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diff --git a/docs/release/src/mame/drivers/jrpacman.cpp b/docs/release/src/mame/drivers/jrpacman.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Nicola Salmoria
+/***************************************************************************
+
+ 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 "includes/pacman.h"
+
+#include "cpu/z80/z80.h"
+#include "machine/74259.h"
+#include "screen.h"
+#include "speaker.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) { }
+
+ void jrpacman(machine_config &config);
+
+ void init_jrpacman();
+
+private:
+ DECLARE_WRITE8_MEMBER(jrpacman_interrupt_vector_w);
+ DECLARE_WRITE_LINE_MEMBER(irq_mask_w);
+ DECLARE_WRITE_LINE_MEMBER(vblank_irq);
+ void main_map(address_map &map);
+ void port_map(address_map &map);
+};
+
+
+
+WRITE8_MEMBER(jrpacman_state::jrpacman_interrupt_vector_w)
+{
+ m_maincpu->set_input_line_vector(0, data); // Z80
+ m_maincpu->set_input_line(0, CLEAR_LINE);
+}
+
+WRITE_LINE_MEMBER(jrpacman_state::irq_mask_w)
+{
+ m_irq_mask = state;
+}
+
+/*************************************
+ *
+ * Main CPU memory handlers
+ *
+ *************************************/
+
+void jrpacman_state::main_map(address_map &map)
+{
+ map(0x0000, 0x3fff).rom();
+ map(0x4000, 0x47ff).ram().w(FUNC(jrpacman_state::jrpacman_videoram_w)).share("videoram");
+ map(0x4800, 0x4fef).ram();
+ map(0x4ff0, 0x4fff).ram().share("spriteram");
+ map(0x5000, 0x503f).portr("P1");
+ map(0x5000, 0x5007).w("latch1", FUNC(ls259_device::write_d0));
+ map(0x5040, 0x507f).portr("P2");
+ map(0x5040, 0x505f).w(m_namco_sound, FUNC(namco_device::pacman_sound_w));
+ map(0x5060, 0x506f).writeonly().share("spriteram2");
+ map(0x5070, 0x5077).w("latch2", FUNC(ls259_device::write_d0));
+ map(0x5080, 0x50bf).portr("DSW");
+ map(0x5080, 0x5080).w(FUNC(jrpacman_state::jrpacman_scroll_w));
+ map(0x50c0, 0x50c0).w(m_watchdog, FUNC(watchdog_timer_device::reset_w));
+ map(0x8000, 0xdfff).rom();
+// HBMAME extras
+ map(0x5002, 0x5002).nopw();
+ map(0x5004, 0x5005).w(this, FUNC(pacman_state::pacman_leds_w));
+ map(0x5006, 0x5006).nopw();
+ map(0x5007, 0x5007).nopw();
+ map(0x5072, 0x5072).nopw();
+ map(0x5076, 0x507f).nopw();
+ map(0xfffc, 0xffff).ram(); /* for jrfast and fastjr */
+}
+
+
+void jrpacman_state::port_map(address_map &map)
+{
+ map.global_mask(0xff);
+ map(0, 0).w(FUNC(jrpacman_state::jrpacman_interrupt_vector_w));
+}
+
+
+
+/*************************************
+ *
+ * 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
+ /* Press this to instantly finish the level - HBMAME */
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Finish Level (Cheat)") PORT_CODE(KEYCODE_8)
+ 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 ) )
+
+// HBMAME extras
+ PORT_START ("FAKE")
+ /* This fake input port is used to get the status of the fire button */
+ /* and activate the speedup cheat. */
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME( "Speed (Cheat)" )
+ PORT_DIPNAME( 0x06, 0x02, "Speed Cheat" )
+ PORT_DIPSETTING( 0x00, "Disabled" )
+ PORT_DIPSETTING( 0x02, "Enabled with Button" )
+ PORT_DIPSETTING( 0x04, "Enabled Always" )
+
+ PORT_START ("CONFIG")
+ PORT_CONFNAME( 0x01, 0x01, "Level" )
+ PORT_CONFSETTING( 0x00, DEF_STR( Off ) )
+ PORT_CONFSETTING( 0x01, 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( gfx_jrpacman )
