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Diffstat (limited to 'trunk/src/mame/drivers/magmax.c')
-rw-r--r--trunk/src/mame/drivers/magmax.c446
1 files changed, 446 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/magmax.c b/trunk/src/mame/drivers/magmax.c
new file mode 100644
index 00000000000..56693a9fee8
--- /dev/null
+++ b/trunk/src/mame/drivers/magmax.c
@@ -0,0 +1,446 @@
+/***************************************************************************
+
+MAGMAX
+(c)1985 NihonBussan Co.,Ltd.
+
+Driver by Takahiro Nogi (nogi@kt.rim.or.jp) 1999/11/05 -
+Additional tweaking by Jarek Burczynski
+
+
+Stephh's notes (based on the game M68000 code and some tests) :
+
+ - Player 1 Button 2 shall not exist per se, but pressing it speeds the game.
+ That's why I mapped it to a different key (F1) to avoid confusion.
+ It appears (as well as Player 2 Button 2) in the schematics though.
+ However I don't see it in the wiring connector page.
+ - DSW2 bit 8 is not referenced in the US manual and only has an effect
+ if you have EXACTLY 10 credits after you pressed any START button
+ (which means that you need to have 11 credits if you choose a 1 player game
+ or 12 credits if you choose a 2 players game).
+ When activated, you are giving infinite lives (in fact 0x60 = 60 lives)
+ for both players, you can still lose parts of the ship but not the main ship.
+ See code at 0x0001e6 (ships given at start) and 0x0044e6 (other stuff).
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/m68000/m68000.h"
+#include "sound/ay8910.h"
+#include "includes/magmax.h"
+
+
+static WRITE16_HANDLER( magmax_sound_w )
+{
+ magmax_state *state = space->machine().driver_data<magmax_state>();
+ if (ACCESSING_BITS_0_7)
+ {
+ state->m_sound_latch = (data & 0xff) << 1;
+ cputag_set_input_line(space->machine(), "audiocpu", 0, ASSERT_LINE);
+ }
+}
+
+static READ8_HANDLER( magmax_sound_irq_ack )
+{
+ cputag_set_input_line(space->machine(), "audiocpu", 0, CLEAR_LINE);
+ return 0;
+}
+
+static READ8_HANDLER( magmax_sound_r )
+{
+ magmax_state *state = space->machine().driver_data<magmax_state>();
+ return (state->m_sound_latch | state->m_LS74_q);
+}
+
+static WRITE8_DEVICE_HANDLER( ay8910_portB_0_w )
+{
+ magmax_state *state = device->machine().driver_data<magmax_state>();
+ /*bit 0 is input to CLR line of the LS74*/
+ state->m_LS74_clr = data & 1;
+ if (state->m_LS74_clr == 0)
+ state->m_LS74_q = 0;
+}
+
+static TIMER_CALLBACK( scanline_callback )
+{
+ magmax_state *state = machine.driver_data<magmax_state>();
+ int scanline = param;
+
+ /* bit 0 goes hi whenever line V6 from video part goes lo->hi */
+ /* that is when scanline is 64 and 192 accordingly */
+ if (state->m_LS74_clr != 0)
+ state->m_LS74_q = 1;
+
+ scanline += 128;
+ scanline &= 255;
+
+ state->m_interrupt_timer->adjust(machine.primary_screen->time_until_pos(scanline), scanline);
+}
+
+static MACHINE_START( magmax )
+{
