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Diffstat (limited to 'src/mame/drivers/crshrace.c')
-rw-r--r--src/mame/drivers/crshrace.c757
1 files changed, 757 insertions, 0 deletions
diff --git a/src/mame/drivers/crshrace.c b/src/mame/drivers/crshrace.c
new file mode 100644
index 00000000000..5879b2f3b48
--- /dev/null
+++ b/src/mame/drivers/crshrace.c
@@ -0,0 +1,757 @@
+/***************************************************************************
+
+Crash Race (c) 1993 Video System Co.
+
+driver by Nicola Salmoria
+
+Notes:
+- Keep player1 button1&2 pressed while entering service mode to get an
+ extended menu
+
+
+Stephh's notes (based on the games M68000 code and some tests) :
+
+0) all games
+
+ - There seems to be preliminary support for 3 simulataneous players, but the
+ game resets before the race starts if the 3 players don't play against each
+ other ! I can't tell however if it's an ingame or an emulation bug.
+ To test this, change CRSHRACE_3P_HACK to 1, set the "Reset on P.O.S.T. Error"
+ Dip Switch to "No" (because of the ROMS patch), and set the "Maximum Players"
+ Dip Switch to "3".
+
+ - There are 2 buttons for each player (one for accel and one for brake),
+ the 3rd one being for "debug" purpose (see notes below).
+ - The "Difficulty" Dip Switch also determines the time to complete the race.
+ - "Coin B" Dip Switches only has an effect if you set the "Coin Slot"
+ Dip Switch to "Same".
+ If you set it to "Individual", it will use the coinage from "Coin A".
+ - COIN3 adds 1 credit only if you set the "Coin Slot" Dip Switch to "Same".
+ If you set it to "Individual", it will add 1 credit to fake player 3,
+ thus having no effect.
+
+ - DSW 3 bit 0 used to be a "Max Players" Dip Switch (but it is now unused) :
+ * when Off, 2 players cabinet
+ * when On, 3 players cabinet
+
+ - DSW 3 bits 1 to 3 used to be a "Coin C" Dip Switch (but they are now unused)
+ which is in fact similar to the table for "Coin A" and "Coin B" :
+ 1 2 3 Coinage
+ Off Off Off 1C_1C
+ On Off Off 2C_1C
+ Off On Off 3C_1C
+ On On Off 1C_2C
+ Off Off On 1C_3C
+ On Off On 1C_4C
+ Off On On 1C_5C
+ On On On 1C_6C
+
+ - DSW 3 bit 7 is tested only if an error has occured during P.O.S.T. :
+ * when Off, the game is reset
+ * when On, don't bother with the error and continue
+
+ - There are NO differences between Country code 0x0004 ("World") and 0x0005.
+ Country code is stored at 0xfe1c9e and can have the following values :
+ * 0000 : Japan
+ * 0001 : USA & Canada
+ * 0002 : Korea
+ * 0003 : Hong Kong & Taiwan
+ * 0004 : World
+ * 0005 : ???
+
+ - When in the "test mode" with the extended menu, pressing "P1 button 3"
+ causes a "freeze"; press it again to unfreeze.
+ - When in the "test mode" with the extended menu, pressing "P2 button 3"
+ has an unknown effect (sound related ?), but sets bit 2 at 0xfe0019.
+
+ - There are writes to 0xfff00c and 0xfff00d, but these addresses aren't mapped :
+ * when "Flip Screen" Dip Switch is Off, 0x0001 is written to 0xfff00c.w
+ * when "Flip Screen" Dip Switch is Off, 0xc001 is written to 0xfff00c.w
+ I can't tell however what is the effect of these writes 8(
+
+
+1) 'crshrace'
+
+ - Even if there is code for it, there is NO possibility to select a 3 players
+ game due to code at 0x003778 which "invalidates" the previous reading of DSW 3 :
+
+ 00363C: 13F8 F00B 00FE 1C85 move.b $f00b.w, $fe1c85.l
+ ...
+ 003650: 4639 00FE 1C85 not.b $fe1c85.l
+ ...
+ 003778: 51F9 00FE 1C85 sf $fe1c85.l
+
+ - When in the "test mode" with the extended menu, pressing "P1 start" +
+ "P2 start" + the 3 buttons of the SAME player causes a reset of the game
+ (code at 0x003182).
