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Diffstat (limited to 'trunk/src/mame/drivers/sandscrp.c')
-rw-r--r--trunk/src/mame/drivers/sandscrp.c583
1 files changed, 583 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/sandscrp.c b/trunk/src/mame/drivers/sandscrp.c
new file mode 100644
index 00000000000..f0a66038762
--- /dev/null
+++ b/trunk/src/mame/drivers/sandscrp.c
@@ -0,0 +1,583 @@
+/*
+
+ Sand Scorpion
+
+(C) 1992 FACE
+
+PCB Number: Z03VA-001
+
+ CPU: TMP68HC000N-12
+Sound CPU: Z8400AB1 (Z80A)
+ Sound: OKI6295, YM2203C & Y3014B
+ OSC: 16.000mhz & 12.000mhz
+ Dips: Two 8-way dipswitch banks
+
+Kaneko custom (surfaced scratched):
+ PX79C480FP-3 PANDORA-CHIP (160pin PQFP) <- Sprites
+ VIEW2-CHIP (144pin PQFP) <- Tilemaps
+ HELP1-CHIP (64pin PQFP)
+ CALC1-CHIP (40pin DIP) <- Collision Detection etc.
+
+
++-------------------------------------+
+| VOL M6295 7.IC55 Z80A HELP1 |
+| Y3014B YM2203C 8.IC51 |
+| DSW1 DSW2 LH5168D 4.IC32|
+| 12MHz 16MHz LH5168D 3.IC33|
+|J LH5168D IC30*|
+|A VIEW2 IC31*|
+|M LH5116D M51257AL |
+|M LH5116D PAL M51257AL |
+|A 2.IC5|
+| PAL 1.IC4|
+| IC15* PANDORA 68000|
+| IC14* 5.IC16 M41464 M41464 CALC1|
+| IC18* 6.IC17 M41464 M41464 |
++-------------------------------------+
+
+IC18 unpopulated 28 pin socket (silkscreened EPROM)
+IC14 & IC15 unpopulated 32 pin socket (silkscreened MASK)
+IC30 & IC31 unpopulated 42 pin socket (silkscreened MASK)
+
+RAM:
+ OKI M41464C-10 (x4)
+ OKI M51257AL-10 (x2)
+ Sharp LH5116D-10 (x2)
+ Sharp LH5168D-10L (x3)
+
+PALS:
+ AMI 18CV8PC-25 (Stamped IC25D located at IC25)
+ AMI 18CV8PC-25 (Stamped IC26 located at IC26)
+
+Chips simply labeled 1 through 8
+
+ROM ID ROM Type
+===================
+1.ic4 27C2001
+2.ic5 27C2001
+3.ic33 27C040
+4.ic32 27C040
+5.ic16 27C040
+6.ic17 27C040
+7.ic55 27C2001
+8.ic51 27C1001
+
+Alternate Program roms:
+11.ic4 27C2001
+12.ic5 27C2001
+
+Is there another alt program rom set labeled 9 & 10?