+ magmax_state *state = machine.driver_data<magmax_state>();
+ /* Create interrupt timer */
+ state->m_interrupt_timer = machine.scheduler().timer_alloc(FUNC(scanline_callback));
+
+ /* Set up save state */
+ state_save_register_global(machine, state->m_sound_latch);
+ state_save_register_global(machine, state->m_LS74_clr);
+ state_save_register_global(machine, state->m_LS74_q);
+ state_save_register_global(machine, state->m_gain_control);
+}
+
+static MACHINE_RESET( magmax )
+{
+ magmax_state *state = machine.driver_data<magmax_state>();
+ state->m_interrupt_timer->adjust(machine.primary_screen->time_until_pos(64), 64);
+
+#if 0
+ {
+ int i;
+ for (i=0; i<9; i++)
+ logerror("SOUND Chan#%i name=%s\n", i, mixer_get_name(i) );
+ }
+#endif
+}
+
+
+
+static WRITE8_DEVICE_HANDLER( ay8910_portA_0_w )
+{
+ magmax_state *state = device->machine().driver_data<magmax_state>();
+ay8910_device *ay1 = device->machine().device<ay8910_device>("ay1");
+ay8910_device *ay2 = device->machine().device<ay8910_device>("ay2");
+ay8910_device *ay3 = device->machine().device<ay8910_device>("ay3");
+float percent;
+
+/*There are three AY8910 chips and four(!) separate amplifiers on the board
+* Each of AY channels is hardware mapped in following way:
+* amplifier 0 gain x 1.00 <- AY0 CHA
+* amplifier 1 gain x 1.00 <- AY0 CHB + AY0 CHC + AY1 CHA + AY1 CHB
+* amplifier 2 gain x 4.54 (150K/33K) <- AY1 CHC + AY2 CHA
+* amplifier 3 gain x 4.54 (150K/33K) <- AY2 CHB + AY2 CHC
+*
+* Each of the amps has its own analog cuircit:
+* amp0, amp1 and amp2 are different from each other; amp3 is the same as amp2
+*
+* Outputs of those amps are inputs to post amps, each having own cuircit
+* that is partially controlled by AY #0 port A.
+* PORT A BIT 0 - control postamp 0 (gain x10.0 | gain x 5.00)
+* PORT A BIT 1 - control postamp 1 (gain x4.54 | gain x 2.27)
+* PORT A BIT 2 - control postamp 2 (gain x1.00 | gain x 0.50)
+* PORT A BIT 3 - control postamp 3 (gain x1.00 | gain x 0.50)
+*
+* The "control" means assert/clear input pins on chip called 4066 (it is analog switch)
+* which results in volume gain (exactly 2 times).
+* I use mixer_set_volume() to emulate the effect.
+
+gain summary:
+port A control ON OFF
+amp0 = *1*10.0=10.0 *1*5.0 = 5.0
+amp1 = *1*4.54=4.54 *1*2.27 = 2.27
+amp2 = *4.54*1=4.54 *4.54*0.5= 2.27
+amp3 = *4.54*1=4.54 *4.54*0.5= 2.27
+*/
+
+/*
+bit0 - SOUND Chan#0 name=AY-3-8910 #0 Ch A
+
+bit1 - SOUND Chan#1 name=AY-3-8910 #0 Ch B
+bit1 - SOUND Chan#2 name=AY-3-8910 #0 Ch C
+bit1 - SOUND Chan#3 name=AY-3-8910 #1 Ch A
+bit1 - SOUND Chan#4 name=AY-3-8910 #1 Ch B
+
+bit2 - SOUND Chan#5 name=AY-3-8910 #1 Ch C
+bit2 - SOUND Chan#6 name=AY-3-8910 #2 Ch A
+
+bit3 - SOUND Chan#7 name=AY-3-8910 #2 Ch B
+bit3 - SOUND Chan#8 name=AY-3-8910 #2 Ch C
+*/
+
+ if (state->m_gain_control == (data & 0x0f))
+ return;
+
+ state->m_gain_control = data & 0x0f;
+
+ /*popmessage("gain_ctrl = %2x",data&0x0f);*/
+
+ percent = (state->m_gain_control & 1) ? 1.0 : 0.50;
