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Diffstat (limited to 'src/mame/drivers/exprraid.c')
-rw-r--r--src/mame/drivers/exprraid.c619
1 files changed, 619 insertions, 0 deletions
diff --git a/src/mame/drivers/exprraid.c b/src/mame/drivers/exprraid.c
new file mode 100644
index 00000000000..43c0250b15d
--- /dev/null
+++ b/src/mame/drivers/exprraid.c
@@ -0,0 +1,619 @@
+/***************************************************************************
+
+Express Raider - (c) 1986 Data East USA
+
+Ernesto Corvi
+ernesto@imagina.com
+
+Last Modified 14th Jul 2003
+
+Memory Map:
+Main CPU: ( 6502 )
+0000-05ff RAM
+0600-07ff Sprites
+0800-0bff Videoram
+0c00-0fff Colorram
+1800-1800 DSW 0
+1801-1801 Controls
+1802-1802 Coins
+1803-1803 DSW 1
+2100-2100 Sound latch write
+2800-2801 Protection
+3800-3800 VBblank ( bootleg 1 only )
+4000-ffff MRA8_ROM
+
+Sound Cpu: ( 6809 )
+0000-1fff RAM
+2000-2001 YM2203
+4000-4001 YM3526
+6000-6000 Sound latch read
+8000-ffff ROM
+
+NOTES:
+The main 6502 cpu is a custom one. The differences with a regular 6502 is as follows:
+- Extra opcode ( $4b00 ), wich i think reads an external port. VBlank irq is on bit 1 ( 0x02 ).
+- Reset, IRQ and NMI vectors are moved.
+
+Also, there was some protection circuitry which is now emulated.
+
+The way i dealt with the custom opcode was to change it to return memory
+position $ff (wich i verified is not used by the game). And i hacked in
+a read handler wich returns the vblank on bit 1. It's an ugly hack, but
+works fine.
+
+The bootleg version patched the rom to get rid of the extra opcode ( bootlegs
+used a regular 6502 ), the vectors hardcoded in place, and also had the
+protection cracked.
+
+The background tiles had a very ugly encoding. It was so ugly that our
+decode gfx routine will not be able to decode it without some little help.
+So thats why exprraid_gfx_expand() is there. Many thanks to Phil
+Stroffolino, who figured out the encoding.
+
+NOTES ON THE BOOTLEGS:
+
+1st bootleg set expects to read vblank status from 0x3800, country warning
+sign has been defaced by the bootleggers
+
+2nd bootleg set expects to read vblank status from 0xFFC0, country warning
+sign is intact, however Credit is spelt incorrectly.
+
+***************************************************************************/
+
+#include "driver.h"
+#include "cpu/m6809/m6809.h"
+#include "sound/2203intf.h"
+#include "sound/3812intf.h"
+
+
+extern WRITE8_HANDLER( exprraid_videoram_w );
+extern WRITE8_HANDLER( exprraid_colorram_w );
+extern WRITE8_HANDLER( exprraid_flipscreen_w );
+extern WRITE8_HANDLER( exprraid_bgselect_w );
+extern WRITE8_HANDLER( exprraid_scrollx_w );
+extern WRITE8_HANDLER( exprraid_scrolly_w );
+
+extern VIDEO_START( exprraid );
+extern VIDEO_UPDATE( exprraid );
+
+
+/*****************************************************************************************/
+/* Emulate Protection ( only for original express raider, code is cracked on the bootleg */
+/*****************************************************************************************/
+
+static UINT8 *main_ram;
+
+static READ8_HANDLER( exprraid_protection_r )
+{
+ switch (offset)
+ {
+ case 0:
+ return main_ram[0x02a9];
+ case 1:
+ return 0x02;
+ }
+
+ return 0;
+}
+
+static WRITE8_HANDLER( sound_cpu_command_w )
+{
+ soundlatch_w(0,data);
+ cpunum_set_input_line(1,INPUT_LINE_NMI,PULSE_LINE);
+}
+
+static READ8_HANDLER( vblank_r )
+{
+ int val = readinputport( 0 );
+
+ if ( ( val & 0x02 ) )
+ cpu_spin();
+
+ return val;
+}
+
+static ADDRESS_MAP_START( master_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x00ff, 0x00ff) AM_READ(vblank_r) /* HACK!!!! see init_exprraid below */
+ AM_RANGE(0x0000, 0x05ff) AM_RAM AM_BASE(&main_ram)
+ AM_RANGE(0x0600, 0x07ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
+ AM_RANGE(0x0800, 0x0bff) AM_RAM AM_WRITE(exprraid_videoram_w) AM_BASE(&videoram)
+ AM_RANGE(0x0c00, 0x0fff) AM_RAM AM_WRITE(exprraid_colorram_w) AM_BASE(&colorram)
+ AM_RANGE(0x1317, 0x1317) AM_READNOP // ???
