/* **************************************************** Mirax (C)1985 Current Technologies driver by Tomasz Slanina analog[AT]op[DOT]pl Angelo Salese Olivier Galibert TODO: - sound ports are a mystery (PC=0x02e0) - video offsets? - score / credits display should stay above the sprites? ==================================================== CPU: Ceramic potted module, Z80C Sound: AY-3-8912 (x2) RAM: 74S201, 74S201 (x6), 2148 (x6), 2114 (x2), 58725 (x2), 6116 PROMS: 82S123 (x2) XTAL: 12 MHz Here comes a high energy space game of its own kind. Mirax(TM) * First person perspective * Fully integrated game play. * Continually changing 3-D graphics plus powerful sound effects. HOW TO PLAY 1. Your goal is to terminate Mirax City - a giant enemy central station shown at stage 10. 2. Destroy all enemy objects (air or ground) as many as you can. Avoid indestructible building blocks. 3. Shooting a group of ground targets causes satellites to rise. 4. Enemy flagship appears after a wave of far ground vessels completely destroyed. 5. Hitting flagship puts you into power shooting mode - no fire button required. 6. Bonus flag is given for each flagship hit. 5 or 8 flags award you an extra fighter. 7. Use joystick to take sight before firing. Pinouts Parts Solder 1 Gnd Gnd 2 Gnd Gnd 3 Gnd Video gnd 4 Gnd Gnd 5 6 7 8 9 Coin 1 Video sync 10 Up 11 Fire 12 Down 13 start1 start2 14 left 15 right 16 Video green 17 Video blue 18 Video red 19 Speaker- Speaker+ 20 +5 +5 21 +5 +5 22 +12 +12 Stephh's notes (based on the games Z80 code and some tests) : 1) 'mirax' - Screen flipping settings (DSW1 bit 3) are only tested AFTER the ROM/RAM checks; so the first texts may be upside down related to screen orientation (ingame bug). - Coin A and Coin B use the same coinage based on DSW1 bits 0 and 1. Furthermore, they share the same coin counter at 0xf500. - When reaching 10th "boss" (level 100), the game will consider that you're on level 1 : it will display "STAGE 1 - MIRAX CITY: 90000 MILES" on "presentation" screen and "STAGE 1" at the bottom right when fighting the "boss". Once you have defeated it, you'll go back to normal stage 2 : it will display "STAGE 2 - MIRAX CITY: 80000 MILES" on "presentation" screen and "STAGE 2" at the bottom right (ingame bug). 2) 'miraxa' - Screen flipping settings (DSW1 bit 3) are only BEFORE the ROM/RAM checks due to additional code at 0x0200, so the first texts always fit screen orientation. - Coin A and Coin B use different coinages even if both are based on DSW1 bits 0 and 1. There are 2 coin counters : Coin A at 0xf500 and Coin B at 0xf502. - Other noticeable differences with 'mirax' : * different lives settings (DSW1 bits 4 and 5) * different bonus lives settings (DSW2 bits 0 and 1) * different stages names : . stages 1 to 10 : "LUXORI" instead of "MIRAX" . stages 71 to 80 : "DESCOM" instead of "DESBOM" futhermore, for all stages, it's written "UNIT" instead of "CITY" - Same ingame bug as in 'mirax' when you reach level 100 (of course, it will display "LUXORI UNIT" instead of "MIRAX CITY" on "presentation" screen). ************************************************ */ #include "emu.