+ ay1->set_output_gain(0, percent);
+//fixme: set_RC_filter(0,10000,100000000,0,10000); /* 10K, 10000pF = 0.010uF */
+
+ percent = (state->m_gain_control & 2) ? 0.45 : 0.23;
+ ay1->set_output_gain(1, percent);
+ ay1->set_output_gain(2, percent);
+ ay2->set_output_gain(0, percent);
+ ay2->set_output_gain(1, percent);
+//fixme: set_RC_filter(1,4700,100000000,0,4700); /* 4.7K, 4700pF = 0.0047uF */
+//fixme: set_RC_filter(2,4700,100000000,0,4700); /* 4.7K, 4700pF = 0.0047uF */
+//fixme: set_RC_filter(3,4700,100000000,0,4700); /* 4.7K, 4700pF = 0.0047uF */
+//fixme: set_RC_filter(4,4700,100000000,0,4700); /* 4.7K, 4700pF = 0.0047uF */
+
+ percent = (state->m_gain_control & 4) ? 0.45 : 0.23;
+ ay2->set_output_gain(2, percent);
+ ay3->set_output_gain(0, percent);
+
+ percent = (state->m_gain_control & 8) ? 0.45 : 0.23;
+ ay3->set_output_gain(1, percent);
+ ay3->set_output_gain(2, percent);
+}
+
+static WRITE16_HANDLER( magmax_vreg_w )
+{
+ magmax_state *state = space->machine().driver_data<magmax_state>();
+ /* VRAM CONTROL REGISTER */
+ /* bit0 - coin counter 1 */
+ /* bit1 - coin counter 2 */
+ /* bit2 - flip screen (INV) */
+ /* bit3 - page bank to be displayed (PG) */
+ /* bit4 - sprite bank LSB (DP0) */
+ /* bit5 - sprite bank MSB (DP1) */
+ /* bit6 - BG display enable (BE)*/
+ COMBINE_DATA(state->m_vreg);
+}
+
+
+
+static ADDRESS_MAP_START( magmax_map, AS_PROGRAM, 16 )
+ AM_RANGE(0x000000, 0x013fff) AM_ROM
+ AM_RANGE(0x018000, 0x018fff) AM_RAM
+ AM_RANGE(0x020000, 0x0207ff) AM_RAM AM_BASE_MEMBER(magmax_state, m_videoram)
+ AM_RANGE(0x028000, 0x0281ff) AM_RAM AM_BASE_SIZE_MEMBER(magmax_state, m_spriteram, m_spriteram_size)
+ AM_RANGE(0x030000, 0x030001) AM_READ_PORT("P1")
+ AM_RANGE(0x030002, 0x030003) AM_READ_PORT("P2")
+ AM_RANGE(0x030004, 0x030005) AM_READ_PORT("SYSTEM")
+ AM_RANGE(0x030006, 0x030007) AM_READ_PORT("DSW")
+ AM_RANGE(0x030010, 0x030011) AM_WRITE(magmax_vreg_w) AM_BASE_MEMBER(magmax_state, m_vreg)
+ AM_RANGE(0x030012, 0x030013) AM_WRITEONLY AM_BASE_MEMBER(magmax_state, m_scroll_x)
+ AM_RANGE(0x030014, 0x030015) AM_WRITEONLY AM_BASE_MEMBER(magmax_state, m_scroll_y)
+ AM_RANGE(0x03001c, 0x03001d) AM_WRITE(magmax_sound_w)
+ AM_RANGE(0x03001e, 0x03001f) AM_WRITENOP /* IRQ ack */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( magmax_sound_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x4000, 0x4000) AM_READ(magmax_sound_irq_ack)
+ AM_RANGE(0x6000, 0x67ff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( magmax_sound_io_map, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x01) AM_DEVWRITE("ay1", ay8910_address_data_w)
+ AM_RANGE(0x02, 0x03) AM_DEVWRITE("ay2", ay8910_address_data_w)
+ AM_RANGE(0x04, 0x05) AM_DEVWRITE("ay3", ay8910_address_data_w)
+ AM_RANGE(0x06, 0x06) AM_READ(magmax_sound_r)
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( magmax )
+ PORT_START("P1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SPECIAL ) PORT_NAME("Speed") PORT_CODE(KEYCODE_F1) PORT_TOGGLE /* see notes */
