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-rw-r--r--src/mame/drivers/groundfx.c523
1 files changed, 523 insertions, 0 deletions
diff --git a/src/mame/drivers/groundfx.c b/src/mame/drivers/groundfx.c
new file mode 100644
index 00000000000..5352ef84262
--- /dev/null
+++ b/src/mame/drivers/groundfx.c
@@ -0,0 +1,523 @@
+/***************************************************************************
+
+ Ground Effects / Super Ground FX (c) 1993 Taito
+
+ Driver by Bryan McPhail & David Graves.
+
+ Board Info:
+
+ K1100744A
+ J1100316A
+ Sticker - K11J0744A
+ ------------------------------------------------------------------------------------------------
+ | 2018 2088 43256 43256 MC68EC020RP25 DIP-SW (8) COM20020 SLIDE-SW LAN-IN | Connector G
+ | 2018 2088 D51-21 D51-22 D51-14 | -----------
+ | 2018 2088 43256 43256 (PAL16L8) | Parts | Solder
+ | D51-15 ADC0809 LAN-OUT | ------------------
+ | 2018 D51-23 D51-24 (PAL16L8) | GND 1 A GND
+ | D51-16-1 JP4 | GND 2 B GND
+ | 2018 TC0570SPC (PAL16L8) EEPROM.164 1-2 | +12 3 C +12
+ | 2018 2-3 | +5 4 D +5
+ | TC0510NIO 2-3 --| +5 5 E +5
+ | D51-13 D51-03 2-3 | +5 6 F +5
+ | D51-04 43256 1-2 | 7 H
+ | TC0470LIN D51-05 1-2 --| +13 8 J +13
+ | D51-06 43256 TC0650FCA 1-2 | +13 9 K +13
+ | D51-07 2-3 | SPK_R+ 10 L SPK_R-
+ | TC0580PIV 43256 43256 2018 2-3 | SPK_L+ 11 M SPK_L-
+ | 43256 D51-17 | SPK_REAR- 12 N SPK_REAR-
+ | 514256 TC0480SCP (PAL16L8) | 13 P
+ | 514256 G| RED 14 R GREEN
+ | 514256 D51-10 | BLUE 15 S SYNC
+ | 514256 D51-09 D51-11 TC0620SCC | V-GND 16 T
+ | 514256 D51-08 D51012 | METER1 17 U METER2
+ | 514256 43256 | LOCKOUT1 18 V LOCKOUT2
+ | MB8421 43256 | 19 W
+ | D51-18 MB8421 ENSONIC --| COIN1 20 X COIN2
+ | (PAL20L8) D51-29 OTISR2 43256 MB87078 | SERVICE 21 Y TEST
+ | D51-01 | 22 Z
+ | D51-19 43256 ENSONIC ENSONIC --| SHIFT UP 23 a BRAKE
+ | (PAL20L8) D51-02 SUPER GLU ESP-R6 TC511664 TL074 TL074 | HANDLE VR 24 b ACCEL VR
+ | D51-30 | SHIFT DN 25 c
+ | MC68000P12F16MHz TDA1543 TDA1543 | 26 d
+ | 40MHz 16MHz 30.476MHz MC68681 | GND 27 e GND
+ | D51-20 | GND 28 f GND
+ | (PAL20L8) |
+ ------------------------------------------------------------------------------------------------
+
+
+ Ground Effects combines the sprite system used in Taito Z games with
+ the TC0480SCP tilemap chip plus some features from the Taito F3 system.
+ It has an extra tilemap chip which is a dead ringer for the TC0100SCN
+ (check the inits), like Under Fire.
+
+ Ground Effects is effectively a 30Hz game - though the vblank interrupts
+ still come in at 60Hz, the game uses a hardware frame counter to limit
+ itself to 30Hz (it only updates things like the video registers every
+ other vblank). There isn't enough cpu power in a 16MHz 68020 to run
+ this game at 60Hz.
+
+ Ground Effects has a network mode - probably uses IRQ 6 and the unknown
+ ports at 0xc00000.
