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Diffstat (limited to 'src/mame/drivers/hexion.c')
-rw-r--r--src/mame/drivers/hexion.c341
1 files changed, 341 insertions, 0 deletions
diff --git a/src/mame/drivers/hexion.c b/src/mame/drivers/hexion.c
new file mode 100644
index 00000000000..a3b45e8c0c8
--- /dev/null
+++ b/src/mame/drivers/hexion.c
@@ -0,0 +1,341 @@
+/***************************************************************************
+
+Hexion (GX122) (c) 1992 Konami
+
+driver by Nicola Salmoria
+
+Notes:
+- There are probably palette PROMs missing. Palette data doesn't seem to be
+ written anywhere in RAM.
+- The board has a 052591, which is used for protection in Thunder Cross and
+ S.P.Y. In this game, however, the only thing it seems to do is clear the
+ screen.
+ This is the program for the 052591:
+00: 5f 80 01 e0 08
+01: df 80 00 e0 0c
+02: df 90 02 e0 0c
+03: df a0 03 e0 0c
+04: df b0 0f e0 0c
+05: df c0 ff bf 0c
+06: 5c 02 00 33 0c
+07: 5f 80 04 80 0c
+08: 5c 0e 00 2b 0c
+09: df 70 00 cb 08
+0a: 5f 80 00 80 0c
+0b: 5c 04 00 2b 0c
+0c: df 60 00 cb 08
+0d: 5c 0c 1f e9 0c
+0e: 4c 0c 2d e9 08
+0f: 5f 80 03 80 0c
+10: 5c 04 00 2b 0c
+11: 5f 00 00 cb 00
+12: 5f 80 02 a0 0c
+13: df d0 00 c0 04
+14: 01 3a 00 f3 0a
+15: 5c 08 00 b3 0c
+16: 5c 0e 00 13 0c
+17: 5f 80 00 a0 0c
+18: 5c 00 00 13 0c
+19: 5c 08 00 b3 0c
+1a: 5c 00 00 13 0c
+1b: 84 5a 00 b3 0c
+1c: 48 0a 5b d1 0c
+1d: 5f 80 00 e0 08
+1e: 5f 00 1e fd 0c
+1f: 5f 80 01 a0 0c
+20: df 20 00 cb 08
+21: 5c 08 00 b3 0c
+22: 5f 80 03 00 0c
+23: 5c 08 00 b3 0c
+24: 5f 80 00 80 0c
+25: 5c 00 00 33 0c
+26: 5c 08 00 93 0c
+27: 9f 91 ff cf 0e
+28: 5c 84 00 20 0c
+29: 84 00 00 b3 0c
+2a: 49 10 69 d1 0c
+2b: 5f 80 00 e0 08
+2c: 5f 00 2c fd 0c
+2d: 5f 80 01 a0 0c
+2e: df 20 00 cb 08
+2f: 5c 08 00 b3 0c
+30: 5f 80 03 00 0c
+31: 5c 00 00 b3 0c
+32: 5f 80 01 00 0c
+33: 5c 08 00 b3 0c
+34: 5f 80 00 80 0c
+35: 5c 00 00 33 0c
+36: 5c 08 00 93 0c
+37: 9f 91 ff cf 0e
+38: 5c 84 00 20 0c
+39: 84 00 00 b3 0c
+3a: 49 10 79 d1 0c
+3b: 5f 80 00 e0 08
+3c: 5f 00 3c fd 0c
+3d: ff ff ff ff ff
+3e: ff ff ff ff ff
+3f: ff ff ff ff ff
+
+***************************************************************************/
+
+#include "driver.h"
+#include "sound/okim6295.h"
+#include "sound/k051649.h"
+
+
+VIDEO_START( hexion );
+VIDEO_UPDATE( hexion );
+
+WRITE8_HANDLER( hexion_bankswitch_w );
+READ8_HANDLER( hexion_bankedram_r );
+WRITE8_HANDLER( hexion_bankedram_w );
+WRITE8_HANDLER( hexion_bankctrl_w );
+WRITE8_HANDLER( hexion_gfxrom_select_w );
+
+
+
+static WRITE8_HANDLER( coincntr_w )
+{
+//logerror("%04x: coincntr_w %02x\n",activecpu_get_pc(),data);
+
+ /* bits 0/1 = coin counters */
+ coin_counter_w(0,data & 0x01);
+ coin_counter_w(1,data & 0x02);
+
+ /* bit 5 = flip screen */
+ flip_screen_set(data & 0x20);
+
+ /* other bit unknown */
+if ((data & 0xdc) != 0x10) popmessage("coincntr %02x",data);
+}
+
+
+