+
+*/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/m68000/m68000.h"
+#include "includes/kaneko16.h"
+#include "sound/2203intf.h"
+#include "sound/2151intf.h"
+#include "sound/okim6295.h"
+#include "video/kan_pand.h"
+
+
+class sandscrp_state : public kaneko16_state
+{
+public:
+ sandscrp_state(const machine_config &mconfig, device_type type, const char *tag)
+ : kaneko16_state(mconfig, type, tag) { }
+
+ UINT8 m_sprite_irq;
+ UINT8 m_unknown_irq;
+ UINT8 m_vblank_irq;
+ UINT8 m_latch1_full;
+ UINT8 m_latch2_full;
+};
+
+
+static MACHINE_RESET( sandscrp )
+{
+ sandscrp_state *state = machine.driver_data<sandscrp_state>();
+ state->m_sprite_type = 0;
+
+ state->m_sprite_xoffs = 0;
+ state->m_sprite_yoffs = 0;
+
+ state->m_priority.sprite[0] = 1; // above tile[0], below the others
+ state->m_priority.sprite[1] = 2; // above tile[0-1], below the others
+ state->m_priority.sprite[2] = 3; // above tile[0-2], below the others
+ state->m_priority.sprite[3] = 8; // above all
+ state->m_sprite_type = 3; // "different" sprites layout
+}
+
+/* Sand Scorpion */
+
+
+
+/* Update the IRQ state based on all possible causes */
+static void update_irq_state(running_machine &machine)
+{
+ sandscrp_state *state = machine.driver_data<sandscrp_state>();
+ if (state->m_vblank_irq || state->m_sprite_irq || state->m_unknown_irq)
+ cputag_set_input_line(machine, "maincpu", 1, ASSERT_LINE);
+ else
+ cputag_set_input_line(machine, "maincpu", 1, CLEAR_LINE);
+}
+
+
+
+/* Called once/frame to generate the VBLANK interrupt */
+static INTERRUPT_GEN( sandscrp_interrupt )
+{
+ sandscrp_state *state = device->machine().driver_data<sandscrp_state>();
+ state->m_vblank_irq = 1;
+ update_irq_state(device->machine());
+}
+
+
+static SCREEN_EOF( sandscrp )
+{
+ sandscrp_state *state = machine.driver_data<sandscrp_state>();
+ device_t *pandora = machine.device("pandora");
+ state->m_sprite_irq = 1;
+ update_irq_state(machine);
+ pandora_eof(pandora);
+}
+
+/* Reads the cause of the interrupt */
+static READ16_HANDLER( sandscrp_irq_cause_r )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ return ( state->m_sprite_irq ? 0x08 : 0 ) |
+ ( state->m_unknown_irq ? 0x10 : 0 ) |
+ ( state->m_vblank_irq ? 0x20 : 0 ) ;
+}
+
+
+/* Clear the cause of the interrupt */
+static WRITE16_HANDLER( sandscrp_irq_cause_w )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ if (ACCESSING_BITS_0_7)
+ {
+ state->m_sprite_flipx = data & 1;
+ state->m_sprite_flipy = data & 1;
+
+ if (data & 0x08) state->m_sprite_irq = 0;
+ if (data & 0x10) state->m_unknown_irq = 0;
+ if (data & 0x20) state->m_vblank_irq = 0;
+ }
+
+ update_irq_state(space->machine());
+}
+
+
+
+/***************************************************************************
+ Sand Scorpion
+***************************************************************************/
+
+static WRITE16_HANDLER( sandscrp_coin_counter_w )
+{
+ if (ACCESSING_BITS_0_7)
+ {
+ coin_counter_w(space->machine(), 0, data & 0x0001);
+ coin_counter_w(space->machine(), 1, data & 0x0002);
+ }
+}
+
+
+static READ16_HANDLER( sandscrp_latchstatus_word_r )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ return (state->m_latch1_full ? 0x80 : 0) |
+ (state->m_latch2_full ? 0x40 : 0) ;
+}
+
