/***************************************************************************
Space Force Memory Map
driver by Zsolt Vasvari
0000-3fff R ROM
4000-43ff R/W RAM
7000-7002 R input ports 0-2
7000 W sound command
7001 W sound CPU IRQ trigger on bit 3 falling edge
7002 W unknown
7008 W unknown
7009 W unknown
700a W unknown
700b W flip screen
700c W unknown
700d W unknown
700e W main CPU interrupt enable (it uses RST7.5)
700f W unknown
8000-83ff R/W bit 0-7 of character code
9000-93ff R/W attributes RAM
bit 0 - bit 8 of character code
bit 1-3 - unused
bit 4-6 - color
bit 7 - unused
a000-a3ff R/W X/Y scroll position of each character (can be scrolled up
to 7 pixels in each direction)
***************************************************************************/
#include "emu.h"
#include "cpu/i8085/i8085.h"
#include "cpu/mcs48/mcs48.h"
#include "sound/sn76496.h"
#include "includes/spcforce.h"
static WRITE8_HANDLER( spcforce_SN76496_latch_w )
{
spcforce_state *state = space->machine().driver_data<spcforce_state>();
state->m_sn76496_latch = data;
}
static READ8_HANDLER( spcforce_SN76496_select_r )
{
spcforce_state *state = space->machine().driver_data<spcforce_state>();
if (~state->m_sn76496_select & 0x40) return sn76496_ready_r(space->machine().device("sn1"));
if (~state->m_sn76496_select & 0x20) return sn76496_ready_r(space->machine().device("sn2"));
if (~state->m_sn76496_select & 0x10) return sn76496_ready_r(space->machine().device("sn3"));
return 0;
}
static WRITE8_HANDLER( spcforce_SN76496_select_w )
{
spcforce_state *state = space->machine().driver_data<spcforce_state>();
state->m_sn76496_select = data;
if (~data & 0x40) sn76496_w(space->machine().device("sn1"), 0, state->m_sn76496_latch);
if (~data & 0x20) sn76496_w(space->machine().device("sn2"), 0, state->m_sn76496_latch);
if (~data & 0x10) sn76496_w(space->machine().device("sn3"), 0, state->m_sn76496_latch);
}
static READ8_HANDLER( spcforce_t0_r )
{
/* SN76496 status according to Al - not supported by MAME?? */
return space->machine().rand() & 1;
}
static WRITE8_HANDLER( spcforce_soundtrigger_w )
{
cputag_set_input_line(space->machine(), "audiocpu", 0, (~data & 0x08) ? ASSERT_LINE : CLEAR_LINE);
}
static ADDRESS_MAP_START( spcforce_map, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0x3fff) AM_ROM
AM_RANGE(0x4000, 0x43ff) AM_RAM
AM_RANGE(0x7000, 0x7000) AM_READ_PORT("DSW") AM_WRITE(soundlatch_w)
AM_RANGE(0x7001, 0x7001) AM_READ_PORT("P1") AM_WRITE(spcforce_soundtrigger_w)
AM_RANGE(0x7002, 0x7002) AM_READ_PORT("P2")
AM_RANGE(0x700b, 0x700b) AM_WRITE(spcforce_flip_screen_w)
AM_RANGE(0x700e, 0x700e) AM_WRITE(interrupt_enable_w)
AM_RANGE(0x700f, 0x700f) AM_WRITENOP
AM_RANGE(0x8000, 0x83ff) AM_RAM AM_BASE_MEMBER(spcforce_state, m_videoram)
AM_RANGE(0x9000, 0x93ff) AM_RAM AM_BASE_MEMBER(spcforce_state, m_colorram)
AM_RANGE(0xa000, 0xa3ff) AM_RAM AM_BASE_MEMBER(spcforce_state, m_scrollram)
ADDRESS_MAP_END
static ADDRESS_MAP_START( spcforce_sound_map, AS_PROGRAM, 8 )
AM_RANGE(0x0000, 0x07ff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( spcforce_sound_io_map, AS_IO, 8 )
AM_RANGE(MCS48_PORT_BUS, MCS48_PORT_BUS) AM_READ(soundlatch_r)
AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_WRITE(spcforce_SN76496_latch_w)
AM_RANGE(MCS48_PORT_P2, MCS48_PORT_P2) AM_READWRITE(spcforce_SN76496_select_r, spcforce_SN76496_select_w)
AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_READ(spcforce_t0_r)
ADDRESS_MAP_END
static INPUT_PORTS_START( spcforce )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x02, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x03, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_6C ) )
PORT_DIPNAME( 0x18, 0x08, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "2" )
PORT_DIPSETTING( 0x08, "3" )
PORT_DIPSETTING( 0x10, "4" )
PORT_DIPSETTING( 0x18, "5" )
PORT_DIPNAME( 0x20, 0x20, DEF_STR( Bonus_Life ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x20, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) /* probably unused */
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x80, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
PORT_START("P1")
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
PORT_START("P2")
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_COCKTAIL
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_SERVICE_NO_TOGGLE( 0x08, IP_ACTIVE_LOW )
PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_COCKTAIL
INPUT_PORTS_END
/* same as spcforce, but no cocktail mode */
static INPUT_PORTS_START( spcforc2 )
PORT_START("DSW")
PORT_DIPNAME( 0x03, 0x02, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x03, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_6C ) )
PORT_DIPNAME( 0x18, 0x08, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "2" )
PORT_DIPSETTING( 0x08, "3" )
PORT_DIPSETTING( 0x10, "4" )
PORT_DIPSETTING( 0x18, "5" )
PORT_DIPNAME( 0x20, 0x20, DEF_STR( Bonus_Life ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x20, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) /* probably unused */
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) /* probably unused */
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START("P1")
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
PORT_START("P2")
PORT_SERVICE_NO_TOGGLE( 0x08, IP_ACTIVE_LOW )
PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8, /* 8*8 chars */
512, /* 512 characters */
3, /* 3 bits per pixel */
{ 2*512*8*8, 512*8*8, 0 }, /* The bitplanes are separate */
{ 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 /* every char takes 8 consecutive bytes */
};
static GFXDECODE_START( spcforce )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 8 )
GFXDECODE_END
/* 1-bit RGB palette */
static const int colortable_source[] =
{
0, 1, 2, 3, 4, 5, 6, 7,
0, 0, 1, 2, 3, 4, 5, 6, /* not sure about these, but they are only used */
0, 7, 0, 1, 2, 3, 4, 5, /* to change the text color. During the game, */
0, 6, 7, 0, 1, 2, 3, 4, /* only color 0 is used, which is correct. */
0, 5, 6, 7, 0, 1, 2, 3,
0, 4, 5, 6, 7, 0, 1, 2,
0, 3, 4, 5, 6, 7, 0, 1,
0, 2, 3, 4, 5, 6, 7, 0
};
static PALETTE_INIT( spcforce )
{
int i;
for (i = 0; i < sizeof(colortable_source) / sizeof(colortable_source[0]); i++)
{
int data = colortable_source[i];
