/*************************************************************************** Express Raider - (c) 1986 Data East Corporation / Data East USA Ernesto Corvi ernesto@imagina.com 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 SMH_ROM ffc0-ffc0 VBblank ( bootleg 2 only ) 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. Stephh's notes (based on the games M6502 code and some tests) : 1) 'exprraid' - "@ 1986 DATA EAST USA, INC." (US) - Number of enemies on "shoot" stages is determined by the level (see code at 0x5d21 where location 0x0e is level number-1). Note that time tables are coded backwards (locomotive first, then 5th wagon, then 4th wagon ... up to 1st wagon). This number of enemies is also supposed to be determined by "Difficulty" settings (DSW1 bits 3 and 4). There is however an ingame bug that reads DSW1 bits 4 and 5 : 5D2F: AD 03 18 lda $1803 5D32: 49 FF eor #$FF 5D34: 4A lsr a 5D35: 4A lsr a 5D36: 4A lsr a 5D37: 29 06 and #$06 So number of enemies is also determined by "Demo Sound" setting ! Correct code shall be : 5D37: 29 03 and #$03 - Time for each wagon on "shoot" stage is determined by the level (see code at 0x6873 where location 0x0e is level number-1). Note that time tables are coded backwards (locomotive first, then 5th wagon, then 4th wagon ... up to 1st wagon). - In the US manual, "bonus lives" settings are told be either "Every 50000" or "50000/80000". However, when you look at code at 0xe4a1, you'll notice that settings shall be "50000 only" and "50000/80000". - "Coin Mode" as well "Mode 2 Coinage" settings (DSW0 bits 0 to 4) are undocumented in the US manual. "Coin Mode" is tested though via code at 0xe7c5. Coinage tables : * 0xe7e2 : COIN1 - 0xe7ea : COIN2 (Mode 1) * 0xe7f2 : COIN1 - 0xe7fa : COIN2 (Mode 2) - "Force Coinage" (DSW1 bit 6) setting is undocumented in the US manual. It is tested though via code at 0xe794. When this Dip Switch is set to "On", pressing COIN1 or COIN2 always adds 1 credit regardless of the "Coinage" and "Coin Mode" settings. - At the begining of each level, you have text in upper case which gives you some hints to pass the level or some advice. - In this version, due to extra code at 0xfd80, you only have 4 wagons for the "shoot" stages instead of 5. - Continue play is always available and score is NOT reset to 0. 2) 'exprrada' - "@ 1986 DATA EAST CORPORATION" + no code to display the Warning screen (World) - Same way to code number of enemies in "shoot" stages as in 'exprraid' (code at 5ce4) and same ingame bug : 5CF4: AD 03 18 lda $1803 5CF7: 49 FF eor #$FF 5CF9: 4A lsr a 5CFA: 4A lsr a 5CFB: 4A lsr a 5CFC: 29 06 and #$06 Correct code shall be : 5CFC: 29 03 and #$03 You'll notice by looking at the tables that there are sometimes more enemies than in 'exprraid'. - Time for each wagon on "shoot" stage is determined by the level (see code at 0x6834 where location 0x0e is level number-1). This time is also supposed to be determined by "Difficulty" settings (DSW1 bits 3 and 4). There is however an ingame bug that reads DSW1 bits 4 and 5 : 683B: AD 03 18 lda $1803 683E: 49 FF eor #$FF 6840: 4A lsr a 6841: 4A lsr a 6842: 4A lsr a 6843: 4A lsr a 6844: 29 03 and #$03 So Time is also determined by "Demo Sound" setting because of extra "lsr a" instruction at 0x6843 ! Correct code shall be : 6843: EA nop Fortunately, table at 0x685f is filled with 0x30 so you'll always have 30 seconds to "clear" the wagon (which is more than the time you have in 'exprraid'). For the locomotive, time is always set to 0x20 = 20 seconds (which is again more than the time you have in 'exprraid'). - "Bonus lives" routine starts at 0xe49b. - Coinage related stuff starts at 0xe78e. Coinage tables : * 0xe7dc : COIN1 - 0xe7e4 : COIN2 (Mode 1) * 0xe7ec : COIN1 - 0xe7f4 : COIN2 (Mode 2) - At the begining of each level, you have text in lower case which doesn't give you any hints to pass the level nor advice. - In this version, you always have 5 wagons for the "shoot" stages. - Continue play is always available but score is reset to 0. 