+static WRITE16_HANDLER( sandscrp_latchstatus_word_w )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ if (ACCESSING_BITS_0_7)
+ {
+ state->m_latch1_full = data & 0x80;
+ state->m_latch2_full = data & 0x40;
+ }
+}
+
+static READ16_HANDLER( sandscrp_soundlatch_word_r )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ state->m_latch2_full = 0;
+ return soundlatch2_r(space,0);
+}
+
+static WRITE16_HANDLER( sandscrp_soundlatch_word_w )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ if (ACCESSING_BITS_0_7)
+ {
+ state->m_latch1_full = 1;
+ soundlatch_w(space, 0, data & 0xff);
+ cputag_set_input_line(space->machine(), "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
+ device_spin_until_time(&space->device(), attotime::from_usec(100)); // Allow the other cpu to reply
+ }
+}
+
+static ADDRESS_MAP_START( sandscrp, AS_PROGRAM, 16 )
+ AM_RANGE(0x000000, 0x07ffff) AM_ROM // ROM
+ AM_RANGE(0x100000, 0x100001) AM_WRITE(sandscrp_irq_cause_w) // IRQ Ack
+
+ AM_RANGE(0x700000, 0x70ffff) AM_RAM // RAM
+ AM_RANGE(0x200000, 0x20001f) AM_READWRITE(galpanib_calc_r,galpanib_calc_w) // Protection
+ AM_RANGE(0x300000, 0x30000f) AM_RAM_WRITE(kaneko16_layers_0_regs_w) AM_BASE_MEMBER(sandscrp_state, m_layers_0_regs) // Layers 0 Regs
+ AM_RANGE(0x400000, 0x400fff) AM_RAM_WRITE(kaneko16_vram_1_w) AM_BASE_MEMBER(sandscrp_state, m_vram[1]) // Layers 0
+ AM_RANGE(0x401000, 0x401fff) AM_RAM_WRITE(kaneko16_vram_0_w) AM_BASE_MEMBER(sandscrp_state, m_vram[0]) //
+ AM_RANGE(0x402000, 0x402fff) AM_RAM AM_BASE_MEMBER(sandscrp_state, m_vscroll[1]) //
+ AM_RANGE(0x403000, 0x403fff) AM_RAM AM_BASE_MEMBER(sandscrp_state, m_vscroll[0]) //
+ AM_RANGE(0x500000, 0x501fff) AM_DEVREADWRITE("pandora", pandora_spriteram_LSB_r, pandora_spriteram_LSB_w ) // sprites
+ AM_RANGE(0x600000, 0x600fff) AM_RAM_WRITE(paletteram16_xGGGGGRRRRRBBBBB_word_w) AM_BASE_GENERIC(paletteram) // Palette
+ AM_RANGE(0xa00000, 0xa00001) AM_WRITE(sandscrp_coin_counter_w) // Coin Counters (Lockout unused)
+ AM_RANGE(0xb00000, 0xb00001) AM_READ_PORT("P1")
+ AM_RANGE(0xb00002, 0xb00003) AM_READ_PORT("P2")
+ AM_RANGE(0xb00004, 0xb00005) AM_READ_PORT("SYSTEM")
+ AM_RANGE(0xb00006, 0xb00007) AM_READ_PORT("UNK")
+ AM_RANGE(0xec0000, 0xec0001) AM_READ(watchdog_reset16_r) //
+ AM_RANGE(0x800000, 0x800001) AM_READ(sandscrp_irq_cause_r) // IRQ Cause
+ AM_RANGE(0xe00000, 0xe00001) AM_READWRITE(sandscrp_soundlatch_word_r, sandscrp_soundlatch_word_w) // From/To Sound CPU
+ AM_RANGE(0xe40000, 0xe40001) AM_READWRITE(sandscrp_latchstatus_word_r, sandscrp_latchstatus_word_w) //
+ADDRESS_MAP_END
+
+
+
+/***************************************************************************
+ Sand Scorpion
+***************************************************************************/
+
+static WRITE8_HANDLER( sandscrp_bankswitch_w )
+{
+ UINT8 *RAM = space->machine().region("maincpu")->base();
+ int bank = data & 0x07;
+
+ if ( bank != data ) logerror("CPU #1 - PC %04X: Bank %02X\n",cpu_get_pc(&space->device()),data);
+
+ if (bank < 3) RAM = &RAM[0x4000 * bank];
+ else RAM = &RAM[0x4000 * (bank-3) + 0x10000];
+
+ memory_set_bankptr(space->machine(), "bank1", RAM);
+}
+
+static READ8_HANDLER( sandscrp_latchstatus_r )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ return (state->m_latch2_full ? 0x80 : 0) | // swapped!?
