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Diffstat (limited to 'src/mame/drivers/m52.cpp')
-rw-r--r--src/mame/drivers/m52.cpp589
1 files changed, 589 insertions, 0 deletions
diff --git a/src/mame/drivers/m52.cpp b/src/mame/drivers/m52.cpp
new file mode 100644
index 00000000000..591b93ef99d
--- /dev/null
+++ b/src/mame/drivers/m52.cpp
@@ -0,0 +1,589 @@
+// license:BSD-3-Clause
+// copyright-holders:Nicola Salmoria
+/***************************************************************************
+
+ Irem M52 hardware
+
+****************************************************************************
+
+ Moon Patrol memory map
+
+ driver by Nicola Salmoria
+
+ 0000-3fff ROM
+ 8000-83ff Video RAM
+ 8400-87ff Color RAM
+ e000-e7ff RAM
+
+
+ read:
+ 8800 protection
+ d000 IN0
+ d001 IN1
+ d002 IN2
+ d003 DSW1
+ d004 DSW2
+
+ write:
+ c800-c8ff sprites
+ d000 sound command
+ d001 flip screen
+
+ I/O ports
+ write:
+ 10-1f scroll registers
+ 40 background #1 x position
+ 60 background #1 y position
+ 80 background #2 x position
+ a0 background #2 y position
+ c0 background control
+
+*****************************************************************************
+
+ Locations based on m58.c driver
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "audio/irem.h"
+#include "includes/iremipt.h"
+#include "includes/m52.h"
+
+
+#define MASTER_CLOCK XTAL_18_432MHz
+
+
+/*************************************
+ *
+ * Memory maps
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, m52_state )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x8000, 0x83ff) AM_RAM_WRITE(m52_videoram_w) AM_SHARE("videoram")
+ AM_RANGE(0x8400, 0x87ff) AM_RAM_WRITE(m52_colorram_w) AM_SHARE("colorram")
+ AM_RANGE(0x8800, 0x8800) AM_MIRROR(0x07ff) AM_READ(m52_protection_r)
+ AM_RANGE(0xc800, 0xcbff) AM_MIRROR(0x0400) AM_WRITEONLY AM_SHARE("spriteram")
+ AM_RANGE(0xd000, 0xd000) AM_MIRROR(0x07fc) AM_DEVWRITE("irem_audio", irem_audio_device, cmd_w)
+ AM_RANGE(0xd001, 0xd001) AM_MIRROR(0x07fc) AM_WRITE(m52_flipscreen_w) /* + coin counters */
+ AM_RANGE(0xd000, 0xd000) AM_MIRROR(0x07f8) AM_READ_PORT("IN0")
+ AM_RANGE(0xd001, 0xd001) AM_MIRROR(0x07f8) AM_READ_PORT("IN1")
+ AM_RANGE(0xd002, 0xd002) AM_MIRROR(0x07f8) AM_READ_PORT("IN2")
+ AM_RANGE(0xd003, 0xd003) AM_MIRROR(0x07f8) AM_READ_PORT("DSW1")
+ AM_RANGE(0xd004, 0xd004) AM_MIRROR(0x07f8) AM_READ_PORT("DSW2")
+ AM_RANGE(0xe000, 0xe7ff) AM_RAM
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( alpha1v_map, AS_PROGRAM, 8, m52_state )
+ AM_RANGE(0x0000, 0x6fff) AM_ROM
+ AM_RANGE(0x8000, 0x83ff) AM_RAM_WRITE(m52_videoram_w) AM_SHARE("videoram")
+ AM_RANGE(0x8400, 0x87ff) AM_RAM_WRITE(m52_colorram_w) AM_SHARE("colorram")
+ AM_RANGE(0xc800, 0xc9ff) AM_WRITEONLY AM_SHARE("spriteram") // bigger or mirrored?
