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+// 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 )