+ AM_RANGE(0x1700, 0x1700) AM_READNOP // ???
+ AM_RANGE(0x1800, 0x1800) AM_READ(input_port_1_r) /* DSW 0 */
+ AM_RANGE(0x1801, 0x1801) AM_READ(input_port_2_r) /* Controls */
+ AM_RANGE(0x1802, 0x1802) AM_READ(input_port_3_r) /* Coins */
+ AM_RANGE(0x1803, 0x1803) AM_READ(input_port_4_r) /* DSW 1 */
+ AM_RANGE(0x2000, 0x2000) AM_WRITENOP // ???
+ AM_RANGE(0x2001, 0x2001) AM_WRITE(sound_cpu_command_w)
+ AM_RANGE(0x2002, 0x2002) AM_WRITE(exprraid_flipscreen_w)
+ AM_RANGE(0x2003, 0x2003) AM_WRITENOP // ???
+ AM_RANGE(0x2800, 0x2801) AM_READ(exprraid_protection_r)
+ AM_RANGE(0x2800, 0x2803) AM_WRITE(exprraid_bgselect_w)
+ AM_RANGE(0x2804, 0x2804) AM_WRITE(exprraid_scrolly_w)
+ AM_RANGE(0x2805, 0x2806) AM_WRITE(exprraid_scrollx_w)
+ AM_RANGE(0x2807, 0x2807) AM_WRITENOP // Scroll related ?
+ AM_RANGE(0x4000, 0xffff) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( slave_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x1fff) AM_RAM
+ AM_RANGE(0x2000, 0x2000) AM_READWRITE(YM2203_status_port_0_r, YM2203_control_port_0_w)
+ AM_RANGE(0x2001, 0x2001) AM_READWRITE(YM2203_read_port_0_r, YM2203_write_port_0_w)
+ AM_RANGE(0x4000, 0x4000) AM_READWRITE(YM3526_status_port_0_r, YM3526_control_port_0_w)
+ AM_RANGE(0x4001, 0x4001) AM_WRITE(YM3526_write_port_0_w)
+ AM_RANGE(0x6000, 0x6000) AM_READ(soundlatch_r)
+ AM_RANGE(0x8000, 0xffff) AM_ROM
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( exprraid )
+ PORT_START /* IN 0 - 0x3800 */
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_VBLANK )
+
+ PORT_START /* DSW 0 - 0x1800 */
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_3C ) )
+ PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_3C ) )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x00, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Cocktail ) )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* IN 1 - 0x1801 */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
+
+ PORT_START /* IN 2 - 0x1802 */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )
+
+ PORT_START /* IN 3 - 0x1803 */
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x01, "1" )
+ PORT_DIPSETTING( 0x03, "3" )
+ PORT_DIPSETTING( 0x02, "5" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Infinite ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Bonus_Life ) )
+ PORT_DIPSETTING( 0x04, "50K+" )
+ PORT_DIPSETTING( 0x00, "50K 80K" )
+ PORT_DIPNAME( 0x18, 0x18, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x18, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Very_Hard ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
+INPUT_PORTS_END
+
+
+
+static const gfx_layout charlayout =
+{
+ 8,8, /* 8*8 characters */
+ 1024, /* 1024 characters */
+ 2, /* 2 bits per pixel */
+ { 0, 4 }, /* the bitplanes are packed in the same byte */
+ { (0x2000*8)+0, (0x2000*8)+1, (0x2000*8)+2, (0x2000*8)+3, 0, 1, 2, 3 },
+ { 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 const gfx_layout spritelayout =
+{
