/* Data East Backfire!
Backfire!
inputs are incomplete (p2 side.., alt control modes etc.)
there may still be some problems with the 156 co-processor, but it seems to be mostly correct
set 2 defaults to wheel controls, so until they're mapped you must change back to joystick in test mode
*/
#define DE156CPU ARM
#include "emu.h"
#include "includes/decocrpt.h"
#include "machine/eeprom.h"
#include "sound/okim6295.h"
#include "sound/ymz280b.h"
#include "cpu/arm/arm.h"
#include "video/deco16ic.h"
#include "rendlay.h"
#include "video/decospr.h"
class backfire_state : public driver_device
{
public:
backfire_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
/* memory pointers */
UINT16 * m_spriteram_1;
UINT16 * m_spriteram_2;
UINT32 * m_mainram;
UINT32 * m_left_priority;
UINT32 * m_right_priority;
/* video related */
bitmap_t *m_left;
bitmap_t *m_right;
/* devices */
device_t *m_maincpu;
device_t *m_deco_tilegen1;
device_t *m_deco_tilegen2;
device_t *m_lscreen;
device_t *m_rscreen;
eeprom_device *m_eeprom;
/* memory */
UINT16 m_pf1_rowscroll[0x0800/2];
UINT16 m_pf2_rowscroll[0x0800/2];
UINT16 m_pf3_rowscroll[0x0800/2];
UINT16 m_pf4_rowscroll[0x0800/2];
};
//UINT32 *backfire_180010, *backfire_188010;
/* I'm using the functions in deco16ic.c ... same chips, why duplicate code? */
static VIDEO_START( backfire )
{
backfire_state *state = machine.driver_data<backfire_state>();
state->m_spriteram_1 = auto_alloc_array(machine, UINT16, 0x2000/2);
state->m_spriteram_2 = auto_alloc_array(machine, UINT16, 0x2000/2);
/* and register the allocated ram so that save states still work */
state->save_item(NAME(state->m_pf1_rowscroll));
state->save_item(NAME(state->m_pf2_rowscroll));
state->save_item(NAME(state->m_pf3_rowscroll));
state->save_item(NAME(state->m_pf4_rowscroll));
state->m_left = auto_bitmap_alloc(machine, 80*8, 32*8, BITMAP_FORMAT_INDEXED16);
state->m_right = auto_bitmap_alloc(machine, 80*8, 32*8, BITMAP_FORMAT_INDEXED16);
state->save_pointer(NAME(state->m_spriteram_1), 0x2000/2);
state->save_pointer(NAME(state->m_spriteram_2), 0x2000/2);
state->save_item(NAME(*state->m_left));
state->save_item(NAME(*state->m_right));
}
static SCREEN_UPDATE( backfire )
{
backfire_state *state = screen->machine().driver_data<backfire_state>();
//FIXME: flip_screen_x should not be written!
