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Diffstat (limited to 'src/mame/drivers/hexa.c')
-rw-r--r--src/mame/drivers/hexa.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/src/mame/drivers/hexa.c b/src/mame/drivers/hexa.c
new file mode 100644
index 00000000000..9a8e2461baa
--- /dev/null
+++ b/src/mame/drivers/hexa.c
@@ -0,0 +1,204 @@
+/****************************************************************************
+
+ This hardware is derived from Arkanoid's hardware. The 1986 date found in
+ the roms probably comes from Arkanoid. This is a Columns style game and
+ the original Columns wasn't released until 1990 and I find it hard to
+ believe that this would pre-date Columns.
+
+HEXA
+
+driver by Howie Cohen
+
+Memory map (prelim)
+0000 7fff ROM
+8000 bfff bank switch rom space??
+c000 c7ff RAM
+e000 e7ff video ram
+e800-efff unused RAM
+
+read:
+d001 AY8910 read
+f000 ???????
+
+write:
+d000 AY8910 control
+d001 AY8910 write
+d008 bit0/1 = flip screen x/y
+ bit 4 = ROM bank??
+ bit 5 = char bank
+ other bits????????
+d010 watchdog reset, or IRQ acknowledge, or both
+f000 ????????
+
+*************************************************************************/
+
+#include "driver.h"
+#include "sound/ay8910.h"
+
+
+
+VIDEO_START( hexa );
+VIDEO_UPDATE( hexa );
+WRITE8_HANDLER( hexa_videoram_w );
+WRITE8_HANDLER( hexa_d008_w );
+
+
+
+static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM)
+ AM_RANGE(0x8000, 0xbfff) AM_READ(MRA8_BANK1)
+ AM_RANGE(0xc000, 0xc7ff) AM_READ(MRA8_RAM)
+ AM_RANGE(0xd001, 0xd001) AM_READ(AY8910_read_port_0_r)
+ AM_RANGE(0xe000, 0xe7ff) AM_READ(MRA8_RAM)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0xbfff) AM_WRITE(MWA8_ROM)
+ AM_RANGE(0xc000, 0xc7ff) AM_WRITE(MWA8_RAM)
+ AM_RANGE(0xd000, 0xd000) AM_WRITE(AY8910_control_port_0_w)
+ AM_RANGE(0xd001, 0xd001) AM_WRITE(AY8910_write_port_0_w)
+ AM_RANGE(0xd008, 0xd008) AM_WRITE(hexa_d008_w)
+ AM_RANGE(0xd010, 0xd010) AM_WRITE(watchdog_reset_w) /* or IRQ acknowledge, or both */
+ AM_RANGE(0xe000, 0xe7ff) AM_WRITE(hexa_videoram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
+ADDRESS_MAP_END
+
+
+
+static INPUT_PORTS_START( hexa )
+ PORT_START /* IN0 */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 )
+
+ PORT_START /* DSW */
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) )
+ PORT_DIPNAME( 0x04, 0x00, "Naughty Pics" )
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x30, 0x30, "Difficulty?" )
+ PORT_DIPSETTING( 0x30, "Easy?" )
+ PORT_DIPSETTING( 0x20, "Medium?" )
+ PORT_DIPSETTING( 0x10, "Hard?" )
+ PORT_DIPSETTING( 0x00, "Hardest?" )
+ PORT_DIPNAME( 0x40, 0x40, "Pobys" )
+ PORT_DIPSETTING( 0x40, "2" )
+ PORT_DIPSETTING( 0x00, "4" )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+INPUT_PORTS_END
+
+
+
+static const gfx_layout charlayout =
+{
+ 8,8, /* 8 by 8 */
+ 4096, /* 4096 characters */
+ 3, /* 3 bits per pixel */
+ { 2*4096*8*8, 4096*8*8, 0 }, /* plane */
+ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* x bit */
+ { 8*0, 8*1, 8*2, 8*3, 8*4, 8*5, 8*6, 8*7 }, /* y bit */
+ 8*8
+};
+
+
+
+static GFXDECODE_START( hexa )
+ GFXDECODE_ENTRY( REGION_GFX1, 0x0000, charlayout, 0 , 32 )
+GFXDECODE_END
+
+
+
+static struct AY8910interface ay8910_interface =
+{
+ input_port_0_r,
+ input_port_1_r,
+};
+
+
+
+static MACHINE_DRIVER_START( hexa )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(Z80, 4000000) /* 4 MHz ??????? */
+ MDRV_CPU_PROGRAM_MAP(readmem,writemem)
+ MDRV_CPU_VBLANK_INT(irq0_line_hold,1)
+
+ 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(32*8, 32*8)
+ MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
+ MDRV_GFXDECODE(hexa)
+ MDRV_PALETTE_LENGTH(256)
+
+ MDRV_PALETTE_INIT(RRRR_GGGG_BBBB)
+ MDRV_VIDEO_START(hexa)
+ MDRV_VIDEO_UPDATE(hexa)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+ MDRV_SOUND_ADD(AY8910, 1500000)
+ MDRV_SOUND_CONFIG(ay8910_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+MACHINE_DRIVER_END
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( hexa )
+ ROM_REGION( 0x18000, REGION_CPU1, 0 ) /* 64k for code + 32k for banked ROM */
+ ROM_LOAD( "hexa.20", 0x00000, 0x8000, CRC(98b00586) SHA1(3591a3b0486d720f0aaa9f0bf4be352cd0ffcbc7) )
+ ROM_LOAD( "hexa.21", 0x10000, 0x8000, CRC(3d5d006c) SHA1(ad4eadab82024b122182eacb5a322cfd6e476a70) )
+
+ ROM_REGION( 0x18000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "hexa.17", 0x00000, 0x8000, CRC(f6911dd6) SHA1(b12ea27ecddd60820a32d4346afab0cc9d06fa57) )
+ ROM_LOAD( "hexa.18", 0x08000, 0x8000, CRC(6e3d95d2) SHA1(6399b7b5d088ceda08fdea9cf650f6b405f038e7) )
+ ROM_LOAD( "hexa.19", 0x10000, 0x8000, CRC(ffe97a31) SHA1(f16b5d2b9ace09bcbbfe3dfb73db7fa377d1af7f) )
+
+ ROM_REGION( 0x0300, REGION_PROMS, 0 )
+ ROM_LOAD( "hexa.001", 0x0000, 0x0100, CRC(88a055b4) SHA1(eee86a7930d0a251f3e5c2134532cd1dede2026c) )
+ ROM_LOAD( "hexa.003", 0x0100, 0x0100, CRC(3e9d4932) SHA1(9a336dba7134400312985b9902c77b4141105853) )
+ ROM_LOAD( "hexa.002", 0x0200, 0x0100, CRC(ff15366c) SHA1(7feaf1c768bfe76432fb80991585e13d95960b34) )
+ROM_END
+
+
+
+static DRIVER_INIT( hexa )
+{
+#if 0
+ UINT8 *RAM = memory_region(REGION_CPU1);
+
+
+ /* Hexa is not protected or anything, but it keeps writing 0x3f to register */
+ /* 0x07 of the AY8910, to read the input ports. This causes clicks in the */
+ /* music since the output channels are continuously disabled and reenabled. */
+ /* To avoid that, we just NOP out the 0x3f write. */
+
+ RAM[0x0124] = 0x00;
+ RAM[0x0125] = 0x00;
+ RAM[0x0126] = 0x00;
+#endif
+}
+
+
+GAME( 199?, hexa, 0, hexa, hexa, hexa, ROT0, "D. R. Korea", "Hexa", 0 )