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Diffstat (limited to 'trunk/src/mame/drivers/jrpacman.c')
-rw-r--r--trunk/src/mame/drivers/jrpacman.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/jrpacman.c b/trunk/src/mame/drivers/jrpacman.c
new file mode 100644
index 00000000000..0a46f70d5de
--- /dev/null
+++ b/trunk/src/mame/drivers/jrpacman.c
@@ -0,0 +1,397 @@
+/***************************************************************************
+
+ Bally/Midway Jr. Pac-Man
+
+ Games supported:
+ * Jr. Pac-Man
+
+ Known issues:
+ * none
+
+****************************************************************************
+
+ Jr. Pac Man memory map (preliminary)
+
+ 0000-3fff ROM
+ 4000-47ff Video RAM (also color RAM)
+ 4800-4fff RAM
+ 8000-dfff ROM
+
+ memory mapped ports:
+
+ read:
+ 5000 P1
+ 5040 P2
+ 5080 DSW
+
+ *
+ * IN0 (all bits are inverted)
+ * bit 7 : CREDIT
+ * bit 6 : COIN 2
+ * bit 5 : COIN 1
+ * bit 4 : RACK TEST
+ * bit 3 : DOWN player 1
+ * bit 2 : RIGHT player 1
+ * bit 1 : LEFT player 1
+ * bit 0 : UP player 1
+ *
+ *
+ * IN1 (all bits are inverted)
+ * bit 7 : TABLE or UPRIGHT cabinet select (1 = UPRIGHT)
+ * bit 6 : START 2
+ * bit 5 : START 1
+ * bit 4 : TEST SWITCH
+ * bit 3 : DOWN player 2 (TABLE only)
+ * bit 2 : RIGHT player 2 (TABLE only)
+ * bit 1 : LEFT player 2 (TABLE only)
+ * bit 0 : UP player 2 (TABLE only)
+ *
+ *
+ * DSW1 (all bits are inverted)
+ * bit 7 : ?
+ * bit 6 : difficulty level
+ * 1 = Normal 0 = Harder
+ * bit 5 :\ bonus pac at xx000 pts
+ * bit 4 :/ 00 = 10000 01 = 15000 10 = 20000 11 = 30000
+ * bit 3 :\ nr of lives
+ * bit 2 :/ 00 = 1 01 = 2 10 = 3 11 = 5
+ * bit 1 :\ play mode
+ * bit 0 :/ 00 = free play 01 = 1 coin 1 credit
+ * 10 = 1 coin 2 credits 11 = 2 coins 1 credit
+ *
+
+ write:
+ 4ff2-4ffd 6 pairs of two bytes:
+ the first byte contains the sprite image number (bits 2-7), Y flip (bit 0),
+ X flip (bit 1); the second byte the color
+ 5000 interrupt enable
+ 5001 sound enable
+ 5002 unused
+ 5003 flip screen
+ 5004 unused
+ 5005 unused
+ 5006 unused
+ 5007 coin counter
+ 5040-5044 sound voice 1 accumulator (nibbles) (used by the sound hardware only)
+ 5045 sound voice 1 waveform (nibble)
+ 5046-5049 sound voice 2 accumulator (nibbles) (used by the sound hardware only)
+ 504a sound voice 2 waveform (nibble)
+ 504b-504e sound voice 3 accumulator (nibbles) (used by the sound hardware only)
+ 504f sound voice 3 waveform (nibble)
+ 5050-5054 sound voice 1 frequency (nibbles)
+ 5055 sound voice 1 volume (nibble)
+ 5056-5059 sound voice 2 frequency (nibbles)
+ 505a sound voice 2 volume (nibble)
+ 505b-505e sound voice 3 frequency (nibbles)
+ 505f sound voice 3 volume (nibble)
+ 5062-506d Sprite coordinates, x/y pairs for 6 sprites
+ 5070 palette bank
+ 5071 colortable bank
+ 5073 background priority over sprites
+ 5074 char gfx bank
+ 5075 sprite gfx bank
+ 5080 scroll
+ 50c0 Watchdog reset
+
+ I/O ports:
+ OUT on port $0 sets the interrupt vector
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "includes/pacman.h"
+#include "sound/namco.h"
+
+