rgb_t color = MAKE_RGB(pal1bit(data >> 0), pal1bit(data >> 1), pal1bit(data >> 2));
palette_set_color(machine, i, color);
}
}
static MACHINE_CONFIG_START( spcforce, spcforce_state )
/* basic machine hardware */
/* FIXME: The 8085A had a max clock of 6MHz, internally divided by 2! */
MCFG_CPU_ADD("maincpu", I8085A, 8000000 * 2) /* 4.00 MHz??? */
MCFG_CPU_PROGRAM_MAP(spcforce_map)
MCFG_CPU_VBLANK_INT("screen", irq3_line_pulse)
MCFG_CPU_ADD("audiocpu", I8035, 6144000) /* divisor ??? */
MCFG_CPU_PROGRAM_MAP(spcforce_sound_map)
MCFG_CPU_IO_MAP(spcforce_sound_io_map)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_SIZE(32*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 28*8-1)
MCFG_SCREEN_UPDATE(spcforce)
MCFG_GFXDECODE(spcforce)
MCFG_PALETTE_LENGTH(sizeof(colortable_source) / sizeof(colortable_source[0]))
MCFG_PALETTE_INIT(spcforce)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("sn1", SN76496, 2000000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MCFG_SOUND_ADD("sn2", SN76496, 2000000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MCFG_SOUND_ADD("sn3", SN76496, 2000000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( spcforce )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "m1v4f.1a", 0x0000, 0x0800, CRC(7da0d1ed) SHA1(2ee145f590da557be057f181b4861014627872e7) )
ROM_LOAD( "m2v4f.1c", 0x0800, 0x0800, CRC(25605bff) SHA1(afda2884a00fdbc000191dd548fd8e34df3e2f49) )
ROM_LOAD( "m3v5f.2a", 0x1000, 0x0800, CRC(6f879366) SHA1(ef624619dbaad1f2adf4fab82e04bac117dbfac6) )
ROM_LOAD( "m4v5f.2c", 0x1800, 0x0800, CRC(7fbfabfa) SHA1(0d6bbdcc80e251aa0ebd12e66549afaf6d8ccb0e) )
/*0x2000 empty */
ROM_LOAD( "m6v4f.3c", 0x2800, 0x0800, CRC(12128e9e) SHA1(b2a113b419e11ca094f56ae93870df11690b119a) )
ROM_LOAD( "m7v4f.4a", 0x3000, 0x0800, CRC(978ad452) SHA1(fa84dcc6587403dd939da719a747d8c7332ed038) )
ROM_LOAD( "m8v4f.4c", 0x3800, 0x0800, CRC(f805c3cd) SHA1(78eb13b99aae895742b34ed56bee9313d3643de1) )
ROM_REGION( 0x1000, "audiocpu", 0 ) /* sound MCU */
ROM_LOAD( "vm5.k10", 0x0000, 0x0800, CRC(8820913c) SHA1(90002cafdf5f32f916e5457e013ebe53405d5ca8) )
ROM_REGION( 0x3000, "gfx1", 0 )
ROM_LOAD( "rm1v2.6s", 0x0000, 0x0800, CRC(8e3490d7) SHA1(a5e47f953bb833c2bb769b266fff60f7a20c69a6) )
ROM_LOAD( "rm2v1.7s", 0x0800, 0x0800, CRC(fbbfa05a) SHA1(c737b216f47e14c069cb84b5dbcc5a79fcc13648) )
ROM_LOAD( "gm1v2.6p", 0x1000, 0x0800, CRC(4f574920) SHA1(05930a8ea5c6e05d01d1b4faabb3305aab44125c) )
ROM_LOAD( "gm2v1.7p", 0x1800, 0x0800, CRC(0cd89ce2) SHA1(adb101400eb00119930494e99629948248d99d2f) )
ROM_LOAD( "bm1v2.6m", 0x2000, 0x0800, CRC(130869ce) SHA1(588d6c9403d5fd966266b4f0333ee47b36c8b1d8) )
ROM_LOAD( "bm2v1.7m", 0x2800, 0x0800, CRC(472f0a9b) SHA1(a8a9e2aa62374cd3bd938b5cb5fb20face3114c3) )
ROM_END
ROM_START( spcforc2 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "spacefor.1a", 0x0000, 0x0800, CRC(ef6fdccb) SHA1(2fff28437597958b39a821f93ac30f32c24f50aa) )
ROM_LOAD( "spacefor.1c", 0x0800, 0x0800, CRC(44bd1cdd) SHA1(6dd5ae7a64079c61b63667f06e0d34dec48eac7c) )
ROM_LOAD( "spacefor.2a", 0x1000, 0x0800, CRC(fcbc7df7) SHA1(b6e89dbfc80d5d9dcf889f618a8278c182773a14) )
