diff options
Diffstat (limited to 'trunk/src/mame/drivers/backfire.c')
-rw-r--r-- | trunk/src/mame/drivers/backfire.c | 718 |
1 files changed, 718 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/backfire.c b/trunk/src/mame/drivers/backfire.c new file mode 100644 index 00000000000..1a2638acc52 --- /dev/null +++ b/trunk/src/mame/drivers/backfire.c @@ -0,0 +1,718 @@ +/* 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) , + m_mainram(*this, "mainram"), + m_left_priority(*this, "left_priority"), + m_right_priority(*this, "right_priority"){ } + + /* memory pointers */ + UINT16 * m_spriteram_1; + UINT16 * m_spriteram_2; + required_shared_ptr<UINT32> m_mainram; + required_shared_ptr<UINT32> m_left_priority; + required_shared_ptr<UINT32> m_right_priority; + + /* video related */ + bitmap_ind16 *m_left; + bitmap_ind16 *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]; + DECLARE_READ32_MEMBER(backfire_control2_r); + DECLARE_READ32_MEMBER(backfire_control3_r); + DECLARE_WRITE32_MEMBER(backfire_nonbuffered_palette_w); + DECLARE_READ32_MEMBER(backfire_pf1_rowscroll_r); + DECLARE_READ32_MEMBER(backfire_pf2_rowscroll_r); + DECLARE_READ32_MEMBER(backfire_pf3_rowscroll_r); + DECLARE_READ32_MEMBER(backfire_pf4_rowscroll_r); + DECLARE_WRITE32_MEMBER(backfire_pf1_rowscroll_w); + DECLARE_WRITE32_MEMBER(backfire_pf2_rowscroll_w); + DECLARE_WRITE32_MEMBER(backfire_pf3_rowscroll_w); + DECLARE_WRITE32_MEMBER(backfire_pf4_rowscroll_w); + DECLARE_READ32_MEMBER(backfire_spriteram1_r); + DECLARE_WRITE32_MEMBER(backfire_spriteram1_w); + DECLARE_READ32_MEMBER(backfire_spriteram2_r); + DECLARE_WRITE32_MEMBER(backfire_spriteram2_w); + DECLARE_READ32_MEMBER(backfire_speedup_r); + DECLARE_READ32_MEMBER(backfire_unknown_wheel_r); + DECLARE_READ32_MEMBER(backfire_wheel1_r); + DECLARE_READ32_MEMBER(backfire_wheel2_r); +}; + +//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_ind16_alloc(machine, 80*8, 32*8); + state->m_right = auto_bitmap_ind16_alloc(machine, 80*8, 32*8); + + 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_IND16( backfire_left ) +{ + backfire_state *state = screen.machine().driver_data<backfire_state>(); + + //FIXME: flip_screen_x should not be written! + state->flip_screen_set_no_update(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); + + screen.machine().priority_bitmap.fill(0); + bitmap.fill(0x100, cliprect); + + 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(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(bitmap, cliprect, state->m_spriteram_1, 0x800); + } + else + popmessage( "unknown left priority %08x", state->m_left_priority[0]); + + return 0; +} + +static SCREEN_UPDATE_IND16( backfire_right ) +{ + backfire_state *state = screen.machine().driver_data<backfire_state>(); + + //FIXME: flip_screen_x should not be written! + state->flip_screen_set_no_update(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); + + screen.machine().priority_bitmap.fill(0); + bitmap.fill(0x500, cliprect); + + 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(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(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) | device->machine().root_device().ioport("IN0")->read() + | ((device->machine().root_device().ioport("IN2")->read() & 0xbf) << 16) + | ((device->machine().root_device().ioport("IN3")->read() & 0x40) << 16)) ^ (backfire_screen << 26) ; +} + +READ32_MEMBER(backfire_state::backfire_control2_r) +{ + +// logerror("%08x:Read eprom %08x (%08x)\n", cpu_get_pc(&space.device()), offset << 1, mem_mask); + return (m_eeprom->read_bit() << 24) | ioport("IN1")->read() | (ioport("IN1")->read() << 16); +} + +#ifdef UNUSED_FUNCTION +READ32_MEMBER(backfire_state::backfire_control3_r) +{ + +// logerror("%08x:Read eprom %08x (%08x)\n", cpu_get_pc(&space.device()), offset << 1, mem_mask); + return (m_eeprom->read_bit() << 24) | ioport("IN2")->read() | (ioport("IN2")->read() << 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); + } +} + + +WRITE32_MEMBER(backfire_state::backfire_nonbuffered_palette_w) +{ + COMBINE_DATA(&m_generic_paletteram_32[offset]); + palette_set_color_rgb(machine(),offset,pal5bit(m_generic_paletteram_32[offset] >> 0),pal5bit(m_generic_paletteram_32[offset] >> 5),pal5bit(m_generic_paletteram_32[offset] >> 10)); +} + +/* map 32-bit writes