+ - When in the "test play" menu of the "test mode", pressing "P1 button 1" +
+ "P1 button 2" + "P2 button 1" + "P2 button 2" + "P2 button 3" returns
+ to the "test mode" (code at 0x0040de).
+
+
+2) 'crshrac2'
+
+ - Even if there is code for it, there is NO possibility to select a 3 players
+ game due to code at 0x003796 which "invalidates" the previous reading of DSW 3 :
+
+ 00365A: 13F8 F00B 00FE 1C85 move.b $f00b.w, $fe1c85.l
+ ...
+ 00366E: 4639 00FE 1C85 not.b $fe1c85.l
+ ...
+ 003796: 51F9 00FE 1C85 sf $fe1c85.l
+
+ - When in the "test mode" with the extended menu, pressing "P1 start" +
+ "P2 start" + the 3 buttons of the SAME player causes a reset of the game
+ (code at 0x0031a0).
+ - When in the "test play" menu of the "test mode", pressing "P1 button 1" +
+ "P1 button 2" + "P2 button 1" + "P2 button 2" + "P2 button 3" returns
+ to the "test mode" (code at 0x0040fc).
+
+ - I can't determine the effect of DSW 1 bit 4 8( All I can tell is that code
+ at 0x00ea9c is called when initialising the race "parameters".
+
+
+TODO:
+- handle screen flip correctly
+- sprite lag - I think it needs sprites to be delayed TWO frames
+- is bg color in service mode right (blue)? Should it be black instead?
+- handling of layer priority & enable might not be correct, though it should be
+ enough to run this game.
+- unknown writes to fff044/fff046. They look like two more scroll registers,
+ but for what? The first starts at 0 when going over the start line and
+ increases during the race
+
+***************************************************************************/
+
+#include "driver.h"
+#include "video/konamiic.h"
+#include "sound/2610intf.h"
+#include "crshrace.h"
+
+
+#define CRSHRACE_3P_HACK 0
+
+
+static READ16_HANDLER( extrarom1_r )
+{
+ UINT8 *rom = memory_region(REGION_USER1);
+
+ offset *= 2;
+
+ return rom[offset] | (rom[offset+1] << 8);
+}
+
+static READ16_HANDLER( extrarom2_r )
+{
+ UINT8 *rom = memory_region(REGION_USER2);
+
+ offset *= 2;
+
+ return rom[offset] | (rom[offset+1] << 8);
+}
+
+static WRITE8_HANDLER( crshrace_sh_bankswitch_w )
+{
+ UINT8 *rom = memory_region(REGION_CPU2) + 0x10000;
+
+ memory_set_bankptr(1,rom + (data & 0x03) * 0x8000);
+}
+
+
+static int pending_command;
+
+static WRITE16_HANDLER( sound_command_w )
+{
+ if (ACCESSING_LSB)
+ {
+ pending_command = 1;
+ soundlatch_w(offset,data & 0xff);
+ cpunum_set_input_line(1, INPUT_LINE_NMI, PULSE_LINE);
+ }
+}
+
+static READ16_HANDLER( country_sndpending_r )
+{
+ return readinputport(5) | (pending_command ? 0x8000 : 0);
+}
+
+static WRITE8_HANDLER( pending_command_clear_w )
+{
+ pending_command = 0;
+}
+
+
+
+static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 16 )
+ AM_RANGE(0x000000, 0x07ffff) AM_READ(MRA16_ROM)
+ AM_RANGE(0x300000, 0x3fffff) AM_READ(extrarom1_r)
+ AM_RANGE(0x400000, 0x4fffff) AM_READ(extrarom2_r)
+ AM_RANGE(0x500000, 0x5fffff) AM_READ(extrarom2_r) /* mirror */
+ AM_RANGE(0xa00000, 0xa0ffff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xd00000, 0xd01fff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xe00000, 0xe01fff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xfe0000, 0xfeffff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xffd000, 0xffdfff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xffe000, 0xffefff) AM_READ(MRA16_RAM)
+ AM_RANGE(0xfff000, 0xfff001) AM_READ(input_port_0_word_r)
+ AM_RANGE(0xfff002, 0xfff003) AM_READ(input_port_1_word_r)
+ AM_RANGE(0xfff004, 0xfff005) AM_READ(input_port_2_word_r)
+ AM_RANGE(0xfff006, 0xfff007) AM_READ(country_sndpending_r)
+ AM_RANGE(0xfff00a, 0xfff00b) AM_READ(input_port_3_word_r)
+ AM_RANGE(0xfff00e, 0xfff00f) AM_READ(input_port_4_word_r)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 16 )
+ AM_RANGE(0x000000, 0x07ffff) AM_WRITE(MWA16_ROM)
+ AM_RANGE(0xa00000, 0xa0ffff) AM_WRITE(MWA16_RAM) AM_BASE(&spriteram16_2) AM_SIZE(&spriteram_2_size) // RAM-5