+ (state->m_latch1_full ? 0x40 : 0) ;
+}
+
+static READ8_HANDLER( sandscrp_soundlatch_r )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ state->m_latch1_full = 0;
+ return soundlatch_r(space,0);
+}
+
+static WRITE8_HANDLER( sandscrp_soundlatch_w )
+{
+ sandscrp_state *state = space->machine().driver_data<sandscrp_state>();
+ state->m_latch2_full = 1;
+ soundlatch2_w(space,0,data);
+}
+
+static ADDRESS_MAP_START( sandscrp_soundmem, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_ROM // ROM
+ AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1") // Banked ROM
+ AM_RANGE(0xc000, 0xdfff) AM_RAM // RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( sandscrp_soundport, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_WRITE(sandscrp_bankswitch_w) // ROM Bank
+ AM_RANGE(0x02, 0x03) AM_DEVREADWRITE("ymsnd", ym2203_r, ym2203_w) // PORTA/B read
+ AM_RANGE(0x04, 0x04) AM_DEVWRITE_MODERN("oki", okim6295_device, write) // OKIM6295
+ AM_RANGE(0x06, 0x06) AM_WRITE(sandscrp_soundlatch_w) //
+ AM_RANGE(0x07, 0x07) AM_READ(sandscrp_soundlatch_r) //
+ AM_RANGE(0x08, 0x08) AM_READ(sandscrp_latchstatus_r) //
+ADDRESS_MAP_END
+
+
+/***************************************************************************
+ Sand Scorpion
+***************************************************************************/
+
+static INPUT_PORTS_START( sandscrp )
+ PORT_START("P1") /* $b00000.w */
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("P2") /* $b00002.w */
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("SYSTEM") /* $b00004.w */
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_TILT )
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_SERVICE1 )
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("UNK") /* $b00006.w */
+ PORT_BIT( 0xffff, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("DSW1") /* read by the Z80 through the sound chip */
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x02, "1" )
+ PORT_DIPSETTING( 0x01, "2" )
+ PORT_DIPSETTING( 0x03, "3" )
+ PORT_DIPSETTING( 0x00, "5" )
+ PORT_DIPNAME( 0x0c, 0x0c, "Bombs" )
+ PORT_DIPSETTING( 0x08, "1" )
+ PORT_DIPSETTING( 0x04, "2" )
+ PORT_DIPSETTING( 0x0c, "3" )
+ PORT_DIPSETTING( 0x00, "5" )
+ PORT_DIPNAME( 0x30, 0x30, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) )
+ PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Bonus_Life ) )
+ PORT_DIPSETTING( 0x80, "100K, 300K" )
+ PORT_DIPSETTING( 0xc0, "200K, 500K" )
+ PORT_DIPSETTING( 0x40, "500K, 1000K" )
+ PORT_DIPSETTING( 0x00, "1000K, 3000K" )
+
+ PORT_START("DSW2") /* read by the Z80 through the sound chip */
+ PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x0a, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x0b, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x0d, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 8C_3C ) )
+ PORT_DIPSETTING( 0x0e, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 5C_3C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x09, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Allow_Continue ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
+INPUT_PORTS_END
+
+
+/* 16x16x4 tiles (made of four 8x8 tiles) */
+static const gfx_layout layout_16x16x4_2 =
+{
+ 16,16,
+ RGN_FRAC(1,1),
+ 4,
+ { STEP4(0,1) },
+ { STEP4(8*8*4*0 + 3*4, -4), STEP4(8*8*4*0 + 7*4, -4),
+ STEP4(8*8*4*1 + 3*4, -4), STEP4(8*8*4*1 + 7*4, -4) },
+ { STEP8(8*8*4*0, 8*4), STEP8(8*8*4*2, 8*4) },
+ 16*16*4
+};
+