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" class mirax_state : public driver_device { public: mirax_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_videoram(*this, "videoram"), m_spriteram(*this, "spriteram"), m_colorram(*this, "colorram"){ } required_shared_ptr m_videoram; required_shared_ptr m_spriteram; required_shared_ptr m_colorram; UINT8 m_nAyCtrl; UINT8 m_nmi_mask; UINT8 m_flipscreen_x; UINT8 m_flipscreen_y; DECLARE_WRITE8_MEMBER(audio_w); DECLARE_WRITE8_MEMBER(nmi_mask_w); DECLARE_WRITE8_MEMBER(mirax_sound_cmd_w); DECLARE_WRITE8_MEMBER(mirax_coin_counter0_w); DECLARE_WRITE8_MEMBER(mirax_coin_counter1_w); DECLARE_WRITE8_MEMBER(mirax_flip_screen_w); DECLARE_WRITE8_MEMBER(ay1_sel); DECLARE_WRITE8_MEMBER(ay2_sel); DECLARE_DRIVER_INIT(mirax); virtual void palette_init(); UINT32 screen_update_mirax(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); INTERRUPT_GEN_MEMBER(mirax_vblank_irq); }; void mirax_state::palette_init() { const UINT8 *color_prom = machine().root_device().memregion("proms")->base(); int i; for (i = 0;i < machine().total_colors();i++) { int bit0,bit1,bit2,r,g,b; /* red component */ bit0 = (color_prom[i] >> 0) & 0x01; bit1 = (color_prom[i] >> 1) & 0x01; bit2 = (color_prom[i] >> 2) & 0x01; r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* green component */ bit0 = (color_prom[i] >> 3) & 0x01; bit1 = (color_prom[i] >> 4) & 0x01; bit2 = (color_prom[i] >> 5) & 0x01; g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* blue component */ bit0 = (color_prom[i] >> 6) & 0x01; bit1 = (color_prom[i] >> 7) & 0x01; b = 0x4f * bit0 + 0xa8 * bit1; palette_set_color(machine(),i,MAKE_RGB(r,g,b)); } } static void draw_tilemap(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 draw_flag) { mirax_state *state = machine.driver_data(); gfx_element *gfx = machine.gfx[0]; int y,x; int res_x,res_y,wrapy; for (y=0;y<32;y++) { for (x=0;x<32;x++) { int tile = state->m_videoram[32*y+x]; int color = (state->m_colorram[x*2]<<8) | (state->m_colorram[(x*2)+1]); int x_scroll = (color & 0xff00)>>8; tile |= ((color & 0xe0)<<3); res_x = (state->m_flipscreen_x) ? 248-x*8 : x*8; res_y = (state->m_flipscreen_y) ? 248-y*8+x_scroll : y*8-x_scroll; wrapy = (state->m_flipscreen_y) ? -256 : 256; if((x <= 1 || x >= 30) ^ draw_flag) { drawgfx_opaque(bitmap,cliprect,gfx,tile,color & 7,(state->m_flipscreen_x),(state->m_flipscreen_y),res_x,res_y); /* wrap-around */ drawgfx_opaque(bitmap,cliprect,gfx,tile,color & 7,(state->m_flipscreen_x),(state->m_flipscreen_y),res_x,res_y+wrapy); } } } } static void draw_sprites(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect) { mirax_state *state = machine.driver_data(); UINT8 *spriteram = state->m_spriteram; int count; for(count=0;count<0x200;count+=4) { int spr_offs,x,y,color,fx,fy; if(spriteram[count] == 0x00 || spriteram[count+3] == 0x00) continue; spr_offs = (spriteram[count+1] & 0x3f); color = spriteram[count+2] & 0x7; fx = (state->m_flipscreen_x) ^ ((spriteram[count+1] & 0x40) >> 6); //<- guess fy = (state->m_flipscreen_y) ^ ((spriteram[count+1] & 0x80) >> 7); spr_offs += (spriteram[count+2] & 0xe0)<<1; spr_offs += (spriteram[count+2] & 0x10)<<5; y = (state->m_flipscreen_y) ? spriteram[count] : 0x100 - spriteram[count] - 16; x = (state->m_flipscreen_x) ? 