+static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM)
+ AM_RANGE(0x8000, 0x9fff) AM_READ(MRA8_BANK1)
+ AM_RANGE(0xa000, 0xbfff) AM_READ(MRA8_RAM)
+ AM_RANGE(0xc000, 0xdffe) AM_READ(hexion_bankedram_r)
+ AM_RANGE(0xf400, 0xf400) AM_READ(input_port_0_r)
+ AM_RANGE(0xf401, 0xf401) AM_READ(input_port_1_r)
+ AM_RANGE(0xf402, 0xf402) AM_READ(input_port_3_r)
+ AM_RANGE(0xf403, 0xf403) AM_READ(input_port_4_r)
+ AM_RANGE(0xf440, 0xf440) AM_READ(input_port_2_r)
+ AM_RANGE(0xf441, 0xf441) AM_READ(input_port_5_r)
+ AM_RANGE(0xf540, 0xf540) AM_READ(watchdog_reset_r)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM)
+ AM_RANGE(0xa000, 0xbfff) AM_WRITE(MWA8_RAM)
+ AM_RANGE(0xc000, 0xdffe) AM_WRITE(hexion_bankedram_w)
+ AM_RANGE(0xdfff, 0xdfff) AM_WRITE(hexion_bankctrl_w)
+ AM_RANGE(0xe800, 0xe87f) AM_WRITE(K051649_waveform_w)
+ AM_RANGE(0xe880, 0xe889) AM_WRITE(K051649_frequency_w)
+ AM_RANGE(0xe88a, 0xe88e) AM_WRITE(K051649_volume_w)
+ AM_RANGE(0xe88f, 0xe88f) AM_WRITE(K051649_keyonoff_w)
+ AM_RANGE(0xf000, 0xf00f) AM_WRITE(MWA8_NOP) /* 053252? f00e = IRQ ack, f00f = NMI ack */
+ AM_RANGE(0xf200, 0xf200) AM_WRITE(OKIM6295_data_0_w)
+ AM_RANGE(0xf480, 0xf480) AM_WRITE(hexion_bankswitch_w)
+ AM_RANGE(0xf4c0, 0xf4c0) AM_WRITE(coincntr_w)
+ AM_RANGE(0xf500, 0xf500) AM_WRITE(hexion_gfxrom_select_w)
+ADDRESS_MAP_END
+
+
+
+static INPUT_PORTS_START( hexion )
+ PORT_START
+ PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 4C_3C ) )
+ PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 3C_4C ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 2C_5C ) )
+ PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x09, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+ PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x50, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( 3C_2C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 4C_3C ) )
+ PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( 3C_4C ) )
+ PORT_DIPSETTING( 0x70, DEF_STR( 2C_3C ) )
+ PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x60, DEF_STR( 2C_5C ) )
+ PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x90, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) )
+
+ PORT_START
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x70, 0x70, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x70, DEF_STR( Easiest ) )
+ PORT_DIPSETTING( 0x60, DEF_STR( Very_Easy) )
+ PORT_DIPSETTING( 0x50, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( Medium ) )
+ PORT_DIPSETTING( 0x30, "Medium Hard" )
+ PORT_DIPSETTING( 0x20, DEF_STR( Hard ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Very_Hard ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) )
+ PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+
+ PORT_START
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START1 )
+
+ PORT_START
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
+
+ PORT_START