3) 'wexpress' - "@ 1986 DATA EAST CORPORATION" + no code to display the Warning screen (World) - This version is based on 'exprrada' so all comments also fit for this set. The main difference is that reads from 0x2800 and 0x2801 (protection) are either discarded (jumps are noped or patched) or changed to read what shall be the correct value (reads from 0x2801 occur almost all the time). So IMO this set looks like a World bootleg . 4) 'wexpresb' - "@ 1986 DATA EAST CORPORATION" + extra code to display the Warning screen (Japan) - Modified Warning screen - This version is heavily based on 'exprrada' (even if I think that there shall exist a "better" Japan undumped version) so all comments also fit for this set. The main difference is the way protection is bypassed (in a different way than 'wexpress' as reads from 0x2801 only occur when a life is lost). The other difference is that you can NOT continue a game. - "Bonus lives" routine starts at 0xe4e5. - Coinage related stuff starts at 0xe7d8. - Coinage tables : * 0xe826 : COIN1 - 0xe82e : COIN2 (Mode 1) * 0xe836 : COIN1 - 0xe83e : COIN2 (Mode 2) 5) 'wexpresc' - "@ 1986 DATA EAST CORPORATION" + extra code to display the Warning screen (Japan) - Original Warning screen - "CREDIT" mispelled to "CRDDIT". - This version is heavily based on 'exprrada' (even if I think that there shall exist a "better" Japan undumped version) so all comments also fit for this set. The main difference is the way protection is bypassed (in a different way than 'wexpress' but also in a different way than 'wexpresb' as reads from 0x2801 occur when you lose a life but also on "shoot" stages). The other difference is that you can NOT continue a game as in 'wexpresb'. - "Bonus lives" routine starts at 0xe4e5 (same as 'wexpresb') - Coinage related stuff starts at 0xe7d8 (same as 'wexpresb'). - Coinage tables (same as 'wexpresb') : * 0xe826 : COIN1 - 0xe82e : COIN2 (Mode 1) * 0xe836 : COIN1 - 0xe83e : COIN2 (Mode 2) ***************************************************************************/ #include "driver.h" #include "cpu/m6502/m6502.h" #include "cpu/m6809/m6809.h" #include "sound/2203intf.h" #include "sound/3526intf.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(space,0,data); cpu_set_input_line(space->machine->cpu[1],INPUT_LINE_NMI,PULSE_LINE); } static READ8_HANDLER( vblank_r ) { return input_port_read(space->machine, "IN0"); } 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_WRITE(exprraid_videoram_w) AM_BASE(&videoram) AM_RANGE(0x0c00, 0x0fff) AM_RAM_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_PORT("DSW0") /* DSW 0 */ AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN1") /* Controls */ AM_RANGE(0x1802, 0x1802) AM_READ_PORT("IN2") /* Coins */ AM_RANGE(0x1803, 0x1803) AM_READ_PORT("DSW1") /* 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, 0x2001) AM_DEVREADWRITE("ym1", ym2203_r, ym2203_w) AM_RANGE(0x4000, 0x4001) AM_DEVREADWRITE("ym2", ym3526_r, ym3526_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("IN0") /* IN 0 - 0x3800 */ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_VBLANK ) PORT_START("DSW0") /* DSW 0 - 0x1800 */ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:1,2") PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x03, DEF_STR( 1C_2C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x01, DEF_STR( 1C_3C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x01, DEF_STR( 1C_4C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x00, DEF_STR( 1C_6C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:3,4") PORT_DIPSETTING( 0x00, DEF_STR( 4C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x04, DEF_STR( 3C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x0c, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x0c, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x00) PORT_DIPSETTING( 0x08, DEF_STR( 1C_2C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPSETTING( 0x04, DEF_STR( 1C_3C ) ) PORT_CONDITION("DSW0",0x10,PORTCOND_EQUALS,0x10) PORT_DIPNAME( 0x10, 0x10, "Coin Mode" ) PORT_DIPLOCATION("SW1:5") /* see notes */ PORT_DIPSETTING( 0x10, "Mode 1" ) PORT_DIPSETTING( 