240 - spriteram[count+3] : spriteram[count+3]; drawgfx_transpen(bitmap,cliprect,machine.gfx[1],spr_offs,color,fx,fy,x,y,0); } } UINT32 mirax_state::screen_update_mirax(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { draw_tilemap(machine(),bitmap,cliprect,1); draw_sprites(machine(),bitmap,cliprect); draw_tilemap(machine(),bitmap,cliprect,0); return 0; } static SOUND_START(mirax) { mirax_state *state = machine.driver_data(); state->m_nAyCtrl = 0x00; } WRITE8_MEMBER(mirax_state::audio_w) { m_nAyCtrl=offset; } WRITE8_MEMBER(mirax_state::ay1_sel) { device_t *device = machine().device("ay1"); ay8910_address_w(device,space,0,m_nAyCtrl); ay8910_data_w(device,space,0,data); } WRITE8_MEMBER(mirax_state::ay2_sel) { device_t *device = machine().device("ay2"); ay8910_address_w(device,space,0,m_nAyCtrl); ay8910_data_w(device,space,0,data); } WRITE8_MEMBER(mirax_state::nmi_mask_w) { m_nmi_mask = data & 1; if(data & 0xfe) printf("Warning: %02x written at $f501\n",data); } WRITE8_MEMBER(mirax_state::mirax_sound_cmd_w) { soundlatch_byte_w(space, 0, data & 0xff); machine().device("audiocpu")->execute().set_input_line(INPUT_LINE_NMI, PULSE_LINE); } WRITE8_MEMBER(mirax_state::mirax_coin_counter0_w) { coin_counter_w(machine(), 0, data & 1); } WRITE8_MEMBER(mirax_state::mirax_coin_counter1_w) { coin_counter_w(machine(), 1, data & 1); } /* One address flips X, the other flips Y, but I can't tell which is which - Since the value is the same for the 2 addresses, it doesn't really matter */ WRITE8_MEMBER(mirax_state::mirax_flip_screen_w) { if (offset == 0) m_flipscreen_x = data & 0x01; if (offset == 1) m_flipscreen_y = data & 0x01; } static ADDRESS_MAP_START( mirax_main_map, AS_PROGRAM, 8, mirax_state ) AM_RANGE(0x0000, 0xbfff) AM_ROM AM_RANGE(0xc800, 0xd7ff) AM_RAM AM_RANGE(0xe000, 0xe3ff) AM_RAM AM_SHARE("videoram") AM_RANGE(0xe800, 0xe9ff) AM_RAM AM_SHARE("spriteram") AM_RANGE(0xea00, 0xea3f) AM_RAM AM_SHARE("colorram") //per-column color + bank bits for the videoram AM_RANGE(0xf000, 0xf000) AM_READ_PORT("P1") AM_RANGE(0xf100, 0xf100) AM_READ_PORT("P2") AM_RANGE(0xf200, 0xf200) AM_READ_PORT("DSW1") AM_RANGE(0xf300, 0xf300) AM_READNOP //watchdog? value is always read then discarded AM_RANGE(0xf400, 0xf400) AM_READ_PORT("DSW2") AM_RANGE(0xf500, 0xf500) AM_WRITE(mirax_coin_counter0_w) AM_RANGE(0xf501, 0xf501) AM_WRITE(nmi_mask_w) AM_RANGE(0xf502, 0xf502) AM_WRITE(mirax_coin_counter1_w) // only used in 'miraxa' - see notes AM_RANGE(0xf506, 0xf507) AM_WRITE(mirax_flip_screen_w) AM_RANGE(0xf800, 0xf800) AM_WRITE(mirax_sound_cmd_w) // AM_RANGE(0xf900, 0xf900) //sound cmd mirror? ack? ADDRESS_MAP_END static ADDRESS_MAP_START( mirax_sound_map, AS_PROGRAM, 8, mirax_state ) AM_RANGE(0x0000, 0x1fff) AM_ROM AM_RANGE(0x8000, 0x8fff) AM_RAM AM_RANGE(0xa000, 0xa000) AM_READ(soundlatch_byte_r) AM_RANGE(0xe000, 0xe000) AM_WRITENOP AM_RANGE(0xe001, 0xe001) AM_WRITENOP AM_RANGE(0xe003, 0xe003) AM_WRITE(ay1_sel) //1st ay ? AM_RANGE(0xe400, 0xe400) AM_WRITENOP AM_RANGE(0xe401, 0xe401) AM_WRITENOP AM_RANGE(0xe403, 0xe403) AM_WRITE(ay2_sel) //2nd