+ AM_RANGE(0xd00000, 0xd01fff) AM_WRITE(crshrace_videoram1_w) AM_BASE(&crshrace_videoram1) // RAM-3 H/L
+ AM_RANGE(0xe00000, 0xe01fff) AM_WRITE(MWA16_RAM) AM_BASE(&spriteram16) AM_SIZE(&spriteram_size) // RAM-6
+ AM_RANGE(0xffc000, 0xffc001) AM_WRITE(crshrace_roz_bank_w)
+ AM_RANGE(0xfe0000, 0xfeffff) AM_WRITE(MWA16_RAM) /* work RAM */ // RAM-1 H/L
+ AM_RANGE(0xffd000, 0xffdfff) AM_WRITE(crshrace_videoram2_w) AM_BASE(&crshrace_videoram2) // RAM-2 H/L
+ AM_RANGE(0xffe000, 0xffefff) AM_WRITE(paletteram16_xGGGGGBBBBBRRRRR_word_w) AM_BASE(&paletteram16) // RAM-4 H/L
+ AM_RANGE(0xfff000, 0xfff001) AM_WRITE(crshrace_gfxctrl_w)
+ AM_RANGE(0xfff008, 0xfff009) AM_WRITE(sound_command_w)
+ AM_RANGE(0xfff020, 0xfff03f) AM_WRITE(MWA16_RAM) AM_BASE(&K053936_0_ctrl)
+ AM_RANGE(0xfff044, 0xfff047) AM_WRITE(MWA16_RAM) // ??? moves during race
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_readmem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x77ff) AM_READ(MRA8_ROM)
+ AM_RANGE(0x7800, 0x7fff) AM_READ(MRA8_RAM)
+ AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_BANK1)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_writemem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x77ff) AM_WRITE(MWA8_ROM)
+ AM_RANGE(0x7800, 0x7fff) AM_WRITE(MWA8_RAM)
+ AM_RANGE(0x8000, 0xffff) AM_WRITE(MWA8_ROM)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_readport, ADDRESS_SPACE_IO, 8 )
+ ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
+ AM_RANGE(0x04, 0x04) AM_READ(soundlatch_r)
+ AM_RANGE(0x08, 0x08) AM_READ(YM2610_status_port_0_A_r)
+ AM_RANGE(0x0a, 0x0a) AM_READ(YM2610_status_port_0_B_r)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sound_writeport, ADDRESS_SPACE_IO, 8 )
+ ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
+ AM_RANGE(0x00, 0x00) AM_WRITE(crshrace_sh_bankswitch_w)
+ AM_RANGE(0x04, 0x04) AM_WRITE(pending_command_clear_w)
+ AM_RANGE(0x08, 0x08) AM_WRITE(YM2610_control_port_0_A_w)
+ AM_RANGE(0x09, 0x09) AM_WRITE(YM2610_data_port_0_A_w)
+ AM_RANGE(0x0a, 0x0a) AM_WRITE(YM2610_control_port_0_B_w)
+ AM_RANGE(0x0b, 0x0b) AM_WRITE(YM2610_data_port_0_B_w)
+ADDRESS_MAP_END
+
+
+
+static INPUT_PORTS_START( crshrace )
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) // "Accel"
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // "Brake"
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_COIN3 )
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_SERVICE2 ) // "Test"
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_TILT )
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_SERVICE1 )
+
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) // "Accel"
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) // "Brake"
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START
+ /* DSW1 : 0xfe1c83 = !(0xfff004) */
+ PORT_DIPNAME( 0x0100, 0x0100, "Coin Slot" )
+ PORT_DIPSETTING( 0x0100, "Same" )
+ PORT_DIPSETTING( 0x0000, "Individual" )
+ PORT_DIPNAME( 0x0e00, 0x0e00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x0a00, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x0c00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0e00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0800, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0600, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0200, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x7000, 0x7000, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0x5000, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x6000, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x7000, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x4000, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x3000, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x2000, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x1000, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x8000, 0x8000, "2 to Start, 1 to Cont." ) // Other desc. was too long !
