia, 0, galaxia, galaxia, 0, ROT90, "Zaccaria / Zelco", "Galaxia", GAME_IMPERFECT_COLORS | GAME_IMPERFECT_GRAPHICS )
+GAME( 1980, astrowar, 0, astrowar, galaxia, 0, ROT90, "Zaccaria / Zelco", "Astro Wars", GAME_IMPERFECT_COLORS | GAME_IMPERFECT_GRAPHICS )
s="p">) { int tile = m_textram[tile_index]; int color=(tile>>12)&0xf; tile&=0xfff; SET_TILE_INFO_MEMBER( 0, tile, color, 0); } void dcon_state::video_start() { m_background_layer = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(dcon_state::get_back_tile_info),this),TILEMAP_SCAN_ROWS, 16,16,32,32); m_foreground_layer = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(dcon_state::get_fore_tile_info),this),TILEMAP_SCAN_ROWS,16,16,32,32); m_midground_layer = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(dcon_state::get_mid_tile_info),this), TILEMAP_SCAN_ROWS,16,16,32,32); m_text_layer = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(dcon_state::get_text_tile_info),this),TILEMAP_SCAN_ROWS, 8,8,64,32); m_midground_layer->set_transparent_pen(15); m_foreground_layer->set_transparent_pen(15); m_text_layer->set_transparent_pen(15); m_gfx_bank_select = 0; } static void draw_sprites(running_machine& machine, bitmap_ind16 &bitmap,const rectangle &cliprect) { dcon_state *state = machine.driver_data<dcon_state>(); UINT16 *spriteram16 = state->m_spriteram; int offs,fx,fy,x,y,color,sprite; int dx,dy,ax,ay,inc,pri_mask = 0; for (offs = 0;offs < 0x400;offs += 4) { if ((spriteram16[offs+0]&0x8000)!=0x8000) continue; sprite = spriteram16[offs+1]; switch((sprite>>14) & 3) { case 0: pri_mask = 0xf0; // above foreground layer break; case 1: pri_mask = 0xfc; // above midground layer break; case 2: pri_mask = 0xfe; // above background layer break; case 3: pri_mask = 0; // above text layer break; } sprite &= 0x3fff; y = spriteram16[offs+3]; x = spriteram16[offs+2]; if (x&0x8000) x=0-(0x200-(x&0x1ff)); else x&=0x1ff; if (y&0x8000) y=0-(0x200-(y&0x1ff)); else y&=0x1ff; color = spriteram16[offs+0]&0x3f; fx = spriteram16[offs+0]&0x4000; fy = spriteram16[offs+0]&0x2000; dy=((spriteram16[offs+0]&0x0380)>>7)+1; dx=((spriteram16[offs+0]&0x1c00)>>10)+1; inc = 0; for (ax=0; ax<dx; ax++) for (ay=0; ay<dy; ay++) { if (!fx && !fy) { pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+ay*16, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+ay*16 + 512, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+ay*16 - 512, machine.priority_bitmap,pri_mask,15); } else if (fx && !fy) { pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+ay*16, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+ay*16 + 512, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+ay*16 - 512, machine.priority_bitmap,pri_mask,15); } else if (!fx && fy) { pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+(dy-1-ay)*16, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+(dy-1-ay)*16 + 512, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+ax*16,y+(dy-1-ay)*16 - 512, machine.priority_bitmap,pri_mask,15); } else { pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+(dy-1-ay)*16, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+(dy-1-ay)*16 + 512, machine.priority_bitmap,pri_mask,15); // wrap around y pdrawgfx_transpen(bitmap,cliprect,machine.gfx[4], sprite + inc, color,fx,fy,x+(dx-1-ax)*16,y+(dy-1-ay)*16 - 512, machine.priority_bitmap,pri_mask,15); } inc++; } } } UINT32 dcon_state::screen_update_dcon(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { machine().priority_bitmap.fill(0, cliprect); /* Setup the tilemaps */ m_background_layer->set_scrollx(0, m_scroll_ram[0] ); m_background_layer->set_scrolly(0, m_scroll_ram[1] ); m_midground_layer->set_scrollx(0, m_scroll_ram[2] ); m_midground_layer->set_scrolly(0, m_scroll_ram[3] ); m_foreground_layer->set_scrollx(0, m_scroll_ram[4] ); m_foreground_layer->set_scrolly(0, m_scroll_ram[5] ); if ((m_enable&1)!=1) m_background_layer->draw(bitmap, cliprect, 0,0); else bitmap.fill(15, cliprect); /* Should always be black, not pen 15 */ m_midground_layer->draw(bitmap, cliprect, 0,1); m_foreground_layer->draw(bitmap, cliprect, 0,2); m_text_layer->draw(bitmap, cliprect, 0,4); draw_sprites(machine(),bitmap,cliprect); return 0; } UINT32 dcon_state::screen_update_sdgndmps(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { machine().priority_bitmap.fill(0, cliprect); /* Gfx banking */ if (m_last_gfx_bank!=m_gfx_bank_select) { m_midground_layer->mark_all_dirty(); m_last_gfx_bank=m_gfx_bank_select; } /* Setup the tilemaps */ m_background_layer->set_scrollx(0, m_scroll_ram[0]+128 ); m_background_layer->set_scrolly(0, m_scroll_ram[1] ); m_midground_layer->set_scrollx(0, m_scroll_ram[2]+128 ); m_midground_layer->set_scrolly(0, m_scroll_ram[3] ); m_foreground_layer->set_scrollx(0, m_scroll_ram[4]+128 ); m_foreground_layer->set_scrolly(0, m_scroll_ram[5] ); m_text_layer->set_scrollx(0, /*m_scroll_ram[6] + */ 128 ); m_text_layer->set_scrolly(0, /*m_scroll_ram[7] + */ 0 ); if ((m_enable&1)!=1) m_background_layer->draw(bitmap, cliprect, 0,0); else bitmap.fill(15, cliprect); /* Should always be black, not pen 15 */ m_midground_layer->draw(bitmap, cliprect, 0,1); m_foreground_layer->draw(bitmap, cliprect, 0,2); m_text_layer->draw(bitmap, cliprect, 0,4); draw_sprites(machine(),bitmap,cliprect); return 0; }