ay ? AM_RANGE(0xf900, 0xf9ff) AM_WRITE(audio_w) ADDRESS_MAP_END /* verified from Z80 code */ static INPUT_PORTS_START( mirax ) /* up/down directions are trusted according of the continue screen */ PORT_START("P1") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START1 ) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_START("P2") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_COCKTAIL PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 ) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_COCKTAIL PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_COCKTAIL PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_COCKTAIL PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("DSW1") PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) ) PORT_DIPNAME( 0x04, 0x00, DEF_STR( Cabinet ) ) PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) PORT_DIPSETTING( 0x04, DEF_STR( Cocktail ) ) PORT_DIPNAME( 0x08, 0x00, DEF_STR( Flip_Screen ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x08, DEF_STR( On ) ) PORT_DIPNAME( 0x30, 0x00, DEF_STR( Lives ) ) PORT_DIPSETTING( 0x30, "2" ) PORT_DIPSETTING( 0x00, "3" ) PORT_DIPSETTING( 0x10, "4" ) PORT_DIPSETTING( 0x20, "5" ) PORT_DIPUNUSED( 0x40, IP_ACTIVE_HIGH ) PORT_DIPUNUSED( 0x80, IP_ACTIVE_HIGH ) PORT_START("DSW2") PORT_DIPNAME( 0x01, 0x00, DEF_STR( Bonus_Life ) ) /* table at 0x11b5 (2 * 3 * 2 bytes) */ PORT_DIPSETTING( 0x00, "30k 80k 150k" ) PORT_DIPSETTING( 0x01, "900k 950k 990k" ) PORT_DIPNAME( 0x02, 0x00, "Flags for Extra Life" ) PORT_DIPSETTING( 0x00, "5" ) PORT_DIPSETTING( 0x02, "8" ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Demo_Sounds ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x04, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Allow_Continue ) ) PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x08, DEF_STR( Yes ) ) /* this dip makes the game to behave like attract mode, even if you insert a coin */ PORT_DIPNAME( 0x10, 0x00, "Auto-Play Mode (Debug)" ) PORT_DIPSETTING( 0x00, DEF_STR( No ) ) PORT_DIPSETTING( 0x10, DEF_STR( Yes ) ) PORT_DIPNAME( 0x20, 0x00, DEF_STR( Difficulty ) ) PORT_DIPSETTING( 0x00, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x20, DEF_STR( Hard ) ) PORT_DIPUNUSED( 0x40, IP_ACTIVE_HIGH ) PORT_DIPUNUSED( 0x80, IP_ACTIVE_HIGH ) INPUT_PORTS_END /* verified from Z80 code */ static INPUT_PORTS_START( miraxa ) PORT_INCLUDE( mirax ) PORT_MODIFY("DSW1") PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x03, "A: 2C/1C - B: 12C/1C" ) PORT_DIPSETTING( 0x00, "A: 1C/1C - B: 6C/1C" ) PORT_DIPSETTING( 0x01, "A: 1C/2C - B: 3C/1C" ) PORT_DIPSETTING( 0x02, "A: 1C/3C - B: 2C/1C" ) PORT_DIPNAME( 0x30, 0x00, DEF_STR( Lives ) ) PORT_DIPSETTING( 0x00, "3" ) PORT_DIPSETTING( 0x10, "4" ) PORT_DIPSETTING( 0x20, "5" ) PORT_DIPSETTING( 0x30, "6" ) PORT_MODIFY("DSW2") PORT_DIPNAME( 0x01, 0x00, DEF_STR( Bonus_Life ) ) /* table at 0x1276 (2 * 3 * 2 bytes) */ PORT_DIPSETTING( 0x00, "30k 80k 150k" ) PORT_DIPSETTING( 0x01, "50k 100k 900k" ) INPUT_PORTS_END static const gfx_layout layout16 = { 16,16, RGN_FRAC(1,3), 3, { RGN_FRAC(2,3),RGN_FRAC(1,3),RGN_FRAC(0,3)}, { 0, 1, 2, 3, 4, 5, 6, 7 , 