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("P2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* see notes */
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("SYSTEM")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SERVICE1 )
+ PORT_SERVICE( 0x20, IP_ACTIVE_LOW )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("DSW")
+ PORT_DIPNAME( 0x0003, 0x0003, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:1,2")
+ PORT_DIPSETTING( 0x0003, "3" )
+ PORT_DIPSETTING( 0x0002, "4" )
+ PORT_DIPSETTING( 0x0001, "5" )
+ PORT_DIPSETTING( 0x0000, "6" )
+ PORT_DIPNAME( 0x000c, 0x000c, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW1:3,4")
+ PORT_DIPSETTING( 0x000c, "30k 80k 50k+" )
+ PORT_DIPSETTING( 0x0008, "50k 120k 70k+" )
+ PORT_DIPSETTING( 0x0004, "70k 160k 90k+" )
+ PORT_DIPSETTING( 0x0000, "90k 200k 110k+" )
+ PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:5")
+ PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0010, DEF_STR( On ) )
+ PORT_DIPNAME( 0x0020, 0x0000, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x0000, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x0020, DEF_STR( Cocktail ) )
+ PORT_DIPUNUSED_DIPLOC( 0x0040, 0x0040, "SW1:7" )
+ PORT_DIPUNUSED_DIPLOC( 0x0080, 0x0080, "SW1:8" )
+ PORT_DIPNAME( 0x0300, 0x0300, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW2:1,2")
+ PORT_DIPSETTING( 0x0100, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0300, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x0200, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x0c00, 0x0c00, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW2:3,4")
+ PORT_DIPSETTING( 0x0000, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x0400, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x0c00, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0800, DEF_STR( 1C_6C ) )
+ PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:5")
+ PORT_DIPSETTING( 0x1000, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Hard ) )
+ PORT_DIPNAME( 0x2000, 0x2000, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW2:6") /* undocumented in the US manual */
+ PORT_DIPSETTING( 0x2000, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
+ PORT_DIPUNUSED_DIPLOC( 0x4000, 0x4000, "SW2:7" )
+ PORT_DIPNAME( 0x8000, 0x8000, "Debug Mode" ) PORT_DIPLOCATION("SW2:8") /* see notes */
+ PORT_DIPSETTING( 0x8000, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x0000, DEF_STR( Yes ) )
+INPUT_PORTS_END
+
+
+static const gfx_layout charlayout =
+{
+ 8, 8, /* 8*8 characters */
+ 256, /* 256 characters */
+ 4, /* 4 bits per pixel */
+ { 0, 1, 2, 3 },
+ { 4, 0, 12, 8, 20, 16, 28, 24 },
+ { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
+ 32*8
+};
+
+static const gfx_layout spritelayout =
+{
+ 16, 16, /* 16*16 characters */
+ 512, /* 512 characters */
+ 4, /* 4 bits per pixel */
+ { 0, 1, 2, 3 },