+ PORT_DIPSETTING( 0x8000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ /* DSW2 : 0xfe1c84 = !(0xfff005) */
+ PORT_DIPNAME( 0x0001, 0x0001, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x0001, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Free_Play ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_SERVICE( 0x0008, IP_ACTIVE_LOW )
+ PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0010, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x00c0, 0x00c0, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x0080, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x00c0, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x0040, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) )
+
+ PORT_START
+ /* DSW3 : 0xfe1c85 = !(0xfff00b) */
+#if CRSHRACE_3P_HACK
+ PORT_DIPNAME( 0x0001, 0x0001, "Maximum Players" )
+ PORT_DIPSETTING( 0x0001, "2" )
+ PORT_DIPSETTING( 0x0000, "3" )
+ PORT_DIPNAME( 0x000e, 0x000e, "Coin C" )
+ PORT_DIPSETTING( 0x000a, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x000c, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x000e, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0008, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0006, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+#else
+ PORT_DIPNAME( 0x0001, 0x0001, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0001, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0008, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+#endif
+ PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0010, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0040, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0080, 0x0080, "Reset on P.O.S.T. Error" ) // Check code at 0x003812
+ PORT_DIPSETTING( 0x0000, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x0080, DEF_STR( Yes ) )
+
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START3 )
+
+ PORT_START
+ PORT_DIPNAME( 0x0f00, 0x0100, "Country" )
+ PORT_DIPSETTING( 0x0100, DEF_STR( World ) )
+ PORT_DIPSETTING( 0x0800, "USA & Canada" )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Japan ) )
+ PORT_DIPSETTING( 0x0200, "Korea" )
+ PORT_DIPSETTING( 0x0400, "Hong Kong & Taiwan" )
+/*
+ the following are all the same and seem to act like the World setting, possibly
+ with a slightly different attract sequence
+ PORT_DIPSETTING( 0x0300, "5" )
+ PORT_DIPSETTING( 0x0500, "5" )
+ PORT_DIPSETTING( 0x0600, "5" )
+ PORT_DIPSETTING( 0x0700, "5" )
+ PORT_DIPSETTING( 0x0900, "5" )
+ PORT_DIPSETTING( 0x0a00, "5" )
+ PORT_DIPSETTING( 0x0b00, "5" )
+ PORT_DIPSETTING( 0x0c00, "5" )
+ PORT_DIPSETTING( 0x0d00, "5" )
+ PORT_DIPSETTING( 0x0e00, "5" )
+ PORT_DIPSETTING( 0x0f00, "5" )
+*/
+ PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* pending sound command */
+INPUT_PORTS_END
+
+/* Same as 'crshrace', but additional "unknown" Dip Switch (see notes) */
+static INPUT_PORTS_START( crshrac2 )
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) // "Accel"
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // "Brake"
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_COIN3 )
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_SERVICE2 ) // "Test"
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_TILT )
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_SERVICE1 )
+
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) // "Accel"
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) // "Brake"
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START
+ /* DSW2 : 0xfe1c84 = !(0xfff005) */
+ PORT_DIPNAME( 0x0001, 0x0001, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x0001, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Free_Play ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_SERVICE( 0x0008, IP_ACTIVE_LOW )
+ PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unknown ) ) // Check code at 0x00ea36
+ PORT_DIPSETTING( 0x0010, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x00c0, 0x00c0, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x0080, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x00c0, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x0040, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) )
+ /* DSW1 : 0xfe1c83 = !(0xfff004) */
+ PORT_DIPNAME( 0x0100, 0x0100, "Coin Slot" )
+ PORT_DIPSETTING( 0x0100, "Same" )
+ PORT_DIPSETTING( 0x0000, "Individual" )
+ PORT_DIPNAME( 0x0e00, 0x0e00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x0a00, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x0c00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0e00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0800, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0600, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0200, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x7000, 0x7000, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0x5000, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x6000, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x7000, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x4000, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x3000, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x2000, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x1000, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x8000, 0x8000, "2 to Start, 1 to Cont." ) // Other desc. was too long !
