// license:BSD-3-Clause // copyright-holders:David Haywood,Tomasz Slanina /**************************************************************** Wheels & Fire driver by David Haywood Tomasz Slanina TODO: - analogue accelerator is really slow - various gfx size/pos glitches (gaps, extra rows of pixels here and there) - real gfx zoom, based on the zoom params, not lookup table - apply double buffering (sometimes gfx is displayed at y+256 every other frame (extra bits are currently masked out)) - fix road/sky (extra bits in the scroll reg. are there two bitmap buffers? ) - bitmap layer clearing - fix wrong coords of sprites rendered into the bitmap layer (intro car) - implement(and find) layer enable/disable bits ---------------------------------- Produttore TCH N.revisione E133 CPU 2x MC68HC000FN16 2x TPC1020BFN-084C 1x BT478KPJ50-615-9132F 1x S9530AG-ADC0808-CCV 1x oscillator 32.000000MHz 1x ST93C46 EEPROM ROMs 12x TMS27C040 1x GAL16V8QS 2x GAL22V10 Note 1x JAMMA connector 1x VGA connector - Used to link 2 PCBs together 2x trimmer (volume) ---- uses a blitter for the gfx, this is not fully understood... level 5 interrupt = raster interrupt, used for road level 3 interrupt = vblank interrupt level 1 interrupt = blitter interrupt Blitter data foramt ( offset in words, offset in bytes, offset inside ram data table ) fedcba9876543210 0 0 0 --------76543210 dest_x0 bits 0-7 76543210-------- src_x0 bits 0-7 1 2 2 --------76543210 dest_x1 bits 0-7 2 4 4 --------76543210 dest_y0 bits 0-7 76543210-------- src_y0 bits 0-7 3 6 6 --------76543210 dest_y1 bits 0-7 4 8 5 a 6 c 8 ??------???????? image flags (directly copied from image info table, page and ?) --3210---------- image page -------8-------- src_x0 bit 8 ------8--------- src_y0 bit 8 7 e a ????????--?----- flags ---------------X X direction (src?) --------------Y- Y direction (src?) ---------8------ dest_x0 bit 8 --------8------- dest_y0 bit 8 -----------L---- dest layer ------------??-- unknown bits, set usually when rendering target = bitmap layer 8 10 c -------5-------- x scale data1 bit 5 ------5--------- y scale data1 bit 5 -----5---------- x scale data2 bit 5 ----5----------- y scala data2 bit 5 ---D------------ x scale >200% --D------------- y scale >200% -x-------------- X direction (dest?) Y--------------- Y direction (dest?) ---------8------ scroll x bit 8 --------8------- scroll y bit 8 ----------?----- set for road ? buffer num (is there double buffering ? or two bitmap layers?) 9 12 e ---------------H x scale < 50% --------------H- y scale < 50% -------------8-- dest_x1 bit 8 ------------8--- dest_y1 bit 8 a 14 10 ---43210-------- x scale data1 bits 0-4 -4-------------- y scale data1 bit 4 --------76543210 scroll x of bitmap layer b 16 12 ---43210-------- x scale data2 bits 0-4 10-------------- y scale data1 bits 0-1 --------76543210 scroll y of bitmap layer c 18 14 ---43210-------- y scale data2 bits 0-4 32-------------- y scale data1 bits 2-3 d 1a e 1c f 1e X Scale Table: 76543210 ---ABCDE ---FGHIJ -------- ---K-L-M -------N Y Scale Table: 76543210 -A------ DE------ BC-FGHIJ --K-L-M- ------N- BITS ABCDE = DATA1 (0-31) BITS FGHIJ = DATA2 (0-31) BIT K - ( scale > 200% ) ? 