ROM_LOAD( "vm4", 0x1800, 0x0800, CRC(c5b073b9) SHA1(93b77c77488aa954c35880439be6c7629448a3ea) )
/*0x2000 empty */
ROM_LOAD( "spacefor.3c", 0x2800, 0x0800, CRC(9fd52301) SHA1(1ea5d5b888dd2f7ac6aab227c78b86c2f2f320da) )
ROM_LOAD( "spacefor.4a", 0x3000, 0x0800, CRC(89aefc0a) SHA1(0b56efa613bce972af4bbf145853bfc0cda60ef9) )
ROM_LOAD( "m8v4f.4c", 0x3800, 0x0800, CRC(f805c3cd) SHA1(78eb13b99aae895742b34ed56bee9313d3643de1) )
ROM_REGION( 0x1000, "audiocpu", 0 ) /* sound MCU */
ROM_LOAD( "vm5.k10", 0x0000, 0x0800, CRC(8820913c) SHA1(90002cafdf5f32f916e5457e013ebe53405d5ca8) )
ROM_REGION( 0x3000, "gfx1", 0 )
ROM_LOAD( "spacefor.6s", 0x0000, 0x0800, CRC(848ae522) SHA1(deb28ba09556d04d9f6c906a163372f842b00c63) )
ROM_LOAD( "rm2v1.7s", 0x0800, 0x0800, CRC(fbbfa05a) SHA1(c737b216f47e14c069cb84b5dbcc5a79fcc13648) )
ROM_LOAD( "spacefor.6p", 0x1000, 0x0800, CRC(95446911) SHA1(843025d1c557156f73c2e9a1278c02738b69fb5d) )
ROM_LOAD( "gm2v1.7p", 0x1800, 0x0800, CRC(0cd89ce2) SHA1(adb101400eb00119930494e99629948248d99d2f) )
ROM_LOAD( "bm1v2.6m", 0x2000, 0x0800, CRC(130869ce) SHA1(588d6c9403d5fd966266b4f0333ee47b36c8b1d8) )
ROM_LOAD( "bm2v1.7m", 0x2800, 0x0800, CRC(472f0a9b) SHA1(a8a9e2aa62374cd3bd938b5cb5fb20face3114c3) )
ROM_END
ROM_START( meteor )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "vm1", 0x0000, 0x0800, CRC(894fe9b1) SHA1(617e05523392e2ba2608ca13aa24d6601289fe87) )
ROM_LOAD( "vm2", 0x0800, 0x0800, CRC(28685a68) SHA1(f911a3ccb8d63cf82a6dc8f069f3f498e9081656) )
ROM_LOAD( "vm3", 0x1000, 0x0800, CRC(c88fb12a) SHA1(1eeb26caf7a1421ec2d570f71b8c4675ad7ea172) )
ROM_LOAD( "vm4", 0x1800, 0x0800, CRC(c5b073b9) SHA1(93b77c77488aa954c35880439be6c7629448a3ea) )
/*0x2000 empty */
ROM_LOAD( "vm6", 0x2800, 0x0800, CRC(9969ec43) SHA1(3ce067c34b84e9559f195e7ef9939a78070693b1) )
ROM_LOAD( "vm7", 0x3000, 0x0800, CRC(39f43ac2) SHA1(b45275759f4003a22a32dc04227a98908bd140a9) )
ROM_LOAD( "vm8", 0x3800, 0x0800, CRC(a0508de3) SHA1(75666a4e46b6c433f1c1f8e76c30fd087354097b) )
ROM_REGION( 0x1000, "audiocpu", 0 ) /* sound MCU */
ROM_LOAD( "vm5", 0x0000, 0x0800, CRC(b14ccd57) SHA1(0349ec5d0ca7f98ffdd96d7bf01cf096fe547f7a) )
ROM_REGION( 0x3000, "gfx1", 0 )
ROM_LOAD( "rm1v", 0x0000, 0x0800, CRC(d621fe96) SHA1(29b75333ea8103095a4d452636eea4a1055845e5) )
ROM_LOAD( "rm2v", 0x0800, 0x0800, CRC(b3981251) SHA1(b6743d121a6b3ad8e8beebe1faff2678b89e7d16) )
ROM_LOAD( "gm1v", 0x1000, 0x0800, CRC(d44617e8) SHA1(1cec7984cc5e3472c25c23f02179380c4a5b4076) )
ROM_LOAD( "gm2v", 0x1800, 0x0800, CRC(0997d945) SHA1(16eba77b14c62b2a0ebea47a28d4d5d21d7a2234) )
ROM_LOAD( "bm1v", 0x2000, 0x0800, CRC(cc97c890) SHA1(e852bfe9d4b2d31801a840c1bacdd4386a93a22f) )
ROM_LOAD( "bm2v", 0x2800, 0x0800, CRC(2858cf5c) SHA1(1313b4e4adda074499153e4a42bc2c6b41b0ec7e) )
ROM_END
GAME( 1980, spcforce, 0, spcforce, spcforce, 0, ROT270, "Venture Line", "Space Force (set 1)", GAME_IMPERFECT_COLORS )
GAME( 19??, spcforc2, spcforce, spcforce, spcforc2, 0, ROT270, "bootleg? (Elcon)", "Space Force (set 2)", GAME_IMPERFECT_COLORS )
GAME( 1981, meteor, spcforce, spcforce, spcforc2, 0, ROT270, "Venture Line", "Meteoroids", GAME_IMPERFECT_COLORS )