flip_screen_set_no_update(screen->machine(), 1);
/* screen 1 uses pf1 as the forground and pf3 as the background */
/* screen 2 uses pf2 as the foreground and pf4 as the background */
deco16ic_pf_update(state->m_deco_tilegen1, state->m_pf1_rowscroll, state->m_pf2_rowscroll);
deco16ic_pf_update(state->m_deco_tilegen2, state->m_pf3_rowscroll, state->m_pf4_rowscroll);
if (screen == state->m_lscreen)
{
bitmap_fill(screen->machine().priority_bitmap, NULL, 0);
bitmap_fill(bitmap, cliprect, 0x100);
if (state->m_left_priority[0] == 0)
{
deco16ic_tilemap_1_draw(state->m_deco_tilegen2, bitmap, cliprect, 0, 1);
deco16ic_tilemap_1_draw(state->m_deco_tilegen1, bitmap, cliprect, 0, 2);
screen->machine().device<decospr_device>("spritegen")->draw_sprites(screen->machine(), bitmap, cliprect, state->m_spriteram_1, 0x800);
}
else if (state->m_left_priority[0] == 2)
{
deco16ic_tilemap_1_draw(state->m_deco_tilegen1, bitmap, cliprect, 0, 2);
deco16ic_tilemap_1_draw(state->m_deco_tilegen2, bitmap, cliprect, 0, 4);
screen->machine().device<decospr_device>("spritegen")->draw_sprites(screen->machine(), bitmap, cliprect, state->m_spriteram_1, 0x800);
}
else
popmessage( "unknown left priority %08x", state->m_left_priority[0]);
}
else if (screen == state->m_rscreen)
{
bitmap_fill(screen->machine().priority_bitmap, NULL, 0);
bitmap_fill(bitmap, cliprect, 0x500);
if (state->m_right_priority[0] == 0)
{
deco16ic_tilemap_2_draw(state->m_deco_tilegen2, bitmap, cliprect, 0, 1);
deco16ic_tilemap_2_draw(state->m_deco_tilegen1, bitmap, cliprect, 0, 2);
screen->machine().device<decospr_device>("spritegen2")->draw_sprites(screen->machine(), bitmap, cliprect, state->m_spriteram_2, 0x800);
}
else if (state->m_right_priority[0] == 2)
{
deco16ic_tilemap_2_draw(state->m_deco_tilegen1, bitmap, cliprect, 0, 2);
deco16ic_tilemap_2_draw(state->m_deco_tilegen2, bitmap, cliprect, 0, 4);
screen->machine().device<decospr_device>("spritegen2")->draw_sprites(screen->machine(), bitmap, cliprect, state->m_spriteram_2, 0x800);
}
else
popmessage( "unknown right priority %08x", state->m_right_priority[0]);
}
return 0;
}
static READ32_DEVICE_HANDLER( backfire_eeprom_r )
{
/* some kind of screen indicator? checked by backfirea set before it will boot */
int backfire_screen = device->machine().rand() & 1;
eeprom_device *eeprom = downcast<eeprom_device *>(device);
return ((eeprom->read_bit() << 24) | input_port_read(device->machine(), "IN0")
| ((input_port_read(device->machine(), "IN2") & 0xbf) << 16)
| ((input_port_read(device->machine(), "IN3") & 0x40) << 16)) ^ (backfire_screen << 26) ;
}
static READ32_HANDLER( backfire_control2_r )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
// logerror("%08x:Read eprom %08x (%08x)\n", cpu_get_pc(&space->device()), offset << 1, mem_mask);
return (state->m_eeprom->read_bit() << 24) | input_port_read(space->machine(), "IN1") | (input_port_read(space->machine(), "IN1") << 16);
}
#ifdef UNUSED_FUNCTION
static READ32_HANDLER(backfire_control3_r)
{
backfire_state *state = space->machine().driver_data<backfire_state>();
// logerror("%08x:Read eprom %08x (%08x)\n", cpu_get_pc(&space->device()), offset << 1, mem_mask);
return (state->m_eeprom->read_bit() << 24) | input_port_read(space->machine(), "IN2") | (input_port_read(space->machine(), "IN2") << 16);
}
#endif
static WRITE32_DEVICE_HANDLER(backfire_eeprom_w)