1 : 0 BIT L - ( DATA2 != 0) ? 1 : 0 (or DATA2 MSB) BIT M - ( DATA1 != 0) ? 1 : 0 (or DATA1 MSB) BIT N - ( scale < 50% ) ? 1 : 0 */ #include "emu.h" #include "cpu/m68000/m68000.h" #include "machine/adc0808.h" #include "machine/eepromser.h" #include "machine/gen_latch.h" #include "machine/timer.h" #include "sound/dac.h" #include "sound/volt_reg.h" #include "video/ramdac.h" #include "emupal.h" #include "screen.h" #include "speaker.h" static const int ZOOM_TABLE_SIZE=1<<14; static const int NUM_SCANLINES=256-8; static const int NUM_VBLANK_LINES=8; static const int LAYER_BG=0; static const int LAYER_FG=1; static const int NUM_COLORS=256; struct scroll_info { int32_t x,y,unkbits; }; class wheelfir_state : public driver_device { public: wheelfir_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_subcpu(*this, "subcpu"), m_eeprom(*this, "eeprom"), m_screen(*this, "screen"), m_palette(*this, "palette"), m_adc_eoc(0) { } void wheelfir(machine_config &config); DECLARE_READ_LINE_MEMBER(adc_eoc_r); protected: virtual void machine_start() override; virtual void video_start() override; private: required_device m_maincpu; required_device m_subcpu; required_device m_eeprom; required_device m_screen; required_device m_palette; std::unique_ptr m_zoom_table; std::unique_ptr m_blitter_data; std::unique_ptr m_scanlines; int32_t m_direct_write_x0; int32_t m_direct_write_x1; int32_t m_direct_write_y0; int32_t m_direct_write_y1; int32_t m_direct_write_idx; int16_t m_scanline_cnt; std::unique_ptr m_tmp_bitmap[2]; int32_t get_scale(int32_t index) { while(index=0) { return m_zoom_table[index]; } ++index; } return 0; } DECLARE_WRITE16_MEMBER(wheelfir_scanline_cnt_w); DECLARE_WRITE16_MEMBER(wheelfir_blit_w); DECLARE_WRITE16_MEMBER(wheelfir_7c0000_w); DECLARE_READ16_MEMBER(wheelfir_7c0000_r); DECLARE_WRITE16_MEMBER(wheelfir_snd_w); DECLARE_READ16_MEMBER(wheelfir_snd_r); DECLARE_WRITE16_MEMBER(coin_cnt_w); DECLARE_WRITE_LINE_MEMBER(adc_eoc_w); uint32_t screen_update_wheelfir(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(screen_vblank_wheelfir); TIMER_DEVICE_CALLBACK_MEMBER(scanline_timer_callback); void ramdac_map(address_map &map); void wheelfir_main(address_map &map); void wheelfir_sub(address_map &map); int m_adc_eoc; }; WRITE16_MEMBER(wheelfir_state::wheelfir_scanline_cnt_w) { COMBINE_DATA(&m_scanline_cnt); } WRITE16_MEMBER(wheelfir_state::wheelfir_blit_w) { COMBINE_DATA(&m_blitter_data[offset]); if(!ACCESSING_BITS_8_15 && offset==0x6) //LSB only! { int x,y; int direct_width=m_direct_write_x1-m_direct_write_x0+1; int direct_height=m_direct_write_y1-m_direct_write_y0+1; int sixdat = data&0xff; if(direct_width>0 && direct_height>0) { x= m_direct_write_idx % direct_width; y = (m_direct_write_idx / direct_width) %direct_height; x+=m_direct_write_x0; y+=m_direct_write_y0; if(x<512 && y <512) { m_tmp_bitmap[LAYER_BG]->pix16(y, x) = sixdat; } } ++m_direct_write_idx; return; } if(offset==0xf && data==0xffff) { m_maincpu->set_input_line(1, HOLD_LINE); { uint8_t *rom = memregion("gfx1")->base(); int width = m_screen->width(); int height = m_screen->height(); int src_x0=(m_blitter_data[0]>>8)+((m_blitter_data[6]&0x100)?256:0); int src_y0=(m_blitter_data[2]>>8)+((m_blitter_data[6]&0x200)?256:0); int dst_x0=(m_blitter_data[0]&0xff)+((m_blitter_data[7]&0x40)?256:0); int dst_y0=(m_blitter_data[2]&0xff)+((m_blitter_data[7]&0x80)?256:0); int dst_x1=(m_blitter_data[1]&0xff)+((m_blitter_data[9]&4)?256:0); int dst_y1=(m_blitter_data[3]&0xff)+((m_blitter_data[9]&8)?256:0); int x_dst_step=(m_blitter_data[7]&0x1)?1:-1; int y_dst_step=(m_blitter_data[7]&0x2)?1:-1; int x_src_step=(m_blitter_data[8]&0x4000)?1:-1; int y_src_step=(m_blitter_data[8]&0x8000)?1:-1; int page=((m_blitter_data[6])>>10)*0x40000; if(page>=0x400000) /* src set to unav. page before direct write to the framebuffer */ { m_direct_write_x0=dst_x0; m_direct_write_x1=dst_x1; m_direct_write_y0=dst_y0; m_direct_write_y1=dst_y1; m_direct_write_idx=0; } if(x_dst_step<0) { if(dst_x0<=dst_x1) { return; } } else { if(dst_x0>=dst_x1) { return; } } if(y_dst_step<0) { if(dst_y0<=dst_y1) { return; } } else { if(dst_y0>=dst_y1) { return; } } //additional checks int d1, d2, hflag, dflag, index; d1=((m_blitter_data[0x0a]&0x1f00)>>8); d2=((m_blitter_data[0x0b]&0x1f00)>>8); d1|=((m_blitter_data[0x8]&0x100)>>3); d2|=((m_blitter_data[0x8]&0x400)>>5); hflag=(m_blitter_data[0x9]&0x1)?1:0; dflag=(m_blitter_data[0x8]&0x1000)?1:0; index=d1|(d2<<6)|(hflag<<12)|(dflag<<13); float scale_x=get_scale(index); d1=((m_blitter_data[0x0b]&0xc000)>>14) | ((m_blitter_data[0x0c]&0xc000)>>12) | ((m_blitter_data[0x0a]&0x4000)>>10); d2=((m_blitter_data[0x0c]&0x1f00)>>8); d1|=((m_blitter_data[0x8]&0x200)>>4); d2|=((m_blitter_data[0x8]&0x800)>>6); hflag=(m_blitter_data[0x9]&0x2)?1:0; dflag=(m_blitter_data[0x8]&0x2000)?1:0; index=d1|(d2<<6)|(hflag<<12)|(dflag<<13); float scale_y=get_scale(index); if(scale_x==0 || scale_y==0) return; float scale_x_step=100.f/scale_x; float scale_y_step=100.f/scale_y; int x,y; float idx_x,idx_y; int vpage=LAYER_FG; if(m_blitter_data[0x7]&0x10) { vpage=LAYER_BG; /* printf("%s bg -> %d %d %d %d %d %d @ %x\n",machine().describe_context().c_str(), dst_x0,dst_y0, dst_x1,dst_y1, dst_x1-dst_x0, dst_y1-dst_y0); for(int i=0;i<16;++i) { printf("%x = %.4x\n",i,m_blitter_data[i]); } printf("\n"); */ } bool endx=false; bool endy=false; if(m_blitter_data[0x7]&0x0c) { //??? } for( x=dst_x0, idx_x=0 ; !endx;x+=x_dst_step, idx_x+=scale_x_step ) { endy=false; for( y=dst_y0, idx_y=0 ; !endy;y+=y_dst_step, idx_y+=scale_y_step) { endx=(x==dst_x1); endy=(y==dst_y1); int xx=src_x0+x_src_step*idx_x; int yy=src_y0+y_src_step*idx_y; int address=page+yy*512+xx; int pix = rom[address&(0x1000000-1)]; int screen_x=x; int screen_y=y; if(page>=0x400000) { //hack for clear if(screen_x >0 && screen_y >0 && screen_x < width && screen_y pix16(screen_y , screen_x ) =0; } } else { if (vpage == LAYER_FG) screen_y&=0xff; if(pix && screen_x >0 && screen_y >0 && screen_x < width && screen_y pix16(screen_y , screen_x ) = pix; } } } } } } } void wheelfir_state::video_start() { m_tmp_bitmap[0] = std::make_unique(512, 