to 16-bit */ + +READ32_MEMBER(backfire_state::backfire_pf1_rowscroll_r){ return m_pf1_rowscroll[offset] ^ 0xffff0000; } +READ32_MEMBER(backfire_state::backfire_pf2_rowscroll_r){ return m_pf2_rowscroll[offset] ^ 0xffff0000; } +READ32_MEMBER(backfire_state::backfire_pf3_rowscroll_r){ return m_pf3_rowscroll[offset] ^ 0xffff0000; } +READ32_MEMBER(backfire_state::backfire_pf4_rowscroll_r){ return m_pf4_rowscroll[offset] ^ 0xffff0000; } +WRITE32_MEMBER(backfire_state::backfire_pf1_rowscroll_w){ data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&m_pf1_rowscroll[offset]); } +WRITE32_MEMBER(backfire_state::backfire_pf2_rowscroll_w){ data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&m_pf2_rowscroll[offset]); } +WRITE32_MEMBER(backfire_state::backfire_pf3_rowscroll_w){ data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&m_pf3_rowscroll[offset]); } +WRITE32_MEMBER(backfire_state::backfire_pf4_rowscroll_w){ data &= 0x0000ffff; mem_mask &= 0x0000ffff; COMBINE_DATA(&m_pf4_rowscroll[offset]); } + + +#ifdef UNUSED_FUNCTION +READ32_MEMBER(backfire_state::backfire_unknown_wheel_r) +{ + return ioport("PADDLE0")->read(); +} + +READ32_MEMBER(backfire_state::backfire_wheel1_r) +{ + return machine().rand(); +} + +READ32_MEMBER(backfire_state::backfire_wheel2_r) +{ + return machine().rand(); +} +#endif + + +READ32_MEMBER(backfire_state::backfire_spriteram1_r) +{ + return m_spriteram_1[offset] ^ 0xffff0000; +} + +WRITE32_MEMBER(backfire_state::backfire_spriteram1_w) +{ + data &= 0x0000ffff; + mem_mask &= 0x0000ffff; + + COMBINE_DATA(&m_spriteram_1[offset]); +} + +READ32_MEMBER(backfire_state::backfire_spriteram2_r) +{ + return m_spriteram_2[offset] ^ 0xffff0000; +} + +WRITE32_MEMBER(backfire_state::backfire_spriteram2_w) +{ + data &= 0x0000ffff; + mem_mask &= 0x0000ffff; + + COMBINE_DATA(&m_spriteram_2[offset]); +} + + + +static ADDRESS_MAP_START( backfire_map, AS_PROGRAM, 32, backfire_state ) + AM_RANGE(0x000000, 0x0fffff) AM_ROM + AM_RANGE(0x100000, 0x10001f) AM_DEVREADWRITE_LEGACY("tilegen1", deco16ic_pf_control_dword_r, deco16ic_pf_control_dword_w) + AM_RANGE(0x110000, 0x111fff) AM_DEVREADWRITE_LEGACY("tilegen1", deco16ic_pf1_data_dword_r, deco16ic_pf1_data_dword_w) + AM_RANGE(0x114000, 0x115fff) AM_DEVREADWRITE_LEGACY("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_LEGACY("tilegen2", deco16ic_pf_control_dword_r, deco16ic_pf_control_dword_w) + AM_RANGE(0x140000, 0x141fff) AM_DEVREADWRITE_LEGACY("tilegen2", deco16ic_pf1_data_dword_r, deco16ic_pf1_data_dword_w) + AM_RANGE(0x144000, 0x145fff) AM_DEVREADWRITE_LEGACY("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_SHARE("paletteram") + AM_RANGE(0x170000, 0x177fff) AM_RAM AM_SHARE("mainram")// main ram + +// AM_RANGE(0x180010, 0x180013) AM_RAM AM_BASE_LEGACY(&backfire_180010) // always 180010 ? +// AM_RANGE(0x188010, 0x188013) AM_RAM AM_BASE_LEGACY(&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_LEGACY("eeprom", backfire_eeprom_r) + AM_RANGE(0x194000, 0x194003) AM_READ(backfire_control2_r) + AM_RANGE(0x1a4000, 0x1a4003) AM_DEVWRITE_LEGACY("eeprom", backfire_eeprom_w) + + AM_RANGE(0x1a8000, 0x1a8003) AM_RAM AM_SHARE("left_priority") + AM_RANGE(0x1ac000, 0x1ac003) AM_RAM AM_SHARE("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_LEGACY("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_CUSTOM ) PORT_VBLANK("lscreen") + 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_CUSTOM ) PORT_VBLANK("lscreen") + 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_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_STATIC(backfire_left) + + MCFG_SCREEN_ADD("rscreen", RASTER) + 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_STATIC(backfire_right) + + 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.root_device().memregion("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); +} + +READ32_MEMBER(backfire_state::backfire_speedup_r) +{ + + //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 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); + backfire_state *state = machine.driver_data<backfire_state>(); + machine.device("maincpu")->memory().space(AS_PROGRAM)->install_read_handler(0x0170018, 0x017001b, read32_delegate(FUNC(backfire_state::backfire_speedup_r), state)); +} + +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 |