{
logerror("%s:write eprom %08x (%08x) %08x\n",device->machine().describe_context(),offset<<1,mem_mask,data);
if (ACCESSING_BITS_0_7)
{
eeprom_device *eeprom = downcast<eeprom_device *>(device);
eeprom->set_clock_line(BIT(data, 1) ? ASSERT_LINE : CLEAR_LINE);
eeprom->write_bit(BIT(data, 0));
eeprom->set_cs_line(BIT(data, 2) ? CLEAR_LINE : ASSERT_LINE);
}
}
static WRITE32_HANDLER(backfire_nonbuffered_palette_w)
{
COMBINE_DATA(&space->machine().generic.paletteram.u32[offset]);
palette_set_color_rgb(space->machine(),offset,pal5bit(space->machine().generic.paletteram.u32[offset] >> 0),pal5bit(space->machine().generic.paletteram.u32[offset] >> 5),pal5bit(space->machine().generic.paletteram.u32[offset] >> 10));
}
/* map 32-bit writes to 16-bit */
static READ32_HANDLER( backfire_pf1_rowscroll_r ) { backfire_state *state = space->machine().driver_data<backfire_state>(); return state->m_pf1_rowscroll[offset] ^ 0xffff0000; }
static READ32_HANDLER( backfire_pf2_rowscroll_r ) { backfire_state *state = space->machine().driver_data<backfire_state>(); return state->m_pf2_rowscroll[offset] ^ 0xffff0000; }
static READ32_HANDLER( backfire_pf3_rowscroll_r ) { backfire_state *state = space->machine().driver_data<backfire_state>(); return state->m_pf3_rowscroll[offset] ^ 0xffff0000; }
static READ32_HANDLER( backfire_pf4_rowscroll_r ) { backfire_state *state = space->machine().driver_data<backfire_state>(); return state->m_pf4_rowscroll[offset] ^ 0xffff0000; }
static WRITE32_HANDLER( backfire_pf1_rowscroll_w ) { backfire_state *state = space->machine().driver_data<backfire_state>(); data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&state->m_pf1_rowscroll[offset]); }
static WRITE32_HANDLER( backfire_pf2_rowscroll_w ) { backfire_state *state = space->machine().driver_data<backfire_state>(); data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&state->m_pf2_rowscroll[offset]); }
static WRITE32_HANDLER( backfire_pf3_rowscroll_w ) { backfire_state *state = space->machine().driver_data<backfire_state>(); data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&state->m_pf3_rowscroll[offset]); }
static WRITE32_HANDLER( backfire_pf4_rowscroll_w ) { backfire_state *state = space->machine().driver_data<backfire_state>(); data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&state->m_pf4_rowscroll[offset]); }
#ifdef UNUSED_FUNCTION
READ32_HANDLER( backfire_unknown_wheel_r )
{
return input_port_read(space->machine(), "PADDLE0");
}
READ32_HANDLER( backfire_wheel1_r )
{
return space->machine().rand();
}
READ32_HANDLER( backfire_wheel2_r )
{
return space->machine().rand();
}
#endif
static READ32_HANDLER( backfire_spriteram1_r )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
return state->m_spriteram_1[offset] ^ 0xffff0000;
}
static WRITE32_HANDLER( backfire_spriteram1_w )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
data &= 0x0000ffff;
mem_mask &= 0x0000ffff;
COMBINE_DATA(&state->m_spriteram_1[offset]);
}
static READ32_HANDLER( backfire_spriteram2_r )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
return state->m_spriteram_2[offset] ^ 0xffff0000;
}
static WRITE32_HANDLER( backfire_spriteram2_w )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
data &= 0x0000ffff;
mem_mask &= 0x0000ffff;
COMBINE_DATA(&state->m_spriteram_2[offset]);
}