+class jrpacman_state : public pacman_state
+{
+public:
+ jrpacman_state(const machine_config &mconfig, device_type type, const char *tag)
+ : pacman_state(mconfig, type, tag) { }
+};
+
+
+
+static WRITE8_HANDLER( jrpacman_interrupt_vector_w )
+{
+ device_set_input_line_vector(space->machine().device("maincpu"), 0, data);
+ cputag_set_input_line(space->machine(), "maincpu", 0, CLEAR_LINE);
+}
+
+
+
+/*************************************
+ *
+ * Main CPU memory handlers
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x4000, 0x47ff) AM_RAM_WRITE(jrpacman_videoram_w) AM_BASE_MEMBER(jrpacman_state, m_videoram)
+ AM_RANGE(0x4800, 0x4fef) AM_RAM
+ AM_RANGE(0x4ff0, 0x4fff) AM_RAM AM_BASE_SIZE_GENERIC(spriteram)
+ AM_RANGE(0x5000, 0x503f) AM_READ_PORT("P1")
+ AM_RANGE(0x5000, 0x5000) AM_WRITE(interrupt_enable_w)
+ AM_RANGE(0x5001, 0x5001) AM_DEVWRITE("namco", pacman_sound_enable_w)
+ AM_RANGE(0x5003, 0x5003) AM_WRITE(pacman_flipscreen_w)
+ AM_RANGE(0x5040, 0x507f) AM_READ_PORT("P2")
+ AM_RANGE(0x5040, 0x505f) AM_DEVWRITE("namco", pacman_sound_w)
+ AM_RANGE(0x5060, 0x506f) AM_WRITEONLY AM_BASE_GENERIC(spriteram2)
+ AM_RANGE(0x5070, 0x5070) AM_WRITE(pengo_palettebank_w)
+ AM_RANGE(0x5071, 0x5071) AM_WRITE(pengo_colortablebank_w)
+ AM_RANGE(0x5073, 0x5073) AM_WRITE(jrpacman_bgpriority_w)
+ AM_RANGE(0x5074, 0x5074) AM_WRITE(jrpacman_charbank_w)
+ AM_RANGE(0x5075, 0x5075) AM_WRITE(jrpacman_spritebank_w)
+ AM_RANGE(0x5080, 0x50bf) AM_READ_PORT("DSW")
+ AM_RANGE(0x5080, 0x5080) AM_WRITE(jrpacman_scroll_w)
+ AM_RANGE(0x50c0, 0x50c0) AM_WRITENOP
+ AM_RANGE(0x8000, 0xdfff) AM_ROM
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( port_map, AS_IO, 8 )
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0, 0) AM_WRITE(jrpacman_interrupt_vector_w)
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Port definitions
+ *
+ *************************************/
+
+static INPUT_PORTS_START( jrpacman )
+ PORT_START("P1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
+ PORT_DIPNAME( 0x10, 0x10, "Rack Test (Cheat)" ) PORT_CODE(KEYCODE_F1)
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN3 )
+
+ PORT_START("P2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
+ PORT_SERVICE( 0x10, IP_ACTIVE_LOW )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+
+ PORT_START("DSW")
+ PORT_DIPNAME( 0x03, 0x01, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:1,2")
+ PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0x0c, 0x08, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:3,4")
+ PORT_DIPSETTING( 0x00, "1" )
+ PORT_DIPSETTING( 0x04, "2" )
+ PORT_DIPSETTING( 0x08, "3" )
+ PORT_DIPSETTING( 0x0c, "5" )
+ PORT_DIPNAME( 0x30, 0x00, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW1:5,6")
+ PORT_DIPSETTING( 0x00, "10000" )
+ PORT_DIPSETTING( 0x10, "15000" )
+ PORT_DIPSETTING( 0x20, "20000" )
+ PORT_DIPSETTING( 0x30, "30000" )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW1:7")
+ PORT_DIPSETTING( 0x40, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Hard ) )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:8")