0+8*8,1+8*8,2+8*8,3+8*8,4+8*8,5+8*8,6+8*8,7+8*8}, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 0*8+8*8*2, 1*8+8*8*2, 2*8+8*8*2, 3*8+8*8*2, 4*8+8*8*2, 5*8+8*8*2, 6*8+8*8*2, 7*8+8*8*2}, 16*16 }; static const gfx_layout layout8 = { 8,8, RGN_FRAC(1,3), 3, { RGN_FRAC(2,3),RGN_FRAC(1,3),RGN_FRAC(0,3)}, { 0, 1, 2, 3, 4, 5, 6, 7}, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8}, 8*8 }; static GFXDECODE_START( mirax ) GFXDECODE_ENTRY( "gfx1", 0, layout8, 0, 8 ) GFXDECODE_ENTRY( "gfx2", 0, layout16, 0, 8 ) GFXDECODE_END INTERRUPT_GEN_MEMBER(mirax_state::mirax_vblank_irq) { if(m_nmi_mask) device.execute().set_input_line(INPUT_LINE_NMI, PULSE_LINE); } static MACHINE_CONFIG_START( mirax, mirax_state ) MCFG_CPU_ADD("maincpu", Z80, 12000000/4) // ceramic potted module, encrypted z80 MCFG_CPU_PROGRAM_MAP(mirax_main_map) MCFG_CPU_VBLANK_INT_DRIVER("screen", mirax_state, mirax_vblank_irq) MCFG_CPU_ADD("audiocpu", Z80, 12000000/4) MCFG_CPU_PROGRAM_MAP(mirax_sound_map) MCFG_CPU_PERIODIC_INT_DRIVER(mirax_state, irq0_line_hold, 4*60) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) MCFG_SCREEN_SIZE(256, 256) MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 1*8, 31*8-1) MCFG_SCREEN_UPDATE_DRIVER(mirax_state, screen_update_mirax) MCFG_PALETTE_LENGTH(0x40) MCFG_GFXDECODE(mirax) MCFG_SOUND_START(mirax) MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_ADD("ay1", AY8910, 12000000/4) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80) MCFG_SOUND_ADD("ay2", AY8910, 12000000/4) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80) MACHINE_CONFIG_END ROM_START( mirax ) ROM_REGION( 0xc000, "maincpu", ROMREGION_ERASE00 ) // put decrypted code there ROM_REGION( 0xc000, "data_code", 0 ) // encrypted code for the main cpu ROM_LOAD( "mxp5-42.rom", 0x0000, 0x4000, CRC(716410a0) SHA1(55171376e1e164b1d5e728789da6e04a3a33c172) ) ROM_LOAD( "mxr5-4v.rom", 0x4000, 0x4000, CRC(c9484fc3) SHA1(101c5e4b9d49d2424ad80970eb3bdb87949a9966) ) ROM_LOAD( "mxs5-4v.rom", 0x8000, 0x4000, CRC(e0085f91) SHA1(cf143b94048e1ebb5c899b94b500e193dfd42e18) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "mxr2-4v.rom", 0x0000, 0x2000, CRC(cd2d52dc) SHA1(0d4181dc68beac338f47a2065c7b755008877896) ) ROM_REGION( 0xc000, "gfx1", 0 ) ROM_LOAD( "mxe3-4v.rom", 0x0000, 0x4000, CRC(0cede01f) SHA1(c723dd8ee9dc06c94a7fe5d5b5bccc42e2181af1) ) ROM_LOAD( "mxh3-4v.rom", 0x4000, 0x4000, CRC(58221502) SHA1(daf5c508939b44616ca76308fc33f94d364ed587) ) ROM_LOAD( "mxk3-4v.rom", 0x8000, 0x4000, CRC(6dbc2961) SHA1(5880c28f1ef704fee2d625a42682c7d65613acc8) ) ROM_REGION( 0x18000, "gfx2", 0 ) ROM_LOAD( "mxe2-4v.rom", 0x04000, 0x4000, CRC(2cf5d8b7) SHA1(f66bce4d413a48f6ae07974870dc0f31eefa68e9) ) ROM_LOAD( "mxf2-4v.rom", 0x0c000, 0x4000, CRC(1f42c7fa) SHA1(33e56c6ddf7676a12f57de87ec740c6b6eb1cc8c) ) ROM_LOAD( "mxh2-4v.rom", 0x14000, 0x4000, CRC(cbaff4c6) SHA1(2dc4a1f51b28e98be0cfb5ab7576047c748b6728) ) ROM_LOAD( "mxf3-4v.rom", 0x00000, 0x4000, CRC(14b1ca85) SHA1(775a4c81a81b78490d45095af31e24c16886f0a2) ) ROM_LOAD( "mxi3-4v.rom", 0x08000, 0x4000, CRC(20fb2099) SHA1(da6bbd5d2218ba49b8ef98e7affdcab912f84ade) ) ROM_LOAD( "mxl3-4v.rom", 0x10000, 