static ADDRESS_MAP_START( backfire_map, AS_PROGRAM, 32 )
AM_RANGE(0x000000, 0x0fffff) AM_ROM
AM_RANGE(0x100000, 0x10001f) AM_DEVREADWRITE("tilegen1", deco16ic_pf_control_dword_r, deco16ic_pf_control_dword_w)
AM_RANGE(0x110000, 0x111fff) AM_DEVREADWRITE("tilegen1", deco16ic_pf1_data_dword_r, deco16ic_pf1_data_dword_w)
AM_RANGE(0x114000, 0x115fff) AM_DEVREADWRITE("tilegen1", deco16ic_pf2_data_dword_r, deco16ic_pf2_data_dword_w)
AM_RANGE(0x120000, 0x120fff) AM_READWRITE(backfire_pf1_rowscroll_r, backfire_pf1_rowscroll_w)
AM_RANGE(0x124000, 0x124fff) AM_READWRITE(backfire_pf2_rowscroll_r, backfire_pf2_rowscroll_w)
AM_RANGE(0x130000, 0x13001f) AM_DEVREADWRITE("tilegen2", deco16ic_pf_control_dword_r, deco16ic_pf_control_dword_w)
AM_RANGE(0x140000, 0x141fff) AM_DEVREADWRITE("tilegen2", deco16ic_pf1_data_dword_r, deco16ic_pf1_data_dword_w)
AM_RANGE(0x144000, 0x145fff) AM_DEVREADWRITE("tilegen2", deco16ic_pf2_data_dword_r, deco16ic_pf2_data_dword_w)
AM_RANGE(0x150000, 0x150fff) AM_READWRITE(backfire_pf3_rowscroll_r, backfire_pf3_rowscroll_w)
AM_RANGE(0x154000, 0x154fff) AM_READWRITE(backfire_pf4_rowscroll_r, backfire_pf4_rowscroll_w)
AM_RANGE(0x160000, 0x161fff) AM_WRITE(backfire_nonbuffered_palette_w) AM_BASE_GENERIC(paletteram)
AM_RANGE(0x170000, 0x177fff) AM_RAM AM_BASE_MEMBER(backfire_state, m_mainram)// main ram
// AM_RANGE(0x180010, 0x180013) AM_RAM AM_BASE(&backfire_180010) // always 180010 ?
// AM_RANGE(0x188010, 0x188013) AM_RAM AM_BASE(&backfire_188010) // always 188010 ?
AM_RANGE(0x184000, 0x185fff) AM_READWRITE(backfire_spriteram1_r, backfire_spriteram1_w)
AM_RANGE(0x18c000, 0x18dfff) AM_READWRITE(backfire_spriteram2_r, backfire_spriteram2_w)
AM_RANGE(0x190000, 0x190003) AM_DEVREAD("eeprom", backfire_eeprom_r)
AM_RANGE(0x194000, 0x194003) AM_READ(backfire_control2_r)
AM_RANGE(0x1a4000, 0x1a4003) AM_DEVWRITE("eeprom", backfire_eeprom_w)
AM_RANGE(0x1a8000, 0x1a8003) AM_RAM AM_BASE_MEMBER(backfire_state, m_left_priority)
AM_RANGE(0x1ac000, 0x1ac003) AM_RAM AM_BASE_MEMBER(backfire_state, m_right_priority)
// AM_RANGE(0x1b0000, 0x1b0003) AM_WRITENOP // always 1b0000
/* when set to pentometer in test mode */
// AM_RANGE(0x1e4000, 0x1e4003) AM_READ(backfire_unknown_wheel_r)
// AM_RANGE(0x1e8000, 0x1e8003) AM_READ(backfire_wheel1_r)
// AM_RANGE(0x1e8004, 0x1e8007) AM_READ(backfire_wheel2_r)
AM_RANGE(0x1c0000, 0x1c0007) AM_DEVREADWRITE8("ymz", ymz280b_r, ymz280b_w, 0x000000ff)
ADDRESS_MAP_END
static INPUT_PORTS_START( backfire )
PORT_START("IN0")
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)
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_START1 )
PORT_START("IN1")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
PORT_START("IN2")
PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_SERVICE1 )
PORT_SERVICE_NO_TOGGLE( 0x0008, IP_ACTIVE_LOW )
PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_VBLANK )
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNUSED ) /* 'soundmask' */
PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(1)
PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1)
PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(1)
PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2)
PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(2)
PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(2)
PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("IN3")