512); m_tmp_bitmap[1] = std::make_unique(512, 512); } uint32_t wheelfir_state::screen_update_wheelfir(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { bitmap.fill(0, cliprect); for(int y=cliprect.min_y; y < cliprect.max_y; y++) { uint16_t *source = &m_tmp_bitmap[LAYER_BG]->pix16(( (m_scanlines[y].y)&511)); uint16_t *dest = &bitmap.pix16(y); for (int x = cliprect.min_x; x < cliprect.max_x; x++) { dest[x] = source[ (x+(m_scanlines[y].x)) &511]; } } copybitmap_trans(bitmap, *m_tmp_bitmap[LAYER_FG], 0, 0, 0, 0, cliprect, 0); /* { m_tmp_bitmap[LAYER_BG]->fill(0, screen.visible_area()); } */ return 0; } WRITE_LINE_MEMBER(wheelfir_state::screen_vblank_wheelfir) { // rising edge if (state) { m_tmp_bitmap[LAYER_FG]->fill(0, m_screen->visible_area()); } } WRITE16_MEMBER(wheelfir_state::wheelfir_7c0000_w) { if (ACCESSING_BITS_8_15) { //{uint16_t x = data & 0xf800; static int y = -1; if (x != y) { y = x; printf("%s wheelfir_7c0000_w %d%d%d%d%d\n", machine().describe_context().c_str(), BIT(data, 15), BIT(data, 14), BIT(data, 13), BIT(data, 12), BIT(data, 11)); }} //{uint16_t x = data & 0x0700; static int y = -1; if (x != y) { y = x; printf("%s eeprom write %d%d%d\n", machine().describe_context().c_str(), BIT(data, 10), BIT(data, 9), BIT(data, 8)); }} m_eeprom->di_write(BIT(data, 9)); m_eeprom->clk_write(BIT(data, 8)); m_eeprom->cs_write(BIT(data, 10)); } if (ACCESSING_BITS_0_7) { /// alternates between ac & ff //printf("7c0001 %02x\n", data & 0xff); /* seems to be scanline width/2 (used for scanline int timing ? or real width of scanline ?) */ } } READ16_MEMBER(wheelfir_state::wheelfir_7c0000_r) { uint16_t data = 0; if (ACCESSING_BITS_8_15) { data |= (machine().rand() & 0x2000); // ? data |= m_eeprom->do_read() << 15; //printf("%s eeprom read %04x %04x\n", machine().describe_context().c_str(), data, mem_mask); } if (ACCESSING_BITS_0_7) { //printf("unknown read %04x %04x\n", data, mem_mask); } return data; } WRITE16_MEMBER(wheelfir_state::coin_cnt_w) { /* bits 0/1 coin counters */ machine().bookkeeping().coin_counter_w(0, data & 0x01); machine().bookkeeping().coin_counter_w(1, data & 0x02); } void wheelfir_state::wheelfir_main(address_map &map) { map(0x000000, 0x0fffff).rom(); map(0x200000, 0x20ffff).ram(); map(0x700000, 0x70001f).w(FUNC(wheelfir_state::wheelfir_blit_w)); map(0x720001, 0x720001).w("ramdac", FUNC(ramdac_device::index_w)); map(0x720003, 0x720003).w("ramdac", FUNC(ramdac_device::pal_w)); map(0x720005, 0x720005).w("ramdac", FUNC(ramdac_device::mask_w)); // word write? map(0x740000, 0x740001).w("soundlatch", FUNC(generic_latch_16_device::write)); map(0x760000, 0x760001).w(FUNC(wheelfir_state::coin_cnt_w)); map(0x780000, 0x78000f).rw("adc", FUNC(adc0808_device::data_r), FUNC(adc0808_device::address_offset_start_w)).umask16(0x00ff); map(0x7a0000, 0x7a0001).w(FUNC(wheelfir_state::wheelfir_scanline_cnt_w)); map(0x7c0000, 0x7c0001).rw(FUNC(wheelfir_state::wheelfir_7c0000_r), FUNC(wheelfir_state::wheelfir_7c0000_w)); map(0x7e0000, 0x7e0001).portr("P1"); map(0x7e0002, 0x7e0003).portr("P2"); } void