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Diffstat (limited to 'src/mame/drivers/battlex.c')
-rw-r--r--src/mame/drivers/battlex.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/src/mame/drivers/battlex.c b/src/mame/drivers/battlex.c
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index 00000000000..b114719f317
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+++ b/src/mame/drivers/battlex.c
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+/* battlex.c - by David Haywood
+
+Stephh's notes :
+
+ - I don't know exactly how to call the "Free Play" Dip Switch 8(
+ It's effect is the following :
+ * you need to insert at least one credit and start a game
+ * when the game is over, you can start another games WITHOUT
+ inserting another coins
+ Note that the number of credits is decremented though.
+ Credits are BCD coded on 3 bytes (0x000000-0x999999) at addresses
+ 0xa039 (LSB), 0xa03a and 0xa03b (MSB), but only the LSB is displayed.
+
+ - Setting the flipscreen dip to ON also hides the copyright message (?)
+
+TO DO :
+
+ - missing starfield
+
+ - game speed, its seems to be controlled by the IRQ's, how fast should it
+ be? firing seems frustratingly inconsistant
+
+ - colors match Tim's screen shots, but there's no guarantee RGB are in the
+ correct order.
+*/
+
+/*
+
+Battle Cross (c)1982 Omori
+
+CPU: Z80A
+Sound: AY-3-8910
+Other: 93419 (in socket marked 93219)
+
+RAM: 4116(x12), 2114(x2), 2114(x6)
+PROMS: none
+
+XTAL: 10.0 MHz
+
+*/
+
+
+#include "driver.h"
+#include "sound/ay8910.h"
+
+
+extern WRITE8_HANDLER( battlex_palette_w );
+extern WRITE8_HANDLER( battlex_videoram_w );
+extern WRITE8_HANDLER( battlex_scroll_x_lsb_w );
+extern WRITE8_HANDLER( battlex_scroll_x_msb_w );
+extern WRITE8_HANDLER( battlex_flipscreen_w );
+
+extern PALETTE_INIT( battlex );
+extern VIDEO_START( battlex );
+extern VIDEO_UPDATE( battlex );
+
+
+/*** MEMORY & PORT READ / WRITE **********************************************/
+
+static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x5fff) AM_READ(MRA8_ROM)
+ AM_RANGE(0x8000, 0x8fff) AM_READ(MRA8_RAM) /* not read? */
+ AM_RANGE(0x9000, 0x91ff) AM_READ(MRA8_RAM) /* not read? */
+ AM_RANGE(0xa000, 0xa3ff) AM_READ(MRA8_RAM)
+ AM_RANGE(0xe000, 0xe03f) AM_READ(MRA8_RAM) /* not read? */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x5fff) AM_WRITE(MWA8_ROM)
+ AM_RANGE(0x8000, 0x8fff) AM_WRITE(battlex_videoram_w) AM_BASE(&videoram)
+ AM_RANGE(0x9000, 0x91ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram)
+ AM_RANGE(0xa000, 0xa3ff) AM_WRITE(MWA8_RAM) /* main */
+ AM_RANGE(0xe000, 0xe03f) AM_WRITE(battlex_palette_w) /* probably palette */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( readport, ADDRESS_SPACE_IO, 8 )
+ ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
+ AM_RANGE(0x00, 0x00) AM_READ(input_port_0_r)
+ AM_RANGE(0x01, 0x01) AM_READ(input_port_1_r)
+ AM_RANGE(0x02, 0x02) AM_READ(input_port_2_r)
+ AM_RANGE(0x03, 0x03) AM_READ(input_port_3_r)
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( writeport, ADDRESS_SPACE_IO, 8 )
+ ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
+ AM_RANGE(0x10, 0x10) AM_WRITE(battlex_flipscreen_w)
+ /* verify all of these */
+ AM_RANGE(0x22, 0x22) AM_WRITE(AY8910_write_port_0_w)
+ AM_RANGE(0x23, 0x23) AM_WRITE(AY8910_control_port_0_w)
+
+ /* 0x30 looks like scroll, but can't be ? changes (increases or decreases)
+ depending on the direction your ship is facing on lev 2. at least */
+ AM_RANGE(0x30, 0x30) AM_WRITE(MWA8_NOP)
+
+ AM_RANGE(0x32, 0x32) AM_WRITE(battlex_scroll_x_lsb_w)
+ AM_RANGE(0x33, 0x33) AM_WRITE(battlex_scroll_x_msb_w)
+ADDRESS_MAP_END
+
+/*** INPUT PORTS *************************************************************/
+
+static INPUT_PORTS_START( battlex )
+ PORT_START /* IN0 */
+ PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Allow_Continue ) ) // Not on 1st stage
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( On ) )
+ PORT_DIPNAME( 0x10, 0x00, "Freeze" ) // VBLANK ?