PORT_BIT( 0x003f, IP_ACTIVE_LOW, IPT_UNUSED ) /* all other bits like low IN2 */
PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_VBLANK )
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("PADDLE0")
PORT_BIT ( 0x00ff, 0x0080, IPT_PADDLE ) PORT_SENSITIVITY(30) PORT_KEYDELTA(1)
PORT_START("PADDLE1")
PORT_BIT ( 0x00ff, 0x0080, IPT_PADDLE ) PORT_SENSITIVITY(30) PORT_KEYDELTA(1)
PORT_START("UNK")
/* ?? */
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8,
RGN_FRAC(1,2),
4,
{ RGN_FRAC(1,2)+8, RGN_FRAC(1,2), 8, 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
16*8 /* every char takes 8 consecutive bytes */
};
static const gfx_layout spritelayout =
{
16,16,
RGN_FRAC(1,1),
4,
{ 16, 0, 24, 8 },
{ 64*8+0, 64*8+1, 64*8+2, 64*8+3, 64*8+4, 64*8+5, 64*8+6, 64*8+7,
0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
128*8
};
static const gfx_layout tilelayout =
{
16,16,
RGN_FRAC(1,2),
4,
{ RGN_FRAC(1,2)+8, RGN_FRAC(1,2), 8, 0 },
{ 32*8+0, 32*8+1, 32*8+2, 32*8+3, 32*8+4, 32*8+5, 32*8+6, 32*8+7,
0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16,
8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16 },
64*8
};
static GFXDECODE_START( backfire )
GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 128 ) /* Characters 8x8 */
GFXDECODE_ENTRY( "gfx1", 0, tilelayout, 0, 128 ) /* Tiles 16x16 */
GFXDECODE_ENTRY( "gfx2", 0, charlayout, 0, 128 ) /* Characters 8x8 */
GFXDECODE_ENTRY( "gfx2", 0, tilelayout, 0, 128 ) /* Tiles 16x16 */
GFXDECODE_ENTRY( "gfx3", 0, spritelayout, 0x200, 32 ) /* Sprites 16x16 (screen 1) */
GFXDECODE_ENTRY( "gfx4", 0, spritelayout, 0x600, 32 ) /* Sprites 16x16 (screen 2) */
GFXDECODE_END
static void sound_irq_gen(device_t *device, int state)
{
logerror("sound irq\n");
}
static const ymz280b_interface ymz280b_intf =
{
sound_irq_gen
};
static INTERRUPT_GEN( deco32_vbl_interrupt )
{
device_set_input_line(device, ARM_IRQ_LINE, HOLD_LINE);
}
static int backfire_bank_callback( int bank )
{
// mame_printf_debug("bank callback %04x\n",bank); // bit 1 gets set too?
bank = bank >> 4;
bank = (bank & 1) | ((bank & 4) >> 1) | ((bank & 2) << 1);
return bank * 0x1000;
}
static const deco16ic_interface backfire_deco16ic_tilegen1_intf =
{
"lscreen",
0, 1,
0x0f, 0x0f, /* trans masks (default values) */
0x00, 0x40, /* color base */
0x0f, 0x0f, /* color masks (default values) */
backfire_bank_callback,
backfire_bank_callback,
0,1
};
static const deco16ic_interface backfire_deco16ic_tilegen2_intf =
{
"lscreen",
0, 1,
0x0f, 0x0f, /* trans masks (default values) */
0x10, 0x50, /* color base */
0x0f, 0x0f, /* color masks (default values) */
backfire_bank_callback,
backfire_bank_callback,
2,3
};
static MACHINE_START( backfire )
{
backfire_state *state = machine.driver_data<backfire_state>();
state->m_maincpu = machine.device("maincpu");
state->m_deco_tilegen1 = machine.device("tilegen1");
state->m_deco_tilegen2 = machine.device("tilegen2");
state->m_lscreen = machine.device("lscreen");
state->m_rscreen = machine.device("rscreen");
state->m_eeprom = machine.device<eeprom_device>("eeprom");
}
UINT16 backfire_pri_callback(UINT16 x)
{
switch (x & 0xc000)
{
case 0x0000: return 0; break; // numbers, people, cars when in the air, status display..
case 0x4000: return 0xf0;break; // cars most of the time
case 0x8000: return 0; break; // car wheels during jump?