+ AM_RANGE(0xd000, 0xd000) AM_READ_PORT("IN0") AM_DEVWRITE("irem_audio", irem_audio_device, cmd_w)
+ AM_RANGE(0xd001, 0xd001) AM_READ_PORT("IN1") AM_WRITE(alpha1v_flipscreen_w)
+ AM_RANGE(0xd002, 0xd002) AM_READ_PORT("IN2")
+ AM_RANGE(0xd003, 0xd003) AM_READ_PORT("DSW1")
+ AM_RANGE(0xd004, 0xd004) AM_READ_PORT("DSW2")
+ AM_RANGE(0xe000, 0xefff) AM_RAM // bigger or mirrored?
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( main_portmap, AS_IO, 8, m52_state )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_MIRROR(0x1f) AM_WRITE(m52_scroll_w)
+ AM_RANGE(0x40, 0x40) AM_MIRROR(0x1f) AM_WRITE(m52_bg1xpos_w)
+ AM_RANGE(0x60, 0x60) AM_MIRROR(0x1f) AM_WRITE(m52_bg1ypos_w)
+ AM_RANGE(0x80, 0x80) AM_MIRROR(0x1f) AM_WRITE(m52_bg2xpos_w)
+ AM_RANGE(0xa0, 0xa0) AM_MIRROR(0x1f) AM_WRITE(m52_bg2ypos_w)
+ AM_RANGE(0xc0, 0xc0) AM_MIRROR(0x1f) AM_WRITE(m52_bgcontrol_w)
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Port definitions
+ *
+ *************************************/
+
+/* Same as m57, m58 and m62 (IREM Z80 hardware) */
+static INPUT_PORTS_START( m52 )
+ PORT_START("IN0")
+ /* Start 1 & 2 also restarts and freezes the game with stop mode on
+ and are used in test mode to enter and esc the various tests */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
+ /* coin input must be active for 19 frames to be consistently recognized */
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_IMPULSE(19)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+
+ /* DSW1 is so different from game to game that it isn't included here */
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW2:1")
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW2:2")
+ PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Cocktail ) )
+ PORT_DIPNAME( 0x04, 0x04, "Coin Mode" ) PORT_DIPLOCATION("SW2:3")
+ PORT_DIPSETTING( 0x04, "Mode 1" )
+ PORT_DIPSETTING( 0x00, "Mode 2" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x08, IP_ACTIVE_LOW, "SW2:4" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x10, IP_ACTIVE_LOW, "SW2:5" )
+ PORT_DIPUNKNOWN_DIPLOC( 0x20, IP_ACTIVE_LOW, "SW2:6" )
+ PORT_DIPNAME( 0x40, 0x40, "Invulnerability (Cheat)") PORT_DIPLOCATION("SW2:7")
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_SERVICE_DIPLOC( 0x80, IP_ACTIVE_LOW, "SW2:8" )
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( mpatrol )
+ PORT_INCLUDE(m52)
+
+ PORT_MODIFY("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* IPT_JOYSTICK_DOWN */
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* IPT_JOYSTICK_UP */
+
+ PORT_MODIFY("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* IPT_JOYSTICK_DOWN PORT_COCKTAIL */
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* IPT_JOYSTICK_UP PORT_COCKTAIL */
+
+ PORT_MODIFY("DSW2")
+ PORT_DIPUNUSED_DIPLOC( 0x08, IP_ACTIVE_LOW, "SW2:4" ) /* should have been "slow motion" but no conditional jump at 0x00c3 */