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+ PORT_DIPNAME( 0x40, 0x00, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START /* IN1 */
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START1 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 )
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
+
+ PORT_START /* IN2 */
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+
+ PORT_START /* IN3 */
+ PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_7C ) )
+ PORT_DIPNAME( 0x18, 0x10, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "1" )
+ PORT_DIPSETTING( 0x08, "2" )
+ PORT_DIPSETTING( 0x10, "3" )
+ PORT_DIPSETTING( 0x18, "5" )
+ PORT_DIPNAME( 0x60, 0x00, DEF_STR( Bonus_Life ) )
+ PORT_DIPSETTING( 0x00, "5000" )
+ PORT_DIPSETTING( 0x20, "10000" )
+ PORT_DIPSETTING( 0x40, "15000" )
+ PORT_DIPSETTING( 0x60, "20000" )
+ PORT_DIPNAME( 0x80, 0x00, DEF_STR( Free_Play ) ) // See notes
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+INPUT_PORTS_END
+
+/*** GFX DECODE **************************************************************/
+
+
+static const gfx_layout battlex_charlayout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 4,
+ { 0,1,2,3 },
+ { 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4 },
+ { 0*8*4, 1*8*4, 2*8*4, 3*8*4, 4*8*4, 5*8*4, 6*8*4, 7*8*4 },
+ 8*8*4
+};
+
+
+static const gfx_layout battlex_spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,3),
+ 3,
+ { 0,RGN_FRAC(1,3),RGN_FRAC(2,3) },
+ { 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 },
+ 16*16
+};
+
+
+static GFXDECODE_START( battlex )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, battlex_charlayout, 0, 8 )
+ GFXDECODE_ENTRY( REGION_GFX2, 0, battlex_spritelayout, 16*8, 8 )
+GFXDECODE_END
+
+/*** MACHINE DRIVERS *********************************************************/
+
+static MACHINE_DRIVER_START( battlex )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(Z80,10000000/2 ) /* 10 MHz, divided ? (Z80A CPU) */
+ MDRV_CPU_PROGRAM_MAP(readmem,writemem)
+ MDRV_CPU_IO_MAP(readport,writeport)
+ MDRV_CPU_VBLANK_INT(irq0_line_hold,8) /* controls game speed? */
+
+ MDRV_SCREEN_REFRESH_RATE(56) /* The video syncs at 15.8k H and 56 V (www.klov.com) */
+ MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_SIZE(32*8, 32*8)
+ MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
+ MDRV_GFXDECODE(battlex)
+ MDRV_PALETTE_LENGTH(16*8+64)
+
+ MDRV_PALETTE_INIT(battlex)
+ MDRV_VIDEO_START(battlex)
+ MDRV_VIDEO_UPDATE(battlex)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(AY8910, 10000000/8)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
+MACHINE_DRIVER_END
+
+