+ GFXDECODE_ENTRY( "gfx1", 0x0000, tilelayout, 0, 128 )
+ GFXDECODE_ENTRY( "gfx1", 0x2000, spritelayout, 0, 128 )
+GFXDECODE_END
+
+
+
+/*************************************
+ *
+ * Machine drivers
+ *
+ *************************************/
+
+WRITE_LINE_MEMBER(jrpacman_state::vblank_irq)
+{
+ if (state && m_irq_mask)
+ m_maincpu->set_input_line(0, HOLD_LINE);
+}
+
+void jrpacman_state::jrpacman(machine_config &config)
+{
+ /* basic machine hardware */
+ Z80(config, m_maincpu, 18432000/6); /* 3.072 MHz */
+ m_maincpu->set_addrmap(AS_PROGRAM, &jrpacman_state::main_map);
+ m_maincpu->set_addrmap(AS_IO, &jrpacman_state::port_map);
+
+ ls259_device &latch1(LS259(config, "latch1")); // 5P
+ latch1.q_out_cb<0>().set(FUNC(jrpacman_state::irq_mask_w));
+ latch1.q_out_cb<1>().set("namco", FUNC(namco_device::sound_enable_w));
+ latch1.q_out_cb<3>().set(FUNC(jrpacman_state::flipscreen_w));
+ latch1.q_out_cb<7>().set(FUNC(jrpacman_state::coin_counter_w));
+
+ ls259_device &latch2(LS259(config, "latch2")); // 1H
+ latch2.q_out_cb<0>().set(FUNC(jrpacman_state::pengo_palettebank_w));
+ latch2.q_out_cb<1>().set(FUNC(jrpacman_state::pengo_colortablebank_w));
+ latch2.q_out_cb<3>().set(FUNC(jrpacman_state::jrpacman_bgpriority_w));
+ latch2.q_out_cb<4>().set(FUNC(jrpacman_state::jrpacman_charbank_w));
+ latch2.q_out_cb<5>().set(FUNC(jrpacman_state::jrpacman_spritebank_w));
+
+ WATCHDOG_TIMER(config, m_watchdog);
+
+ /* video hardware */
+ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+ screen.set_refresh_hz(60.606060);
+ screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
+ screen.set_size(36*8, 28*8);
+ screen.set_visarea(0*8, 36*8-1, 0*8, 28*8-1);
+ screen.set_screen_update(FUNC(jrpacman_state::screen_update_pacman));
+ screen.set_palette(m_palette);
+ //screen.screen_vblank().set(FUNC(jrpacman_state::vblank_irq)); // HBMAME
+ screen.screen_vblank().set(FUNC(jrpacman_state::pacman_interrupt)); // HBMAME
+
+ GFXDECODE(config, m_gfxdecode, m_palette, gfx_jrpacman);
+ PALETTE(config, m_palette, FUNC(jrpacman_state::pacman_palette), 128 * 4, 32);
+
+ MCFG_VIDEO_START_OVERRIDE(jrpacman_state,jrpacman)
+
+ /* sound hardware */
+ SPEAKER(config, "mono").front_center();
+
+ NAMCO(config, m_namco_sound, 3072000/32);
+ m_namco_sound->set_voices(3);
+ m_namco_sound->add_route(ALL_OUTPUTS, "mono", 1.0);
+}
+
+
+
+/*************************************
+ *
+ * ROM definitions
+ *
+ *************************************/
+
+ROM_START( jrpacman )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "jrp8d.8d", 0x0000, 0x2000, CRC(e3fa972e) SHA1(5ea34621213c649ca2848ab31aab2cbe751723d4) )
+ ROM_LOAD( "jrp8e.8e", 0x2000, 0x2000, CRC(ec889e94) SHA1(8294e9e79f8fd19a419431fa690e6ac4a1302f58) )
+ ROM_LOAD( "jrp8h.8h", 0x8000, 0x2000, CRC(35f1fc6e) SHA1(b84b34560b9aae18b24274712b052283faa01730) )
+ ROM_LOAD( "jrp8j.8j", 0xa000, 0x2000, CRC(9737099e) SHA1(07d912a61824323c8fc1b8bd0da89172d4f70b91) )
+ ROM_LOAD( "jrp8k.8k", 0xc000, 0x2000, CRC(5252dd97) SHA1(18bd4d5381656120e4242811006c20776774de4d) )
+
+ ROM_REGION( 0x4000, "gfx1", 0 )
+ ROM_LOAD( "jrp2c.2c", 0x0000, 0x2000, CRC(0527ff9b) SHA1(37fe3176b0d125b7d629e108e7ebdc1196e4a132) ) /* tiles (bank 1 & 2) */
+ ROM_LOAD( "jrp2e.2e", 0x2000, 0x2000, CRC(73477193) SHA1(f00a488958ea0438642d345693787bdf771219ad) ) /* sprites (bank 1 & 2) */