+ /* In stop mode, press 2 to stop and 1 to restart */
+ PORT_DIPNAME( 0x10, 0x10, "Stop Mode (Cheat)") PORT_DIPLOCATION("SW2:5")
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, "Sector Selection (Cheat)") PORT_DIPLOCATION("SW2:6")
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:1,2")
+ PORT_DIPSETTING( 0x00, "1" )
+ PORT_DIPSETTING( 0x01, "2" )
+ PORT_DIPSETTING( 0x02, "3" )
+ PORT_DIPSETTING( 0x03, "5" )
+ PORT_DIPNAME( 0x0c, 0x0c, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW1:3,4")
+ PORT_DIPSETTING( 0x0c, "10000 30000 50000" )
+ PORT_DIPSETTING( 0x08, "20000 40000 60000" )
+ PORT_DIPSETTING( 0x04, "10000" )
+ PORT_DIPSETTING( 0x00, DEF_STR( None ) )
+ IREM_Z80_COINAGE_TYPE_1_LOC(SW1)
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( mpatrolw )
+ PORT_INCLUDE(mpatrol)
+
+ PORT_MODIFY("DSW1")
+ PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:1,2")
+ PORT_DIPSETTING( 0x00, "2" )
+ PORT_DIPSETTING( 0x01, "3" )
+ PORT_DIPSETTING( 0x02, "4" )
+ PORT_DIPSETTING( 0x03, "5" )
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( alpha1v )
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x03, "2" )
+ PORT_DIPSETTING( 0x02, "3" )
+ PORT_DIPSETTING( 0x01, "4" )
+ PORT_DIPSETTING( 0x00, "5" )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+ PORT_DIPUNUSED( 0x08, IP_ACTIVE_LOW )
+ PORT_DIPNAME( 0x10, 0x00, DEF_STR( Allow_Continue ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Yes ) )
+ PORT_DIPUNUSED( 0x20, IP_ACTIVE_LOW )
+ PORT_DIPUNUSED( 0x40, IP_ACTIVE_LOW )
+ PORT_DIPUNUSED( 0x80, IP_ACTIVE_LOW )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x0f, 0x00, DEF_STR( Coin_A ) ) /* table at 0x5ef4 - 16 bytes (coins) + 16 bytes (credits) */
+ PORT_DIPSETTING( 0x0b, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 3C_1C ) )
+// PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
+// PORT_DIPSETTING( 0x09, DEF_STR( 2C_1C ) )
+// PORT_DIPSETTING( 0x0a, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x0d, DEF_STR( 2C_1C ) )
+// PORT_DIPSETTING( 0x0e, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x06, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x05, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x04, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x01, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPNAME( 0xf0, 0x00, DEF_STR( Coin_B ) ) /* table at 0x5f14 - 16 bytes (coins) + 16 bytes (credits) */
+// PORT_DIPSETTING( 0xf0, "1 Coin/0 Credit" )
+// PORT_DIPSETTING( 0x70, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x60, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x50, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x40, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x20, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0x10, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+// PORT_DIPSETTING( 0xe0, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0xd0, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0xc0, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0xb0, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0xa0, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x90, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( 1C_7C ) )