+
+***************************************************************************/
+
+#include "driver.h"
+#include "cpu/m68000/m68000.h"
+#include "video/taitoic.h"
+#include "machine/eeprom.h"
+#include "sound/es5506.h"
+#include "includes/taito_f3.h"
+#include "audio/taito_en.h"
+
+VIDEO_START( groundfx );
+VIDEO_UPDATE( groundfx );
+
+static UINT16 coin_word, frame_counter=0;
+static UINT16 port_sel = 0;
+extern UINT16 groundfx_rotate_ctrl[8];
+static UINT32 *groundfx_ram;
+
+/***********************************************************
+ COLOR RAM
+
+Extract a standard version of this
+("taito_8bpg_palette_word_w"?) to Taitoic.c ?
+***********************************************************/
+
+static WRITE32_HANDLER( color_ram_w )
+{
+ int a,r,g,b;
+ COMBINE_DATA(&paletteram32[offset]);
+
+ {
+ a = paletteram32[offset];
+ r = (a &0xff0000) >> 16;
+ g = (a &0xff00) >> 8;
+ b = (a &0xff);
+
+ palette_set_color(Machine,offset,MAKE_RGB(r,g,b));
+ }
+}
+
+
+/***********************************************************
+ INTERRUPTS
+***********************************************************/
+
+static TIMER_CALLBACK( groundfx_interrupt5 )
+{
+ cpunum_set_input_line(0,5,HOLD_LINE); //from 5... ADC port
+}
+
+
+/**********************************************************
+ EPROM
+**********************************************************/
+
+static UINT8 default_eeprom[128]=
+{
+ 0x02,0x01,0x11,0x12,0x01,0x01,0x01,0x00,0x80,0x80,0x30,0x01,0x00,0x00,0x62,0x45,
+ 0xe0,0xa0,0xff,0x28,0xff,0xff,0xfa,0xd7,0x33,0x28,0x00,0x00,0x33,0x28,0x00,0x00,
+ 0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0xa0,0xff,0x28,0xff,0xff,0xff,0xff,0xfa,0xd7,
+ 0x33,0x28,0x00,0x00,0x33,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
+};
+
+static struct EEPROM_interface groundfx_eeprom_interface =
+{
+ 6, /* address bits */
+ 16, /* data bits */
+ "0110", /* read command */
+ "0101", /* write command */
+ "0111", /* erase command */
+ "0100000000", /* unlock command */
+ "0100110000", /* lock command */
+};
+
+static NVRAM_HANDLER( groundfx )
+{
+ if (read_or_write)
+ EEPROM_save(file);
+ else {
+ EEPROM_init(&groundfx_eeprom_interface);
+ if (file)
+ EEPROM_load(file);
+ else
+ EEPROM_set_data(default_eeprom,128); /* Default the gun setup values */
+ }
+}
+
+
+/**********************************************************
+ GAME INPUTS
+**********************************************************/
+
+
+static READ32_HANDLER( groundfx_input_r )
+{
+ switch (offset)
+ {
+ case 0x00:
+ {
+ return (input_port_0_word_r(0,0) << 16) | input_port_1_word_r(0,0) |
+ (EEPROM_read_bit() << 7) | frame_counter;
+ }
+
+ case 0x01:
+ {
+ return input_port_2_word_r(0,0) | (coin_word << 16);
+ }
+ }
+
+ return 0xffffffff;
+}
+
+static WRITE32_HANDLER( groundfx_input_w )
+{
+ switch (offset)
+ {
+ case 0x00:
+ {
+ if (ACCESSING_MSB32) /* $500000 is watchdog */
+ {
+ watchdog_reset_w(0,data >> 24);
+ }
+
+ if (ACCESSING_LSB32)
+ {
+ EEPROM_set_clock_line((data & 0x20) ? ASSERT_LINE : CLEAR_LINE);
+ EEPROM_write_bit(data & 0x40);
+ EEPROM_set_cs_line((data & 0x10) ? CLEAR_LINE : ASSERT_LINE);
+ return;
+ }
+
+ return;
+ }
+
+ case 0x01:
+ {
+ if (ACCESSING_MSB32)
+ {
+ coin_lockout_w(0,~data & 0x01000000);
+ coin_lockout_w(1,~data & 0x02000000);
+ coin_counter_w(0, data & 0x04000000);
+ coin_counter_w(1, data & 0x08000000);
+ coin_word = (data >> 16) &0xffff;
+ }
+ }
+ }
+}
+
+static READ32_HANDLER( groundfx_adc_r )
+{
+ return (input_port_3_word_r(0,0) << 8) | input_port_4_word_r(0,0);
+}
+
+static WRITE32_HANDLER( groundfx_adc_w )
+{
+ /* One interrupt per input port (4 per frame, though only 2 used).