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+INPUT_PORTS_END
+
+
+
+/*************************************
+ *
+ * Graphics layouts
+ *
+ *************************************/
+
+static const gfx_layout tilelayout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 2,
+ { 0, 4 },
+ { STEP4(8*8,1), STEP4(0*8,1) },
+ { STEP8(0*8,8) },
+ 16*8
+};
+
+
+static const gfx_layout spritelayout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 2,
+ { 0, 4 },
+ { STEP4(8*8,1), STEP4(16*8,1), STEP4(24*8,1), STEP4(0*8,1) },
+ { STEP8(0*8,8), STEP8(32*8,8) },
+ 64*8
+};
+
+
+static GFXDECODE_START( jrpacman )
+ GFXDECODE_ENTRY( "gfx1", 0x0000, tilelayout, 0, 128 )
+ GFXDECODE_ENTRY( "gfx1", 0x2000, spritelayout, 0, 128 )
+GFXDECODE_END
+
+
+
+/*************************************
+ *
+ * Sound interfaces
+ *
+ *************************************/
+
+static const namco_interface namco_config =
+{
+ 3, /* number of voices */
+ 0 /* stereo */
+};
+
+
+
+/*************************************
+ *
+ * Machine drivers
+ *
+ *************************************/
+
+static MACHINE_CONFIG_START( jrpacman, jrpacman_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, 18432000/6) /* 3.072 MHz */
+ MCFG_CPU_PROGRAM_MAP(main_map)
+ MCFG_CPU_IO_MAP(port_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60.606060)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(36*8, 28*8)
+ MCFG_SCREEN_VISIBLE_AREA(0*8, 36*8-1, 0*8, 28*8-1)
+ MCFG_SCREEN_UPDATE(pacman)
+
+ MCFG_GFXDECODE(jrpacman)
+ MCFG_PALETTE_LENGTH(128*4)
+
+ MCFG_PALETTE_INIT(pacman)
+ MCFG_VIDEO_START(jrpacman)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("namco", NAMCO, 3072000/32)
+ MCFG_SOUND_CONFIG(namco_config)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_CONFIG_END
+
+
+
+/*************************************
+ *
+ * ROM definitions
+ *
+ *************************************/
+
+ROM_START( jrpacman )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "jrp8d.bin", 0x0000, 0x2000, CRC(e3fa972e) SHA1(5ea34621213c649ca2848ab31aab2cbe751723d4) )
+ ROM_LOAD( "jrp8e.bin", 0x2000, 0x2000, CRC(ec889e94) SHA1(8294e9e79f8fd19a419431fa690e6ac4a1302f58) )
+ ROM_LOAD( "jrp8h.bin", 0x8000, 0x2000, CRC(35f1fc6e) SHA1(b84b34560b9aae18b24274712b052283faa01730) )
+ ROM_LOAD( "jrp8j.bin", 0xa000, 0x2000, CRC(9737099e) SHA1(07d912a61824323c8fc1b8bd0da89172d4f70b91) )
+ ROM_LOAD( "jrp8k.bin", 0xc000, 0x2000, CRC(5252dd97) SHA1(18bd4d5381656120e4242811006c20776774de4d) )
+
+ ROM_REGION( 0x4000, "gfx1", 0 )
+ ROM_LOAD( "jrp2c.bin", 0x0000, 0x2000, CRC(0527ff9b) SHA1(37fe3176b0d125b7d629e108e7ebdc1196e4a132) ) /* tiles (bank 1 & 2) */
+ ROM_LOAD( "jrp2e.bin", 0x2000, 0x2000, CRC(73477193) SHA1(f00a488958ea0438642d345693787bdf771219ad) ) /* sprites (bank 1 & 2) */
+
+ ROM_REGION( 0x0120, "proms", 0 )
+ ROM_LOAD_NIB_LOW ( "jrprom.9e", 0x0000, 0x0100, CRC(029d35c4) SHA1(d9aa2dc442e9ac36cf3c346b9fb1aa745eaf3cb8) ) /* color palette (low bits) */
+ ROM_LOAD_NIB_HIGH( "jrprom.9f", 0x0000, 0x0100, CRC(eee34a79) SHA1(7561f8ccab2af85c111af6a02af6986eb67503e5) ) /* color palette (high bits) */