0x00, "Mode 2" ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:6") PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:5") PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) PORT_DIPSETTING( 0x40, DEF_STR( Cocktail ) ) PORT_DIPUNUSED_DIPLOC( 0x80, IP_ACTIVE_LOW, "SW1:8" ) PORT_START("IN1") /* 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("IN2") /* 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("DSW1") /* DSW 1 - 0x1803 */ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:1,2") 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_DIPLOCATION("SW2:3") /* see notes */ PORT_DIPSETTING( 0x00, "50k 80k" ) PORT_DIPSETTING( 0x04, "50k only" ) PORT_DIPNAME( 0x18, 0x18, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW1:4,5") /* see notes */ PORT_DIPSETTING( 0x18, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x10, 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_DIPLOCATION("SW2:6") /* see notes */ PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, "Force Coinage = 1C/1C" ) PORT_DIPLOCATION("SW2:7") /* see notes */ PORT_DIPSETTING( 0x40, DEF_STR( No ) ) PORT_DIPSETTING( 0x00, DEF_STR( Yes ) ) PORT_DIPUNUSED_DIPLOC( 0x80, IP_ACTIVE_LOW, "SW1:8" ) 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( "gfx1", 0x00000, charlayout, 128, 2 ) /* characters */ GFXDECODE_ENTRY( "gfx2", 0x00000, spritelayout, 64, 8 ) /* sprites */ GFXDECODE_ENTRY( "gfx3", 0x00000, tile1, 0, 4 ) /* background tiles */ GFXDECODE_ENTRY( "gfx3", 0x00000, tile2, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x04000, tile1, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x04000, tile2, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x08000, tile1, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x08000, tile2, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x0c000, tile1, 0, 4 ) GFXDECODE_ENTRY( "gfx3", 0x0c000, tile2, 0, 4 ) GFXDECODE_END /* handler called by the 3812 emulator when the internal timers cause an IRQ */ static void irqhandler(const device_config *device, int linestate) { cpu_set_input_line_and_vector(device->machine->cpu[1],0,linestate,0xff); } static const ym3526_interface ym3526_config = { irqhandler }; static INTERRUPT_GEN( exprraid_interrupt ) { static int coin = 0; if ((~input_port_read(device->machine, "IN2")) & 0xc0 ) { if ( coin == 0 ) { coin = 1; cpu_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE); } } else coin = 0; } static MACHINE_DRIVER_START( exprraid ) /* basic machine hardware */ MDRV_CPU_ADD("maincpu", M6502, 4000000) /* 4 MHz ??? */ MDRV_CPU_PROGRAM_MAP(master_map, 0) MDRV_CPU_VBLANK_INT("screen", exprraid_interrupt) MDRV_CPU_ADD("slave", M6809, 2000000) /* 2 MHz ??? */ MDRV_CPU_PROGRAM_MAP(slave_map, 0) /* IRQs are caused by the YM3526 */ /* video hardware */ MDRV_SCREEN_ADD("screen", RASTER) MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) 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("ym1", YM2203, 1500000) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30) MDRV_SOUND_ADD("ym2", YM3526, 3600000) MDRV_SOUND_CONFIG(ym3526_config) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.60) MACHINE_DRIVER_END /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( exprraid ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "cz01", 0x4000, 0x4000, CRC(dc8f9fba) SHA1(cae6af54fc0081d606b6884e8873aed356a37ba9) ) ROM_LOAD( "cz00", 0x8000, 0x8000, CRC(a81290bc) SHA1(ddb0acda6124427bee691f9926c41fda27ed816e) ) ROM_REGION( 0x10000, "slave", 0 ) /* 64k for the sub cpu */ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) ) ROM_REGION( 0x04000, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */ ROM_REGION( 0x30000, "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, "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, "gfx4", 0 ) /* background tilemaps */ ROM_LOAD( "cz03", 0x0000, 0x8000, CRC(6ce11971) SHA1(16bfa69b3ad02253e81c8110c9b840be03952790) ) ROM_REGION( 0x0400, "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, "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, "maincpu", 