+ 1000 cycle delay is arbitrary */
+ timer_set(ATTOTIME_IN_CYCLES(1000,0),0, groundfx_interrupt5);
+}
+
+static WRITE32_HANDLER( rotate_control_w ) /* only a guess that it's rotation */
+{
+ if (ACCESSING_LSW32)
+ {
+ groundfx_rotate_ctrl[port_sel] = data;
+ return;
+ }
+
+ if (ACCESSING_MSW32)
+ {
+ port_sel = (data &0x70000) >> 16;
+ }
+}
+
+
+static WRITE32_HANDLER( motor_control_w )
+{
+/*
+ Standard value poked is 0x00910200 (we ignore lsb and msb
+ which seem to be always zero)
+
+ 0x0, 0x8000 and 0x9100 are written at startup
+
+ Two bits are written in test mode to this middle word
+ to test gun vibration:
+
+ ........ .x...... P1 gun vibration
+ ........ x....... P2 gun vibration
+*/
+}
+
+/***********************************************************
+ MEMORY STRUCTURES
+***********************************************************/
+
+static ADDRESS_MAP_START( groundfx_readmem, ADDRESS_SPACE_PROGRAM, 32 )
+ AM_RANGE(0x000000, 0x1fffff) AM_READ(MRA32_ROM)
+ AM_RANGE(0x200000, 0x21ffff) AM_READ(MRA32_RAM) /* main CPUA ram */
+ AM_RANGE(0x300000, 0x303fff) AM_READ(MRA32_RAM) /* sprite ram */
+ AM_RANGE(0x500000, 0x500007) AM_READ(groundfx_input_r)
+ AM_RANGE(0x600000, 0x600003) AM_READ(groundfx_adc_r)
+ AM_RANGE(0x700000, 0x7007ff) AM_READ(MRA32_RAM)
+ AM_RANGE(0x800000, 0x80ffff) AM_READ(TC0480SCP_long_r) /* tilemaps */
+ AM_RANGE(0x830000, 0x83002f) AM_READ(TC0480SCP_ctrl_long_r) // debugging
+ AM_RANGE(0x900000, 0x90ffff) AM_READ(TC0100SCN_long_r) /* piv tilemaps */
+ AM_RANGE(0x920000, 0x92000f) AM_READ(TC0100SCN_ctrl_long_r)
+ AM_RANGE(0xa00000, 0xa0ffff) AM_READ(MRA32_RAM) /* palette ram */
+ AM_RANGE(0xb00000, 0xb003ff) AM_READ(MRA32_RAM) // ?? single bytes
+ AM_RANGE(0xc00000, 0xc00007) AM_READ(MRA32_NOP) /* Network? */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( groundfx_writemem, ADDRESS_SPACE_PROGRAM, 32 )
+ AM_RANGE(0x000000, 0x1fffff) AM_WRITE(MWA32_ROM)
+ AM_RANGE(0x200000, 0x21ffff) AM_WRITE(MWA32_RAM) AM_BASE(&groundfx_ram)
+ AM_RANGE(0x300000, 0x303fff) AM_WRITE(MWA32_RAM) AM_BASE(&spriteram32) AM_SIZE(&spriteram_size)
+ AM_RANGE(0x400000, 0x400003) AM_WRITE(motor_control_w) /* gun vibration */
+ AM_RANGE(0x500000, 0x500007) AM_WRITE(groundfx_input_w) /* eerom etc. */
+ AM_RANGE(0x600000, 0x600003) AM_WRITE(groundfx_adc_w)
+ AM_RANGE(0x700000, 0x7007ff) AM_WRITE(MWA32_RAM) AM_BASE(&f3_shared_ram)
+ AM_RANGE(0x800000, 0x80ffff) AM_WRITE(TC0480SCP_long_w) /* tilemaps */
+ AM_RANGE(0x830000, 0x83002f) AM_WRITE(TC0480SCP_ctrl_long_w)
+ AM_RANGE(0x900000, 0x90ffff) AM_WRITE(TC0100SCN_long_w) /* piv tilemaps */
+ AM_RANGE(0x920000, 0x92000f) AM_WRITE(TC0100SCN_ctrl_long_w)
+ AM_RANGE(0xa00000, 0xa0ffff) AM_WRITE(color_ram_w) AM_BASE(&paletteram32)
+ AM_RANGE(0xb00000, 0xb003ff) AM_WRITE(MWA32_RAM) // single bytes, blending ??