+INPUT_PORTS_END
+
+
+
+/*************************************
+ *
+ * Graphics layouts
+ *
+ *************************************/
+
+static const gfx_layout charlayout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { STEP8(0,1) },
+ { STEP8(0,8) },
+ 8*8
+};
+
+static const gfx_layout spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(0,2), RGN_FRAC(1,2) },
+ { STEP8(0,1), STEP8(16*8,1) },
+ { STEP16(0,8) },
+ 32*8
+};
+
+static const UINT32 bgcharlayout_xoffset[256] =
+{
+ STEP4(0x000,1), STEP4(0x008,1), STEP4(0x010,1), STEP4(0x018,1),
+ STEP4(0x020,1), STEP4(0x028,1), STEP4(0x030,1), STEP4(0x038,1),
+ STEP4(0x040,1), STEP4(0x048,1), STEP4(0x050,1), STEP4(0x058,1),
+ STEP4(0x060,1), STEP4(0x068,1), STEP4(0x070,1), STEP4(0x078,1),
+ STEP4(0x080,1), STEP4(0x088,1), STEP4(0x090,1), STEP4(0x098,1),
+ STEP4(0x0a0,1), STEP4(0x0a8,1), STEP4(0x0b0,1), STEP4(0x0b8,1),
+ STEP4(0x0c0,1), STEP4(0x0c8,1), STEP4(0x0d0,1), STEP4(0x0d8,1),
+ STEP4(0x0e0,1), STEP4(0x0e8,1), STEP4(0x0f0,1), STEP4(0x0f8,1),
+ STEP4(0x100,1), STEP4(0x108,1), STEP4(0x110,1), STEP4(0x118,1),
+ STEP4(0x120,1), STEP4(0x128,1), STEP4(0x130,1), STEP4(0x138,1),
+ STEP4(0x140,1), STEP4(0x148,1), STEP4(0x150,1), STEP4(0x158,1),
+ STEP4(0x160,1), STEP4(0x168,1), STEP4(0x170,1), STEP4(0x178,1),
+ STEP4(0x180,1), STEP4(0x188,1), STEP4(0x190,1), STEP4(0x198,1),
+ STEP4(0x1a0,1), STEP4(0x1a8,1), STEP4(0x1b0,1), STEP4(0x1b8,1),
+ STEP4(0x1c0,1), STEP4(0x1c8,1), STEP4(0x1d0,1), STEP4(0x1d8,1),
+ STEP4(0x1e0,1), STEP4(0x1e8,1), STEP4(0x1f0,1), STEP4(0x1f8,1)
+};
+
+static const UINT32 bgcharlayout_yoffset[64] =
+{
+ STEP32(0x0000,0x200), STEP32(0x4000,0x200)
+};
+
+static const gfx_layout bgcharlayout =
+{
+ 256, 64, /* 256x64 image format */
+ 1, /* 1 image */
+ 2, /* 2 bits per pixel */
+ { 4, 0 }, /* the two bitplanes for 4 pixels are packed into one byte */
+ EXTENDED_XOFFS,
+ EXTENDED_YOFFS,
+ 0x8000,
+ bgcharlayout_xoffset,
+ bgcharlayout_yoffset
+};
+
+
+static GFXDECODE_START( m52 )
+ GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout, 0, 128 )
+ GFXDECODE_ENTRY( "gfx2", 0x0000, spritelayout, 128*4, 16 )
+ GFXDECODE_ENTRY( "gfx3", 0x0000, bgcharlayout, 128*4+16*4+0*4, 1 )
+ GFXDECODE_ENTRY( "gfx4", 0x0000, bgcharlayout, 128*4+16*4+1*4, 1 )
+ GFXDECODE_ENTRY( "gfx5", 0x0000, bgcharlayout, 128*4+16*4+2*4, 1 )
+GFXDECODE_END
+
+
+
+/*************************************
+ *
+ * Machine drivers
+ *
+ *************************************/
+
+void m52_state::machine_reset()
+{
+ m_bg1xpos = 0;
+ m_bg1ypos = 0;
+ m_bg2xpos = 0;
+ m_bg2ypos = 0;
+ m_bgcontrol = 0;
+}
+