+ 16,16, /* 16*16 sprites */
+ 2048, /* 2048 sprites */
+ 3, /* 3 bits per pixel */
+ { 2*2048*32*8, 2048*32*8, 0 }, /* the bitplanes are separated */
+ { 128+0, 128+1, 128+2, 128+3, 128+4, 128+5, 128+6, 128+7, 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, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
+ 32*8 /* every char takes 32 consecutive bytes */
+};
+
+static const gfx_layout tile1 =
+{
+ 16,16, /* 16*16 tiles */
+ 128, /* 128 tiles */
+ 3, /* 3 bits per pixel */
+ { 4, 0x10000*8+0, 0x10000*8+4 },
+ { 0, 1, 2, 3, 1024*32*2,1024*32*2+1,1024*32*2+2,1024*32*2+3,
+ 128+0,128+1,128+2,128+3,128+1024*32*2,128+1024*32*2+1,128+1024*32*2+2,128+1024*32*2+3 }, /* BOGUS */
+ { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8,
+ 64+0*8,64+1*8,64+2*8,64+3*8,64+4*8,64+5*8,64+6*8,64+7*8 },
+ 32*8
+};
+
+static const gfx_layout tile2 =
+{
+ 16,16, /* 16*16 tiles */
+ 128, /* 128 tiles */
+ 3, /* 3 bits per pixel */
+ { 0, 0x11000*8+0, 0x11000*8+4 },
+ { 0, 1, 2, 3, 1024*32*2,1024*32*2+1,1024*32*2+2,1024*32*2+3,
+ 128+0,128+1,128+2,128+3,128+1024*32*2,128+1024*32*2+1,128+1024*32*2+2,128+1024*32*2+3 }, /* BOGUS */
+ { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8,
+ 64+0*8,64+1*8,64+2*8,64+3*8,64+4*8,64+5*8,64+6*8,64+7*8 },
+ 32*8
+};
+
+
+static GFXDECODE_START( exprraid )
+ GFXDECODE_ENTRY( REGION_GFX1, 0x00000, charlayout, 128, 2 ) /* characters */
+ GFXDECODE_ENTRY( REGION_GFX2, 0x00000, spritelayout, 64, 8 ) /* sprites */
+ GFXDECODE_ENTRY( REGION_GFX3, 0x00000, tile1, 0, 4 ) /* background tiles */
+ GFXDECODE_ENTRY( REGION_GFX3, 0x00000, tile2, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x04000, tile1, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x04000, tile2, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x08000, tile1, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x08000, tile2, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x0c000, tile1, 0, 4 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x0c000, tile2, 0, 4 )
+GFXDECODE_END
+
+
+
+/* handler called by the 3812 emulator when the internal timers cause an IRQ */
+static void irqhandler(int linestate)
+{
+ cpunum_set_input_line_and_vector(1,0,linestate,0xff);
+}
+
+static struct YM3526interface ym3526_interface =
+{
+ irqhandler
+};
+
+static INTERRUPT_GEN( exprraid_interrupt )
+{
+ static int coin = 0;
+
+ if ( ( ~readinputport( 3 ) ) & 0xc0 ) {
+ if ( coin == 0 ) {
+ coin = 1;
+ cpunum_set_input_line(0, INPUT_LINE_NMI, PULSE_LINE);
+ }
+ } else
+ coin = 0;
+}
+
+static MACHINE_DRIVER_START( exprraid )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(M6502, 4000000) /* 4 MHz ??? */
+ MDRV_CPU_PROGRAM_MAP(master_map, 0)
+ MDRV_CPU_VBLANK_INT(exprraid_interrupt,1)
+
+ MDRV_CPU_ADD(M6809, 2000000) /* 2 MHz ??? */
+ MDRV_CPU_PROGRAM_MAP(slave_map, 0)
+ /* IRQs are caused by the YM3526 */
+ MDRV_SCREEN_REFRESH_RATE(60)
+ MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_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(1*8, 31*8-1, 1*8, 31*8-1)