0x4000, CRC(918487aa) SHA1(47ba6914722a253f65c733b5edff4d15e73ea6c2) ) ROM_REGION( 0x0060, "proms", 0 ) ROM_LOAD( "mra3.prm", 0x0000, 0x0020, CRC(ae7e1a63) SHA1(f5596db77c1e352ef7845465db3e54e19cd5df9e) ) ROM_LOAD( "mrb3.prm", 0x0020, 0x0020, CRC(e3f3d0f5) SHA1(182b06c9db5bec1e3030f705247763bd2380ba83) ) ROM_LOAD( "mirax.prm", 0x0040, 0x0020, NO_DUMP ) // data ? encrypted roms for cpu1 ? ROM_END ROM_START( miraxa ) ROM_REGION( 0xc000, "maincpu", ROMREGION_ERASE00 ) // put decrypted code there ROM_REGION( 0xc000, "data_code", 0 ) // encrypted code for the main cpu ROM_LOAD( "mx_p5_43v.p5", 0x0000, 0x4000, CRC(87664903) SHA1(ccc11ecf0658e7af0db3229f60a16b1a44bd12bc) ) ROM_LOAD( "mx_r5_43v.r5", 0x4000, 0x4000, CRC(1ba4cd8e) SHA1(8fd22d3a4bca7c989382aaf7b08ac381a3566493) ) ROM_LOAD( "mx_s5_43v.s5", 0x8000, 0x4000, CRC(c58cc151) SHA1(0846e22f4da6d85c6dc29ff1472bc84b419b2289) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "mxr2-4v.rom", 0x0000, 0x2000, CRC(cd2d52dc) SHA1(0d4181dc68beac338f47a2065c7b755008877896) ) ROM_REGION( 0xc000, "gfx1", 0 ) ROM_LOAD( "mxe3-4v.rom", 0x0000, 0x4000, CRC(0cede01f) SHA1(c723dd8ee9dc06c94a7fe5d5b5bccc42e2181af1) ) ROM_LOAD( "mxh3-4v.rom", 0x4000, 0x4000, CRC(58221502) SHA1(daf5c508939b44616ca76308fc33f94d364ed587) ) ROM_LOAD( "mxk3-4v.rom", 0x8000, 0x4000, CRC(6dbc2961) SHA1(5880c28f1ef704fee2d625a42682c7d65613acc8) ) ROM_REGION( 0x18000, "gfx2", 0 ) ROM_LOAD( "mxe2-4v.rom", 0x04000, 0x4000, CRC(2cf5d8b7) SHA1(f66bce4d413a48f6ae07974870dc0f31eefa68e9) ) ROM_LOAD( "mxf2-4v.rom", 0x0c000, 0x4000, CRC(1f42c7fa) SHA1(33e56c6ddf7676a12f57de87ec740c6b6eb1cc8c) ) ROM_LOAD( "mxh2-4v.rom", 0x14000, 0x4000, CRC(cbaff4c6) SHA1(2dc4a1f51b28e98be0cfb5ab7576047c748b6728) ) ROM_LOAD( "mxf3-4v.rom", 0x00000, 0x4000, CRC(14b1ca85) SHA1(775a4c81a81b78490d45095af31e24c16886f0a2) ) ROM_LOAD( "mxi3-4v.rom", 0x08000, 0x4000, CRC(20fb2099) SHA1(da6bbd5d2218ba49b8ef98e7affdcab912f84ade) ) ROM_LOAD( "mxl3-4v.rom", 0x10000, 0x4000, CRC(918487aa) SHA1(47ba6914722a253f65c733b5edff4d15e73ea6c2) ) ROM_REGION( 0x0060, "proms", 0 ) ROM_LOAD( "mra3.prm", 0x0000, 0x0020, CRC(ae7e1a63) SHA1(f5596db77c1e352ef7845465db3e54e19cd5df9e) ) ROM_LOAD( "mrb3.prm", 0x0020, 0x0020, CRC(e3f3d0f5) SHA1(182b06c9db5bec1e3030f705247763bd2380ba83) ) ROM_END DRIVER_INIT_MEMBER(mirax_state,mirax) { UINT8 *DATA = memregion("data_code")->base(); UINT8 *ROM = memregion("maincpu")->base(); int i; for(i=0x0000;i<0x4000;i++) ROM[BITSWAP16(i, 15,14,13,12,11,10,9, 5,7,6,8, 4,3,2,1,0)] = (BITSWAP8(DATA[i], 1, 3, 7, 0, 5, 6, 4, 2) ^ 0xff); for(i=0x4000;i<0x8000;i++) ROM[BITSWAP16(i, 15,14,13,12,11,10,9, 5,7,6,8, 4,3,2,1,0)] = (BITSWAP8(DATA[i], 2, 1, 0, 6, 7, 5, 3, 4) ^ 0xff); for(i=0x8000;i<0xc000;i++) ROM[BITSWAP16(i, 15,14,13,12,11,10,9, 5,7,6,8, 4,3,2,1,0)] = (BITSWAP8(DATA[i], 1, 3, 7, 0, 5, 6, 4, 2) ^ 0xff); /* These values need to be initialised only once, not on every soft reset */ m_flipscreen_x = 0; m_flipscreen_y = 0; } GAME( 1985, mirax, 0, mirax, mirax, mirax_state, mirax, ROT90, "Current Technologies", "Mirax (set 1)", 0 ) GAME( 1985, miraxa, mirax, mirax, miraxa, mirax_state, mirax, ROT90, "Current Technologies", "Mirax (set 2)", 0 )