+static MACHINE_CONFIG_START( m52, m52_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, MASTER_CLOCK/6)
+ MCFG_CPU_PROGRAM_MAP(main_map)
+ MCFG_CPU_IO_MAP(main_portmap)
+ MCFG_CPU_VBLANK_INT_DRIVER("screen", m52_state, irq0_line_hold)
+
+ /* video hardware */
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", m52)
+ MCFG_PALETTE_ADD("palette", 128*4+16*4+3*4)
+ MCFG_PALETTE_INDIRECT_ENTRIES(512+32+32)
+ MCFG_PALETTE_INIT_OWNER(m52_state, m52)
+
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_RAW_PARAMS(MASTER_CLOCK/3, 384, 136, 376, 282, 22, 274)
+ MCFG_SCREEN_UPDATE_DRIVER(m52_state, screen_update_m52)
+ MCFG_SCREEN_PALETTE("palette")
+
+ /* sound hardware */
+ //MCFG_FRAGMENT_ADD(m52_sound_c_audio)
+ MCFG_DEVICE_ADD("irem_audio", IREM_M52_SOUNDC_AUDIO, 0)
+
+MACHINE_CONFIG_END
+
+
+static MACHINE_CONFIG_DERIVED( alpha1v, m52 )
+
+ /* basic machine hardware */
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_PROGRAM_MAP(alpha1v_map)
+MACHINE_CONFIG_END
+
+
+
+/*************************************
+ *
+ * ROM definitions
+ *
+ *************************************/
+
+ROM_START( mpatrol )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "mpa-1.3m", 0x0000, 0x1000, CRC(5873a860) SHA1(8c03726d6e049c3edbc277440184e31679f78258) )
+ ROM_LOAD( "mpa-2.3l", 0x1000, 0x1000, CRC(f4b85974) SHA1(dfb2efb57378a20af6f20569f4360cde95596f93) )
+ ROM_LOAD( "mpa-3.3k", 0x2000, 0x1000, CRC(2e1a598c) SHA1(112c3c9678db8a8540a8df3708020c87fd10c91b) )
+ ROM_LOAD( "mpa-4.3j", 0x3000, 0x1000, CRC(dd05b587) SHA1(727961b0dafa4a96b580d51013336db2a18aff1e) )
+
+ ROM_REGION( 0x8000, "irem_audio:iremsound", 0 )
+ ROM_LOAD( "mp-s1.1a", 0x7000, 0x1000, CRC(561d3108) SHA1(4998c68a9e9a8002251fa8f07aa1082444a9dc80) )
+
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "mpe-5.3e", 0x0000, 0x1000, CRC(e3ee7f75) SHA1(b03d0d56150d3e9da4a4c871338097b4f450b649) ) /* chars */
+ ROM_LOAD( "mpe-4.3f", 0x1000, 0x1000, CRC(cca6d023) SHA1(fecb3059fb09897a096add9452b50aec55c07545) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "mpb-2.3m", 0x0000, 0x1000, CRC(707ace5e) SHA1(93c682e13e74bce29ced3a87bffb29569c114c3b) ) /* sprites */
+ ROM_LOAD( "mpb-1.3n", 0x1000, 0x1000, CRC(9b72133a) SHA1(1393ef92ae1ad58a4b62ca1660c0793d30a8b5e2) )
+
+ ROM_REGION( 0x1000, "gfx3", 0 )
+ ROM_LOAD( "mpe-1.3l", 0x0000, 0x1000, CRC(c46a7f72) SHA1(8bb7c9acaf6833fb6c0575b015991b873a305a84) ) /* background graphics */
+
+ ROM_REGION( 0x1000, "gfx4", 0 )
+ ROM_LOAD( "mpe-2.3k", 0x0000, 0x1000, CRC(c7aa1fb0) SHA1(14c6c76e1d0db2c0745e5d6d33ea6945fac8e9ee) )
+
+ ROM_REGION( 0x1000, "gfx5", 0 )
+ ROM_LOAD( "mpe-3.3h", 0x0000, 0x1000, CRC(a0919392) SHA1(8a090cb8d483a3d67c7360058e3fdd70e151cd62) )
+
+ ROM_REGION( 0x0340, "proms", 0 )
+ ROM_LOAD( "mpc-4.2a", 0x0000, 0x0200, CRC(07f99284) SHA1(dfc52958f2520e1ce4446dd4c84c91413bbacf76) )
+ ROM_LOAD( "mpc-3.1m", 0x0200, 0x0020, CRC(6a57eff2) SHA1(2d1c12dab5915da2ccd466e39436c88be434d634) ) /* background palette */