+ MDRV_GFXDECODE(exprraid)
+ MDRV_PALETTE_LENGTH(256)
+
+ MDRV_PALETTE_INIT(RRRR_GGGG_BBBB)
+ MDRV_VIDEO_START(exprraid)
+ MDRV_VIDEO_UPDATE(exprraid)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(YM2203, 1500000)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
+
+ MDRV_SOUND_ADD(YM3526, 3600000)
+ MDRV_SOUND_CONFIG(ym3526_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.60)
+MACHINE_DRIVER_END
+
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( exprraid )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "cz01", 0x4000, 0x4000, CRC(dc8f9fba) SHA1(cae6af54fc0081d606b6884e8873aed356a37ba9) )
+ ROM_LOAD( "cz00", 0x8000, 0x8000, CRC(a81290bc) SHA1(ddb0acda6124427bee691f9926c41fda27ed816e) )
+
+ ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the sub cpu */
+ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) )
+
+ ROM_REGION( 0x04000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz09", 0x00000, 0x8000, CRC(1ed250d1) SHA1(c98b0440e4319308e683e857bbfeb6a150c76ff3) ) /* sprites */
+ ROM_LOAD( "cz08", 0x08000, 0x8000, CRC(2293fc61) SHA1(bf81db375f5424396559dcf0e04d34a52f6a020a) )
+ ROM_LOAD( "cz13", 0x10000, 0x8000, CRC(7c3bfd00) SHA1(87b48e09aaeacf78f3260df893b0922e25d10a5d) )
+ ROM_LOAD( "cz12", 0x18000, 0x8000, CRC(ea2294c8) SHA1(bc996351921e68e6237cee2d29fee882931ce0ea) )
+ ROM_LOAD( "cz11", 0x20000, 0x8000, CRC(b7418335) SHA1(e9d08ee651b9221c371e2629a757bceca7b6192b) )
+ ROM_LOAD( "cz10", 0x28000, 0x8000, CRC(2f611978) SHA1(fb60be573184d2af1dfdd543e68eeec53f2788f2) )
+
+ ROM_REGION( 0x20000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz04", 0x00000, 0x8000, CRC(643a1bd3) SHA1(b23631d96cb413808f65f3ebe8fe6539b6140606) ) /* tiles */
+ /* Save 0x08000-0x0ffff to expand the previous so we can decode the thing */
+ ROM_LOAD( "cz05", 0x10000, 0x8000, CRC(c44570bf) SHA1(3e9b8b6b36c7f5ae016dba3987ea19a29bd5ee5b) ) /* tiles */
+ ROM_LOAD( "cz06", 0x18000, 0x8000, CRC(b9bb448b) SHA1(84974b1f3a5b58cd427d874f805a6dd9244c1101) ) /* tiles */
+
+ ROM_REGION( 0x8000, REGION_GFX4, 0 ) /* background tilemaps */
+ ROM_LOAD( "cz03", 0x0000, 0x8000, CRC(6ce11971) SHA1(16bfa69b3ad02253e81c8110c9b840be03952790) )
+
+ ROM_REGION( 0x0400, REGION_PROMS, 0 )
+ ROM_LOAD( "cz17.prm", 0x0000, 0x0100, CRC(da31dfbc) SHA1(ac476440864f538918f7bef2e1db82fd19195f89) ) /* red */
+ ROM_LOAD( "cz16.prm", 0x0100, 0x0100, CRC(51f25b4c) SHA1(bfcca57613fbb22919e00db1f6a8c7ca50faa60b) ) /* green */
+ ROM_LOAD( "cz15.prm", 0x0200, 0x0100, CRC(a6168d7f) SHA1(0c7b31adcd764ce2631c3fb5c1a968b01f65e741) ) /* blue */
+ ROM_LOAD( "cz14.prm", 0x0300, 0x0100, CRC(52aad300) SHA1(ff09772b930afa87e28d0628ef85a589a3d149c9) ) /* ??? */
+
+ ROM_REGION( 0x0400, REGION_PLDS, ROMREGION_DISPOSE )
+ ROM_LOAD( "pal16r4a.5c", 0x0000, 0x0104, CRC(d66aaa87) SHA1(dc29b473238ed6a9de2076c79644b613a9ba6924) )
+ ROM_LOAD( "pal16r4a.5e", 0x0200, 0x0104, CRC(9a8766a7) SHA1(5f84ad9e633daeb14531ef527827ef3d9b269437) )