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* 052591? game waits for it to be 0 */
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+INPUT_PORTS_END
+
+
+
+static const gfx_layout charlayout =
+{
+ 8,8,
+ RGN_FRAC(1,2),
+ 4,
+ { 0, 1, 2, 3 },
+ { RGN_FRAC(1,2)+0*4, RGN_FRAC(1,2)+1*4, 0*4, 1*4, RGN_FRAC(1,2)+2*4, RGN_FRAC(1,2)+3*4, 2*4, 3*4 },
+ { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 },
+ 16*8
+};
+
+static GFXDECODE_START( hexion )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout, 0, 16 )
+GFXDECODE_END
+
+
+
+static INTERRUPT_GEN( hexion_interrupt )
+{
+ /* NMI handles start and coin inputs, origin unknown */
+ if (cpu_getiloops())
+ cpunum_set_input_line(0, INPUT_LINE_NMI, PULSE_LINE);
+ else
+ cpunum_set_input_line(0, 0, HOLD_LINE);
+}
+
+static MACHINE_DRIVER_START( hexion )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(Z80,24000000/4) /* Z80B 6 MHz */
+ MDRV_CPU_PROGRAM_MAP(readmem,writemem)
+ MDRV_CPU_VBLANK_INT(hexion_interrupt,3) /* both IRQ and NMI are used */
+
+ MDRV_SCREEN_REFRESH_RATE(60)
+ MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_SIZE(64*8, 32*8)
+ MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0*8, 32*8-1)
+ MDRV_GFXDECODE(hexion)
+ MDRV_PALETTE_LENGTH(256)
+
+ MDRV_PALETTE_INIT(RRRR_GGGG_BBBB)
+ MDRV_VIDEO_START(hexion)
+ MDRV_VIDEO_UPDATE(hexion)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(OKIM6295, 1056000)
+ MDRV_SOUND_CONFIG(okim6295_interface_region_1_pin7high) // clock frequency & pin 7 not verified
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+
+ MDRV_SOUND_ADD(K051649, 24000000/16)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
+MACHINE_DRIVER_END
+
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( hexion )
+ ROM_REGION( 0x34800, REGION_CPU1, 0 ) /* ROMs + space for additional RAM */
+ ROM_LOAD( "122jab01.bin", 0x00000, 0x20000, CRC(eabc6dd1) SHA1(e74c1f1f2fcf8973f0741a2d544f25c8639448bf) )
+ ROM_RELOAD( 0x10000, 0x20000 ) /* banked at 8000-9fff */
+
+ ROM_REGION( 0x80000, REGION_GFX1, 0 ) /* addressable by the main CPU */
+ ROM_LOAD( "122a07.bin", 0x00000, 0x40000, CRC(22ae55e3) SHA1(41bdc990f69416b639542e2186a3610c16389063) )
+ ROM_LOAD( "122a06.bin", 0x40000, 0x40000, CRC(438f4388) SHA1(9e23805c9642a237daeaf106187d1e1e0692434d) )
+
+ ROM_REGION( 0x40000, REGION_SOUND1, 0 ) /* OKIM6295 samples */
+ ROM_LOAD( "122a05.bin", 0x0000, 0x40000, CRC(bcc831bf) SHA1(c3382065dd0069a4dc0bde2d9931ec85b0bffc73) )
+
+ ROM_REGION( 0x0300, REGION_PROMS, 0 )
+ ROM_LOAD( "122a04.10b", 0x0000, 0x0100, CRC(506eb8c6) SHA1(3bff7cf286942d8bdbc3998245c3de20981fbecb) )
+ ROM_LOAD( "122a03.11b", 0x0100, 0x0100, CRC(590c4f64) SHA1(db4b34f8c5fdfea034a94d65873f6fb842f123e9) )
+ ROM_LOAD( "122a02.13b", 0x0200, 0x0100, CRC(5734305c) SHA1(c72e59acf79a4db1a5a9d827eef899c0675336f2) )
+ROM_END
+
+
+GAME( 1992, hexion, 0, hexion, hexion, 0, ROT0, "Konami", "Hexion (Japan)", 0 )