+ PORT_DIPSETTING( 0x8000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+
+ PORT_START
+ /* DSW3 : 0xfe1c85 = !(0xfff00b) */
+#if CRSHRACE_3P_HACK
+ PORT_DIPNAME( 0x0001, 0x0001, "Maximum Players" )
+ PORT_DIPSETTING( 0x0001, "2" )
+ PORT_DIPSETTING( 0x0000, "3" )
+ PORT_DIPNAME( 0x000e, 0x000e, "Coin C" )
+ PORT_DIPSETTING( 0x000a, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x000c, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x000e, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0008, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0006, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( 1C_6C ) )
+#else
+ PORT_DIPNAME( 0x0001, 0x0001, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0001, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0002, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0004, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0008, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+#endif
+ PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0010, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0020, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unused ) )
+ PORT_DIPSETTING( 0x0040, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0080, 0x0080, "Reset on P.O.S.T. Error" ) // Check code at 0x003830
+ PORT_DIPSETTING( 0x0000, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x0080, DEF_STR( Yes ) )
+
+ PORT_START
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(3)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(3)
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START3 )
+
+ PORT_START
+ PORT_DIPNAME( 0x0f00, 0x0100, "Country" )
+ PORT_DIPSETTING( 0x0100, DEF_STR( World ) )
+ PORT_DIPSETTING( 0x0800, "USA & Canada" )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Japan ) )
+ PORT_DIPSETTING( 0x0200, "Korea" )
+ PORT_DIPSETTING( 0x0400, "Hong Kong & Taiwan" )
+/*
+ the following are all the same and seem to act like the World setting, possibly
+ with a slightly different attract sequence
+ PORT_DIPSETTING( 0x0300, "5" )
+ PORT_DIPSETTING( 0x0500, "5" )
+ PORT_DIPSETTING( 0x0600, "5" )
+ PORT_DIPSETTING( 0x0700, "5" )
+ PORT_DIPSETTING( 0x0900, "5" )
+ PORT_DIPSETTING( 0x0a00, "5" )
+ PORT_DIPSETTING( 0x0b00, "5" )
+ PORT_DIPSETTING( 0x0c00, "5" )
+ PORT_DIPSETTING( 0x0d00, "5" )
+ PORT_DIPSETTING( 0x0e00, "5" )
+ PORT_DIPSETTING( 0x0f00, "5" )
+*/
+ PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* pending sound command */
+INPUT_PORTS_END
+
+
+
+static const gfx_layout charlayout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 8,
+ { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
+ { 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64 },
+ 64*8
+};
+
+static const gfx_layout tilelayout =
+{
+ 16,16,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 1, 2, 3 },
+ { 2*4, 3*4, 0*4, 1*4, 6*4, 7*4, 4*4, 5*4,
+ 10*4, 11*4, 8*4, 9*4, 14*4, 15*4, 12*4, 13*4 },
+ { 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
+ 8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
+ 128*8
+};
+
+static const gfx_layout spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 1, 2, 3 },
+ { 1*4, 0*4, 3*4, 2*4, 5*4, 4*4, 7*4, 6*4,
+ 9*4, 8*4, 11*4, 10*4, 13*4, 12*4, 15*4, 14*4 },