+ AM_RANGE(0xd00000, 0xd00003) AM_WRITE(rotate_control_w) /* perhaps port based rotate control? */
+ /* f00000 is seat control? */
+ADDRESS_MAP_END
+
+/***********************************************************
+ INPUT PORTS (dips in eprom)
+***********************************************************/
+
+static INPUT_PORTS_START( groundfx )
+ PORT_START /* IN0 */
+ PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* IN1 */
+ PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* Frame counter */
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* reserved for EEROM */
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON3 ) /* shift hi */
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* brake */
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON2 ) /* shift low */
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* IN2 */
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME( DEF_STR( Service_Mode )) PORT_CODE(KEYCODE_F2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SERVICE1 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* IN 2, steering wheel */
+ PORT_BIT( 0xff, 0x7f, IPT_AD_STICK_X ) PORT_SENSITIVITY(25) PORT_KEYDELTA(15) PORT_REVERSE PORT_PLAYER(1)
+
+ PORT_START /* IN 3, accel */
+ PORT_BIT( 0xff, 0xff, IPT_AD_STICK_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_PLAYER(1)
+
+ PORT_START /* IN 4, sound volume */
+ PORT_BIT( 0xff, 0x00, IPT_AD_STICK_X ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(2)
+
+ PORT_START /* IN 5, unknown */
+ PORT_BIT( 0xff, 0x00, IPT_AD_STICK_Y ) PORT_SENSITIVITY(20) PORT_KEYDELTA(10) PORT_PLAYER(2)
+INPUT_PORTS_END
+
+/**********************************************************
+ GFX DECODING
+**********************************************************/
+
+static const gfx_layout tile16x16_layout =
+{
+ 16,16, /* 16*16 sprites */
+ RGN_FRAC(1,2),
+ 5, /* 5 bits per pixel */
+ { RGN_FRAC(1,2), 0, 8, 16, 24 },
+ { 32, 33, 34, 35, 36, 37, 38, 39, 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 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 },
+ 64*16 /* every sprite takes 128 consecutive bytes */
+};
+
+static const gfx_layout charlayout =
+{
+ 16,16, /* 16*16 characters */
+ RGN_FRAC(1,1),
+ 4, /* 4 bits per pixel */
+ { 0, 1, 2, 3 },
+ { 1*4, 0*4, 5*4, 4*4, 3*4, 2*4, 7*4, 6*4, 9*4, 8*4, 13*4, 12*4, 11*4, 10*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 /* every sprite takes 128 consecutive bytes */
+};
+
+static const gfx_layout pivlayout =
+{
+ 8,8, /* 8*8 characters */
+ RGN_FRAC(1,2),
+ 6, /* 4 bits per pixel */
+ { RGN_FRAC(1,2), RGN_FRAC(1,2)+1, 0, 1, 2, 3 },
+ { 2*4, 3*4, 0*4, 1*4, 6*4, 7*4, 4*4, 5*4 },
+ { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
+ 32*8 /* every sprite takes 32 consecutive bytes */