+
+ ROM_REGION( 0x0120, "proms", 0 )
+ ROM_LOAD_NIB_LOW ( "a290-27axv-bxhd.9e", 0x0000, 0x0100, CRC(029d35c4) SHA1(d9aa2dc442e9ac36cf3c346b9fb1aa745eaf3cb8) ) /* color palette (low bits) */
+ ROM_LOAD_NIB_HIGH( "a290-27axv-cxhd.9f", 0x0000, 0x0100, CRC(eee34a79) SHA1(7561f8ccab2af85c111af6a02af6986eb67503e5) ) /* color palette (high bits) */
+ ROM_LOAD( "a290-27axv-axhd.9p", 0x0020, 0x0100, CRC(9f6ea9d8) SHA1(62cf15513934d34641433c891a7f73bef82e2fb1) ) /* color lookup table */
+
+ ROM_REGION( 0x0200, "namco", 0 )
+ ROM_LOAD( "a290-27axv-dxhd.7p", 0x0000, 0x0100, CRC(a9cc86bf) SHA1(bbcec0570aeceb582ff8238a4bc8546a23430081) ) /* waveform */
+ ROM_LOAD( "a290-27axv-exhd.5s", 0x0100, 0x0100, CRC(77245b66) SHA1(0c4d0bee858b97632411c440bea6948a74759746) ) /* timing - not used */
+ROM_END
+
+ROM_START( jrpacmanf )
+ ROM_REGION( 0x10000, "maincpu", 0 )
+ ROM_LOAD( "fast_jr.8d", 0x0000, 0x2000, CRC(461e8b57) SHA1(42e25d384e653efb95a97bd64f55a8c3b3f71239) ) // only 1 byte difference
+ ROM_LOAD( "jrp8e.8e", 0x2000, 0x2000, CRC(ec889e94) SHA1(8294e9e79f8fd19a419431fa690e6ac4a1302f58) )
+ ROM_LOAD( "jrp8h.8h", 0x8000, 0x2000, CRC(35f1fc6e) SHA1(b84b34560b9aae18b24274712b052283faa01730) )
+ ROM_LOAD( "jrp8j.8j", 0xa000, 0x2000, CRC(9737099e) SHA1(07d912a61824323c8fc1b8bd0da89172d4f70b91) )
+ ROM_LOAD( "jrp8k.8k", 0xc000, 0x2000, CRC(5252dd97) SHA1(18bd4d5381656120e4242811006c20776774de4d) )
+
+ ROM_REGION( 0x4000, "gfx1", 0 )
+ ROM_LOAD( "jrp2c.2c", 0x0000, 0x2000, CRC(0527ff9b) SHA1(37fe3176b0d125b7d629e108e7ebdc1196e4a132) ) /* tiles (bank 1 & 2) */
+ ROM_LOAD( "jrp2e.2e", 0x2000, 0x2000, CRC(73477193) SHA1(f00a488958ea0438642d345693787bdf771219ad) ) /* sprites (bank 1 & 2) */
+
+ ROM_REGION( 0x0120, "proms", 0 )
+ ROM_LOAD_NIB_LOW ( "a290-27axv-bxhd.9e", 0x0000, 0x0100, CRC(029d35c4) SHA1(d9aa2dc442e9ac36cf3c346b9fb1aa745eaf3cb8) ) /* color palette (low bits) */
+ ROM_LOAD_NIB_HIGH( "a290-27axv-cxhd.9f", 0x0000, 0x0100, CRC(eee34a79) SHA1(7561f8ccab2af85c111af6a02af6986eb67503e5) ) /* color palette (high bits) */
+ ROM_LOAD( "a290-27axv-axhd.9p", 0x0020, 0x0100, CRC(9f6ea9d8) SHA1(62cf15513934d34641433c891a7f73bef82e2fb1) ) /* color lookup table */
+
+ ROM_REGION( 0x0200, "namco", 0 )
+ ROM_LOAD( "a290-27axv-dxhd.7p", 0x0000, 0x0100, CRC(a9cc86bf) SHA1(bbcec0570aeceb582ff8238a4bc8546a23430081) ) /* waveform */
+ ROM_LOAD( "a290-27axv-exhd.5s", 0x0100, 0x0100, CRC(77245b66) SHA1(0c4d0bee858b97632411c440bea6948a74759746) ) /* timing - not used */
+ROM_END
+
+
+
+/*************************************
+ *
+ * Driver initialization
+ *
+ *************************************/
+
+void jrpacman_state::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_t *RAM = memregion("maincpu")->base();
+ for (int i = 0, A = 0; table[i].count; i++)
+ for (int j = 0; j < table[i].count; j++)
+ RAM[A++] ^= table[i].value;
+}
+
+
+
+/*************************************
+ *
+ * Game drivers
+ *
+ *************************************/
+
+GAME( 1983, jrpacman, 0, jrpacman, jrpacman, jrpacman_state, init_jrpacman, ROT90, "Bally Midway", "Jr. Pac-Man (11/9/83)", MACHINE_SUPPORTS_SAVE )
+GAME( 1983, jrpacmanf, jrpacman, jrpacman, jrpacman, jrpacman_state, init_jrpacman, ROT90, "hack", "Jr. Pac-Man (speedup hack)", MACHINE_SUPPORTS_SAVE )