+ { 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
+ 8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
+ 128*8
+};
+
+static GFXDECODE_START( crshrace )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout, 0, 1 )
+ GFXDECODE_ENTRY( REGION_GFX2, 0, tilelayout, 256, 16 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0, spritelayout, 512, 32 )
+GFXDECODE_END
+
+
+
+static void irqhandler(int irq)
+{
+ cpunum_set_input_line(1,0,irq ? ASSERT_LINE : CLEAR_LINE);
+}
+
+static struct YM2610interface ym2610_interface =
+{
+ irqhandler,
+ REGION_SOUND1,
+ REGION_SOUND2
+};
+
+
+
+static MACHINE_DRIVER_START( crshrace )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(M68000,16000000) /* 16 MHz ??? */
+ MDRV_CPU_PROGRAM_MAP(readmem,writemem)
+ MDRV_CPU_VBLANK_INT(irq1_line_hold,1)
+
+ MDRV_CPU_ADD(Z80,4000000) /* 4 MHz ??? */
+ /* audio CPU */
+ MDRV_CPU_PROGRAM_MAP(sound_readmem,sound_writemem)
+ MDRV_CPU_IO_MAP(sound_readport,sound_writeport)
+
+ MDRV_SCREEN_REFRESH_RATE(60)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER | VIDEO_BUFFERS_SPRITERAM)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_SIZE(64*8, 32*8)
+ MDRV_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 0*8, 28*8-1)
+ MDRV_GFXDECODE(crshrace)
+ MDRV_PALETTE_LENGTH(2048)
+
+ MDRV_VIDEO_START(crshrace)
+ MDRV_VIDEO_EOF(crshrace)
+ MDRV_VIDEO_UPDATE(crshrace)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_STEREO("left", "right")
+
+ MDRV_SOUND_ADD(YM2610, 8000000)
+ MDRV_SOUND_CONFIG(ym2610_interface)
+ MDRV_SOUND_ROUTE(0, "left", 0.25)
+ MDRV_SOUND_ROUTE(0, "right", 0.25)
+ MDRV_SOUND_ROUTE(1, "left", 1.0)
+ MDRV_SOUND_ROUTE(2, "right", 1.0)
+MACHINE_DRIVER_END
+
+
+ROM_START( crshrace )
+ ROM_REGION( 0x80000, REGION_CPU1, 0 ) /* 68000 code */
+ ROM_LOAD16_WORD_SWAP( "1", 0x000000, 0x80000, CRC(21e34fb7) SHA1(be47b4a9bce2d6ce0a127dffe032c61547b2a3c0) )
+
+ ROM_REGION( 0x100000, REGION_USER1, 0 ) /* extra ROM */
+ ROM_LOAD( "w21", 0x000000, 0x100000, CRC(a5df7325) SHA1(614095a086164af5b5e73245744411187d81deec) )
+
+ ROM_REGION( 0x100000, REGION_USER2, 0 ) /* extra ROM */
+ ROM_LOAD( "w22", 0x000000, 0x100000, CRC(fc9d666d) SHA1(45aafcce82b668f93e51b5e4d092b1d0077e5192) )
+
+ ROM_REGION( 0x30000, REGION_CPU2, 0 ) /* 64k for the audio CPU + banks */
+ ROM_LOAD( "2", 0x00000, 0x20000, CRC(e70a900f) SHA1(edfe5df2dab5a7dccebe1a6f978144bcd516ab03) )
+ ROM_RELOAD( 0x10000, 0x20000 )
+
+ ROM_REGION( 0x100000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "h895", 0x000000, 0x100000, CRC(36ad93c3) SHA1(f68f229dd1a1f8bfd3b8f73b6627f5f00f809d34) )
+
+ ROM_REGION( 0x400000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "w18", 0x000000, 0x100000, CRC(b15df90d) SHA1(56e38e6c40a02553b6b8c5282aa8f16b20779ebf) )
+ ROM_LOAD( "w19", 0x100000, 0x100000, CRC(28326b93) SHA1(997e9b250b984b012ce1d165add59c741fb18171) )
+ ROM_LOAD( "w20", 0x200000, 0x100000, CRC(d4056ad1) SHA1(4b45b14aa0766d7aef72f060e1cd28d67690d5fe) )
+ /* 300000-3fffff empty */
+
+ ROM_REGION( 0x400000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "h897", 0x000000, 0x200000, CRC(e3230128) SHA1(758c65f113481cf25bf0359deecd6736a7c9ee7e) )
+ ROM_LOAD( "h896", 0x200000, 0x200000, CRC(fff60233) SHA1(56b4b708883a80761dc5f9184780477d72b80351) )