+ROM_END
+
+ROM_START( exprrada )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "cz01-2e.15a", 0x4000, 0x4000, CRC(a0ae6756) SHA1(7f7ec1efddbb62e9d201c6013bca8ab72c3f75f6) )
+ ROM_LOAD( "cz00-4e.16b", 0x8000, 0x8000, CRC(910f6ccc) SHA1(1dbf164a7add9335d90ee07b6db9a162a28e407b) )
+
+ ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the sub cpu */
+ ROM_LOAD( "cz02-1.2a", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) )
+
+ ROM_REGION( 0x04000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz07.5b", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz09.16h", 0x00000, 0x8000, CRC(1ed250d1) SHA1(c98b0440e4319308e683e857bbfeb6a150c76ff3) ) /* sprites */
+ ROM_LOAD( "cz08.14h", 0x08000, 0x8000, CRC(2293fc61) SHA1(bf81db375f5424396559dcf0e04d34a52f6a020a) )
+ ROM_LOAD( "cz13.16k", 0x10000, 0x8000, CRC(7c3bfd00) SHA1(87b48e09aaeacf78f3260df893b0922e25d10a5d) )
+ ROM_LOAD( "cz12.14k", 0x18000, 0x8000, CRC(ea2294c8) SHA1(bc996351921e68e6237cee2d29fee882931ce0ea) )
+ ROM_LOAD( "cz11.13k", 0x20000, 0x8000, CRC(b7418335) SHA1(e9d08ee651b9221c371e2629a757bceca7b6192b) )
+ ROM_LOAD( "cz10.11k", 0x28000, 0x8000, CRC(2f611978) SHA1(fb60be573184d2af1dfdd543e68eeec53f2788f2) )
+
+ ROM_REGION( 0x20000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz04.8e", 0x00000, 0x8000, CRC(643a1bd3) SHA1(b23631d96cb413808f65f3ebe8fe6539b6140606) ) /* tiles */
+ /* Save 0x08000-0x0ffff to expand the previous so we can decode the thing */
+ ROM_LOAD( "cz05.8f", 0x10000, 0x8000, CRC(c44570bf) SHA1(3e9b8b6b36c7f5ae016dba3987ea19a29bd5ee5b) ) /* tiles */
+ ROM_LOAD( "cz06.8h", 0x18000, 0x8000, CRC(b9bb448b) SHA1(84974b1f3a5b58cd427d874f805a6dd9244c1101) ) /* tiles */
+
+ ROM_REGION( 0x8000, REGION_GFX4, 0 ) /* background tilemaps */
+ ROM_LOAD( "cz03.12d", 0x0000, 0x8000, CRC(6ce11971) SHA1(16bfa69b3ad02253e81c8110c9b840be03952790) )
+
+ ROM_REGION( 0x0400, REGION_PROMS, 0 )
+ ROM_LOAD( "cz17.prm", 0x0000, 0x0100, CRC(da31dfbc) SHA1(ac476440864f538918f7bef2e1db82fd19195f89) ) /* red */
+ ROM_LOAD( "cz16.prm", 0x0100, 0x0100, CRC(51f25b4c) SHA1(bfcca57613fbb22919e00db1f6a8c7ca50faa60b) ) /* green */
+ ROM_LOAD( "cz15.prm", 0x0200, 0x0100, CRC(a6168d7f) SHA1(0c7b31adcd764ce2631c3fb5c1a968b01f65e741) ) /* blue */
+ ROM_LOAD( "cz14.prm", 0x0300, 0x0100, CRC(52aad300) SHA1(ff09772b930afa87e28d0628ef85a589a3d149c9) ) /* ??? */
+
+ ROM_REGION( 0x0400, REGION_PLDS, ROMREGION_DISPOSE )
+ ROM_LOAD( "pal16r4a.5c", 0x0000, 0x0104, CRC(d66aaa87) SHA1(dc29b473238ed6a9de2076c79644b613a9ba6924) )
+ ROM_LOAD( "pal16r4a.5e", 0x0200, 0x0104, CRC(9a8766a7) SHA1(5f84ad9e633daeb14531ef527827ef3d9b269437) )
+ROM_END
+
+ROM_START( wexpress )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "2", 0x4000, 0x4000, CRC(ea5e5a8f) SHA1(fa92bcb6b97c2966cd330b309eba73f9c059f14e) )
+ ROM_LOAD( "1", 0x8000, 0x8000, CRC(a7daae12) SHA1(a97f4bc05a3ec096d8c717bdf096f4b0e59dc2c2) )
+
+ ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the sub cpu */
+ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) )
+
+ ROM_REGION( 0x04000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz09", 0x00000, 0x8000, CRC(1ed250d1) SHA1(c98b0440e4319308e683e857bbfeb6a150c76ff3) ) /* sprites */
+ ROM_LOAD( "cz08", 0x08000, 0x8000, CRC(2293fc61) SHA1(bf81db375f5424396559dcf0e04d34a52f6a020a) )
+ ROM_LOAD( "cz13", 0x10000, 0x8000, CRC(7c3bfd00) SHA1(87b48e09aaeacf78f3260df893b0922e25d10a5d) )
+ ROM_LOAD( "cz12", 0x18000, 0x8000, CRC(ea2294c8) SHA1(bc996351921e68e6237cee2d29fee882931ce0ea) )
+ ROM_LOAD( "cz11", 0x20000, 0x8000, CRC(b7418335) SHA1(e9d08ee651b9221c371e2629a757bceca7b6192b) )
+ ROM_LOAD( "cz10", 0x28000, 0x8000, CRC(2f611978) SHA1(fb60be573184d2af1dfdd543e68eeec53f2788f2) )
+
+ ROM_REGION( 0x20000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "4", 0x00000, 0x8000, CRC(f2e93ff0) SHA1(2e631966e1fa0b2699aa782b589d36801072ba03) ) /* tiles */
+ /* Save 0x08000-0x0ffff to expand the previous so we can decode the thing */
+ ROM_LOAD( "cz05", 0x10000, 0x8000, CRC(c44570bf) SHA1(3e9b8b6b36c7f5ae016dba3987ea19a29bd5ee5b) ) /* tiles */
+ ROM_LOAD( "6", 0x18000, 0x8000, CRC(c3a56de5) SHA1(aefc516c6c69b12291c0bda03729910181a91a17) ) /* tiles */
+
+ ROM_REGION( 0x8000, REGION_GFX4, 0 ) /* background tilemaps */
+ ROM_LOAD( "3", 0x0000, 0x8000, CRC(242e3e64) SHA1(4fa8e93ef055bfdbe3bd619c53bf2448e1b832f0) )
+
+ ROM_REGION( 0x0400, REGION_PROMS, 0 )
+ ROM_LOAD( "cz17.prm", 0x0000, 0x0100, CRC(da31dfbc) SHA1(ac476440864f538918f7bef2e1db82fd19195f89) ) /* red */
+ ROM_LOAD( "cz16.prm", 0x0100, 0x0100, CRC(51f25b4c) SHA1(bfcca57613fbb22919e00db1f6a8c7ca50faa60b) ) /* green */
+ ROM_LOAD( "cz15.prm", 0x0200, 0x0100, CRC(a6168d7f) SHA1(0c7b31adcd764ce2631c3fb5c1a968b01f65e741) ) /* blue */
+ ROM_LOAD( "cz14.prm", 0x0300, 0x0100, CRC(52aad300) SHA1(ff09772b930afa87e28d0628ef85a589a3d149c9) ) /* ??? */
+
+ ROM_REGION( 0x0400, REGION_PLDS, ROMREGION_DISPOSE )
+ ROM_LOAD( "pal16r4a.5c", 0x0000, 0x0104, CRC(d66aaa87) SHA1(dc29b473238ed6a9de2076c79644b613a9ba6924) )
+ ROM_LOAD( "pal16r4a.5e", 0x0200, 0x0104, CRC(9a8766a7) SHA1(5f84ad9e633daeb14531ef527827ef3d9b269437) )
+ROM_END
+
+ROM_START( wexpresb )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "wexpress.3", 0x4000, 0x4000, CRC(b4dd0fa4) SHA1(8d17eb28ae92486c67859871ea2bef8f50f39dbd) )
+ ROM_LOAD( "wexpress.1", 0x8000, 0x8000, CRC(e8466596) SHA1(dbbd3b84d0f017292595fc19f7412b984851221a) )
+
+ ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the sub cpu */
+ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) )
+
+ ROM_REGION( 0x04000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz09", 0x00000, 0x8000, CRC(1ed250d1) SHA1(c98b0440e4319308e683e857bbfeb6a150c76ff3) ) /* sprites */
+ ROM_LOAD( "cz08", 0x08000, 0x8000, CRC(2293fc61) SHA1(bf81db375f5424396559dcf0e04d34a52f6a020a) )
+ ROM_LOAD( "cz13", 0x10000, 0x8000, CRC(7c3bfd00) SHA1(87b48e09aaeacf78f3260df893b0922e25d10a5d) )