+/*** ROM LOADING *************************************************************/
+
+ROM_START( battlex )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "p-rom1.6", 0x0000, 0x1000, CRC(b00ae551) SHA1(32a963fea23ea58fc3aab93cc814784a932f045e) )
+ ROM_LOAD( "p-rom2.5", 0x1000, 0x1000, CRC(e765bb11) SHA1(99671e63f4c7d3d8754277451f0b35cba03b532d) )
+ ROM_LOAD( "p-rom3.4", 0x2000, 0x1000, CRC(21675a91) SHA1(5bbd5b53b1a1b7aaed5d8c7b09b57f35e4a774dc) )
+ ROM_LOAD( "p-rom4.3", 0x3000, 0x1000, CRC(fff1ccc4) SHA1(2cb9b096b30e441559e57992df8f30aee46b1f1c) )
+ ROM_LOAD( "p-rom5.2", 0x4000, 0x1000, CRC(ceb63d38) SHA1(92cab905d009c59115f52172ba7d01c8ff8991d7) )
+ ROM_LOAD( "p-rom6.1", 0x5000, 0x1000, CRC(6923f601) SHA1(e6c33cbd8d8679299d7b2c568d56f96ed3073971) )
+
+ ROM_REGION( 0x4000, REGION_GFX1, ROMREGION_ERASE00 )
+ /* filled in later */
+// ROM_LOAD( "2732.e", 0x0000, 0x1000, CRC(126842b7) SHA1(2da4f64e077232c1dd0853d07d801f9781517850) )
+
+ ROM_REGION( 0x3000, REGION_GFX2, 0 )
+ ROM_LOAD( "2732.f", 0x0000, 0x1000, CRC(2b69287a) SHA1(30c0edaec44118b95ec390bd41c1bd49a2802451) )
+ ROM_LOAD( "2732.h", 0x1000, 0x1000, CRC(9f4c3bdd) SHA1(e921ecafefe54c033d05d9cd289808e971ac7940) )
+ ROM_LOAD( "2732.j", 0x2000, 0x1000, CRC(c1345b05) SHA1(17194c8ec961990222bd295ff1d036a64f497b0e) )
+
+ ROM_REGION( 0x1000, REGION_USER1, 0 ) /* line colours? or bad? */
+ ROM_LOAD( "2732.d", 0x0000, 0x1000, CRC(750a46ef) SHA1(b6ab93e084ab0b7c6ad90ee6431bc1b7ab9ed46d) )
+
+ ROM_REGION( 0x1000, REGION_USER2, 0 )
+ ROM_LOAD( "2732.e", 0x0000, 0x1000, CRC(126842b7) SHA1(2da4f64e077232c1dd0853d07d801f9781517850) )
+ROM_END
+
+static DRIVER_INIT( battlex )
+{
+ UINT8 *cold = memory_region ( REGION_USER1 );
+ UINT8 *mskd = memory_region ( REGION_USER2 );
+ UINT8 *dest = memory_region ( REGION_GFX1 );
+
+ int outcount;
+
+ /* convert gfx data from 1bpp + color block mask to straight 4bpp */
+ for (outcount = 0; outcount < (0x1000/8); outcount++)
+ {
+ int linecount;
+ for (linecount = 0; linecount < 8; linecount ++)
+ {
+ int bitmask = 0x01;
+ int bitcount;
+
+ for (bitcount = 0;bitcount < 8 ; bitcount ++)
+ {
+ int bit, col;
+ bit = (mskd[outcount*8+linecount] & bitmask) >> bitcount;
+
+ if (bit) col = (cold[outcount*8+(linecount&~1)+(bitcount/4)] & 0x0f) << 4;
+ else col = (cold[outcount*8+(linecount&~1)+(bitcount/4)] & 0xf0);
+
+ dest[outcount*32 + linecount*4 + bitcount /2] |= (col >> (4*(bitcount & 1)));
+ bitmask = bitmask << 1;
+ }
+ }
+ }
+}
+
+/*** GAME DRIVERS ************************************************************/
+
+GAME( 1982, battlex, 0, battlex, battlex, battlex, ROT180, "Omori Electric", "Battle Cross", GAME_IMPERFECT_GRAPHICS )