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Diffstat (limited to 'src/mame/drivers/mirax.cpp')
-rw-r--r-- | src/mame/drivers/mirax.cpp | 584 |
1 files changed, 584 insertions, 0 deletions
diff --git a/src/mame/drivers/mirax.cpp b/src/mame/drivers/mirax.cpp new file mode 100644 index 00000000000..2bbeb94fdb7 --- /dev/null +++ b/src/mame/drivers/mirax.cpp @@ -0,0 +1,584 @@ +// license:BSD-3-Clause +// copyright-holders:Angelo Salese, Tomasz Slanina, Olivier Galibert +/* +**************************************************** +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" + furthermore, 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_maincpu(*this, "maincpu"), + m_audiocpu(*this, "audiocpu"), + m_gfxdecode(*this, "gfxdecode"), + m_palette(*this, "palette"), + m_videoram(*this, "videoram"), + m_spriteram(*this, "spriteram"), + m_colorram(*this, "colorram") { } + + required_device<cpu_device> m_maincpu; + required_device<cpu_device> m_audiocpu; + required_device<gfxdecode_device> m_gfxdecode; + required_device<palette_device> m_palette; + + required_shared_ptr<UINT8> m_videoram; + required_shared_ptr<UINT8> m_spriteram; + required_shared_ptr<UINT8> 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(sound_cmd_w); + DECLARE_WRITE8_MEMBER(coin_counter0_w); + DECLARE_WRITE8_MEMBER(coin_counter1_w); + DECLARE_WRITE8_MEMBER(flip_screen_w); + DECLARE_WRITE8_MEMBER(ay1_sel); + DECLARE_WRITE8_MEMBER(ay2_sel); + + DECLARE_DRIVER_INIT(mirax); + DECLARE_PALETTE_INIT(mirax); + virtual void machine_start(); + + UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + void draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 draw_flag); + void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect); + + INTERRUPT_GEN_MEMBER(vblank_irq); +}; + + +PALETTE_INIT_MEMBER(mirax_state, mirax) +{ + const UINT8 *color_prom = memregion("proms")->base(); + int i; + + for (i = 0;i < palette.entries();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_pen_color(i,rgb_t(r,g,b)); + } +} + + +void mirax_state::draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 draw_flag) +{ + gfx_element *gfx = m_gfxdecode->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 = m_videoram[32*y+x]; + int color = (m_colorram[x*2]<<8) | (m_colorram[(x*2)+1]); + int x_scroll = (color & 0xff00)>>8; + tile |= ((color & 0xe0)<<3); + + res_x = (m_flipscreen_x) ? 248-x*8 : x*8; + res_y = (m_flipscreen_y) ? 248-y*8+x_scroll : y*8-x_scroll; + wrapy = (m_flipscreen_y) ? -256 : 256; + + if((x <= 1 || x >= 30) ^ draw_flag) + { + gfx->opaque(bitmap,cliprect,tile,color & 7,(m_flipscreen_x),(m_flipscreen_y),res_x,res_y); + /* wrap-around */ + gfx->opaque(bitmap,cliprect,tile,color & 7,(m_flipscreen_x),(m_flipscreen_y),res_x,res_y+wrapy); + } + } + } +} + +void mirax_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + for(int count=0;count<0x200;count+=4) + { + int spr_offs,x,y,color,fx,fy; + + if(m_spriteram[count] == 0x00 || m_spriteram[count+3] == 0x00) + continue; + + spr_offs = (m_spriteram[count+1] & 0x3f); + color = m_spriteram[count+2] & 0x7; + fx = (m_flipscreen_x) ^ ((m_spriteram[count+1] & 0x40) >> 6); //<- guess + fy = (m_flipscreen_y) ^ ((m_spriteram[count+1] & 0x80) >> 7); + + spr_offs += (m_spriteram[count+2] & 0xe0)<<1; + spr_offs += (m_spriteram[count+2] & 0x10)<<5; + + y = (m_flipscreen_y) ? m_spriteram[count] : 0x100 - m_spriteram[count] - 16; + x = (m_flipscreen_x) ? 240 - m_spriteram[count+3] : m_spriteram[count+3]; + + m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,spr_offs,color,fx,fy,x,y,0); + } +} + +UINT32 mirax_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + draw_tilemap(bitmap,cliprect,1); + draw_sprites(bitmap,cliprect); + draw_tilemap(bitmap,cliprect,0); + return 0; +} + + +void mirax_state::machine_start() +{ + m_nAyCtrl = 0x00; + + save_item(NAME(m_nAyCtrl)); + save_item(NAME(m_nmi_mask)); + save_item(NAME(m_flipscreen_x)); + save_item(NAME(m_flipscreen_y)); +} + +WRITE8_MEMBER(mirax_state::audio_w) +{ + m_nAyCtrl=offset; +} + +WRITE8_MEMBER(mirax_state::ay1_sel) +{ + ay8910_device *ay8910 = machine().device<ay8910_device>("ay1"); + ay8910->address_w(space,0,m_nAyCtrl); + ay8910->data_w(space,0,data); +} + +WRITE8_MEMBER(mirax_state::ay2_sel) +{ + ay8910_device *ay8910 = machine().device<ay8910_device>("ay2"); + ay8910->address_w(space,0,m_nAyCtrl); + ay8910->data_w(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::sound_cmd_w) +{ + soundlatch_byte_w(space, 0, data & 0xff); + m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE); +} + + +WRITE8_MEMBER(mirax_state::coin_counter0_w) +{ + coin_counter_w(machine(), 0, data & 1); +} + +WRITE8_MEMBER(mirax_state::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::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(coin_counter0_w) + AM_RANGE(0xf501, 0xf501) AM_WRITE(nmi_mask_w) + AM_RANGE(0xf502, 0xf502) AM_WRITE(coin_counter1_w) // only used in 'miraxa' - see notes + AM_RANGE(0xf506, 0xf507) AM_WRITE(flip_screen_w) + AM_RANGE(0xf800, 0xf800) AM_WRITE(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::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, 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) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD("palette", 0x40) + MCFG_PALETTE_INIT_OWNER(mirax_state, mirax) + MCFG_GFXDECODE_ADD("gfxdecode", "palette", 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)", MACHINE_SUPPORTS_SAVE ) +GAME( 1985, miraxa, mirax, mirax, miraxa, mirax_state, mirax, ROT90, "Current Technologies", "Mirax (set 2)", MACHINE_SUPPORTS_SAVE ) |