+
+ ROM_REGION( 0x100000, REGION_SOUND1, 0 ) /* sound samples */
+ ROM_LOAD( "h894", 0x000000, 0x100000, CRC(d53300c1) SHA1(4c3ff7d3156791cb960c28845a5f1906605bce55) )
+
+ ROM_REGION( 0x100000, REGION_SOUND2, 0 ) /* sound samples */
+ ROM_LOAD( "h893", 0x000000, 0x100000, CRC(32513b63) SHA1(c4ede4aaa2611cedb53d47448422a1926acf3052) )
+ROM_END
+
+ROM_START( crshrac2 )
+ ROM_REGION( 0x80000, REGION_CPU1, 0 ) /* 68000 code */
+ ROM_LOAD16_WORD_SWAP( "01-ic10.bin", 0x000000, 0x80000, CRC(b284aacd) SHA1(f0ef279cdec30eb32e8aa8cdd51e289b70f2d6f5) )
+
+ ROM_REGION( 0x100000, REGION_USER1, 0 ) /* extra ROM */
+ ROM_LOAD( "w21", 0x000000, 0x100000, CRC(a5df7325) SHA1(614095a086164af5b5e73245744411187d81deec) ) // IC14.BIN
+
+ ROM_REGION( 0x100000, REGION_USER2, 0 ) /* extra ROM */
+ ROM_LOAD( "w22", 0x000000, 0x100000, CRC(fc9d666d) SHA1(45aafcce82b668f93e51b5e4d092b1d0077e5192) ) // IC13.BIN
+
+ ROM_REGION( 0x30000, REGION_CPU2, 0 ) /* 64k for the audio CPU + banks */
+ ROM_LOAD( "2", 0x00000, 0x20000, CRC(e70a900f) SHA1(edfe5df2dab5a7dccebe1a6f978144bcd516ab03) ) // 02-IC58.BIN
+ ROM_RELOAD( 0x10000, 0x20000 )
+
+ ROM_REGION( 0x100000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "h895", 0x000000, 0x100000, CRC(36ad93c3) SHA1(f68f229dd1a1f8bfd3b8f73b6627f5f00f809d34) ) // IC50.BIN
+
+ ROM_REGION( 0x400000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD( "w18", 0x000000, 0x100000, CRC(b15df90d) SHA1(56e38e6c40a02553b6b8c5282aa8f16b20779ebf) ) // ROM-A.BIN
+ ROM_LOAD( "w19", 0x100000, 0x100000, CRC(28326b93) SHA1(997e9b250b984b012ce1d165add59c741fb18171) ) // ROM-B.BIN
+ ROM_LOAD( "w20", 0x200000, 0x100000, CRC(d4056ad1) SHA1(4b45b14aa0766d7aef72f060e1cd28d67690d5fe) ) // ROM-C.BIN
+ /* 300000-3fffff empty */
+
+ ROM_REGION( 0x400000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD( "h897", 0x000000, 0x200000, CRC(e3230128) SHA1(758c65f113481cf25bf0359deecd6736a7c9ee7e) ) // IC29.BIN
+ ROM_LOAD( "h896", 0x200000, 0x200000, CRC(fff60233) SHA1(56b4b708883a80761dc5f9184780477d72b80351) ) // IC75.BIN
+
+ ROM_REGION( 0x100000, REGION_SOUND1, 0 ) /* sound samples */
+ ROM_LOAD( "h894", 0x000000, 0x100000, CRC(d53300c1) SHA1(4c3ff7d3156791cb960c28845a5f1906605bce55) ) // IC73.BIN
+
+ ROM_REGION( 0x100000, REGION_SOUND2, 0 ) /* sound samples */
+ ROM_LOAD( "h893", 0x000000, 0x100000, CRC(32513b63) SHA1(c4ede4aaa2611cedb53d47448422a1926acf3052) ) // IC69.BIN
+ROM_END
+
+
+#ifdef UNUSED_FUNCTION
+void crshrace_patch_code(UINT16 offset)
+{
+ /* A hack which shows 3 player mode in code which is disabled */
+ UINT16 *RAM = (UINT16 *)memory_region(REGION_CPU1);
+ RAM[(offset + 0)/2] = 0x4e71;
+ RAM[(offset + 2)/2] = 0x4e71;
+ RAM[(offset + 4)/2] = 0x4e71;
+}
+#endif
+
+
+static DRIVER_INIT( crshrace )
+{
+ #if CRSHRACE_3P_HACK
+ crshrace_patch_code(0x003778);
+ #endif
+}
+
+static DRIVER_INIT( crshrac2 )
+{
+ #if CRSHRACE_3P_HACK
+ crshrace_patch_code(0x003796);
+ #endif
+}
+
+
+GAME( 1993, crshrace, 0, crshrace, crshrace, crshrace, ROT270, "Video System Co.", "Lethal Crash Race (set 1)", GAME_NO_COCKTAIL )
+GAME( 1993, crshrac2, crshrace, crshrace, crshrac2, crshrac2, ROT270, "Video System Co.", "Lethal Crash Race (set 2)", GAME_NO_COCKTAIL )