+ ROM_LOAD( "jrprom.9p", 0x0020, 0x0100, CRC(9f6ea9d8) SHA1(62cf15513934d34641433c891a7f73bef82e2fb1) ) /* color lookup table */
+
+ ROM_REGION( 0x0200, "namco", 0 )
+ ROM_LOAD( "jrprom.7p", 0x0000, 0x0100, CRC(a9cc86bf) SHA1(bbcec0570aeceb582ff8238a4bc8546a23430081) ) /* waveform */
+ ROM_LOAD( "jrprom.5s", 0x0100, 0x0100, CRC(77245b66) SHA1(0c4d0bee858b97632411c440bea6948a74759746) ) /* timing - not used */
+ROM_END
+
+
+
+/*************************************
+ *
+ * Driver initialization
+ *
+ *************************************/
+
+static DRIVER_INIT( jrpacman )
+{
+ /* The encryption PALs garble bits 0, 2 and 7 of the ROMs. The encryption */
+ /* scheme is complex (basically it's a state machine) and can only be */
+ /* faithfully emulated at run time. To avoid the performance hit that would */
+ /* cause, here we have a table of the values which must be XORed with */
+ /* each memory region to obtain the decrypted bytes. */
+ /* Decryption table provided by David Caldwell (david@indigita.com) */
+ /* For an accurate reproduction of the encryption, see jrcrypt.c */
+ static const struct {
+ int count;
+ int value;
+ } table[] =
+ {
+ { 0x00C1, 0x00 },{ 0x0002, 0x80 },{ 0x0004, 0x00 },{ 0x0006, 0x80 },
+ { 0x0003, 0x00 },{ 0x0002, 0x80 },{ 0x0009, 0x00 },{ 0x0004, 0x80 },
+ { 0x9968, 0x00 },{ 0x0001, 0x80 },{ 0x0002, 0x00 },{ 0x0001, 0x80 },
+ { 0x0009, 0x00 },{ 0x0002, 0x80 },{ 0x0009, 0x00 },{ 0x0001, 0x80 },
+ { 0x00AF, 0x00 },{ 0x000E, 0x04 },{ 0x0002, 0x00 },{ 0x0004, 0x04 },
+ { 0x001E, 0x00 },{ 0x0001, 0x80 },{ 0x0002, 0x00 },{ 0x0001, 0x80 },
+ { 0x0002, 0x00 },{ 0x0002, 0x80 },{ 0x0009, 0x00 },{ 0x0002, 0x80 },
+ { 0x0009, 0x00 },{ 0x0002, 0x80 },{ 0x0083, 0x00 },{ 0x0001, 0x04 },
+ { 0x0001, 0x01 },{ 0x0001, 0x00 },{ 0x0002, 0x05 },{ 0x0001, 0x00 },
+ { 0x0003, 0x04 },{ 0x0003, 0x01 },{ 0x0002, 0x00 },{ 0x0001, 0x04 },
+ { 0x0003, 0x01 },{ 0x0003, 0x00 },{ 0x0003, 0x04 },{ 0x0001, 0x01 },
+ { 0x002E, 0x00 },{ 0x0078, 0x01 },{ 0x0001, 0x04 },{ 0x0001, 0x05 },
+ { 0x0001, 0x00 },{ 0x0001, 0x01 },{ 0x0001, 0x04 },{ 0x0002, 0x00 },
+ { 0x0001, 0x01 },{ 0x0001, 0x04 },{ 0x0002, 0x00 },{ 0x0001, 0x01 },
+ { 0x0001, 0x04 },{ 0x0002, 0x00 },{ 0x0001, 0x01 },{ 0x0001, 0x04 },
+ { 0x0001, 0x05 },{ 0x0001, 0x00 },{ 0x0001, 0x01 },{ 0x0001, 0x04 },
+ { 0x0002, 0x00 },{ 0x0001, 0x01 },{ 0x0001, 0x04 },{ 0x0002, 0x00 },
+ { 0x0001, 0x01 },{ 0x0001, 0x04 },{ 0x0001, 0x05 },{ 0x0001, 0x00 },
+ { 0x01B0, 0x01 },{ 0x0001, 0x00 },{ 0x0002, 0x01 },{ 0x00AD, 0x00 },
+ { 0x0031, 0x01 },{ 0x005C, 0x00 },{ 0x0005, 0x01 },{ 0x604E, 0x00 },
+ { 0,0 }
+ };
+
+ UINT8 *RAM = machine.region("maincpu")->base();
+ int i, j, A;
+
+ for (i = A = 0; table[i].count; i++)
+ for (j = 0; j < table[i].count; j++)
+ RAM[A++] ^= table[i].value;
+}
+
+
+
+/*************************************
+ *
+ * Game drivers
+ *
+ *************************************/
+
+GAME( 1983, jrpacman, 0, jrpacman, jrpacman, jrpacman, ROT90, "Bally Midway", "Jr. Pac-Man", GAME_SUPPORTS_SAVE )