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/* MOLE ATTACK by Yachiyo Electronics Co.,LTD. 1982
Known Clones:
"Holey Moley", from tai (Thomas Automatics, Inc.)
emulated by Jason Nelson, Phil Stroffolino
Known Issues:
- some dips not mapped
- protection isn't fully understood, but game seems to be ok.
- cpu speeds unverified
Buttons are laid out as follows:
7 8 9
4 5 6
1 2 3
Working RAM notes:
0x2e0 number of credits
0x2F1 coin up trigger
0x2F2 round counter
0x2F3 flag value
0x2FD hammer aim for attract mode
0x2E1-E2 high score
0x2ED-EE score
0x301-309 presence and height of mole in each hole, from bottom left
0x30a
0x32E-336 if a hammer is above a mole. (Not the same as collision)
0x337 dip switch related
0x338 dip switch related
0x340 hammer control: manual=0; auto=1
0x34C round point 10s.
0x34D which bonus round pattern to use for moles.
0x349 button pressed (0..8 / 0xff)
0x350 number of players
0x351 irq-related
0x361
0x362
0x363
0x364
0x366 mirrors tile bank
0x36B controls which player is playing. (1 == player 2);
0x3DC affects mole popmessage
0x3E5 round point/passing point control?
0x3E7 round point/passing point control?
*/
#include "driver.h"
#include "cpu/m6502/m6502.h"
#include "sound/ay8910.h"
WRITE8_HANDLER(mole_videoram_w);
WRITE8_HANDLER(mole_tilebank_w);
WRITE8_HANDLER(mole_flipscreen_w);
PALETTE_INIT(mole);
VIDEO_START(mole);
VIDEO_UPDATE(mole);
static READ8_HANDLER( mole_protection_r )
{
/* Following are all known examples of Mole Attack
** code reading from the protection circuitry:
**
** 5b0b:
** ram[0x0361] = (ram[0x885+ram[0x8a5])&ram[0x886]
** ram[0x0363] = ram[0x886]
**
** 53c9:
** ram[0xe0] = ram[0x800]+ram[0x802]+ram[0x804]
** ram[0xea] = ram[0x828]
**
** ram[0xe2] = (ram[0x806]&ram[0x826])|ram[0x820]
** ram[0xe3] = ram[0x826]
**
** ram[0x361] = (ram[0x8cd]&ram[0x8ad])|ram[0x8ce]
** ram[0x362] = ram[0x8ae] = 0x32
**
** ram[0x363] = ram[0x809]+ram[0x829]+ram[0x828]
** ram[0x364] = ram[0x808]
*/
switch (offset)
{
case 0x08: return 0xb0; /* random mole placement */
case 0x26:
if (cpu_get_pc(space->cpu) == 0x53d7)
{
return 0x06; /* bonus round */
}
else
{ // pc == 0x515b, 0x5162
return 0xc6; /* game start */
}
case 0x86: return 0x91; /* game over */
case 0xae: return 0x32; /* coinage */
}
/* The above are critical protection reads.
** It isn't clear what effect (if any) the
** remaining reads have; for now we simply
** return 0x00
*/
return 0x00;
}
static ADDRESS_MAP_START( mole_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x03ff) AM_RAM
AM_RANGE(0x0800, 0x08ff) AM_READ(mole_protection_r)
AM_RANGE(0x0800, 0x0800) AM_WRITENOP // ???
AM_RANGE(0x0820, 0x0820) AM_WRITENOP // ???
AM_RANGE(0x5000, 0x7fff) AM_MIRROR(0x8000) AM_ROM
AM_RANGE(0x8000, 0x83ff) AM_RAM_WRITE(mole_videoram_w) AM_BASE_GENERIC(videoram)
AM_RANGE(0x8400, 0x8400) AM_WRITE(mole_tilebank_w)
AM_RANGE(0x8c00, 0x8c01) AM_DEVWRITE("aysnd", ay8910_data_address_w)
AM_RANGE(0x8c40, 0x8c40) AM_WRITENOP // ???
AM_RANGE(0x8c80, 0x8c80) AM_WRITENOP // ???
AM_RANGE(0x8c81, 0x8c81) AM_WRITENOP // ???