case 0xc000: return 0xf0;break; /* car wheels in race? */
}
return 0;
}
static MACHINE_CONFIG_START( backfire, backfire_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", ARM, 28000000/4) /* Unconfirmed */
MCFG_CPU_PROGRAM_MAP(backfire_map)
MCFG_CPU_VBLANK_INT("lscreen", deco32_vbl_interrupt) /* or is it "rscreen?" */
MCFG_EEPROM_93C46_ADD("eeprom")
MCFG_MACHINE_START(backfire)
/* video hardware */
MCFG_PALETTE_LENGTH(2048)
MCFG_GFXDECODE(backfire)
MCFG_DEFAULT_LAYOUT(layout_dualhsxs)
MCFG_SCREEN_ADD("lscreen", RASTER)
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MCFG_SCREEN_SIZE(40*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
MCFG_SCREEN_UPDATE(backfire)
MCFG_SCREEN_ADD("rscreen", RASTER)
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MCFG_SCREEN_SIZE(40*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 1*8, 31*8-1)
MCFG_SCREEN_UPDATE(backfire)
MCFG_VIDEO_START(backfire)
MCFG_DECO16IC_ADD("tilegen1", backfire_deco16ic_tilegen1_intf)
MCFG_DECO16IC_ADD("tilegen2", backfire_deco16ic_tilegen2_intf)
MCFG_DEVICE_ADD("spritegen", DECO_SPRITE, 0)
decospr_device::set_gfx_region(*device, 4);
decospr_device::set_pri_callback(*device, backfire_pri_callback);
MCFG_DEVICE_ADD("spritegen2", DECO_SPRITE, 0)
decospr_device::set_gfx_region(*device, 5);
decospr_device::set_pri_callback(*device, backfire_pri_callback);
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_SOUND_ADD("ymz", YMZ280B, 28000000 / 2)
MCFG_SOUND_CONFIG(ymz280b_intf)
MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MACHINE_CONFIG_END
/*
Backfire!
Data East, 1995
This game is similar to World Rally, Blomby Car, Drift Out'94 etc
PCB Layout
----------
DE-0432-2
---------------------------------------------------------------------
| MBZ-06.19L 28.000MHz MBZ-04.19A * |
| 52 |
| 153 MBZ-03.18A + |
| MBZ-05.17L |
| |
--| LC7881 YMZ280B-F 153 52 MBZ-04.16A * |
| |
--| MBZ-03.15A + |
| CY7C185 (x2) |
|J 141 |
| MBZ-02.12A |
|A |
| MBZ-01.10A |
|M 223 |
| MBZ-00.9A |
|M 93C45.8M CY7C185 (x2) 141 |
| |
|A |
| |
--| |
| |
--| TSW1 |
| CY7C185 (x4) |
| 156 |
| ADC0808 RA01-0.3J |
| RA00-0.2J |
|CONN2 CONN1 D4701 |
| |
---------------------------------------------------------------------
Notes:
CONN1 & CONN2: For connection of potentiometer or opto steering wheel.
Joystick (via JAMMA) can also be used for controls.
TSW1: Push Button TEST switch to access options menu (coins/lives etc).
* : These ROMs have identical contents AND identical halves.
+ : These ROMs have identical contents AND identical halves.