wheelfir_state::wheelfir_sub(address_map &map) { map(0x000000, 0x0fffff).rom(); map(0x200000, 0x20ffff).ram(); map(0x780000, 0x780001).r("soundlatch", FUNC(generic_latch_16_device::read)); map(0x700000, 0x700001).w("ldac", FUNC(dac_word_interface::data_w)); map(0x740000, 0x740001).w("rdac", FUNC(dac_word_interface::data_w)); } static INPUT_PORTS_START( wheelfir ) PORT_START("P1") /* 16bit */ 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_UNUSED ) PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_NAME( "Test" ) PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_READ_LINE_DEVICE_MEMBER(DEVICE_SELF, wheelfir_state, adc_eoc_r) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("P2") /* 16bit */ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("STEERING") PORT_BIT(0xff, 0x80, IPT_PADDLE) PORT_INVERT PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_NAME("Steering Wheel") PORT_REVERSE PORT_START("ACCELERATOR") PORT_BIT(0xff, 0x00, IPT_PEDAL) PORT_INVERT PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_NAME("Accelerator Pedal") PORT_MINMAX(0x00, 0xff) PORT_REVERSE PORT_START("BRAKE") PORT_BIT(0xff, 0x00, IPT_PEDAL2) PORT_INVERT PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_NAME("Brake Pedal") PORT_MINMAX(0x00, 0xff) PORT_REVERSE INPUT_PORTS_END READ_LINE_MEMBER( wheelfir_state::adc_eoc_r ) { return m_adc_eoc; } WRITE_LINE_MEMBER( wheelfir_state::adc_eoc_w ) { m_adc_eoc = state; } TIMER_DEVICE_CALLBACK_MEMBER(wheelfir_state::scanline_timer_callback) { if(paramset_input_line(5, HOLD_LINE); // raster IRQ, changes scroll values for road } //m_screen->update_partial(param); } else { if(param==NUM_SCANLINES) /* vblank */ { m_maincpu->set_input_line(3, HOLD_LINE); } } m_subcpu->set_input_line(1, HOLD_LINE); } void wheelfir_state::machine_start() { m_zoom_table = std::make_unique(ZOOM_TABLE_SIZE); m_blitter_data = std::make_unique(16); m_scanlines = std::make_unique(NUM_SCANLINES+NUM_VBLANK_LINES); for(int i=0;i<(ZOOM_TABLE_SIZE);++i) { m_zoom_table[i]=-1; } uint16_t *ROM = (uint16_t *)memregion("maincpu")->base(); for(int j=0;j<400;++j) { int i=j<<3; int d1=ROM[0x200+i]&0x1f; int d0=(ROM[0x200+i]>>8)&0x1f; d0|=(ROM[0x200+1+i]&1)?0x20:0; d1|=(ROM[0x200+1+i]&4)?0x20:0; int hflag=(ROM[0x200+2+i]&0x100)?1:0; int dflag=(ROM[0x200+1+i]&0x10)?1:0; int index=d0|(d1<<6)|(hflag<<12)|(dflag<<13); m_zoom_table[index]=j; } } void wheelfir_state::ramdac_map(address_map &map) { map(0x000, 0x3ff).rw("ramdac", FUNC(ramdac_device::ramdac_pal_r), FUNC(ramdac_device::ramdac_rgb888_w)); } void wheelfir_state::wheelfir(machine_config &config) { M68000(config, m_maincpu, 32000000/2); m_maincpu->set_addrmap(AS_PROGRAM, &wheelfir_state::wheelfir_main); M68000(config, m_subcpu, 32000000/2); m_subcpu->set_addrmap(AS_PROGRAM, &wheelfir_state::wheelfir_sub); //config.set_maximum_quantum(attotime::from_hz(12000)); adc0808_device &adc(ADC0808(config, "adc", 500000)); // unknown clock adc.eoc_ff_callback().set(FUNC(wheelfir_state::adc_eoc_w)); adc.in_callback<0>().set_ioport("STEERING"); adc.in_callback<1>().set_ioport("ACCELERATOR"); adc.in_callback<2>().set_ioport("BRAKE"); TIMER(config, "scan_timer").configure_scanline(FUNC(wheelfir_state::scanline_timer_callback), "screen", 