+static const gfx_layout layout_16x16x4 =
+{
+ 16,16,
+ RGN_FRAC(1,1),
+ 4,
+ { STEP4(0,1) },
+ { STEP8(8*8*4*0,4), STEP8(8*8*4*1,4) },
+ { STEP8(8*8*4*0,8*4), STEP8(8*8*4*2,8*4) },
+ 16*16*4
+};
+
+
+static GFXDECODE_START( sandscrp )
+ GFXDECODE_ENTRY( "gfx1", 0, layout_16x16x4, 0x000, 0x10 ) // [0] Sprites
+ GFXDECODE_ENTRY( "gfx2", 0, layout_16x16x4_2, 0x400, 0x40 ) // [1] Layers
+GFXDECODE_END
+
+
+
+/***************************************************************************
+ Sand Scorpion
+***************************************************************************/
+
+/* YM3014B + YM2203C */
+
+static void irq_handler(device_t *device, int irq)
+{
+ cputag_set_input_line(device->machine(), "audiocpu", 0, irq ? ASSERT_LINE : CLEAR_LINE);
+}
+
+static const ym2203_interface ym2203_intf_sandscrp =
+{
+ {
+ AY8910_LEGACY_OUTPUT,
+ AY8910_DEFAULT_LOADS,
+ DEVCB_INPUT_PORT("DSW1"), /* Port A Read */
+ DEVCB_INPUT_PORT("DSW2"), /* Port B Read */
+ DEVCB_NULL, /* Port A Write */
+ DEVCB_NULL, /* Port B Write */
+ },
+ irq_handler /* IRQ handler */
+};
+
+
+static const kaneko_pandora_interface sandscrp_pandora_config =
+{
+ "screen", /* screen tag */
+ 0, /* gfx_region */
+ 0, 0 /* x_offs, y_offs */
+};
+
+static MACHINE_CONFIG_START( sandscrp, sandscrp_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000,12000000) /* TMP68HC000N-12 */
+ MCFG_CPU_PROGRAM_MAP(sandscrp)
+ MCFG_CPU_VBLANK_INT("screen", sandscrp_interrupt)
+
+ MCFG_CPU_ADD("audiocpu", Z80,4000000) /* Z8400AB1, Reads the DSWs: it can't be disabled */
+ MCFG_CPU_PROGRAM_MAP(sandscrp_soundmem)
+ MCFG_CPU_IO_MAP(sandscrp_soundport)
+
+ MCFG_WATCHDOG_TIME_INIT(attotime::from_seconds(3)) /* a guess, and certainly wrong */
+
+ MCFG_MACHINE_RESET(sandscrp)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME( ATTOSECONDS_IN_USEC(2500) /* not accurate */ )
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(256, 256)
+ MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 0+16, 256-16-1)
+ MCFG_SCREEN_UPDATE(sandscrp)
+ MCFG_SCREEN_EOF(sandscrp)
+
+ MCFG_GFXDECODE(sandscrp)
+ MCFG_PALETTE_LENGTH(2048)
+
+ MCFG_KANEKO_PANDORA_ADD("pandora", sandscrp_pandora_config)
+
+ MCFG_VIDEO_START(sandscrp_1xVIEW2)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_OKIM6295_ADD("oki", 12000000/6, OKIM6295_PIN7_HIGH)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.25)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.25)
+
+ MCFG_SOUND_ADD("ymsnd", YM2203, 4000000)
+ MCFG_SOUND_CONFIG(ym2203_intf_sandscrp)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.25)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.25)
+MACHINE_CONFIG_END
+
+
+
+/***************************************************************************
+
+ Sand Scorpion
+
+***************************************************************************/
+
+ROM_START( sandscrp ) /* Z03VA-003 PCB */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "11.bin", 0x000000, 0x040000, CRC(9b24ab40) SHA1(3187422dbe8b15d8053be4cb20e56d3e6afbd5f2) ) /* Location is IC4 */
+ ROM_LOAD16_BYTE( "12.bin", 0x000001, 0x040000, CRC(ad12caee) SHA1(83267445b89c3cf4dc317106aa68763d2f29eff7) ) /* Location is IC5 */
+
+ ROM_REGION( 0x24000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "8.ic51", 0x00000, 0x0c000, CRC(6f3e9db1) SHA1(06a04fa17f44319986913bff70433510c89e38f1) )
+ ROM_CONTINUE( 0x10000, 0x14000 )
+
+ ROM_REGION( 0x100000, "gfx1", 0 ) /* Sprites */