+ ROM_LOAD( "mpc-1.1f", 0x0220, 0x0020, CRC(26979b13) SHA1(8c41a8cce4f3384c392a9f7a223a50d7be0e14a5) ) /* sprite palette */
+ ROM_LOAD( "mpc-2.2h", 0x0240, 0x0100, CRC(7ae4cd97) SHA1(bc0662fac82ffe65f02092d912b2c2b0c7a8ac2b) ) /* sprite lookup table */
+ROM_END
+
+ROM_START( mpatrolw )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "mpa-1w.3m", 0x0000, 0x1000, CRC(baa1a1d4) SHA1(7968a7f221e7f4c9c81ddc8de17f6568e17b9ea8) )
+ ROM_LOAD( "mpa-2w.3l", 0x1000, 0x1000, CRC(52459e51) SHA1(ae685b7848baa1b87a3f2bce97356286171e16d4) )
+ ROM_LOAD( "mpa-3w.3k", 0x2000, 0x1000, CRC(9b249fe5) SHA1(c01e0d572c4c163f3cf4b2aa9f4246427811b78d) )
+ ROM_LOAD( "mpa-4w.3j", 0x3000, 0x1000, CRC(fee76972) SHA1(c3166b027f89f61964ead804d3c2da387454c4c2) )
+
+ ROM_REGION( 0x8000, "irem_audio:iremsound", 0 )
+ ROM_LOAD( "mp-s1.1a", 0x7000, 0x1000, CRC(561d3108) SHA1(4998c68a9e9a8002251fa8f07aa1082444a9dc80) )
+
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "mpe-5w.3e", 0x0000, 0x1000, CRC(f56e01fe) SHA1(93f582d63b9cd5c6dca207aa57b213c939cdda1d) ) /* chars */
+ ROM_LOAD( "mpe-4w.3f", 0x1000, 0x1000, CRC(caaba2d9) SHA1(7016a26c2d01e3209749598e993cd8ce91f12c88) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "mpb-2.3m", 0x0000, 0x1000, CRC(707ace5e) SHA1(93c682e13e74bce29ced3a87bffb29569c114c3b) ) /* sprites */
+ ROM_LOAD( "mpb-1.3n", 0x1000, 0x1000, CRC(9b72133a) SHA1(1393ef92ae1ad58a4b62ca1660c0793d30a8b5e2) )
+
+ ROM_REGION( 0x1000, "gfx3", 0 )
+ ROM_LOAD( "mpe-1.3l", 0x0000, 0x1000, CRC(c46a7f72) SHA1(8bb7c9acaf6833fb6c0575b015991b873a305a84) ) /* background graphics */
+
+ ROM_REGION( 0x1000, "gfx4", 0 )
+ ROM_LOAD( "mpe-2.3k", 0x0000, 0x1000, CRC(c7aa1fb0) SHA1(14c6c76e1d0db2c0745e5d6d33ea6945fac8e9ee) )
+
+ ROM_REGION( 0x1000, "gfx5", 0 )
+ ROM_LOAD( "mpe-3.3h", 0x0000, 0x1000, CRC(a0919392) SHA1(8a090cb8d483a3d67c7360058e3fdd70e151cd62) )
+
+ ROM_REGION( 0x0340, "proms", 0 )
+ ROM_LOAD( "mpc-4a.2a", 0x0000, 0x0200, CRC(cb0a5ff3) SHA1(d3f88b4e0c4858abac8b52105656ecece0cf4df9) )
+ ROM_LOAD( "mpc-3.1m", 0x0200, 0x0020, CRC(6a57eff2) SHA1(2d1c12dab5915da2ccd466e39436c88be434d634) ) /* background palette */
+ ROM_LOAD( "mpc-1.1f", 0x0220, 0x0020, CRC(26979b13) SHA1(8c41a8cce4f3384c392a9f7a223a50d7be0e14a5) ) /* sprite palette */
+ ROM_LOAD( "mpc-2.2h", 0x0240, 0x0100, CRC(7ae4cd97) SHA1(bc0662fac82ffe65f02092d912b2c2b0c7a8ac2b) ) /* sprite lookup table */
+ROM_END
+
+ROM_START( mranger )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "mpa-1.3m", 0x0000, 0x1000, CRC(5873a860) SHA1(8c03726d6e049c3edbc277440184e31679f78258) )
+ ROM_LOAD( "mra-2.3l", 0x1000, 0x1000, CRC(217dd431) SHA1(7b81f854209afc1fd3df11b7375f36de6bc4a7c3) )
+ ROM_LOAD( "mra-3.3k", 0x2000, 0x1000, CRC(9f0af7b2) SHA1(3daaec15b0d3bc30723ebb14b50f66f288f0d096) )
+ ROM_LOAD( "mra-4.3j", 0x3000, 0x1000, CRC(7fe8e2cd) SHA1(4ffad9c7a9360999b213b790c6c76cc79c8e49d5) )