0, 1); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_refresh_hz(60); m_screen->set_size(336, NUM_SCANLINES+NUM_VBLANK_LINES); m_screen->set_visarea(0,335, 0, NUM_SCANLINES-1); m_screen->set_screen_update(FUNC(wheelfir_state::screen_update_wheelfir)); m_screen->screen_vblank().set(FUNC(wheelfir_state::screen_vblank_wheelfir)); m_screen->set_palette(m_palette); PALETTE(config, m_palette).set_entries(NUM_COLORS); ramdac_device &ramdac(RAMDAC(config, "ramdac", 0, m_palette)); ramdac.set_addrmap(0, &wheelfir_state::ramdac_map); EEPROM_93C46_16BIT(config, "eeprom"); GENERIC_LATCH_16(config, "soundlatch"); /* sound hardware */ SPEAKER(config, "lspeaker").front_left(); SPEAKER(config, "rspeaker").front_right(); DAC_10BIT_R2R(config, "ldac", 0).add_route(ALL_OUTPUTS, "lspeaker", 1.0); // unknown DAC DAC_10BIT_R2R(config, "rdac", 0).add_route(ALL_OUTPUTS, "rspeaker", 1.0); // unknown DAC voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref")); vref.add_route(0, "ldac", 1.0, DAC_VREF_POS_INPUT); vref.add_route(0, "ldac", -1.0, DAC_VREF_NEG_INPUT); vref.add_route(0, "rdac", 1.0, DAC_VREF_POS_INPUT); vref.add_route(0, "rdac", -1.0, DAC_VREF_NEG_INPUT); } ROM_START( wheelfir ) ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */ ROM_LOAD16_BYTE( "tch1.u19", 0x00001, 0x80000, CRC(33bbbc67) SHA1(c2ecc0ab522ee442076ea7b9536aee6e1fad0540) ) ROM_LOAD16_BYTE( "tch2.u21", 0x00000, 0x80000, CRC(ed6b9e8a) SHA1(214c5aaf55963a219db33dd5d530492e09ad5e07) ) ROM_REGION( 0x100000, "subcpu", 0 ) /* 68000 Code + sound samples */ ROM_LOAD16_BYTE( "tch3.u83", 0x00001, 0x80000, CRC(43c014a6) SHA1(6c01a08dda204f36e8768795dd5d405576a49140) ) ROM_LOAD16_BYTE( "tch11.u65", 0x00000, 0x80000, CRC(fc894b2e) SHA1(ebe6d1adf889731fb6f53b4ce5f09c60e2aefb97) ) ROM_REGION( 0x1000000, "gfx1", ROMREGION_ERASE00 ) // 512x512 gfx pages ROM_LOAD( "tch4.u52", 0x000000, 0x80000, CRC(fe4bc2c7) SHA1(33a2ef79cb13f9e7e7d513915c6e13c4e7fe0188) ) ROM_LOAD( "tch5.u53", 0x080000, 0x80000, CRC(a38b9ca5) SHA1(083c9f700b9df1039fb553e918e205c6d32057ad) ) ROM_LOAD( "tch6.u54", 0x100000, 0x80000, CRC(2733ae6b) SHA1(ebd91e123b670159f79be19a552d1ae0c8a0faff) ) ROM_LOAD( "tch7.u55", 0x180000, 0x80000, CRC(6d98f27f) SHA1(d39f7f184abce645b9165b64e89e3b5354187eea) ) ROM_LOAD( "tch8.u56", 0x200000, 0x80000, CRC(22b661fe) SHA1(b6edf8e1e8b479ee8813502157615f54627dc7c1) ) ROM_LOAD( "tch9.u57", 0x280000, 0x80000, CRC(83c66de3) SHA1(50deaf3338d590340b928f891548c47ba8f3ca38) ) ROM_LOAD( "tch10.u58",0x300000, 0x80000, CRC(2036ed80) SHA1(910381e2ccdbc2d06f873021d8af02795d22f595) ) ROM_LOAD( "tch12.u59",0x380000, 0x80000, CRC(cce2e675) SHA1(f3d8916077b2e057169d0f254005cd959789a3b3) ) ROM_REGION16_BE(0x80, "eeprom", 0) ROM_LOAD16_WORD_SWAP( "eeprom", 0x000000, 0x000080, CRC(961e4bc9) SHA1(8944504bf56a272e9aa08185e73c6b4212d52383) ) ROM_END GAME( 199?, wheelfir, 0, wheelfir, wheelfir, wheelfir_state, empty_init, ROT0, "TCH", "Wheels & Fire", MACHINE_IMPERFECT_GRAPHICS)