AM_RANGE(0x8d00, 0x8d00) AM_READ_PORT("DSW") AM_WRITE(watchdog_reset_w)
AM_RANGE(0x8d40, 0x8d40) AM_READ_PORT("IN0")
AM_RANGE(0x8d80, 0x8d80) AM_READ_PORT("IN1")
AM_RANGE(0x8dc0, 0x8dc0) AM_READ_PORT("IN2") AM_WRITE(mole_flipscreen_w)
ADDRESS_MAP_END
static INPUT_PORTS_START( mole )
PORT_START("DSW") /* 0x8d00 */
PORT_DIPNAME( 0x01, 0x00, "Round Points" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x00, DEF_STR( Coinage ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) )
PORT_DIPNAME( 0x0c, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, "A" )
PORT_DIPSETTING( 0x04, "B" )
PORT_DIPSETTING( 0x08, "C" )
PORT_DIPSETTING( 0x0c, "D" )
PORT_DIPNAME( 0x30, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, "A" )
PORT_DIPSETTING( 0x10, "B" )
PORT_DIPSETTING( 0x20, "C" )
PORT_DIPSETTING( 0x30, "D" )
PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("IN0") /* 0x8d40 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 1") PORT_CODE(KEYCODE_1_PAD)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 2") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 3") PORT_CODE(KEYCODE_3_PAD)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 4") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 5") PORT_CODE(KEYCODE_5_PAD)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 6") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 7") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 8") PORT_CODE(KEYCODE_8_PAD)
PORT_START("IN1") /* 0x8d80 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P1 Pad 9") PORT_CODE(KEYCODE_9_PAD)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 1") PORT_CODE(KEYCODE_Q) PORT_COCKTAIL
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 2") PORT_CODE(KEYCODE_W) PORT_COCKTAIL
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 3") PORT_CODE(KEYCODE_E) PORT_COCKTAIL
PORT_DIPNAME( 0x10, 0x00, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x10, DEF_STR( Cocktail ) )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_START("IN2") /* 0x8dc0 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 8") PORT_CODE(KEYCODE_X) PORT_COCKTAIL
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 7") PORT_CODE(KEYCODE_Z) PORT_COCKTAIL
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 4") PORT_CODE(KEYCODE_A) PORT_COCKTAIL
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 9") PORT_CODE(KEYCODE_C) PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 6") PORT_CODE(KEYCODE_D) PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("P2 Pad 5") PORT_CODE(KEYCODE_S) PORT_COCKTAIL
PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_UNUSED )
INPUT_PORTS_END
static const gfx_layout tile_layout =
{
8,8, /* character size */
512, /* number of characters */
3, /* number of bitplanes */
{ 0x0000*8, 0x1000*8, 0x2000*8 },
{ 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( mole )
GFXDECODE_ENTRY( "gfx1", 0x0000, tile_layout, 0x00, 1 )
GFXDECODE_ENTRY( "gfx1", 0x3000, tile_layout, 0x00, 1 )
GFXDECODE_END
static MACHINE_DRIVER_START( mole )
// basic machine hardware
MDRV_CPU_ADD("maincpu", M6502, 4000000) // ???
MDRV_CPU_PROGRAM_MAP(mole_map)
MDRV_CPU_VBLANK_INT("screen", irq0_line_hold)
// video hardware
MDRV_SCREEN_ADD("screen", RASTER)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_SCREEN_SIZE(40*8, 25*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 0*8, 25*8-1)
MDRV_GFXDECODE(mole)
MDRV_PALETTE_LENGTH(8)
MDRV_PALETTE_INIT(mole)
MDRV_VIDEO_START(mole)
MDRV_VIDEO_UPDATE(mole)
// sound hardware
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("aysnd", AY8910, 2000000)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END
ROM_START( mole ) // ALL ROMS ARE 2732
ROM_REGION( 0x10000, "maincpu", 0 ) // 64k for 6502 code
ROM_LOAD( "m3a.5h", 0x5000, 0x1000, CRC(5fbbdfef) SHA1(8129e90a05b3ca50f47f7610eec51c16c8609590) )
ROM_LOAD( "m2a.7h", 0x6000, 0x1000, CRC(f2a90642) SHA1(da6887725d70924fc4b9cca83172276976f5020c) )
ROM_LOAD( "m1a.8h", 0x7000, 0x1000, CRC(cff0119a) SHA1(48fc81b8c68e977680e7b8baf1193f0e7e0cd013) )
ROM_REGION( 0x6000, "gfx1", 0 )
ROM_LOAD( "mea.4a", 0x0000, 0x1000, CRC(49d89116) SHA1(aa4cde07e10624072e50ba5bd209acf93092cf78) )
ROM_LOAD( "mca.6a", 0x1000, 0x1000, CRC(04e90300) SHA1(c908a3a651e50428eedc2974160cdbf2ed946abc) )
ROM_LOAD( "maa.9a", 0x2000, 0x1000, CRC(6ce9442b) SHA1(c08bf0911f1dfd4a3f9452efcbb3fd3688c4bf8c) )
ROM_LOAD( "mfa.3a", 0x3000, 0x1000, CRC(0d0c7d13) SHA1(8a6d371571391f2b54ffa65b77e4e83fd607d2c9) )
ROM_LOAD( "mda.5a", 0x4000, 0x1000, CRC(41ae1842) SHA1(afc169c3245b0946ef81e65d0b755d498ee71667) )
ROM_LOAD( "mba.8a", 0x5000, 0x1000, CRC(50c43fc9) SHA1(af478f3d89cd6c87f32dcdda7fabce25738c340b) )
ROM_END
GAME( 1982, mole, 0, mole, mole, 0, ROT0, "Yachiyo Electronics, Ltd.", "Mole Attack", 0 )
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