*/
ROM_START( backfire )
ROM_REGION( 0x100000, "maincpu", 0 ) /* DE156 code (encrypted) */
ROM_LOAD32_WORD( "ra00-0.2j", 0x000002, 0x080000, CRC(790da069) SHA1(84fd90fb1833b97459cb337fdb92f7b6e93b5936) )
ROM_LOAD32_WORD( "ra01-0.3j", 0x000000, 0x080000, CRC(447cb57b) SHA1(1d503b9cf1cadd3fdd7c9d6d59d4c40a59fa25ab))
ROM_REGION( 0x400000, "gfx1", 0 ) /* Tiles 1 */
ROM_LOAD( "mbz-00.9a", 0x000000, 0x080000, CRC(1098d504) SHA1(1fecd26b92faffce0b59a8a9646bfd457c17c87c) )
ROM_CONTINUE( 0x200000, 0x080000)
ROM_CONTINUE( 0x100000, 0x080000)
ROM_CONTINUE( 0x300000, 0x080000)
ROM_LOAD( "mbz-01.10a", 0x080000, 0x080000, CRC(19b81e5c) SHA1(4c8204a6a4ad30b23fbfdd79c6e39581e23de6ae) )
ROM_CONTINUE( 0x280000, 0x080000)
ROM_CONTINUE( 0x180000, 0x080000)
ROM_CONTINUE( 0x380000, 0x080000)
ROM_REGION( 0x100000, "gfx2", 0 ) /* Tiles 2 */
ROM_LOAD( "mbz-02.12a", 0x000000, 0x100000, CRC(2bd2b0a1) SHA1(8fcb37728f3248ad55e48f2d398b014b36c9ec05) )
ROM_REGION( 0x400000, "gfx3", 0 ) /* Sprites 1 */
ROM_LOAD16_BYTE( "mbz-03.15a", 0x000001, 0x200000, CRC(2e818569) SHA1(457c1cad25d9b21459262be8b5788969f566a996) )
ROM_LOAD16_BYTE( "mbz-04.16a", 0x000000, 0x200000, CRC(67bdafb1) SHA1(9729c18f3153e4bba703a6f46ad0b886c52d84e2) )
ROM_REGION( 0x400000, "gfx4", 0 ) /* Sprites 2 */
ROM_LOAD16_BYTE( "mbz-03.18a", 0x000001, 0x200000, CRC(2e818569) SHA1(457c1cad25d9b21459262be8b5788969f566a996) )
ROM_LOAD16_BYTE( "mbz-04.19a", 0x000000, 0x200000, CRC(67bdafb1) SHA1(9729c18f3153e4bba703a6f46ad0b886c52d84e2) )
ROM_REGION( 0x400000, "ymz", ROMREGION_ERASEFF ) /* samples */
ROM_LOAD( "mbz-05.17l", 0x000000, 0x200000, CRC(947c1da6) SHA1(ac36006e04dc5e3990f76539763cc76facd08376) )
ROM_LOAD( "mbz-06.19l", 0x200000, 0x080000, CRC(4a38c635) SHA1(7f0fb6a7a4aa6774c04fa38e53ceff8744fe1e9f) )
ROM_REGION( 0x0600, "plds", 0 )
ROM_LOAD( "gal16v8b.6b", 0x0000, 0x0117, NO_DUMP ) /* PAL is read protected */
ROM_LOAD( "gal16v8b.6d", 0x0200, 0x0117, NO_DUMP ) /* PAL is read protected */
ROM_LOAD( "gal16v8b.12n", 0x0400, 0x0117, NO_DUMP ) /* PAL is read protected */
ROM_END
ROM_START( backfirea )
ROM_REGION( 0x100000, "maincpu", 0 ) /* DE156 code (encrypted) */
ROM_LOAD32_WORD( "rb-00h.h2", 0x000002, 0x080000, CRC(60973046) SHA1(e70d9be9cb172920da2a2ac9d317768b1438c59d) )
ROM_LOAD32_WORD( "rb-01l.h3", 0x000000, 0x080000, CRC(27472f60) SHA1(d73b1e68dc51e28b1148db39ce22bd2e93f6fd0a) )
ROM_REGION( 0x400000, "gfx1", 0 ) /* Tiles 1 */
ROM_LOAD( "mbz-00.9a", 0x000000, 0x080000, CRC(1098d504) SHA1(1fecd26b92faffce0b59a8a9646bfd457c17c87c) )
ROM_CONTINUE( 0x200000, 0x080000)
ROM_CONTINUE( 0x100000, 0x080000)
ROM_CONTINUE( 0x300000, 0x080000)
ROM_LOAD( "mbz-01.10a", 0x080000, 0x080000, CRC(19b81e5c) SHA1(4c8204a6a4ad30b23fbfdd79c6e39581e23de6ae) )