+
+ ROM_REGION( 0x8000, "irem_audio:iremsound", 0 )
+ ROM_LOAD( "mp-s1.1a", 0x7000, 0x1000, CRC(561d3108) SHA1(4998c68a9e9a8002251fa8f07aa1082444a9dc80) )
+
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "mpe-5.3e", 0x0000, 0x1000, CRC(e3ee7f75) SHA1(b03d0d56150d3e9da4a4c871338097b4f450b649) ) /* chars */
+ ROM_LOAD( "mpe-4.3f", 0x1000, 0x1000, CRC(cca6d023) SHA1(fecb3059fb09897a096add9452b50aec55c07545) )
+
+ ROM_REGION( 0x2000, "gfx2", 0 )
+ ROM_LOAD( "mpb-2.3m", 0x0000, 0x1000, CRC(707ace5e) SHA1(93c682e13e74bce29ced3a87bffb29569c114c3b) ) /* sprites */
+ ROM_LOAD( "mpb-1.3n", 0x1000, 0x1000, CRC(9b72133a) SHA1(1393ef92ae1ad58a4b62ca1660c0793d30a8b5e2) )
+
+ ROM_REGION( 0x1000, "gfx3", 0 )
+ ROM_LOAD( "mpe-1.3l", 0x0000, 0x1000, CRC(c46a7f72) SHA1(8bb7c9acaf6833fb6c0575b015991b873a305a84) ) /* background graphics */
+
+ ROM_REGION( 0x1000, "gfx4", 0 )
+ ROM_LOAD( "mpe-2.3k", 0x0000, 0x1000, CRC(c7aa1fb0) SHA1(14c6c76e1d0db2c0745e5d6d33ea6945fac8e9ee) )
+
+ ROM_REGION( 0x1000, "gfx5", 0 )
+ ROM_LOAD( "mpe-3.3h", 0x0000, 0x1000, CRC(a0919392) SHA1(8a090cb8d483a3d67c7360058e3fdd70e151cd62) )
+
+ ROM_REGION( 0x0340, "proms", 0 )
+ ROM_LOAD( "mpc-4.2a", 0x0000, 0x0200, CRC(07f99284) SHA1(dfc52958f2520e1ce4446dd4c84c91413bbacf76) )
+ ROM_LOAD( "mpc-3.1m", 0x0200, 0x0020, CRC(6a57eff2) SHA1(2d1c12dab5915da2ccd466e39436c88be434d634) ) /* background palette */
+ ROM_LOAD( "mpc-1.1f", 0x0220, 0x0020, CRC(26979b13) SHA1(8c41a8cce4f3384c392a9f7a223a50d7be0e14a5) ) /* sprite palette */
+ ROM_LOAD( "mpc-2.2h", 0x0240, 0x0100, CRC(7ae4cd97) SHA1(bc0662fac82ffe65f02092d912b2c2b0c7a8ac2b) ) /* sprite lookup table */
+ROM_END
+
+
+ROM_START( alpha1v )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "2-m3", 0x0000, 0x1000, CRC(3a679d34) SHA1(1a54a43070c56dc91d4d258f29e29613bb309f1c) )
+ ROM_LOAD( "3-l3", 0x1000, 0x1000, CRC(2f09df64) SHA1(e91602e9e41ad24dd1d7f384ed81b9bdaadd03e1) )
+ ROM_LOAD( "4-k3", 0x2000, 0x1000, CRC(64fb9c8a) SHA1(735fd00cc42193a417e6cde75f12b4cf2e804942) )
+ ROM_LOAD( "5-j3", 0x3000, 0x1000, CRC(d1643d18) SHA1(7c794b82e17e2ba0a6237e3fc20d8314f6c2481c) )
+ ROM_LOAD( "6-h3", 0x4000, 0x1000, CRC(cf34ab51) SHA1(3696da71e2bc7edd1ee7aeaac87be5386608c09e) )
+ ROM_LOAD( "7-f3", 0x5000, 0x1000, CRC(99db9781) SHA1(a56a675cc4cbc9681bfe8052f51f19336eb2a0a6) )
+ ROM_LOAD( "7a e3", 0x6000, 0x1000, CRC(3b0b4b0d) SHA1(0d8eea1e2db269943611289b3490a578ee347f85) )
+
+ ROM_REGION( 0x8000, "irem_audio:iremsound", 0 )
+ ROM_LOAD( "1-a1", 0x7000, 0x1000, CRC(9e07fdd5) SHA1(ed4f462fcfe91fa8e88bfeaaba0a0c11fa0b4601) )
+
+ ROM_REGION( 0x2000, "gfx1", 0 )
+ ROM_LOAD( "14-e3", 0x0000, 0x1000, CRC(cf00c737) SHA1(415e90289039cac4d04cb1d559f1378ca6a32132) ) /* chars */
+ ROM_LOAD( "13-f3", 0x1000, 0x1000, CRC(4b799229) SHA1(42cbdcf787b08b041d30504d699a12c378224933) )
+
+ ROM_REGION( 0x3000, "gfx2", 0 ) // 3bpp? (mpatrol is 2bpp..)