+};
+
+static GFXDECODE_START( groundfx )
+ GFXDECODE_ENTRY( REGION_GFX2, 0x0, tile16x16_layout, 4096, 512 )
+ GFXDECODE_ENTRY( REGION_GFX1, 0x0, charlayout, 0, 512 )
+ GFXDECODE_ENTRY( REGION_GFX3, 0x0, pivlayout, 0, 512 )
+GFXDECODE_END
+
+
+/***********************************************************
+ MACHINE DRIVERS
+***********************************************************/
+
+static MACHINE_RESET( groundfx )
+{
+ taito_f3_soundsystem_reset();
+ f3_68681_reset();
+}
+
+static INTERRUPT_GEN( groundfx_interrupt )
+{
+ frame_counter^=1;
+ cpunum_set_input_line(0, 4, HOLD_LINE);
+}
+
+static MACHINE_DRIVER_START( groundfx )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(M68EC020, 16000000) /* 16 MHz */
+ MDRV_CPU_PROGRAM_MAP(groundfx_readmem,groundfx_writemem)
+ MDRV_CPU_VBLANK_INT(groundfx_interrupt,1)
+
+ TAITO_F3_SOUND_SYSTEM_CPU(16000000)
+
+ MDRV_SCREEN_REFRESH_RATE(60)
+ MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)
+
+ MDRV_MACHINE_RESET(groundfx)
+ MDRV_NVRAM_HANDLER(groundfx)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_SIZE(40*8, 32*8)
+ MDRV_SCREEN_VISIBLE_AREA(0, 40*8-1, 3*8, 32*8-1)
+ MDRV_GFXDECODE(groundfx)
+ MDRV_PALETTE_LENGTH(16384)
+
+ MDRV_VIDEO_START(groundfx)
+ MDRV_VIDEO_UPDATE(groundfx)
+
+ /* sound hardware */
+ TAITO_F3_SOUND_SYSTEM_ES5505(30476100/2)
+MACHINE_DRIVER_END
+
+/***************************************************************************
+ DRIVERS
+***************************************************************************/
+
+ROM_START( groundfx )
+ ROM_REGION( 0x200000, REGION_CPU1, 0 ) /* 2048K for 68020 code (CPU A) */
+ ROM_LOAD32_BYTE( "d51-24.79", 0x00000, 0x80000, CRC(5caaa031) SHA1(03e727e26df701e3f5e16c5f933d5b29a528945a) )
+ ROM_LOAD32_BYTE( "d51-23.61", 0x00001, 0x80000, CRC(462e3c9b) SHA1(7f116ee755748497b911868a948d3e3b5134e475) )
+ ROM_LOAD32_BYTE( "d51-22.77", 0x00002, 0x80000, CRC(b6b04d88) SHA1(58685ee8fd788dcbfe318f1e3c06d93e2128034c) )
+ ROM_LOAD32_BYTE( "d51-21.59", 0x00003, 0x80000, CRC(21ecde2b) SHA1(c6d3738f34c8e24346e7784b14aeff300ae2d225) )
+
+ ROM_REGION( 0x180000, REGION_CPU2, 0 )
+ ROM_LOAD16_BYTE( "d51-29.54", 0x100000, 0x40000, CRC(4b64f41d) SHA1(040427668d13f7320d23805098d6d0e1aa8d121e) )
+ ROM_LOAD16_BYTE( "d51-30.56", 0x100001, 0x40000, CRC(45f339fe) SHA1(cc7adfb2b86070f5bb426542e3b7ed2a50b3c39e) )
+
+ ROM_REGION( 0x400000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD16_BYTE( "d51-08.35", 0x000000, 0x200000, CRC(835b7a0f) SHA1(0131fceabd73b0045b5d4ae0bb2f03efdd407962) ) /* SCR 16x16 tiles */
+ ROM_LOAD16_BYTE( "d51-09.34", 0x000001, 0x200000, CRC(6dabd83d) SHA1(3dbd7ea36b9900faa6420af1f1600efe295db74c) )
+
+ ROM_REGION( 0x1000000, REGION_GFX2, ROMREGION_DISPOSE )