ROM_CONTINUE( 0x280000, 0x080000)
ROM_CONTINUE( 0x180000, 0x080000)
ROM_CONTINUE( 0x380000, 0x080000)
ROM_REGION( 0x100000, "gfx2", 0 ) /* Tiles 2 */
ROM_LOAD( "mbz-02.12a", 0x000000, 0x100000, CRC(2bd2b0a1) SHA1(8fcb37728f3248ad55e48f2d398b014b36c9ec05) )
ROM_REGION( 0x400000, "gfx3", 0 ) /* Sprites 1 */
ROM_LOAD16_BYTE( "mbz-03.15a", 0x000001, 0x200000, CRC(2e818569) SHA1(457c1cad25d9b21459262be8b5788969f566a996) )
ROM_LOAD16_BYTE( "mbz-04.16a", 0x000000, 0x200000, CRC(67bdafb1) SHA1(9729c18f3153e4bba703a6f46ad0b886c52d84e2) )
ROM_REGION( 0x400000, "gfx4", 0 ) /* Sprites 2 */
ROM_LOAD16_BYTE( "mbz-03.18a", 0x000001, 0x200000, CRC(2e818569) SHA1(457c1cad25d9b21459262be8b5788969f566a996) )
ROM_LOAD16_BYTE( "mbz-04.19a", 0x000000, 0x200000, CRC(67bdafb1) SHA1(9729c18f3153e4bba703a6f46ad0b886c52d84e2) )
ROM_REGION( 0x400000, "ymz", ROMREGION_ERASEFF ) /* samples */
ROM_LOAD( "mbz-05.17l", 0x000000, 0x200000, CRC(947c1da6) SHA1(ac36006e04dc5e3990f76539763cc76facd08376) )
ROM_LOAD( "mbz-06.19l", 0x200000, 0x080000, CRC(4a38c635) SHA1(7f0fb6a7a4aa6774c04fa38e53ceff8744fe1e9f) )
ROM_END
static void descramble_sound( running_machine &machine )
{
UINT8 *rom = machine.region("ymz")->base();
int length = 0x200000; // only the first rom is swapped on backfire!
UINT8 *buf1 = auto_alloc_array(machine, UINT8, length);
UINT32 x;
for (x = 0; x < length; x++)
{
UINT32 addr;
addr = BITSWAP24 (x,23,22,21,0, 20,
19,18,17,16,
15,14,13,12,
11,10,9, 8,
7, 6, 5, 4,
3, 2, 1 );
buf1[addr] = rom[x];
}
memcpy(rom, buf1, length);
auto_free(machine, buf1);
}
static READ32_HANDLER( backfire_speedup_r )
{
backfire_state *state = space->machine().driver_data<backfire_state>();
//mame_printf_debug( "%08x\n",cpu_get_pc(&space->device()));
if (cpu_get_pc(&space->device() )== 0xce44) device_spin_until_time(&space->device(), attotime::from_usec(400)); // backfire
if (cpu_get_pc(&space->device()) == 0xcee4) device_spin_until_time(&space->device(), attotime::from_usec(400)); // backfirea
return state->m_mainram[0x18/4];
}
static DRIVER_INIT( backfire )
{
deco56_decrypt_gfx(machine, "gfx1"); /* 141 */
deco56_decrypt_gfx(machine, "gfx2"); /* 141 */
deco156_decrypt(machine);
machine.device("maincpu")->set_clock_scale(4.0f); /* core timings aren't accurate */
descramble_sound(machine);
machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_read_handler(0x0170018, 0x017001b, FUNC(backfire_speedup_r) );
}
GAME( 1995, backfire, 0, backfire, backfire, backfire, ROT0, "Data East Corporation", "Backfire! (set 1)", GAME_SUPPORTS_SAVE )
GAME( 1995, backfirea, backfire, backfire, backfire, backfire, ROT0, "Data East Corporation", "Backfire! (set 2)", GAME_SUPPORTS_SAVE ) // defaults to wheel controls, must change to joystick to play