+ ROM_LOAD( "cz12", 0x18000, 0x8000, CRC(ea2294c8) SHA1(bc996351921e68e6237cee2d29fee882931ce0ea) )
+ ROM_LOAD( "cz11", 0x20000, 0x8000, CRC(b7418335) SHA1(e9d08ee651b9221c371e2629a757bceca7b6192b) )
+ ROM_LOAD( "cz10", 0x28000, 0x8000, CRC(2f611978) SHA1(fb60be573184d2af1dfdd543e68eeec53f2788f2) )
+
+ ROM_REGION( 0x20000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "4", 0x00000, 0x8000, CRC(f2e93ff0) SHA1(2e631966e1fa0b2699aa782b589d36801072ba03) ) /* tiles */
+ /* Save 0x08000-0x0ffff to expand the previous so we can decode the thing */
+ ROM_LOAD( "cz05", 0x10000, 0x8000, CRC(c44570bf) SHA1(3e9b8b6b36c7f5ae016dba3987ea19a29bd5ee5b) ) /* tiles */
+ ROM_LOAD( "6", 0x18000, 0x8000, CRC(c3a56de5) SHA1(aefc516c6c69b12291c0bda03729910181a91a17) ) /* tiles */
+
+ ROM_REGION( 0x8000, REGION_GFX4, 0 ) /* background tilemaps */
+ ROM_LOAD( "3", 0x0000, 0x8000, CRC(242e3e64) SHA1(4fa8e93ef055bfdbe3bd619c53bf2448e1b832f0) )
+
+ ROM_REGION( 0x0400, REGION_PROMS, 0 )
+ ROM_LOAD( "cz17.prm", 0x0000, 0x0100, CRC(da31dfbc) SHA1(ac476440864f538918f7bef2e1db82fd19195f89) ) /* red */
+ ROM_LOAD( "cz16.prm", 0x0100, 0x0100, CRC(51f25b4c) SHA1(bfcca57613fbb22919e00db1f6a8c7ca50faa60b) ) /* green */
+ ROM_LOAD( "cz15.prm", 0x0200, 0x0100, CRC(a6168d7f) SHA1(0c7b31adcd764ce2631c3fb5c1a968b01f65e741) ) /* blue */
+ ROM_LOAD( "cz14.prm", 0x0300, 0x0100, CRC(52aad300) SHA1(ff09772b930afa87e28d0628ef85a589a3d149c9) ) /* ??? */
+ROM_END
+
+ROM_START( wexpresc )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "s2", 0x4000, 0x4000, CRC(40d70fcb) SHA1(1327d39f872a39e020972952e5756ca59c55f9d0) )
+ ROM_LOAD( "s1", 0x8000, 0x8000, CRC(7c573824) SHA1(f5e4d4f0866c08c88d012a77e8aa2e74a779f986) )
+
+ ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the sub cpu */
+ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) )
+
+ ROM_REGION( 0x04000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "cz09", 0x00000, 0x8000, CRC(1ed250d1) SHA1(c98b0440e4319308e683e857bbfeb6a150c76ff3) ) /* sprites */
+ ROM_LOAD( "cz08", 0x08000, 0x8000, CRC(2293fc61) SHA1(bf81db375f5424396559dcf0e04d34a52f6a020a) )
+ ROM_LOAD( "cz13", 0x10000, 0x8000, CRC(7c3bfd00) SHA1(87b48e09aaeacf78f3260df893b0922e25d10a5d) )
+ ROM_LOAD( "cz12", 0x18000, 0x8000, CRC(ea2294c8) SHA1(bc996351921e68e6237cee2d29fee882931ce0ea) )
+ ROM_LOAD( "cz11", 0x20000, 0x8000, CRC(b7418335) SHA1(e9d08ee651b9221c371e2629a757bceca7b6192b) )
+ ROM_LOAD( "cz10", 0x28000, 0x8000, CRC(2f611978) SHA1(fb60be573184d2af1dfdd543e68eeec53f2788f2) )
+
+ ROM_REGION( 0x20000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "4", 0x00000, 0x8000, CRC(f2e93ff0) SHA1(2e631966e1fa0b2699aa782b589d36801072ba03) ) /* tiles */
+ /* Save 0x08000-0x0ffff to expand the previous so we can decode the thing */
+ ROM_LOAD( "cz05", 0x10000, 0x8000, CRC(c44570bf) SHA1(3e9b8b6b36c7f5ae016dba3987ea19a29bd5ee5b) ) /* tiles */