+ { 4, 0, 4+512*64*8, 0+512*64*8, 12, 8, 12+512*64*8, 8+512*64*8,
+ 20, 16, 20+512*64*8, 16+512*64*8, 28, 24, 28+512*64*8, 24+512*64*8 },
+ { 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 },
+ 64*8
+};
+
+static GFXDECODE_START( magmax )
+ GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) /*no color codes*/
+ GFXDECODE_ENTRY( "gfx2", 0, spritelayout, 1*16, 16 ) /*16 color codes*/
+GFXDECODE_END
+
+
+static const ay8910_interface ay8910_config =
+{
+ AY8910_LEGACY_OUTPUT,
+ AY8910_DEFAULT_LOADS,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_HANDLER(ay8910_portA_0_w), /*write port A*/
+ DEVCB_HANDLER(ay8910_portB_0_w) /*write port B*/
+};
+
+
+static MACHINE_CONFIG_START( magmax, magmax_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000, XTAL_16MHz/2) /* verified on pcb */
+ MCFG_CPU_PROGRAM_MAP(magmax_map)
+ MCFG_CPU_VBLANK_INT("screen", irq1_line_hold)
+
+ MCFG_CPU_ADD("audiocpu", Z80,XTAL_20MHz/8) /* verified on pcb */
+ MCFG_CPU_PROGRAM_MAP(magmax_sound_map)
+ MCFG_CPU_IO_MAP(magmax_sound_io_map)
+
+ MCFG_QUANTUM_TIME(attotime::from_hz(600))
+
+ MCFG_MACHINE_START(magmax)
+ MCFG_MACHINE_RESET(magmax)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(32*8, 32*8)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
+ MCFG_SCREEN_UPDATE(magmax)
+
+ MCFG_GFXDECODE(magmax)
+ MCFG_PALETTE_LENGTH(1*16 + 16*16 + 256)
+
+ MCFG_PALETTE_INIT(magmax)
+ MCFG_VIDEO_START(magmax)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("ay1", AY8910, XTAL_20MHz/16) /* verified on pcb */
+ MCFG_SOUND_CONFIG(ay8910_config)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
+
+ MCFG_SOUND_ADD("ay2", AY8910, XTAL_20MHz/16) /* verified on pcb */
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
+
+ MCFG_SOUND_ADD("ay3", AY8910, XTAL_20MHz/16) /* verified on pcb */
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40)
+MACHINE_CONFIG_END
+
+
+ROM_START( magmax )
+ ROM_REGION( 0x14000, "maincpu", 0 )
+ ROM_LOAD16_BYTE( "1.3b", 0x00001, 0x4000, CRC(33793cbb) SHA1(a0bc0e4be434d9fc8115de8d63c92e942334bc85) )
+ ROM_LOAD16_BYTE( "6.3d", 0x00000, 0x4000, CRC(677ef450) SHA1(9003ff1c1c455970c1bd036b0b5e44dae2e379a5) )
+ ROM_LOAD16_BYTE( "2.5b", 0x08001, 0x4000, CRC(1a0c84df) SHA1(77ff21de33392a148d7ca69a77acc654260af0db) )
+ ROM_LOAD16_BYTE( "7.5d", 0x08000, 0x4000, CRC(01c35e95) SHA1(4f1a0d0463a956d8f9ed425cbeaed6186eb130a5) )
+ ROM_LOAD16_BYTE( "3.6b", 0x10001, 0x2000, CRC(d06e6cae) SHA1(94047b2bcf030d34295ff8107f95097ce57efe6b) )
+ ROM_LOAD16_BYTE( "8.6d", 0x10000, 0x2000, CRC(790a82be) SHA1(9a25d5a7c87aeef5e736b0f2fb8dde1c9be70039) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 )
+ ROM_LOAD( "15.17b", 0x00000, 0x2000, CRC(19e7b983) SHA1(b1cd0b728e7cce87d9b1039be179d0915d939a4f) )
+ ROM_LOAD( "16.18b", 0x02000, 0x2000, CRC(055e3126) SHA1(8c9b03eb7588512ef17f8c1b731a2fd7cf372bf8) )
+
+ ROM_REGION( 0x02000, "gfx1", 0 ) /* chars */
+ ROM_LOAD( "23.15g", 0x00000, 0x2000, CRC(a7471da2) SHA1(ec2815a5801bc55955e612173a845399fd493eb7) )