+ ROM_LOAD32_BYTE( "d51-03.47", 0x800000, 0x200000, CRC(629a5c99) SHA1(cfc1c0b07ecefd6eddb83edcbcf710e8b8de19e4) ) /* OBJ 16x16 tiles */
+ ROM_LOAD32_BYTE( "d51-04.48", 0x000000, 0x200000, CRC(f49b14b7) SHA1(31129771159c1295a074c8311344ece525302289) )
+ ROM_LOAD32_BYTE( "d51-05.49", 0x000001, 0x200000, CRC(3a2e2cbf) SHA1(ed2c1ca9211b1d70b4767a54e08263a3e4867199) )
+ ROM_LOAD32_BYTE( "d51-06.50", 0x000002, 0x200000, CRC(d33ce2a0) SHA1(92c4504344672ea798cd6dd34f4b46848bf9f82b) )
+ ROM_LOAD32_BYTE( "d51-07.51", 0x000003, 0x200000, CRC(24b2f97d) SHA1(6980e67b435d189ce897c0301e0411763410ab47) )
+
+ ROM_REGION( 0x400000, REGION_GFX3, ROMREGION_DISPOSE )
+ ROM_LOAD16_BYTE( "d51-10.95", 0x000000, 0x100000, CRC(d5910604) SHA1(8efe13884cfdef208394ddfe19f43eb1b9f78ff3) ) /* PIV 8x8 tiles, 6bpp */
+ ROM_LOAD16_BYTE( "d51-11.96", 0x000001, 0x100000, CRC(fee5f5c6) SHA1(1be88747f9c71c348dd61a8f0040007df3a3e6a6) )
+ ROM_LOAD ( "d51-12.97", 0x300000, 0x100000, CRC(d630287b) SHA1(2fa09e1821b7280d193ca9a2a270759c3c3189d1) )
+ ROM_FILL ( 0x200000, 0x100000, 0 )
+
+ ROM_REGION16_LE( 0x80000, REGION_USER1, 0 )
+ ROM_LOAD16_WORD( "d51-13.7", 0x00000, 0x80000, CRC(36921b8b) SHA1(2130120f78a3b984618a53054fc937cf727177b9) ) /* STY, spritemap */
+
+ ROM_REGION16_BE( 0x1000000, REGION_SOUND1, ROMREGION_ERASE00 )
+ ROM_LOAD16_BYTE( "d51-01.73", 0x000000, 0x200000, CRC(92f09155) SHA1(8015e1997818bb480174394eb43840bf26679bcf) ) /* Ensoniq samples */
+ ROM_LOAD16_BYTE( "d51-02.74", 0xc00000, 0x200000, CRC(20a9428f) SHA1(c9033d02a49c72f704808f5f899101617d5814e5) )
+ROM_END
+
+
+static READ32_HANDLER( irq_speedup_r_groundfx )
+{
+ int ptr;
+ if ((activecpu_get_sp()&2)==0) ptr=groundfx_ram[(activecpu_get_sp()&0x1ffff)/4];
+ else ptr=(((groundfx_ram[(activecpu_get_sp()&0x1ffff)/4])&0x1ffff)<<16) |
+ (groundfx_ram[((activecpu_get_sp()&0x1ffff)/4)+1]>>16);
+
+ if (activecpu_get_pc()==0x1ece && ptr==0x1b9a)
+ cpu_spinuntil_int();
+
+ return groundfx_ram[0xb574/4];
+}
+
+
+static DRIVER_INIT( groundfx )
+{
+ UINT32 offset,i;
+ UINT8 *gfx = memory_region(REGION_GFX3);
+ int size=memory_region_length(REGION_GFX3);
+ int data;
+
+ /* Speedup handlers */
+ memory_install_read32_handler(0, ADDRESS_SPACE_PROGRAM, 0x20b574, 0x20b577, 0, 0, irq_speedup_r_groundfx);
+
+ /* make piv tile GFX format suitable for gfxdecode */
+ offset = size/2;
+ for (i = size/2+size/4; i<size; i++)
+ {
+ int d1,d2,d3,d4;
+
+ /* Expand 2bits into 4bits format */
+ data = gfx[i];
+ d1 = (data>>0) & 3;
+ d2 = (data>>2) & 3;
+ d3 = (data>>4) & 3;
+ d4 = (data>>6) & 3;
+
+ gfx[offset] = (d1<<2) | (d2<<6);
+ offset++;
+
+ gfx[offset] = (d3<<2) | (d4<<6);
+ offset++;
+ }
+}
+
+
+GAME( 1992, groundfx, 0, groundfx, groundfx, groundfx, ROT0, "Taito Corporation", "Ground Effects / Super Ground Effects (Japan)", 0 )