+ ROM_LOAD( "15-n3", 0x0000, 0x1000, CRC(dc26df76) SHA1(dd1cff7935f5559f9d1b440e02d5e5aa521b0054) )
+ ROM_LOAD( "16-l3", 0x1000, 0x1000, CRC(39b9863b) SHA1(da9da9a1066188f050c422dfed1bbbd3ba612ccc) )
+ ROM_LOAD( "17-k3", 0x2000, 0x1000, CRC(cfd90773) SHA1(052e126888b6de636db9c521a090699c282b620b) )
+
+ /* all the background roms just contain stars.. */
+ ROM_REGION( 0x1000, "gfx3", 0 )
+ ROM_LOAD( "11-k3", 0x0000, 0x1000, CRC(7659440a) SHA1(2efd27c82913513dd03e799f1ed3c10b0863677d) ) // these two match..
+ ROM_LOAD( "12-jh3", 0x0000, 0x1000, CRC(7659440a) SHA1(2efd27c82913513dd03e799f1ed3c10b0863677d) )
+
+ ROM_REGION( 0x1000, "gfx4", 0 )
+ ROM_LOAD( "9-n3", 0x0000, 0x1000, CRC(0fdb7d13) SHA1(e828254a4f94df633d338b5772719276d41c6b7f) )
+
+ ROM_REGION( 0x1000, "gfx5", 0 )
+ ROM_LOAD( "10-lm3", 0x0000, 0x1000, CRC(9dde3a75) SHA1(293d093485be19bfb20685d76a08ac78e24062bf) )
+
+ ROM_REGION( 0x0340, "proms", 0 )
+ ROM_LOAD( "63s481-a2", 0x0000, 0x0200, CRC(58678ea8) SHA1(b13a78a5bca8ad5bdec1293512b53654768a7a7a) )
+ ROM_LOAD( "18s030-m1", 0x0200, 0x0020, CRC(6a57eff2) SHA1(2d1c12dab5915da2ccd466e39436c88be434d634) ) /* background palette */
+ ROM_LOAD( "mb7051-f1", 0x0220, 0x0020, CRC(d8bdd0df) SHA1(ca522428927911808214d319af314f601497ded4) ) /* sprite palette */
+ ROM_LOAD( "mb7052-h2", 0x0240, 0x0100, CRC(ce9f0ef9) SHA1(3afb94ed033f272983bbed22a59856df7824ef8a) ) /* sprite lookup table */
+ROM_END
+
+
+
+/*************************************
+ *
+ * Game drivers
+ *
+ *************************************/
+
+GAME( 1982, mpatrol, 0, m52, mpatrol, driver_device, 0, ROT0, "Irem", "Moon Patrol", MACHINE_SUPPORTS_SAVE )
+GAME( 1982, mpatrolw, mpatrol, m52, mpatrolw, driver_device, 0, ROT0, "Irem (Williams license)", "Moon Patrol (Williams)", MACHINE_SUPPORTS_SAVE ) // USA
+GAME( 1982, mranger, mpatrol, m52, mpatrol, driver_device, 0, ROT0, "bootleg", "Moon Ranger (bootleg of Moon Patrol)", MACHINE_SUPPORTS_SAVE ) // Italy
+GAME( 1988, alpha1v, 0, alpha1v, alpha1v, driver_device, 0, ROT0, "Vision Electronics", "Alpha One (Vision Electronics)", MACHINE_NOT_WORKING| MACHINE_NO_SOUND| MACHINE_SUPPORTS_SAVE )