+ ROM_LOAD( "6", 0x18000, 0x8000, CRC(c3a56de5) SHA1(aefc516c6c69b12291c0bda03729910181a91a17) ) /* tiles */
+
+ ROM_REGION( 0x8000, REGION_GFX4, 0 ) /* background tilemaps */
+ ROM_LOAD( "3", 0x0000, 0x8000, CRC(242e3e64) SHA1(4fa8e93ef055bfdbe3bd619c53bf2448e1b832f0) )
+ /* Proms Weren't Present In This Set, Using the One from the Other */
+ ROM_REGION( 0x0400, REGION_PROMS, 0 )
+ ROM_LOAD( "cz17.prm", 0x0000, 0x0100, CRC(da31dfbc) SHA1(ac476440864f538918f7bef2e1db82fd19195f89) ) /* red */
+ ROM_LOAD( "cz16.prm", 0x0100, 0x0100, CRC(51f25b4c) SHA1(bfcca57613fbb22919e00db1f6a8c7ca50faa60b) ) /* green */
+ ROM_LOAD( "cz15.prm", 0x0200, 0x0100, CRC(a6168d7f) SHA1(0c7b31adcd764ce2631c3fb5c1a968b01f65e741) ) /* blue */
+ ROM_LOAD( "cz14.prm", 0x0300, 0x0100, CRC(52aad300) SHA1(ff09772b930afa87e28d0628ef85a589a3d149c9) ) /* ??? */
+ROM_END
+
+
+static void exprraid_gfx_expand(void)
+{
+ /* Expand the background rom so we can use regular decode routines */
+
+ UINT8 *gfx = memory_region(REGION_GFX3);
+ int offs = 0x10000-0x1000;
+ int i;
+
+
+ for ( i = 0x8000-0x1000; i >= 0; i-= 0x1000 )
+ {
+ memcpy( &(gfx[offs]), &(gfx[i]), 0x1000 );
+
+ offs -= 0x1000;
+
+ memcpy( &(gfx[offs]), &(gfx[i]), 0x1000 );
+
+ offs -= 0x1000;
+ }
+}
+
+
+static void patch_rom1(void)
+{
+ UINT8 *rom = memory_region(REGION_CPU1);
+ int i;
+
+ /* HACK!: Implement custom opcode as regular with a mapped io read */
+ for ( i = 0; i < 0x10000; i++ )
+ {
+ /* make sure is what we want to patch */
+ if ( rom[i] == 0x4b && rom[i+1] == 0x00 && rom[i+2] == 0x29 && rom[i+3] == 0x02 )
+ {
+ /* replace custom opcode with: LDA $FF */
+ rom[i] = 0xa5;
+ i++;
+ rom[i] = 0xff;
+ }
+ }
+}
+
+static DRIVER_INIT( wexpress )
+{
+ patch_rom1();
+ exprraid_gfx_expand();
+}
+
+static DRIVER_INIT( exprraid )
+{
+ UINT8 *rom = memory_region(REGION_CPU1);
+
+
+ /* decode vectors */
+ rom[0xfffa] = rom[0xfff7];
+ rom[0xfffb] = rom[0xfff6];
+
+ rom[0xfffc] = rom[0xfff1];
+ rom[0xfffd] = rom[0xfff0];
+
+ rom[0xfffe] = rom[0xfff3];
+ rom[0xffff] = rom[0xfff2];
+
+ patch_rom1();
+ exprraid_gfx_expand();
+}
+
+static DRIVER_INIT( wexpresb )
+{
+ memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0x3800, 0x3800, 0, 0, vblank_r);
+ exprraid_gfx_expand();
+}
+
+static DRIVER_INIT( wexpresc )
+{
+ memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xFFC0, 0xFFC0, 0, 0, vblank_r);
+ exprraid_gfx_expand();
+}
+
+
+GAME( 1986, exprraid, 0, exprraid, exprraid, exprraid, ROT0, "Data East USA", "Express Raider (US)", 0 )
+GAME( 1986, exprrada, exprraid, exprraid, exprraid, exprraid, ROT0, "Data East USA", "Express Raider (US set 2)", 0 )
+GAME( 1986, wexpress, exprraid, exprraid, exprraid, wexpress, ROT0, "Data East Corporation", "Western Express (World?)", 0 )
+GAME( 1986, wexpresb, exprraid, exprraid, exprraid, wexpresb, ROT0, "bootleg", "Western Express (bootleg set 1)", 0 )
+GAME( 1986, wexpresc, exprraid, exprraid, exprraid, wexpresc, ROT0, "bootleg", "Western Express (bootleg set 2)", 0 )