+ ROM_LOAD( "5.ic16", 0x000000, 0x080000, CRC(9bb675f6) SHA1(c3f6768cfd99a0e19ca2224fff9aa4e27ec0da24) )
+ ROM_LOAD( "6.ic17", 0x080000, 0x080000, CRC(7df2f219) SHA1(e2a59e201bfededa92d6c86f8dc1b212527ef66f) )
+
+ ROM_REGION( 0x100000, "gfx2", 0 ) /* Layers */
+ ROM_LOAD16_BYTE( "4.ic32", 0x000000, 0x080000, CRC(b9222ff2) SHA1(a445da3f7f5dea5ff64bb0b048f624f947875a39) )
+ ROM_LOAD16_BYTE( "3.ic33", 0x000001, 0x080000, CRC(adf20fa0) SHA1(67a7a2be774c86916cbb97e4c9b16c2e48125780) )
+
+ ROM_REGION( 0x040000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "7.ic55", 0x000000, 0x040000, CRC(9870ab12) SHA1(5ea3412cbc57bfaa32a1e2552b2eb46f4ceb5fa8) )
+ROM_END
+
+ROM_START( sandscrpa ) /* Z03VA-003 PCB, earlier program version */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "1.ic4", 0x000000, 0x040000, CRC(c0943ae2) SHA1(04dac4e1f116cd96d6292daa61ef40efc7eba919) )
+ ROM_LOAD16_BYTE( "2.ic5", 0x000001, 0x040000, CRC(6a8e0012) SHA1(2350b11c9bd545c8ba4b3c25cd6547ba2ad474b5) )
+
+ ROM_REGION( 0x24000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "8.ic51", 0x00000, 0x0c000, CRC(6f3e9db1) SHA1(06a04fa17f44319986913bff70433510c89e38f1) )
+ ROM_CONTINUE( 0x10000, 0x14000 )
+
+ ROM_REGION( 0x100000, "gfx1", 0 ) /* Sprites */
+ ROM_LOAD( "5.ic16", 0x000000, 0x080000, CRC(9bb675f6) SHA1(c3f6768cfd99a0e19ca2224fff9aa4e27ec0da24) )
+ ROM_LOAD( "6.ic17", 0x080000, 0x080000, CRC(7df2f219) SHA1(e2a59e201bfededa92d6c86f8dc1b212527ef66f) )
+
+ ROM_REGION( 0x100000, "gfx2", 0 ) /* Layers */
+ ROM_LOAD16_BYTE( "4.ic32", 0x000000, 0x080000, CRC(b9222ff2) SHA1(a445da3f7f5dea5ff64bb0b048f624f947875a39) )
+ ROM_LOAD16_BYTE( "3.ic33", 0x000001, 0x080000, CRC(adf20fa0) SHA1(67a7a2be774c86916cbb97e4c9b16c2e48125780) )
+
+ ROM_REGION( 0x040000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "7.ic55", 0x000000, 0x040000, CRC(9870ab12) SHA1(5ea3412cbc57bfaa32a1e2552b2eb46f4ceb5fa8) )
+ROM_END
+
+
+ROM_START( sandscrpb ) /* Different rev PCB */
+ ROM_REGION( 0x080000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "11.ic4", 0x000000, 0x040000, CRC(80020cab) SHA1(4f1f4d8ea07ad745f2d6d3f800686f07fe4bf20f) ) /* Chinese title screen */
+ ROM_LOAD16_BYTE( "12.ic5", 0x000001, 0x040000, CRC(8df1d42f) SHA1(2a9db5c4b99a8a3f62bffa9ddd96a95e2042602b) ) /* Game & test menu in English */
+ /* internet translators come up with "fighter lion king" and / or "Hits lion Emperor Quickly" */
+
+ ROM_REGION( 0x24000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "8.ic51", 0x00000, 0x0c000, CRC(6f3e9db1) SHA1(06a04fa17f44319986913bff70433510c89e38f1) )
+ ROM_CONTINUE( 0x10000, 0x14000 )
+
+ ROM_REGION( 0x100000, "gfx1", 0 ) /* Sprites */
+ ROM_LOAD( "ss502.ic16", 0x000000, 0x100000, CRC(d8012ebb) SHA1(975bbb3b57a09e41d2257d4fa3a64097144de554) )
+
+ ROM_REGION( 0x100000, "gfx2", 0 ) /* Layers */
+ ROM_LOAD16_WORD_SWAP( "ss501.ic30", 0x000000, 0x100000, CRC(0cf9f99d) SHA1(47f7f120d2bc075bedaff0a44306a8f46a1d848c) )
+
+ ROM_REGION( 0x040000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "7.ic55", 0x000000, 0x040000, CRC(9870ab12) SHA1(5ea3412cbc57bfaa32a1e2552b2eb46f4ceb5fa8) )
+ROM_END
+
+
+GAME( 1992, sandscrp, 0, sandscrp, sandscrp, 0, ROT90, "Face", "Sand Scorpion", 0 )
+GAME( 1992, sandscrpa, sandscrp, sandscrp, sandscrp, 0, ROT90, "Face", "Sand Scorpion (Earlier)", 0 )
+GAME( 1992, sandscrpb, sandscrp, sandscrp, sandscrp, 0, ROT90, "Face", "Sand Scorpion (Chinese Title Screen, Revised Hardware)", 0 )