+
+ ROM_REGION( 0x10000, "gfx2", 0 ) /* sprites */
+ ROM_LOAD( "17.3e", 0x00000, 0x2000, CRC(8e305b2e) SHA1(74c318089f6bebafbee31c22302e93a09d3ffa32) )
+ ROM_LOAD( "18.5e", 0x02000, 0x2000, CRC(14c55a60) SHA1(fd2a1b434bb65502f0f791995caf1cd869ccd254) )
+ ROM_LOAD( "19.6e", 0x04000, 0x2000, CRC(fa4141d8) SHA1(a5279d1ada5a13df14a8bbc18ceeea79f82a4c23) )
+ ROM_LOAD( "20.3g", 0x08000, 0x2000, CRC(6fa3918b) SHA1(658bdbdc581732922c986b07746a9601d86ec5a2) )
+ ROM_LOAD( "21.5g", 0x0a000, 0x2000, CRC(dd52eda4) SHA1(773e92c918f5b076ce3cae55a33a27c38d958edf) )
+ ROM_LOAD( "22.6g", 0x0c000, 0x2000, CRC(4afc98ff) SHA1(a34d63befdb3c749460d1cfb62e15ced52859b9b) )
+
+ ROM_REGION( 0x10000, "user1", 0 ) /* surface scroll control */
+ ROM_LOAD16_BYTE( "4.18b", 0x00000, 0x2000, CRC(1550942e) SHA1(436424d63ca576d13b0f4a3713f009a38e33f2f3) )
+ ROM_LOAD16_BYTE( "5.20b", 0x00001, 0x2000, CRC(3b93017f) SHA1(b1b67c2050c8033c29bb74ab909075c39e4f7c6a) )
+ /* BG control data */
+ ROM_LOAD( "9.18d", 0x04000, 0x2000, CRC(9ecc9ab8) SHA1(ea5fbd9e9ce09e25f532dc74623e0f7e8464b7f3) ) /* surface */
+ ROM_LOAD( "10.20d", 0x06000, 0x2000, CRC(e2ff7293) SHA1(d93c30f7edac53747efcf840325a8ce5f5e47b32) ) /* underground */
+ /* background tiles */
+ ROM_LOAD( "11.15f", 0x08000, 0x2000, CRC(91f3edb6) SHA1(64e8008cad0e9c42c2ee972c2ee867c7c51cae27) ) /* surface */
+ ROM_LOAD( "12.17f", 0x0a000, 0x2000, CRC(99771eff) SHA1(5a1e2316b4055a1332d9d1f02edee5bc6aae90ac) ) /* underground */
+ ROM_LOAD( "13.18f", 0x0c000, 0x2000, CRC(75f30159) SHA1(d188ccf926e7a842e90ebc1aad3dc20c37d84b98) ) /* surface of mechanical level */
+ ROM_LOAD( "14.20f", 0x0e000, 0x2000, CRC(96babcba) SHA1(fec58ccc1e5cc2cec56658a412b94fe7b989541d) ) /* underground of mechanical level */
+
+ ROM_REGION( 0x0200, "user2", 0 ) /* BG control data */
+ ROM_LOAD( "mag_b.14d", 0x0000, 0x0100, CRC(a0fb7297) SHA1(e6461050e7e586475343156aae1066b944ceab66) ) /* background control PROM */
+ ROM_LOAD( "mag_c.15d", 0x0100, 0x0100, CRC(d84a6f78) SHA1(f2ce329b1adf39bde6df2eb79be6d144adea65d0) ) /* background control PROM */
+
+ ROM_REGION( 0x0500, "proms", 0 ) /* color PROMs */
+ ROM_LOAD( "mag_e.10f", 0x0000, 0x0100, CRC(75e4f06a) SHA1(cdaccc3e56df4ac9ace04b93b3bab9a62f1ea6f5) ) /* red */
+ ROM_LOAD( "mag_d.10e", 0x0100, 0x0100, CRC(34b6a6e3) SHA1(af254ccf0d38e1f4644375cd357d468ad4efe450) ) /* green */
+ ROM_LOAD( "mag_a.10d", 0x0200, 0x0100, CRC(a7ea7718) SHA1(4789586d6795644517a18f179b4ae5f23737b21d) ) /* blue */
+ ROM_LOAD( "mag_g.2e", 0x0300, 0x0100, CRC(830be358) SHA1(f412587718040a783c4e6453619930c90daf385e) ) /* sprites color lookup table */
+ ROM_LOAD( "mag_f.13b", 0x0400, 0x0100, CRC(4a6f9a6d) SHA1(65f1e0bfacd1f354ece1b18598a551044c27c4d1) ) /* state machine data used for video signals generation (not used in emulation)*/
+ROM_END
+
+
+GAME( 1985, magmax, 0, magmax, magmax, 0, ROT0, "Nichibutsu", "Mag Max", GAME_SUPPORTS_SAVE )