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, "slave", 0 ) /* 64k for the sub cpu */ ROM_LOAD( "cz02-1.2a", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) ) ROM_REGION( 0x04000, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "cz07.5b", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */ ROM_REGION( 0x30000, "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, "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, "gfx4", 0 ) /* background tilemaps */ ROM_LOAD( "cz03.12d", 0x0000, 0x8000, CRC(6ce11971) SHA1(16bfa69b3ad02253e81c8110c9b840be03952790) ) ROM_REGION( 0x0400, "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, "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, "maincpu", 0 ) ROM_LOAD( "2", 0x4000, 0x4000, CRC(ea5e5a8f) SHA1(fa92bcb6b97c2966cd330b309eba73f9c059f14e) ) ROM_LOAD( "1", 0x8000, 0x8000, CRC(a7daae12) SHA1(a97f4bc05a3ec096d8c717bdf096f4b0e59dc2c2) ) ROM_REGION( 0x10000, "slave", 0 ) /* 64k for the sub cpu */ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) ) ROM_REGION( 0x04000, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */ ROM_REGION( 0x30000, "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, "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, "gfx4", 0 ) /* background tilemaps */ ROM_LOAD( "3", 0x0000, 0x8000, CRC(242e3e64) SHA1(4fa8e93ef055bfdbe3bd619c53bf2448e1b832f0) ) ROM_REGION( 0x0400, "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, "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, "maincpu", 0 ) ROM_LOAD( "wexpress.3", 0x4000, 0x4000, CRC(b4dd0fa4) SHA1(8d17eb28ae92486c67859871ea2bef8f50f39dbd) ) ROM_LOAD( "wexpress.1", 0x8000, 0x8000, CRC(e8466596) SHA1(dbbd3b84d0f017292595fc19f7412b984851221a) ) ROM_REGION( 0x10000, "slave", 0 ) /* 64k for the sub cpu */ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) ) ROM_REGION( 0x04000, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */ ROM_REGION( 0x30000, "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, "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, "gfx4", 0 ) /* background tilemaps */ ROM_LOAD( "3", 0x0000, 0x8000, CRC(242e3e64) SHA1(4fa8e93ef055bfdbe3bd619c53bf2448e1b832f0) ) ROM_REGION( 0x0400, "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, "maincpu", 0 ) ROM_LOAD( "s2", 0x4000, 0x4000, CRC(40d70fcb) SHA1(1327d39f872a39e020972952e5756ca59c55f9d0) ) ROM_LOAD( "s1", 0x8000, 0x8000, CRC(7c573824) SHA1(f5e4d4f0866c08c88d012a77e8aa2e74a779f986) ) ROM_REGION( 0x10000, "slave", 0 ) /* 64k for the sub cpu */ ROM_LOAD( "cz02", 0x8000, 0x8000, CRC(552e6112) SHA1(f8412a63cab0aa47321d602f69bf534426c6aa5d) ) ROM_REGION( 0x04000, "gfx1", ROMREGION_DISPOSE ) ROM_LOAD( "cz07", 0x00000, 0x4000, CRC(686bac23) SHA1(b6c96ed40e90a8ba32c2e78a65f9589d387b0254) ) /* characters */ ROM_REGION( 0x30000, "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, "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, "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, "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(running_machine *machine) { /* Expand the background rom so we can use regular decode routines */ UINT8 *gfx = memory_region(machine, "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(running_machine *machine) { UINT8 *rom = memory_region(machine, "maincpu"); 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(machine); exprraid_gfx_expand(machine); } static DRIVER_INIT( exprraid ) { UINT8 *rom = memory_region(machine, "maincpu"); /* 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(machine); exprraid_gfx_expand(machine); } static DRIVER_INIT( wexpresb ) { memory_install_read8_handler(cpu_get_address_space(machine->cpu[0], ADDRESS_SPACE_PROGRAM), 0x3800, 0x3800, 0, 0, vblank_r); exprraid_gfx_expand(machine); } static DRIVER_INIT( wexpresc ) { memory_install_read8_handler(cpu_get_address_space(machine->cpu[0], ADDRESS_SPACE_PROGRAM), 0xFFC0, 0xFFC0, 0, 0, vblank_r); exprraid_gfx_expand(machine); } GAME( 1986, exprraid, 0, exprraid, exprraid, exprraid, ROT0, "Data East USA", "Express Raider (US set 1)", 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 )